lisp/progmodes/flymake.el

   1 ;;; flymake.el -- a universal on-the-fly syntax checker
   2
   3 ;; Copyright (C) 2003, 2004, 2005  Free Software Foundation
   4
   5 ;; Author:  Pavel Kobiakov <pk_at_work@yahoo.com>
   6 ;; Maintainer: Pavel Kobiakov <pk_at_work@yahoo.com>
   7 ;; Version: 0.3
   8 ;; Keywords: c languages tools
   9
  10 ;; This file is part of GNU Emacs.
  11
  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.
  16
  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.
  21
  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., 51 Franklin Street, Fifth Floor,
  25 ;; Boston, MA 02110-1301, USA.
  26
  27 ;;; Commentary:
  28 ;;
  29 ;; Flymake is a minor Emacs mode performing on-the-fly syntax
  30 ;; checks using the external syntax check tool (for C/C++ this
  31 ;; is usually the compiler)
  32
  33 ;;; Code:
  34
  35 ;;;; [[ Silence the byte-compiler
  36
  37 (defvar flymake-check-start-time)
  38 (defvar flymake-check-was-interrupted)
  39 (defvar flymake-err-info)
  40 (defvar flymake-is-running)
  41 (defvar flymake-last-change-time)
  42 (defvar flymake-new-err-info)
  43
  44 ;;;; ]]
  45
  46 ;;;; [[ Xemacs overlay compatibility
  47 (if (featurep 'xemacs) (progn
  48 (autoload 'make-overlay            "overlay" "Overlay compatibility kit." t)
  49 (autoload 'overlayp                "overlay" "Overlay compatibility kit." t)
  50 (autoload 'overlays-in             "overlay" "Overlay compatibility kit." t)
  51 (autoload 'delete-overlay          "overlay" "Overlay compatibility kit." t)
  52 (autoload 'overlay-put             "overlay" "Overlay compatibility kit." t)
  53 (autoload 'overlay-get             "overlay" "Overlay compatibility kit." t)
  54 ))
  55 ;;;; ]]
  56
  57 ;;;; [[ cross-emacs compatibility routines
  58 (defsubst flymake-makehash (&optional test)
  59   (if (fboundp 'make-hash-table)
  60       (if test (make-hash-table :test test) (make-hash-table))
  61     (with-no-warnings
  62       (makehash test))))
  63
  64 (defalias 'flymake-float-time
  65   (if (fboundp 'float-time)
  66       'float-time
  67     (if (featurep 'xemacs)
  68         (lambda ()
  69           (multiple-value-bind (s0 s1 s2) (current-time)
  70             (+ (* (float (ash 1 16)) s0) (float s1) (* 0.0000001 s2)))))))
  71
  72 (defsubst flymake-replace-regexp-in-string (regexp rep str)
  73   (if (fboundp 'replace-in-string)
  74       (replace-in-string str regexp rep)
  75     (replace-regexp-in-string regexp rep str)))
  76
  77 (defun flymake-split-string (str pattern)
  78   "Split STR into a list of substrings bounded by PATTERN.
  79 Zero-length substrings at the beginning and end of the list are omitted."
  80   (let* ((splitted (split-string str pattern)))
  81     (if (and (> (length splitted) 0) (= 0 (length (elt splitted 0))))
  82         (setq splitted (cdr splitted)))
  83     (if (and (> (length splitted) 0) (= 0 (length (elt splitted (1- (length splitted))))))
  84         (setq splitted (reverse (cdr (reverse splitted)))))
  85     splitted))
  86
  87 (defsubst flymake-get-temp-dir ()
  88   (if (fboundp 'temp-directory)
  89       (temp-directory)
  90     temporary-file-directory))
  91
  92 (defalias 'flymake-line-beginning-position
  93   (if (fboundp 'line-beginning-position)
  94       'line-beginning-position
  95     (lambda (&optional arg) (save-excursion (beginning-of-line arg) (point)))))
  96
  97 (defalias 'flymake-line-end-position
  98   (if (fboundp 'line-end-position)
  99       'line-end-position
 100     (lambda (&optional arg) (save-excursion (end-of-line arg) (point)))))
 101
 102 (defun flymake-popup-menu (pos menu-data)
 103   "Pop up the flymake menu at position POS, using the data MENU-DATA.
 104 POS is a list of the form ((X Y) WINDOW), where X and Y are
 105 pixels positions from the top left corner of WINDOW's frame.
 106 MENU-DATA is a list of error and warning messages returned by
 107 `flymake-make-err-menu-data'."
 108   (if (featurep 'xemacs)
 109       (let* ((x-pos       (nth 0 (nth 0 pos)))
 110              (y-pos       (nth 1 (nth 0 pos)))
 111              (fake-event-props  '(button 1 x 1 y 1)))
 112         (setq fake-event-props (plist-put fake-event-props 'x x-pos))
 113         (setq fake-event-props (plist-put fake-event-props 'y y-pos))
 114         (popup-menu (flymake-make-xemacs-menu menu-data) (make-event 'button-press fake-event-props)))
 115     (x-popup-menu pos (flymake-make-emacs-menu menu-data))))
 116
 117 (defun flymake-make-emacs-menu (menu-data)
 118   "Return a menu specifier using MENU-DATA.
 119 MENU-DATA is a list of error and warning messages returned by
 120 `flymake-make-err-menu-data'.
 121 See `x-popup-menu' for the menu specifier format."
 122   (let* ((menu-title     (nth 0 menu-data))
 123          (menu-items     (nth 1 menu-data))
 124          (menu-commands  nil))
 125     (setq menu-commands (mapcar (lambda (foo)
 126                                   (cons (nth 0 foo) (nth 1 foo)))
 127                                 menu-items))
 128     (list menu-title (cons "" menu-commands))))
 129
 130 (if (featurep 'xemacs) (progn
 131
 132 (defun flymake-nop ())
 133
 134 (defun flymake-make-xemacs-menu (menu-data)
 135   "Return a menu specifier using MENU-DATA."
 136   (let* ((menu-title     (nth 0 menu-data))
 137          (menu-items     (nth 1 menu-data))
 138          (menu-commands  nil))
 139     (setq menu-commands (mapcar (lambda (foo)
 140                                   (vector (nth 0 foo) (or (nth 1 foo) '(flymake-nop)) t))
 141                                 menu-items))
 142     (cons menu-title menu-commands)))
 143
 144 (defun flymake-xemacs-window-edges (&optional window)
 145   (let ((edges  (window-pixel-edges window))
 146         tmp)
 147     (setq tmp edges)
 148     (setcar tmp (/ (car tmp) (face-width 'default)))
 149     (setq tmp (cdr tmp))
 150     (setcar tmp (/ (car tmp) (face-height 'default)))
 151     (setq tmp (cdr tmp))
 152     (setcar tmp (/ (car tmp) (face-width 'default)))
 153     (setq tmp (cdr tmp))
 154     (setcar tmp (/ (car tmp) (face-height 'default)))
 155     edges))
 156
 157 )) ;; xemacs
 158
 159 (defun flymake-current-row ()
 160   "Return current row number in current frame."
 161   (if (fboundp 'window-edges)
 162       (+ (car (cdr (window-edges))) (count-lines (window-start) (point)))
 163     (count-lines (window-start) (point))))
 164
 165 (defun flymake-selected-frame ()
 166   (if (fboundp 'window-edges)
 167       (selected-frame)
 168     (selected-window)))
 169
 170 ;;;; ]]
 171
 172 (defcustom flymake-log-level -1
 173   "Logging level, only messages with level lower or equal will be logged.
 174 -1 = NONE, 0 = ERROR, 1 = WARNING, 2 = INFO, 3 = DEBUG"
 175   :group 'flymake
 176   :type 'integer)
 177
 178 (defun flymake-log (level text &rest args)
 179   "Log a message at level LEVEL.
 180 If LEVEL is higher than `flymake-log-level', the message is
 181 ignored.  Otherwise, it is printed using `message'.
 182 TEXT is a format control string, and the remaining arguments ARGS
 183 are the string substitutions (see `format')."
 184   (if (<= level flymake-log-level)
 185       (let* ((msg (apply 'format text args)))
 186         (message "%s" msg)
 187         ;;(with-temp-buffer
 188         ;;    (insert msg)
 189         ;;   (insert "\n")
 190         ;;   (flymake-save-buffer-in-file (current-buffer) "d:/flymake.log" t)  ; make log file name customizable
 191         ;;)
 192         )))
 193
 194 (defun flymake-ins-after (list pos val)
 195   "Insert VAL into LIST after position POS."
 196   (let ((tmp (copy-sequence list)))     ; (???)
 197     (setcdr (nthcdr pos tmp) (cons val (nthcdr (1+ pos) tmp)))
 198     tmp))
 199
 200 (defun flymake-set-at (list pos val)
 201   "Set VAL at position POS in LIST."
 202   (let ((tmp (copy-sequence list)))     ; (???)
 203     (setcar (nthcdr pos tmp) val)
 204     tmp))
 205
 206 (defvar flymake-pid-to-names (flymake-makehash)
 207   "Hash table mapping PIDs to source buffer names and output files.")
 208
 209 (defun flymake-reg-names (pid source-buffer-name)
 210   "Associate PID with SOURCE-BUFFER-NAME in `flymake-pid-to-names'."
