Replace `string-to-int' by `string-to-number'.
[emacs.git] / lisp / progmodes / cperl-mode.el
blob436bc04d0440d6dd24178ad53fe574207a952ed2
1 ;;; cperl-mode.el --- Perl code editing commands for Emacs
3 ;; Copyright (C) 1985,86,87,91,92,93,94,95,96,97,98,99,2000,03,2004,2005
4 ;; Free Software Foundation, Inc.
6 ;; Author: Ilya Zakharevich and Bob Olson
7 ;; Maintainer: Ilya Zakharevich <cperl@ilyaz.org>
8 ;; Keywords: languages, Perl
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
27 ;;; Corrections made by Ilya Zakharevich cperl@ilyaz.org
29 ;;; Commentary:
31 ;; You can either fine-tune the bells and whistles of this mode or
32 ;; bulk enable them by putting
34 ;; (setq cperl-hairy t)
36 ;; in your .emacs file. (Emacs rulers do not consider it politically
37 ;; correct to make whistles enabled by default.)
39 ;; DO NOT FORGET to read micro-docs (available from `Perl' menu) <<<<<<
40 ;; or as help on variables `cperl-tips', `cperl-problems', <<<<<<
41 ;; `cperl-praise', `cperl-speed'. <<<<<<
43 ;; The mode information (on C-h m) provides some customization help.
44 ;; If you use font-lock feature of this mode, it is advisable to use
45 ;; either lazy-lock-mode or fast-lock-mode. I prefer lazy-lock.
47 ;; Faces used now: three faces for first-class and second-class keywords
48 ;; and control flow words, one for each: comments, string, labels,
49 ;; functions definitions and packages, arrays, hashes, and variable
50 ;; definitions. If you do not see all these faces, your font-lock does
51 ;; not define them, so you need to define them manually.
53 ;; This mode supports font-lock, imenu and mode-compile. In the
54 ;; hairy version font-lock is on, but you should activate imenu
55 ;; yourself (note that mode-compile is not standard yet). Well, you
56 ;; can use imenu from keyboard anyway (M-x imenu), but it is better
57 ;; to bind it like that:
59 ;; (define-key global-map [M-S-down-mouse-3] 'imenu)
61 ;;; Font lock bugs as of v4.32:
63 ;; The following kinds of Perl code erroneously start strings:
64 ;; \$` \$' \$"
65 ;; $opt::s $opt_s $opt{s} (s => ...) /\s+.../
66 ;; likewise with m, tr, y, q, qX instead of s
68 ;;; Code:
70 ;; Some macros are needed for `defcustom'
71 (eval-when-compile
72 (condition-case nil
73 (require 'man)
74 (error nil))
75 (defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
76 (defvar cperl-can-font-lock
77 (or cperl-xemacs-p
78 (and (boundp 'emacs-major-version)
79 (or window-system
80 (> emacs-major-version 20)))))
81 (if cperl-can-font-lock
82 (require 'font-lock))
83 (defvar msb-menu-cond)
84 (defvar gud-perldb-history)
85 (defvar font-lock-background-mode) ; not in Emacs
86 (defvar font-lock-display-type) ; ditto
87 (defmacro cperl-is-face (arg) ; Takes quoted arg
88 (cond ((fboundp 'find-face)
89 `(find-face ,arg))
90 (;;(and (fboundp 'face-list)
91 ;; (face-list))
92 (fboundp 'face-list)
93 `(member ,arg (and (fboundp 'face-list)
94 (face-list))))
96 `(boundp ,arg))))
97 (defmacro cperl-make-face (arg descr) ; Takes unquoted arg
98 (cond ((fboundp 'make-face)
99 `(make-face (quote ,arg)))
101 `(defvar ,arg (quote ,arg) ,descr))))
102 (defmacro cperl-force-face (arg descr) ; Takes unquoted arg
103 `(progn
104 (or (cperl-is-face (quote ,arg))
105 (cperl-make-face ,arg ,descr))
106 (or (boundp (quote ,arg)) ; We use unquoted variants too
107 (defvar ,arg (quote ,arg) ,descr))))
108 (if cperl-xemacs-p
109 (defmacro cperl-etags-snarf-tag (file line)
110 `(progn
111 (beginning-of-line 2)
112 (list ,file ,line)))
113 (defmacro cperl-etags-snarf-tag (file line)
114 `(etags-snarf-tag)))
115 (if cperl-xemacs-p
116 (defmacro cperl-etags-goto-tag-location (elt)
117 ;;(progn
118 ;; (switch-to-buffer (get-file-buffer (elt (, elt) 0)))
119 ;; (set-buffer (get-file-buffer (elt (, elt) 0)))
120 ;; Probably will not work due to some save-excursion???
121 ;; Or save-file-position?
122 ;; (message "Did I get to line %s?" (elt (, elt) 1))
123 `(goto-line (string-to-number (elt ,elt 1))))
125 (defmacro cperl-etags-goto-tag-location (elt)
126 `(etags-goto-tag-location ,elt))))
128 (defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
130 (defvar cperl-can-font-lock
131 (or cperl-xemacs-p
132 (and (boundp 'emacs-major-version)
133 (or window-system
134 (> emacs-major-version 20)))))
136 (defun cperl-choose-color (&rest list)
137 (let (answer)
138 (while list
139 (or answer
140 (if (or (x-color-defined-p (car list))
141 (null (cdr list)))
142 (setq answer (car list))))
143 (setq list (cdr list)))
144 answer))
146 (defgroup cperl nil
147 "Major mode for editing Perl code."
148 :prefix "cperl-"
149 :group 'languages
150 :version "20.3")
152 (defgroup cperl-indentation-details nil
153 "Indentation."
154 :prefix "cperl-"
155 :group 'cperl)
157 (defgroup cperl-affected-by-hairy nil
158 "Variables affected by `cperl-hairy'."
159 :prefix "cperl-"
160 :group 'cperl)
162 (defgroup cperl-autoinsert-details nil
163 "Auto-insert tuneup."
164 :prefix "cperl-"
165 :group 'cperl)
167 (defgroup cperl-faces nil
168 "Fontification colors."
169 :prefix "cperl-"
170 :group 'cperl)
172 (defgroup cperl-speed nil
173 "Speed vs. validity tuneup."
174 :prefix "cperl-"
175 :group 'cperl)
177 (defgroup cperl-help-system nil
178 "Help system tuneup."
179 :prefix "cperl-"
180 :group 'cperl)
183 (defcustom cperl-extra-newline-before-brace nil
184 "*Non-nil means that if, elsif, while, until, else, for, foreach
185 and do constructs look like:
187 if ()
191 instead of:
193 if () {
195 :type 'boolean
196 :group 'cperl-autoinsert-details)
198 (defcustom cperl-extra-newline-before-brace-multiline
199 cperl-extra-newline-before-brace
200 "*Non-nil means the same as `cperl-extra-newline-before-brace', but
201 for constructs with multiline if/unless/while/until/for/foreach condition."
202 :type 'boolean
203 :group 'cperl-autoinsert-details)
205 (defcustom cperl-indent-level 2
206 "*Indentation of CPerl statements with respect to containing block."
207 :type 'integer
208 :group 'cperl-indentation-details)
210 (defcustom cperl-lineup-step nil
211 "*`cperl-lineup' will always lineup at multiple of this number.
212 If nil, the value of `cperl-indent-level' will be used."
213 :type '(choice (const nil) integer)
214 :group 'cperl-indentation-details)
216 (defcustom cperl-brace-imaginary-offset 0
217 "*Imagined indentation of a Perl open brace that actually follows a statement.
218 An open brace following other text is treated as if it were this far
219 to the right of the start of its line."
220 :type 'integer
221 :group 'cperl-indentation-details)
223 (defcustom cperl-brace-offset 0
224 "*Extra indentation for braces, compared with other text in same context."
225 :type 'integer
226 :group 'cperl-indentation-details)
227 (defcustom cperl-label-offset -2
228 "*Offset of CPerl label lines relative to usual indentation."
229 :type 'integer
230 :group 'cperl-indentation-details)
231 (defcustom cperl-min-label-indent 1
232 "*Minimal offset of CPerl label lines."
233 :type 'integer
234 :group 'cperl-indentation-details)
235 (defcustom cperl-continued-statement-offset 2
236 "*Extra indent for lines not starting new statements."
237 :type 'integer
238 :group 'cperl-indentation-details)
239 (defcustom cperl-continued-brace-offset 0
240 "*Extra indent for substatements that start with open-braces.
241 This is in addition to cperl-continued-statement-offset."
242 :type 'integer
243 :group 'cperl-indentation-details)
244 (defcustom cperl-close-paren-offset -1
245 "*Extra indent for substatements that start with close-parenthesis."
246 :type 'integer
247 :group 'cperl-indentation-details)
249 (defcustom cperl-auto-newline nil
250 "*Non-nil means automatically newline before and after braces,
251 and after colons and semicolons, inserted in CPerl code. The following
252 \\[cperl-electric-backspace] will remove the inserted whitespace.
253 Insertion after colons requires both this variable and
254 `cperl-auto-newline-after-colon' set."
255 :type 'boolean
256 :group 'cperl-autoinsert-details)
258 (defcustom cperl-autoindent-on-semi nil
259 "*Non-nil means automatically indent after insertion of (semi)colon.
260 Active if `cperl-auto-newline' is false."
261 :type 'boolean
262 :group 'cperl-autoinsert-details)
264 (defcustom cperl-auto-newline-after-colon nil
265 "*Non-nil means automatically newline even after colons.
266 Subject to `cperl-auto-newline' setting."
267 :type 'boolean
268 :group 'cperl-autoinsert-details)
270 (defcustom cperl-tab-always-indent t
271 "*Non-nil means TAB in CPerl mode should always reindent the current line,
272 regardless of where in the line point is when the TAB command is used."
273 :type 'boolean
274 :group 'cperl-indentation-details)
276 (defcustom cperl-font-lock nil
277 "*Non-nil (and non-null) means CPerl buffers will use `font-lock-mode'.
278 Can be overwritten by `cperl-hairy' if nil."
279 :type '(choice (const null) boolean)
280 :group 'cperl-affected-by-hairy)
282 (defcustom cperl-electric-lbrace-space nil
283 "*Non-nil (and non-null) means { after $ should be preceded by ` '.
284 Can be overwritten by `cperl-hairy' if nil."
285 :type '(choice (const null) boolean)
286 :group 'cperl-affected-by-hairy)
288 (defcustom cperl-electric-parens-string "({[]})<"
289 "*String of parentheses that should be electric in CPerl.
290 Closing ones are electric only if the region is highlighted."
291 :type 'string
292 :group 'cperl-affected-by-hairy)
294 (defcustom cperl-electric-parens nil
295 "*Non-nil (and non-null) means parentheses should be electric in CPerl.
296 Can be overwritten by `cperl-hairy' if nil."
297 :type '(choice (const null) boolean)
298 :group 'cperl-affected-by-hairy)
300 (defvar zmacs-regions) ; Avoid warning
302 (defcustom cperl-electric-parens-mark
303 (and window-system
304 (or (and (boundp 'transient-mark-mode) ; For Emacs
305 transient-mark-mode)
306 (and (boundp 'zmacs-regions) ; For XEmacs
307 zmacs-regions)))
308 "*Not-nil means that electric parens look for active mark.
309 Default is yes if there is visual feedback on mark."
310 :type 'boolean
311 :group 'cperl-autoinsert-details)
313 (defcustom cperl-electric-linefeed nil
314 "*If true, LFD should be hairy in CPerl, otherwise C-c LFD is hairy.
315 In any case these two mean plain and hairy linefeeds together.
316 Can be overwritten by `cperl-hairy' if nil."
317 :type '(choice (const null) boolean)
318 :group 'cperl-affected-by-hairy)
320 (defcustom cperl-electric-keywords nil
321 "*Not-nil (and non-null) means keywords are electric in CPerl.
322 Can be overwritten by `cperl-hairy' if nil."
323 :type '(choice (const null) boolean)
324 :group 'cperl-affected-by-hairy)
326 (defcustom cperl-electric-backspace-untabify t
327 "*Not-nil means electric-backspace will untabify in CPerl."
328 :type 'boolean
329 :group 'cperl-autoinsert-details)
331 (defcustom cperl-hairy nil
332 "*Not-nil means most of the bells and whistles are enabled in CPerl.
333 Affects: `cperl-font-lock', `cperl-electric-lbrace-space',
334 `cperl-electric-parens', `cperl-electric-linefeed', `cperl-electric-keywords',
335 `cperl-info-on-command-no-prompt', `cperl-clobber-lisp-bindings',
336 `cperl-lazy-help-time'."
337 :type 'boolean
338 :group 'cperl-affected-by-hairy)
340 (defcustom cperl-comment-column 32
341 "*Column to put comments in CPerl (use \\[cperl-indent] to lineup with code)."
342 :type 'integer
343 :group 'cperl-indentation-details)
345 (defcustom cperl-vc-header-alist '((SCCS "($sccs) = ('%W\%' =~ /(\\d+(\\.\\d+)+)/) ;")
346 (RCS "($rcs) = (' $Id\$ ' =~ /(\\d+(\\.\\d+)+)/) ;"))
347 "*What to use as `vc-header-alist' in CPerl."
348 :type '(repeat (list symbol string))
349 :group 'cperl)
351 (defcustom cperl-clobber-mode-lists
352 (not
353 (and
354 (boundp 'interpreter-mode-alist)
355 (assoc "miniperl" interpreter-mode-alist)
356 (assoc "\\.\\([pP][Llm]\\|al\\)$" auto-mode-alist)))
357 "*Whether to install us into `interpreter-' and `extension' mode lists."
358 :type 'boolean
359 :group 'cperl)
361 (defcustom cperl-info-on-command-no-prompt nil
362 "*Not-nil (and non-null) means not to prompt on C-h f.
363 The opposite behaviour is always available if prefixed with C-c.
364 Can be overwritten by `cperl-hairy' if nil."
365 :type '(choice (const null) boolean)
366 :group 'cperl-affected-by-hairy)
368 (defcustom cperl-clobber-lisp-bindings nil
369 "*Not-nil (and non-null) means not overwrite C-h f.
370 The function is available on \\[cperl-info-on-command], \\[cperl-get-help].
371 Can be overwritten by `cperl-hairy' if nil."
372 :type '(choice (const null) boolean)
373 :group 'cperl-affected-by-hairy)
375 (defcustom cperl-lazy-help-time nil
376 "*Not-nil (and non-null) means to show lazy help after given idle time.
377 Can be overwritten by `cperl-hairy' to be 5 sec if nil."
378 :type '(choice (const null) (const nil) integer)
379 :group 'cperl-affected-by-hairy)
381 (defcustom cperl-pod-face 'font-lock-comment-face
382 "*Face for POD highlighting."
383 :type 'face
384 :group 'cperl-faces)
386 (defcustom cperl-pod-head-face 'font-lock-variable-name-face
387 "*Face for POD highlighting.
388 Font for POD headers."
389 :type 'face
390 :group 'cperl-faces)
392 (defcustom cperl-here-face 'font-lock-string-face
393 "*Face for here-docs highlighting."
394 :type 'face
395 :group 'cperl-faces)
397 (defcustom cperl-invalid-face 'underline
398 "*Face for highlighting trailing whitespace."
399 :type 'face
400 :version "21.1"
401 :group 'cperl-faces)
403 (defcustom cperl-pod-here-fontify '(featurep 'font-lock)
404 "*Not-nil after evaluation means to highlight POD and here-docs sections."
405 :type 'boolean
406 :group 'cperl-faces)
408 (defcustom cperl-fontify-m-as-s t
409 "*Not-nil means highlight 1arg regular expressions operators same as 2arg."
410 :type 'boolean
411 :group 'cperl-faces)
413 (defcustom cperl-highlight-variables-indiscriminately nil
414 "*Non-nil means perform additional highlighting on variables.
415 Currently only changes how scalar variables are highlighted.
416 Note that that variable is only read at initialization time for
417 the variable `cperl-font-lock-keywords-2', so changing it after you've
418 entered CPerl mode the first time will have no effect."
419 :type 'boolean
420 :group 'cperl)
422 (defcustom cperl-pod-here-scan t
423 "*Not-nil means look for POD and here-docs sections during startup.
424 You can always make lookup from menu or using \\[cperl-find-pods-heres]."
425 :type 'boolean
426 :group 'cperl-speed)
428 (defcustom cperl-regexp-scan t
429 "*Not-nil means make marking of regular expression more thorough.
430 Effective only with `cperl-pod-here-scan'. Not implemented yet."
431 :type 'boolean
432 :group 'cperl-speed)
434 (defcustom cperl-imenu-addback nil
435 "*Not-nil means add backreferences to generated `imenu's.
436 May require patched `imenu' and `imenu-go'. Obsolete."
437 :type 'boolean
438 :group 'cperl-help-system)
440 (defcustom cperl-max-help-size 66
441 "*Non-nil means shrink-wrapping of info-buffer allowed up to these percents."
442 :type '(choice integer (const nil))
443 :group 'cperl-help-system)
445 (defcustom cperl-shrink-wrap-info-frame t
446 "*Non-nil means shrink-wrapping of info-buffer-frame allowed."
447 :type 'boolean
448 :group 'cperl-help-system)
450 (defcustom cperl-info-page "perl"
451 "*Name of the info page containing perl docs.
452 Older version of this page was called `perl5', newer `perl'."
453 :type 'string
454 :group 'cperl-help-system)
456 (defcustom cperl-use-syntax-table-text-property
457 (boundp 'parse-sexp-lookup-properties)
458 "*Non-nil means CPerl sets up and uses `syntax-table' text property."
459 :type 'boolean
460 :group 'cperl-speed)
462 (defcustom cperl-use-syntax-table-text-property-for-tags
463 cperl-use-syntax-table-text-property
464 "*Non-nil means: set up and use `syntax-table' text property generating TAGS."
465 :type 'boolean
466 :group 'cperl-speed)
468 (defcustom cperl-scan-files-regexp "\\.\\([pP][Llm]\\|xs\\)$"
469 "*Regexp to match files to scan when generating TAGS."
470 :type 'regexp
471 :group 'cperl)
473 (defcustom cperl-noscan-files-regexp
474 "/\\(\\.\\.?\\|SCCS\\|RCS\\|CVS\\|blib\\)$"
475 "*Regexp to match files/dirs to skip when generating TAGS."
476 :type 'regexp
477 :group 'cperl)
479 (defcustom cperl-regexp-indent-step nil
480 "*Indentation used when beautifying regexps.
481 If nil, the value of `cperl-indent-level' will be used."
482 :type '(choice integer (const nil))
483 :group 'cperl-indentation-details)
485 (defcustom cperl-indent-left-aligned-comments t
486 "*Non-nil means that the comment starting in leftmost column should indent."
487 :type 'boolean
488 :group 'cperl-indentation-details)
490 (defcustom cperl-under-as-char nil
491 "*Non-nil means that the _ (underline) should be treated as word char."
492 :type 'boolean
493 :group 'cperl)
495 (defcustom cperl-extra-perl-args ""
496 "*Extra arguments to use when starting Perl.
497 Currently used with `cperl-check-syntax' only."
498 :type 'string
499 :group 'cperl)
501 (defcustom cperl-message-electric-keyword t
502 "*Non-nil means that the `cperl-electric-keyword' prints a help message."
503 :type 'boolean
504 :group 'cperl-help-system)
506 (defcustom cperl-indent-region-fix-constructs 1
507 "*Amount of space to insert between `}' and `else' or `elsif'
508 in `cperl-indent-region'. Set to nil to leave as is. Values other
509 than 1 and nil will probably not work."
510 :type '(choice (const nil) (const 1))
511 :group 'cperl-indentation-details)
513 (defcustom cperl-break-one-line-blocks-when-indent t
514 "*Non-nil means that one-line if/unless/while/until/for/foreach BLOCKs
515 need to be reformatted into multiline ones when indenting a region."
516 :type 'boolean
517 :group 'cperl-indentation-details)
519 (defcustom cperl-fix-hanging-brace-when-indent t
520 "*Non-nil means that BLOCK-end `}' may be put on a separate line
521 when indenting a region.
522 Braces followed by else/elsif/while/until are excepted."
523 :type 'boolean
524 :group 'cperl-indentation-details)
526 (defcustom cperl-merge-trailing-else t
527 "*Non-nil means that BLOCK-end `}' followed by else/elsif/continue
528 may be merged to be on the same line when indenting a region."
529 :type 'boolean
530 :group 'cperl-indentation-details)
532 (defcustom cperl-indent-parens-as-block nil
533 "*Non-nil means that non-block ()-, {}- and []-groups are indented as blocks,
534 but for trailing \",\" inside the group, which won't increase indentation.
535 One should tune up `cperl-close-paren-offset' as well."
536 :type 'boolean
537 :group 'cperl-indentation-details)
539 (defcustom cperl-syntaxify-by-font-lock
540 (and cperl-can-font-lock
541 (boundp 'parse-sexp-lookup-properties))
542 "*Non-nil means that CPerl uses `font-lock's routines for syntaxification."
543 :type '(choice (const message) boolean)
544 :group 'cperl-speed)
546 (defcustom cperl-syntaxify-unwind
548 "*Non-nil means that CPerl unwinds to a start of a long construction
549 when syntaxifying a chunk of buffer."
550 :type 'boolean
551 :group 'cperl-speed)
553 (defcustom cperl-ps-print-face-properties
554 '((font-lock-keyword-face nil nil bold shadow)
555 (font-lock-variable-name-face nil nil bold)
556 (font-lock-function-name-face nil nil bold italic box)
557 (font-lock-constant-face nil "LightGray" bold)
558 (cperl-array-face nil "LightGray" bold underline)
559 (cperl-hash-face nil "LightGray" bold italic underline)
560 (font-lock-comment-face nil "LightGray" italic)
561 (font-lock-string-face nil nil italic underline)
562 (cperl-nonoverridable-face nil nil italic underline)
563 (font-lock-type-face nil nil underline)
564 (underline nil "LightGray" strikeout))
565 "List given as an argument to `ps-extend-face-list' in `cperl-ps-print'."
566 :type '(repeat (cons symbol
567 (cons (choice (const nil) string)
568 (cons (choice (const nil) string)
569 (repeat symbol)))))
570 :group 'cperl-faces)
572 (defvar cperl-dark-background
573 (cperl-choose-color "navy" "os2blue" "darkgreen"))
574 (defvar cperl-dark-foreground
575 (cperl-choose-color "orchid1" "orange"))
577 (defface cperl-nonoverridable-face
578 `((((class grayscale) (background light))
579 (:background "Gray90" :slant italic :underline t))
580 (((class grayscale) (background dark))
581 (:foreground "Gray80" :slant italic :underline t :weight bold))
582 (((class color) (background light))
583 (:foreground "chartreuse3"))
584 (((class color) (background dark))
585 (:foreground ,cperl-dark-foreground))
586 (t (:weight bold :underline t)))
587 "Font Lock mode face used non-overridable keywords and modifiers of regexps."
588 :group 'cperl-faces)
590 (defface cperl-array-face
591 `((((class grayscale) (background light))
592 (:background "Gray90" :weight bold))
593 (((class grayscale) (background dark))
594 (:foreground "Gray80" :weight bold))
595 (((class color) (background light))
596 (:foreground "Blue" :background "lightyellow2" :weight bold))
597 (((class color) (background dark))
598 (:foreground "yellow" :background ,cperl-dark-background :weight bold))
599 (t (:weight bold)))
600 "Font Lock mode face used to highlight array names."
601 :group 'cperl-faces)
603 (defface cperl-hash-face
604 `((((class grayscale) (background light))
605 (:background "Gray90" :weight bold :slant italic))
606 (((class grayscale) (background dark))
607 (:foreground "Gray80" :weight bold :slant italic))
608 (((class color) (background light))
609 (:foreground "Red" :background "lightyellow2" :weight bold :slant italic))
610 (((class color) (background dark))
611 (:foreground "Red" :background ,cperl-dark-background :weight bold :slant italic))
612 (t (:weight bold :slant italic)))
613 "Font Lock mode face used to highlight hash names."
614 :group 'cperl-faces)
618 ;;; Short extra-docs.
620 (defvar cperl-tips 'please-ignore-this-line
621 "Get maybe newer version of this package from
622 ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs
623 and/or
624 ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl
625 Subdirectory `cperl-mode' may contain yet newer development releases and/or
626 patches to related files.
628 For best results apply to an older Emacs the patches from
629 ftp://ftp.math.ohio-state.edu/pub/users/ilya/cperl-mode/patches
630 \(this upgrades syntax-parsing abilities of Emacsen v19.34 and
631 v20.2 up to the level of Emacs v20.3 - a must for a good Perl
632 mode.) As of beginning of 2003, XEmacs may provide a similar ability.
634 Get support packages choose-color.el (or font-lock-extra.el before
635 19.30), imenu-go.el from the same place. \(Look for other files there
636 too... ;-). Get a patch for imenu.el in 19.29. Note that for 19.30 and
637 later you should use choose-color.el *instead* of font-lock-extra.el
638 \(and you will not get smart highlighting in C :-().
640 Note that to enable Compile choices in the menu you need to install
641 mode-compile.el.
643 If your Emacs does not default to `cperl-mode' on Perl files, and you
644 want it to: put the following into your .emacs file:
646 (defalias 'perl-mode 'cperl-mode)
648 Get perl5-info from
649 $CPAN/doc/manual/info/perl-info.tar.gz
650 older version was on
651 http://www.metronet.com:70/9/perlinfo/perl5/manual/perl5-info.tar.gz
653 If you use imenu-go, run imenu on perl5-info buffer (you can do it
654 from Perl menu). If many files are related, generate TAGS files from
655 Tools/Tags submenu in Perl menu.
657 If some class structure is too complicated, use Tools/Hierarchy-view
658 from Perl menu, or hierarchic view of imenu. The second one uses the
659 current buffer only, the first one requires generation of TAGS from
660 Perl/Tools/Tags menu beforehand.
662 Run Perl/Tools/Insert-spaces-if-needed to fix your lazy typing.
664 Switch auto-help on/off with Perl/Tools/Auto-help.
666 Though with contemporary Emaxen CPerl mode should maintain the correct
667 parsing of Perl even when editing, sometimes it may be lost. Fix this by
669 \\[normal-mode]
671 In cases of more severe confusion sometimes it is helpful to do
673 \\[load-library] cperl-mode RET
674 \\[normal-mode]
676 Before reporting (non-)problems look in the problem section of online
677 micro-docs on what I know about CPerl problems.")
679 (defvar cperl-problems 'please-ignore-this-line
680 "Description of problems in CPerl mode.
681 Some faces will not be shown on some versions of Emacs unless you
682 install choose-color.el, available from
683 ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs/
685 `fill-paragraph' on a comment may leave the point behind the
686 paragraph. Parsing of lines with several <<EOF is not implemented
687 yet.
689 Emacs had a _very_ restricted syntax parsing engine until version
690 20.1. Most problems below are corrected starting from this version of
691 Emacs, and all of them should be fixed in version 20.3. (Or apply
692 patches to Emacs 19.33/34 - see tips.) XEmacs was very backward in
693 this respect (until 2003).
695 Note that even with newer Emacsen in some very rare cases the details
696 of interaction of `font-lock' and syntaxification may be not cleaned
697 up yet. You may get slightly different colors basing on the order of
698 fontification and syntaxification. Say, the initial faces is correct,
699 but editing the buffer breaks this.
701 Even with older Emacsen CPerl mode tries to corrects some Emacs
702 misunderstandings, however, for efficiency reasons the degree of
703 correction is different for different operations. The partially
704 corrected problems are: POD sections, here-documents, regexps. The
705 operations are: highlighting, indentation, electric keywords, electric
706 braces.
708 This may be confusing, since the regexp s#//#/#\; may be highlighted
709 as a comment, but it will be recognized as a regexp by the indentation
710 code. Or the opposite case, when a POD section is highlighted, but
711 may break the indentation of the following code (though indentation
712 should work if the balance of delimiters is not broken by POD).
714 The main trick (to make $ a \"backslash\") makes constructions like
715 ${aaa} look like unbalanced braces. The only trick I can think of is
716 to insert it as $ {aaa} (valid in perl5, not in perl4).
718 Similar problems arise in regexps, when /(\\s|$)/ should be rewritten
719 as /($|\\s)/. Note that such a transposition is not always possible.
721 The solution is to upgrade your Emacs or patch an older one. Note
722 that Emacs 20.2 has some bugs related to `syntax-table' text
723 properties. Patches are available on the main CPerl download site,
724 and on CPAN.
726 If these bugs cannot be fixed on your machine (say, you have an inferior
727 environment and cannot recompile), you may still disable all the fancy stuff
728 via `cperl-use-syntax-table-text-property'.")
730 (defvar cperl-praise 'please-ignore-this-line
731 "Advantages of CPerl mode.
733 0) It uses the newest `syntax-table' property ;-);
735 1) It does 99% of Perl syntax correct (as opposed to 80-90% in Perl
736 mode - but the latter number may have improved too in last years) even
737 with old Emaxen which do not support `syntax-table' property.
739 When using `syntax-table' property for syntax assist hints, it should
740 handle 99.995% of lines correct - or somesuch. It automatically
741 updates syntax assist hints when you edit your script.
743 2) It is generally believed to be \"the most user-friendly Emacs
744 package\" whatever it may mean (I doubt that the people who say similar
745 things tried _all_ the rest of Emacs ;-), but this was not a lonely
746 voice);
748 3) Everything is customizable, one-by-one or in a big sweep;
750 4) It has many easily-accessable \"tools\":
751 a) Can run program, check syntax, start debugger;
752 b) Can lineup vertically \"middles\" of rows, like `=' in
753 a = b;
754 cc = d;
755 c) Can insert spaces where this impoves readability (in one
756 interactive sweep over the buffer);
757 d) Has support for imenu, including:
758 1) Separate unordered list of \"interesting places\";
759 2) Separate TOC of POD sections;
760 3) Separate list of packages;
761 4) Hierarchical view of methods in (sub)packages;
762 5) and functions (by the full name - with package);
763 e) Has an interface to INFO docs for Perl; The interface is
764 very flexible, including shrink-wrapping of
765 documentation buffer/frame;
766 f) Has a builtin list of one-line explanations for perl constructs.
767 g) Can show these explanations if you stay long enough at the
768 corresponding place (or on demand);
769 h) Has an enhanced fontification (using 3 or 4 additional faces
770 comparing to font-lock - basically, different
771 namespaces in Perl have different colors);
772 i) Can construct TAGS basing on its knowledge of Perl syntax,
773 the standard menu has 6 different way to generate
774 TAGS (if \"by directory\", .xs files - with C-language
775 bindings - are included in the scan);
776 j) Can build a hierarchical view of classes (via imenu) basing
777 on generated TAGS file;
778 k) Has electric parentheses, electric newlines, uses Abbrev
779 for electric logical constructs
780 while () {}
781 with different styles of expansion (context sensitive
782 to be not so bothering). Electric parentheses behave
783 \"as they should\" in a presence of a visible region.
784 l) Changes msb.el \"on the fly\" to insert a group \"Perl files\";
785 m) Can convert from
786 if (A) { B }
788 B if A;
790 n) Highlights (by user-choice) either 3-delimiters constructs
791 (such as tr/a/b/), or regular expressions and `y/tr';
792 o) Highlights trailing whitespace;
793 p) Is able to manipulate Perl Regular Expressions to ease
794 conversion to a more readable form.
796 5) The indentation engine was very smart, but most of tricks may be
797 not needed anymore with the support for `syntax-table' property. Has
798 progress indicator for indentation (with `imenu' loaded).
800 6) Indent-region improves inline-comments as well; also corrects
801 whitespace *inside* the conditional/loop constructs.
803 7) Fill-paragraph correctly handles multi-line comments;
805 8) Can switch to different indentation styles by one command, and restore
806 the settings present before the switch.
808 9) When doing indentation of control constructs, may correct
809 line-breaks/spacing between elements of the construct.
811 10) Uses a linear-time algorith for indentation of regions (on Emaxen with
812 capable syntax engines).")
814 (defvar cperl-speed 'please-ignore-this-line
815 "This is an incomplete compendium of what is available in other parts
816 of CPerl documentation. (Please inform me if I skept anything.)
818 There is a perception that CPerl is slower than alternatives. This part
819 of documentation is designed to overcome this misconception.
821 *By default* CPerl tries to enable the most comfortable settings.
822 From most points of view, correctly working package is infinitely more
823 comfortable than a non-correctly working one, thus by default CPerl
824 prefers correctness over speed. Below is the guide how to change
825 settings if your preferences are different.
827 A) Speed of loading the file. When loading file, CPerl may perform a
828 scan which indicates places which cannot be parsed by primitive Emacs
829 syntax-parsing routines, and marks them up so that either
831 A1) CPerl may work around these deficiencies (for big chunks, mostly
832 PODs and HERE-documents), or
833 A2) On capable Emaxen CPerl will use improved syntax-handlings
834 which reads mark-up hints directly.
836 The scan in case A2 is much more comprehensive, thus may be slower.
838 User can disable syntax-engine-helping scan of A2 by setting
839 `cperl-use-syntax-table-text-property'
840 variable to nil (if it is set to t).
842 One can disable the scan altogether (both A1 and A2) by setting
843 `cperl-pod-here-scan'
844 to nil.
846 B) Speed of editing operations.
848 One can add a (minor) speedup to editing operations by setting
849 `cperl-use-syntax-table-text-property'
850 variable to nil (if it is set to t). This will disable
851 syntax-engine-helping scan, thus will make many more Perl
852 constructs be wrongly recognized by CPerl, thus may lead to
853 wrongly matched parentheses, wrong indentation, etc.
855 One can unset `cperl-syntaxify-unwind'. This might speed up editing
856 of, say, long POD sections.")
858 (defvar cperl-tips-faces 'please-ignore-this-line
859 "CPerl mode uses following faces for highlighting:
861 `cperl-array-face' Array names
862 `cperl-hash-face' Hash names
863 `font-lock-comment-face' Comments, PODs and whatever is considered
864 syntaxically to be not code
865 `font-lock-constant-face' HERE-doc delimiters, labels, delimiters of
866 2-arg operators s/y/tr/ or of RExen,
867 `font-lock-function-name-face' Special-cased m// and s//foo/, _ as
868 a target of a file tests, file tests,
869 subroutine names at the moment of definition
870 (except those conflicting with Perl operators),
871 package names (when recognized), format names
872 `font-lock-keyword-face' Control flow switch constructs, declarators
873 `cperl-nonoverridable-face' Non-overridable keywords, modifiers of RExen
874 `font-lock-string-face' Strings, qw() constructs, RExen, POD sections,
875 literal parts and the terminator of formats
876 and whatever is syntaxically considered
877 as string literals
878 `font-lock-type-face' Overridable keywords
879 `font-lock-variable-name-face' Variable declarations, indirect array and
880 hash names, POD headers/item names
881 `cperl-invalid-face' Trailing whitespace
883 Note that in several situations the highlighting tries to inform about
884 possible confusion, such as different colors for function names in
885 declarations depending on what they (do not) override, or special cases
886 m// and s/// which do not do what one would expect them to do.
888 Help with best setup of these faces for printout requested (for each of
889 the faces: please specify bold, italic, underline, shadow and box.)
891 \(Not finished.)")
895 ;;; Portability stuff:
897 (defmacro cperl-define-key (emacs-key definition &optional xemacs-key)
898 `(define-key cperl-mode-map
899 ,(if xemacs-key
900 `(if cperl-xemacs-p ,xemacs-key ,emacs-key)
901 emacs-key)
902 ,definition))
904 (defvar cperl-del-back-ch
905 (car (append (where-is-internal 'delete-backward-char)
906 (where-is-internal 'backward-delete-char-untabify)))
907 "Character generated by key bound to `delete-backward-char'.")
909 (and (vectorp cperl-del-back-ch) (= (length cperl-del-back-ch) 1)
910 (setq cperl-del-back-ch (aref cperl-del-back-ch 0)))
912 (defun cperl-mark-active () (mark)) ; Avoid undefined warning
913 (if cperl-xemacs-p
914 (progn
915 ;; "Active regions" are on: use region only if active
916 ;; "Active regions" are off: use region unconditionally
917 (defun cperl-use-region-p ()
918 (if zmacs-regions (mark) t)))
919 (defun cperl-use-region-p ()
920 (if transient-mark-mode mark-active t))
921 (defun cperl-mark-active () mark-active))
923 (defsubst cperl-enable-font-lock ()
924 cperl-can-font-lock)
926 (defun cperl-putback-char (c) ; Emacs 19
927 (set 'unread-command-events (list c))) ; Avoid undefined warning
929 (if cperl-xemacs-p
930 (defun cperl-putback-char (c) ; XEmacs >= 19.12
931 (setq unread-command-events (list (eval '(character-to-event c))))))
933 (or (fboundp 'uncomment-region)
934 (defun uncomment-region (beg end)
935 (interactive "r")
936 (comment-region beg end -1)))
938 (defvar cperl-do-not-fontify
939 (if (string< emacs-version "19.30")
940 'fontified
941 'lazy-lock)
942 "Text property which inhibits refontification.")
944 (defsubst cperl-put-do-not-fontify (from to &optional post)
945 ;; If POST, do not do it with postponed fontification
946 (if (and post cperl-syntaxify-by-font-lock)
948 (put-text-property (max (point-min) (1- from))
949 to cperl-do-not-fontify t)))
951 (defcustom cperl-mode-hook nil
952 "Hook run by CPerl mode."
953 :type 'hook
954 :group 'cperl)
956 (defvar cperl-syntax-state nil)
957 (defvar cperl-syntax-done-to nil)
958 (defvar cperl-emacs-can-parse (> (length (save-excursion
959 (parse-partial-sexp (point) (point)))) 9))
961 ;; Make customization possible "in reverse"
962 (defsubst cperl-val (symbol &optional default hairy)
963 (cond
964 ((eq (symbol-value symbol) 'null) default)
965 (cperl-hairy (or hairy t))
966 (t (symbol-value symbol))))
968 ;;; Probably it is too late to set these guys already, but it can help later:
970 ;;;(and cperl-clobber-mode-lists
971 ;;;(setq auto-mode-alist
972 ;;; (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
973 ;;;(and (boundp 'interpreter-mode-alist)
974 ;;; (setq interpreter-mode-alist (append interpreter-mode-alist
975 ;;; '(("miniperl" . perl-mode))))))
976 (eval-when-compile
977 (mapcar (lambda (p)
978 (condition-case nil
979 (require p)
980 (error nil)))
981 '(imenu easymenu etags timer man info))
982 (if (fboundp 'ps-extend-face-list)
983 (defmacro cperl-ps-extend-face-list (arg)
984 `(ps-extend-face-list ,arg))
985 (defmacro cperl-ps-extend-face-list (arg)
986 `(error "This version of Emacs has no `ps-extend-face-list'")))
987 ;; Calling `cperl-enable-font-lock' below doesn't compile on XEmacs,
988 ;; macros instead of defsubsts don't work on Emacs, so we do the
989 ;; expansion manually. Any other suggestions?
990 (require 'cl))
992 (defvar cperl-mode-abbrev-table nil
993 "Abbrev table in use in CPerl mode buffers.")
995 (add-hook 'edit-var-mode-alist '(perl-mode (regexp . "^cperl-")))
997 (defvar cperl-mode-map () "Keymap used in CPerl mode.")
999 (if cperl-mode-map nil
1000 (setq cperl-mode-map (make-sparse-keymap))
1001 (cperl-define-key "{" 'cperl-electric-lbrace)
1002 (cperl-define-key "[" 'cperl-electric-paren)
1003 (cperl-define-key "(" 'cperl-electric-paren)
1004 (cperl-define-key "<" 'cperl-electric-paren)
1005 (cperl-define-key "}" 'cperl-electric-brace)
1006 (cperl-define-key "]" 'cperl-electric-rparen)
1007 (cperl-define-key ")" 'cperl-electric-rparen)
1008 (cperl-define-key ";" 'cperl-electric-semi)
1009 (cperl-define-key ":" 'cperl-electric-terminator)
1010 (cperl-define-key "\C-j" 'newline-and-indent)
1011 (cperl-define-key "\C-c\C-j" 'cperl-linefeed)
1012 (cperl-define-key "\C-c\C-t" 'cperl-invert-if-unless)
1013 (cperl-define-key "\C-c\C-a" 'cperl-toggle-auto-newline)
1014 (cperl-define-key "\C-c\C-k" 'cperl-toggle-abbrev)
1015 (cperl-define-key "\C-c\C-w" 'cperl-toggle-construct-fix)
1016 (cperl-define-key "\C-c\C-f" 'auto-fill-mode)
1017 (cperl-define-key "\C-c\C-e" 'cperl-toggle-electric)
1018 (cperl-define-key "\C-c\C-ha" 'cperl-toggle-autohelp)
1019 (cperl-define-key "\e\C-q" 'cperl-indent-exp) ; Usually not bound
1020 (cperl-define-key [?\C-\M-\|] 'cperl-lineup
1021 [(control meta |)])
1022 ;;(cperl-define-key "\M-q" 'cperl-fill-paragraph)
1023 ;;(cperl-define-key "\e;" 'cperl-indent-for-comment)
1024 (cperl-define-key "\177" 'cperl-electric-backspace)
1025 (cperl-define-key "\t" 'cperl-indent-command)
1026 ;; don't clobber the backspace binding:
1027 (cperl-define-key "\C-c\C-hF" 'cperl-info-on-command
1028 [(control c) (control h) F])
1029 (if (cperl-val 'cperl-clobber-lisp-bindings)
1030 (progn
1031 (cperl-define-key "\C-hf"
1032 ;;(concat (char-to-string help-char) "f") ; does not work
1033 'cperl-info-on-command
1034 [(control h) f])
1035 (cperl-define-key "\C-hv"
1036 ;;(concat (char-to-string help-char) "v") ; does not work
1037 'cperl-get-help
1038 [(control h) v])
1039 (cperl-define-key "\C-c\C-hf"
1040 ;;(concat (char-to-string help-char) "f") ; does not work
1041 (key-binding "\C-hf")
1042 [(control c) (control h) f])
1043 (cperl-define-key "\C-c\C-hv"
1044 ;;(concat (char-to-string help-char) "v") ; does not work
1045 (key-binding "\C-hv")
1046 [(control c) (control h) v]))
1047 (cperl-define-key "\C-c\C-hf" 'cperl-info-on-current-command
1048 [(control c) (control h) f])
1049 (cperl-define-key "\C-c\C-hv"
1050 ;;(concat (char-to-string help-char) "v") ; does not work
1051 'cperl-get-help
1052 [(control c) (control h) v]))
1053 (if (and cperl-xemacs-p
1054 (<= emacs-minor-version 11) (<= emacs-major-version 19))
1055 (progn
1056 ;; substitute-key-definition is usefulness-deenhanced...
1057 (cperl-define-key "\M-q" 'cperl-fill-paragraph)
1058 (cperl-define-key "\e;" 'cperl-indent-for-comment)
1059 (cperl-define-key "\e\C-\\" 'cperl-indent-region))
1060 (substitute-key-definition
1061 'indent-sexp 'cperl-indent-exp
1062 cperl-mode-map global-map)
1063 (substitute-key-definition
1064 'indent-region 'cperl-indent-region
1065 cperl-mode-map global-map)
1066 (substitute-key-definition
1067 'indent-for-comment 'cperl-indent-for-comment
1068 cperl-mode-map global-map)))
1070 (defvar cperl-menu)
1071 (defvar cperl-lazy-installed)
1072 (defvar cperl-old-style nil)
1073 (condition-case nil
1074 (progn
1075 (require 'easymenu)
1076 (easy-menu-define
1077 cperl-menu cperl-mode-map "Menu for CPerl mode"
1078 '("Perl"
1079 ["Beginning of function" beginning-of-defun t]
1080 ["End of function" end-of-defun t]
1081 ["Mark function" mark-defun t]
1082 ["Indent expression" cperl-indent-exp t]
1083 ["Fill paragraph/comment" fill-paragraph t]
1084 "----"
1085 ["Line up a construction" cperl-lineup (cperl-use-region-p)]
1086 ["Invert if/unless/while etc" cperl-invert-if-unless t]
1087 ("Regexp"
1088 ["Beautify" cperl-beautify-regexp
1089 cperl-use-syntax-table-text-property]
1090 ["Beautify one level deep" (cperl-beautify-regexp 1)
1091 cperl-use-syntax-table-text-property]
1092 ["Beautify a group" cperl-beautify-level
1093 cperl-use-syntax-table-text-property]
1094 ["Beautify a group one level deep" (cperl-beautify-level 1)
1095 cperl-use-syntax-table-text-property]
1096 ["Contract a group" cperl-contract-level
1097 cperl-use-syntax-table-text-property]
1098 ["Contract groups" cperl-contract-levels
1099 cperl-use-syntax-table-text-property])
1100 ["Refresh \"hard\" constructions" cperl-find-pods-heres t]
1101 "----"
1102 ["Indent region" cperl-indent-region (cperl-use-region-p)]
1103 ["Comment region" cperl-comment-region (cperl-use-region-p)]
1104 ["Uncomment region" cperl-uncomment-region (cperl-use-region-p)]
1105 "----"
1106 ["Run" mode-compile (fboundp 'mode-compile)]
1107 ["Kill" mode-compile-kill (and (fboundp 'mode-compile-kill)
1108 (get-buffer "*compilation*"))]
1109 ["Next error" next-error (get-buffer "*compilation*")]
1110 ["Check syntax" cperl-check-syntax (fboundp 'mode-compile)]
1111 "----"
1112 ["Debugger" cperl-db t]
1113 "----"
1114 ("Tools"
1115 ["Imenu" imenu (fboundp 'imenu)]
1116 ["Insert spaces if needed" cperl-find-bad-style t]
1117 ["Class Hierarchy from TAGS" cperl-tags-hier-init t]
1118 ;;["Update classes" (cperl-tags-hier-init t) tags-table-list]
1119 ["CPerl pretty print (exprmntl)" cperl-ps-print
1120 (fboundp 'ps-extend-face-list)]
1121 ["Imenu on info" cperl-imenu-on-info (featurep 'imenu)]
1122 ("Tags"
1123 ;;; ["Create tags for current file" cperl-etags t]
1124 ;;; ["Add tags for current file" (cperl-etags t) t]
1125 ;;; ["Create tags for Perl files in directory" (cperl-etags nil t) t]
1126 ;;; ["Add tags for Perl files in directory" (cperl-etags t t) t]
1127 ;;; ["Create tags for Perl files in (sub)directories"
1128 ;;; (cperl-etags nil 'recursive) t]
1129 ;;; ["Add tags for Perl files in (sub)directories"
1130 ;;; (cperl-etags t 'recursive) t])
1131 ;;;; cperl-write-tags (&optional file erase recurse dir inbuffer)
1132 ["Create tags for current file" (cperl-write-tags nil t) t]
1133 ["Add tags for current file" (cperl-write-tags) t]
1134 ["Create tags for Perl files in directory"
1135 (cperl-write-tags nil t nil t) t]
1136 ["Add tags for Perl files in directory"
1137 (cperl-write-tags nil nil nil t) t]
1138 ["Create tags for Perl files in (sub)directories"
1139 (cperl-write-tags nil t t t) t]
1140 ["Add tags for Perl files in (sub)directories"
1141 (cperl-write-tags nil nil t t) t]))
1142 ("Perl docs"
1143 ["Define word at point" imenu-go-find-at-position
1144 (fboundp 'imenu-go-find-at-position)]
1145 ["Help on function" cperl-info-on-command t]
1146 ["Help on function at point" cperl-info-on-current-command t]
1147 ["Help on symbol at point" cperl-get-help t]
1148 ["Perldoc" cperl-perldoc t]
1149 ["Perldoc on word at point" cperl-perldoc-at-point t]
1150 ["View manpage of POD in this file" cperl-build-manpage t]
1151 ["Auto-help on" cperl-lazy-install
1152 (and (fboundp 'run-with-idle-timer)
1153 (not cperl-lazy-installed))]
1154 ["Auto-help off" cperl-lazy-unstall
1155 (and (fboundp 'run-with-idle-timer)
1156 cperl-lazy-installed)])
1157 ("Toggle..."
1158 ["Auto newline" cperl-toggle-auto-newline t]
1159 ["Electric parens" cperl-toggle-electric t]
1160 ["Electric keywords" cperl-toggle-abbrev t]
1161 ["Fix whitespace on indent" cperl-toggle-construct-fix t]
1162 ["Auto-help on Perl constructs" cperl-toggle-autohelp t]
1163 ["Auto fill" auto-fill-mode t])
1164 ("Indent styles..."
1165 ["CPerl" (cperl-set-style "CPerl") t]
1166 ["PerlStyle" (cperl-set-style "PerlStyle") t]
1167 ["GNU" (cperl-set-style "GNU") t]
1168 ["C++" (cperl-set-style "C++") t]
1169 ["FSF" (cperl-set-style "FSF") t]
1170 ["BSD" (cperl-set-style "BSD") t]
1171 ["Whitesmith" (cperl-set-style "Whitesmith") t]
1172 ["Current" (cperl-set-style "Current") t]
1173 ["Memorized" (cperl-set-style-back) cperl-old-style])
1174 ("Micro-docs"
1175 ["Tips" (describe-variable 'cperl-tips) t]
1176 ["Problems" (describe-variable 'cperl-problems) t]
1177 ["Speed" (describe-variable 'cperl-speed) t]
1178 ["Praise" (describe-variable 'cperl-praise) t]
1179 ["Faces" (describe-variable 'cperl-tips-faces) t]
1180 ["CPerl mode" (describe-function 'cperl-mode) t]
1181 ["CPerl version"
1182 (message "The version of master-file for this CPerl is %s-Emacs"
1183 cperl-version) t]))))
1184 (error nil))
1186 (autoload 'c-macro-expand "cmacexp"
1187 "Display the result of expanding all C macros occurring in the region.
1188 The expansion is entirely correct because it uses the C preprocessor."
1191 (defvar cperl-imenu--function-name-regexp-perl
1192 (concat
1193 "^\\("
1194 "[ \t]*\\(sub\\|package\\)[ \t\n]+\\([a-zA-Z_0-9:']+\\)[ \t]*\\(([^()]*)[ \t]*\\)?"
1195 "\\|"
1196 "=head\\([12]\\)[ \t]+\\([^\n]+\\)$"
1197 "\\)"))
1199 (defvar cperl-outline-regexp
1200 (concat cperl-imenu--function-name-regexp-perl "\\|" "\\`"))
1202 (defvar cperl-mode-syntax-table nil
1203 "Syntax table in use in CPerl mode buffers.")
1205 (defvar cperl-string-syntax-table nil
1206 "Syntax table in use in CPerl mode string-like chunks.")
1208 (if cperl-mode-syntax-table
1210 (setq cperl-mode-syntax-table (make-syntax-table))
1211 (modify-syntax-entry ?\\ "\\" cperl-mode-syntax-table)
1212 (modify-syntax-entry ?/ "." cperl-mode-syntax-table)
1213 (modify-syntax-entry ?* "." cperl-mode-syntax-table)
1214 (modify-syntax-entry ?+ "." cperl-mode-syntax-table)
1215 (modify-syntax-entry ?- "." cperl-mode-syntax-table)
1216 (modify-syntax-entry ?= "." cperl-mode-syntax-table)
1217 (modify-syntax-entry ?% "." cperl-mode-syntax-table)
1218 (modify-syntax-entry ?< "." cperl-mode-syntax-table)
1219 (modify-syntax-entry ?> "." cperl-mode-syntax-table)
1220 (modify-syntax-entry ?& "." cperl-mode-syntax-table)
1221 (modify-syntax-entry ?$ "\\" cperl-mode-syntax-table)
1222 (modify-syntax-entry ?\n ">" cperl-mode-syntax-table)
1223 (modify-syntax-entry ?# "<" cperl-mode-syntax-table)
1224 (modify-syntax-entry ?' "\"" cperl-mode-syntax-table)
1225 (modify-syntax-entry ?` "\"" cperl-mode-syntax-table)
1226 (if cperl-under-as-char
1227 (modify-syntax-entry ?_ "w" cperl-mode-syntax-table))
1228 (modify-syntax-entry ?: "_" cperl-mode-syntax-table)
1229 (modify-syntax-entry ?| "." cperl-mode-syntax-table)
1230 (setq cperl-string-syntax-table (copy-syntax-table cperl-mode-syntax-table))
1231 (modify-syntax-entry ?$ "." cperl-string-syntax-table)
1232 (modify-syntax-entry ?# "." cperl-string-syntax-table)) ; (?# comment )
1236 (defvar cperl-faces-init nil)
1237 ;; Fix for msb.el
1238 (defvar cperl-msb-fixed nil)
1239 (defvar cperl-use-major-mode 'cperl-mode)
1241 ;;;###autoload
1242 (defun cperl-mode ()
1243 "Major mode for editing Perl code.
1244 Expression and list commands understand all C brackets.
1245 Tab indents for Perl code.
1246 Paragraphs are separated by blank lines only.
1247 Delete converts tabs to spaces as it moves back.
1249 Various characters in Perl almost always come in pairs: {}, (), [],
1250 sometimes <>. When the user types the first, she gets the second as
1251 well, with optional special formatting done on {}. (Disabled by
1252 default.) You can always quote (with \\[quoted-insert]) the left
1253 \"paren\" to avoid the expansion. The processing of < is special,
1254 since most the time you mean \"less\". CPerl mode tries to guess
1255 whether you want to type pair <>, and inserts is if it
1256 appropriate. You can set `cperl-electric-parens-string' to the string that
1257 contains the parenths from the above list you want to be electrical.
1258 Electricity of parenths is controlled by `cperl-electric-parens'.
1259 You may also set `cperl-electric-parens-mark' to have electric parens
1260 look for active mark and \"embrace\" a region if possible.'
1262 CPerl mode provides expansion of the Perl control constructs:
1264 if, else, elsif, unless, while, until, continue, do,
1265 for, foreach, formy and foreachmy.
1267 and POD directives (Disabled by default, see `cperl-electric-keywords'.)
1269 The user types the keyword immediately followed by a space, which
1270 causes the construct to be expanded, and the point is positioned where
1271 she is most likely to want to be. eg. when the user types a space
1272 following \"if\" the following appears in the buffer: if () { or if ()
1273 } { } and the cursor is between the parentheses. The user can then
1274 type some boolean expression within the parens. Having done that,
1275 typing \\[cperl-linefeed] places you - appropriately indented - on a
1276 new line between the braces (if you typed \\[cperl-linefeed] in a POD
1277 directive line, then appropriate number of new lines is inserted).
1279 If CPerl decides that you want to insert \"English\" style construct like
1281 bite if angry;
1283 it will not do any expansion. See also help on variable
1284 `cperl-extra-newline-before-brace'. (Note that one can switch the
1285 help message on expansion by setting `cperl-message-electric-keyword'
1286 to nil.)
1288 \\[cperl-linefeed] is a convenience replacement for typing carriage
1289 return. It places you in the next line with proper indentation, or if
1290 you type it inside the inline block of control construct, like
1292 foreach (@lines) {print; print}
1294 and you are on a boundary of a statement inside braces, it will
1295 transform the construct into a multiline and will place you into an
1296 appropriately indented blank line. If you need a usual
1297 `newline-and-indent' behaviour, it is on \\[newline-and-indent],
1298 see documentation on `cperl-electric-linefeed'.
1300 Use \\[cperl-invert-if-unless] to change a construction of the form
1302 if (A) { B }
1304 into
1306 B if A;
1308 \\{cperl-mode-map}
1310 Setting the variable `cperl-font-lock' to t switches on font-lock-mode
1311 \(even with older Emacsen), `cperl-electric-lbrace-space' to t switches
1312 on electric space between $ and {, `cperl-electric-parens-string' is
1313 the string that contains parentheses that should be electric in CPerl
1314 \(see also `cperl-electric-parens-mark' and `cperl-electric-parens'),
1315 setting `cperl-electric-keywords' enables electric expansion of
1316 control structures in CPerl. `cperl-electric-linefeed' governs which
1317 one of two linefeed behavior is preferable. You can enable all these
1318 options simultaneously (recommended mode of use) by setting
1319 `cperl-hairy' to t. In this case you can switch separate options off
1320 by setting them to `null'. Note that one may undo the extra
1321 whitespace inserted by semis and braces in `auto-newline'-mode by
1322 consequent \\[cperl-electric-backspace].
1324 If your site has perl5 documentation in info format, you can use commands
1325 \\[cperl-info-on-current-command] and \\[cperl-info-on-command] to access it.
1326 These keys run commands `cperl-info-on-current-command' and
1327 `cperl-info-on-command', which one is which is controlled by variable
1328 `cperl-info-on-command-no-prompt' and `cperl-clobber-lisp-bindings'
1329 \(in turn affected by `cperl-hairy').
1331 Even if you have no info-format documentation, short one-liner-style
1332 help is available on \\[cperl-get-help], and one can run perldoc or
1333 man via menu.
1335 It is possible to show this help automatically after some idle time.
1336 This is regulated by variable `cperl-lazy-help-time'. Default with
1337 `cperl-hairy' (if the value of `cperl-lazy-help-time' is nil) is 5
1338 secs idle time . It is also possible to switch this on/off from the
1339 menu, or via \\[cperl-toggle-autohelp]. Requires `run-with-idle-timer'.
1341 Use \\[cperl-lineup] to vertically lineup some construction - put the
1342 beginning of the region at the start of construction, and make region
1343 span the needed amount of lines.
1345 Variables `cperl-pod-here-scan', `cperl-pod-here-fontify',
1346 `cperl-pod-face', `cperl-pod-head-face' control processing of POD and
1347 here-docs sections. With capable Emaxen results of scan are used
1348 for indentation too, otherwise they are used for highlighting only.
1350 Variables controlling indentation style:
1351 `cperl-tab-always-indent'
1352 Non-nil means TAB in CPerl mode should always reindent the current line,
1353 regardless of where in the line point is when the TAB command is used.
1354 `cperl-indent-left-aligned-comments'
1355 Non-nil means that the comment starting in leftmost column should indent.
1356 `cperl-auto-newline'
1357 Non-nil means automatically newline before and after braces,
1358 and after colons and semicolons, inserted in Perl code. The following
1359 \\[cperl-electric-backspace] will remove the inserted whitespace.
1360 Insertion after colons requires both this variable and
1361 `cperl-auto-newline-after-colon' set.
1362 `cperl-auto-newline-after-colon'
1363 Non-nil means automatically newline even after colons.
1364 Subject to `cperl-auto-newline' setting.
1365 `cperl-indent-level'
1366 Indentation of Perl statements within surrounding block.
1367 The surrounding block's indentation is the indentation
1368 of the line on which the open-brace appears.
1369 `cperl-continued-statement-offset'
1370 Extra indentation given to a substatement, such as the
1371 then-clause of an if, or body of a while, or just a statement continuation.
1372 `cperl-continued-brace-offset'
1373 Extra indentation given to a brace that starts a substatement.
1374 This is in addition to `cperl-continued-statement-offset'.
1375 `cperl-brace-offset'
1376 Extra indentation for line if it starts with an open brace.
1377 `cperl-brace-imaginary-offset'
1378 An open brace following other text is treated as if it the line started
1379 this far to the right of the actual line indentation.
1380 `cperl-label-offset'
1381 Extra indentation for line that is a label.
1382 `cperl-min-label-indent'
1383 Minimal indentation for line that is a label.
1385 Settings for K&R and BSD indentation styles are
1386 `cperl-indent-level' 5 8
1387 `cperl-continued-statement-offset' 5 8
1388 `cperl-brace-offset' -5 -8
1389 `cperl-label-offset' -5 -8
1391 CPerl knows several indentation styles, and may bulk set the
1392 corresponding variables. Use \\[cperl-set-style] to do this. Use
1393 \\[cperl-set-style-back] to restore the memorized preexisting values
1394 \(both available from menu).
1396 If `cperl-indent-level' is 0, the statement after opening brace in
1397 column 0 is indented on
1398 `cperl-brace-offset'+`cperl-continued-statement-offset'.
1400 Turning on CPerl mode calls the hooks in the variable `cperl-mode-hook'
1401 with no args.
1403 DO NOT FORGET to read micro-docs (available from `Perl' menu)
1404 or as help on variables `cperl-tips', `cperl-problems',
1405 `cperl-praise', `cperl-speed'."
1406 (interactive)
1407 (kill-all-local-variables)
1408 (use-local-map cperl-mode-map)
1409 (if (cperl-val 'cperl-electric-linefeed)
1410 (progn
1411 (local-set-key "\C-J" 'cperl-linefeed)
1412 (local-set-key "\C-C\C-J" 'newline-and-indent)))
1413 (if (and
1414 (cperl-val 'cperl-clobber-lisp-bindings)
1415 (cperl-val 'cperl-info-on-command-no-prompt))
1416 (progn
1417 ;; don't clobber the backspace binding:
1418 (cperl-define-key "\C-hf" 'cperl-info-on-current-command [(control h) f])
1419 (cperl-define-key "\C-c\C-hf" 'cperl-info-on-command
1420 [(control c) (control h) f])))
1421 (setq major-mode cperl-use-major-mode)
1422 (setq mode-name "CPerl")
1423 (if (not cperl-mode-abbrev-table)
1424 (let ((prev-a-c abbrevs-changed))
1425 (define-abbrev-table 'cperl-mode-abbrev-table '(
1426 ("if" "if" cperl-electric-keyword 0)
1427 ("elsif" "elsif" cperl-electric-keyword 0)
1428 ("while" "while" cperl-electric-keyword 0)
1429 ("until" "until" cperl-electric-keyword 0)
1430 ("unless" "unless" cperl-electric-keyword 0)
1431 ("else" "else" cperl-electric-else 0)
1432 ("continue" "continue" cperl-electric-else 0)
1433 ("for" "for" cperl-electric-keyword 0)
1434 ("foreach" "foreach" cperl-electric-keyword 0)
1435 ("formy" "formy" cperl-electric-keyword 0)
1436 ("foreachmy" "foreachmy" cperl-electric-keyword 0)
1437 ("do" "do" cperl-electric-keyword 0)
1438 ("=pod" "=pod" cperl-electric-pod 0)
1439 ("=over" "=over" cperl-electric-pod 0)
1440 ("=head1" "=head1" cperl-electric-pod 0)
1441 ("=head2" "=head2" cperl-electric-pod 0)
1442 ("pod" "pod" cperl-electric-pod 0)
1443 ("over" "over" cperl-electric-pod 0)
1444 ("head1" "head1" cperl-electric-pod 0)
1445 ("head2" "head2" cperl-electric-pod 0)))
1446 (setq abbrevs-changed prev-a-c)))
1447 (setq local-abbrev-table cperl-mode-abbrev-table)
1448 (abbrev-mode (if (cperl-val 'cperl-electric-keywords) 1 0))
1449 (set-syntax-table cperl-mode-syntax-table)
1450 (make-local-variable 'outline-regexp)
1451 ;; (setq outline-regexp imenu-example--function-name-regexp-perl)
1452 (setq outline-regexp cperl-outline-regexp)
1453 (make-local-variable 'outline-level)
1454 (setq outline-level 'cperl-outline-level)
1455 (make-local-variable 'paragraph-start)
1456 (setq paragraph-start (concat "^$\\|" page-delimiter))
1457 (make-local-variable 'paragraph-separate)
1458 (setq paragraph-separate paragraph-start)
1459 (make-local-variable 'paragraph-ignore-fill-prefix)
1460 (setq paragraph-ignore-fill-prefix t)
1461 (set (make-local-variable 'fill-paragraph-function) 'cperl-fill-paragraph)
1462 (make-local-variable 'indent-line-function)
1463 (setq indent-line-function 'cperl-indent-line)
1464 (make-local-variable 'require-final-newline)
1465 (setq require-final-newline mode-require-final-newline)
1466 (make-local-variable 'comment-start)
1467 (setq comment-start "# ")
1468 (make-local-variable 'comment-end)
1469 (setq comment-end "")
1470 (make-local-variable 'comment-column)
1471 (setq comment-column cperl-comment-column)
1472 (make-local-variable 'comment-start-skip)
1473 (setq comment-start-skip "#+ *")
1474 (make-local-variable 'defun-prompt-regexp)
1475 (setq defun-prompt-regexp "^[ \t]*sub[ \t\n]+\\([^ \t\n{(;]+\\)\\([ \t\n]*([^()]*)[ \t\n]*\\)?[ \t\n]*)")
1476 (make-local-variable 'comment-indent-function)
1477 (setq comment-indent-function 'cperl-comment-indent)
1478 (make-local-variable 'parse-sexp-ignore-comments)
1479 (setq parse-sexp-ignore-comments t)
1480 (make-local-variable 'indent-region-function)
1481 (setq indent-region-function 'cperl-indent-region)
1482 ;;(setq auto-fill-function 'cperl-do-auto-fill) ; Need to switch on and off!
1483 (make-local-variable 'imenu-create-index-function)
1484 (setq imenu-create-index-function
1485 (function cperl-imenu--create-perl-index))
1486 (make-local-variable 'imenu-sort-function)
1487 (setq imenu-sort-function nil)
1488 (make-local-variable 'vc-header-alist)
1489 (set 'vc-header-alist cperl-vc-header-alist) ; Avoid warning
1490 (make-local-variable 'font-lock-defaults)
1491 (setq font-lock-defaults
1492 (cond
1493 ((string< emacs-version "19.30")
1494 '(cperl-font-lock-keywords-2))
1495 ((string< emacs-version "19.33") ; Which one to use?
1496 '((cperl-font-lock-keywords
1497 cperl-font-lock-keywords-1
1498 cperl-font-lock-keywords-2)))
1500 '((cperl-load-font-lock-keywords
1501 cperl-load-font-lock-keywords-1
1502 cperl-load-font-lock-keywords-2)))))
1503 (make-local-variable 'cperl-syntax-state)
1504 (if cperl-use-syntax-table-text-property
1505 (progn
1506 (make-local-variable 'parse-sexp-lookup-properties)
1507 ;; Do not introduce variable if not needed, we check it!
1508 (set 'parse-sexp-lookup-properties t)
1509 ;; Fix broken font-lock:
1510 (or (boundp 'font-lock-unfontify-region-function)
1511 (set 'font-lock-unfontify-region-function
1512 'font-lock-default-unfontify-region))
1513 (make-local-variable 'font-lock-unfontify-region-function)
1514 (set 'font-lock-unfontify-region-function ; not present with old Emacs
1515 'cperl-font-lock-unfontify-region-function)
1516 (make-local-variable 'cperl-syntax-done-to)
1517 (make-local-variable 'font-lock-syntactic-keywords)
1518 (setq font-lock-syntactic-keywords
1519 (if cperl-syntaxify-by-font-lock
1520 '((cperl-fontify-syntaxically))
1521 ;; unless font-lock-syntactic-keywords, font-lock (pre-22.1)
1522 ;; used to ignore syntax-table text-properties. (t) is a hack
1523 ;; to make font-lock think that font-lock-syntactic-keywords
1524 ;; are defined.
1525 '(t)))))
1526 (make-local-variable 'cperl-old-style)
1527 (if (boundp 'normal-auto-fill-function) ; 19.33 and later
1528 (set (make-local-variable 'normal-auto-fill-function)
1529 'cperl-do-auto-fill) ; RMS has it as #'cperl-do-auto-fill ???
1530 (or (fboundp 'cperl-old-auto-fill-mode)
1531 (progn
1532 (fset 'cperl-old-auto-fill-mode (symbol-function 'auto-fill-mode))
1533 (defun auto-fill-mode (&optional arg)
1534 (interactive "P")
1535 (eval '(cperl-old-auto-fill-mode arg)) ; Avoid a warning
1536 (and auto-fill-function (memq major-mode '(perl-mode cperl-mode))
1537 (setq auto-fill-function 'cperl-do-auto-fill))))))
1538 (if (cperl-enable-font-lock)
1539 (if (cperl-val 'cperl-font-lock)
1540 (progn (or cperl-faces-init (cperl-init-faces))
1541 (font-lock-mode 1))))
1542 (and (boundp 'msb-menu-cond)
1543 (not cperl-msb-fixed)
1544 (cperl-msb-fix))
1545 (if (featurep 'easymenu)
1546 (easy-menu-add cperl-menu)) ; A NOP in Emacs.
1547 (run-mode-hooks 'cperl-mode-hook)
1548 ;; After hooks since fontification will break this
1549 (if cperl-pod-here-scan
1550 (or cperl-syntaxify-by-font-lock
1551 (progn (or cperl-faces-init (cperl-init-faces-weak))
1552 (cperl-find-pods-heres)))))
1554 ;; Fix for perldb - make default reasonable
1555 (defun cperl-db ()
1556 (interactive)
1557 (require 'gud)
1558 (perldb (read-from-minibuffer "Run perldb (like this): "
1559 (if (consp gud-perldb-history)
1560 (car gud-perldb-history)
1561 (concat "perl " ;;(file-name-nondirectory
1562 ;; I have problems
1563 ;; in OS/2
1564 ;; otherwise
1565 (buffer-file-name)))
1566 nil nil
1567 '(gud-perldb-history . 1))))
1569 (defun cperl-msb-fix ()
1570 ;; Adds perl files to msb menu, supposes that msb is already loaded
1571 (setq cperl-msb-fixed t)
1572 (let* ((l (length msb-menu-cond))
1573 (last (nth (1- l) msb-menu-cond))
1574 (precdr (nthcdr (- l 2) msb-menu-cond)) ; cdr of this is last
1575 (handle (1- (nth 1 last))))
1576 (setcdr precdr (list
1577 (list
1578 '(memq major-mode '(cperl-mode perl-mode))
1579 handle
1580 "Perl Files (%d)")
1581 last))))
1583 ;; This is used by indent-for-comment
1584 ;; to decide how much to indent a comment in CPerl code
1585 ;; based on its context. Do fallback if comment is found wrong.
1587 (defvar cperl-wrong-comment)
1588 (defvar cperl-st-cfence '(14)) ; Comment-fence
1589 (defvar cperl-st-sfence '(15)) ; String-fence
1590 (defvar cperl-st-punct '(1))
1591 (defvar cperl-st-word '(2))
1592 (defvar cperl-st-bra '(4 . ?\>))
1593 (defvar cperl-st-ket '(5 . ?\<))
1596 (defun cperl-comment-indent ()
1597 (let ((p (point)) (c (current-column)) was phony)
1598 (if (looking-at "^#") 0 ; Existing comment at bol stays there.
1599 ;; Wrong comment found
1600 (save-excursion
1601 (setq was (cperl-to-comment-or-eol)
1602 phony (eq (get-text-property (point) 'syntax-table)
1603 cperl-st-cfence))
1604 (if phony
1605 (progn
1606 (re-search-forward "#\\|$") ; Hmm, what about embedded #?
1607 (if (eq (preceding-char) ?\#)
1608 (forward-char -1))
1609 (setq was nil)))
1610 (if (= (point) p)
1611 (progn
1612 (skip-chars-backward " \t")
1613 (max (1+ (current-column)) ; Else indent at comment column
1614 comment-column))
1615 (if was nil
1616 (insert comment-start)
1617 (backward-char (length comment-start)))
1618 (setq cperl-wrong-comment t)
1619 (indent-to comment-column 1) ; Indent minimum 1
1620 c))))) ; except leave at least one space.
1622 ;;;(defun cperl-comment-indent-fallback ()
1623 ;;; "Is called if the standard comment-search procedure fails.
1624 ;;;Point is at start of real comment."
1625 ;;; (let ((c (current-column)) target cnt prevc)
1626 ;;; (if (= c comment-column) nil
1627 ;;; (setq cnt (skip-chars-backward "[ \t]"))
1628 ;;; (setq target (max (1+ (setq prevc
1629 ;;; (current-column))) ; Else indent at comment column
1630 ;;; comment-column))
1631 ;;; (if (= c comment-column) nil
1632 ;;; (delete-backward-char cnt)
1633 ;;; (while (< prevc target)
1634 ;;; (insert "\t")
1635 ;;; (setq prevc (current-column)))
1636 ;;; (if (> prevc target) (progn (delete-char -1) (setq prevc (current-column))))
1637 ;;; (while (< prevc target)
1638 ;;; (insert " ")
1639 ;;; (setq prevc (current-column)))))))
1641 (defun cperl-indent-for-comment ()
1642 "Substitute for `indent-for-comment' in CPerl."
1643 (interactive)
1644 (let (cperl-wrong-comment)
1645 (indent-for-comment)
1646 (if cperl-wrong-comment
1647 (progn (cperl-to-comment-or-eol)
1648 (forward-char (length comment-start))))))
1650 (defun cperl-comment-region (b e arg)
1651 "Comment or uncomment each line in the region in CPerl mode.
1652 See `comment-region'."
1653 (interactive "r\np")
1654 (let ((comment-start "#"))
1655 (comment-region b e arg)))
1657 (defun cperl-uncomment-region (b e arg)
1658 "Uncomment or comment each line in the region in CPerl mode.
1659 See `comment-region'."
1660 (interactive "r\np")
1661 (let ((comment-start "#"))
1662 (comment-region b e (- arg))))
1664 (defvar cperl-brace-recursing nil)
1666 (defun cperl-electric-brace (arg &optional only-before)
1667 "Insert character and correct line's indentation.
1668 If ONLY-BEFORE and `cperl-auto-newline', will insert newline before the
1669 place (even in empty line), but not after. If after \")\" and the inserted
1670 char is \"{\", insert extra newline before only if
1671 `cperl-extra-newline-before-brace'."
1672 (interactive "P")
1673 (let (insertpos
1674 (other-end (if (and cperl-electric-parens-mark
1675 (cperl-mark-active)
1676 (< (mark) (point)))
1677 (mark)
1678 nil)))
1679 (if (and other-end
1680 (not cperl-brace-recursing)
1681 (cperl-val 'cperl-electric-parens)
1682 (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point)))
1683 ;; Need to insert a matching pair
1684 (progn
1685 (save-excursion
1686 (setq insertpos (point-marker))
1687 (goto-char other-end)
1688 (setq last-command-char ?\{)
1689 (cperl-electric-lbrace arg insertpos))
1690 (forward-char 1))
1691 ;; Check whether we close something "usual" with `}'
1692 (if (and (eq last-command-char ?\})
1693 (not
1694 (condition-case nil
1695 (save-excursion
1696 (up-list (- (prefix-numeric-value arg)))
1697 ;;(cperl-after-block-p (point-min))
1698 (or (cperl-after-expr-p nil "{;)")
1699 ;; after sub, else, continue
1700 (cperl-after-block-p nil 'pre)))
1701 (error nil))))
1702 ;; Just insert the guy
1703 (self-insert-command (prefix-numeric-value arg))
1704 (if (and (not arg) ; No args, end (of empty line or auto)
1705 (eolp)
1706 (or (and (null only-before)
1707 (save-excursion
1708 (skip-chars-backward " \t")
1709 (bolp)))
1710 (and (eq last-command-char ?\{) ; Do not insert newline
1711 ;; if after ")" and `cperl-extra-newline-before-brace'
1712 ;; is nil, do not insert extra newline.
1713 (not cperl-extra-newline-before-brace)
1714 (save-excursion
1715 (skip-chars-backward " \t")
1716 (eq (preceding-char) ?\))))
1717 (if cperl-auto-newline
1718 (progn (cperl-indent-line) (newline) t) nil)))
1719 (progn
1720 (self-insert-command (prefix-numeric-value arg))
1721 (cperl-indent-line)
1722 (if cperl-auto-newline
1723 (setq insertpos (1- (point))))
1724 (if (and cperl-auto-newline (null only-before))
1725 (progn
1726 (newline)
1727 (cperl-indent-line)))
1728 (save-excursion
1729 (if insertpos (progn (goto-char insertpos)
1730 (search-forward (make-string
1731 1 last-command-char))
1732 (setq insertpos (1- (point)))))
1733 (delete-char -1))))
1734 (if insertpos
1735 (save-excursion
1736 (goto-char insertpos)
1737 (self-insert-command (prefix-numeric-value arg)))
1738 (self-insert-command (prefix-numeric-value arg)))))))
1740 (defun cperl-electric-lbrace (arg &optional end)
1741 "Insert character, correct line's indentation, correct quoting by space."
1742 (interactive "P")
1743 (let ((cperl-brace-recursing t)
1744 (cperl-auto-newline cperl-auto-newline)
1745 (other-end (or end
1746 (if (and cperl-electric-parens-mark
1747 (cperl-mark-active)
1748 (> (mark) (point)))
1749 (save-excursion
1750 (goto-char (mark))
1751 (point-marker))
1752 nil)))
1753 pos after)
1754 (and (cperl-val 'cperl-electric-lbrace-space)
1755 (eq (preceding-char) ?$)
1756 (save-excursion
1757 (skip-chars-backward "$")
1758 (looking-at "\\(\\$\\$\\)*\\$\\([^\\$]\\|$\\)"))
1759 (insert ?\ ))
1760 ;; Check whether we are in comment
1761 (if (and
1762 (save-excursion
1763 (beginning-of-line)
1764 (not (looking-at "[ \t]*#")))
1765 (cperl-after-expr-p nil "{;)"))
1767 (setq cperl-auto-newline nil))
1768 (cperl-electric-brace arg)
1769 (and (cperl-val 'cperl-electric-parens)
1770 (eq last-command-char ?{)
1771 (memq last-command-char
1772 (append cperl-electric-parens-string nil))
1773 (or (if other-end (goto-char (marker-position other-end)))
1775 (setq last-command-char ?} pos (point))
1776 (progn (cperl-electric-brace arg t)
1777 (goto-char pos)))))
1779 (defun cperl-electric-paren (arg)
1780 "Insert an opening parenthesis or a matching pair of parentheses.
1781 See `cperl-electric-parens'."
1782 (interactive "P")
1783 (let ((beg (save-excursion (beginning-of-line) (point)))
1784 (other-end (if (and cperl-electric-parens-mark
1785 (cperl-mark-active)
1786 (> (mark) (point)))
1787 (save-excursion
1788 (goto-char (mark))
1789 (point-marker))
1790 nil)))
1791 (if (and (cperl-val 'cperl-electric-parens)
1792 (memq last-command-char
1793 (append cperl-electric-parens-string nil))
1794 (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
1795 ;;(not (save-excursion (search-backward "#" beg t)))
1796 (if (eq last-command-char ?<)
1797 (progn
1798 (and abbrev-mode ; later it is too late, may be after `for'
1799 (expand-abbrev))
1800 (cperl-after-expr-p nil "{;(,:="))
1802 (progn
1803 (self-insert-command (prefix-numeric-value arg))
1804 (if other-end (goto-char (marker-position other-end)))
1805 (insert (make-string
1806 (prefix-numeric-value arg)
1807 (cdr (assoc last-command-char '((?{ .?})
1808 (?[ . ?])
1809 (?( . ?))
1810 (?< . ?>))))))
1811 (forward-char (- (prefix-numeric-value arg))))
1812 (self-insert-command (prefix-numeric-value arg)))))
1814 (defun cperl-electric-rparen (arg)
1815 "Insert a matching pair of parentheses if marking is active.
1816 If not, or if we are not at the end of marking range, would self-insert.
1817 Affected by `cperl-electric-parens'."
1818 (interactive "P")
1819 (let ((beg (save-excursion (beginning-of-line) (point)))
1820 (other-end (if (and cperl-electric-parens-mark
1821 (cperl-val 'cperl-electric-parens)
1822 (memq last-command-char
1823 (append cperl-electric-parens-string nil))
1824 (cperl-mark-active)
1825 (< (mark) (point)))
1826 (mark)
1827 nil))
1829 (if (and other-end
1830 (cperl-val 'cperl-electric-parens)
1831 (memq last-command-char '( ?\) ?\] ?\} ?\> ))
1832 (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
1833 ;;(not (save-excursion (search-backward "#" beg t)))
1835 (progn
1836 (self-insert-command (prefix-numeric-value arg))
1837 (setq p (point))
1838 (if other-end (goto-char other-end))
1839 (insert (make-string
1840 (prefix-numeric-value arg)
1841 (cdr (assoc last-command-char '((?\} . ?\{)
1842 (?\] . ?\[)
1843 (?\) . ?\()
1844 (?\> . ?\<))))))
1845 (goto-char (1+ p)))
1846 (self-insert-command (prefix-numeric-value arg)))))
1848 (defun cperl-electric-keyword ()
1849 "Insert a construction appropriate after a keyword.