 211   (unless (stringp source-buffer-name)
 212     (error "Invalid buffer name"))
 213   (puthash pid (list source-buffer-name) flymake-pid-to-names))
 214
 215 (defun flymake-get-source-buffer-name (pid)
 216   "Return buffer name associated with PID in `flymake-pid-to-names'."
 217   (nth 0 (gethash pid flymake-pid-to-names)))
 218
 219 (defun flymake-unreg-names (pid)
 220   "Remove the entry associated with PID from `flymake-pid-to-names'."
 221   (remhash pid flymake-pid-to-names))
 222
 223 (defvar flymake-buffer-data (flymake-makehash)
 224   "Data specific to syntax check tool, in name-value pairs.")
 225
 226 (make-variable-buffer-local 'flymake-buffer-data)
 227
 228 (defun flymake-get-buffer-value (buffer name)
 229   (gethash name (with-current-buffer buffer flymake-buffer-data)))
 230
 231 (defun flymake-set-buffer-value (buffer name value)
 232   (puthash name value (with-current-buffer buffer flymake-buffer-data)))
 233
 234 (defvar flymake-output-residual nil)
 235
 236 (make-variable-buffer-local 'flymake-output-residual)
 237
 238 (defcustom flymake-allowed-file-name-masks
 239   '((".+\\.c$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 240     (".+\\.cpp$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 241     (".+\\.xml$" flymake-xml-init flymake-simple-cleanup flymake-get-real-file-name)
 242     (".+\\.html?$" flymake-xml-init flymake-simple-cleanup flymake-get-real-file-name)
 243     (".+\\.cs$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 244     (".+\\.pl$" flymake-perl-init flymake-simple-cleanup flymake-get-real-file-name)
 245     (".+\\.h$" flymake-master-make-header-init flymake-master-cleanup flymake-get-real-file-name)
 246     (".+\\.java$" flymake-simple-make-java-init flymake-simple-java-cleanup flymake-get-real-file-name)
 247     (".+[0-9]+\\.tex$" flymake-master-tex-init flymake-master-cleanup flymake-get-real-file-name)
 248     (".+\\.tex$" flymake-simple-tex-init flymake-simple-cleanup flymake-get-real-file-name)
 249     (".+\\.idl$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 250     ;; (".+\\.cpp$" 1)
 251     ;; (".+\\.java$" 3)
 252     ;; (".+\\.h$" 2 (".+\\.cpp$" ".+\\.c$")
 253     ;; ("[ \t]*#[ \t]*include[ \t]*\"\\([\w0-9/\\_\.]*[/\\]*\\)\\(%s\\)\"" 1 2))
 254     ;; (".+\\.idl$" 1)
 255     ;; (".+\\.odl$" 1)
 256     ;; (".+[0-9]+\\.tex$" 2 (".+\\.tex$")
 257     ;; ("[ \t]*\\input[ \t]*{\\(.*\\)\\(%s\\)}" 1 2 ))
 258     ;; (".+\\.tex$" 1)
 259     )
 260   "*Files syntax checking is allowed for."
 261   :group 'flymake
 262   :type '(repeat (string symbol symbol symbol)))
 263
 264 (defun flymake-get-file-name-mode-and-masks (file-name)
 265   "Return the corresponding entry from `flymake-allowed-file-name-masks'."
 266   (unless (stringp file-name)
 267     (error "Invalid file-name"))
 268   (let ((fnm flymake-allowed-file-name-masks)
 269         (mode-and-masks  nil))
 270     (while (and (not mode-and-masks) fnm)
 271       (if (string-match (car (car fnm)) file-name)
 272           (setq mode-and-masks (cdr (car fnm))))
 273       (setq fnm (cdr fnm)))
 274     (flymake-log 3 "file %s, init=%s" file-name (car mode-and-masks))
 275     mode-and-masks))
 276
 277 (defun flymake-can-syntax-check-file (file-name)
 278   "Determine whether we can syntax check FILE-NAME.
 279 Return nil if we cannot, non-nil if we can."
 280   (if (flymake-get-init-function file-name) t nil))
 281
 282 (defun flymake-get-init-function (file-name)
 283   "Return init function to be used for the file."
 284   (let* ((init-f  (nth 0 (flymake-get-file-name-mode-and-masks file-name))))
 285     ;;(flymake-log 0 "calling %s" init-f)
 286     ;;(funcall init-f (current-buffer))
 287     init-f))
 288
 289 (defun flymake-get-cleanup-function (file-name)
 290   "Return cleanup function to be used for the file."
 291   (nth 1 (flymake-get-file-name-mode-and-masks file-name)))
 292
 293 (defun flymake-get-real-file-name-function (file-name)
 294   (or (nth 2 (flymake-get-file-name-mode-and-masks file-name)) 'flymake-get-real-file-name))
 295
 296 (defcustom flymake-buildfile-dirs '("." ".." "../.." "../../.." "../../../.." "../../../../.." "../../../../../.." "../../../../../../.." "../../../../../../../.." "../../../../../../../../.." "../../../../../../../../../.." "../../../../../../../../../../..")
 297   "Dirs to look for buildfile."
 298   :group 'flymake
 299   :type '(repeat (string)))
 300
 301 (defvar flymake-find-buildfile-cache (flymake-makehash 'equal))
 302
 303 (defun flymake-get-buildfile-from-cache (dir-name)
 304   (gethash dir-name flymake-find-buildfile-cache))
 305
 306 (defun flymake-add-buildfile-to-cache (dir-name buildfile)
 307   (puthash dir-name buildfile flymake-find-buildfile-cache))
 308
 309 (defun flymake-clear-buildfile-cache ()
 310   (clrhash flymake-find-buildfile-cache))
 311
 312 (defun flymake-find-buildfile (buildfile-name source-dir-name dirs)
 313   "Find buildfile starting from current directory.
 314 Buildfile includes Makefile, build.xml etc.
 315 Return its file name if found, or nil if not found."
 316   (if (flymake-get-buildfile-from-cache source-dir-name)
 317       (progn
 318         (flymake-get-buildfile-from-cache source-dir-name))
 319     (let* ((buildfile-dir          nil)
 320            (buildfile              nil)
 321            (found                  nil))
 322       (while (and (not found) dirs)
 323         (setq buildfile-dir (concat source-dir-name (car dirs)))
 324         (setq buildfile (concat buildfile-dir "/" buildfile-name))
 325         (when (file-exists-p buildfile)
 326           (setq found t))
 327         (setq dirs (cdr dirs)))
 328       (if found
 329           (progn
 330             (flymake-log 3 "found buildfile at %s/%s" buildfile-dir buildfile-name)
 331             (flymake-add-buildfile-to-cache source-dir-name buildfile-dir)
 332             buildfile-dir)
 333         (progn
 334           (flymake-log 3 "buildfile for %s not found" source-dir-name)
 335           nil)))))
 336
 337 (defun flymake-fix-file-name (name)
 338   "Replace all occurences of '\' with '/'."
 339   (when name
 340     (let* ((new-name (flymake-replace-regexp-in-string "[\\]" "/" (expand-file-name name)))
 341            (last-char (elt new-name (1- (length new-name)))))
 342       (setq new-name (flymake-replace-regexp-in-string "\\./" "" new-name))
 343       (if (equal "/" (char-to-string last-char))
 344           (setq new-name (substring new-name 0 (1- (length new-name)))))
 345       new-name)))
 346
 347 (defun flymake-same-files (file-name-one file-name-two)
 348   "Check if FILE-NAME-ONE and FILE-NAME-TWO point to same file.
 349 Return t if so, nil if not."
 350   (equal (flymake-fix-file-name file-name-one)
 351          (flymake-fix-file-name file-name-two)))
 352
 353 (defun flymake-get-common-file-prefix (string-one string-two)
 354   "Return common prefix for two file names STRING-ONE and STRING-TWO."
 355   (setq string-one (file-name-as-directory string-one))
 356   (setq string-two (file-name-as-directory string-two))
 357   (let ((n (compare-strings string-one nil nil string-two nil nil)))
 358     (if (eq n t) string-one
 359       (setq n (abs (1+ n)))
 360       (file-name-directory (substring string-one 0 n)))))
 361
 362 (defun flymake-build-relative-filename (from-dir to-dir)
 363   "Return rel: FROM-DIR/rel == TO-DIR."
 364   ;; FIXME: Why not use `file-relative-name'?
 365   (if (not (equal (elt from-dir 0) (elt to-dir 0)))
 366       (error "First chars in file names %s, %s must be equal (same drive)"
 367              from-dir to-dir)
 368     (let* ((from (file-name-as-directory (flymake-fix-file-name from-dir)))
 369            (to   (file-name-as-directory (flymake-fix-file-name to-dir)))
 370            (prefix      (flymake-get-common-file-prefix from to))
 371            (from-suffix (substring from (length prefix)))
 372            (up-count    (length (flymake-split-string from-suffix "[/]")))
 373            (to-suffix   (substring to   (length prefix)))
 374            (idx         0)
 375            (rel         nil))
 376       (if (and (> (length to-suffix) 0) (equal "/" (char-to-string (elt to-suffix 0))))
 377           (setq to-suffix (substring to-suffix 1)))
 378
 379       (while (< idx up-count)
 380         (if (> (length rel) 0)
 381             (setq rel (concat rel "/")))
 382         (setq rel (concat rel ".."))