1850 Help message may be switched off by setting `cperl-message-electric-keyword'
1851 to nil."
1852 (let ((beg (save-excursion (beginning-of-line) (point)))
1853 (dollar (and (eq last-command-char ?$)
1854 (eq this-command 'self-insert-command)))
1855 (delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
1856 (memq this-command '(self-insert-command newline))))
1857 my do)
1858 (and (save-excursion
1859 (condition-case nil
1860 (progn
1861 (backward-sexp 1)
1862 (setq do (looking-at "do\\>")))
1863 (error nil))
1864 (cperl-after-expr-p nil "{;:"))
1865 (save-excursion
1866 (not
1867 (re-search-backward
1868 "[#\"'`]\\|\\<q\\(\\|[wqxr]\\)\\>"
1869 beg t)))
1870 (save-excursion (or (not (re-search-backward "^=" nil t))
1872 (looking-at "=cut")
1873 (and cperl-use-syntax-table-text-property
1874 (not (eq (get-text-property (point)
1875 'syntax-type)
1876 'pod))))))
1877 (save-excursion (forward-sexp -1)
1878 (not (memq (following-char) (append "$@%&*" nil))))
1879 (progn
1880 (and (eq (preceding-char) ?y)
1881 (progn ; "foreachmy"
1882 (forward-char -2)
1883 (insert " ")
1884 (forward-char 2)
1885 (setq my t dollar t
1886 delete
1887 (memq this-command '(self-insert-command newline)))))
1888 (and dollar (insert " $"))
1889 (cperl-indent-line)
1890 ;;(insert " () {\n}")
1891 (cond
1892 (cperl-extra-newline-before-brace
1893 (insert (if do "\n" " ()\n"))
1894 (insert "{")
1895 (cperl-indent-line)
1896 (insert "\n")
1897 (cperl-indent-line)
1898 (insert "\n}")
1899 (and do (insert " while ();")))
1901 (insert (if do " {\n} while ();" " () {\n}"))))
1902 (or (looking-at "[ \t]\\|$") (insert " "))
1903 (cperl-indent-line)
1904 (if dollar (progn (search-backward "$")
1905 (if my
1906 (forward-char 1)
1907 (delete-char 1)))
1908 (search-backward ")")
1909 (if (eq last-command-char ?\()
1910 (progn ; Avoid "if (())"
1911 (delete-backward-char 1)
1912 (delete-backward-char -1))))
1913 (if delete
1914 (cperl-putback-char cperl-del-back-ch))
1915 (if cperl-message-electric-keyword
1916 (message "Precede char by C-q to avoid expansion"))))))
1918 (defun cperl-ensure-newlines (n &optional pos)
1919 "Make sure there are N newlines after the point."
1920 (or pos (setq pos (point)))
1921 (if (looking-at "\n")
1922 (forward-char 1)
1923 (insert "\n"))
1924 (if (> n 1)
1925 (cperl-ensure-newlines (1- n) pos)
1926 (goto-char pos)))
1928 (defun cperl-electric-pod ()
1929 "Insert a POD chunk appropriate after a =POD directive."
1930 (let ((delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
1931 (memq this-command '(self-insert-command newline))))
1932 head1 notlast name p really-delete over)
1933 (and (save-excursion
1934 (forward-word -1)
1935 (and
1936 (eq (preceding-char) ?=)
1937 (progn
1938 (setq head1 (looking-at "head1\\>[ \t]*$"))
1939 (setq over (and (looking-at "over\\>[ \t]*$")
1940 (not (looking-at "over[ \t]*\n\n\n*=item\\>"))))
1941 (forward-char -1)
1942 (bolp))
1944 (get-text-property (point) 'in-pod)
1945 (cperl-after-expr-p nil "{;:")
1946 (and (re-search-backward
1947 ;; "\\(\\`\n?\\|\n\n\\)=\\sw+"
1948 "\\(\\`\n?\\|^\n\\)=\\sw+"
1949 (point-min) t)
1950 (not (or
1951 (looking-at "=cut")
1952 (and cperl-use-syntax-table-text-property
1953 (not (eq (get-text-property (point) 'syntax-type)
1954 'pod)))))))))
1955 (progn
1956 (save-excursion
1957 (setq notlast (re-search-forward "^\n=" nil t)))
1958 (or notlast
1959 (progn
1960 (insert "\n\n=cut")
1961 (cperl-ensure-newlines 2)
1962 (forward-word -2)
1963 (if (and head1
1964 (not
1965 (save-excursion
1966 (forward-char -1)
1967 (re-search-backward "\\(\\`\n?\\|\n\n\\)=head1\\>"
1968 nil t)))) ; Only one
1969 (progn
1970 (forward-word 1)
1971 (setq name (file-name-sans-extension
1972 (file-name-nondirectory (buffer-file-name)))
1973 p (point))
1974 (insert " NAME\n\n" name
1975 " - \n\n=head1 SYNOPSIS\n\n\n\n"
1976 "=head1 DESCRIPTION")
1977 (cperl-ensure-newlines 4)
1978 (goto-char p)
1979 (forward-word 2)
1980 (end-of-line)
1981 (setq really-delete t))
1982 (forward-word 1))))
1983 (if over
1984 (progn
1985 (setq p (point))
1986 (insert "\n\n=item \n\n\n\n"
1987 "=back")
1988 (cperl-ensure-newlines 2)
1989 (goto-char p)
1990 (forward-word 1)
1991 (end-of-line)
1992 (setq really-delete t)))
1993 (if (and delete really-delete)
1994 (cperl-putback-char cperl-del-back-ch))))))
1996 (defun cperl-electric-else ()
1997 "Insert a construction appropriate after a keyword.
1998 Help message may be switched off by setting `cperl-message-electric-keyword'
1999 to nil."
2000 (let ((beg (save-excursion (beginning-of-line) (point))))
2001 (and (save-excursion
2002 (backward-sexp 1)
2003 (cperl-after-expr-p nil "{;:"))
2004 (save-excursion
2005 (not
2006 (re-search-backward
2007 "[#\"'`]\\|\\<q\\(\\|[wqxr]\\)\\>"
2008 beg t)))
2009 (save-excursion (or (not (re-search-backward "^=" nil t))
2010 (looking-at "=cut")
2011 (and cperl-use-syntax-table-text-property
2012 (not (eq (get-text-property (point)
2013 'syntax-type)
2014 'pod)))))
2015 (progn
2016 (cperl-indent-line)
2017 ;;(insert " {\n\n}")
2018 (cond
2019 (cperl-extra-newline-before-brace
2020 (insert "\n")
2021 (insert "{")
2022 (cperl-indent-line)
2023 (insert "\n\n}"))
2025 (insert " {\n\n}")))
2026 (or (looking-at "[ \t]\\|$") (insert " "))
2027 (cperl-indent-line)
2028 (forward-line -1)
2029 (cperl-indent-line)
2030 (cperl-putback-char cperl-del-back-ch)
2031 (setq this-command 'cperl-electric-else)
2032 (if cperl-message-electric-keyword
2033 (message "Precede char by C-q to avoid expansion"))))))
2035 (defun cperl-linefeed ()
2036 "Go to end of line, open a new line and indent appropriately.
2037 If in POD, insert appropriate lines."
2038 (interactive)
2039 (let ((beg (save-excursion (beginning-of-line) (point)))
2040 (end (save-excursion (end-of-line) (point)))
2041 (pos (point)) start over cut res)
2042 (if (and ; Check if we need to split:
2043 ; i.e., on a boundary and inside "{...}"
2044 (save-excursion (cperl-to-comment-or-eol)
2045 (>= (point) pos)) ; Not in a comment
2046 (or (save-excursion
2047 (skip-chars-backward " \t" beg)
2048 (forward-char -1)
2049 (looking-at "[;{]")) ; After { or ; + spaces
2050 (looking-at "[ \t]*}") ; Before }
2051 (re-search-forward "\\=[ \t]*;" end t)) ; Before spaces + ;
2052 (save-excursion
2053 (and
2054 (eq (car (parse-partial-sexp pos end -1)) -1)
2055 ; Leave the level of parens
2056 (looking-at "[,; \t]*\\($\\|#\\)") ; Comma to allow anon subr
2057 ; Are at end
2058 (cperl-after-block-p (point-min))
2059 (progn
2060 (backward-sexp 1)
2061 (setq start (point-marker))
2062 (<= start pos))))) ; Redundant? Are after the
2063 ; start of parens group.
2064 (progn
2065 (skip-chars-backward " \t")
2066 (or (memq (preceding-char) (append ";{" nil))
2067 (insert ";"))
2068 (insert "\n")
2069 (forward-line -1)
2070 (cperl-indent-line)
2071 (goto-char start)
2072 (or (looking-at "{[ \t]*$") ; If there is a statement
2073 ; before, move it to separate line
2074 (progn
2075 (forward-char 1)
2076 (insert "\n")
2077 (cperl-indent-line)))
2078 (forward-line 1) ; We are on the target line
2079 (cperl-indent-line)
2080 (beginning-of-line)
2081 (or (looking-at "[ \t]*}[,; \t]*$") ; If there is a statement
2082 ; after, move it to separate line
2083 (progn
2084 (end-of-line)
2085 (search-backward "}" beg)
2086 (skip-chars-backward " \t")
2087 (or (memq (preceding-char) (append ";{" nil))
2088 (insert ";"))
2089 (insert "\n")
2090 (cperl-indent-line)
2091 (forward-line -1)))
2092 (forward-line -1) ; We are on the line before target
2093 (end-of-line)
2094 (newline-and-indent))
2095 (end-of-line) ; else - no splitting
2096 (cond
2097 ((and (looking-at "\n[ \t]*{$")
2098 (save-excursion
2099 (skip-chars-backward " \t")
2100 (eq (preceding-char) ?\)))) ; Probably if () {} group
2101 ; with an extra newline.
2102 (forward-line 2)
2103 (cperl-indent-line))
2104 ((save-excursion ; In POD header
2105 (forward-paragraph -1)
2106 ;; (re-search-backward "\\(\\`\n?\\|\n\n\\)=head1\\b")
2107 ;; We are after \n now, so look for the rest
2108 (if (looking-at "\\(\\`\n?\\|\n\\)=\\sw+")
2109 (progn
2110 (setq cut (looking-at "\\(\\`\n?\\|\n\\)=cut\\>"))
2111 (setq over (looking-at "\\(\\`\n?\\|\n\\)=over\\>"))
2112 t)))
2113 (if (and over
2114 (progn
2115 (forward-paragraph -1)
2116 (forward-word 1)
2117 (setq pos (point))
2118 (setq cut (buffer-substring (point)
2119 (save-excursion
2120 (end-of-line)
2121 (point))))
2122 (delete-char (- (save-excursion (end-of-line) (point))
2123 (point)))
2124 (setq res (expand-abbrev))
2125 (save-excursion
2126 (goto-char pos)
2127 (insert cut))
2128 res))
2130 (cperl-ensure-newlines (if cut 2 4))
2131 (forward-line 2)))
2132 ((get-text-property (point) 'in-pod) ; In POD section
2133 (cperl-ensure-newlines 4)
2134 (forward-line 2))
2135 ((looking-at "\n[ \t]*$") ; Next line is empty - use it.
2136 (forward-line 1)
2137 (cperl-indent-line))
2139 (newline-and-indent))))))
2141 (defun cperl-electric-semi (arg)
2142 "Insert character and correct line's indentation."
2143 (interactive "P")
2144 (if cperl-auto-newline
2145 (cperl-electric-terminator arg)
2146 (self-insert-command (prefix-numeric-value arg))
2147 (if cperl-autoindent-on-semi
2148 (cperl-indent-line))))
2150 (defun cperl-electric-terminator (arg)
2151 "Insert character and correct line's indentation."
2152 (interactive "P")
2153 (let ((end (point))
2154 (auto (and cperl-auto-newline
2155 (or (not (eq last-command-char ?:))
2156 cperl-auto-newline-after-colon)))
2157 insertpos)
2158 (if (and ;;(not arg)
2159 (eolp)
2160 (not (save-excursion
2161 (beginning-of-line)
2162 (skip-chars-forward " \t")
2164 ;; Ignore in comment lines
2165 (= (following-char) ?#)
2166 ;; Colon is special only after a label
2167 ;; So quickly rule out most other uses of colon
2168 ;; and do no indentation for them.
2169 (and (eq last-command-char ?:)
2170 (save-excursion
2171 (forward-word 1)
2172 (skip-chars-forward " \t")
2173 (and (< (point) end)
2174 (progn (goto-char (- end 1))
2175 (not (looking-at ":"))))))
2176 (progn
2177 (beginning-of-defun)
2178 (let ((pps (parse-partial-sexp (point) end)))
2179 (or (nth 3 pps) (nth 4 pps) (nth 5 pps))))))))
2180 (progn
2181 (self-insert-command (prefix-numeric-value arg))
2182 ;;(forward-char -1)
2183 (if auto (setq insertpos (point-marker)))
2184 ;;(forward-char 1)
2185 (cperl-indent-line)
2186 (if auto
2187 (progn
2188 (newline)
2189 (cperl-indent-line)))
2190 (save-excursion
2191 (if insertpos (goto-char (1- (marker-position insertpos)))
2192 (forward-char -1))
2193 (delete-char 1))))
2194 (if insertpos
2195 (save-excursion
2196 (goto-char insertpos)
2197 (self-insert-command (prefix-numeric-value arg)))
2198 (self-insert-command (prefix-numeric-value arg)))))
2200 (defun cperl-electric-backspace (arg)
2201 "Backspace, or remove the whitespace around the point inserted by an electric
2202 key. Will untabify if `cperl-electric-backspace-untabify' is non-nil."
2203 (interactive "p")
2204 (if (and cperl-auto-newline
2205 (memq last-command '(cperl-electric-semi
2206 cperl-electric-terminator
2207 cperl-electric-lbrace))
2208 (memq (preceding-char) '(?\ ?\t ?\n)))
2209 (let (p)
2210 (if (eq last-command 'cperl-electric-lbrace)
2211 (skip-chars-forward " \t\n"))
2212 (setq p (point))
2213 (skip-chars-backward " \t\n")
2214 (delete-region (point) p))
2215 (and (eq last-command 'cperl-electric-else)
2216 ;; We are removing the whitespace *inside* cperl-electric-else
2217 (setq this-command 'cperl-electric-else-really))
2218 (if (and cperl-auto-newline
2219 (eq last-command 'cperl-electric-else-really)
2220 (memq (preceding-char) '(?\ ?\t ?\n)))
2221 (let (p)
2222 (skip-chars-forward " \t\n")
2223 (setq p (point))
2224 (skip-chars-backward " \t\n")
2225 (delete-region (point) p))
2226 (if cperl-electric-backspace-untabify
2227 (backward-delete-char-untabify arg)
2228 (delete-backward-char arg)))))
2230 (put 'cperl-electric-backspace 'delete-selection 'supersede)
2232 (defun cperl-inside-parens-p ()
2233 (condition-case ()
2234 (save-excursion
2235 (save-restriction
2236 (narrow-to-region (point)
2237 (progn (beginning-of-defun) (point)))
2238 (goto-char (point-max))
2239 (= (char-after (or (scan-lists (point) -1 1) (point-min))) ?\()))
2240 (error nil)))
2242 (defun cperl-indent-command (&optional whole-exp)
2243 "Indent current line as Perl code, or in some cases insert a tab character.
2244 If `cperl-tab-always-indent' is non-nil (the default), always indent current
2245 line. Otherwise, indent the current line only if point is at the left margin
2246 or in the line's indentation; otherwise insert a tab.
2248 A numeric argument, regardless of its value,
2249 means indent rigidly all the lines of the expression starting after point
2250 so that this line becomes properly indented.
2251 The relative indentation among the lines of the expression are preserved."
2252 (interactive "P")
2253 (cperl-update-syntaxification (point) (point))
2254 (if whole-exp
2255 ;; If arg, always indent this line as Perl
2256 ;; and shift remaining lines of expression the same amount.
2257 (let ((shift-amt (cperl-indent-line))
2258 beg end)
2259 (save-excursion
2260 (if cperl-tab-always-indent
2261 (beginning-of-line))
2262 (setq beg (point))
2263 (forward-sexp 1)
2264 (setq end (point))
2265 (goto-char beg)
2266 (forward-line 1)
2267 (setq beg (point)))
2268 (if (and shift-amt (> end beg))
2269 (indent-code-rigidly beg end shift-amt "#")))
2270 (if (and (not cperl-tab-always-indent)
2271 (save-excursion
2272 (skip-chars-backward " \t")
2273 (not (bolp))))
2274 (insert-tab)
2275 (cperl-indent-line))))
2277 (defun cperl-indent-line (&optional parse-data)
2278 "Indent current line as Perl code.
2279 Return the amount the indentation changed by."
2280 (let ((case-fold-search nil)
2281 (pos (- (point-max) (point)))
2282 indent i beg shift-amt)
2283 (setq indent (cperl-calculate-indent parse-data)
2284 i indent)
2285 (beginning-of-line)
2286 (setq beg (point))
2287 (cond ((or (eq indent nil) (eq indent t))
2288 (setq indent (current-indentation) i nil))
2289 ;;((eq indent t) ; Never?
2290 ;; (setq indent (cperl-calculate-indent-within-comment)))
2291 ;;((looking-at "[ \t]*#")
2292 ;; (setq indent 0))
2294 (skip-chars-forward " \t")
2295 (if (listp indent) (setq indent (car indent)))
2296 (cond ((looking-at "[A-Za-z_][A-Za-z_0-9]*:[^:]")
2297 (and (> indent 0)
2298 (setq indent (max cperl-min-label-indent
2299 (+ indent cperl-label-offset)))))
2300 ((= (following-char) ?})
2301 (setq indent (- indent cperl-indent-level)))
2302 ((memq (following-char) '(?\) ?\])) ; To line up with opening paren.
2303 (setq indent (+ indent cperl-close-paren-offset)))
2304 ((= (following-char) ?{)
2305 (setq indent (+ indent cperl-brace-offset))))))
2306 (skip-chars-forward " \t")
2307 (setq shift-amt (and i (- indent (current-column))))
2308 (if (or (not shift-amt)
2309 (zerop shift-amt))
2310 (if (> (- (point-max) pos) (point))
2311 (goto-char (- (point-max) pos)))
2312 (delete-region beg (point))
2313 (indent-to indent)
2314 ;; If initial point was within line's indentation,
2315 ;; position after the indentation. Else stay at same point in text.
2316 (if (> (- (point-max) pos) (point))
2317 (goto-char (- (point-max) pos))))
2318 shift-amt))
2320 (defun cperl-after-label ()
2321 ;; Returns true if the point is after label. Does not do save-excursion.
2322 (and (eq (preceding-char) ?:)
2323 (memq (char-syntax (char-after (- (point) 2)))
2324 '(?w ?_))
2325 (progn
2326 (backward-sexp)
2327 (looking-at "[a-zA-Z_][a-zA-Z0-9_]*:[^:]"))))
2329 (defun cperl-get-state (&optional parse-start start-state)
2330 ;; returns list (START STATE DEPTH PRESTART),
2331 ;; START is a good place to start parsing, or equal to
2332 ;; PARSE-START if preset,
2333 ;; STATE is what is returned by `parse-partial-sexp'.
2334 ;; DEPTH is true is we are immediately after end of block
2335 ;; which contains START.
2336 ;; PRESTART is the position basing on which START was found.
2337 (save-excursion
2338 (let ((start-point (point)) depth state start prestart)
2339 (if (and parse-start
2340 (<= parse-start start-point))
2341 (goto-char parse-start)
2342 (beginning-of-defun)
2343 (setq start-state nil))
2344 (setq prestart (point))
2345 (if start-state nil
2346 ;; Try to go out, if sub is not on the outermost level
2347 (while (< (point) start-point)
2348 (setq start (point) parse-start start depth nil
2349 state (parse-partial-sexp start start-point -1))
2350 (if (> (car state) -1) nil
2351 ;; The current line could start like }}}, so the indentation
2352 ;; corresponds to a different level than what we reached
2353 (setq depth t)
2354 (beginning-of-line 2))) ; Go to the next line.
2355 (if start (goto-char start))) ; Not at the start of file
2356 (setq start (point))
2357 (or state (setq state (parse-partial-sexp start start-point -1 nil start-state)))
2358 (list start state depth prestart))))
2360 (defun cperl-block-p () ; Do not C-M-q ! One string contains ";" !
2361 ;; Positions is before ?\{. Checks whether it starts a block.
2362 ;; No save-excursion!
2363 (cperl-backward-to-noncomment (point-min))
2364 (or (memq (preceding-char) (append ";){}$@&%\C-@" nil)) ; Or label! \C-@ at bobp
2365 ; Label may be mixed up with `$blah :'
2366 (save-excursion (cperl-after-label))
2367 (and (memq (char-syntax (preceding-char)) '(?w ?_))
2368 (progn
2369 (backward-sexp)
2370 ;; Need take into account `bless', `return', `tr',...
2371 (or (and (looking-at "[a-zA-Z0-9_:]+[ \t\n\f]*[{#]") ; Method call syntax
2372 (not (looking-at "\\(bless\\|return\\|q[wqrx]?\\|tr\\|[smy]\\)\\>")))
2373 (progn
2374 (skip-chars-backward " \t\n\f")
2375 (and (memq (char-syntax (preceding-char)) '(?w ?_))
2376 (progn
2377 (backward-sexp)
2378 (looking-at
2379 "sub[ \t]+[a-zA-Z0-9_:]+[ \t\n\f]*\\(([^()]*)[ \t\n\f]*\\)?[#{]")))))))))
2381 (defvar cperl-look-for-prop '((pod in-pod) (here-doc-delim here-doc-group)))
2383 (defun cperl-calculate-indent (&optional parse-data) ; was parse-start
2384 "Return appropriate indentation for current line as Perl code.
2385 In usual case returns an integer: the column to indent to.
2386 Returns nil if line starts inside a string, t if in a comment.
2388 Will not correct the indentation for labels, but will correct it for braces
2389 and closing parentheses and brackets."
2390 (cperl-update-syntaxification (point) (point))
2391 (save-excursion
2392 (if (or
2393 (and (memq (get-text-property (point) 'syntax-type)
2394 '(pod here-doc here-doc-delim format))
2395 (not (get-text-property (point) 'indentable)))
2396 ;; before start of POD - whitespace found since do not have 'pod!
2397 (and (looking-at "[ \t]*\n=")
2398 (error "Spaces before POD section!"))
2399 (and (not cperl-indent-left-aligned-comments)
2400 (looking-at "^#")))
2402 (beginning-of-line)
2403 (let ((indent-point (point))
2404 (char-after (save-excursion
2405 (skip-chars-forward " \t")
2406 (following-char)))
2407 (in-pod (get-text-property (point) 'in-pod))
2408 (pre-indent-point (point))
2409 p prop look-prop is-block delim)
2410 (cond
2411 (in-pod
2412 ;; In the verbatim part, probably code example. What to do???
2415 (save-excursion
2416 ;; Not in POD
2417 (cperl-backward-to-noncomment nil)
2418 (setq p (max (point-min) (1- (point)))
2419 prop (get-text-property p 'syntax-type)
2420 look-prop (or (nth 1 (assoc prop cperl-look-for-prop))
2421 'syntax-type))
2422 (if (memq prop '(pod here-doc format here-doc-delim))
2423 (progn
2424 (goto-char (or (previous-single-property-change p look-prop)
2425 (point-min)))
2426 (beginning-of-line)
2427 (setq pre-indent-point (point)))))))
2428 (goto-char pre-indent-point)
2429 (let* ((case-fold-search nil)
2430 (s-s (cperl-get-state (car parse-data) (nth 1 parse-data)))
2431 (start (or (nth 2 parse-data)
2432 (nth 0 s-s)))
2433 (state (nth 1 s-s))
2434 (containing-sexp (car (cdr state)))
2435 old-indent)
2436 (if (and
2437 ;;containing-sexp ;; We are buggy at toplevel :-(
2438 parse-data)
2439 (progn
2440 (setcar parse-data pre-indent-point)
2441 (setcar (cdr parse-data) state)
2442 (or (nth 2 parse-data)
2443 (setcar (cddr parse-data) start))
2444 ;; Before this point: end of statement
2445 (setq old-indent (nth 3 parse-data))))
2446 (cond ((get-text-property (point) 'indentable)
2447 ;; indent to just after the surrounding open,
2448 ;; skip blanks if we do not close the expression.
2449 (goto-char (1+ (previous-single-property-change (point) 'indentable)))
2450 (or (memq char-after (append ")]}" nil))
2451 (looking-at "[ \t]*\\(#\\|$\\)")
2452 (skip-chars-forward " \t"))
2453 (current-column))
2454 ((or (nth 3 state) (nth 4 state))
2455 ;; return nil or t if should not change this line
2456 (nth 4 state))
2457 ;; XXXX Do we need to special-case this?
2458 ((null containing-sexp)
2459 ;; Line is at top level. May be data or function definition,
2460 ;; or may be function argument declaration.
2461 ;; Indent like the previous top level line
2462 ;; unless that ends in a closeparen without semicolon,
2463 ;; in which case this line is the first argument decl.
2464 (skip-chars-forward " \t")
2465 (+ (save-excursion
2466 (goto-char start)
2467 (- (current-indentation)
2468 (if (nth 2 s-s) cperl-indent-level 0)))
2469 (if (= char-after ?{) cperl-continued-brace-offset 0)
2470 (progn
2471 (cperl-backward-to-noncomment (or old-indent (point-min)))
2472 ;; Look at previous line that's at column 0
2473 ;; to determine whether we are in top-level decls
2474 ;; or function's arg decls. Set basic-indent accordingly.
2475 ;; Now add a little if this is a continuation line.
2476 (if (or (bobp)
2477 (eq (point) old-indent) ; old-indent was at comment
2478 (eq (preceding-char) ?\;)
2479 ;; Had ?\) too
2480 (and (eq (preceding-char) ?\})
2481 (cperl-after-block-and-statement-beg
2482 (point-min))) ; Was start - too close
2483 (memq char-after (append ")]}" nil))
2484 (and (eq (preceding-char) ?\:) ; label
2485 (progn
2486 (forward-sexp -1)
2487 (skip-chars-backward " \t")
2488 (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*[ \t]*:")))
2489 (get-text-property (point) 'first-format-line))
2490 (progn
2491 (if (and parse-data
2492 (not (eq char-after ?\C-j)))
2493 (setcdr (cddr parse-data)
2494 (list pre-indent-point)))
2496 cperl-continued-statement-offset))))
2497 ((not
2498 (or (setq is-block
2499 (and (setq delim (= (char-after containing-sexp) ?{))
2500 (save-excursion ; Is it a hash?
2501 (goto-char containing-sexp)
2502 (cperl-block-p))))
2503 cperl-indent-parens-as-block))
2504 ;; group is an expression, not a block:
2505 ;; indent to just after the surrounding open parens,
2506 ;; skip blanks if we do not close the expression.
2507 (goto-char (1+ containing-sexp))
2508 (or (memq char-after
2509 (append (if delim "}" ")]}") nil))
2510 (looking-at "[ \t]*\\(#\\|$\\)")
2511 (skip-chars-forward " \t"))
2512 (+ (current-column)
2513 (if (and delim
2514 (eq char-after ?\}))
2515 ;; Correct indentation of trailing ?\}
2516 (+ cperl-indent-level cperl-close-paren-offset)
2517 0)))
2518 ;;; ((and (/= (char-after containing-sexp) ?{)
2519 ;;; (not cperl-indent-parens-as-block))
2520 ;;; ;; line is expression, not statement:
2521 ;;; ;; indent to just after the surrounding open,
2522 ;;; ;; skip blanks if we do not close the expression.
2523 ;;; (goto-char (1+ containing-sexp))
2524 ;;; (or (memq char-after (append ")]}" nil))
2525 ;;; (looking-at "[ \t]*\\(#\\|$\\)")
2526 ;;; (skip-chars-forward " \t"))
2527 ;;; (current-column))
2528 ;;; ((progn
2529 ;;; ;; Containing-expr starts with \{. Check whether it is a hash.
2530 ;;; (goto-char containing-sexp)
2531 ;;; (and (not (cperl-block-p))
2532 ;;; (not cperl-indent-parens-as-block)))
2533 ;;; (goto-char (1+ containing-sexp))
2534 ;;; (or (eq char-after ?\})
2535 ;;; (looking-at "[ \t]*\\(#\\|$\\)")
2536 ;;; (skip-chars-forward " \t"))
2537 ;;; (+ (current-column) ; Correct indentation of trailing ?\}
2538 ;;; (if (eq char-after ?\}) (+ cperl-indent-level
2539 ;;; cperl-close-paren-offset)
2540 ;;; 0)))
2542 ;; Statement level. Is it a continuation or a new statement?
2543 ;; Find previous non-comment character.
2544 (goto-char pre-indent-point)
2545 (cperl-backward-to-noncomment containing-sexp)
2546 ;; Back up over label lines, since they don't
2547 ;; affect whether our line is a continuation.
2548 ;; (Had \, too)
2549 (while ;;(or (eq (preceding-char) ?\,)
2550 (and (eq (preceding-char) ?:)
2551 (or ;;(eq (char-after (- (point) 2)) ?\') ; ????
2552 (memq (char-syntax (char-after (- (point) 2)))
2553 '(?w ?_))))
2555 (if (eq (preceding-char) ?\,)
2556 ;; Will go to beginning of line, essentially.
2557 ;; Will ignore embedded sexpr XXXX.
2558 (cperl-backward-to-start-of-continued-exp containing-sexp))
2559 (beginning-of-line)
2560 (cperl-backward-to-noncomment containing-sexp))
2561 ;; Now we get the answer.
2562 (if (not (or (eq (1- (point)) containing-sexp)
2563 (memq (preceding-char)
2564 (append (if is-block " ;{" " ,;{") '(nil)))
2565 (and (eq (preceding-char) ?\})
2566 (cperl-after-block-and-statement-beg
2567 containing-sexp))
2568 (get-text-property (point) 'first-format-line)))
2569 ;; This line is continuation of preceding line's statement;
2570 ;; indent `cperl-continued-statement-offset' more than the
2571 ;; previous line of the statement.
2573 ;; There might be a label on this line, just
2574 ;; consider it bad style and ignore it.
2575 (progn
2576 (cperl-backward-to-start-of-continued-exp containing-sexp)
2577 (+ (if (memq char-after (append "}])" nil))
2578 0 ; Closing parenth
2579 cperl-continued-statement-offset)
2580 (if (or is-block
2581 (not delim)
2582 (not (eq char-after ?\})))
2584 ;; Now it is a hash reference
2585 (+ cperl-indent-level cperl-close-paren-offset))
2586 (if (looking-at "\\w+[ \t]*:")
2587 (if (> (current-indentation) cperl-min-label-indent)
2588 (- (current-indentation) cperl-label-offset)
2589 ;; Do not move `parse-data', this should
2590 ;; be quick anyway (this comment comes
2591 ;; from different location):
2592 (cperl-calculate-indent))
2593 (current-column))
2594 (if (eq char-after ?\{)
2595 cperl-continued-brace-offset 0)))
2596 ;; This line starts a new statement.
2597 ;; Position following last unclosed open.
2598 (goto-char containing-sexp)
2599 ;; Is line first statement after an open-brace?
2601 ;; If no, find that first statement and indent like
2602 ;; it. If the first statement begins with label, do
2603 ;; not believe when the indentation of the label is too
2604 ;; small.
2605 (save-excursion
2606 (forward-char 1)
2607 (setq old-indent (current-indentation))
2608 (let ((colon-line-end 0))
2609 (while
2610 (progn (skip-chars-forward " \t\n")
2611 (looking-at "#\\|[a-zA-Z0-9_$]*:[^:]\\|=[a-zA-Z]"))
2612 ;; Skip over comments and labels following openbrace.
2613 (cond ((= (following-char) ?\#)
2614 (forward-line 1))
2615 ((= (following-char) ?\=)
2616 (goto-char
2617 (or (next-single-property-change (point) 'in-pod)
2618 (point-max)))) ; do not loop if no syntaxification
2619 ;; label:
2621 (save-excursion (end-of-line)
2622 (setq colon-line-end (point)))
2623 (search-forward ":"))))
2624 ;; The first following code counts
2625 ;; if it is before the line we want to indent.
2626 (and (< (point) indent-point)
2627 (if (> colon-line-end (point)) ; After label
2628 (if (> (current-indentation)
2629 cperl-min-label-indent)
2630 (- (current-indentation) cperl-label-offset)
2631 ;; Do not believe: `max' is involved
2632 (+ old-indent cperl-indent-level))
2633 (current-column)))))
2634 ;; If no previous statement,
2635 ;; indent it relative to line brace is on.
2636 ;; For open brace in column zero, don't let statement
2637 ;; start there too. If cperl-indent-level is zero,
2638 ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
2639 ;; For open-braces not the first thing in a line,
2640 ;; add in cperl-brace-imaginary-offset.
2642 ;; If first thing on a line: ?????
2643 (+ (if (and (bolp) (zerop cperl-indent-level))
2644 (+ cperl-brace-offset cperl-continued-statement-offset)
2645 cperl-indent-level)
2646 (if (or is-block
2647 (not delim)
2648 (not (eq char-after ?\})))
2650 ;; Now it is a hash reference
2651 (+ cperl-indent-level cperl-close-paren-offset))
2652 ;; Move back over whitespace before the openbrace.
2653 ;; If openbrace is not first nonwhite thing on the line,
2654 ;; add the cperl-brace-imaginary-offset.
2655 (progn (skip-chars-backward " \t")
2656 (if (bolp) 0 cperl-brace-imaginary-offset))
2657 ;; If the openbrace is preceded by a parenthesized exp,
2658 ;; move to the beginning of that;
2659 ;; possibly a different line
2660 (progn
2661 (if (eq (preceding-char) ?\))
2662 (forward-sexp -1))
2663 ;; In the case it starts a subroutine, indent with
2664 ;; respect to `sub', not with respect to the
2665 ;; first thing on the line, say in the case of
2666 ;; anonymous sub in a hash.
2668 (skip-chars-backward " \t")
2669 (if (and (eq (preceding-char) ?b)
2670 (progn
2671 (forward-sexp -1)
2672 (looking-at "sub\\>"))
2673 (setq old-indent
2674 (nth 1
2675 (parse-partial-sexp
2676 (save-excursion (beginning-of-line) (point))
2677 (point)))))
2678 (progn (goto-char (1+ old-indent))
2679 (skip-chars-forward " \t")
2680 (current-column))
2681 ;; Get initial indentation of the line we are on.
2682 ;; If line starts with label, calculate label indentation
2683 (if (save-excursion
2684 (beginning-of-line)
2685 (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
2686 (if (> (current-indentation) cperl-min-label-indent)
2687 (- (current-indentation) cperl-label-offset)
2688 ;; Do not move `parse-data', this should
2689 ;; be quick anyway:
2690 (cperl-calculate-indent))
2691 (current-indentation))))))))))))))
2693 ;; (defvar cperl-indent-alist
2694 ;; '((string nil)
2695 ;; (comment nil)
2696 ;; (toplevel 0)
2697 ;; (toplevel-after-parenth 2)
2698 ;; (toplevel-continued 2)
2699 ;; (expression 1))
2700 ;; "Alist of indentation rules for CPerl mode.
2701 ;; The values mean:
2702 ;; nil: do not indent;
2703 ;; number: add this amount of indentation.
2705 ;; Not finished, not used.")
2707 ;; (defun cperl-where-am-i (&optional parse-start start-state)
2708 ;; ;; Unfinished
2709 ;; "Return a list of lists ((TYPE POS)...) of good points before the point.
2710 ;; ;; POS may be nil if it is hard to find, say, when TYPE is `string' or `comment'.
2712 ;; ;; Not finished, not used."
2713 ;; (save-excursion
2714 ;; (let* ((start-point (point))
2715 ;; (s-s (cperl-get-state))
2716 ;; (start (nth 0 s-s))
2717 ;; (state (nth 1 s-s))
2718 ;; (prestart (nth 3 s-s))
2719 ;; (containing-sexp (car (cdr state)))
2720 ;; (case-fold-search nil)
2721 ;; (res (list (list 'parse-start start) (list 'parse-prestart prestart))))
2722 ;; (cond ((nth 3 state) ; In string
2723 ;; (setq res (cons (list 'string nil (nth 3 state)) res))) ; What started string
2724 ;; ((nth 4 state) ; In comment
2725 ;; (setq res (cons '(comment) res)))
2726 ;; ((null containing-sexp)
2727 ;; ;; Line is at top level.
2728 ;; ;; Indent like the previous top level line
2729 ;; ;; unless that ends in a closeparen without semicolon,
2730 ;; ;; in which case this line is the first argument decl.
2731 ;; (cperl-backward-to-noncomment (or parse-start (point-min)))
2732 ;; ;;(skip-chars-backward " \t\f\n")
2733 ;; (cond
2734 ;; ((or (bobp)
2735 ;; (memq (preceding-char) (append ";}" nil)))
2736 ;; (setq res (cons (list 'toplevel start) res)))
2737 ;; ((eq (preceding-char) ?\) )
2738 ;; (setq res (cons (list 'toplevel-after-parenth start) res)))
2739 ;; (t
2740 ;; (setq res (cons (list 'toplevel-continued start) res)))))
2741 ;; ((/= (char-after containing-sexp) ?{)
2742 ;; ;; line is expression, not statement:
2743 ;; ;; indent to just after the surrounding open.
2744 ;; ;; skip blanks if we do not close the expression.
2745 ;; (setq res (cons (list 'expression-blanks
2746 ;; (progn
2747 ;; (goto-char (1+ containing-sexp))
2748 ;; (or (looking-at "[ \t]*\\(#\\|$\\)")
2749 ;; (skip-chars-forward " \t"))
2750 ;; (point)))
2751 ;; (cons (list 'expression containing-sexp) res))))
2752 ;; ((progn
2753 ;; ;; Containing-expr starts with \{. Check whether it is a hash.
2754 ;; (goto-char containing-sexp)
2755 ;; (not (cperl-block-p)))
2756 ;; (setq res (cons (list 'expression-blanks
2757 ;; (progn
2758 ;; (goto-char (1+ containing-sexp))
2759 ;; (or (looking-at "[ \t]*\\(#\\|$\\)")
2760 ;; (skip-chars-forward " \t"))
2761 ;; (point)))
2762 ;; (cons (list 'expression containing-sexp) res))))
2763 ;; (t
2764 ;; ;; Statement level.
2765 ;; (setq res (cons (list 'in-block containing-sexp) res))
2766 ;; ;; Is it a continuation or a new statement?
2767 ;; ;; Find previous non-comment character.
2768 ;; (cperl-backward-to-noncomment containing-sexp)
2769 ;; ;; Back up over label lines, since they don't
2770 ;; ;; affect whether our line is a continuation.
2771 ;; ;; Back up comma-delimited lines too ?????
2772 ;; (while (or (eq (preceding-char) ?\,)
2773 ;; (save-excursion (cperl-after-label)))
2774 ;; (if (eq (preceding-char) ?\,)
2775 ;; ;; Will go to beginning of line, essentially
2776 ;; ;; Will ignore embedded sexpr XXXX.
2777 ;; (cperl-backward-to-start-of-continued-exp containing-sexp))
2778 ;; (beginning-of-line)
2779 ;; (cperl-backward-to-noncomment containing-sexp))
2780 ;; ;; Now we get the answer.
2781 ;; (if (not (memq (preceding-char) (append ";}{" '(nil)))) ; Was ?\,
2782 ;; ;; This line is continuation of preceding line's statement.
2783 ;; (list (list 'statement-continued containing-sexp))
2784 ;; ;; This line starts a new statement.
2785 ;; ;; Position following last unclosed open.
2786 ;; (goto-char containing-sexp)
2787 ;; ;; Is line first statement after an open-brace?
2788 ;; (or
2789 ;; ;; If no, find that first statement and indent like
2790 ;; ;; it. If the first statement begins with label, do
2791 ;; ;; not believe when the indentation of the label is too
2792 ;; ;; small.
2793 ;; (save-excursion
2794 ;; (forward-char 1)
2795 ;; (let ((colon-line-end 0))
2796 ;; (while (progn (skip-chars-forward " \t\n" start-point)
2797 ;; (and (< (point) start-point)
2798 ;; (looking-at
2799 ;; "#\\|[a-zA-Z_][a-zA-Z0-9_]*:[^:]")))
2800 ;; ;; Skip over comments and labels following openbrace.
2801 ;; (cond ((= (following-char) ?\#)
2802 ;; ;;(forward-line 1)
2803 ;; (end-of-line))
2804 ;; ;; label:
2805 ;; (t
2806 ;; (save-excursion (end-of-line)
2807 ;; (setq colon-line-end (point)))
2808 ;; (search-forward ":"))))
2809 ;; ;; Now at the point, after label, or at start
2810 ;; ;; of first statement in the block.
2811 ;; (and (< (point) start-point)
2812 ;; (if (> colon-line-end (point))
2813 ;; ;; Before statement after label
2814 ;; (if (> (current-indentation)
2815 ;; cperl-min-label-indent)
2816 ;; (list (list 'label-in-block (point)))
2817 ;; ;; Do not believe: `max' is involved
2818 ;; (list
2819 ;; (list 'label-in-block-min-indent (point))))
2820 ;; ;; Before statement
2821 ;; (list 'statement-in-block (point))))))
2822 ;; ;; If no previous statement,
2823 ;; ;; indent it relative to line brace is on.
2824 ;; ;; For open brace in column zero, don't let statement
2825 ;; ;; start there too. If cperl-indent-level is zero,
2826 ;; ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
2827 ;; ;; For open-braces not the first thing in a line,
2828 ;; ;; add in cperl-brace-imaginary-offset.
2830 ;; ;; If first thing on a line: ?????
2831 ;; (+ (if (and (bolp) (zerop cperl-indent-level))
2832 ;; (+ cperl-brace-offset cperl-continued-statement-offset)
2833 ;; cperl-indent-level)
2834 ;; ;; Move back over whitespace before the openbrace.
2835 ;; ;; If openbrace is not first nonwhite thing on the line,
2836 ;; ;; add the cperl-brace-imaginary-offset.
2837 ;; (progn (skip-chars-backward " \t")
2838 ;; (if (bolp) 0 cperl-brace-imaginary-offset))
2839 ;; ;; If the openbrace is preceded by a parenthesized exp,
2840 ;; ;; move to the beginning of that;
2841 ;; ;; possibly a different line
2842 ;; (progn
2843 ;; (if (eq (preceding-char) ?\))
2844 ;; (forward-sexp -1))
2845 ;; ;; Get initial indentation of the line we are on.
2846 ;; ;; If line starts with label, calculate label indentation
2847 ;; (if (save-excursion
2848 ;; (beginning-of-line)
2849 ;; (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
2850 ;; (if (> (current-indentation) cperl-min-label-indent)
2851 ;; (- (current-indentation) cperl-label-offset)
2852 ;; (cperl-calculate-indent))
2853 ;; (current-indentation))))))))
2854 ;; res)))
2856 (defun cperl-calculate-indent-within-comment ()
2857 "Return the indentation amount for line, assuming that
2858 the current line is to be regarded as part of a block comment."
2859 (let (end star-start)
2860 (save-excursion
2861 (beginning-of-line)
2862 (skip-chars-forward " \t")
2863 (setq end (point))
2864 (and (= (following-char) ?#)
2865 (forward-line -1)
2866 (cperl-to-comment-or-eol)
2867 (setq end (point)))
2868 (goto-char end)
2869 (current-column))))
2872 (defun cperl-to-comment-or-eol ()
2873 "Go to position before comment on the current line, or to end of line.
2874 Returns true if comment is found."
2875 (let (state stop-in cpoint (lim (progn (end-of-line) (point))))
2876 (beginning-of-line)
2877 (if (or
2878 (eq (get-text-property (point) 'syntax-type) 'pod)
2879 (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t))
2880 (if (eq (preceding-char) ?\#) (progn (backward-char 1) t))
2881 ;; Else
2882 (while (not stop-in)
2883 (setq state (parse-partial-sexp (point) lim nil nil nil t))
2884 ; stop at comment
2885 ;; If fails (beginning-of-line inside sexp), then contains not-comment
2886 (if (nth 4 state) ; After `#';
2887 ; (nth 2 state) can be
2888 ; beginning of m,s,qq and so
2889 ; on
2890 (if (nth 2 state)
2891 (progn
2892 (setq cpoint (point))
2893 (goto-char (nth 2 state))
2894 (cond
2895 ((looking-at "\\(s\\|tr\\)\\>")
2896 (or (re-search-forward
2897 "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*"
2898 lim 'move)
2899 (setq stop-in t)))
2900 ((looking-at "\\(m\\|q\\([qxwr]\\)?\\)\\>")
2901 (or (re-search-forward
2902 "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#"
2903 lim 'move)
2904 (setq stop-in t)))
2905 (t ; It was fair comment
2906 (setq stop-in t) ; Finish
2907 (goto-char (1- cpoint)))))
2908 (setq stop-in t) ; Finish
2909 (forward-char -1))
2910 (setq stop-in t))) ; Finish
2911 (nth 4 state))))
2913 (defsubst cperl-1- (p)
2914 (max (point-min) (1- p)))
2916 (defsubst cperl-1+ (p)
2917 (min (point-max) (1+ p)))
2919 (defsubst cperl-modify-syntax-type (at how)
2920 (if (< at (point-max))
2921 (progn
2922 (put-text-property at (1+ at) 'syntax-table how)
2923 (put-text-property at (1+ at) 'rear-nonsticky t))))
2925 (defun cperl-protect-defun-start (s e)
2926 ;; C code looks for "^\\s(" to skip comment backward in "hard" situations
2927 (save-excursion
2928 (goto-char s)
2929 (while (re-search-forward "^\\s(" e 'to-end)
2930 (put-text-property (1- (point)) (point) 'syntax-table cperl-st-punct))))
2932 (defun cperl-commentify (bb e string &optional noface)
2933 (if cperl-use-syntax-table-text-property
2934 (if (eq noface 'n) ; Only immediate
2936 ;; We suppose that e is _after_ the end of construction, as after eol.
2937 (setq string (if string cperl-st-sfence cperl-st-cfence))
2938 (if (> bb (- e 2))
2939 ;; one-char string/comment?!
2940 (cperl-modify-syntax-type bb cperl-st-punct)
2941 (cperl-modify-syntax-type bb string)
2942 (cperl-modify-syntax-type (1- e) string))
2943 (if (and (eq string cperl-st-sfence) (> (- e 2) bb))
2944 (put-text-property (1+ bb) (1- e)
2945 'syntax-table cperl-string-syntax-table))
2946 (cperl-protect-defun-start bb e))
2947 ;; Fontify
2948 (or noface
2949 (not cperl-pod-here-fontify)
2950 (put-text-property bb e 'face (if string 'font-lock-string-face
2951 'font-lock-comment-face)))))
2953 (defvar cperl-starters '(( ?\( . ?\) )
2954 ( ?\[ . ?\] )
2955 ( ?\{ . ?\} )
2956 ( ?\< . ?\> )))
2958 (defun cperl-forward-re (lim end is-2arg set-st st-l err-l argument
2959 &optional ostart oend)
2960 ;; Works *before* syntax recognition is done
2961 ;; May modify syntax-type text property if the situation is too hard
2962 (let (b starter ender st i i2 go-forward reset-st)
2963 (skip-chars-forward " \t")
2964 ;; ender means matching-char matcher.
2965 (setq b (point)
2966 starter (if (eobp) 0 (char-after b))
2967 ender (cdr (assoc starter cperl-starters)))
2968 ;; What if starter == ?\\ ????
2969 (if set-st
2970 (if (car st-l)
2971 (setq st (car st-l))
2972 (setcar st-l (make-syntax-table))
2973 (setq i 0 st (car st-l))
2974 (while (< i 256)
2975 (modify-syntax-entry i "." st)
2976 (setq i (1+ i)))
2977 (modify-syntax-entry ?\\ "\\" st)))
2978 (setq set-st t)
2979 ;; Whether we have an intermediate point
2980 (setq i nil)
2981 ;; Prepare the syntax table:
2982 (and set-st
2983 (if (not ender) ; m/blah/, s/x//, s/x/y/
2984 (modify-syntax-entry starter "$" st)
2985 (modify-syntax-entry starter (concat "(" (list ender)) st)
2986 (modify-syntax-entry ender (concat ")" (list starter)) st)))
2987 (condition-case bb
2988 (progn
2989 ;; We use `$' syntax class to find matching stuff, but $$
2990 ;; is recognized the same as $, so we need to check this manually.
2991 (if (and (eq starter (char-after (cperl-1+ b)))
2992 (not ender))
2993 ;; $ has TeXish matching rules, so $$ equiv $...
2994 (forward-char 2)
2995 (setq reset-st (syntax-table))
2996 (set-syntax-table st)
2997 (forward-sexp 1)
2998 (if (<= (point) (1+ b))
2999 (error "Unfinished regular expression"))
3000 (set-syntax-table reset-st)
3001 (setq reset-st nil)
3002 ;; Now the problem is with m;blah;;
3003 (and (not ender)
3004 (eq (preceding-char)
3005 (char-after (- (point) 2)))
3006 (save-excursion
3007 (forward-char -2)
3008 (= 0 (% (skip-chars-backward "\\\\") 2)))
3009 (forward-char -1)))
3010 ;; Now we are after the first part.
3011 (and is-2arg ; Have trailing part
3012 (not ender)
3013 (eq (following-char) starter) ; Empty trailing part
3014 (progn
3015 (or (eq (char-syntax (following-char)) ?.)
3016 ;; Make trailing letter into punctuation
3017 (cperl-modify-syntax-type (point) cperl-st-punct))
3018 (setq is-2arg nil go-forward t))) ; Ignore the tail
3019 (if is-2arg ; Not number => have second part
3020 (progn
3021 (setq i (point) i2 i)
3022 (if ender
3023 (if (memq (following-char) '(?\ ?\t ?\n ?\f))
3024 (progn
3025 (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
3026 (goto-char (match-end 0))
3027 (skip-chars-forward " \t\n\f"))
3028 (setq i2 (point))))
3029 (forward-char -1))
3030 (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
3031 (if ender (modify-syntax-entry ender "." st))
3032 (setq set-st nil)
3033 (setq ender (cperl-forward-re lim end nil t st-l err-l
3034 argument starter ender)
3035 ender (nth 2 ender)))))
3036 (error (goto-char lim)
3037 (setq set-st nil)
3038 (if reset-st
3039 (set-syntax-table reset-st))
3040 (or end
3041 (message
3042 "End of `%s%s%c ... %c' string/RE not found: %s"
3043 argument
3044 (if ostart (format "%c ... %c" ostart (or oend ostart)) "")
3045 starter (or ender starter) bb)
3046 (or (car err-l) (setcar err-l b)))))
3047 (if set-st
3048 (progn
3049 (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
3050 (if ender (modify-syntax-entry ender "." st))))
3051 ;; i: have 2 args, after end of the first arg
3052 ;; i2: start of the second arg, if any (before delim iff `ender').
3053 ;; ender: the last arg bounded by parens-like chars, the second one of them
3054 ;; starter: the starting delimiter of the first arg
3055 ;; go-forward: has 2 args, and the second part is empty
3056 (list i i2 ender starter go-forward)))
3058 (defvar font-lock-string-face)
3059 ;;(defvar font-lock-reference-face)
3060 (defvar font-lock-constant-face)
3061 (defsubst cperl-postpone-fontification (b e type val &optional now)
3062 ;; Do after syntactic fontification?
3063 (if cperl-syntaxify-by-font-lock
3064 (or now (put-text-property b e 'cperl-postpone (cons type val)))
3065 (put-text-property b e type val)))
3067 ;;; Here is how the global structures (those which cannot be
3068 ;;; recognized locally) are marked:
3069 ;; a) PODs:
3070 ;; Start-to-end is marked `in-pod' ==> t
3071 ;; Each non-literal part is marked `syntax-type' ==> `pod'
3072 ;; Each literal part is marked `syntax-type' ==> `in-pod'
3073 ;; b) HEREs:
3074 ;; Start-to-end is marked `here-doc-group' ==> t
3075 ;; The body is marked `syntax-type' ==> `here-doc'
3076 ;; The delimiter is marked `syntax-type' ==> `here-doc-delim'
3077 ;; c) FORMATs:
3078 ;; First line (to =) marked `first-format-line' ==> t
3079 ;; After-this--to-end is marked `syntax-type' ==> `format'
3080 ;; d) 'Q'uoted string:
3081 ;; part between markers inclusive is marked `syntax-type' ==> `string'
3082 ;; part between `q' and the first marker is marked `syntax-type' ==> `prestring'
3084 (defun cperl-unwind-to-safe (before &optional end)
3085 ;; if BEFORE, go to the previous start-of-line on each step of unwinding
3086 (let ((pos (point)) opos)
3087 (setq opos pos)
3088 (while (and pos (get-text-property pos 'syntax-type))
3089 (setq pos (previous-single-property-change pos 'syntax-type))
3090 (if pos
3091 (if before
3092 (progn
3093 (goto-char (cperl-1- pos))
3094 (beginning-of-line)
3095 (setq pos (point)))
3096 (goto-char (setq pos (cperl-1- pos))))
3097 ;; Up to the start
3098 (goto-char (point-min))))
3099 ;; Skip empty lines
3100 (and (looking-at "\n*=")
3101 (/= 0 (skip-chars-backward "\n"))
3102 (forward-char))
3103 (setq pos (point))
3104 (if end
3105 ;; Do the same for end, going small steps
3106 (progn
3107 (while (and end (get-text-property end 'syntax-type))
3108 (setq pos end
3109 end (next-single-property-change end 'syntax-type)))
3110 (or end pos)))))
3112 (defvar cperl-nonoverridable-face)
3113 (defvar font-lock-function-name-face)
3114 (defvar font-lock-comment-face)
3116 (defun cperl-find-pods-heres (&optional min max non-inter end ignore-max)
3117 "Scans the buffer for hard-to-parse Perl constructions.
3118 If `cperl-pod-here-fontify' is not-nil after evaluation, will fontify
3119 the sections using `cperl-pod-head-face', `cperl-pod-face',
3120 `cperl-here-face'."
3121 (interactive)
3122 (or min (setq min (point-min)
3123 cperl-syntax-state nil
3124 cperl-syntax-done-to min))
3125 (or max (setq max (point-max)))
3126 (let* ((cperl-pod-here-fontify (eval cperl-pod-here-fontify)) go tmpend
3127 face head-face here-face b e bb tag qtag b1 e1 argument i c tail tb
3128 is-REx is-x-REx REx-comment-start REx-comment-end was-comment i2
3129 (case-fold-search nil) (inhibit-read-only t) (buffer-undo-list t)
3130 (modified (buffer-modified-p))
3131 (after-change-functions nil)
3132 (use-syntax-state (and cperl-syntax-state
3133 (>= min (car cperl-syntax-state))))
3134 (state-point (if use-syntax-state
3135 (car cperl-syntax-state)
3136 (point-min)))
3137 (state (if use-syntax-state
3138 (cdr cperl-syntax-state)))
3139 ;; (st-l '(nil)) (err-l '(nil)) ; Would overwrite - propagates from a function call to a function call!
3140 (st-l (list nil)) (err-l (list nil))
3141 ;; Somehow font-lock may be not loaded yet...
3142 (font-lock-string-face (if (boundp 'font-lock-string-face)
3143 font-lock-string-face
3144 'font-lock-string-face))
3145 (font-lock-constant-face (if (boundp 'font-lock-constant-face)
3146 font-lock-constant-face
3147 'font-lock-constant-face))
3148 (font-lock-function-name-face
3149 (if (boundp 'font-lock-function-name-face)
3150 font-lock-function-name-face
3151 'font-lock-function-name-face))
3152 (font-lock-comment-face
3153 (if (boundp 'font-lock-comment-face)
3154 font-lock-comment-face
3155 'font-lock-comment-face))
3156 (cperl-nonoverridable-face
3157 (if (boundp 'cperl-nonoverridable-face)
3158 cperl-nonoverridable-face
3159 'cperl-nonoverridable-face))
3160 (stop-point (if ignore-max
3161 (point-max)
3162 max))
3163 (search
3164 (concat
3165 "\\(\\`\n?\\|^\n\\)="
3166 "\\|"
3167 ;; One extra () before this:
3168 "<<"
3169 "\\(" ; 1 + 1
3170 ;; First variant "BLAH" or just ``.
3171 "[ \t]*" ; Yes, whitespace is allowed!
3172 "\\([\"'`]\\)" ; 2 + 1 = 3
3173 "\\([^\"'`\n]*\\)" ; 3 + 1
3174 "\\3"
3175 "\\|"
3176 ;; Second variant: Identifier or \ID (same as 'ID') or empty
3177 "\\\\?\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)" ; 4 + 1, 5 + 1
3178 ;; Do not have <<= or << 30 or <<30 or << $blah.
3179 ;; "\\([^= \t0-9$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)" ; 6 + 1
3180 "\\(\\)" ; To preserve count of pars :-( 6 + 1
3181 "\\)"
3182 "\\|"
3183 ;; 1+6 extra () before this:
3184 "^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
3185 (if cperl-use-syntax-table-text-property
3186 (concat
3187 "\\|"
3188 ;; 1+6+2=9 extra () before this:
3189 "\\<\\(q[wxqr]?\\|[msy]\\|tr\\)\\>"
3190 "\\|"
3191 ;; 1+6+2+1=10 extra () before this:
3192 "\\([?/<]\\)" ; /blah/ or ?blah? or <file*glob>
3193 "\\|"
3194 ;; 1+6+2+1+1=11 extra () before this:
3195 "\\<sub\\>[ \t]*\\([a-zA-Z_:'0-9]+[ \t]*\\)?\\(([^()]*)\\)"
3196 "\\|"
3197 ;; 1+6+2+1+1+2=13 extra () before this:
3198 "\\$\\(['{]\\)"
3199 "\\|"
3200 ;; 1+6+2+1+1+2+1=14 extra () before this:
3201 "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'"
3202 ;; 1+6+2+1+1+2+1+1=15 extra () before this:
3203 "\\|"
3204 "__\\(END\\|DATA\\)__"
3205 ;; 1+6+2+1+1+2+1+1+1=16 extra () before this:
3206 "\\|"
3207 "\\\\\\(['`\"($]\\)")
3208 ""))))
3209 (unwind-protect
3210 (progn
3211 (save-excursion
3212 (or non-inter
3213 (message "Scanning for \"hard\" Perl constructions..."))
3214 (and cperl-pod-here-fontify
3215 ;; We had evals here, do not know why...
3216 (setq face cperl-pod-face
3217 head-face cperl-pod-head-face
3218 here-face cperl-here-face))
3219 (remove-text-properties min max
3220 '(syntax-type t in-pod t syntax-table t
3221 cperl-postpone t
3222 syntax-subtype t
3223 rear-nonsticky t
3224 here-doc-group t
3225 first-format-line t
3226 indentable t))
3227 ;; Need to remove face as well...
3228 (goto-char min)
3229 (and (eq system-type 'emx)
3230 (looking-at "extproc[ \t]") ; Analogue of #!
3231 (cperl-commentify min
3232 (save-excursion (end-of-line) (point))
3233 nil))
3234 (while (and
3235 (< (point) max)
3236 (re-search-forward search max t))
3237 (setq tmpend nil) ; Valid for most cases
3238 (cond
3239 ((match-beginning 1) ; POD section
3240 ;; "\\(\\`\n?\\|^\n\\)="
3241 (if (looking-at "cut\\>")
3242 (if ignore-max
3243 nil ; Doing a chunk only
3244 (message "=cut is not preceded by a POD section")
3245 (or (car err-l) (setcar err-l (point))))
3246 (beginning-of-line)
3248 (setq b (point)
3249 bb b
3250 tb (match-beginning 0)
3251 b1 nil) ; error condition
3252 ;; We do not search to max, since we may be called from
3253 ;; some hook of fontification, and max is random
3254 (or (re-search-forward "^\n=cut\\>" stop-point 'toend)
3255 (progn
3256 (goto-char b)
3257 (if (re-search-forward "\n=cut\\>" stop-point 'toend)
3258 (progn
3259 (message "=cut is not preceded by an empty line")
3260 (setq b1 t)
3261 (or (car err-l) (setcar err-l b))))))
3262 (beginning-of-line 2) ; An empty line after =cut is not POD!
3263 (setq e (point))
3264 (and (> e max)
3265 (progn
3266 (remove-text-properties
3267 max e '(syntax-type t in-pod t syntax-table t
3268 cperl-postpone t
3269 syntax-subtype t
3270 here-doc-group t
3271 rear-nonsticky t
3272 first-format-line t
3273 indentable t))
3274 (setq tmpend tb)))
3275 (put-text-property b e 'in-pod t)
3276 (put-text-property b e 'syntax-type 'in-pod)
3277 (goto-char b)
3278 (while (re-search-forward "\n\n[ \t]" e t)
3279 ;; We start 'pod 1 char earlier to include the preceding line
3280 (beginning-of-line)
3281 (put-text-property (cperl-1- b) (point) 'syntax-type 'pod)
3282 (cperl-put-do-not-fontify b (point) t)
3283 ;; mark the non-literal parts as PODs
3284 (if cperl-pod-here-fontify
3285 (cperl-postpone-fontification b (point) 'face face t))
3286 (re-search-forward "\n\n[^ \t\f\n]" e 'toend)
3287 (beginning-of-line)
3288 (setq b (point)))
3289 (put-text-property (cperl-1- (point)) e 'syntax-type 'pod)
3290 (cperl-put-do-not-fontify (point) e t)
3291 (if cperl-pod-here-fontify
3292 (progn
3293 ;; mark the non-literal parts as PODs
3294 (cperl-postpone-fontification (point) e 'face face t)
3295 (goto-char bb)
3296 (if (looking-at
3297 "=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
3298 ;; mark the headers
3299 (cperl-postpone-fontification
3300 (match-beginning 1) (match-end 1)
3301 'face head-face))
3302 (while (re-search-forward
3303 ;; One paragraph
3304 "^\n=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
3305 e 'toend)
3306 ;; mark the headers
3307 (cperl-postpone-fontification
3308 (match-beginning 1) (match-end 1)
3309 'face head-face))))
3310 (cperl-commentify bb e nil)
3311 (goto-char e)
3312 (or (eq e (point-max))
3313 (forward-char -1)))) ; Prepare for immediate POD start.
3314 ;; Here document
3315 ;; We do only one here-per-line
3316 ;; ;; One extra () before this:
3317 ;;"<<"
3318 ;; "\\(" ; 1 + 1
3319 ;; ;; First variant "BLAH" or just ``.
3320 ;; "[ \t]*" ; Yes, whitespace is allowed!
3321 ;; "\\([\"'`]\\)" ; 2 + 1
3322 ;; "\\([^\"'`\n]*\\)" ; 3 + 1
3323 ;; "\\3"
3324 ;; "\\|"
3325 ;; ;; Second variant: Identifier or \ID or empty
3326 ;; "\\\\?\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)" ; 4 + 1, 5 + 1
3327 ;; ;; Do not have <<= or << 30 or <<30 or << $blah.
3328 ;; ;; "\\([^= \t0-9$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)" ; 6 + 1
3329 ;; "\\(\\)" ; To preserve count of pars :-( 6 + 1
3330 ;; "\\)"
3331 ((match-beginning 2) ; 1 + 1
3332 ;; Abort in comment:
3333 (setq b (point))
3334 (setq state (parse-partial-sexp state-point b nil nil state)
3335 state-point b
3336 tb (match-beginning 0)
3337 i (or (nth 3 state) (nth 4 state)))
3338 (if i
3339 (setq c t)
3340 (setq c (and
3341 (match-beginning 5)
3342 (not (match-beginning 6)) ; Empty
3343 (looking-at
3344 "[ \t]*[=0-9$@%&(]"))))
3345 (if c ; Not here-doc
3346 nil ; Skip it.
3347 (if (match-beginning 5) ;4 + 1
3348 (setq b1 (match-beginning 5) ; 4 + 1
3349 e1 (match-end 5)) ; 4 + 1
3350 (setq b1 (match-beginning 4) ; 3 + 1
3351 e1 (match-end 4))) ; 3 + 1
3352 (setq tag (buffer-substring b1 e1)
3353 qtag (regexp-quote tag))
3354 (cond (cperl-pod-here-fontify
3355 ;; Highlight the starting delimiter
3356 (cperl-postpone-fontification b1 e1 'face font-lock-constant-face)
3357 (cperl-put-do-not-fontify b1 e1 t)))
3358 (forward-line)
3359 (setq b (point))
3360 ;; We do not search to max, since we may be called from
3361 ;; some hook of fontification, and max is random
3362 (or (and (re-search-forward (concat "^" qtag "$")
3363 stop-point 'toend)
3364 (eq (following-char) ?\n))
3365 (progn ; Pretend we matched at the end
3366 (goto-char (point-max))
3367 (re-search-forward "\\'")
3368 (message "End of here-document `%s' not found." tag)
3369 (or (car err-l) (setcar err-l b))))
3370 (if cperl-pod-here-fontify
3371 (progn
3372 ;; Highlight the ending delimiter
3373 (cperl-postpone-fontification (match-beginning 0) (match-end 0)
3374 'face font-lock-constant-face)
3375 (cperl-put-do-not-fontify b (match-end 0) t)
3376 ;; Highlight the HERE-DOC
3377 (cperl-postpone-fontification b (match-beginning 0)
3378 'face here-face)))
3379 (setq e1 (cperl-1+ (match-end 0)))
3380 (put-text-property b (match-beginning 0)
3381 'syntax-type 'here-doc)
3382 (put-text-property (match-beginning 0) e1
3383 'syntax-type 'here-doc-delim)
3384 (put-text-property b e1
3385 'here-doc-group t)
3386 (cperl-commentify b e1 nil)
3387 (cperl-put-do-not-fontify b (match-end 0) t)
3388 (if (> e1 max)
3389 (setq tmpend tb))))
3390 ;; format
3391 ((match-beginning 8)
3392 ;; 1+6=7 extra () before this:
3393 ;;"^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
3394 (setq b (point)
3395 name (if (match-beginning 8) ; 7 + 1
3396 (buffer-substring (match-beginning 8) ; 7 + 1
3397 (match-end 8)) ; 7 + 1
3399 tb (match-beginning 0))
3400 (setq argument nil)
3401 (put-text-property (save-excursion
3402 (beginning-of-line)
3403 (point))
3404 b 'first-format-line 't)
3405 (if cperl-pod-here-fontify
3406 (while (and (eq (forward-line) 0)
3407 (not (looking-at "^[.;]$")))
3408 (cond
3409 ((looking-at "^#")) ; Skip comments
3410 ((and argument ; Skip argument multi-lines
3411 (looking-at "^[ \t]*{"))
3412 (forward-sexp 1)
3413 (setq argument nil))
3414 (argument ; Skip argument lines
3415 (setq argument nil))
3416 (t ; Format line
3417 (setq b1 (point))
3418 (setq argument (looking-at "^[^\n]*[@^]"))
3419 (end-of-line)
3420 ;; Highlight the format line
3421 (cperl-postpone-fontification b1 (point)
3422 'face font-lock-string-face)
3423 (cperl-commentify b1 (point) nil)
3424 (cperl-put-do-not-fontify b1 (point) t))))
3425 ;; We do not search to max, since we may be called from
3426 ;; some hook of fontification, and max is random
3427 (re-search-forward "^[.;]$" stop-point 'toend))
3428 (beginning-of-line)
3429 (if (looking-at "^\\.$") ; ";" is not supported yet
3430 (progn
3431 ;; Highlight the ending delimiter
3432 (cperl-postpone-fontification (point) (+ (point) 2)
3433 'face font-lock-string-face)
3434 (cperl-commentify (point) (+ (point) 2) nil)
3435 (cperl-put-do-not-fontify (point) (+ (point) 2) t))
3436 (message "End of format `%s' not found." name)
3437 (or (car err-l) (setcar err-l b)))
3438 (forward-line)
3439 (if (> (point) max)
3440 (setq tmpend tb))
3441 (put-text-property b (point) 'syntax-type 'format))
3442 ;; Regexp:
3443 ((or (match-beginning 10) (match-beginning 11))
3444 ;; 1+6+2=9 extra () before this:
3445 ;; "\\<\\(q[wxqr]?\\|[msy]\\|tr\\)\\>"
3446 ;; "\\|"
3447 ;; "\\([?/<]\\)" ; /blah/ or ?blah? or <file*glob>
3448 (setq b1 (if (match-beginning 10) 10 11)
3449 argument (buffer-substring
3450 (match-beginning b1) (match-end b1))
3451 b (point)
3453 c (char-after (match-beginning b1))
3454 bb (char-after (1- (match-beginning b1))) ; tmp holder
3455 ;; bb == "Not a stringy"
3456 bb (if (eq b1 10) ; user variables/whatever
3457 (and (memq bb (append "$@%*#_:-&>" nil)) ; $#y)
3458 (cond ((eq bb ?-) (eq c ?s)) ; -s file test
3459 ((eq bb ?\:) ; $opt::s
3460 (eq (char-after
3461 (- (match-beginning b1) 2))
3462 ?\:))
3463 ((eq bb ?\>) ; $foo->s
3464 (eq (char-after
3465 (- (match-beginning b1) 2))
3466 ?\-))
3467 ((eq bb ?\&)
3468 (not (eq (char-after ; &&m/blah/
3469 (- (match-beginning b1) 2))
3470 ?\&)))
3471 (t t)))
3472 ;; <file> or <$file>
3473 (and (eq c ?\<)
3474 ;; Do not stringify <FH>, <$fh> :
3475 (save-match-data
3476 (looking-at
3477 "\\$?\\([_a-zA-Z:][_a-zA-Z0-9:]*\\)?>"))))
3478 tb (match-beginning 0))
3479 (goto-char (match-beginning b1))
3480 (cperl-backward-to-noncomment (point-min))
3481 (or bb
3482 (if (eq b1 11) ; bare /blah/ or ?blah? or <foo>
3483 (setq argument ""
3484 b1 nil
3485 bb ; Not a regexp?
3486 (progn
3487 (not
3488 ;; What is below: regexp-p?
3489 (and
3490 (or (memq (preceding-char)
3491 (append (if (memq c '(?\? ?\<))
3492 ;; $a++ ? 1 : 2
3493 "~{(=|&*!,;:"
3494 "~{(=|&+-*!,;:") nil))
3495 (and (eq (preceding-char) ?\})
3496 (cperl-after-block-p (point-min)))
3497 (and (eq (char-syntax (preceding-char)) ?w)
3498 (progn
3499 (forward-sexp -1)
3500 ;; After these keywords `/' starts a RE. One should add all the
3501 ;; functions/builtins which expect an argument, but ...
3502 (if (eq (preceding-char) ?-)
3503 ;; -d ?foo? is a RE
3504 (looking-at "[a-zA-Z]\\>")
3505 (and
3506 (not (memq (preceding-char)
3507 '(?$ ?@ ?& ?%)))
3508 (looking-at
3509 "\\(while\\|if\\|unless\\|until\\|and\\|or\\|not\\|xor\\|split\\|grep\\|map\\|print\\)\\>")))))
3510 (and (eq (preceding-char) ?.)
3511 (eq (char-after (- (point) 2)) ?.))
3512 (bobp))
3513 ;; m|blah| ? foo : bar;
3514 (not
3515 (and (eq c ?\?)
3516 cperl-use-syntax-table-text-property
3517 (not (bobp))
3518 (progn
3519 (forward-char -1)
3520 (looking-at "\\s|")))))))
3521 b (1- b))
3522 ;; s y tr m
3523 ;; Check for $a -> y
3524 (setq b1 (preceding-char)
3525 go (point))
3526 (if (and (eq b1 ?>)
3527 (eq (char-after (- go 2)) ?-))
3528 ;; Not a regexp
3529 (setq bb t))))
3530 (or bb (setq state (parse-partial-sexp
3531 state-point b nil nil state)
3532 state-point b))
3533 (setq bb (or bb (nth 3 state) (nth 4 state)))
3534 (goto-char b)
3535 (or bb
3536 (progn
3537 (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
3538 (goto-char (match-end 0))
3539 (skip-chars-forward " \t\n\f"))
3540 (cond ((and (eq (following-char) ?\})
3541 (eq b1 ?\{))
3542 ;; Check for $a[23]->{ s }, @{s} and *{s::foo}
3543 (goto-char (1- go))
3544 (skip-chars-backward " \t\n\f")
3545 (if (memq (preceding-char) (append "$@%&*" nil))
3546 (setq bb t) ; @{y}
3547 (condition-case nil
3548 (forward-sexp -1)
3549 (error nil)))
3550 (if (or bb
3551 (looking-at ; $foo -> {s}
3552 "[$@]\\$*\\([a-zA-Z0-9_:]+\\|[^{]\\)\\([ \t\n]*->\\)?[ \t\n]*{")
3553 (and ; $foo[12] -> {s}
3554 (memq (following-char) '(?\{ ?\[))
3555 (progn
3556 (forward-sexp 1)
3557 (looking-at "\\([ \t\n]*->\\)?[ \t\n]*{"))))
3558 (setq bb t)
3559 (goto-char b)))
3560 ((and (eq (following-char) ?=)
3561 (eq (char-after (1+ (point))) ?\>))
3562 ;; Check for { foo => 1, s => 2 }
3563 ;; Apparently s=> is never a substitution...
3564 (setq bb t))
3565 ((and (eq (following-char) ?:)
3566 (eq b1 ?\{) ; Check for $ { s::bar }
3567 (looking-at "::[a-zA-Z0-9_:]*[ \t\n\f]*}")
3568 (progn
3569 (goto-char (1- go))
3570 (skip-chars-backward " \t\n\f")
3571 (memq (preceding-char)
3572 (append "$@%&*" nil))))
3573 (setq bb t)))))
3574 (if bb
3575 (goto-char i)
3576 ;; Skip whitespace and comments...
3577 (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
3578 (goto-char (match-end 0))
3579 (skip-chars-forward " \t\n\f"))
3580 (if (> (point) b)
3581 (put-text-property b (point) 'syntax-type 'prestring))
3582 ;; qtag means two-arg matcher, may be reset to
3583 ;; 2 or 3 later if some special quoting is needed.
3584 ;; e1 means matching-char matcher.
3585 (setq b (point)
3586 ;; has 2 args
3587 i2 (string-match "^\\([sy]\\|tr\\)$" argument)
3588 ;; We do not search to max, since we may be called from
3589 ;; some hook of fontification, and max is random
3590 i (cperl-forward-re stop-point end
3592 t st-l err-l argument)
3593 ;; Note that if `go', then it is considered as 1-arg
3594 b1 (nth 1 i) ; start of the second part
3595 tag (nth 2 i) ; ender-char, true if second part
3596 ; is with matching chars []
3597 go (nth 4 i) ; There is a 1-char part after the end
3598 i (car i) ; intermediate point
3599 e1 (point) ; end
3600 ;; Before end of the second part if non-matching: ///
3601 tail (if (and i (not tag))
3602 (1- e1))
3603 e (if i i e1) ; end of the first part
3604 qtag nil ; need to preserve backslashitis
3605 is-x-REx nil) ; REx has //x modifier
3606 ;; Commenting \\ is dangerous, what about ( ?
3607 (and i tail
3608 (eq (char-after i) ?\\)
3609 (setq qtag t))
3610 (if (looking-at "\\sw*x") ; qr//x
3611 (setq is-x-REx t))
3612 (if (null i)
3613 ;; Considered as 1arg form
3614 (progn
3615 (cperl-commentify b (point) t)
3616 (put-text-property b (point) 'syntax-type 'string)
3617 (if (or is-x-REx
3618 ;; ignore other text properties:
3619 (string-match "^qw$" argument))
3620 (put-text-property b (point) 'indentable t))
3621 (and go
3622 (setq e1 (cperl-1+ e1))
3623 (or (eobp)
3624 (forward-char 1))))
3625 (cperl-commentify b i t)
3626 (if (looking-at "\\sw*e") ; s///e
3627 (progn
3628 (and
3629 ;; silent:
3630 (cperl-find-pods-heres b1 (1- (point)) t end)
3631 ;; Error
3632 (goto-char (1+ max)))
3633 (if (and tag (eq (preceding-char) ?\>))
3634 (progn
3635 (cperl-modify-syntax-type (1- (point)) cperl-st-ket)
3636 (cperl-modify-syntax-type i cperl-st-bra)))
3637 (put-text-property b i 'syntax-type 'string)
3638 (if is-x-REx
3639 (put-text-property b i 'indentable t)))
3640 (cperl-commentify b1 (point) t)
3641 (put-text-property b (point) 'syntax-type 'string)
3642 (if is-x-REx
3643 (put-text-property b i 'indentable t))
3644 (if qtag
3645 (cperl-modify-syntax-type (1+ i) cperl-st-punct))
3646 (setq tail nil)))
3647 ;; Now: tail: if the second part is non-matching without ///e
3648 (if (eq (char-syntax (following-char)) ?w)
3649 (progn
3650 (forward-word 1) ; skip modifiers s///s
3651 (if tail (cperl-commentify tail (point) t))
3652 (cperl-postpone-fontification
3653 e1 (point) 'face 'cperl-nonoverridable-face)))
3654 ;; Check whether it is m// which means "previous match"
3655 ;; and highlight differently
3656 (setq is-REx
3657 (and (string-match "^\\([sm]?\\|qr\\)$" argument)
3658 (or (not (= (length argument) 0))
3659 (not (eq c ?\<)))))
3660 (if (and is-REx
3661 (eq e (+ 2 b))
3662 ;; split // *is* using zero-pattern
3663 (save-excursion
3664 (condition-case nil
3665 (progn
3666 (goto-char tb)
3667 (forward-sexp -1)
3668 (not (looking-at "split\\>")))
3669 (error t))))
3670 (cperl-postpone-fontification
3671 b e 'face font-lock-function-name-face)
3672 (if (or i2 ; Has 2 args
3673 (and cperl-fontify-m-as-s
3675 (string-match "^\\(m\\|qr\\)$" argument)
3676 (and (eq 0 (length argument))
3677 (not (eq ?\< (char-after b)))))))
3678 (progn
3679 (cperl-postpone-fontification
3680 b (cperl-1+ b) 'face font-lock-constant-face)
3681 (cperl-postpone-fontification
3682 (1- e) e 'face font-lock-constant-face)))
3683 (if (and is-REx cperl-regexp-scan)
3684 ;; Process RExen better
3685 (save-excursion
3686 (goto-char (1+ b))
3687 (while
3688 (and (< (point) e)
3689 (re-search-forward
3690 (if is-x-REx
3691 (if (eq (char-after b) ?\#)
3692 "\\((\\?\\\\#\\)\\|\\(\\\\#\\)"
3693 "\\((\\?#\\)\\|\\(#\\)")
3694 (if (eq (char-after b) ?\#)
3695 "\\((\\?\\\\#\\)"
3696 "\\((\\?#\\)"))
3697 (1- e) 'to-end))
3698 (goto-char (match-beginning 0))
3699 (setq REx-comment-start (point)
3700 was-comment t)
3701 (if (save-excursion
3702 (and
3703 ;; XXX not working if outside delimiter is #
3704 (eq (preceding-char) ?\\)
3705 (= (% (skip-chars-backward "$\\\\") 2) -1)))
3706 ;; Not a comment, avoid loop:
3707 (progn (setq was-comment nil)
3708 (forward-char 1))
3709 (if (match-beginning 2)
3710 (progn
3711 (beginning-of-line 2)
3712 (if (> (point) e)
3713 (goto-char (1- e))))
3714 ;; Works also if the outside delimiters are ().