 383         (setq idx (1+ idx)))
 384       (if (> (length rel) 0)
 385           (setq rel (concat rel "/")))
 386       (if (> (length to-suffix) 0)
 387           (setq rel (concat rel to-suffix)))
 388       (or rel "./"))))
 389
 390 (defcustom flymake-master-file-dirs '("." "./src" "./UnitTest")
 391   "Dirs where to look for master files."
 392   :group 'flymake
 393   :type '(repeat (string)))
 394
 395 (defcustom flymake-master-file-count-limit 32
 396   "Max number of master files to check."
 397   :group 'flymake
 398   :type 'integer)
 399
 400 ;; This is bound dynamically to pass a parameter to a sort predicate below
 401 (defvar flymake-included-file-name)
 402
 403 (defun flymake-find-possible-master-files (file-name master-file-dirs masks)
 404   "Find (by name and location) all possible master files.
 405 Master files are .cpp and .c for and .h.  Files are searched for
 406 starting from the .h directory and max max-level parent dirs.
 407 File contents are not checked."
 408   (let* ((dirs master-file-dirs)
 409          (files  nil)
 410          (done   nil))
 411
 412     (while (and (not done) dirs)
 413       (let* ((dir (concat (flymake-fix-file-name (file-name-directory file-name))
 414                           "/" (car dirs)))
 415              (masks masks))
 416         (while (and (file-exists-p dir) (not done) masks)
 417           (let* ((mask        (car masks))
 418                  (dir-files   (directory-files dir t mask)))
 419
 420             (flymake-log 3 "dir %s, %d file(s) for mask %s"
 421                          dir (length dir-files) mask)
 422             (while (and (not done) dir-files)
 423               (when (not (file-directory-p (car dir-files)))
 424                 (setq files (cons (car dir-files) files))
 425                 (when (>= (length files) flymake-master-file-count-limit)
 426                   (flymake-log 3 "master file count limit (%d) reached" flymake-master-file-count-limit)
 427                   (setq done t)))
 428               (setq dir-files (cdr dir-files))))
 429           (setq masks (cdr masks))))
 430       (setq dirs (cdr dirs)))
 431     (when files
 432       (let ((flymake-included-file-name (file-name-nondirectory file-name)))
 433         (setq files (sort files 'flymake-master-file-compare))))
 434     (flymake-log 3 "found %d possible master file(s)" (length files))
 435     files))
 436
 437 (defun flymake-master-file-compare (file-one file-two)
 438   "Compare two files specified by FILE-ONE and FILE-TWO.
 439 This function is used in sort to move most possible file names
 440 to the beginning of the list (File.h -> File.cpp moved to top)."
 441   (and (equal (file-name-sans-extension flymake-included-file-name)
 442               (file-name-sans-extension (file-name-nondirectory file-one)))
 443        (not (equal file-one file-two))))
 444
 445 (defcustom flymake-check-file-limit 8192
 446   "Max number of chars to look at when checking possible master file."
 447   :group 'flymake
 448   :type 'integer)
 449
 450 (defun flymake-check-patch-master-file-buffer (master-file-temp-buffer
 451                                                master-file-name patched-master-file-name
 452                                                source-file-name patched-source-file-name
 453                                                include-dirs regexp-list)
 454   "Check if MASTER-FILE-NAME is a master file for SOURCE-FILE-NAME.
 455 For .cpp master file this means it includes SOURCE-FILE-NAME (.h).
 456 If yes, patch a copy of MASTER-FILE-NAME to include PATCHED-SOURCE-FILE-NAME
 457 instead of SOURCE-FILE-NAME.
 458 Whether a buffer for MATER-FILE-NAME exists, use it as a source
 459 instead of reading master file from disk."
 460   (let* ((found                     nil)
 461          (regexp                    (format (nth 0 regexp-list) ; "[ \t]*#[ \t]*include[ \t]*\"\\([\w0-9/\\_\.]*[/\\]*\\)\\(%s\\)\""
 462                                             (file-name-nondirectory source-file-name)))
 463          (path-idx                  (nth 1 regexp-list))
 464          (name-idx                  (nth 2 regexp-list))
 465          (inc-path                  nil)
 466          (inc-name                  nil)
 467          (search-limit              flymake-check-file-limit))
 468     (save-excursion
 469       (unwind-protect
 470           (progn
 471             (set-buffer master-file-temp-buffer)
 472             (when (> search-limit (point-max))
 473               (setq search-limit (point-max)))
 474             (flymake-log 3 "checking %s against regexp %s" master-file-name regexp)
 475             (goto-char (point-min))
 476             (while (and (< (point) search-limit) (re-search-forward regexp search-limit t))
 477               (let* ((match-beg   (match-beginning name-idx))
 478                      (match-end   (match-end name-idx)))
 479
 480                 (flymake-log 3 "found possible match for %s" (file-name-nondirectory source-file-name))
 481                 (setq inc-path (match-string path-idx))
 482                 (setq inc-name (match-string name-idx))
 483                 (when (string= inc-name (file-name-nondirectory source-file-name))
 484                   (flymake-log 3 "inc-path=%s inc-name=%s" inc-path inc-name)
 485                   (when (flymake-check-include source-file-name inc-path inc-name include-dirs)
 486                     (setq found t)
 487                     ;;  replace-match is not used here as it fails in
 488                     ;; XEmacs with 'last match not a buffer' error as
 489                     ;; check-includes calls replace-in-string
 490                     (flymake-replace-region match-beg match-end
 491                                             (file-name-nondirectory patched-source-file-name))))
 492                 (forward-line 1)))
 493             (when found
 494               (flymake-save-buffer-in-file (current-buffer) patched-master-file-name)))
 495         ;;+(flymake-log 3 "killing buffer %s" (buffer-name master-file-temp-buffer))
 496         (kill-buffer master-file-temp-buffer)))
 497     ;;+(flymake-log 3 "check-patch master file %s: %s" master-file-name found)
 498     (when found
 499       (flymake-log 2 "found master file %s" master-file-name))
 500     found))
 501
 502 (defun flymake-replace-region (beg end rep)
 503   "Replace text in BUFFER in region (BEG END) with REP."
 504   (save-excursion
 505     (goto-char end)
 506     ;; Insert before deleting, so as to better preserve markers's positions.
 507     (insert rep)
 508     (delete-region beg end)))
 509
 510 (defun flymake-read-file-to-temp-buffer (file-name)
 511   "Insert contents of FILE-NAME into newly created temp buffer."
 512   (let* ((temp-buffer (get-buffer-create (generate-new-buffer-name (concat "flymake:" (file-name-nondirectory file-name))))))
 513     (with-current-buffer temp-buffer
 514       (insert-file-contents file-name))
 515     temp-buffer))
 516
 517 (defun flymake-copy-buffer-to-temp-buffer (buffer)
 518   "Copy contents of BUFFER into newly created temp buffer."
 519   (with-current-buffer
 520       (get-buffer-create (generate-new-buffer-name
 521                           (concat "flymake:" (buffer-name buffer))))
 522     (insert-buffer-substring buffer)
 523     (current-buffer)))
 524
 525 (defun flymake-check-include (source-file-name inc-path inc-name include-dirs)
 526   "Check if SOURCE-FILE-NAME can be found in include path.
 527 Return t if it can be found via include path using INC-PATH and INC-NAME."
 528   (if (file-name-absolute-p inc-path)
 529       (flymake-same-files source-file-name (concat inc-path "/" inc-name))
 530     (let* ((file-name  nil)
 531            (found      nil))
 532       (while (and (not found) include-dirs)
 533         (setq file-name (concat (file-name-directory source-file-name)
 534                                 "/" (car include-dirs)))
 535         (if (> (length inc-path) 0)
 536             (setq file-name (concat file-name "/" inc-path)))
 537         (setq file-name (concat file-name "/" inc-name))
 538         (when (flymake-same-files source-file-name file-name)
 539           (setq found t))
 540         (setq include-dirs (cdr include-dirs)))
 541       found)))
 542
 543 (defun flymake-find-buffer-for-file (file-name)
 544   "Check if there exists a buffer visiting FILE-NAME.
 545 Return t if so, nil if not."
 546   (let ((buffer-name (get-file-buffer file-name)))
 547     (if buffer-name
 548         (get-buffer buffer-name))))
 549
 550 (defun flymake-create-master-file (source-file-name patched-source-file-name get-incl-dirs-f create-temp-f masks include-regexp-list)
 551   "Save SOURCE-FILE-NAME with a different name.