3715 (or (search-forward ")" (1- e) 'toend)
3716 (message
3717 "Couldn't find end of (?#...)-comment in a REx, pos=%s"
3718 REx-comment-start))))
3719 (if (>= (point) e)
3720 (goto-char (1- e)))
3721 (if was-comment
3722 (progn
3723 (setq REx-comment-end (point))
3724 (cperl-commentify
3725 REx-comment-start REx-comment-end nil)
3726 (cperl-postpone-fontification
3727 REx-comment-start REx-comment-end
3728 'face font-lock-comment-face))))))
3729 (if (and is-REx is-x-REx)
3730 (put-text-property (1+ b) (1- e)
3731 'syntax-subtype 'x-REx)))
3732 (if i2
3733 (progn
3734 (cperl-postpone-fontification
3735 (1- e1) e1 'face font-lock-constant-face)
3736 (if (assoc (char-after b) cperl-starters)
3737 (cperl-postpone-fontification
3738 b1 (1+ b1) 'face font-lock-constant-face))))
3739 (if (> (point) max)
3740 (setq tmpend tb))))
3741 ((match-beginning 13) ; sub with prototypes
3742 (setq b (match-beginning 0))
3743 (if (memq (char-after (1- b))
3744 '(?\$ ?\@ ?\% ?\& ?\*))
3746 (setq state (parse-partial-sexp
3747 state-point b nil nil state)
3748 state-point b)
3749 (if (or (nth 3 state) (nth 4 state))
3751 ;; Mark as string
3752 (cperl-commentify (match-beginning 13) (match-end 13) t))
3753 (goto-char (match-end 0))))
3754 ;; 1+6+2+1+1+2=13 extra () before this:
3755 ;; "\\$\\(['{]\\)"
3756 ((and (match-beginning 14)
3757 (eq (preceding-char) ?\')) ; $'
3758 (setq b (1- (point))
3759 state (parse-partial-sexp
3760 state-point (1- b) nil nil state)
3761 state-point (1- b))
3762 (if (nth 3 state) ; in string
3763 (cperl-modify-syntax-type (1- b) cperl-st-punct))
3764 (goto-char (1+ b)))
3765 ;; 1+6+2+1+1+2=13 extra () before this:
3766 ;; "\\$\\(['{]\\)"
3767 ((match-beginning 14) ; ${
3768 (setq bb (match-beginning 0))
3769 (cperl-modify-syntax-type bb cperl-st-punct))
3770 ;; 1+6+2+1+1+2+1=14 extra () before this:
3771 ;; "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'")
3772 ((match-beginning 15) ; old $abc'efg syntax
3773 (setq bb (match-end 0)
3774 b (match-beginning 0)
3775 state (parse-partial-sexp
3776 state-point b nil nil state)
3777 state-point b)
3778 (if (nth 3 state) ; in string
3780 (put-text-property (1- bb) bb 'syntax-table cperl-st-word))
3781 (goto-char bb))
3782 ;; 1+6+2+1+1+2+1+1=15 extra () before this:
3783 ;; "__\\(END\\|DATA\\)__"
3784 ((match-beginning 16) ; __END__, __DATA__
3785 (setq bb (match-end 0)
3786 b (match-beginning 0)
3787 state (parse-partial-sexp
3788 state-point b nil nil state)
3789 state-point b)
3790 (if (or (nth 3 state) (nth 4 state))
3792 ;; (put-text-property b (1+ bb) 'syntax-type 'pod) ; Cheat
3793 (cperl-commentify b bb nil)
3794 (setq end t))
3795 (goto-char bb))
3796 ((match-beginning 17) ; "\\\\\\(['`\"($]\\)"
3797 ;; Trailing backslash ==> non-quoting outside string/comment
3798 (setq bb (match-end 0)
3799 b (match-beginning 0))
3800 (goto-char b)
3801 (skip-chars-backward "\\\\")
3802 ;;;(setq i2 (= (% (skip-chars-backward "\\\\") 2) -1))
3803 (setq state (parse-partial-sexp
3804 state-point b nil nil state)
3805 state-point b)
3806 (if (or (nth 3 state) (nth 4 state) )
3808 (cperl-modify-syntax-type b cperl-st-punct))
3809 (goto-char bb))
3810 (t (error "Error in regexp of the sniffer")))
3811 (if (> (point) stop-point)
3812 (progn
3813 (if end
3814 (message "Garbage after __END__/__DATA__ ignored")
3815 (message "Unbalanced syntax found while scanning")
3816 (or (car err-l) (setcar err-l b)))
3817 (goto-char stop-point))))
3818 (setq cperl-syntax-state (cons state-point state)
3819 cperl-syntax-done-to (or tmpend (max (point) max))))
3820 (if (car err-l) (goto-char (car err-l))
3821 (or non-inter
3822 (message "Scanning for \"hard\" Perl constructions... done"))))
3823 (and (buffer-modified-p)
3824 (not modified)
3825 (set-buffer-modified-p nil))
3826 (set-syntax-table cperl-mode-syntax-table))
3827 (car err-l)))
3829 (defun cperl-backward-to-noncomment (lim)
3830 ;; Stops at lim or after non-whitespace that is not in comment
3831 (let (stop p pr)
3832 (while (and (not stop) (> (point) (or lim 1)))
3833 (skip-chars-backward " \t\n\f" lim)
3834 (setq p (point))
3835 (beginning-of-line)
3836 (if (memq (setq pr (get-text-property (point) 'syntax-type))
3837 '(pod here-doc here-doc-delim))
3838 (cperl-unwind-to-safe nil)
3839 (or (looking-at "^[ \t]*\\(#\\|$\\)")
3840 (progn (cperl-to-comment-or-eol) (bolp))
3841 (progn
3842 (skip-chars-backward " \t")
3843 (if (< p (point)) (goto-char p))
3844 (setq stop t)))))))
3846 (defun cperl-after-block-p (lim &optional pre-block)
3847 "Return true if the preceeding } ends a block or a following { starts one.
3848 Would not look before LIM. If PRE-BLOCK is nil checks preceeding }.
3849 otherwise following {."
3850 ;; We suppose that the preceding char is }.
3851 (save-excursion
3852 (condition-case nil
3853 (progn
3854 (or pre-block (forward-sexp -1))
3855 (cperl-backward-to-noncomment lim)
3856 (or (eq (point) lim)
3857 (eq (preceding-char) ?\) ) ; if () {} sub f () {}
3858 (if (eq (char-syntax (preceding-char)) ?w) ; else {}
3859 (save-excursion
3860 (forward-sexp -1)
3861 (or (looking-at "\\(else\\|continue\\|grep\\|map\\|BEGIN\\|END\\|CHECK\\|INIT\\)\\>")
3862 ;; sub f {}
3863 (progn
3864 (cperl-backward-to-noncomment lim)
3865 (and (eq (char-syntax (preceding-char)) ?w)
3866 (progn
3867 (forward-sexp -1)
3868 (looking-at "sub\\>"))))))
3869 (cperl-after-expr-p lim))))
3870 (error nil))))
3872 (defun cperl-after-expr-p (&optional lim chars test)
3873 "Return true if the position is good for start of expression.
3874 TEST is the expression to evaluate at the found position. If absent,
3875 CHARS is a string that contains good characters to have before us (however,
3876 `}' is treated \"smartly\" if it is not in the list)."
3877 (let ((lim (or lim (point-min)))
3878 stop p pr)
3879 (cperl-update-syntaxification (point) (point))
3880 (save-excursion
3881 (while (and (not stop) (> (point) lim))
3882 (skip-chars-backward " \t\n\f" lim)
3883 (setq p (point))
3884 (beginning-of-line)
3885 ;;(memq (setq pr (get-text-property (point) 'syntax-type))
3886 ;; '(pod here-doc here-doc-delim))
3887 (if (get-text-property (point) 'here-doc-group)
3888 (progn
3889 (goto-char
3890 (previous-single-property-change (point) 'here-doc-group))
3891 (beginning-of-line 0)))
3892 (if (get-text-property (point) 'in-pod)
3893 (progn
3894 (goto-char
3895 (previous-single-property-change (point) 'in-pod))
3896 (beginning-of-line 0)))
3897 (if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
3898 ;; Else: last iteration, or a label
3899 (cperl-to-comment-or-eol) ; Will not move past "." after a format
3900 (skip-chars-backward " \t")
3901 (if (< p (point)) (goto-char p))
3902 (setq p (point))
3903 (if (and (eq (preceding-char) ?:)
3904 (progn
3905 (forward-char -1)
3906 (skip-chars-backward " \t\n\f" lim)
3907 (eq (char-syntax (preceding-char)) ?w)))
3908 (forward-sexp -1) ; Possibly label. Skip it
3909 (goto-char p)
3910 (setq stop t))))
3911 (or (bobp) ; ???? Needed
3912 (eq (point) lim)
3913 (looking-at "[ \t]*__\\(END\\|DATA\\)__") ; After this anything goes
3914 (progn
3915 (if test (eval test)
3916 (or (memq (preceding-char) (append (or chars "{;") nil))
3917 (and (eq (preceding-char) ?\})
3918 (cperl-after-block-p lim))
3919 (and (eq (following-char) ?.) ; in format: see comment above
3920 (eq (get-text-property (point) 'syntax-type)
3921 'format)))))))))
3923 (defun cperl-backward-to-start-of-continued-exp (lim)
3924 (if (memq (preceding-char) (append ")]}\"'`" nil))
3925 (forward-sexp -1))
3926 (beginning-of-line)
3927 (if (<= (point) lim)
3928 (goto-char (1+ lim)))
3929 (skip-chars-forward " \t"))
3931 (defun cperl-after-block-and-statement-beg (lim)
3932 ;; We assume that we are after ?\}
3933 (and
3934 (cperl-after-block-p lim)
3935 (save-excursion
3936 (forward-sexp -1)
3937 (cperl-backward-to-noncomment (point-min))
3938 (or (bobp)
3939 (eq (point) lim)
3940 (not (= (char-syntax (preceding-char)) ?w))
3941 (progn
3942 (forward-sexp -1)
3943 (not
3944 (looking-at
3945 "\\(map\\|grep\\|printf?\\|system\\|exec\\|tr\\|s\\)\\>")))))))
3948 (defun cperl-indent-exp ()
3949 "Simple variant of indentation of continued-sexp.
3951 Will not indent comment if it starts at `comment-indent' or looks like
3952 continuation of the comment on the previous line.
3954 If `cperl-indent-region-fix-constructs', will improve spacing on
3955 conditional/loop constructs."
3956 (interactive)
3957 (save-excursion
3958 (let ((tmp-end (progn (end-of-line) (point))) top done)
3959 (save-excursion
3960 (beginning-of-line)
3961 (while (null done)
3962 (setq top (point))
3963 (while (= (nth 0 (parse-partial-sexp (point) tmp-end
3964 -1)) -1)
3965 (setq top (point))) ; Get the outermost parenths in line
3966 (goto-char top)
3967 (while (< (point) tmp-end)
3968 (parse-partial-sexp (point) tmp-end nil t) ; To start-sexp or eol
3969 (or (eolp) (forward-sexp 1)))
3970 (if (> (point) tmp-end)
3971 (save-excursion
3972 (end-of-line)
3973 (setq tmp-end (point)))
3974 (setq done t)))
3975 (goto-char tmp-end)
3976 (setq tmp-end (point-marker)))
3977 (if cperl-indent-region-fix-constructs
3978 (cperl-fix-line-spacing tmp-end))
3979 (cperl-indent-region (point) tmp-end))))
3981 (defun cperl-fix-line-spacing (&optional end parse-data)
3982 "Improve whitespace in a conditional/loop construct.
3983 Returns some position at the last line."
3984 (interactive)
3985 (or end
3986 (setq end (point-max)))
3987 (let ((ee (save-excursion (end-of-line) (point)))
3988 (cperl-indent-region-fix-constructs
3989 (or cperl-indent-region-fix-constructs 1))
3990 p pp ml have-brace ret)
3991 (save-excursion
3992 (beginning-of-line)
3993 (setq ret (point))
3994 ;; }? continue
3995 ;; blah; }
3996 (if (not
3997 (or (looking-at "[ \t]*\\(els\\(e\\|if\\)\\|continue\\|if\\|while\\|for\\(each\\)?\\|until\\)")
3998 (setq have-brace (save-excursion (search-forward "}" ee t)))))
3999 nil ; Do not need to do anything
4000 ;; Looking at:
4001 ;; }
4002 ;; else
4003 (if (and cperl-merge-trailing-else
4004 (looking-at
4005 "[ \t]*}[ \t]*\n[ \t\n]*\\(els\\(e\\|if\\)\\|continue\\)\\>"))
4006 (progn
4007 (search-forward "}")
4008 (setq p (point))
4009 (skip-chars-forward " \t\n")
4010 (delete-region p (point))
4011 (insert (make-string cperl-indent-region-fix-constructs ?\ ))
4012 (beginning-of-line)))
4013 ;; Looking at:
4014 ;; } else
4015 (if (looking-at "[ \t]*}\\(\t*\\|[ \t][ \t]+\\)\\<\\(els\\(e\\|if\\)\\|continue\\)\\>")
4016 (progn
4017 (search-forward "}")
4018 (delete-horizontal-space)
4019 (insert (make-string cperl-indent-region-fix-constructs ?\ ))
4020 (beginning-of-line)))
4021 ;; Looking at:
4022 ;; else {
4023 (if (looking-at
4024 "[ \t]*}?[ \t]*\\<\\(\\els\\(e\\|if\\)\\|continue\\|unless\\|if\\|while\\|for\\(each\\)?\\|until\\)\\>\\(\t*\\|[ \t][ \t]+\\)[^ \t\n#]")
4025 (progn
4026 (forward-word 1)
4027 (delete-horizontal-space)
4028 (insert (make-string cperl-indent-region-fix-constructs ?\ ))
4029 (beginning-of-line)))
4030 ;; Looking at:
4031 ;; foreach my $var
4032 (if (looking-at
4033 "[ \t]*\\<for\\(each\\)?[ \t]+\\(my\\|local\\|our\\)\\(\t*\\|[ \t][ \t]+\\)[^ \t\n]")
4034 (progn
4035 (forward-word 2)
4036 (delete-horizontal-space)
4037 (insert (make-string cperl-indent-region-fix-constructs ?\ ))
4038 (beginning-of-line)))
4039 ;; Looking at:
4040 ;; foreach my $var (
4041 (if (looking-at
4042 "[ \t]*\\<for\\(each\\)?[ \t]+\\(my\\|local\\|our\\)[ \t]*\\$[_a-zA-Z0-9]+\\(\t*\\|[ \t][ \t]+\\)[^ \t\n#]")
4043 (progn
4044 (forward-sexp 3)
4045 (delete-horizontal-space)
4046 (insert
4047 (make-string cperl-indent-region-fix-constructs ?\ ))
4048 (beginning-of-line)))
4049 ;; Looking at:
4050 ;; } foreach my $var () {
4051 (if (looking-at
4052 "[ \t]*\\(}[ \t]*\\)?\\<\\(\\els\\(e\\|if\\)\\|continue\\|if\\|unless\\|while\\|for\\(each\\)?\\(\\([ \t]+\\(my\\|local\\|our\\)\\)?[ \t]*\\$[_a-zA-Z0-9]+\\)?\\|until\\)\\>\\([ \t]*(\\|[ \t\n]*{\\)\\|[ \t]*{")
4053 (progn
4054 (setq ml (match-beginning 8))
4055 (re-search-forward "[({]")
4056 (forward-char -1)
4057 (setq p (point))
4058 (if (eq (following-char) ?\( )
4059 (progn
4060 (forward-sexp 1)
4061 (setq pp (point)))
4062 ;; after `else' or nothing
4063 (if ml ; after `else'
4064 (skip-chars-backward " \t\n")
4065 (beginning-of-line))
4066 (setq pp nil))
4067 ;; Now after the sexp before the brace
4068 ;; Multiline expr should be special
4069 (setq ml (and pp (save-excursion (goto-char p)
4070 (search-forward "\n" pp t))))
4071 (if (and (or (not pp) (< pp end))
4072 (looking-at "[ \t\n]*{"))
4073 (progn
4074 (cond
4075 ((bolp) ; Were before `{', no if/else/etc
4076 nil)
4077 ((looking-at "\\(\t*\\| [ \t]+\\){")
4078 (delete-horizontal-space)
4079 (if (if ml
4080 cperl-extra-newline-before-brace-multiline
4081 cperl-extra-newline-before-brace)
4082 (progn
4083 (delete-horizontal-space)
4084 (insert "\n")
4085 (setq ret (point))
4086 (if (cperl-indent-line parse-data)
4087 (progn
4088 (cperl-fix-line-spacing end parse-data)
4089 (setq ret (point)))))
4090 (insert
4091 (make-string cperl-indent-region-fix-constructs ?\ ))))
4092 ((and (looking-at "[ \t]*\n")
4093 (not (if ml
4094 cperl-extra-newline-before-brace-multiline
4095 cperl-extra-newline-before-brace)))
4096 (setq pp (point))
4097 (skip-chars-forward " \t\n")
4098 (delete-region pp (point))
4099 (insert
4100 (make-string cperl-indent-region-fix-constructs ?\ ))))
4101 ;; Now we are before `{'
4102 (if (looking-at "[ \t\n]*{[ \t]*[^ \t\n#]")
4103 (progn
4104 (skip-chars-forward " \t\n")
4105 (setq pp (point))
4106 (forward-sexp 1)
4107 (setq p (point))
4108 (goto-char pp)
4109 (setq ml (search-forward "\n" p t))
4110 (if (or cperl-break-one-line-blocks-when-indent ml)
4111 ;; not good: multi-line BLOCK
4112 (progn
4113 (goto-char (1+ pp))
4114 (delete-horizontal-space)
4115 (insert "\n")
4116 (setq ret (point))
4117 (if (cperl-indent-line parse-data)
4118 (setq ret (cperl-fix-line-spacing end parse-data)))))))))))
4119 (beginning-of-line)
4120 (setq p (point) pp (save-excursion (end-of-line) (point))) ; May be different from ee.
4121 ;; Now check whether there is a hanging `}'
4122 ;; Looking at:
4123 ;; } blah
4124 (if (and
4125 cperl-fix-hanging-brace-when-indent
4126 have-brace
4127 (not (looking-at "[ \t]*}[ \t]*\\(\\<\\(els\\(if\\|e\\)\\|continue\\|while\\|until\\)\\>\\|$\\|#\\)"))
4128 (condition-case nil
4129 (progn
4130 (up-list 1)
4131 (if (and (<= (point) pp)
4132 (eq (preceding-char) ?\} )
4133 (cperl-after-block-and-statement-beg (point-min)))
4135 (goto-char p)
4136 nil))
4137 (error nil)))
4138 (progn
4139 (forward-char -1)
4140 (skip-chars-backward " \t")
4141 (if (bolp)
4142 ;; `}' was the first thing on the line, insert NL *after* it.
4143 (progn
4144 (cperl-indent-line parse-data)
4145 (search-forward "}")
4146 (delete-horizontal-space)
4147 (insert "\n"))
4148 (delete-horizontal-space)
4149 (or (eq (preceding-char) ?\;)
4150 (bolp)
4151 (and (eq (preceding-char) ?\} )
4152 (cperl-after-block-p (point-min)))
4153 (insert ";"))
4154 (insert "\n")
4155 (setq ret (point)))
4156 (if (cperl-indent-line parse-data)
4157 (setq ret (cperl-fix-line-spacing end parse-data)))
4158 (beginning-of-line)))))
4159 ret))
4161 (defvar cperl-update-start) ; Do not need to make them local
4162 (defvar cperl-update-end)
4163 (defun cperl-delay-update-hook (beg end old-len)
4164 (setq cperl-update-start (min beg (or cperl-update-start (point-max))))
4165 (setq cperl-update-end (max end (or cperl-update-end (point-min)))))
4167 (defun cperl-indent-region (start end)
4168 "Simple variant of indentation of region in CPerl mode.
4169 Should be slow. Will not indent comment if it starts at `comment-indent'
4170 or looks like continuation of the comment on the previous line.
4171 Indents all the lines whose first character is between START and END
4172 inclusive.
4174 If `cperl-indent-region-fix-constructs', will improve spacing on
4175 conditional/loop constructs."
4176 (interactive "r")
4177 (cperl-update-syntaxification end end)
4178 (save-excursion
4179 (let (cperl-update-start cperl-update-end (h-a-c after-change-functions))
4180 (let ((indent-info (if cperl-emacs-can-parse
4181 (list nil nil nil) ; Cannot use '(), since will modify
4182 nil))
4183 (pm 0)
4184 after-change-functions ; Speed it up!
4185 st comm old-comm-indent new-comm-indent p pp i empty)
4186 (if h-a-c (add-hook 'after-change-functions 'cperl-delay-update-hook))
4187 (goto-char start)
4188 (setq old-comm-indent (and (cperl-to-comment-or-eol)
4189 (current-column))
4190 new-comm-indent old-comm-indent)
4191 (goto-char start)
4192 (setq end (set-marker (make-marker) end)) ; indentation changes pos
4193 (or (bolp) (beginning-of-line 2))
4194 (while (and (<= (point) end) (not (eobp))) ; bol to check start
4195 (setq st (point))
4196 (if (or
4197 (setq empty (looking-at "[ \t]*\n"))
4198 (and (setq comm (looking-at "[ \t]*#"))
4199 (or (eq (current-indentation) (or old-comm-indent
4200 comment-column))
4201 (setq old-comm-indent nil))))
4202 (if (and old-comm-indent
4203 (not empty)
4204 (= (current-indentation) old-comm-indent)
4205 (not (eq (get-text-property (point) 'syntax-type) 'pod))
4206 (not (eq (get-text-property (point) 'syntax-table)
4207 cperl-st-cfence)))
4208 (let ((comment-column new-comm-indent))
4209 (indent-for-comment)))
4210 (progn
4211 (setq i (cperl-indent-line indent-info))
4212 (or comm
4213 (not i)
4214 (progn
4215 (if cperl-indent-region-fix-constructs
4216 (goto-char (cperl-fix-line-spacing end indent-info)))
4217 (if (setq old-comm-indent
4218 (and (cperl-to-comment-or-eol)
4219 (not (memq (get-text-property (point)
4220 'syntax-type)
4221 '(pod here-doc)))
4222 (not (eq (get-text-property (point)
4223 'syntax-table)
4224 cperl-st-cfence))
4225 (current-column)))
4226 (progn (indent-for-comment)
4227 (skip-chars-backward " \t")
4228 (skip-chars-backward "#")
4229 (setq new-comm-indent (current-column))))))))
4230 (beginning-of-line 2)))
4231 ;; Now run the update hooks
4232 (and after-change-functions
4233 cperl-update-end
4234 (save-excursion
4235 (goto-char cperl-update-end)
4236 (insert " ")
4237 (delete-char -1)
4238 (goto-char cperl-update-start)
4239 (insert " ")
4240 (delete-char -1))))))
4242 ;; Stolen from lisp-mode with a lot of improvements
4244 (defun cperl-fill-paragraph (&optional justify iteration)
4245 "Like `fill-paragraph', but handle CPerl comments.
4246 If any of the current line is a comment, fill the comment or the
4247 block of it that point is in, preserving the comment's initial
4248 indentation and initial hashes. Behaves usually outside of comment."
4249 ;; (interactive "P") ; Only works when called from fill-paragraph. -stef
4250 (let (;; Non-nil if the current line contains a comment.
4251 has-comment
4253 ;; If has-comment, the appropriate fill-prefix for the comment.
4254 comment-fill-prefix
4255 ;; Line that contains code and comment (or nil)
4256 start
4257 c spaces len dc (comment-column comment-column))
4258 ;; Figure out what kind of comment we are looking at.
4259 (save-excursion
4260 (beginning-of-line)
4261 (cond
4263 ;; A line with nothing but a comment on it?
4264 ((looking-at "[ \t]*#[# \t]*")
4265 (setq has-comment t
4266 comment-fill-prefix (buffer-substring (match-beginning 0)
4267 (match-end 0))))
4269 ;; A line with some code, followed by a comment? Remember that the
4270 ;; semi which starts the comment shouldn't be part of a string or
4271 ;; character.
4272 ((cperl-to-comment-or-eol)
4273 (setq has-comment t)
4274 (looking-at "#+[ \t]*")
4275 (setq start (point) c (current-column)
4276 comment-fill-prefix
4277 (concat (make-string (current-column) ?\ )
4278 (buffer-substring (match-beginning 0) (match-end 0)))
4279 spaces (progn (skip-chars-backward " \t")
4280 (buffer-substring (point) start))
4281 dc (- c (current-column)) len (- start (point))
4282 start (point-marker))
4283 (delete-char len)
4284 (insert (make-string dc ?-)))))
4285 (if (not has-comment)
4286 (fill-paragraph justify) ; Do the usual thing outside of comment
4287 ;; Narrow to include only the comment, and then fill the region.
4288 (save-restriction
4289 (narrow-to-region
4290 ;; Find the first line we should include in the region to fill.
4291 (if start (progn (beginning-of-line) (point))
4292 (save-excursion
4293 (while (and (zerop (forward-line -1))
4294 (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
4295 ;; We may have gone to far. Go forward again.
4296 (or (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")
4297 (forward-line 1))
4298 (point)))
4299 ;; Find the beginning of the first line past the region to fill.
4300 (save-excursion
4301 (while (progn (forward-line 1)
4302 (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
4303 (point)))
4304 ;; Remove existing hashes
4305 (save-excursion
4306 (goto-char (point-min))
4307 (while (progn (forward-line 1) (< (point) (point-max)))
4308 (skip-chars-forward " \t")
4309 (and (looking-at "#+")
4310 (delete-char (- (match-end 0) (match-beginning 0))))))
4312 ;; Lines with only hashes on them can be paragraph boundaries.
4313 (let ((paragraph-start (concat paragraph-start "\\|^[ \t#]*$"))
4314 (paragraph-separate (concat paragraph-start "\\|^[ \t#]*$"))
4315 (fill-prefix comment-fill-prefix))
4316 (fill-paragraph justify)))
4317 (if (and start)
4318 (progn
4319 (goto-char start)
4320 (if (> dc 0)
4321 (progn (delete-char dc) (insert spaces)))
4322 (if (or (= (current-column) c) iteration) nil
4323 (setq comment-column c)
4324 (indent-for-comment)
4325 ;; Repeat once more, flagging as iteration
4326 (cperl-fill-paragraph justify t)))))))
4328 (defun cperl-do-auto-fill ()
4329 ;; Break out if the line is short enough
4330 (if (> (save-excursion
4331 (end-of-line)
4332 (current-column))
4333 fill-column)
4334 (let ((c (save-excursion (beginning-of-line)
4335 (cperl-to-comment-or-eol) (point)))
4336 (s (memq (following-char) '(?\ ?\t))) marker)
4337 (if (>= c (point))
4338 ;; Don't break line inside code: only inside comment.
4340 (setq marker (point-marker))
4341 (fill-paragraph nil)
4342 (goto-char marker)
4343 ;; Is not enough, sometimes marker is a start of line
4344 (if (bolp) (progn (re-search-forward "#+[ \t]*")
4345 (goto-char (match-end 0))))
4346 ;; Following space could have gone:
4347 (if (or (not s) (memq (following-char) '(?\ ?\t))) nil
4348 (insert " ")
4349 (backward-char 1))
4350 ;; Previous space could have gone:
4351 (or (memq (preceding-char) '(?\ ?\t)) (insert " "))))))
4353 (defun cperl-imenu-addback (lst &optional isback name)
4354 ;; We suppose that the lst is a DAG, unless the first element only
4355 ;; loops back, and ISBACK is set. Thus this function cannot be
4356 ;; applied twice without ISBACK set.
4357 (cond ((not cperl-imenu-addback) lst)
4359 (or name
4360 (setq name "+++BACK+++"))
4361 (mapcar (lambda (elt)
4362 (if (and (listp elt) (listp (cdr elt)))
4363 (progn
4364 ;; In the other order it goes up
4365 ;; one level only ;-(
4366 (setcdr elt (cons (cons name lst)
4367 (cdr elt)))
4368 (cperl-imenu-addback (cdr elt) t name))))
4369 (if isback (cdr lst) lst))
4370 lst)))
4372 (defun cperl-imenu--create-perl-index (&optional regexp)
4373 (require 'imenu) ; May be called from TAGS creator
4374 (let ((index-alist '()) (index-pack-alist '()) (index-pod-alist '())
4375 (index-unsorted-alist '()) (i-s-f (default-value 'imenu-sort-function))
4376 (index-meth-alist '()) meth
4377 packages ends-ranges p marker
4378 (prev-pos 0) char fchar index index1 name (end-range 0) package)
4379 (goto-char (point-min))
4380 (cperl-update-syntaxification (point-max) (point-max))
4381 ;; Search for the function
4382 (progn ;;save-match-data
4383 (while (re-search-forward
4384 (or regexp cperl-imenu--function-name-regexp-perl)
4385 nil t)
4386 (cond
4387 ((and ; Skip some noise if building tags
4388 (match-beginning 2) ; package or sub
4389 (eq (char-after (match-beginning 2)) ?p) ; package
4390 (not (save-match-data
4391 (looking-at "[ \t\n]*;")))) ; Plain text word 'package'
4392 nil)
4393 ((and
4394 (match-beginning 2) ; package or sub
4395 ;; Skip if quoted (will not skip multi-line ''-strings :-():
4396 (null (get-text-property (match-beginning 1) 'syntax-table))
4397 (null (get-text-property (match-beginning 1) 'syntax-type))
4398 (null (get-text-property (match-beginning 1) 'in-pod)))
4399 (save-excursion
4400 (goto-char (match-beginning 2))
4401 (setq fchar (following-char)))
4402 ;; (if (looking-at "([^()]*)[ \t\n\f]*")
4403 ;; (goto-char (match-end 0))) ; Messes what follows
4404 (setq char (following-char) ; ?\; for "sub foo () ;"
4405 meth nil
4406 p (point))
4407 (while (and ends-ranges (>= p (car ends-ranges)))
4408 ;; delete obsolete entries
4409 (setq ends-ranges (cdr ends-ranges) packages (cdr packages)))
4410 (setq package (or (car packages) "")
4411 end-range (or (car ends-ranges) 0))
4412 (if (eq fchar ?p)
4413 (setq name (buffer-substring (match-beginning 3) (match-end 3))
4414 name (progn
4415 (set-text-properties 0 (length name) nil name)
4416 name)
4417 package (concat name "::")
4418 name (concat "package " name)
4419 end-range
4420 (save-excursion
4421 (parse-partial-sexp (point) (point-max) -1) (point))
4422 ends-ranges (cons end-range ends-ranges)
4423 packages (cons package packages)))
4424 ;; )
4425 ;; Skip this function name if it is a prototype declaration.
4426 (if (and (eq fchar ?s) (eq char ?\;)) nil
4427 (setq name (buffer-substring (match-beginning 3) (match-end 3))
4428 marker (make-marker))
4429 (set-text-properties 0 (length name) nil name)
4430 (set-marker marker (match-end 3))
4431 (if (eq fchar ?p)
4432 (setq name (concat "package " name))
4433 (cond ((string-match "[:']" name)
4434 (setq meth t))
4435 ((> p end-range) nil)
4437 (setq name (concat package name) meth t))))
4438 (setq index (cons name marker))
4439 (if (eq fchar ?p)
4440 (push index index-pack-alist)
4441 (push index index-alist))
4442 (if meth (push index index-meth-alist))
4443 (push index index-unsorted-alist)))
4444 ((match-beginning 5) ; POD section
4445 ;; (beginning-of-line)
4446 (setq index (imenu-example--name-and-position)
4447 name (buffer-substring (match-beginning 6) (match-end 6)))
4448 (set-text-properties 0 (length name) nil name)
4449 (if (eq (char-after (match-beginning 5)) ?2)
4450 (setq name (concat " " name)))
4451 (setcar index name)
4452 (setq index1 (cons (concat "=" name) (cdr index)))
4453 (push index index-pod-alist)
4454 (push index1 index-unsorted-alist)))))
4455 (setq index-alist
4456 (if (default-value 'imenu-sort-function)
4457 (sort index-alist (default-value 'imenu-sort-function))
4458 (nreverse index-alist)))
4459 (and index-pod-alist
4460 (push (cons "+POD headers+..."
4461 (nreverse index-pod-alist))
4462 index-alist))
4463 (and (or index-pack-alist index-meth-alist)
4464 (let ((lst index-pack-alist) hier-list pack elt group name)
4465 ;; Remove "package ", reverse and uniquify.
4466 (while lst
4467 (setq elt (car lst) lst (cdr lst) name (substring (car elt) 8))
4468 (if (assoc name hier-list) nil
4469 (setq hier-list (cons (cons name (cdr elt)) hier-list))))
4470 (setq lst index-meth-alist)
4471 (while lst
4472 (setq elt (car lst) lst (cdr lst))
4473 (cond ((string-match "\\(::\\|'\\)[_a-zA-Z0-9]+$" (car elt))
4474 (setq pack (substring (car elt) 0 (match-beginning 0)))
4475 (if (setq group (assoc pack hier-list))
4476 (if (listp (cdr group))
4477 ;; Have some functions already
4478 (setcdr group
4479 (cons (cons (substring
4480 (car elt)
4481 (+ 2 (match-beginning 0)))
4482 (cdr elt))
4483 (cdr group)))
4484 (setcdr group (list (cons (substring
4485 (car elt)
4486 (+ 2 (match-beginning 0)))
4487 (cdr elt)))))
4488 (setq hier-list
4489 (cons (cons pack
4490 (list (cons (substring
4491 (car elt)
4492 (+ 2 (match-beginning 0)))
4493 (cdr elt))))
4494 hier-list))))))
4495 (push (cons "+Hierarchy+..."
4496 hier-list)
4497 index-alist)))
4498 (and index-pack-alist
4499 (push (cons "+Packages+..."
4500 (nreverse index-pack-alist))
4501 index-alist))
4502 (and (or index-pack-alist index-pod-alist
4503 (default-value 'imenu-sort-function))
4504 index-unsorted-alist
4505 (push (cons "+Unsorted List+..."
4506 (nreverse index-unsorted-alist))
4507 index-alist))
4508 (cperl-imenu-addback index-alist)))
4511 ;; Suggested by Mark A. Hershberger
4512 (defun cperl-outline-level ()
4513 (looking-at outline-regexp)
4514 (cond ((not (match-beginning 1)) 0) ; beginning-of-file
4515 ((match-beginning 2)
4516 (if (eq (char-after (match-beginning 2)) ?p)
4517 0 ; package
4518 1)) ; sub
4519 ((match-beginning 5)
4520 (if (eq (char-after (match-beginning 5)) ?1)
4521 1 ; head1
4522 2)) ; head2
4523 (t 3))) ; should not happen
4526 (defvar cperl-compilation-error-regexp-alist
4527 ;; This look like a paranoiac regexp: could anybody find a better one? (which WORK).
4528 '(("^[^\n]* \\(file\\|at\\) \\([^ \t\n]+\\) [^\n]*line \\([0-9]+\\)[\\., \n]"
4529 2 3))
4530 "Alist that specifies how to match errors in perl output.")
4532 (if (fboundp 'eval-after-load)
4533 (eval-after-load
4534 "mode-compile"
4535 '(setq perl-compilation-error-regexp-alist
4536 cperl-compilation-error-regexp-alist)))
4539 (defun cperl-windowed-init ()
4540 "Initialization under windowed version."
4541 (if (or (featurep 'ps-print) cperl-faces-init)
4542 ;; Need to init anyway:
4543 (or cperl-faces-init (cperl-init-faces))
4544 (add-hook 'font-lock-mode-hook
4545 (function
4546 (lambda ()
4547 (if (memq major-mode '(perl-mode cperl-mode))
4548 (progn
4549 (or cperl-faces-init (cperl-init-faces)))))))
4550 (if (fboundp 'eval-after-load)
4551 (eval-after-load
4552 "ps-print"
4553 '(or cperl-faces-init (cperl-init-faces))))))
4555 (defvar cperl-font-lock-keywords-1 nil
4556 "Additional expressions to highlight in Perl mode. Minimal set.")
4557 (defvar cperl-font-lock-keywords nil
4558 "Additional expressions to highlight in Perl mode. Default set.")
4559 (defvar cperl-font-lock-keywords-2 nil
4560 "Additional expressions to highlight in Perl mode. Maximal set")
4562 (defun cperl-load-font-lock-keywords ()
4563 (or cperl-faces-init (cperl-init-faces))
4564 cperl-font-lock-keywords)
4566 (defun cperl-load-font-lock-keywords-1 ()
4567 (or cperl-faces-init (cperl-init-faces))
4568 cperl-font-lock-keywords-1)
4570 (defun cperl-load-font-lock-keywords-2 ()
4571 (or cperl-faces-init (cperl-init-faces))
4572 cperl-font-lock-keywords-2)
4574 (defun cperl-init-faces-weak ()
4575 ;; Allow `cperl-find-pods-heres' to run.
4576 (or (boundp 'font-lock-constant-face)
4577 (cperl-force-face font-lock-constant-face
4578 "Face for constant and label names")
4579 ;;(setq font-lock-constant-face 'font-lock-constant-face)
4582 (defun cperl-init-faces ()
4583 (condition-case errs
4584 (progn
4585 (require 'font-lock)
4586 (and (fboundp 'font-lock-fontify-anchored-keywords)
4587 (featurep 'font-lock-extra)
4588 (message "You have an obsolete package `font-lock-extra'. Install `choose-color'."))