 552 Find master file, patch and save it."
 553   (let* ((possible-master-files     (flymake-find-possible-master-files source-file-name flymake-master-file-dirs masks))
 554          (master-file-count         (length possible-master-files))
 555          (idx                       0)
 556          (temp-buffer               nil)
 557          (master-file-name          nil)
 558          (patched-master-file-name  nil)
 559          (found                     nil))
 560
 561     (while (and (not found) (< idx master-file-count))
 562       (setq master-file-name (nth idx possible-master-files))
 563       (setq patched-master-file-name (funcall create-temp-f master-file-name "flymake_master"))
 564       (if (flymake-find-buffer-for-file master-file-name)
 565           (setq temp-buffer (flymake-copy-buffer-to-temp-buffer (flymake-find-buffer-for-file master-file-name)))
 566         (setq temp-buffer (flymake-read-file-to-temp-buffer master-file-name)))
 567       (setq found
 568             (flymake-check-patch-master-file-buffer
 569              temp-buffer
 570              master-file-name
 571              patched-master-file-name
 572              source-file-name
 573              patched-source-file-name
 574              (funcall get-incl-dirs-f (file-name-directory master-file-name))
 575              include-regexp-list))
 576       (setq idx (1+ idx)))
 577     (if found
 578         (list master-file-name patched-master-file-name)
 579       (progn
 580         (flymake-log 3 "none of %d master file(s) checked includes %s" master-file-count
 581                      (file-name-nondirectory source-file-name))
 582         nil))))
 583
 584 (defun flymake-save-buffer-in-file (buffer file-name)
 585   (or buffer
 586       (error "Invalid buffer"))
 587   (with-current-buffer buffer
 588     (save-restriction
 589       (widen)
 590       (make-directory (file-name-directory file-name) 1)
 591       (write-region (point-min) (point-max) file-name nil 566)))
 592   (flymake-log 3 "saved buffer %s in file %s" (buffer-name buffer) file-name))
 593
 594 (defun flymake-save-string-to-file (file-name data)
 595   "Save string DATA to file FILE-NAME."
 596   (write-region data nil file-name nil 566))
 597
 598 (defun flymake-read-file-to-string (file-name)
 599   "Read contents of file FILE-NAME and return as a string."
 600   (with-temp-buffer
 601     (insert-file-contents file-name)
 602     (buffer-substring (point-min) (point-max))))
 603
 604 (defun flymake-process-filter (process output)
 605   "Parse OUTPUT and highlight error lines.
 606 It's flymake process filter."
 607   (let* ((pid               (process-id process))
 608          (source-buffer     (get-buffer (flymake-get-source-buffer-name pid))))
 609
 610     (flymake-log 3 "received %d byte(s) of output from process %d" (length output) pid)
 611     (when source-buffer
 612       (with-current-buffer source-buffer
 613         (flymake-parse-output-and-residual output)))))
 614
 615 (defun flymake-process-sentinel (process event)
 616   "Sentinel for syntax check buffers."
 617   (if (memq (process-status process) '(signal exit))
 618       (let*((exit-status       (process-exit-status process))
 619             (command           (process-command process))
 620             (pid               (process-id process))
 621             (source-buffer     (get-buffer (flymake-get-source-buffer-name pid)))
 622             (cleanup-f         (flymake-get-cleanup-function (buffer-file-name source-buffer))))
 623
 624         (flymake-log 2 "process %d exited with code %d" pid exit-status)
 625         (condition-case err
 626             (progn
 627               (flymake-log 3 "cleaning up using %s" cleanup-f)
 628               (funcall cleanup-f source-buffer)
 629
 630               (flymake-unreg-names pid)
 631               (delete-process process)
 632
 633               (when source-buffer
 634                 (with-current-buffer source-buffer
 635
 636                   (flymake-parse-residual)
 637                   (flymake-post-syntax-check exit-status command)
 638                   (setq flymake-is-running nil))))
 639           (error
 640            (let ((err-str (format "Error in process sentinel for buffer %s: %s"
 641                                   source-buffer (error-message-string err))))
 642              (flymake-log 0 err-str)
 643              (with-current-buffer source-buffer
 644                (setq flymake-is-running nil))))))))
 645
 646 (defun flymake-post-syntax-check (exit-status command)
 647   (setq flymake-err-info flymake-new-err-info)
 648   (setq flymake-new-err-info nil)
 649   (setq flymake-err-info
 650         (flymake-fix-line-numbers
 651          flymake-err-info 1 (flymake-count-lines)))
 652   (flymake-delete-own-overlays)
 653   (flymake-highlight-err-lines flymake-err-info)
 654   (let (err-count warn-count)
 655     (setq err-count (flymake-get-err-count flymake-err-info "e"))
 656     (setq warn-count  (flymake-get-err-count flymake-err-info "w"))
 657     (flymake-log 2 "%s: %d error(s), %d warning(s) in %.2f second(s)"
 658                  (buffer-name) err-count warn-count
 659                  (- (flymake-float-time) flymake-check-start-time))
 660     (setq flymake-check-start-time nil)
 661
 662     (if (and (equal 0 err-count) (equal 0 warn-count))
 663         (if (equal 0 exit-status)
 664             (flymake-report-status "" "")       ; PASSED
 665           (if (not flymake-check-was-interrupted)
 666               (flymake-report-fatal-status "CFGERR"
 667                                            (format "Configuration error has occured while running %s" command))
 668             (flymake-report-status nil ""))) ; "STOPPED"
 669       (flymake-report-status (format "%d/%d" err-count warn-count) ""))))
 670
 671 (defun flymake-parse-output-and-residual (output)
 672   "Split OUTPUT into lines, merge in residual if necessary."
 673   (let* ((buffer-residual     flymake-output-residual)
 674          (total-output        (if buffer-residual (concat buffer-residual output) output))
 675          (lines-and-residual  (flymake-split-output total-output))
 676          (lines               (nth 0 lines-and-residual))
 677          (new-residual        (nth 1 lines-and-residual)))
 678     (setq flymake-output-residual new-residual)
 679     (setq flymake-new-err-info
 680           (flymake-parse-err-lines
 681            flymake-new-err-info lines))))
 682
 683 (defun flymake-parse-residual ()
 684   "Parse residual if it's non empty."
 685   (when flymake-output-residual
 686     (setq flymake-new-err-info
 687           (flymake-parse-err-lines
 688            flymake-new-err-info
 689            (list flymake-output-residual)))
 690     (setq flymake-output-residual nil)))
 691
 692 (defvar flymake-err-info nil
 693   "Sorted list of line numbers and lists of err info in the form (file, err-text).")
 694
 695 (make-variable-buffer-local 'flymake-err-info)
 696
 697 (defun flymake-er-make-er (line-no line-err-info-list)
 698   (list line-no line-err-info-list))
 699
 700 (defun flymake-er-get-line (err-info)
 701   (nth 0 err-info))
 702
 703 (defun flymake-er-get-line-err-info-list (err-info)
 704   (nth 1 err-info))
 705
 706 (defvar flymake-new-err-info nil
 707   "Same as `flymake-err-info', effective when a syntax check is in progress.")
 708
 709 (make-variable-buffer-local 'flymake-new-err-info)
 710
 711 ;; getters/setters for line-err-info: (file, line, type, text).
 712 (defun flymake-ler-make-ler (file line type text &optional full-file)
 713   (list file line type text full-file))
 714
 715 (defun flymake-ler-get-file (line-err-info)
 716   (nth 0 line-err-info))
 717
 718 (defun flymake-ler-get-line (line-err-info)
 719   (nth 1 line-err-info))
 720
 721 (defun flymake-ler-get-type (line-err-info)
 722   (nth 2 line-err-info))
 723
 724 (defun flymake-ler-get-text (line-err-info)
 725   (nth 3 line-err-info))
 726
 727 (defun flymake-ler-get-full-file (line-err-info)
 728   (nth 4 line-err-info))
 729
 730 (defun flymake-ler-set-file (line-err-info file)
 731   (flymake-ler-make-ler file
 732                         (flymake-ler-get-line line-err-info)
 733                         (flymake-ler-get-type line-err-info)
 734                         (flymake-ler-get-text line-err-info)
 735                         (flymake-ler-get-full-file line-err-info)))
 736
 737 (defun flymake-ler-set-full-file (line-err-info full-file)
 738   (flymake-ler-make-ler (flymake-ler-get-file line-err-info)
 739                         (flymake-ler-get-line line-err-info)
 740                         (flymake-ler-get-type line-err-info)
 741                         (flymake-ler-get-text line-err-info)
 742                         full-file))
 743
 744 (defun flymake-ler-set-line (line-err-info line)
 745   (flymake-ler-make-ler (flymake-ler-get-file line-err-info)
 746                         line
 747                         (flymake-ler-get-type line-err-info)
 748                         (flymake-ler-get-text line-err-info)
 749                         (flymake-ler-get-full-file line-err-info)))
 750
 751 (defun flymake-get-line-err-count (line-err-info-list type)
 752   "Return number of errors of specified TYPE.
 753 Value of TYPE is either \"e\" or \"w\"."
 754   (let* ((idx        0)
 755          (count      (length line-err-info-list))
 756          (err-count  0))
 757
 758     (while (< idx count)
 759       (when (equal type (flymake-ler-get-type (nth idx line-err-info-list)))
 760         (setq err-count (1+ err-count)))
 761       (setq idx (1+ idx)))
 762     err-count))
 763
 764 (defun flymake-get-err-count (err-info-list type)
 765   "Return number of errors of specified TYPE for ERR-INFO-LIST."
 766   (let* ((idx        0)
 767          (count      (length err-info-list))
 768          (err-count  0))
 769     (while (< idx count)
 770       (setq err-count (+ err-count (flymake-get-line-err-count (nth 1 (nth idx err-info-list)) type)))
 771       (setq idx (1+ idx)))
 772     err-count))
 773
 774 (defun flymake-fix-line-numbers (err-info-list min-line max-line)
 775   "Replace line numbers with fixed value.