4589 (let (t-font-lock-keywords t-font-lock-keywords-1 font-lock-anchored)
4590 (if (fboundp 'font-lock-fontify-anchored-keywords)
4591 (setq font-lock-anchored t))
4592 (setq
4593 t-font-lock-keywords
4594 (list
4595 `("[ \t]+$" 0 ',cperl-invalid-face t)
4596 (cons
4597 (concat
4598 "\\(^\\|[^$@%&\\]\\)\\<\\("
4599 (mapconcat
4600 'identity
4601 '("if" "until" "while" "elsif" "else" "unless" "for"
4602 "foreach" "continue" "exit" "die" "last" "goto" "next"
4603 "redo" "return" "local" "exec" "sub" "do" "dump" "use"
4604 "require" "package" "eval" "my" "BEGIN" "END" "CHECK" "INIT")
4605 "\\|") ; Flow control
4606 "\\)\\>") 2) ; was "\\)[ \n\t;():,\|&]"
4607 ; In what follows we use `type' style
4608 ; for overwritable builtins
4609 (list
4610 (concat
4611 "\\(^\\|[^$@%&\\]\\)\\<\\("
4612 ;; "CORE" "__FILE__" "__LINE__" "abs" "accept" "alarm"
4613 ;; "and" "atan2" "bind" "binmode" "bless" "caller"
4614 ;; "chdir" "chmod" "chown" "chr" "chroot" "close"
4615 ;; "closedir" "cmp" "connect" "continue" "cos" "crypt"
4616 ;; "dbmclose" "dbmopen" "die" "dump" "endgrent"
4617 ;; "endhostent" "endnetent" "endprotoent" "endpwent"
4618 ;; "endservent" "eof" "eq" "exec" "exit" "exp" "fcntl"
4619 ;; "fileno" "flock" "fork" "formline" "ge" "getc"
4620 ;; "getgrent" "getgrgid" "getgrnam" "gethostbyaddr"
4621 ;; "gethostbyname" "gethostent" "getlogin"
4622 ;; "getnetbyaddr" "getnetbyname" "getnetent"
4623 ;; "getpeername" "getpgrp" "getppid" "getpriority"
4624 ;; "getprotobyname" "getprotobynumber" "getprotoent"
4625 ;; "getpwent" "getpwnam" "getpwuid" "getservbyname"
4626 ;; "getservbyport" "getservent" "getsockname"
4627 ;; "getsockopt" "glob" "gmtime" "gt" "hex" "index" "int"
4628 ;; "ioctl" "join" "kill" "lc" "lcfirst" "le" "length"
4629 ;; "link" "listen" "localtime" "lock" "log" "lstat" "lt"
4630 ;; "mkdir" "msgctl" "msgget" "msgrcv" "msgsnd" "ne"
4631 ;; "not" "oct" "open" "opendir" "or" "ord" "pack" "pipe"
4632 ;; "quotemeta" "rand" "read" "readdir" "readline"
4633 ;; "readlink" "readpipe" "recv" "ref" "rename" "require"
4634 ;; "reset" "reverse" "rewinddir" "rindex" "rmdir" "seek"
4635 ;; "seekdir" "select" "semctl" "semget" "semop" "send"
4636 ;; "setgrent" "sethostent" "setnetent" "setpgrp"
4637 ;; "setpriority" "setprotoent" "setpwent" "setservent"
4638 ;; "setsockopt" "shmctl" "shmget" "shmread" "shmwrite"
4639 ;; "shutdown" "sin" "sleep" "socket" "socketpair"
4640 ;; "sprintf" "sqrt" "srand" "stat" "substr" "symlink"
4641 ;; "syscall" "sysopen" "sysread" "system" "syswrite" "tell"
4642 ;; "telldir" "time" "times" "truncate" "uc" "ucfirst"
4643 ;; "umask" "unlink" "unpack" "utime" "values" "vec"
4644 ;; "wait" "waitpid" "wantarray" "warn" "write" "x" "xor"
4645 "a\\(bs\\|ccept\\|tan2\\|larm\\|nd\\)\\|"
4646 "b\\(in\\(d\\|mode\\)\\|less\\)\\|"
4647 "c\\(h\\(r\\(\\|oot\\)\\|dir\\|mod\\|own\\)\\|aller\\|rypt\\|"
4648 "lose\\(\\|dir\\)\\|mp\\|o\\(s\\|n\\(tinue\\|nect\\)\\)\\)\\|"
4649 "CORE\\|d\\(ie\\|bm\\(close\\|open\\)\\|ump\\)\\|"
4650 "e\\(x\\(p\\|it\\|ec\\)\\|q\\|nd\\(p\\(rotoent\\|went\\)\\|"
4651 "hostent\\|servent\\|netent\\|grent\\)\\|of\\)\\|"
4652 "f\\(ileno\\|cntl\\|lock\\|or\\(k\\|mline\\)\\)\\|"
4653 "g\\(t\\|lob\\|mtime\\|e\\(\\|t\\(p\\(pid\\|r\\(iority\\|"
4654 "oto\\(byn\\(ame\\|umber\\)\\|ent\\)\\)\\|eername\\|w"
4655 "\\(uid\\|ent\\|nam\\)\\|grp\\)\\|host\\(by\\(addr\\|name\\)\\|"
4656 "ent\\)\\|s\\(erv\\(by\\(port\\|name\\)\\|ent\\)\\|"
4657 "ock\\(name\\|opt\\)\\)\\|c\\|login\\|net\\(by\\(addr\\|name\\)\\|"
4658 "ent\\)\\|gr\\(ent\\|nam\\|gid\\)\\)\\)\\)\\|"
4659 "hex\\|i\\(n\\(t\\|dex\\)\\|octl\\)\\|join\\|kill\\|"
4660 "l\\(i\\(sten\\|nk\\)\\|stat\\|c\\(\\|first\\)\\|t\\|e"
4661 "\\(\\|ngth\\)\\|o\\(c\\(altime\\|k\\)\\|g\\)\\)\\|m\\(sg\\(rcv\\|snd\\|"
4662 "ctl\\|get\\)\\|kdir\\)\\|n\\(e\\|ot\\)\\|o\\(pen\\(\\|dir\\)\\|"
4663 "r\\(\\|d\\)\\|ct\\)\\|p\\(ipe\\|ack\\)\\|quotemeta\\|"
4664 "r\\(index\\|and\\|mdir\\|e\\(quire\\|ad\\(pipe\\|\\|lin"
4665 "\\(k\\|e\\)\\|dir\\)\\|set\\|cv\\|verse\\|f\\|winddir\\|name"
4666 "\\)\\)\\|s\\(printf\\|qrt\\|rand\\|tat\\|ubstr\\|e\\(t\\(p\\(r"
4667 "\\(iority\\|otoent\\)\\|went\\|grp\\)\\|hostent\\|s\\(ervent\\|"
4668 "ockopt\\)\\|netent\\|grent\\)\\|ek\\(\\|dir\\)\\|lect\\|"
4669 "m\\(ctl\\|op\\|get\\)\\|nd\\)\\|h\\(utdown\\|m\\(read\\|ctl\\|"
4670 "write\\|get\\)\\)\\|y\\(s\\(read\\|call\\|open\\|tem\\|write\\)\\|"
4671 "mlink\\)\\|in\\|leep\\|ocket\\(pair\\|\\)\\)\\|t\\(runcate\\|"
4672 "ell\\(\\|dir\\)\\|ime\\(\\|s\\)\\)\\|u\\(c\\(\\|first\\)\\|"
4673 "time\\|mask\\|n\\(pack\\|link\\)\\)\\|v\\(alues\\|ec\\)\\|"
4674 "w\\(a\\(rn\\|it\\(pid\\|\\)\\|ntarray\\)\\|rite\\)\\|"
4675 "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\|PACKAGE__\\)"
4676 "\\)\\>") 2 'font-lock-type-face)
4677 ;; In what follows we use `other' style
4678 ;; for nonoverwritable builtins
4679 ;; Somehow 's', 'm' are not auto-generated???
4680 (list
4681 (concat
4682 "\\(^\\|[^$@%&\\]\\)\\<\\("
4683 ;; "AUTOLOAD" "BEGIN" "CHECK" "DESTROY" "END" "INIT" "__END__" "chomp"
4684 ;; "chop" "defined" "delete" "do" "each" "else" "elsif"
4685 ;; "eval" "exists" "for" "foreach" "format" "goto"
4686 ;; "grep" "if" "keys" "last" "local" "map" "my" "next"
4687 ;; "no" "package" "pop" "pos" "print" "printf" "push"
4688 ;; "q" "qq" "qw" "qx" "redo" "return" "scalar" "shift"
4689 ;; "sort" "splice" "split" "study" "sub" "tie" "tr"
4690 ;; "undef" "unless" "unshift" "untie" "until" "use"
4691 ;; "while" "y"
4692 "AUTOLOAD\\|BEGIN\\|CHECK\\|cho\\(p\\|mp\\)\\|d\\(e\\(fined\\|lete\\)\\|"
4693 "o\\)\\|DESTROY\\|e\\(ach\\|val\\|xists\\|ls\\(e\\|if\\)\\)\\|"
4694 "END\\|for\\(\\|each\\|mat\\)\\|g\\(rep\\|oto\\)\\|INIT\\|if\\|keys\\|"
4695 "l\\(ast\\|ocal\\)\\|m\\(ap\\|y\\)\\|n\\(ext\\|o\\)\\|our\\|"
4696 "p\\(ackage\\|rint\\(\\|f\\)\\|ush\\|o\\(p\\|s\\)\\)\\|"
4697 "q\\(\\|q\\|w\\|x\\|r\\)\\|re\\(turn\\|do\\)\\|s\\(pli\\(ce\\|t\\)\\|"
4698 "calar\\|tudy\\|ub\\|hift\\|ort\\)\\|t\\(r\\|ie\\)\\|"
4699 "u\\(se\\|n\\(shift\\|ti\\(l\\|e\\)\\|def\\|less\\)\\)\\|"
4700 "while\\|y\\|__\\(END\\|DATA\\)__" ;__DATA__ added manually
4701 "\\|[sm]" ; Added manually
4702 "\\)\\>") 2 'cperl-nonoverridable-face)
4703 ;; (mapconcat 'identity
4704 ;; '("#endif" "#else" "#ifdef" "#ifndef" "#if"
4705 ;; "#include" "#define" "#undef")
4706 ;; "\\|")
4707 '("-[rwxoRWXOezsfdlpSbctugkTBMAC]\\>\\([ \t]+_\\>\\)?" 0
4708 font-lock-function-name-face keep) ; Not very good, triggers at "[a-z]"
4709 '("\\<sub[ \t]+\\([^ \t{;()]+\\)[ \t]*\\(([^()]*)[ \t]*\\)?[#{\n]" 1
4710 font-lock-function-name-face)
4711 '("\\<\\(package\\|require\\|use\\|import\\|no\\|bootstrap\\)[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t;]" ; require A if B;
4712 2 font-lock-function-name-face)
4713 '("^[ \t]*format[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t]*=[ \t]*$"
4714 1 font-lock-function-name-face)
4715 (cond ((featurep 'font-lock-extra)
4716 '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
4717 (2 font-lock-string-face t)
4718 (0 '(restart 2 t)))) ; To highlight $a{bc}{ef}
4719 (font-lock-anchored
4720 '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
4721 (2 font-lock-string-face t)
4722 ("\\=[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
4723 nil nil
4724 (1 font-lock-string-face t))))
4725 (t '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
4726 2 font-lock-string-face t)))
4727 '("[\[ \t{,(]\\(-?[a-zA-Z0-9_:]+\\)[ \t]*=>" 1
4728 font-lock-string-face t)
4729 '("^[ \t]*\\([a-zA-Z0-9_]+[ \t]*:\\)[ \t]*\\($\\|{\\|\\<\\(until\\|while\\|for\\(each\\)?\\|do\\)\\>\\)" 1
4730 font-lock-constant-face) ; labels
4731 '("\\<\\(continue\\|next\\|last\\|redo\\|goto\\)\\>[ \t]+\\([a-zA-Z0-9_:]+\\)" ; labels as targets
4732 2 font-lock-constant-face)
4733 ;; Uncomment to get perl-mode-like vars
4734 ;;; '("[$*]{?\\(\\sw+\\)" 1 font-lock-variable-name-face)
4735 ;;; '("\\([@%]\\|\\$#\\)\\(\\sw+\\)"
4736 ;;; (2 (cons font-lock-variable-name-face '(underline))))
4737 (cond ((featurep 'font-lock-extra)
4738 '("^[ \t]*\\(my\\|local\\|our\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
4739 (3 font-lock-variable-name-face)
4740 (4 '(another 4 nil
4741 ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
4742 (1 font-lock-variable-name-face)
4743 (2 '(restart 2 nil) nil t)))
4744 nil t))) ; local variables, multiple
4745 (font-lock-anchored
4746 '("^[ \t{}]*\\(my\\|local\\|our\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
4747 (3 font-lock-variable-name-face)
4748 ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)"
4749 nil nil
4750 (1 font-lock-variable-name-face))))
4751 (t '("^[ \t{}]*\\(my\\|local\\our\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
4752 3 font-lock-variable-name-face)))
4753 '("\\<for\\(each\\)?\\([ \t]+\\(my\\|local\\|our\\)\\)?[ \t]*\\(\\$[a-zA-Z_][a-zA-Z_0-9]*\\)[ \t]*("
4754 4 font-lock-variable-name-face)
4755 ;; Avoid $!, and s!!, qq!! etc. when not fontifying syntaxically
4756 '("\\(?:^\\|[^smywqrx$]\\)\\(!\\)" 1 font-lock-negation-char-face)
4757 '("\\[\\(\\^\\)" 1 font-lock-negation-char-face prepend)))
4758 (setq
4759 t-font-lock-keywords-1
4760 (and (fboundp 'turn-on-font-lock) ; Check for newer font-lock
4761 (not cperl-xemacs-p) ; not yet as of XEmacs 19.12
4763 ("\\(\\([@%]\\|\$#\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)" 1
4764 (if (eq (char-after (match-beginning 2)) ?%)
4765 cperl-hash-face
4766 cperl-array-face)
4767 t) ; arrays and hashes
4768 ("\\(\\([$@]+\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)[ \t]*\\([[{]\\)"
4770 (if (= (- (match-end 2) (match-beginning 2)) 1)
4771 (if (eq (char-after (match-beginning 3)) ?{)
4772 cperl-hash-face
4773 cperl-array-face) ; arrays and hashes
4774 font-lock-variable-name-face) ; Just to put something
4776 ;;("\\([smy]\\|tr\\)\\([^a-z_A-Z0-9]\\)\\(\\([^\n\\]*||\\)\\)\\2")
4777 ;;; Too much noise from \s* @s[ and friends
4778 ;;("\\(\\<\\([msy]\\|tr\\)[ \t]*\\([^ \t\na-zA-Z0-9_]\\)\\|\\(/\\)\\)"
4779 ;;(3 font-lock-function-name-face t t)
4780 ;;(4
4781 ;; (if (cperl-slash-is-regexp)
4782 ;; font-lock-function-name-face 'default) nil t))
4784 (if cperl-highlight-variables-indiscriminately
4785 (setq t-font-lock-keywords-1
4786 (append t-font-lock-keywords-1
4787 (list '("[$*]{?\\(\\sw+\\)" 1
4788 font-lock-variable-name-face)))))
4789 (setq cperl-font-lock-keywords-1
4790 (if cperl-syntaxify-by-font-lock
4791 (cons 'cperl-fontify-update
4792 t-font-lock-keywords)
4793 t-font-lock-keywords)
4794 cperl-font-lock-keywords cperl-font-lock-keywords-1
4795 cperl-font-lock-keywords-2 (append
4796 cperl-font-lock-keywords-1
4797 t-font-lock-keywords-1)))
4798 (if (fboundp 'ps-print-buffer) (cperl-ps-print-init))
4799 (if (or (featurep 'choose-color) (featurep 'font-lock-extra))
4800 (eval ; Avoid a warning
4801 '(font-lock-require-faces
4802 (list
4803 ;; Color-light Color-dark Gray-light Gray-dark Mono
4804 (list 'font-lock-comment-face
4805 ["Firebrick" "OrangeRed" "DimGray" "Gray80"]
4807 [nil nil t t t]
4808 [nil nil t t t]
4809 nil)
4810 (list 'font-lock-string-face
4811 ["RosyBrown" "LightSalmon" "Gray50" "LightGray"]
4814 [nil nil t t t]
4815 nil)
4816 (list 'font-lock-function-name-face
4817 (vector
4818 "Blue" "LightSkyBlue" "Gray50" "LightGray"
4819 (cdr (assq 'background-color ; if mono
4820 (frame-parameters))))
4821 (vector
4822 nil nil nil nil
4823 (cdr (assq 'foreground-color ; if mono
4824 (frame-parameters))))
4825 [nil nil t t t]
4827 nil)
4828 (list 'font-lock-variable-name-face
4829 ["DarkGoldenrod" "LightGoldenrod" "DimGray" "Gray90"]
4831 [nil nil t t t]
4832 [nil nil t t t]
4833 nil)
4834 (list 'font-lock-type-face
4835 ["DarkOliveGreen" "PaleGreen" "DimGray" "Gray80"]
4837 [nil nil t t t]
4839 [nil nil t t t])
4840 (list 'font-lock-constant-face
4841 ["CadetBlue" "Aquamarine" "Gray50" "LightGray"]
4843 [nil nil t t t]
4845 [nil nil t t t])
4846 (list 'cperl-nonoverridable-face
4847 ["chartreuse3" ("orchid1" "orange")
4848 nil "Gray80"]
4849 [nil nil "gray90"]
4850 [nil nil nil t t]
4851 [nil nil t t]
4852 [nil nil t t t])
4853 (list 'cperl-array-face
4854 ["blue" "yellow" nil "Gray80"]
4855 ["lightyellow2" ("navy" "os2blue" "darkgreen")
4856 "gray90"]
4859 nil)
4860 (list 'cperl-hash-face
4861 ["red" "red" nil "Gray80"]
4862 ["lightyellow2" ("navy" "os2blue" "darkgreen")
4863 "gray90"]
4866 nil))))
4867 ;; Do it the dull way, without choose-color
4868 (defvar cperl-guessed-background nil
4869 "Display characteristics as guessed by cperl.")
4870 ;; (or (fboundp 'x-color-defined-p)
4871 ;; (defalias 'x-color-defined-p
4872 ;; (cond ((fboundp 'color-defined-p) 'color-defined-p)
4873 ;; ;; XEmacs >= 19.12
4874 ;; ((fboundp 'valid-color-name-p) 'valid-color-name-p)
4875 ;; ;; XEmacs 19.11
4876 ;; (t 'x-valid-color-name-p))))
4877 (cperl-force-face font-lock-constant-face
4878 "Face for constant and label names")
4879 (cperl-force-face font-lock-variable-name-face
4880 "Face for variable names")
4881 (cperl-force-face font-lock-type-face
4882 "Face for data types")
4883 (cperl-force-face cperl-nonoverridable-face
4884 "Face for data types from another group")
4885 (cperl-force-face font-lock-comment-face
4886 "Face for comments")
4887 (cperl-force-face font-lock-function-name-face
4888 "Face for function names")
4889 (cperl-force-face cperl-hash-face
4890 "Face for hashes")
4891 (cperl-force-face cperl-array-face
4892 "Face for arrays")
4893 ;;(defvar font-lock-constant-face 'font-lock-constant-face)
4894 ;;(defvar font-lock-variable-name-face 'font-lock-variable-name-face)
4895 ;;(or (boundp 'font-lock-type-face)
4896 ;; (defconst font-lock-type-face
4897 ;; 'font-lock-type-face
4898 ;; "Face to use for data types."))
4899 ;;(or (boundp 'cperl-nonoverridable-face)
4900 ;; (defconst cperl-nonoverridable-face
4901 ;; 'cperl-nonoverridable-face
4902 ;; "Face to use for data types from another group."))
4903 ;;(if (not cperl-xemacs-p) nil
4904 ;; (or (boundp 'font-lock-comment-face)
4905 ;; (defconst font-lock-comment-face
4906 ;; 'font-lock-comment-face
4907 ;; "Face to use for comments."))
4908 ;; (or (boundp 'font-lock-keyword-face)
4909 ;; (defconst font-lock-keyword-face
4910 ;; 'font-lock-keyword-face
4911 ;; "Face to use for keywords."))
4912 ;; (or (boundp 'font-lock-function-name-face)
4913 ;; (defconst font-lock-function-name-face
4914 ;; 'font-lock-function-name-face
4915 ;; "Face to use for function names.")))
4916 (if (and
4917 (not (cperl-is-face 'cperl-array-face))
4918 (cperl-is-face 'font-lock-emphasized-face))
4919 (copy-face 'font-lock-emphasized-face 'cperl-array-face))
4920 (if (and
4921 (not (cperl-is-face 'cperl-hash-face))
4922 (cperl-is-face 'font-lock-other-emphasized-face))
4923 (copy-face 'font-lock-other-emphasized-face
4924 'cperl-hash-face))
4925 (if (and
4926 (not (cperl-is-face 'cperl-nonoverridable-face))
4927 (cperl-is-face 'font-lock-other-type-face))
4928 (copy-face 'font-lock-other-type-face
4929 'cperl-nonoverridable-face))
4930 ;;(or (boundp 'cperl-hash-face)
4931 ;; (defconst cperl-hash-face
4932 ;; 'cperl-hash-face
4933 ;; "Face to use for hashes."))
4934 ;;(or (boundp 'cperl-array-face)
4935 ;; (defconst cperl-array-face
4936 ;; 'cperl-array-face
4937 ;; "Face to use for arrays."))
4938 ;; Here we try to guess background
4939 (let ((background
4940 (if (boundp 'font-lock-background-mode)
4941 font-lock-background-mode
4942 'light))
4943 (face-list (and (fboundp 'face-list) (face-list))))
4944 ;;;; (fset 'cperl-is-face
4945 ;;;; (cond ((fboundp 'find-face)
4946 ;;;; (symbol-function 'find-face))
4947 ;;;; (face-list
4948 ;;;; (function (lambda (face) (member face face-list))))
4949 ;;;; (t
4950 ;;;; (function (lambda (face) (boundp face))))))
4951 (defvar cperl-guessed-background
4952 (if (and (boundp 'font-lock-display-type)
4953 (eq font-lock-display-type 'grayscale))
4954 'gray
4955 background)
4956 "Background as guessed by CPerl mode")
4957 (and (not (cperl-is-face 'font-lock-constant-face))
4958 (cperl-is-face 'font-lock-reference-face)
4959 (copy-face 'font-lock-reference-face 'font-lock-constant-face))
4960 (if (cperl-is-face 'font-lock-type-face) nil
4961 (copy-face 'default 'font-lock-type-face)
4962 (cond
4963 ((eq background 'light)
4964 (set-face-foreground 'font-lock-type-face
4965 (if (x-color-defined-p "seagreen")
4966 "seagreen"
4967 "sea green")))
4968 ((eq background 'dark)
4969 (set-face-foreground 'font-lock-type-face
4970 (if (x-color-defined-p "os2pink")
4971 "os2pink"
4972 "pink")))
4974 (set-face-background 'font-lock-type-face "gray90"))))
4975 (if (cperl-is-face 'cperl-nonoverridable-face)
4977 (copy-face 'font-lock-type-face 'cperl-nonoverridable-face)
4978 (cond
4979 ((eq background 'light)
4980 (set-face-foreground 'cperl-nonoverridable-face
4981 (if (x-color-defined-p "chartreuse3")
4982 "chartreuse3"
4983 "chartreuse")))
4984 ((eq background 'dark)
4985 (set-face-foreground 'cperl-nonoverridable-face
4986 (if (x-color-defined-p "orchid1")
4987 "orchid1"
4988 "orange")))))
4989 ;;; (if (cperl-is-face 'font-lock-other-emphasized-face) nil
4990 ;;; (copy-face 'bold-italic 'font-lock-other-emphasized-face)
4991 ;;; (cond
4992 ;;; ((eq background 'light)
4993 ;;; (set-face-background 'font-lock-other-emphasized-face
4994 ;;; (if (x-color-defined-p "lightyellow2")
4995 ;;; "lightyellow2"
4996 ;;; (if (x-color-defined-p "lightyellow")
4997 ;;; "lightyellow"
4998 ;;; "light yellow"))))
4999 ;;; ((eq background 'dark)
5000 ;;; (set-face-background 'font-lock-other-emphasized-face
5001 ;;; (if (x-color-defined-p "navy")
5002 ;;; "navy"
5003 ;;; (if (x-color-defined-p "darkgreen")
5004 ;;; "darkgreen"
5005 ;;; "dark green"))))
5006 ;;; (t (set-face-background 'font-lock-other-emphasized-face "gray90"))))
5007 ;;; (if (cperl-is-face 'font-lock-emphasized-face) nil
5008 ;;; (copy-face 'bold 'font-lock-emphasized-face)
5009 ;;; (cond
5010 ;;; ((eq background 'light)
5011 ;;; (set-face-background 'font-lock-emphasized-face
5012 ;;; (if (x-color-defined-p "lightyellow2")
5013 ;;; "lightyellow2"
5014 ;;; "lightyellow")))
5015 ;;; ((eq background 'dark)
5016 ;;; (set-face-background 'font-lock-emphasized-face
5017 ;;; (if (x-color-defined-p "navy")
5018 ;;; "navy"
5019 ;;; (if (x-color-defined-p "darkgreen")
5020 ;;; "darkgreen"
5021 ;;; "dark green"))))
5022 ;;; (t (set-face-background 'font-lock-emphasized-face "gray90"))))
5023 (if (cperl-is-face 'font-lock-variable-name-face) nil
5024 (copy-face 'italic 'font-lock-variable-name-face))
5025 (if (cperl-is-face 'font-lock-constant-face) nil
5026 (copy-face 'italic 'font-lock-constant-face))))
5027 (setq cperl-faces-init t))
5028 (error (message "cperl-init-faces (ignored): %s" errs))))
5031 (defun cperl-ps-print-init ()
5032 "Initialization of `ps-print' components for faces used in CPerl."
5033 (eval-after-load "ps-print"
5034 '(setq ps-bold-faces
5035 ;; font-lock-variable-name-face
5036 ;; font-lock-constant-face
5037 (append '(cperl-array-face
5038 cperl-hash-face)
5039 ps-bold-faces)
5040 ps-italic-faces
5041 ;; font-lock-constant-face
5042 (append '(cperl-nonoverridable-face
5043 cperl-hash-face)
5044 ps-italic-faces)
5045 ps-underlined-faces
5046 ;; font-lock-type-face
5047 (append '(cperl-array-face
5048 cperl-hash-face
5049 underline
5050 cperl-nonoverridable-face)
5051 ps-underlined-faces))))
5053 (defvar ps-print-face-extension-alist)
5055 (defun cperl-ps-print (&optional file)
5056 "Pretty-print in CPerl style.
5057 If optional argument FILE is an empty string, prints to printer, otherwise
5058 to the file FILE. If FILE is nil, prompts for a file name.
5060 Style of printout regulated by the variable `cperl-ps-print-face-properties'."
5061 (interactive)
5062 (or file
5063 (setq file (read-from-minibuffer
5064 "Print to file (if empty - to printer): "
5065 (concat (buffer-file-name) ".ps")
5066 nil nil 'file-name-history)))
5067 (or (> (length file) 0)
5068 (setq file nil))
5069 (require 'ps-print) ; To get ps-print-face-extension-alist
5070 (let ((ps-print-color-p t)
5071 (ps-print-face-extension-alist ps-print-face-extension-alist))
5072 (cperl-ps-extend-face-list cperl-ps-print-face-properties)
5073 (ps-print-buffer-with-faces file)))
5075 ;;; (defun cperl-ps-print-init ()
5076 ;;; "Initialization of `ps-print' components for faces used in CPerl."
5077 ;;; ;; Guard against old versions
5078 ;;; (defvar ps-underlined-faces nil)
5079 ;;; (defvar ps-bold-faces nil)
5080 ;;; (defvar ps-italic-faces nil)
5081 ;;; (setq ps-bold-faces
5082 ;;; (append '(font-lock-emphasized-face
5083 ;;; cperl-array-face
5084 ;;; font-lock-keyword-face
5085 ;;; font-lock-variable-name-face
5086 ;;; font-lock-constant-face
5087 ;;; font-lock-reference-face
5088 ;;; font-lock-other-emphasized-face
5089 ;;; cperl-hash-face)
5090 ;;; ps-bold-faces))
5091 ;;; (setq ps-italic-faces
5092 ;;; (append '(cperl-nonoverridable-face
5093 ;;; font-lock-constant-face
5094 ;;; font-lock-reference-face
5095 ;;; font-lock-other-emphasized-face
5096 ;;; cperl-hash-face)
5097 ;;; ps-italic-faces))
5098 ;;; (setq ps-underlined-faces
5099 ;;; (append '(font-lock-emphasized-face
5100 ;;; cperl-array-face
5101 ;;; font-lock-other-emphasized-face
5102 ;;; cperl-hash-face
5103 ;;; cperl-nonoverridable-face font-lock-type-face)
5104 ;;; ps-underlined-faces))
5105 ;;; (cons 'font-lock-type-face ps-underlined-faces))
5108 (if (cperl-enable-font-lock) (cperl-windowed-init))
5110 (defconst cperl-styles-entries
5111 '(cperl-indent-level cperl-brace-offset cperl-continued-brace-offset
5112 cperl-label-offset cperl-extra-newline-before-brace
5113 cperl-merge-trailing-else
5114 cperl-continued-statement-offset))
5116 (defconst cperl-style-alist
5117 '(("CPerl" ; =GNU without extra-newline-before-brace
5118 (cperl-indent-level . 2)
5119 (cperl-brace-offset . 0)
5120 (cperl-continued-brace-offset . 0)
5121 (cperl-label-offset . -2)
5122 (cperl-extra-newline-before-brace . nil)
5123 (cperl-merge-trailing-else . t)
5124 (cperl-continued-statement-offset . 2))
5125 ("PerlStyle" ; CPerl with 4 as indent
5126 (cperl-indent-level . 4)
5127 (cperl-brace-offset . 0)
5128 (cperl-continued-brace-offset . 0)
5129 (cperl-label-offset . -4)
5130 (cperl-extra-newline-before-brace . nil)
5131 (cperl-merge-trailing-else . t)
5132 (cperl-continued-statement-offset . 4))
5133 ("GNU"
5134 (cperl-indent-level . 2)
5135 (cperl-brace-offset . 0)
5136 (cperl-continued-brace-offset . 0)
5137 (cperl-label-offset . -2)
5138 (cperl-extra-newline-before-brace . t)
5139 (cperl-merge-trailing-else . nil)
5140 (cperl-continued-statement-offset . 2))
5141 ("K&R"
5142 (cperl-indent-level . 5)
5143 (cperl-brace-offset . 0)
5144 (cperl-continued-brace-offset . -5)
5145 (cperl-label-offset . -5)
5146 ;;(cperl-extra-newline-before-brace . nil) ; ???
5147 (cperl-merge-trailing-else . nil)
5148 (cperl-continued-statement-offset . 5))
5149 ("BSD"
5150 (cperl-indent-level . 4)
5151 (cperl-brace-offset . 0)
5152 (cperl-continued-brace-offset . -4)
5153 (cperl-label-offset . -4)
5154 ;;(cperl-extra-newline-before-brace . nil) ; ???
5155 (cperl-continued-statement-offset . 4))
5156 ("C++"
5157 (cperl-indent-level . 4)
5158 (cperl-brace-offset . 0)
5159 (cperl-continued-brace-offset . -4)
5160 (cperl-label-offset . -4)
5161 (cperl-continued-statement-offset . 4)
5162 (cperl-merge-trailing-else . nil)
5163 (cperl-extra-newline-before-brace . t))
5164 ("Current")
5165 ("Whitesmith"
5166 (cperl-indent-level . 4)
5167 (cperl-brace-offset . 0)
5168 (cperl-continued-brace-offset . 0)
5169 (cperl-label-offset . -4)
5170 ;;(cperl-extra-newline-before-brace . nil) ; ???
5171 (cperl-continued-statement-offset . 4)))
5172 "(Experimental) list of variables to set to get a particular indentation style.
5173 Should be used via `cperl-set-style' or via Perl menu.")
5175 (defun cperl-set-style (style)
5176 "Set CPerl mode variables to use one of several different indentation styles.
5177 The arguments are a string representing the desired style.
5178 The list of styles is in `cperl-style-alist', available styles
5179 are GNU, K&R, BSD, C++ and Whitesmith.
5181 The current value of style is memorized (unless there is a memorized
5182 data already), may be restored by `cperl-set-style-back'.
5184 Chosing \"Current\" style will not change style, so this may be used for
5185 side-effect of memorizing only."
5186 (interactive
5187 (let ((list (mapcar (function (lambda (elt) (list (car elt))))
5188 cperl-style-alist)))
5189 (list (completing-read "Enter style: " list nil 'insist))))
5190 (or cperl-old-style
5191 (setq cperl-old-style
5192 (mapcar (function
5193 (lambda (name)
5194 (cons name (eval name))))
5195 cperl-styles-entries)))
5196 (let ((style (cdr (assoc style cperl-style-alist))) setting str sym)
5197 (while style
5198 (setq setting (car style) style (cdr style))
5199 (set (car setting) (cdr setting)))))
5201 (defun cperl-set-style-back ()
5202 "Restore a style memorised by `cperl-set-style'."
5203 (interactive)
5204 (or cperl-old-style (error "The style was not changed"))
5205 (let (setting)
5206 (while cperl-old-style
5207 (setq setting (car cperl-old-style)
5208 cperl-old-style (cdr cperl-old-style))
5209 (set (car setting) (cdr setting)))))
5211 (defun cperl-check-syntax ()
5212 (interactive)
5213 (require 'mode-compile)
5214 (let ((perl-dbg-flags (concat cperl-extra-perl-args " -wc")))
5215 (eval '(mode-compile)))) ; Avoid a warning
5217 (defun cperl-info-buffer (type)
5218 ;; Returns buffer with documentation. Creates if missing.
5219 ;; If TYPE, this vars buffer.
5220 ;; Special care is taken to not stomp over an existing info buffer
5221 (let* ((bname (if type "*info-perl-var*" "*info-perl*"))
5222 (info (get-buffer bname))
5223 (oldbuf (get-buffer "*info*")))
5224 (if info info
5225 (save-window-excursion
5226 ;; Get Info running
5227 (require 'info)
5228 (cond (oldbuf
5229 (set-buffer oldbuf)
5230 (rename-buffer "*info-perl-tmp*")))
5231 (save-window-excursion
5232 (info))
5233 (Info-find-node cperl-info-page (if type "perlvar" "perlfunc"))
5234 (set-buffer "*info*")
5235 (rename-buffer bname)
5236 (cond (oldbuf
5237 (set-buffer "*info-perl-tmp*")
5238 (rename-buffer "*info*")
5239 (set-buffer bname)))
5240 (make-local-variable 'window-min-height)
5241 (setq window-min-height 2)
5242 (current-buffer)))))
5244 (defun cperl-word-at-point (&optional p)
5245 "Return the word at point or at P."
5246 (save-excursion
5247 (if p (goto-char p))
5248 (or (cperl-word-at-point-hard)
5249 (progn
5250 (require 'etags)
5251 (funcall (or (and (boundp 'find-tag-default-function)
5252 find-tag-default-function)
5253 (get major-mode 'find-tag-default-function)
5254 ;; XEmacs 19.12 has `find-tag-default-hook'; it is
5255 ;; automatically used within `find-tag-default':
5256 'find-tag-default))))))
5258 (defun cperl-info-on-command (command)
5259 "Show documentation for Perl command COMMAND in other window.
5260 If perl-info buffer is shown in some frame, uses this frame.
5261 Customized by setting variables `cperl-shrink-wrap-info-frame',
5262 `cperl-max-help-size'."
5263 (interactive
5264 (let* ((default (cperl-word-at-point))
5265 (read (read-string
5266 (format "Find doc for Perl function (default %s): "
5267 default))))
5268 (list (if (equal read "")
5269 default
5270 read))))
5272 (let ((buffer (current-buffer))
5273 (cmd-desc (concat "^" (regexp-quote command) "[^a-zA-Z_0-9]")) ; "tr///"
5274 pos isvar height iniheight frheight buf win fr1 fr2 iniwin not-loner
5275 max-height char-height buf-list)
5276 (if (string-match "^-[a-zA-Z]$" command)
5277 (setq cmd-desc "^-X[ \t\n]"))
5278 (setq isvar (string-match "^[$@%]" command)
5279 buf (cperl-info-buffer isvar)
5280 iniwin (selected-window)
5281 fr1 (window-frame iniwin))
5282 (set-buffer buf)
5283 (goto-char (point-min))
5284 (or isvar
5285 (progn (re-search-forward "^-X[ \t\n]")
5286 (forward-line -1)))
5287 (if (re-search-forward cmd-desc nil t)
5288 (progn
5289 ;; Go back to beginning of the group (ex, for qq)
5290 (if (re-search-backward "^[ \t\n\f]")
5291 (forward-line 1))
5292 (beginning-of-line)
5293 ;; Get some of
5294 (setq pos (point)
5295 buf-list (list buf "*info-perl-var*" "*info-perl*"))
5296 (while (and (not win) buf-list)
5297 (setq win (get-buffer-window (car buf-list) t))
5298 (setq buf-list (cdr buf-list)))
5299 (or (not win)
5300 (eq (window-buffer win) buf)
5301 (set-window-buffer win buf))
5302 (and win (setq fr2 (window-frame win)))
5303 (if (or (not fr2) (eq fr1 fr2))
5304 (pop-to-buffer buf)
5305 (special-display-popup-frame buf) ; Make it visible
5306 (select-window win))
5307 (goto-char pos) ; Needed (?!).
5308 ;; Resize
5309 (setq iniheight (window-height)
5310 frheight (frame-height)
5311 not-loner (< iniheight (1- frheight))) ; Are not alone
5312 (cond ((if not-loner cperl-max-help-size
5313 cperl-shrink-wrap-info-frame)
5314 (setq height
5315 (+ 2
5316 (count-lines
5318 (save-excursion
5319 (if (re-search-forward
5320 "^[ \t][^\n]*\n+\\([^ \t\n\f]\\|\\'\\)" nil t)
5321 (match-beginning 0) (point-max)))))
5322 max-height
5323 (if not-loner
5324 (/ (* (- frheight 3) cperl-max-help-size) 100)
5325 (setq char-height (frame-char-height))
5326 ;; Non-functioning under OS/2:
5327 (if (eq char-height 1) (setq char-height 18))
5328 ;; Title, menubar, + 2 for slack
5329 (- (/ (x-display-pixel-height) char-height) 4)))
5330 (if (> height max-height) (setq height max-height))
5331 ;;(message "was %s doing %s" iniheight height)
5332 (if not-loner
5333 (enlarge-window (- height iniheight))
5334 (set-frame-height (window-frame win) (1+ height)))))
5335 (set-window-start (selected-window) pos))
5336 (message "No entry for %s found." command))
5337 ;;(pop-to-buffer buffer)
5338 (select-window iniwin)))
5340 (defun cperl-info-on-current-command ()
5341 "Show documentation for Perl command at point in other window."
5342 (interactive)
5343 (cperl-info-on-command (cperl-word-at-point)))
5345 (defun cperl-imenu-info-imenu-search ()
5346 (if (looking-at "^-X[ \t\n]") nil
5347 (re-search-backward
5348 "^\n\\([-a-zA-Z_]+\\)[ \t\n]")
5349 (forward-line 1)))
5351 (defun cperl-imenu-info-imenu-name ()
5352 (buffer-substring
5353 (match-beginning 1) (match-end 1)))
5355 (defun cperl-imenu-on-info ()
5356 (interactive)
5357 (let* ((buffer (current-buffer))
5358 imenu-create-index-function
5359 imenu-prev-index-position-function
5360 imenu-extract-index-name-function
5361 (index-item (save-restriction
5362 (save-window-excursion
5363 (set-buffer (cperl-info-buffer nil))
5364 (setq imenu-create-index-function
5365 'imenu-default-create-index-function
5366 imenu-prev-index-position-function
5367 'cperl-imenu-info-imenu-search
5368 imenu-extract-index-name-function
5369 'cperl-imenu-info-imenu-name)
5370 (imenu-choose-buffer-index)))))
5371 (and index-item
5372 (progn
5373 (push-mark)
5374 (pop-to-buffer "*info-perl*")
5375 (cond
5376 ((markerp (cdr index-item))
5377 (goto-char (marker-position (cdr index-item))))
5379 (goto-char (cdr index-item))))
5380 (set-window-start (selected-window) (point))
5381 (pop-to-buffer buffer)))))
5383 (defun cperl-lineup (beg end &optional step minshift)
5384 "Lineup construction in a region.
5385 Beginning of region should be at the start of a construction.
5386 All first occurrences of this construction in the lines that are
5387 partially contained in the region are lined up at the same column.
5389 MINSHIFT is the minimal amount of space to insert before the construction.
5390 STEP is the tabwidth to position constructions.
5391 If STEP is nil, `cperl-lineup-step' will be used
5392 \(or `cperl-indent-level', if `cperl-lineup-step' is nil).
5393 Will not move the position at the start to the left."
5394 (interactive "r")
5395 (let (search col tcol seen b e)
5396 (save-excursion
5397 (goto-char end)
5398 (end-of-line)
5399 (setq end (point-marker))
5400 (goto-char beg)
5401 (skip-chars-forward " \t\f")
5402 (setq beg (point-marker))
5403 (indent-region beg end nil)
5404 (goto-char beg)
5405 (setq col (current-column))
5406 (if (looking-at "[a-zA-Z0-9_]")
5407 (if (looking-at "\\<[a-zA-Z0-9_]+\\>")
5408 (setq search
5409 (concat "\\<"
5410 (regexp-quote
5411 (buffer-substring (match-beginning 0)
5412 (match-end 0))) "\\>"))
5413 (error "Cannot line up in a middle of the word"))
5414 (if (looking-at "$")
5415 (error "Cannot line up end of line"))
5416 (setq search (regexp-quote (char-to-string (following-char)))))
5417 (setq step (or step cperl-lineup-step cperl-indent-level))
5418 (or minshift (setq minshift 1))
5419 (while (progn
5420 (beginning-of-line 2)
5421 (and (< (point) end)
5422 (re-search-forward search end t)
5423 (goto-char (match-beginning 0))))
5424 (setq tcol (current-column) seen t)
5425 (if (> tcol col) (setq col tcol)))
5426 (or seen
5427 (error "The construction to line up occurred only once"))
5428 (goto-char beg)
5429 (setq col (+ col minshift))
5430 (if (/= (% col step) 0) (setq step (* step (1+ (/ col step)))))
5431 (while
5432 (progn
5433 (setq e (point))
5434 (skip-chars-backward " \t")
5435 (delete-region (point) e)
5436 (indent-to-column col) ;(make-string (- col (current-column)) ?\ ))
5437 (beginning-of-line 2)
5438 (and (< (point) end)
5439 (re-search-forward search end t)
5440 (goto-char (match-beginning 0)))))))) ; No body
5442 (defun cperl-etags (&optional add all files)
5443 "Run etags with appropriate options for Perl files.