 776 If line-numbers is less than MIN-LINE, set line numbers to MIN-LINE.
 777 If line numbers is greater than MAX-LINE, set line numbers to MAX-LINE.
 778 The reason for this fix is because some compilers might report
 779 line number outside the file being compiled."
 780   (let* ((count     (length err-info-list))
 781          (err-info  nil)
 782          (line      0))
 783     (while (> count 0)
 784       (setq err-info (nth (1- count) err-info-list))
 785       (setq line (flymake-er-get-line err-info))
 786       (when (or (< line min-line) (> line max-line))
 787         (setq line (if (< line min-line) min-line max-line))
 788         (setq err-info-list (flymake-set-at err-info-list (1- count)
 789                                             (flymake-er-make-er line
 790                                                                 (flymake-er-get-line-err-info-list err-info)))))
 791       (setq count (1- count))))
 792   err-info-list)
 793
 794 (defun flymake-highlight-err-lines (err-info-list)
 795   "Highlight error lines in BUFFER using info from ERR-INFO-LIST."
 796   (save-excursion
 797     (dolist (err err-info-list)
 798       (flymake-highlight-line (car err) (nth 1 err)))))
 799
 800 (defun flymake-overlay-p (ov)
 801   "Determine whether overlay OV was created by flymake."
 802   (and (overlayp ov) (overlay-get ov 'flymake-overlay)))
 803
 804 (defun flymake-make-overlay (beg end tooltip-text face mouse-face)
 805   "Allocate a flymake overlay in range BEG and END."
 806   (when (not (flymake-region-has-flymake-overlays beg end))
 807     (let ((ov (make-overlay beg end nil t t)))
 808       (overlay-put ov 'face           face)
 809       (overlay-put ov 'mouse-face     mouse-face)
 810       (overlay-put ov 'help-echo      tooltip-text)
 811       (overlay-put ov 'flymake-overlay  t)
 812       (overlay-put ov 'priority 100)
 813       ;;+(flymake-log 3 "created overlay %s" ov)
 814       ov)
 815     (flymake-log 3 "created an overlay at (%d-%d)" beg end)))
 816
 817 (defun flymake-delete-own-overlays ()
 818   "Delete all flymake overlays in BUFFER."
 819   (dolist (ol (overlays-in (point-min) (point-max)))
 820     (when (flymake-overlay-p ol)
 821       (delete-overlay ol)
 822       ;;+(flymake-log 3 "deleted overlay %s" ol)
 823       )))
 824
 825 (defun flymake-region-has-flymake-overlays (beg end)
 826   "Check if region specified by BEG and END has overlay.
 827 Return t if it has at least one flymake overlay, nil if no overlay."
 828   (let ((ov                  (overlays-in beg end))
 829         (has-flymake-overlays  nil))
 830     (while (consp ov)
 831       (when (flymake-overlay-p (car ov))
 832         (setq has-flymake-overlays t))
 833       (setq ov (cdr ov)))
 834     has-flymake-overlays))
 835
 836 (defface flymake-errline
 837   ;;+   '((((class color)) (:foreground "OrangeRed" :bold t :underline t))
 838   ;;+   '((((class color)) (:underline "OrangeRed"))
 839   '((((class color)) (:background "LightPink"))
 840     (t (:bold t)))
 841   "Face used for marking error lines."
 842   :group 'flymake)
 843
 844 (defface flymake-warnline
 845   '((((class color)) (:background "LightBlue2"))
 846     (t (:bold t)))
 847   "Face used for marking warning lines."
 848   :group 'flymake)
 849
 850 (defun flymake-highlight-line (line-no line-err-info-list)
 851   "Highlight line LINE-NO in current buffer.
 852 Perhaps use text from LINE-ERR-INFO-LIST to enhance highlighting."
 853   (goto-line line-no)
 854   (let* ((line-beg (flymake-line-beginning-position))
 855          (line-end (flymake-line-end-position))
 856          (beg      line-beg)
 857          (end      line-end)
 858          (tooltip-text (flymake-ler-get-text (nth 0 line-err-info-list)))
 859          (face     nil))
 860
 861     (goto-char line-beg)
 862     (while (looking-at "[ \t]")
 863       (forward-char))
 864
 865     (setq beg (point))
 866
 867     (goto-char line-end)
 868     (while (and (looking-at "[ \t\r\n]") (> (point) 1))
 869       (backward-char))
 870
 871     (setq end (1+ (point)))
 872
 873     (when (<= end beg)
 874       (setq beg line-beg)
 875       (setq end line-end))
 876
 877     (when (= end beg)
 878       (goto-char end)
 879       (forward-line)
 880       (setq end (point)))
 881
 882     (if (> (flymake-get-line-err-count line-err-info-list "e") 0)
 883         (setq face 'flymake-errline)
 884       (setq face 'flymake-warnline))
 885
 886     (flymake-make-overlay beg end tooltip-text face nil)))
 887
 888 (defun flymake-parse-err-lines (err-info-list lines)
 889   "Parse err LINES, store info in ERR-INFO-LIST."
 890   (let* ((count              (length lines))
 891          (idx                0)
 892          (line-err-info      nil)
 893          (real-file-name     nil)
 894          (source-file-name   buffer-file-name)
 895          (get-real-file-name-f (flymake-get-real-file-name-function source-file-name)))
 896
 897     (while (< idx count)
 898       (setq line-err-info (flymake-parse-line (nth idx lines)))
 899       (when line-err-info
 900         (setq real-file-name (funcall get-real-file-name-f (current-buffer) (flymake-ler-get-file line-err-info)))
 901         (setq line-err-info (flymake-ler-set-full-file line-err-info real-file-name))
 902
 903         (if (flymake-same-files real-file-name source-file-name)
 904             (setq line-err-info (flymake-ler-set-file line-err-info nil))
 905           (setq line-err-info (flymake-ler-set-file line-err-info (file-name-nondirectory real-file-name))))
 906
 907         (setq err-info-list (flymake-add-err-info err-info-list line-err-info)))
 908       (flymake-log 3 "parsed '%s', %s line-err-info" (nth idx lines) (if line-err-info "got" "no"))
 909       (setq idx (1+ idx)))
 910     err-info-list))
 911
 912 (defun flymake-split-output (output)
 913   "Split OUTPUT into lines.
 914 Return last one as residual if it does not end with newline char.
 915 Returns ((LINES) RESIDUAL)."
 916   (when (and output (> (length output) 0))
 917     (let* ((lines (flymake-split-string output "[\n\r]+"))
 918            (complete (equal "\n" (char-to-string (aref output (1- (length output))))))
 919            (residual nil))
 920       (when (not complete)
 921         (setq residual (car (last lines)))
 922         (setq lines (butlast lines)))
 923       (list lines residual))))
 924
 925 (defun flymake-reformat-err-line-patterns-from-compile-el (original-list)
 926   "Grab error line patterns from ORIGINAL-LIST in compile.el format.
 927 Convert it to flymake internal format."
 928   (let* ((converted-list '()))
 929     (dolist (item original-list)
 930       (setq item (cdr item))
 931       (let ((regexp (nth 0 item))
 932             (file (nth 1 item))
 933             (line (nth 2 item))
 934             (col (nth 3 item)))
 935         (if (consp file)        (setq file (car file)))
 936         (if (consp line)        (setq line (car line)))
 937         (if (consp col) (setq col (car col)))
 938
 939         (when (not (functionp line))
 940           (setq converted-list (cons (list regexp file line col) converted-list)))))
 941     converted-list))
 942
 943 (require 'compile)
 944
 945 (defvar flymake-err-line-patterns ; regexp file-idx line-idx col-idx (optional) text-idx(optional), match-end to end of string is error text
 946   (append
 947    '(
 948      ;; MS Visual C++ 6.0
 949      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)) \: \\(\\(error\\|warning\\|fatal error\\) \\(C[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 950       1 3 nil 4)
 951      ;; jikes
 952      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[0-9]+\:[0-9]+\:[0-9]+\: \\(\\(Error\\|Warning\\|Caution\\|Semantic Error\\):[ \t\n]*\\(.+\\)\\)"
 953       1 3 nil 4)
 954      ;; MS midl
 955      ("midl[ ]*:[ ]*\\(command line error .*\\)"
 956       nil nil nil 1)
 957      ;; MS C#
 958      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\),[0-9]+)\: \\(\\(error\\|warning\\|fatal error\\) \\(CS[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 959       1 3 nil 4)
 960      ;; perl
 961      ("\\(.*\\) at \\([^ \n]+\\) line \\([0-9]+\\)[,.\n]" 2 3 nil 1)
 962      ;; LaTeX warnings (fileless) ("\\(LaTeX \\(Warning\\|Error\\): .*\\) on input line \\([0-9]+\\)" 20 3 nil 1)
 963      ;; ant/javac
 964      (" *\\(\\[javac\\]\\)? *\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[ \t\n]*\\(.+\\)"
 965       2 4 nil 5))
 966    ;; compilation-error-regexp-alist)
 967    (flymake-reformat-err-line-patterns-from-compile-el compilation-error-regexp-alist-alist))
 968   "Patterns for matching error/warning lines.
 969 \(REGEXP FILE-IDX LINE-IDX ERR-TEXT-IDX).