5444 If optional argument ALL is `recursive', will process Perl files
5445 in subdirectories too."
5446 (interactive)
5447 (let ((cmd "etags")
5448 (args '("-l" "none" "-r" "/\\<\\(package\\|sub\\)[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)[ \\t]*\\(([^()]*)[ \t]*\\)?\\([{#]\\|$\\)\\)/\\4/"))
5449 res)
5450 (if add (setq args (cons "-a" args)))
5451 (or files (setq files (list buffer-file-name)))
5452 (cond
5453 ((eq all 'recursive)
5454 ;;(error "Not implemented: recursive")
5455 (setq args (append (list "-e"
5456 "sub wanted {push @ARGV, $File::Find::name if /\\.[pP][Llm]$/}
5457 use File::Find;
5458 find(\\&wanted, '.');
5459 exec @ARGV;"
5460 cmd) args)
5461 cmd "perl"))
5462 (all
5463 ;;(error "Not implemented: all")
5464 (setq args (append (list "-e"
5465 "push @ARGV, <*.PL *.pl *.pm>;
5466 exec @ARGV;"
5467 cmd) args)
5468 cmd "perl"))
5470 (setq args (append args files))))
5471 (setq res (apply 'call-process cmd nil nil nil args))
5472 (or (eq res 0)
5473 (message "etags returned \"%s\"" res))))
5475 (defun cperl-toggle-auto-newline ()
5476 "Toggle the state of `cperl-auto-newline'."
5477 (interactive)
5478 (setq cperl-auto-newline (not cperl-auto-newline))
5479 (message "Newlines will %sbe auto-inserted now."
5480 (if cperl-auto-newline "" "not ")))
5482 (defun cperl-toggle-abbrev ()
5483 "Toggle the state of automatic keyword expansion in CPerl mode."
5484 (interactive)
5485 (abbrev-mode (if abbrev-mode 0 1))
5486 (message "Perl control structure will %sbe auto-inserted now."
5487 (if abbrev-mode "" "not ")))
5490 (defun cperl-toggle-electric ()
5491 "Toggle the state of parentheses doubling in CPerl mode."
5492 (interactive)
5493 (setq cperl-electric-parens (if (cperl-val 'cperl-electric-parens) 'null t))
5494 (message "Parentheses will %sbe auto-doubled now."
5495 (if (cperl-val 'cperl-electric-parens) "" "not ")))
5497 (defun cperl-toggle-autohelp ()
5498 "Toggle the state of Auto-Help on Perl constructs (put in the message area).
5499 Delay of auto-help controlled by `cperl-lazy-help-time'."
5500 (interactive)
5501 (if (fboundp 'run-with-idle-timer)
5502 (progn
5503 (if cperl-lazy-installed
5504 (cperl-lazy-unstall)
5505 (cperl-lazy-install))
5506 (message "Perl help messages will %sbe automatically shown now."
5507 (if cperl-lazy-installed "" "not ")))
5508 (message "Cannot automatically show Perl help messages - run-with-idle-timer missing.")))
5510 (defun cperl-toggle-construct-fix ()
5511 "Toggle whether `indent-region'/`indent-sexp' fix whitespace too."
5512 (interactive)
5513 (setq cperl-indent-region-fix-constructs
5514 (if cperl-indent-region-fix-constructs
5517 (message "indent-region/indent-sexp will %sbe automatically fix whitespace."
5518 (if cperl-indent-region-fix-constructs "" "not ")))
5520 ;;;; Tags file creation.
5522 (defvar cperl-tmp-buffer " *cperl-tmp*")
5524 (defun cperl-setup-tmp-buf ()
5525 (set-buffer (get-buffer-create cperl-tmp-buffer))
5526 (set-syntax-table cperl-mode-syntax-table)
5527 (buffer-disable-undo)
5528 (auto-fill-mode 0)
5529 (if cperl-use-syntax-table-text-property-for-tags
5530 (progn
5531 (make-local-variable 'parse-sexp-lookup-properties)
5532 ;; Do not introduce variable if not needed, we check it!
5533 (set 'parse-sexp-lookup-properties t))))
5535 (defun cperl-xsub-scan ()
5536 (require 'imenu)
5537 (let ((index-alist '())
5538 (prev-pos 0) index index1 name package prefix)
5539 (goto-char (point-min))
5540 ;; Search for the function
5541 (progn ;;save-match-data
5542 (while (re-search-forward
5543 "^\\([ \t]*MODULE\\>[^\n]*\\<PACKAGE[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9:]*\\)\\>\\|\\([a-zA-Z_][a-zA-Z_0-9]*\\)(\\|[ \t]*BOOT:\\)"
5544 nil t)
5545 (cond
5546 ((match-beginning 2) ; SECTION
5547 (setq package (buffer-substring (match-beginning 2) (match-end 2)))
5548 (goto-char (match-beginning 0))
5549 (skip-chars-forward " \t")
5550 (forward-char 1)
5551 (if (looking-at "[^\n]*\\<PREFIX[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9]*\\)\\>")
5552 (setq prefix (buffer-substring (match-beginning 1) (match-end 1)))
5553 (setq prefix nil)))
5554 ((not package) nil) ; C language section
5555 ((match-beginning 3) ; XSUB
5556 (goto-char (1+ (match-beginning 3)))
5557 (setq index (imenu-example--name-and-position))
5558 (setq name (buffer-substring (match-beginning 3) (match-end 3)))
5559 (if (and prefix (string-match (concat "^" prefix) name))
5560 (setq name (substring name (length prefix))))
5561 (cond ((string-match "::" name) nil)
5563 (setq index1 (cons (concat package "::" name) (cdr index)))
5564 (push index1 index-alist)))
5565 (setcar index name)
5566 (push index index-alist))
5567 (t ; BOOT: section
5568 ;; (beginning-of-line)
5569 (setq index (imenu-example--name-and-position))
5570 (setcar index (concat package "::BOOT:"))
5571 (push index index-alist)))))
5572 index-alist))
5574 (defvar cperl-unreadable-ok nil)
5576 (defun cperl-find-tags (ifile xs topdir)
5577 (let ((b (get-buffer cperl-tmp-buffer)) ind lst elt pos ret rel
5578 (cperl-pod-here-fontify nil) f file)
5579 (save-excursion
5580 (if b (set-buffer b)
5581 (cperl-setup-tmp-buf))
5582 (erase-buffer)
5583 (condition-case err
5584 (setq file (car (insert-file-contents ifile)))
5585 (error (if cperl-unreadable-ok nil
5586 (if (y-or-n-p
5587 (format "File %s unreadable. Continue? " ifile))
5588 (setq cperl-unreadable-ok t)
5589 (error "Aborting: unreadable file %s" ifile)))))
5590 (if (not file)
5591 (message "Unreadable file %s" ifile)
5592 (message "Scanning file %s ..." file)
5593 (if (and cperl-use-syntax-table-text-property-for-tags
5594 (not xs))
5595 (condition-case err ; after __END__ may have garbage
5596 (cperl-find-pods-heres nil nil noninteractive)
5597 (error (message "While scanning for syntax: %s" err))))
5598 (if xs
5599 (setq lst (cperl-xsub-scan))
5600 (setq ind (cperl-imenu--create-perl-index))
5601 (setq lst (cdr (assoc "+Unsorted List+..." ind))))
5602 (setq lst
5603 (mapcar
5604 (function
5605 (lambda (elt)
5606 (cond ((string-match "^[_a-zA-Z]" (car elt))
5607 (goto-char (cdr elt))
5608 (beginning-of-line) ; pos should be of the start of the line
5609 (list (car elt)
5610 (point)
5611 (1+ (count-lines 1 (point))) ; 1+ since at beg-o-l
5612 (buffer-substring (progn
5613 (goto-char (cdr elt))
5614 ;; After name now...
5615 (or (eolp) (forward-char 1))
5616 (point))
5617 (progn
5618 (beginning-of-line)
5619 (point))))))))
5620 lst))
5621 (erase-buffer)
5622 (while lst
5623 (setq elt (car lst) lst (cdr lst))
5624 (if elt
5625 (progn
5626 (insert (elt elt 3)
5628 (if (string-match "^package " (car elt))
5629 (substring (car elt) 8)
5630 (car elt) )
5632 (number-to-string (elt elt 2)) ; Line
5634 (number-to-string (1- (elt elt 1))) ; Char pos 0-based
5635 "\n")
5636 (if (and (string-match "^[_a-zA-Z]+::" (car elt))
5637 (string-match "^sub[ \t]+\\([_a-zA-Z]+\\)[^:_a-zA-Z]"
5638 (elt elt 3)))
5639 ;; Need to insert the name without package as well
5640 (setq lst (cons (cons (substring (elt elt 3)
5641 (match-beginning 1)
5642 (match-end 1))
5643 (cdr elt))
5644 lst))))))
5645 (setq pos (point))
5646 (goto-char 1)
5647 (setq rel file)
5648 ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
5649 (set-text-properties 0 (length rel) nil rel)
5650 (and (equal topdir (substring rel 0 (length topdir)))
5651 (setq rel (substring file (length topdir))))
5652 (insert "\f\n" rel "," (number-to-string (1- pos)) "\n")
5653 (setq ret (buffer-substring 1 (point-max)))
5654 (erase-buffer)
5655 (or noninteractive
5656 (message "Scanning file %s finished" file))
5657 ret))))
5659 (defun cperl-add-tags-recurse-noxs ()
5660 "Add to TAGS data for Perl and XSUB files in the current directory and kids.
5661 Use as
5662 emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
5663 -f cperl-add-tags-recurse
5665 (cperl-write-tags nil nil t t nil t))
5667 (defun cperl-add-tags-recurse ()
5668 "Add to TAGS file data for Perl files in the current directory and kids.
5669 Use as
5670 emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
5671 -f cperl-add-tags-recurse
5673 (cperl-write-tags nil nil t t))
5675 (defun cperl-write-tags (&optional file erase recurse dir inbuffer noxs topdir)
5676 ;; If INBUFFER, do not select buffer, and do not save
5677 ;; If ERASE is `ignore', do not erase, and do not try to delete old info.
5678 (require 'etags)
5679 (if file nil
5680 (setq file (if dir default-directory (buffer-file-name)))
5681 (if (and (not dir) (buffer-modified-p)) (error "Save buffer first!")))
5682 (or topdir
5683 (setq topdir default-directory))
5684 (let ((tags-file-name "TAGS")
5685 (case-fold-search (eq system-type 'emx))
5686 xs rel tm)
5687 (save-excursion
5688 (cond (inbuffer nil) ; Already there
5689 ((file-exists-p tags-file-name)
5690 (if cperl-xemacs-p
5691 (visit-tags-table-buffer)
5692 (visit-tags-table-buffer tags-file-name)))
5693 (t (set-buffer (find-file-noselect tags-file-name))))
5694 (cond
5695 (dir
5696 (cond ((eq erase 'ignore))
5697 (erase
5698 (erase-buffer)
5699 (setq erase 'ignore)))
5700 (let ((files
5701 (condition-case err
5702 (directory-files file t
5703 (if recurse nil cperl-scan-files-regexp)
5705 (error
5706 (if cperl-unreadable-ok nil
5707 (if (y-or-n-p
5708 (format "Directory %s unreadable. Continue? " file))
5709 (setq cperl-unreadable-ok t
5710 tm nil) ; Return empty list
5711 (error "Aborting: unreadable directory %s" file)))))))
5712 (mapcar (function
5713 (lambda (file)
5714 (cond
5715 ((string-match cperl-noscan-files-regexp file)
5716 nil)
5717 ((not (file-directory-p file))
5718 (if (string-match cperl-scan-files-regexp file)
5719 (cperl-write-tags file erase recurse nil t noxs topdir)))
5720 ((not recurse) nil)
5721 (t (cperl-write-tags file erase recurse t t noxs topdir)))))
5722 files)))
5724 (setq xs (string-match "\\.xs$" file))
5725 (if (not (and xs noxs))
5726 (progn
5727 (cond ((eq erase 'ignore) (goto-char (point-max)))
5728 (erase (erase-buffer))
5730 (goto-char 1)
5731 (setq rel file)
5732 ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
5733 (set-text-properties 0 (length rel) nil rel)
5734 (and (equal topdir (substring rel 0 (length topdir)))
5735 (setq rel (substring file (length topdir))))
5736 (if (search-forward (concat "\f\n" rel ",") nil t)
5737 (progn
5738 (search-backward "\f\n")
5739 (delete-region (point)
5740 (save-excursion
5741 (forward-char 1)
5742 (if (search-forward "\f\n"
5743 nil 'toend)
5744 (- (point) 2)
5745 (point-max)))))
5746 (goto-char (point-max)))))
5747 (insert (cperl-find-tags file xs topdir))))))
5748 (if inbuffer nil ; Delegate to the caller
5749 (save-buffer 0) ; No backup
5750 (if (fboundp 'initialize-new-tags-table) ; Do we need something special in XEmacs?
5751 (initialize-new-tags-table))))))
5753 (defvar cperl-tags-hier-regexp-list
5754 (concat
5755 "^\\("
5756 "\\(package\\)\\>"
5757 "\\|"
5758 "sub\\>[^\n]+::"
5759 "\\|"
5760 "[a-zA-Z_][a-zA-Z_0-9:]*(\C-?[^\n]+::" ; XSUB?
5761 "\\|"
5762 "[ \t]*BOOT:\C-?[^\n]+::" ; BOOT section
5763 "\\)"))
5765 (defvar cperl-hierarchy '(() ())
5766 "Global hierarchy of classes.")
5768 (defun cperl-tags-hier-fill ()
5769 ;; Suppose we are in a tag table cooked by cperl.
5770 (goto-char 1)
5771 (let (type pack name pos line chunk ord cons1 file str info fileind)
5772 (while (re-search-forward cperl-tags-hier-regexp-list nil t)
5773 (setq pos (match-beginning 0)
5774 pack (match-beginning 2))
5775 (beginning-of-line)
5776 (if (looking-at (concat
5777 "\\([^\n]+\\)"
5778 "\C-?"
5779 "\\([^\n]+\\)"
5780 "\C-a"
5781 "\\([0-9]+\\)"
5783 "\\([0-9]+\\)"))
5784 (progn
5785 (setq ;;str (buffer-substring (match-beginning 1) (match-end 1))
5786 name (buffer-substring (match-beginning 2) (match-end 2))
5787 ;;pos (buffer-substring (match-beginning 3) (match-end 3))
5788 line (buffer-substring (match-beginning 3) (match-end 3))
5789 ord (if pack 1 0)
5790 file (file-of-tag)
5791 fileind (format "%s:%s" file line)
5792 ;; Moves to beginning of the next line:
5793 info (cperl-etags-snarf-tag file line))
5794 ;; Move back
5795 (forward-char -1)
5796 ;; Make new member of hierarchy name ==> file ==> pos if needed
5797 (if (setq cons1 (assoc name (nth ord cperl-hierarchy)))
5798 ;; Name known
5799 (setcdr cons1 (cons (cons fileind (vector file info))
5800 (cdr cons1)))
5801 ;; First occurrence of the name, start alist
5802 (setq cons1 (cons name (list (cons fileind (vector file info)))))
5803 (if pack
5804 (setcar (cdr cperl-hierarchy)
5805 (cons cons1 (nth 1 cperl-hierarchy)))
5806 (setcar cperl-hierarchy
5807 (cons cons1 (car cperl-hierarchy)))))))
5808 (end-of-line))))
5810 (defun cperl-tags-hier-init (&optional update)
5811 "Show hierarchical menu of classes and methods.
5812 Finds info about classes by a scan of loaded TAGS files.
5813 Supposes that the TAGS files contain fully qualified function names.
5814 One may build such TAGS files from CPerl mode menu."
5815 (interactive)
5816 (require 'etags)
5817 (require 'imenu)
5818 (if (or update (null (nth 2 cperl-hierarchy)))
5819 (let ((remover (function (lambda (elt) ; (name (file1...) (file2..))
5820 (or (nthcdr 2 elt)
5821 ;; Only in one file
5822 (setcdr elt (cdr (nth 1 elt)))))))
5823 pack name cons1 to l1 l2 l3 l4 b)
5824 ;; (setq cperl-hierarchy '(() () ())) ; Would write into '() later!
5825 (setq cperl-hierarchy (list l1 l2 l3))
5826 (if cperl-xemacs-p ; Not checked
5827 (progn
5828 (or tags-file-name
5829 ;; Does this work in XEmacs?
5830 (call-interactively 'visit-tags-table))
5831 (message "Updating list of classes...")
5832 (set-buffer (get-file-buffer tags-file-name))
5833 (cperl-tags-hier-fill))
5834 (or tags-table-list
5835 (call-interactively 'visit-tags-table))
5836 (mapcar
5837 (function
5838 (lambda (tagsfile)
5839 (message "Updating list of classes... %s" tagsfile)
5840 (set-buffer (get-file-buffer tagsfile))
5841 (cperl-tags-hier-fill)))
5842 tags-table-list)
5843 (message "Updating list of classes... postprocessing..."))
5844 (mapcar remover (car cperl-hierarchy))
5845 (mapcar remover (nth 1 cperl-hierarchy))
5846 (setq to (list nil (cons "Packages: " (nth 1 cperl-hierarchy))
5847 (cons "Methods: " (car cperl-hierarchy))))
5848 (cperl-tags-treeify to 1)
5849 (setcar (nthcdr 2 cperl-hierarchy)
5850 (cperl-menu-to-keymap (cons '("+++UPDATE+++" . -999) (cdr to))))
5851 (message "Updating list of classes: done, requesting display...")
5852 ;;(cperl-imenu-addback (nth 2 cperl-hierarchy))
5854 (or (nth 2 cperl-hierarchy)
5855 (error "No items found"))
5856 (setq update
5857 ;;; (imenu-choose-buffer-index "Packages: " (nth 2 cperl-hierarchy))
5858 (if (if (fboundp 'display-popup-menus-p)
5859 (let ((f 'display-popup-menus-p))
5860 (funcall f))
5861 window-system)
5862 (x-popup-menu t (nth 2 cperl-hierarchy))
5863 (require 'tmm)
5864 (tmm-prompt (nth 2 cperl-hierarchy))))
5865 (if (and update (listp update))
5866 (progn (while (cdr update) (setq update (cdr update)))
5867 (setq update (car update)))) ; Get the last from the list
5868 (if (vectorp update)
5869 (progn
5870 (find-file (elt update 0))
5871 (cperl-etags-goto-tag-location (elt update 1))))
5872 (if (eq update -999) (cperl-tags-hier-init t)))
5874 (defun cperl-tags-treeify (to level)
5875 ;; cadr of `to' is read-write. On start it is a cons
5876 (let* ((regexp (concat "^\\(" (mapconcat
5877 'identity
5878 (make-list level "[_a-zA-Z0-9]+")
5879 "::")
5880 "\\)\\(::\\)?"))
5881 (packages (cdr (nth 1 to)))
5882 (methods (cdr (nth 2 to)))
5883 l1 head tail cons1 cons2 ord writeto packs recurse
5884 root-packages root-functions ms many_ms same_name ps
5885 (move-deeper
5886 (function
5887 (lambda (elt)
5888 (cond ((and (string-match regexp (car elt))
5889 (or (eq ord 1) (match-end 2)))
5890 (setq head (substring (car elt) 0 (match-end 1))
5891 tail (if (match-end 2) (substring (car elt)
5892 (match-end 2)))
5893 recurse t)
5894 (if (setq cons1 (assoc head writeto)) nil
5895 ;; Need to init new head
5896 (setcdr writeto (cons (list head (list "Packages: ")
5897 (list "Methods: "))
5898 (cdr writeto)))
5899 (setq cons1 (nth 1 writeto)))
5900 (setq cons2 (nth ord cons1)) ; Either packs or meths
5901 (setcdr cons2 (cons elt (cdr cons2))))
5902 ((eq ord 2)
5903 (setq root-functions (cons elt root-functions)))
5905 (setq root-packages (cons elt root-packages))))))))
5906 (setcdr to l1) ; Init to dynamic space
5907 (setq writeto to)
5908 (setq ord 1)
5909 (mapcar move-deeper packages)
5910 (setq ord 2)
5911 (mapcar move-deeper methods)
5912 (if recurse
5913 (mapcar (function (lambda (elt)
5914 (cperl-tags-treeify elt (1+ level))))
5915 (cdr to)))
5916 ;;Now clean up leaders with one child only
5917 (mapcar (function (lambda (elt)
5918 (if (not (and (listp (cdr elt))
5919 (eq (length elt) 2))) nil
5920 (setcar elt (car (nth 1 elt)))
5921 (setcdr elt (cdr (nth 1 elt))))))
5922 (cdr to))
5923 ;; Sort the roots of subtrees
5924 (if (default-value 'imenu-sort-function)
5925 (setcdr to
5926 (sort (cdr to) (default-value 'imenu-sort-function))))
5927 ;; Now add back functions removed from display
5928 (mapcar (function (lambda (elt)
5929 (setcdr to (cons elt (cdr to)))))
5930 (if (default-value 'imenu-sort-function)
5931 (nreverse
5932 (sort root-functions (default-value 'imenu-sort-function)))
5933 root-functions))
5934 ;; Now add back packages removed from display
5935 (mapcar (function (lambda (elt)
5936 (setcdr to (cons (cons (concat "package " (car elt))
5937 (cdr elt))
5938 (cdr to)))))
5939 (if (default-value 'imenu-sort-function)
5940 (nreverse
5941 (sort root-packages (default-value 'imenu-sort-function)))
5942 root-packages))))
5944 ;;;(x-popup-menu t
5945 ;;; '(keymap "Name1"
5946 ;;; ("Ret1" "aa")
5947 ;;; ("Head1" "ab"
5948 ;;; keymap "Name2"
5949 ;;; ("Tail1" "x") ("Tail2" "y"))))
5951 (defun cperl-list-fold (list name limit)
5952 (let (list1 list2 elt1 (num 0))
5953 (if (<= (length list) limit) list
5954 (setq list1 nil list2 nil)
5955 (while list
5956 (setq num (1+ num)
5957 elt1 (car list)
5958 list (cdr list))
5959 (if (<= num imenu-max-items)
5960 (setq list2 (cons elt1 list2))
5961 (setq list1 (cons (cons name
5962 (nreverse list2))
5963 list1)
5964 list2 (list elt1)
5965 num 1)))
5966 (nreverse (cons (cons name
5967 (nreverse list2))
5968 list1)))))
5970 (defun cperl-menu-to-keymap (menu &optional name)
5971 (let (list)
5972 (cons 'keymap
5973 (mapcar
5974 (function
5975 (lambda (elt)
5976 (cond ((listp (cdr elt))
5977 (setq list (cperl-list-fold
5978 (cdr elt) (car elt) imenu-max-items))
5979 (cons nil
5980 (cons (car elt)
5981 (cperl-menu-to-keymap list))))
5983 (list (cdr elt) (car elt) t))))) ; t is needed in 19.34
5984 (cperl-list-fold menu "Root" imenu-max-items)))))
5987 (defvar cperl-bad-style-regexp
5988 (mapconcat 'identity
5989 '("[^-\n\t <>=+!.&|(*/'`\"#^][-=+<>!|&^]" ; char sign
5990 "[-<>=+^&|]+[^- \t\n=+<>~]") ; sign+ char
5991 "\\|")
5992 "Finds places such that insertion of a whitespace may help a lot.")
5994 (defvar cperl-not-bad-style-regexp
5995 (mapconcat
5996 'identity
5997 '("[^-\t <>=+]\\(--\\|\\+\\+\\)" ; var-- var++
5998 "[a-zA-Z0-9_][|&][a-zA-Z0-9_$]" ; abc|def abc&def are often used.
5999 "&[(a-zA-Z0-9_$]" ; &subroutine &(var->field)
6000 "<\\$?\\sw+\\(\\.\\sw+\\)?>" ; <IN> <stdin.h>
6001 "-[a-zA-Z][ \t]+[_$\"'`a-zA-Z]" ; -f file, -t STDIN
6002 "-[0-9]" ; -5
6003 "\\+\\+" ; ++var
6004 "--" ; --var
6005 ".->" ; a->b
6006 "->" ; a SPACE ->b
6007 "\\[-" ; a[-1]
6008 "\\\\[&$@*\\\\]" ; \&func
6009 "^=" ; =head
6010 "\\$." ; $|
6011 "<<[a-zA-Z_'\"`]" ; <<FOO, <<'FOO'
6012 "||"
6013 "&&"
6014 "[CBIXSLFZ]<\\(\\sw\\|\\s \\|\\s_\\|[\n]\\)*>" ; C<code like text>
6015 "-[a-zA-Z_0-9]+[ \t]*=>" ; -option => value
6016 ;; Unaddressed trouble spots: = -abc, f(56, -abc) --- specialcased below
6017 ;;"[*/+-|&<.]+="
6019 "\\|")
6020 "If matches at the start of match found by `my-bad-c-style-regexp',
6021 insertion of a whitespace will not help.")
6023 (defvar found-bad)
6025 (defun cperl-find-bad-style ()
6026 "Find places in the buffer where insertion of a whitespace may help.
6027 Prompts user for insertion of spaces.
6028 Currently it is tuned to C and Perl syntax."
6029 (interactive)
6030 (let (found-bad (p (point)))
6031 (setq last-nonmenu-event 13) ; To disable popup
6032 (with-no-warnings ; It is useful to push the mark here.
6033 (beginning-of-buffer))
6034 (map-y-or-n-p "Insert space here? "
6035 (lambda (arg) (insert " "))
6036 'cperl-next-bad-style
6037 '("location" "locations" "insert a space into")
6038 '((?\C-r (lambda (arg)
6039 (let ((buffer-quit-function
6040 'exit-recursive-edit))
6041 (message "Exit with Esc Esc")
6042 (recursive-edit)
6043 t)) ; Consider acted upon
6044 "edit, exit with Esc Esc")
6045 (?e (lambda (arg)
6046 (let ((buffer-quit-function
6047 'exit-recursive-edit))
6048 (message "Exit with Esc Esc")
6049 (recursive-edit)
6050 t)) ; Consider acted upon
6051 "edit, exit with Esc Esc"))
6053 (if found-bad (goto-char found-bad)
6054 (goto-char p)
6055 (message "No appropriate place found"))))
6057 (defun cperl-next-bad-style ()
6058 (let (p (not-found t) (point (point)) found)
6059 (while (and not-found
6060 (re-search-forward cperl-bad-style-regexp nil 'to-end))
6061 (setq p (point))
6062 (goto-char (match-beginning 0))
6063 (if (or
6064 (looking-at cperl-not-bad-style-regexp)
6065 ;; Check for a < -b and friends
6066 (and (eq (following-char) ?\-)
6067 (save-excursion
6068 (skip-chars-backward " \t\n")
6069 (memq (preceding-char) '(?\= ?\> ?\< ?\, ?\( ?\[ ?\{))))
6070 ;; Now check for syntax type
6071 (save-match-data
6072 (setq found (point))
6073 (beginning-of-defun)
6074 (let ((pps (parse-partial-sexp (point) found)))
6075 (or (nth 3 pps) (nth 4 pps) (nth 5 pps)))))
6076 (goto-char (match-end 0))
6077 (goto-char (1- p))
6078 (setq not-found nil
6079 found-bad found)))
6080 (not not-found)))
6083 ;;; Getting help
6084 (defvar cperl-have-help-regexp
6085 ;;(concat "\\("
6086 (mapconcat
6087 'identity
6088 '("[$@%*&][0-9a-zA-Z_:]+\\([ \t]*[[{]\\)?" ; Usual variable
6089 "[$@]\\^[a-zA-Z]" ; Special variable
6090 "[$@][^ \n\t]" ; Special variable
6091 "-[a-zA-Z]" ; File test
6092 "\\\\[a-zA-Z0]" ; Special chars
6093 "^=[a-z][a-zA-Z0-9_]*" ; POD sections
6094 "[-!&*+,-./<=>?\\\\^|~]+" ; Operator
6095 "[a-zA-Z_0-9:]+" ; symbol or number
6096 "x="
6097 "#!")
6098 ;;"\\)\\|\\("
6099 "\\|")
6100 ;;"\\)"
6102 "Matches places in the buffer we can find help for.")
6104 (defvar cperl-message-on-help-error t)
6105 (defvar cperl-help-from-timer nil)
6107 (defun cperl-word-at-point-hard ()
6108 ;; Does not save-excursion
6109 ;; Get to the something meaningful
6110 (or (eobp) (eolp) (forward-char 1))
6111 (re-search-backward "[-a-zA-Z0-9_:!&*+,-./<=>?\\\\^|~$%@]"
6112 (save-excursion (beginning-of-line) (point))
6113 'to-beg)
6114 ;; (cond
6115 ;; ((or (eobp) (looking-at "[][ \t\n{}();,]")) ; Not at a symbol
6116 ;; (skip-chars-backward " \n\t\r({[]});,")
6117 ;; (or (bobp) (backward-char 1))))
6118 ;; Try to backtrace
6119 (cond
6120 ((looking-at "[a-zA-Z0-9_:]") ; symbol
6121 (skip-chars-backward "a-zA-Z0-9_:")
6122 (cond
6123 ((and (eq (preceding-char) ?^) ; $^I
6124 (eq (char-after (- (point) 2)) ?\$))
6125 (forward-char -2))
6126 ((memq (preceding-char) (append "*$@%&\\" nil)) ; *glob
6127 (forward-char -1))
6128 ((and (eq (preceding-char) ?\=)
6129 (eq (current-column) 1))
6130 (forward-char -1))) ; =head1
6131 (if (and (eq (preceding-char) ?\<)
6132 (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <FH>
6133 (forward-char -1)))
6134 ((and (looking-at "=") (eq (preceding-char) ?x)) ; x=
6135 (forward-char -1))
6136 ((and (looking-at "\\^") (eq (preceding-char) ?\$)) ; $^I
6137 (forward-char -1))
6138 ((looking-at "[-!&*+,-./<=>?\\\\^|~]")
6139 (skip-chars-backward "-!&*+,-./<=>?\\\\^|~")
6140 (cond
6141 ((and (eq (preceding-char) ?\$)
6142 (not (eq (char-after (- (point) 2)) ?\$))) ; $-
6143 (forward-char -1))
6144 ((and (eq (following-char) ?\>)
6145 (string-match "[a-zA-Z0-9_]" (char-to-string (preceding-char)))
6146 (save-excursion
6147 (forward-sexp -1)
6148 (and (eq (preceding-char) ?\<)
6149 (looking-at "\\$?[a-zA-Z0-9_:]+>")))) ; <FH>
6150 (search-backward "<"))))
6151 ((and (eq (following-char) ?\$)
6152 (eq (preceding-char) ?\<)
6153 (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <$fh>
6154 (forward-char -1)))
6155 (if (looking-at cperl-have-help-regexp)
6156 (buffer-substring (match-beginning 0) (match-end 0))))
6158 (defun cperl-get-help ()
6159 "Get one-line docs on the symbol at the point.
6160 The data for these docs is a little bit obsolete and may be in fact longer
6161 than a line. Your contribution to update/shorten it is appreciated."
6162 (interactive)
6163 (save-match-data ; May be called "inside" query-replace
6164 (save-excursion
6165 (let ((word (cperl-word-at-point-hard)))
6166 (if word
6167 (if (and cperl-help-from-timer ; Bail out if not in mainland
6168 (not (string-match "^#!\\|\\\\\\|^=" word)) ; Show help even in comments/strings.
6169 (or (memq (get-text-property (point) 'face)
6170 '(font-lock-comment-face font-lock-string-face))
6171 (memq (get-text-property (point) 'syntax-type)
6172 '(pod here-doc format))))
6174 (cperl-describe-perl-symbol word))
6175 (if cperl-message-on-help-error
6176 (message "Nothing found for %s..."
6177 (buffer-substring (point) (min (+ 5 (point)) (point-max))))))))))
6179 ;;; Stolen from perl-descr.el by Johan Vromans:
6181 (defvar cperl-doc-buffer " *perl-doc*"
6182 "Where the documentation can be found.")
6184 (defun cperl-describe-perl-symbol (val)
6185 "Display the documentation of symbol at point, a Perl operator."
6186 (let ((enable-recursive-minibuffers t)
6187 args-file regexp)
6188 (cond
6189 ((string-match "^[&*][a-zA-Z_]" val)
6190 (setq val (concat (substring val 0 1) "NAME")))
6191 ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*\\[" val)
6192 (setq val (concat "@" (substring val 1 (match-end 1)))))
6193 ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*{" val)
6194 (setq val (concat "%" (substring val 1 (match-end 1)))))
6195 ((and (string= val "x") (string-match "^x=" val))
6196 (setq val "x="))
6197 ((string-match "^\\$[\C-a-\C-z]" val)
6198 (setq val (concat "$^" (char-to-string (+ ?A -1 (aref val 1))))))
6199 ((string-match "^CORE::" val)
6200 (setq val "CORE::"))
6201 ((string-match "^SUPER::" val)
6202 (setq val "SUPER::"))
6203 ((and (string= "<" val) (string-match "^<\\$?[a-zA-Z0-9_:]+>" val))
6204 (setq val "<NAME>")))
6205 (setq regexp (concat "^"
6206 "\\([^a-zA-Z0-9_:]+[ \t]+\\)?"
6207 (regexp-quote val)
6208 "\\([ \t([/]\\|$\\)"))
6210 ;; get the buffer with the documentation text
6211 (cperl-switch-to-doc-buffer)
6213 ;; lookup in the doc
6214 (goto-char (point-min))
6215 (let ((case-fold-search nil))
6216 (list
6217 (if (re-search-forward regexp (point-max) t)
6218 (save-excursion
6219 (beginning-of-line 1)
6220 (let ((lnstart (point)))
6221 (end-of-line)
6222 (message "%s" (buffer-substring lnstart (point)))))
6223 (if cperl-message-on-help-error
6224 (message "No definition for %s" val)))))))
6226 (defvar cperl-short-docs 'please-ignore-this-line
6227 ;; Perl4 version was written by Johan Vromans (jvromans@squirrel.nl)
6228 "# based on '@(#)@ perl-descr.el 1.9 - describe-perl-symbol' [Perl 5]
6229 ... Range (list context); flip/flop [no flop when flip] (scalar context).
6230 ! ... Logical negation.
6231 ... != ... Numeric inequality.
6232 ... !~ ... Search pattern, substitution, or translation (negated).
6233 $! In numeric context: errno. In a string context: error string.
6234 $\" The separator which joins elements of arrays interpolated in strings.
6235 $# The output format for printed numbers. Default is %.15g or close.
6236 $$ Process number of this script. Changes in the fork()ed child process.
6237 $% The current page number of the currently selected output channel.
6239 The following variables are always local to the current block:
6241 $1 Match of the 1st set of parentheses in the last match (auto-local).
6242 $2 Match of the 2nd set of parentheses in the last match (auto-local).
6243 $3 Match of the 3rd set of parentheses in the last match (auto-local).
6244 $4 Match of the 4th set of parentheses in the last match (auto-local).
6245 $5 Match of the 5th set of parentheses in the last match (auto-local).
6246 $6 Match of the 6th set of parentheses in the last match (auto-local).
6247 $7 Match of the 7th set of parentheses in the last match (auto-local).
6248 $8 Match of the 8th set of parentheses in the last match (auto-local).
6249 $9 Match of the 9th set of parentheses in the last match (auto-local).
6250 $& The string matched by the last pattern match (auto-local).
6251 $' The string after what was matched by the last match (auto-local).
6252 $` The string before what was matched by the last match (auto-local).
6254 $( The real gid of this process.
6255 $) The effective gid of this process.
6256 $* Deprecated: Set to 1 to do multiline matching within a string.
6257 $+ The last bracket matched by the last search pattern.
6258 $, The output field separator for the print operator.
6259 $- The number of lines left on the page.
6260 $. The current input line number of the last filehandle that was read.
6261 $/ The input record separator, newline by default.
6262 $0 Name of the file containing the current perl script (read/write).
6263 $: String may be broken after these characters to fill ^-lines in a format.
6264 $; Subscript separator for multi-dim array emulation. Default \"\\034\".
6265 $< The real uid of this process.
6266 $= The page length of the current output channel. Default is 60 lines.
6267 $> The effective uid of this process.
6268 $? The status returned by the last ``, pipe close or `system'.
6269 $@ The perl error message from the last eval or do @var{EXPR} command.
6270 $ARGV The name of the current file used with <> .
6271 $[ Deprecated: The index of the first element/char in an array/string.
6272 $\\ The output record separator for the print operator.
6273 $] The perl version string as displayed with perl -v.
6274 $^ The name of the current top-of-page format.
6275 $^A The current value of the write() accumulator for format() lines.
6276 $^D The value of the perl debug (-D) flags.
6277 $^E Information about the last system error other than that provided by $!.
6278 $^F The highest system file descriptor, ordinarily 2.
6279 $^H The current set of syntax checks enabled by `use strict'.
6280 $^I The value of the in-place edit extension (perl -i option).
6281 $^L What formats output to perform a formfeed. Default is \f.
6282 $^M A buffer for emergency memory allocation when running out of memory.
6283 $^O The operating system name under which this copy of Perl was built.
6284 $^P Internal debugging flag.
6285 $^T The time the script was started. Used by -A/-M/-C file tests.
6286 $^W True if warnings are requested (perl -w flag).
6287 $^X The name under which perl was invoked (argv[0] in C-speech).
6288 $_ The default input and pattern-searching space.
6289 $| Auto-flush after write/print on current output channel? Default 0.
6290 $~ The name of the current report format.
6291 ... % ... Modulo division.
6292 ... %= ... Modulo division assignment.
6293 %ENV Contains the current environment.
6294 %INC List of files that have been require-d or do-ne.
6295 %SIG Used to set signal handlers for various signals.
6296 ... & ... Bitwise and.
6297 ... && ... Logical and.
6298 ... &&= ... Logical and assignment.
6299 ... &= ... Bitwise and assignment.
6300 ... * ... Multiplication.
6301 ... ** ... Exponentiation.
6302 *NAME Glob: all objects refered by NAME. *NAM1 = *NAM2 aliases NAM1 to NAM2.
6303 &NAME(arg0, ...) Subroutine call. Arguments go to @_.
6304 ... + ... Addition. +EXPR Makes EXPR into scalar context.
6305 ++ Auto-increment (magical on strings). ++EXPR EXPR++
6306 ... += ... Addition assignment.
6307 , Comma operator.
6308 ... - ... Subtraction.
6309 -- Auto-decrement (NOT magical on strings). --EXPR EXPR--
6310 ... -= ... Subtraction assignment.
6311 -A Access time in days since script started.
6312 -B File is a non-text (binary) file.
6313 -C Inode change time in days since script started.
6314 -M Age in days since script started.
6315 -O File is owned by real uid.
6316 -R File is readable by real uid.
6317 -S File is a socket .
6318 -T File is a text file.
6319 -W File is writable by real uid.
6320 -X File is executable by real uid.
6321 -b File is a block special file.
6322 -c File is a character special file.
6323 -d File is a directory.
6324 -e File exists .
6325 -f File is a plain file.
6326 -g File has setgid bit set.
6327 -k File has sticky bit set.
6328 -l File is a symbolic link.
6329 -o File is owned by effective uid.
6330 -p File is a named pipe (FIFO).
6331 -r File is readable by effective uid.
6332 -s File has non-zero size.
6333 -t Tests if filehandle (STDIN by default) is opened to a tty.
6334 -u File has setuid bit set.
6335 -w File is writable by effective uid.
6336 -x File is executable by effective uid.
6337 -z File has zero size.
6338 . Concatenate strings.
6339 .. Range (list context); flip/flop (scalar context) operator.
6340 .= Concatenate assignment strings
6341 ... / ... Division. /PATTERN/ioxsmg Pattern match
6342 ... /= ... Division assignment.
6343 /PATTERN/ioxsmg Pattern match.