 970 Use `flymake-reformat-err-line-patterns-from-compile-el' to add patterns
 971 from compile.el")
 972
 973 ;;(defcustom flymake-err-line-patterns
 974 ;;  '(
 975 ;;    ; MS Visual C++ 6.0
 976 ;;    ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)) \: \\(\\(error\\|warning\\|fatal error\\) \\(C[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 977 ;;       1 3 4)
 978 ;;   ; jikes
 979 ;;   ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[0-9]+\:[0-9]+\:[0-9]+\: \\(\\(Error\\|Warning\\|Caution\\):[ \t\n]*\\(.+\\)\\)"
 980 ;;       1 3 4))
 981 ;;    "patterns for matching error/warning lines, (regexp file-idx line-idx err-text-idx)"
 982 ;;   :group 'flymake
 983 ;;   :type '(repeat (string number number number))
 984 ;;)
 985
 986 (defun flymake-parse-line (line)
 987   "Parse LINE to see if it is an error or warning.
 988 Return its components if so, nil otherwise."
 989   (let ((raw-file-name nil)
 990         (line-no 0)
 991         (err-type "e")
 992         (err-text nil)
 993         (patterns flymake-err-line-patterns)
 994         (matched nil))
 995     (while (and patterns (not matched))
 996       (when (string-match (car (car patterns)) line)
 997         (let* ((file-idx (nth 1 (car patterns)))
 998                (line-idx (nth 2 (car patterns))))
 999
1000           (setq raw-file-name (if file-idx (match-string file-idx line) nil))
1001           (setq line-no       (if line-idx (string-to-number (match-string line-idx line)) 0))
1002           (setq err-text      (if (> (length (car patterns)) 4)
1003                                   (match-string (nth 4 (car patterns)) line)
1004                                 (flymake-patch-err-text (substring line (match-end 0)))))
1005           (or err-text (setq err-text "<no error text>"))
1006           (if (and err-text (string-match "^[wW]arning" err-text))
1007               (setq err-type "w")
1008             )
1009           (flymake-log 3 "parse line: file-idx=%s line-idx=%s file=%s line=%s text=%s" file-idx line-idx
1010                        raw-file-name line-no err-text)
1011           (setq matched t)))
1012       (setq patterns (cdr patterns)))
1013     (if matched
1014         (flymake-ler-make-ler raw-file-name line-no err-type err-text)
1015       ())))
1016
1017 (defun flymake-find-err-info (err-info-list line-no)
1018   "Find (line-err-info-list pos) for specified LINE-NO."
1019   (if err-info-list
1020       (let* ((line-err-info-list  nil)
1021              (pos       0)
1022              (count     (length err-info-list)))
1023
1024         (while (and (< pos count) (< (car (nth pos err-info-list)) line-no))
1025           (setq pos (1+ pos)))
1026         (when (and (< pos count) (equal (car (nth pos err-info-list)) line-no))
1027           (setq line-err-info-list (flymake-er-get-line-err-info-list (nth pos err-info-list))))
1028         (list line-err-info-list pos))
1029     '(nil 0)))
1030
1031 (defun flymake-line-err-info-is-less-or-equal (line-one line-two)
1032   (or (string< (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1033       (and (string= (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1034            (not (flymake-ler-get-file line-one)) (flymake-ler-get-file line-two))
1035       (and (string= (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1036            (or (and      (flymake-ler-get-file line-one)       (flymake-ler-get-file line-two))
1037                (and (not (flymake-ler-get-file line-one)) (not (flymake-ler-get-file line-two)))))))
1038
1039 (defun flymake-add-line-err-info (line-err-info-list line-err-info)
1040   "Update LINE-ERR-INFO-LIST with the error LINE-ERR-INFO.
1041 For the format of LINE-ERR-INFO, see `flymake-ler-make-ler'.
1042 The new element is inserted in the proper position, according to
1043 the predicate `flymake-line-err-info-is-less-or-equal'.
1044 The updated value of LINE-ERR-INFO-LIST is returned."
1045   (if (not line-err-info-list)
1046       (list line-err-info)
1047     (let* ((count  (length line-err-info-list))
1048            (idx    0))
1049       (while (and (< idx count) (flymake-line-err-info-is-less-or-equal (nth idx line-err-info-list) line-err-info))
1050         (setq idx (1+ idx)))
1051       (cond ((equal 0     idx)    (setq line-err-info-list (cons line-err-info line-err-info-list)))
1052             (t                    (setq line-err-info-list (flymake-ins-after line-err-info-list (1- idx) line-err-info))))
1053       line-err-info-list)))
1054
1055 (defun flymake-add-err-info (err-info-list line-err-info)
1056   "Update ERR-INFO-LIST with the error LINE-ERR-INFO, preserving sort order.
1057 Returns the updated value of ERR-INFO-LIST.
1058 For the format of ERR-INFO-LIST, see `flymake-err-info'.
1059 For the format of LINE-ERR-INFO, see `flymake-ler-make-ler'."
1060   (let* ((line-no             (if (flymake-ler-get-file line-err-info) 1 (flymake-ler-get-line line-err-info)))
1061          (info-and-pos        (flymake-find-err-info err-info-list line-no))
1062          (exists              (car info-and-pos))
1063          (pos                 (nth 1 info-and-pos))
1064          (line-err-info-list  nil)
1065          (err-info            nil))
1066
1067     (if exists
1068         (setq line-err-info-list (flymake-er-get-line-err-info-list (car (nthcdr pos err-info-list)))))
1069     (setq line-err-info-list (flymake-add-line-err-info line-err-info-list line-err-info))
1070
1071     (setq err-info (flymake-er-make-er line-no line-err-info-list))
1072     (cond (exists             (setq err-info-list (flymake-set-at err-info-list pos err-info)))
1073           ((equal 0 pos)      (setq err-info-list (cons err-info err-info-list)))
1074           (t                  (setq err-info-list (flymake-ins-after err-info-list (1- pos) err-info))))
1075     err-info-list))
1076
1077 (defun flymake-get-project-include-dirs-imp (basedir)
1078   "Include dirs for the project current file belongs to."
1079   (if (flymake-get-project-include-dirs-from-cache basedir)
1080       (progn
1081         (flymake-get-project-include-dirs-from-cache basedir))
1082     ;;else
1083     (let* ((command-line  (concat "make -C\"" basedir "\" DUMPVARS=INCLUDE_DIRS dumpvars"))
1084            (output        (shell-command-to-string command-line))
1085            (lines         (flymake-split-string output "\n"))
1086            (count         (length lines))
1087            (idx           0)
1088            (inc-dirs      nil))
1089       (while (and (< idx count) (not (string-match "^INCLUDE_DIRS=.*" (nth idx lines))))
1090         (setq idx (1+ idx)))
1091       (when (< idx count)
1092         (let* ((inc-lines  (flymake-split-string (nth idx lines) " *-I"))
1093                (inc-count  (length inc-lines)))
1094           (while (> inc-count 0)
1095             (when (not (string-match "^INCLUDE_DIRS=.*" (nth (1- inc-count) inc-lines)))
1096               (setq inc-dirs (cons (flymake-replace-regexp-in-string "\"" "" (nth (1- inc-count) inc-lines)) inc-dirs)))
1097             (setq inc-count (1- inc-count)))))
1098       (flymake-add-project-include-dirs-to-cache basedir inc-dirs)
1099       inc-dirs)))
1100
1101 (defcustom flymake-get-project-include-dirs-function 'flymake-get-project-include-dirs-imp
1102   "Function used to get project include dirs, one parameter: basedir name."
1103   :group 'flymake
1104   :type 'function)
1105
1106 (defun flymake-get-project-include-dirs (basedir)
1107   (funcall flymake-get-project-include-dirs-function basedir))
1108
1109 (defun flymake-get-system-include-dirs ()
1110   "System include dirs - from the 'INCLUDE' env setting."
1111   (let* ((includes (getenv "INCLUDE")))
1112     (if includes (flymake-split-string includes path-separator) nil)))
1113
1114 (defvar flymake-project-include-dirs-cache (flymake-makehash 'equal))
1115
1116 (defun flymake-get-project-include-dirs-from-cache (base-dir)
1117   (gethash base-dir flymake-project-include-dirs-cache))
1118
1119 (defun flymake-add-project-include-dirs-to-cache (base-dir include-dirs)
1120   (puthash base-dir include-dirs flymake-project-include-dirs-cache))
1121
1122 (defun flymake-clear-project-include-dirs-cache ()
1123   (clrhash flymake-project-include-dirs-cache))
1124
1125 (defun flymake-get-include-dirs (base-dir)
1126   "Get dirs to use when resolving local file names."
1127   (let* ((include-dirs (append '(".") (flymake-get-project-include-dirs base-dir) (flymake-get-system-include-dirs))))
1128     include-dirs))
1129
1130 ;; (defun flymake-restore-formatting ()
1131 ;;   "Remove any formatting made by flymake."
1132 ;;   )
1133
1134 (defun flymake-get-program-dir (buffer)
1135   "Get dir to start program in."
1136   (unless (bufferp buffer)
1137     (error "Invalid buffer"))
1138   (with-current-buffer buffer
1139     default-directory))
1140
1141 (defun flymake-safe-delete-file (file-name)
1142   (when (and file-name (file-exists-p file-name))
1143     (delete-file file-name)
1144     (flymake-log 1 "deleted file %s" file-name)))
1145
1146 (defun flymake-safe-delete-directory (dir-name)
1147   (condition-case err
1148       (progn
1149         (delete-directory dir-name)
1150         (flymake-log 1 "deleted dir %s" dir-name))
1151     (error
1152      (flymake-log 1 "Failed to delete dir %s, error ignored" dir-name))))
1153
1154 (defcustom flymake-compilation-prevents-syntax-check t
1155   "If non-nil, syntax check won't be started in case compilation is running."
1156   :group 'flymake
1157   :type 'boolean)
1158
1159 (defun flymake-start-syntax-check ()
1160   "Start syntax checking for current buffer."
1161   (interactive)
1162   (flymake-log 3 "flymake is running: %s" flymake-is-running)
1163   (when (and (not flymake-is-running)
1164              (flymake-can-syntax-check-file buffer-file-name))
1165     (when (or (not flymake-compilation-prevents-syntax-check)
1166               (not (flymake-compilation-is-running))) ;+ (flymake-rep-ort-status buffer "COMP")
1167       (flymake-clear-buildfile-cache)
1168       (flymake-clear-project-include-dirs-cache)
1169
1170       (setq flymake-check-was-interrupted nil)
1171       (setq flymake-buffer-data (flymake-makehash 'equal))
1172
1173       (let* ((source-file-name  buffer-file-name)
1174              (init-f (flymake-get-init-function source-file-name))
1175              (cleanup-f (flymake-get-cleanup-function source-file-name))
1176              (cmd-and-args (funcall init-f (current-buffer)))
1177              (cmd          (nth 0 cmd-and-args))
1178              (args         (nth 1 cmd-and-args))
1179              (dir          (nth 2 cmd-and-args)))
1180         (if (not cmd-and-args)
1181             (progn
1182               (flymake-log 0 "init function %s for %s failed, cleaning up" init-f source-file-name)
1183               (funcall cleanup-f (current-buffer)))
1184           (progn
1185             (setq flymake-last-change-time nil)
1186             (flymake-start-syntax-check-process cmd args dir)))))))
1187
1188 (defun flymake-start-syntax-check-process (cmd args dir)
1189   "Start syntax check process."
1190   (let* ((process nil))
1191     (condition-case err
1192         (progn
1193           (when dir
1194             (let ((default-directory dir))
1195               (flymake-log 3 "starting process on dir %s" default-directory)))
1196           (setq process (get-process (apply 'start-process "flymake-proc" nil cmd args)))
1197           (set-process-sentinel process 'flymake-process-sentinel)
1198           (set-process-filter process 'flymake-process-filter)
1199
1200           (flymake-reg-names (process-id process) (buffer-name))
1201
1202           (setq flymake-is-running t)
1203           (setq flymake-last-change-time nil)
1204           (setq flymake-check-start-time (flymake-float-time))
1205
1206           (flymake-report-status nil "*")
1207           (flymake-log 2 "started process %d, command=%s, dir=%s"
1208                        (process-id process) (process-command process) default-directory)
1209           process)
1210       (error
1211        (let* ((err-str (format "Failed to launch syntax check process '%s' with args %s: %s"
1212                                cmd args (error-message-string err)))
1213               (source-file-name buffer-file-name)
1214               (cleanup-f        (flymake-get-cleanup-function source-file-name)))
1215          (flymake-log 0 err-str)
1216          (funcall cleanup-f (current-buffer))
1217          (flymake-report-fatal-status "PROCERR" err-str))))))
1218
1219 (defun flymake-kill-process (pid &optional rest)
1220   "Kill process PID."
1221   (signal-process pid 9)
1222   (let* ((buffer-name (flymake-get-source-buffer-name pid)))
1223     (when (and buffer-name (get-buffer buffer-name))
1224       (with-current-buffer (get-buffer buffer-name)
1225         (setq flymake-check-was-interrupted t))))
1226   (flymake-log 1 "killed process %d" pid))
1227
1228 (defun flymake-stop-all-syntax-checks ()
1229   "Kill all syntax check processes."
1230   (interactive)
1231   (let ((pids  (copy-hash-table flymake-pid-to-names)))
1232     (maphash 'flymake-kill-process pids)))
1233
1234 (defun flymake-compilation-is-running ()
1235   (and (boundp 'compilation-in-progress)
1236        compilation-in-progress))
1237
1238 (defun flymake-compile ()
1239   "Kill all flymake syntax checks, start compilation."
1240   (interactive)
1241   (flymake-stop-all-syntax-checks)
1242   (call-interactively 'compile))
1243
1244 (defvar flymake-is-running nil
1245   "If t, flymake syntax check process is running for the current buffer.")
1246
1247 (make-variable-buffer-local 'flymake-is-running)
1248
1249 (defvar flymake-timer nil
1250   "Timer for starting syntax check.")
1251
1252 (make-variable-buffer-local 'flymake-timer)
1253
1254 (defvar flymake-last-change-time nil
1255   "Time of last buffer change.")
1256
1257 (make-variable-buffer-local 'flymake-last-change-time)
1258
1259 (defvar flymake-check-start-time nil
1260   "Time at which syntax check was started.")
1261
1262 (make-variable-buffer-local 'flymake-check-start-time)
1263
1264 (defvar flymake-check-was-interrupted nil
1265   "Non-nil if syntax check was killed by `flymake-compile'.")
1266
1267 (make-variable-buffer-local 'flymake-check-was-interrupted)
1268
1269 (defcustom flymake-no-changes-timeout 0.5
1270   "Time to wait after last change before starting compilation."
1271   :group 'flymake
1272   :type 'number)
1273
1274 (defun flymake-on-timer-event (buffer)
1275   "Start a syntax check for buffer BUFFER if necessary."
1276   (when (bufferp buffer)
1277     (with-current-buffer buffer
1278       (when (and (not flymake-is-running)
1279                  flymake-last-change-time
1280                  (> (flymake-float-time) (+ flymake-no-changes-timeout flymake-last-change-time)))
1281
1282         (setq flymake-last-change-time nil)
1283         (flymake-log 3 "starting syntax check as more than 1 second passed since last change")
1284         (flymake-start-syntax-check)))))
1285
1286 (defun flymake-current-line-no ()
1287   "Return number of current line in current buffer."
1288   (interactive)
1289   (let ((beg  (point-min))
1290         (end  (if (= (point) (point-max)) (point) (1+ (point)))))
1291     (count-lines beg end)))
1292
1293 (defun flymake-count-lines ()
1294   "Return number of lines in buffer BUFFER."
1295   (count-lines (point-min) (point-max)))
1296
1297 (defun flymake-get-point-pixel-pos ()
1298   "Return point position in pixels: (x, y)."
1299   (let ((mouse-pos  (mouse-position))
1300         (pixel-pos  nil)
1301         (ret        nil))
1302     (if (car (cdr mouse-pos))
1303         (progn
1304           (set-mouse-position (flymake-selected-frame) (current-column) (flymake-current-row))
1305           (setq pixel-pos (mouse-pixel-position))
1306           (set-mouse-position (car mouse-pos) (car (cdr mouse-pos)) (cdr (cdr mouse-pos)))
1307           (setq ret (list (car (cdr pixel-pos)) (cdr (cdr pixel-pos)))))
1308       (progn
1309         (setq ret '(0 0))))
1310     (flymake-log 3 "mouse pos is %s" ret)
1311     ret))
1312
1313 (defun flymake-display-err-menu-for-current-line ()
1314   "Display a menu with errors/warnings for current line if it has errors and/or warnings."
1315   (interactive)
1316   (let* ((line-no             (flymake-current-line-no))
1317          (line-err-info-list  (nth 0 (flymake-find-err-info flymake-err-info line-no)))
1318          (menu-data           (flymake-make-err-menu-data line-no line-err-info-list))
1319          (choice              nil)
1320          (menu-pos            (list (flymake-get-point-pixel-pos) (selected-window))))
1321     (if menu-data
1322         (progn
1323           (setq choice (flymake-popup-menu menu-pos menu-data))
1324           (flymake-log 3 "choice=%s" choice)
1325           (when choice
1326             (eval choice)))
1327       (flymake-log 1 "no errors for line %d" line-no))))
1328
1329 (defun flymake-make-err-menu-data (line-no line-err-info-list)
1330   "Make a (menu-title (item-title item-action)*) list with errors/warnings from LINE-ERR-INFO-LIST."
1331   (let* ((menu-items  nil))
1332     (when line-err-info-list
1333       (let* ((count           (length line-err-info-list))
1334              (menu-item-text  nil))
1335         (while (> count 0)
1336           (setq menu-item-text (flymake-ler-get-text (nth (1- count) line-err-info-list)))
1337           (let* ((file       (flymake-ler-get-file (nth (1- count) line-err-info-list)))
1338                  (full-file  (flymake-ler-get-full-file (nth (1- count) line-err-info-list)))
1339                  (line       (flymake-ler-get-line (nth (1- count) line-err-info-list))))
1340             (if file
1341                 (setq menu-item-text (concat menu-item-text " - " file "(" (format "%d" line) ")")))
1342             (setq menu-items (cons (list menu-item-text
1343                                          (if file (list 'flymake-goto-file-and-line full-file line) nil))
1344                                    menu-items)))
1345           (setq count (1- count)))
1346         (flymake-log 3 "created menu-items with %d item(s)" (length menu-items))))
1347     (if menu-items
1348         (let* ((menu-title  (format "Line %d: %d error(s), %d warning(s)" line-no
1349                                     (flymake-get-line-err-count line-err-info-list "e")
1350                                     (flymake-get-line-err-count line-err-info-list "w"))))
1351           (list menu-title menu-items))
1352       nil)))
1353
1354 (defun flymake-goto-file-and-line (file line)
1355   "Try to get buffer for FILE and goto line LINE in it."