6344 ... < ... Numeric less than. <pattern> Glob. See <NAME>, <> as well.
6345 <NAME> Reads line from filehandle NAME (a bareword or dollar-bareword).
6346 <pattern> Glob (Unless pattern is bareword/dollar-bareword - see <NAME>).
6347 <> Reads line from union of files in @ARGV (= command line) and STDIN.
6348 ... << ... Bitwise shift left. << start of HERE-DOCUMENT.
6349 ... <= ... Numeric less than or equal to.
6350 ... <=> ... Numeric compare.
6351 ... = ... Assignment.
6352 ... == ... Numeric equality.
6353 ... =~ ... Search pattern, substitution, or translation
6354 ... > ... Numeric greater than.
6355 ... >= ... Numeric greater than or equal to.
6356 ... >> ... Bitwise shift right.
6357 ... >>= ... Bitwise shift right assignment.
6358 ... ? ... : ... Condition=if-then-else operator. ?PAT? One-time pattern match.
6359 ?PATTERN? One-time pattern match.
6360 @ARGV Command line arguments (not including the command name - see $0).
6361 @INC List of places to look for perl scripts during do/include/use.
6362 @_ Parameter array for subroutines; result of split() unless in list context.
6363 \\ Creates reference to what follows, like \$var, or quotes non-\w in strings.
6364 \\0 Octal char, e.g. \\033.
6365 \\E Case modification terminator. See \\Q, \\L, and \\U.
6366 \\L Lowercase until \\E . See also \l, lc.
6367 \\U Upcase until \\E . See also \u, uc.
6368 \\Q Quote metacharacters until \\E . See also quotemeta.
6369 \\a Alarm character (octal 007).
6370 \\b Backspace character (octal 010).
6371 \\c Control character, e.g. \\c[ .
6372 \\e Escape character (octal 033).
6373 \\f Formfeed character (octal 014).
6374 \\l Lowercase the next character. See also \\L and \\u, lcfirst.
6375 \\n Newline character (octal 012 on most systems).
6376 \\r Return character (octal 015 on most systems).
6377 \\t Tab character (octal 011).
6378 \\u Upcase the next character. See also \\U and \\l, ucfirst.
6379 \\x Hex character, e.g. \\x1b.
6380 ... ^ ... Bitwise exclusive or.
6381 __END__ Ends program source.
6382 __DATA__ Ends program source.
6383 __FILE__ Current (source) filename.
6384 __LINE__ Current line in current source.
6385 __PACKAGE__ Current package.
6386 ARGV Default multi-file input filehandle. <ARGV> is a synonym for <>.
6387 ARGVOUT Output filehandle with -i flag.
6388 BEGIN { ... } Immediately executed (during compilation) piece of code.
6389 END { ... } Pseudo-subroutine executed after the script finishes.
6390 CHECK { ... } Pseudo-subroutine executed after the script is compiled.
6391 INIT { ... } Pseudo-subroutine executed before the script starts running.
6392 DATA Input filehandle for what follows after __END__ or __DATA__.
6393 accept(NEWSOCKET,GENERICSOCKET)
6394 alarm(SECONDS)
6395 atan2(X,Y)
6396 bind(SOCKET,NAME)
6397 binmode(FILEHANDLE)
6398 caller[(LEVEL)]
6399 chdir(EXPR)
6400 chmod(LIST)
6401 chop[(LIST|VAR)]
6402 chown(LIST)
6403 chroot(FILENAME)
6404 close(FILEHANDLE)
6405 closedir(DIRHANDLE)
6406 ... cmp ... String compare.
6407 connect(SOCKET,NAME)
6408 continue of { block } continue { block }. Is executed after `next' or at end.
6409 cos(EXPR)
6410 crypt(PLAINTEXT,SALT)
6411 dbmclose(%HASH)
6412 dbmopen(%HASH,DBNAME,MODE)
6413 defined(EXPR)
6414 delete($HASH{KEY})
6415 die(LIST)
6416 do { ... }|SUBR while|until EXPR executes at least once
6417 do(EXPR|SUBR([LIST])) (with while|until executes at least once)
6418 dump LABEL
6419 each(%HASH)
6420 endgrent
6421 endhostent
6422 endnetent
6423 endprotoent
6424 endpwent
6425 endservent
6426 eof[([FILEHANDLE])]
6427 ... eq ... String equality.
6428 eval(EXPR) or eval { BLOCK }
6429 exec(LIST)
6430 exit(EXPR)
6431 exp(EXPR)
6432 fcntl(FILEHANDLE,FUNCTION,SCALAR)
6433 fileno(FILEHANDLE)
6434 flock(FILEHANDLE,OPERATION)
6435 for (EXPR;EXPR;EXPR) { ... }
6436 foreach [VAR] (@ARRAY) { ... }
6437 fork
6438 ... ge ... String greater than or equal.
6439 getc[(FILEHANDLE)]
6440 getgrent
6441 getgrgid(GID)
6442 getgrnam(NAME)
6443 gethostbyaddr(ADDR,ADDRTYPE)
6444 gethostbyname(NAME)
6445 gethostent
6446 getlogin
6447 getnetbyaddr(ADDR,ADDRTYPE)
6448 getnetbyname(NAME)
6449 getnetent
6450 getpeername(SOCKET)
6451 getpgrp(PID)
6452 getppid
6453 getpriority(WHICH,WHO)
6454 getprotobyname(NAME)
6455 getprotobynumber(NUMBER)
6456 getprotoent
6457 getpwent
6458 getpwnam(NAME)
6459 getpwuid(UID)
6460 getservbyname(NAME,PROTO)
6461 getservbyport(PORT,PROTO)
6462 getservent
6463 getsockname(SOCKET)
6464 getsockopt(SOCKET,LEVEL,OPTNAME)
6465 gmtime(EXPR)
6466 goto LABEL
6467 ... gt ... String greater than.
6468 hex(EXPR)
6469 if (EXPR) { ... } [ elsif (EXPR) { ... } ... ] [ else { ... } ] or EXPR if EXPR
6470 index(STR,SUBSTR[,OFFSET])
6471 int(EXPR)
6472 ioctl(FILEHANDLE,FUNCTION,SCALAR)
6473 join(EXPR,LIST)
6474 keys(%HASH)
6475 kill(LIST)
6476 last [LABEL]
6477 ... le ... String less than or equal.
6478 length(EXPR)
6479 link(OLDFILE,NEWFILE)
6480 listen(SOCKET,QUEUESIZE)
6481 local(LIST)
6482 localtime(EXPR)
6483 log(EXPR)
6484 lstat(EXPR|FILEHANDLE|VAR)
6485 ... lt ... String less than.
6486 m/PATTERN/iogsmx
6487 mkdir(FILENAME,MODE)
6488 msgctl(ID,CMD,ARG)
6489 msgget(KEY,FLAGS)
6490 msgrcv(ID,VAR,SIZE,TYPE.FLAGS)
6491 msgsnd(ID,MSG,FLAGS)
6492 my VAR or my (VAR1,...) Introduces a lexical variable ($VAR, @ARR, or %HASH).
6493 our VAR or our (VAR1,...) Lexically enable a global variable ($V, @A, or %H).
6494 ... ne ... String inequality.
6495 next [LABEL]
6496 oct(EXPR)
6497 open(FILEHANDLE[,EXPR])
6498 opendir(DIRHANDLE,EXPR)
6499 ord(EXPR) ASCII value of the first char of the string.
6500 pack(TEMPLATE,LIST)
6501 package NAME Introduces package context.
6502 pipe(READHANDLE,WRITEHANDLE) Create a pair of filehandles on ends of a pipe.
6503 pop(ARRAY)
6504 print [FILEHANDLE] [(LIST)]
6505 printf [FILEHANDLE] (FORMAT,LIST)
6506 push(ARRAY,LIST)
6507 q/STRING/ Synonym for 'STRING'
6508 qq/STRING/ Synonym for \"STRING\"
6509 qx/STRING/ Synonym for `STRING`
6510 rand[(EXPR)]
6511 read(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
6512 readdir(DIRHANDLE)
6513 readlink(EXPR)
6514 recv(SOCKET,SCALAR,LEN,FLAGS)
6515 redo [LABEL]
6516 rename(OLDNAME,NEWNAME)
6517 require [FILENAME | PERL_VERSION]
6518 reset[(EXPR)]
6519 return(LIST)
6520 reverse(LIST)
6521 rewinddir(DIRHANDLE)
6522 rindex(STR,SUBSTR[,OFFSET])
6523 rmdir(FILENAME)
6524 s/PATTERN/REPLACEMENT/gieoxsm
6525 scalar(EXPR)
6526 seek(FILEHANDLE,POSITION,WHENCE)
6527 seekdir(DIRHANDLE,POS)
6528 select(FILEHANDLE | RBITS,WBITS,EBITS,TIMEOUT)
6529 semctl(ID,SEMNUM,CMD,ARG)
6530 semget(KEY,NSEMS,SIZE,FLAGS)
6531 semop(KEY,...)
6532 send(SOCKET,MSG,FLAGS[,TO])
6533 setgrent
6534 sethostent(STAYOPEN)
6535 setnetent(STAYOPEN)
6536 setpgrp(PID,PGRP)
6537 setpriority(WHICH,WHO,PRIORITY)
6538 setprotoent(STAYOPEN)
6539 setpwent
6540 setservent(STAYOPEN)
6541 setsockopt(SOCKET,LEVEL,OPTNAME,OPTVAL)
6542 shift[(ARRAY)]
6543 shmctl(ID,CMD,ARG)
6544 shmget(KEY,SIZE,FLAGS)
6545 shmread(ID,VAR,POS,SIZE)
6546 shmwrite(ID,STRING,POS,SIZE)
6547 shutdown(SOCKET,HOW)
6548 sin(EXPR)
6549 sleep[(EXPR)]
6550 socket(SOCKET,DOMAIN,TYPE,PROTOCOL)
6551 socketpair(SOCKET1,SOCKET2,DOMAIN,TYPE,PROTOCOL)
6552 sort [SUBROUTINE] (LIST)
6553 splice(ARRAY,OFFSET[,LENGTH[,LIST]])
6554 split[(/PATTERN/[,EXPR[,LIMIT]])]
6555 sprintf(FORMAT,LIST)
6556 sqrt(EXPR)
6557 srand(EXPR)
6558 stat(EXPR|FILEHANDLE|VAR)
6559 study[(SCALAR)]
6560 sub [NAME [(format)]] { BODY } sub NAME [(format)]; sub [(format)] {...}
6561 substr(EXPR,OFFSET[,LEN])
6562 symlink(OLDFILE,NEWFILE)
6563 syscall(LIST)
6564 sysread(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
6565 system(LIST)
6566 syswrite(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
6567 tell[(FILEHANDLE)]
6568 telldir(DIRHANDLE)
6569 time
6570 times
6571 tr/SEARCHLIST/REPLACEMENTLIST/cds
6572 truncate(FILE|EXPR,LENGTH)
6573 umask[(EXPR)]
6574 undef[(EXPR)]
6575 unless (EXPR) { ... } [ else { ... } ] or EXPR unless EXPR
6576 unlink(LIST)
6577 unpack(TEMPLATE,EXPR)
6578 unshift(ARRAY,LIST)
6579 until (EXPR) { ... } EXPR until EXPR
6580 utime(LIST)
6581 values(%HASH)
6582 vec(EXPR,OFFSET,BITS)
6583 wait
6584 waitpid(PID,FLAGS)
6585 wantarray Returns true if the sub/eval is called in list context.
6586 warn(LIST)
6587 while (EXPR) { ... } EXPR while EXPR
6588 write[(EXPR|FILEHANDLE)]
6589 ... x ... Repeat string or array.
6590 x= ... Repetition assignment.
6591 y/SEARCHLIST/REPLACEMENTLIST/
6592 ... | ... Bitwise or.
6593 ... || ... Logical or.
6594 ~ ... Unary bitwise complement.
6595 #! OS interpreter indicator. If contains `perl', used for options, and -x.
6596 AUTOLOAD {...} Shorthand for `sub AUTOLOAD {...}'.
6597 CORE:: Prefix to access builtin function if imported sub obscures it.
6598 SUPER:: Prefix to lookup for a method in @ISA classes.
6599 DESTROY Shorthand for `sub DESTROY {...}'.
6600 ... EQ ... Obsolete synonym of `eq'.
6601 ... GE ... Obsolete synonym of `ge'.
6602 ... GT ... Obsolete synonym of `gt'.
6603 ... LE ... Obsolete synonym of `le'.
6604 ... LT ... Obsolete synonym of `lt'.
6605 ... NE ... Obsolete synonym of `ne'.
6606 abs [ EXPR ] absolute value
6607 ... and ... Low-precedence synonym for &&.
6608 bless REFERENCE [, PACKAGE] Makes reference into an object of a package.
6609 chomp [LIST] Strips $/ off LIST/$_. Returns count. Special if $/ eq ''!
6610 chr Converts a number to char with the same ordinal.
6611 else Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
6612 elsif Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
6613 exists $HASH{KEY} True if the key exists.
6614 format [NAME] = Start of output format. Ended by a single dot (.) on a line.
6615 formline PICTURE, LIST Backdoor into \"format\" processing.
6616 glob EXPR Synonym of <EXPR>.
6617 lc [ EXPR ] Returns lowercased EXPR.
6618 lcfirst [ EXPR ] Returns EXPR with lower-cased first letter.
6619 grep EXPR,LIST or grep {BLOCK} LIST Filters LIST via EXPR/BLOCK.
6620 map EXPR, LIST or map {BLOCK} LIST Applies EXPR/BLOCK to elts of LIST.
6621 no PACKAGE [SYMBOL1, ...] Partial reverse for `use'. Runs `unimport' method.
6622 not ... Low-precedence synonym for ! - negation.
6623 ... or ... Low-precedence synonym for ||.
6624 pos STRING Set/Get end-position of the last match over this string, see \\G.
6625 quotemeta [ EXPR ] Quote regexp metacharacters.
6626 qw/WORD1 .../ Synonym of split('', 'WORD1 ...')
6627 readline FH Synonym of <FH>.
6628 readpipe CMD Synonym of `CMD`.
6629 ref [ EXPR ] Type of EXPR when dereferenced.
6630 sysopen FH, FILENAME, MODE [, PERM] (MODE is numeric, see Fcntl.)
6631 tie VAR, PACKAGE, LIST Hide an object behind a simple Perl variable.
6632 tied Returns internal object for a tied data.
6633 uc [ EXPR ] Returns upcased EXPR.
6634 ucfirst [ EXPR ] Returns EXPR with upcased first letter.
6635 untie VAR Unlink an object from a simple Perl variable.
6636 use PACKAGE [SYMBOL1, ...] Compile-time `require' with consequent `import'.
6637 ... xor ... Low-precedence synonym for exclusive or.
6638 prototype \&SUB Returns prototype of the function given a reference.
6639 =head1 Top-level heading.
6640 =head2 Second-level heading.
6641 =head3 Third-level heading (is there such?).
6642 =over [ NUMBER ] Start list.
6643 =item [ TITLE ] Start new item in the list.
6644 =back End list.
6645 =cut Switch from POD to Perl.
6646 =pod Switch from Perl to POD.
6649 (defun cperl-switch-to-doc-buffer (&optional interactive)
6650 "Go to the perl documentation buffer and insert the documentation."
6651 (interactive "p")
6652 (let ((buf (get-buffer-create cperl-doc-buffer)))
6653 (if interactive
6654 (switch-to-buffer-other-window buf)
6655 (set-buffer buf))
6656 (if (= (buffer-size) 0)
6657 (progn
6658 (insert (documentation-property 'cperl-short-docs
6659 'variable-documentation))
6660 (setq buffer-read-only t)))))
6662 (defun cperl-beautify-regexp-piece (b e embed level)
6663 ;; b is before the starting delimiter, e before the ending
6664 ;; e should be a marker, may be changed, but remains "correct".
6665 ;; EMBED is nil iff we process the whole REx.
6666 ;; The REx is guarantied to have //x
6667 ;; LEVEL shows how many levels deep to go
6668 ;; position at enter and at leave is not defined
6669 (let (s c tmp (m (make-marker)) (m1 (make-marker)) c1 spaces inline code pos)
6670 (if (not embed)
6671 (goto-char (1+ b))
6672 (goto-char b)
6673 (cond ((looking-at "(\\?\\\\#") ; (?#) wrongly commented when //x-ing
6674 (forward-char 2)
6675 (delete-char 1)
6676 (forward-char 1))
6677 ((looking-at "(\\?[^a-zA-Z]")
6678 (forward-char 3))
6679 ((looking-at "(\\?") ; (?i)
6680 (forward-char 2))
6682 (forward-char 1))))
6683 (setq c (if embed (current-indentation) (1- (current-column)))
6684 c1 (+ c (or cperl-regexp-indent-step cperl-indent-level)))
6685 (or (looking-at "[ \t]*[\n#]")
6686 (progn
6687 (insert "\n")))
6688 (goto-char e)
6689 (beginning-of-line)
6690 (if (re-search-forward "[^ \t]" e t)
6691 (progn ; Something before the ending delimiter
6692 (goto-char e)
6693 (delete-horizontal-space)
6694 (insert "\n")
6695 (indent-to-column c)
6696 (set-marker e (point))))
6697 (goto-char b)
6698 (end-of-line 2)
6699 (while (< (point) (marker-position e))
6700 (beginning-of-line)
6701 (setq s (point)
6702 inline t)
6703 (skip-chars-forward " \t")
6704 (delete-region s (point))
6705 (indent-to-column c1)
6706 (while (and
6707 inline
6708 (looking-at
6709 (concat "\\([a-zA-Z0-9]+[^*+{?]\\)" ; 1 word
6710 "\\|" ; Embedded variable
6711 "\\$\\([a-zA-Z0-9_]+\\([[{]\\)?\\|[^\n \t)|]\\)" ; 2 3
6712 "\\|" ; $ ^
6713 "[$^]"
6714 "\\|" ; simple-code simple-code*?
6715 "\\(\\\\.\\|[^][()#|*+?\n]\\)\\([*+{?]\\??\\)?" ; 4 5
6716 "\\|" ; Class
6717 "\\(\\[\\)" ; 6
6718 "\\|" ; Grouping
6719 "\\((\\(\\?\\)?\\)" ; 7 8
6720 "\\|" ; |
6721 "\\(|\\)"))) ; 9
6722 (goto-char (match-end 0))
6723 (setq spaces t)
6724 (cond ((match-beginning 1) ; Alphanum word + junk
6725 (forward-char -1))
6726 ((or (match-beginning 3) ; $ab[12]
6727 (and (match-beginning 5) ; X* X+ X{2,3}
6728 (eq (preceding-char) ?\{)))
6729 (forward-char -1)
6730 (forward-sexp 1))
6731 ((match-beginning 6) ; []
6732 (setq tmp (point))
6733 (if (looking-at "\\^?\\]")
6734 (goto-char (match-end 0)))
6735 ;; XXXX POSIX classes?!
6736 (while (and (not pos)
6737 (re-search-forward "\\[:\\|\\]" e t))
6738 (if (eq (preceding-char) ?:)
6739 (or (re-search-forward ":\\]" e t)
6740 (error "[:POSIX:]-group in []-group not terminated"))
6741 (setq pos t)))
6742 (or (eq (preceding-char) ?\])
6743 (error "[]-group not terminated"))
6744 (if (eq (following-char) ?\{)
6745 (progn
6746 (forward-sexp 1)
6747 (and (eq (following-char) ??)
6748 (forward-char 1)))
6749 (re-search-forward "\\=\\([*+?]\\??\\)" e t)))
6750 ((match-beginning 7) ; ()
6751 (goto-char (match-beginning 0))
6752 (setq pos (current-column))
6753 (or (eq pos c1)
6754 (progn
6755 (delete-horizontal-space)
6756 (insert "\n")
6757 (indent-to-column c1)))
6758 (setq tmp (point))
6759 (forward-sexp 1)
6760 ;; (or (forward-sexp 1)
6761 ;; (progn
6762 ;; (goto-char tmp)
6763 ;; (error "()-group not terminated")))
6764 (set-marker m (1- (point)))
6765 (set-marker m1 (point))
6766 (if (= level 1)
6767 (if (progn ; indent rigidly if multiline
6768 ;; In fact does not make a lot of sense, since
6769 ;; the starting position can be already lost due
6770 ;; to insertion of "\n" and " "
6771 (goto-char tmp)
6772 (search-forward "\n" m1 t))
6773 (indent-rigidly (point) m1 (- c1 pos)))
6774 (setq level (1- level))
6775 (cond
6776 ((not (match-beginning 8))
6777 (cperl-beautify-regexp-piece tmp m t level))
6778 ((eq (char-after (+ 2 tmp)) ?\{) ; Code
6780 ((eq (char-after (+ 2 tmp)) ?\() ; Conditional
6781 (goto-char (+ 2 tmp))
6782 (forward-sexp 1)
6783 (cperl-beautify-regexp-piece (point) m t level))
6784 ((eq (char-after (+ 2 tmp)) ?<) ; Lookbehind
6785 (goto-char (+ 3 tmp))
6786 (cperl-beautify-regexp-piece (point) m t level))
6788 (cperl-beautify-regexp-piece tmp m t level))))
6789 (goto-char m1)
6790 (cond ((looking-at "[*+?]\\??")
6791 (goto-char (match-end 0)))
6792 ((eq (following-char) ?\{)
6793 (forward-sexp 1)
6794 (if (eq (following-char) ?\?)
6795 (forward-char))))
6796 (skip-chars-forward " \t")
6797 (setq spaces nil)
6798 (if (looking-at "[#\n]")
6799 (progn
6800 (or (eolp) (indent-for-comment))
6801 (beginning-of-line 2))
6802 (delete-horizontal-space)
6803 (insert "\n"))
6804 (end-of-line)
6805 (setq inline nil))
6806 ((match-beginning 9) ; |
6807 (forward-char -1)
6808 (setq tmp (point))
6809 (beginning-of-line)
6810 (if (re-search-forward "[^ \t]" tmp t)
6811 (progn
6812 (goto-char tmp)
6813 (delete-horizontal-space)
6814 (insert "\n"))
6815 ;; first at line
6816 (delete-region (point) tmp))
6817 (indent-to-column c)
6818 (forward-char 1)
6819 (skip-chars-forward " \t")
6820 (setq spaces nil)
6821 (if (looking-at "[#\n]")
6822 (beginning-of-line 2)
6823 (delete-horizontal-space)
6824 (insert "\n"))
6825 (end-of-line)
6826 (setq inline nil)))
6827 (or (looking-at "[ \t\n]")
6828 (not spaces)
6829 (insert " "))
6830 (skip-chars-forward " \t"))
6831 (or (looking-at "[#\n]")
6832 (error "Unknown code `%s' in a regexp"
6833 (buffer-substring (point) (1+ (point)))))
6834 (and inline (end-of-line 2)))
6835 ;; Special-case the last line of group
6836 (if (and (>= (point) (marker-position e))
6837 (/= (current-indentation) c))
6838 (progn
6839 (beginning-of-line)
6840 (setq s (point))
6841 (skip-chars-forward " \t")
6842 (delete-region s (point))
6843 (indent-to-column c)))))
6845 (defun cperl-make-regexp-x ()
6846 ;; Returns position of the start
6847 ;; XXX this is called too often! Need to cache the result!
6848 (save-excursion
6849 (or cperl-use-syntax-table-text-property
6850 (error "I need to have a regexp marked!"))
6851 ;; Find the start
6852 (if (looking-at "\\s|")
6853 nil ; good already
6854 (if (looking-at "\\([smy]\\|qr\\)\\s|")
6855 (forward-char 1)
6856 (re-search-backward "\\s|"))) ; Assume it is scanned already.
6857 ;;(forward-char 1)
6858 (let ((b (point)) (e (make-marker)) have-x delim (c (current-column))
6859 (sub-p (eq (preceding-char) ?s)) s)
6860 (forward-sexp 1)
6861 (set-marker e (1- (point)))
6862 (setq delim (preceding-char))
6863 (if (and sub-p (eq delim (char-after (- (point) 2))))
6864 (error "Possible s/blah// - do not know how to deal with"))
6865 (if sub-p (forward-sexp 1))
6866 (if (looking-at "\\sw*x")
6867 (setq have-x t)
6868 (insert "x"))
6869 ;; Protect fragile " ", "#"
6870 (if have-x nil
6871 (goto-char (1+ b))
6872 (while (re-search-forward "\\(\\=\\|[^\\\\]\\)\\(\\\\\\\\\\)*[ \t\n#]" e t) ; Need to include (?#) too?
6873 (forward-char -1)
6874 (insert "\\")
6875 (forward-char 1)))
6876 b)))
6878 (defun cperl-beautify-regexp (&optional deep)
6879 "Do it. (Experimental, may change semantics, recheck the result.)
6880 We suppose that the regexp is scanned already."
6881 (interactive "P")
6882 (setq deep (if deep (prefix-numeric-value deep) -1))
6883 (save-excursion
6884 (goto-char (cperl-make-regexp-x))
6885 (let ((b (point)) (e (make-marker)))
6886 (forward-sexp 1)
6887 (set-marker e (1- (point)))
6888 (cperl-beautify-regexp-piece b e nil deep))))
6890 (defun cperl-regext-to-level-start ()
6891 "Goto start of an enclosing group in regexp.
6892 We suppose that the regexp is scanned already."
6893 (interactive)
6894 (let ((limit (cperl-make-regexp-x)) done)
6895 (while (not done)
6896 (or (eq (following-char) ?\()
6897 (search-backward "(" (1+ limit) t)
6898 (error "Cannot find `(' which starts a group"))
6899 (setq done
6900 (save-excursion
6901 (skip-chars-backward "\\")
6902 (looking-at "\\(\\\\\\\\\\)*(")))
6903 (or done (forward-char -1)))))
6905 (defun cperl-contract-level ()
6906 "Find an enclosing group in regexp and contract it.
6907 \(Experimental, may change semantics, recheck the result.)
6908 We suppose that the regexp is scanned already."
6909 (interactive)
6910 ;; (save-excursion ; Can't, breaks `cperl-contract-levels'
6911 (cperl-regext-to-level-start)
6912 (let ((b (point)) (e (make-marker)) s c)
6913 (forward-sexp 1)
6914 (set-marker e (1- (point)))
6915 (goto-char b)
6916 (while (re-search-forward "\\(#\\)\\|\n" e 'to-end)
6917 (cond
6918 ((match-beginning 1) ; #-comment
6919 (or c (setq c (current-indentation)))
6920 (beginning-of-line 2) ; Skip
6921 (setq s (point))
6922 (skip-chars-forward " \t")
6923 (delete-region s (point))
6924 (indent-to-column c))
6926 (delete-char -1)
6927 (just-one-space))))))
6929 (defun cperl-contract-levels ()
6930 "Find an enclosing group in regexp and contract all the kids.
6931 \(Experimental, may change semantics, recheck the result.)
6932 We suppose that the regexp is scanned already."
6933 (interactive)
6934 (save-excursion
6935 (condition-case nil
6936 (cperl-regext-to-level-start)
6937 (error ; We are outside outermost group
6938 (goto-char (cperl-make-regexp-x))))
6939 (let ((b (point)) (e (make-marker)) s c)
6940 (forward-sexp 1)
6941 (set-marker e (1- (point)))
6942 (goto-char (1+ b))
6943 (while (re-search-forward "\\(\\\\\\\\\\)\\|(" e t)
6944 (cond
6945 ((match-beginning 1) ; Skip
6946 nil)
6947 (t ; Group
6948 (cperl-contract-level)))))))
6950 (defun cperl-beautify-level (&optional deep)
6951 "Find an enclosing group in regexp and beautify it.
6952 \(Experimental, may change semantics, recheck the result.)
6953 We suppose that the regexp is scanned already."
6954 (interactive "P")
6955 (setq deep (if deep (prefix-numeric-value deep) -1))
6956 (save-excursion
6957 (cperl-regext-to-level-start)
6958 (let ((b (point)) (e (make-marker)))
6959 (forward-sexp 1)
6960 (set-marker e (1- (point)))
6961 (cperl-beautify-regexp-piece b e nil deep))))
6963 (defun cperl-invert-if-unless ()
6964 "Change `if (A) {B}' into `B if A;' etc if possible."
6965 (interactive)
6966 (or (looking-at "\\<")
6967 (forward-sexp -1))
6968 (if (looking-at "\\<\\(if\\|unless\\|while\\|until\\|for\\|foreach\\)\\>")
6969 (let ((pos1 (point))
6970 pos2 pos3 pos4 pos5 s1 s2 state p pos45
6971 (s0 (buffer-substring (match-beginning 0) (match-end 0))))
6972 (forward-sexp 2)
6973 (setq pos3 (point))
6974 (forward-sexp -1)
6975 (setq pos2 (point))
6976 (if (eq (following-char) ?\( )
6977 (progn
6978 (goto-char pos3)
6979 (forward-sexp 1)
6980 (setq pos5 (point))
6981 (forward-sexp -1)
6982 (setq pos4 (point))
6983 ;; XXXX In fact may be `A if (B); {C}' ...
6984 (if (and (eq (following-char) ?\{ )
6985 (progn
6986 (cperl-backward-to-noncomment pos3)
6987 (eq (preceding-char) ?\) )))
6988 (if (condition-case nil
6989 (progn
6990 (goto-char pos5)
6991 (forward-sexp 1)
6992 (forward-sexp -1)
6993 (looking-at "\\<els\\(e\\|if\\)\\>"))
6994 (error nil))
6995 (error
6996 "`%s' (EXPR) {BLOCK} with `else'/`elsif'" s0)
6997 (goto-char (1- pos5))
6998 (cperl-backward-to-noncomment pos4)
6999 (if (eq (preceding-char) ?\;)
7000 (forward-char -1))
7001 (setq pos45 (point))
7002 (goto-char pos4)
7003 (while (re-search-forward "\\<\\(for\\|foreach\\|if\\|unless\\|while\\|until\\)\\>\\|;" pos45 t)
7004 (setq p (match-beginning 0)
7005 s1 (buffer-substring p (match-end 0))
7006 state (parse-partial-sexp pos4 p))
7007 (or (nth 3 state)
7008 (nth 4 state)
7009 (nth 5 state)
7010 (error "`%s' inside `%s' BLOCK" s1 s0))
7011 (goto-char (match-end 0)))
7012 ;; Finally got it
7013 (goto-char (1+ pos4))
7014 (skip-chars-forward " \t\n")
7015 (setq s2 (buffer-substring (point) pos45))
7016 (goto-char pos45)
7017 (or (looking-at ";?[ \t\n]*}")
7018 (progn
7019 (skip-chars-forward "; \t\n")
7020 (setq s2 (concat s2 "\n" (buffer-substring (point) (1- pos5))))))
7021 (and (equal s2 "")
7022 (setq s2 "1"))
7023 (goto-char (1- pos3))
7024 (cperl-backward-to-noncomment pos2)
7025 (or (looking-at "[ \t\n]*)")
7026 (goto-char (1- pos3)))
7027 (setq p (point))
7028 (goto-char (1+ pos2))
7029 (skip-chars-forward " \t\n")
7030 (setq s1 (buffer-substring (point) p))
7031 (delete-region pos4 pos5)
7032 (delete-region pos2 pos3)
7033 (goto-char pos1)
7034 (insert s2 " ")
7035 (just-one-space)
7036 (forward-word 1)
7037 (setq pos1 (point))
7038 (insert " " s1 ";")
7039 (delete-horizontal-space)
7040 (forward-char -1)
7041 (delete-horizontal-space)
7042 (goto-char pos1)
7043 (just-one-space)
7044 (cperl-indent-line))
7045 (error "`%s' (EXPR) not with an {BLOCK}" s0)))
7046 (error "`%s' not with an (EXPR)" s0)))
7047 (error "Not at `if', `unless', `while', `until', `for' or `foreach'")))
7049 ;;; By Anthony Foiani <afoiani@uswest.com>
7050 ;;; Getting help on modules in C-h f ?
7051 ;;; This is a modified version of `man'.
7052 ;;; Need to teach it how to lookup functions
7053 (defun cperl-perldoc (word)
7054 "Run `perldoc' on WORD."
7055 (interactive
7056 (list (let* ((default-entry (cperl-word-at-point))
7057 (input (read-string
7058 (format "perldoc entry%s: "
7059 (if (string= default-entry "")
7061 (format " (default %s)" default-entry))))))
7062 (if (string= input "")
7063 (if (string= default-entry "")
7064 (error "No perldoc args given")
7065 default-entry)
7066 input))))
7067 (require 'man)
7068 (let* ((case-fold-search nil)
7069 (is-func (and
7070 (string-match "^[a-z]+$" word)
7071 (string-match (concat "^" word "\\>")
7072 (documentation-property
7073 'cperl-short-docs
7074 'variable-documentation))))
7075 (manual-program (if is-func "perldoc -f" "perldoc")))
7076 (cond
7077 (cperl-xemacs-p
7078 (let ((Manual-program "perldoc")
7079 (Manual-switches (if is-func (list "-f"))))
7080 (manual-entry word)))
7082 (Man-getpage-in-background word)))))
7084 (defun cperl-perldoc-at-point ()
7085 "Run a `perldoc' on the word around point."
7086 (interactive)
7087 (cperl-perldoc (cperl-word-at-point)))
7089 (defcustom pod2man-program "pod2man"
7090 "*File name for `pod2man'."
7091 :type 'file
7092 :group 'cperl)
7094 ;;; By Nick Roberts <Nick.Roberts@src.bae.co.uk> (with changes)
7095 (defun cperl-pod-to-manpage ()
7096 "Create a virtual manpage in Emacs from the Perl Online Documentation."
7097 (interactive)
7098 (require 'man)
7099 (let* ((pod2man-args (concat buffer-file-name " | nroff -man "))
7100 (bufname (concat "Man " buffer-file-name))
7101 (buffer (generate-new-buffer bufname)))
7102 (save-excursion
7103 (set-buffer buffer)
7104 (let ((process-environment (copy-sequence process-environment)))
7105 ;; Prevent any attempt to use display terminal fanciness.
7106 (setenv "TERM" "dumb")
7107 (set-process-sentinel
7108 (start-process pod2man-program buffer "sh" "-c"
7109 (format (cperl-pod2man-build-command) pod2man-args))
7110 'Man-bgproc-sentinel)))))
7112 ;;; Updated version by him too
7113 (defun cperl-build-manpage ()
7114 "Create a virtual manpage in Emacs from the POD in the file."
7115 (interactive)
7116 (require 'man)
7117 (cond
7118 (cperl-xemacs-p
7119 (let ((Manual-program "perldoc"))
7120 (manual-entry buffer-file-name)))
7122 (let* ((manual-program "perldoc"))
7123 (Man-getpage-in-background buffer-file-name)))))
7125 (defun cperl-pod2man-build-command ()
7126 "Builds the entire background manpage and cleaning command."
7127 (let ((command (concat pod2man-program " %s 2>/dev/null"))
7128 (flist Man-filter-list))
7129 (while (and flist (car flist))
7130 (let ((pcom (car (car flist)))
7131 (pargs (cdr (car flist))))
7132 (setq command
7133 (concat command " | " pcom " "
7134 (mapconcat '(lambda (phrase)
7135 (if (not (stringp phrase))
7136 (error "Malformed Man-filter-list"))
7137 phrase)
7138 pargs " ")))
7139 (setq flist (cdr flist))))
7140 command))
7142 (defun cperl-lazy-install ()) ; Avoid a warning
7143 (defun cperl-lazy-unstall ()) ; Avoid a warning
7145 (if (fboundp 'run-with-idle-timer)
7146 (progn
7147 (defvar cperl-help-shown nil
7148 "Non-nil means that the help was already shown now.")
7150 (defvar cperl-lazy-installed nil
7151 "Non-nil means that the lazy-help handlers are installed now.")
7153 (defun cperl-lazy-install ()
7154 "Switches on Auto-Help on Perl constructs (put in the message area).
7155 Delay of auto-help controlled by `cperl-lazy-help-time'."
7156 (interactive)
7157 (make-variable-buffer-local 'cperl-help-shown)
7158 (if (and (cperl-val 'cperl-lazy-help-time)
7159 (not cperl-lazy-installed))
7160 (progn
7161 (add-hook 'post-command-hook 'cperl-lazy-hook)
7162 (run-with-idle-timer
7163 (cperl-val 'cperl-lazy-help-time 1000000 5)
7165 'cperl-get-help-defer)
7166 (setq cperl-lazy-installed t))))
7168 (defun cperl-lazy-unstall ()
7169 "Switches off Auto-Help on Perl constructs (put in the message area).
7170 Delay of auto-help controlled by `cperl-lazy-help-time'."
7171 (interactive)
7172 (remove-hook 'post-command-hook 'cperl-lazy-hook)
7173 (cancel-function-timers 'cperl-get-help-defer)
7174 (setq cperl-lazy-installed nil))
7176 (defun cperl-lazy-hook ()
7177 (setq cperl-help-shown nil))
7179 (defun cperl-get-help-defer ()
7180 (if (not (memq major-mode '(perl-mode cperl-mode))) nil
7181 (let ((cperl-message-on-help-error nil) (cperl-help-from-timer t))
7182 (cperl-get-help)
7183 (setq cperl-help-shown t))))
7184 (cperl-lazy-install)))
7187 ;;; Plug for wrong font-lock:
7189 (defun cperl-font-lock-unfontify-region-function (beg end)
7190 ;; Simplified now that font-lock-unfontify-region uses save-buffer-state.
7191 (let (before-change-functions after-change-functions)
7192 (remove-text-properties beg end '(face nil))))
7194 (defvar cperl-d-l nil)
7195 (defun cperl-fontify-syntaxically (end)
7196 ;; Some vars for debugging only
7197 ;; (message "Syntaxifying...")
7198 (let ((dbg (point)) (iend end)
7199 (istate (car cperl-syntax-state))
7200 start)
7201 (and cperl-syntaxify-unwind
7202 (setq end (cperl-unwind-to-safe t end)))
7203 (setq start (point))
7204 (or cperl-syntax-done-to
7205 (setq cperl-syntax-done-to (point-min)))
7206 (if (or (not (boundp 'font-lock-hot-pass))
7207 (eval 'font-lock-hot-pass)
7208 t) ; Not debugged otherwise
7209 ;; Need to forget what is after `start'
7210 (setq start (min cperl-syntax-done-to start))
7211 ;; Fontification without a change
7212 (setq start (max cperl-syntax-done-to start)))
7213 (and (> end start)
7214 (setq cperl-syntax-done-to start) ; In case what follows fails
7215 (cperl-find-pods-heres start end t nil t))
7216 (if (eq cperl-syntaxify-by-font-lock 'message)
7217 (message "Syntaxified %s..%s from %s to %s(%s), state %s-->%s"
7218 dbg iend
7219 start end cperl-syntax-done-to
7220 istate (car cperl-syntax-state))) ; For debugging
7221 nil)) ; Do not iterate
7223 (defun cperl-fontify-update (end)
7224 (let ((pos (point)) prop posend)
7225 (while (< pos end)
7226 (setq prop (get-text-property pos 'cperl-postpone))
7227 (setq posend (next-single-property-change pos 'cperl-postpone nil end))
7228 (and prop (put-text-property pos posend (car prop) (cdr prop)))
7229 (setq pos posend)))
7230 nil) ; Do not iterate
7232 (defun cperl-update-syntaxification (from to)
7233 (if (and cperl-use-syntax-table-text-property
7234 cperl-syntaxify-by-font-lock
7235 (or (null cperl-syntax-done-to)
7236 (< cperl-syntax-done-to to)))
7237 (progn
7238 (save-excursion
7239 (goto-char from)
7240 (cperl-fontify-syntaxically to)))))
7242 (defvar cperl-version
7243 (let ((v "Revision: 5.0"))
7244 (string-match ":\\s *\\([0-9.]+\\)" v)
7245 (substring v (match-beginning 1) (match-end 1)))
7246 "Version of IZ-supported CPerl package this file is based on.")
7248 (provide 'cperl-mode)
7250 ;;; arch-tag: 42e5b19b-e187-4537-929f-1a7408980ce6
7251 ;;; cperl-mode.el ends here