1356   (if (not (file-exists-p file))
1357       (flymake-log 1 "file %s does not exists" file)
1358     (progn
1359       (find-file file)
1360       (goto-line line))))
1361
1362 ;; flymake minor mode declarations
1363 (defvar flymake-mode-line nil)
1364
1365 (make-variable-buffer-local 'flymake-mode-line)
1366
1367 (defvar flymake-mode-line-e-w nil)
1368
1369 (make-variable-buffer-local 'flymake-mode-line-e-w)
1370
1371 (defvar flymake-mode-line-status nil)
1372
1373 (make-variable-buffer-local 'flymake-mode-line-status)
1374
1375 (defun flymake-report-status (e-w &optional status)
1376   "Show status in mode line."
1377   (when e-w
1378     (setq flymake-mode-line-e-w e-w))
1379   (when status
1380     (setq flymake-mode-line-status status))
1381   (let* ((mode-line " Flymake"))
1382     (when (> (length flymake-mode-line-e-w) 0)
1383       (setq mode-line (concat mode-line ":" flymake-mode-line-e-w)))
1384     (setq mode-line (concat mode-line flymake-mode-line-status))
1385     (setq flymake-mode-line mode-line)
1386     (force-mode-line-update)))
1387
1388 (defun flymake-display-warning (warning)
1389   "Display a warning to user."
1390   (message-box warning))
1391
1392 (defcustom flymake-gui-warnings-enabled t
1393   "Enables/disables GUI warnings."
1394   :group 'flymake
1395   :type 'boolean)
1396
1397 (defun flymake-report-fatal-status (status warning)
1398   "Display a warning and switch flymake mode off."
1399   (when flymake-gui-warnings-enabled
1400     (flymake-display-warning (format "Flymake: %s. Flymake will be switched OFF" warning))
1401     )
1402   (flymake-mode 0)
1403   (flymake-log 0 "switched OFF Flymake mode for buffer %s due to fatal status %s, warning %s"
1404                (buffer-name) status warning))
1405
1406 (defcustom flymake-start-syntax-check-on-find-file t
1407   "Start syntax check on find file."
1408   :group 'flymake
1409   :type 'boolean)
1410
1411 ;;;###autoload
1412 (define-minor-mode flymake-mode
1413   "Minor mode to do on-the-fly syntax checking.
1414 When called interactively, toggles the minor mode.
1415 With arg, turn Flymake mode on if and only if arg is positive."
1416   :group 'flymake :lighter flymake-mode-line
1417   (cond
1418
1419    ;; Turning the mode ON.
1420    (flymake-mode
1421     (if (not (flymake-can-syntax-check-file buffer-file-name))
1422         (flymake-log 2 "flymake cannot check syntax in buffer %s" (buffer-name))
1423       (add-hook 'after-change-functions 'flymake-after-change-function nil t)
1424       (add-hook 'after-save-hook 'flymake-after-save-hook nil t)
1425       (add-hook 'kill-buffer-hook 'flymake-kill-buffer-hook nil t)
1426       ;;+(add-hook 'find-file-hook 'flymake-find-file-hook)
1427
1428       (flymake-report-status "" "")
1429
1430       (setq flymake-timer
1431             (run-at-time nil 1 'flymake-on-timer-event (current-buffer)))
1432
1433       (when flymake-start-syntax-check-on-find-file
1434         (flymake-start-syntax-check))))
1435
1436    ;; Turning the mode OFF.
1437    (t
1438     (remove-hook 'after-change-functions 'flymake-after-change-function t)
1439     (remove-hook 'after-save-hook 'flymake-after-save-hook t)
1440     (remove-hook 'kill-buffer-hook 'flymake-kill-buffer-hook t)
1441     ;;+(remove-hook 'find-file-hook (function flymake-find-file-hook) t)
1442
1443     (flymake-delete-own-overlays)
1444
1445     (when flymake-timer
1446       (cancel-timer flymake-timer)
1447       (setq flymake-timer nil))
1448
1449     (setq flymake-is-running nil))))
1450
1451 ;;;###autoload
1452 (defun flymake-mode-on ()
1453   "Turn flymake mode on."
1454   (flymake-mode 1)
1455   (flymake-log 1 "flymake mode turned ON for buffer %s" (buffer-name)))
1456
1457 ;;;###autoload
1458 (defun flymake-mode-off ()
1459   "Turn flymake mode off."
1460   (flymake-mode 0)
1461   (flymake-log 1 "flymake mode turned OFF for buffer %s" (buffer-name)))
1462
1463 (defcustom flymake-start-syntax-check-on-newline t
1464   "Start syntax check if newline char was added/removed from the buffer."
1465   :group 'flymake
1466   :type 'boolean)
1467
1468 (defun flymake-after-change-function (start stop len)
1469   "Start syntax check for current buffer if it isn't already running."
1470   ;;+(flymake-log 0 "setting change time to %s" (flymake-float-time))
1471   (let((new-text (buffer-substring start stop)))
1472     (when (and flymake-start-syntax-check-on-newline (equal new-text "\n"))
1473       (flymake-log 3 "starting syntax check as new-line has been seen")
1474       (flymake-start-syntax-check))
1475     (setq flymake-last-change-time (flymake-float-time))))
1476
1477 (defun flymake-after-save-hook ()
1478   (if (local-variable-p 'flymake-mode (current-buffer)) ; (???) other way to determine whether flymake is active in buffer being saved?
1479       (progn
1480         (flymake-log 3 "starting syntax check as buffer was saved")
1481         (flymake-start-syntax-check)))) ; no more mode 3. cannot start check if mode 3 (to temp copies) is active - (???)
1482
1483 (defun flymake-kill-buffer-hook ()
1484   (when flymake-timer
1485     (cancel-timer flymake-timer)
1486     (setq flymake-timer nil)))
1487
1488 (defun flymake-find-file-hook ()
1489   ;;+(when flymake-start-syntax-check-on-find-file
1490   ;;+    (flymake-log 3 "starting syntax check on file open")
1491   ;;+    (flymake-start-syntax-check)
1492   ;;+)
1493   (when (and (not (local-variable-p 'flymake-mode (current-buffer)))
1494              (flymake-can-syntax-check-file buffer-file-name))
1495     (flymake-mode)
1496     (flymake-log 3 "automatically turned ON flymake mode")))
1497
1498 (defun flymake-get-first-err-line-no (err-info-list)
1499   "Return first line with error."
1500   (when err-info-list
1501     (flymake-er-get-line (car err-info-list))))
1502
1503 (defun flymake-get-last-err-line-no (err-info-list)
1504   "Return last line with error."
1505   (when err-info-list
1506     (flymake-er-get-line (nth (1- (length err-info-list)) err-info-list))))
1507
1508 (defun flymake-get-next-err-line-no (err-info-list line-no)
1509   "Return next line with error."
1510   (when err-info-list
1511     (let* ((count  (length err-info-list))
1512            (idx    0))
1513       (while (and (< idx count) (>= line-no (flymake-er-get-line (nth idx err-info-list))))
1514         (setq idx (1+ idx)))
1515       (if (< idx count)
1516           (flymake-er-get-line (nth idx err-info-list))))))
1517
1518 (defun flymake-get-prev-err-line-no (err-info-list line-no)
1519   "Return previous line with error."
1520   (when err-info-list
1521     (let* ((count (length err-info-list)))
1522       (while (and (> count 0) (<= line-no (flymake-er-get-line (nth (1- count) err-info-list))))
1523         (setq count (1- count)))
1524       (if (> count 0)
1525           (flymake-er-get-line (nth (1- count) err-info-list))))))
1526
1527 (defun flymake-skip-whitespace ()
1528   "Move forward until non-whitespace is reached."
1529   (while (looking-at "[ \t]")
1530     (forward-char)))
1531
1532 (defun flymake-goto-line (line-no)
1533   "Go to line LINE-NO, then skip whitespace."
1534   (goto-line line-no)
1535   (flymake-skip-whitespace))
1536
1537 (defun flymake-goto-next-error ()
1538   "Go to next error in err ring."
1539   (interactive)
1540   (let ((line-no (flymake-get-next-err-line-no flymake-err-info (flymake-current-line-no))))
1541     (when (not line-no)
1542       (setq line-no (flymake-get-first-err-line-no flymake-err-info))
1543       (flymake-log 1 "passed end of file"))
1544     (if line-no
1545         (flymake-goto-line line-no)
1546       (flymake-log 1 "no errors in current buffer"))))
1547
1548 (defun flymake-goto-prev-error ()
1549   "Go to previous error in err ring."
1550   (interactive)
1551   (let ((line-no (flymake-get-prev-err-line-no flymake-err-info (flymake-current-line-no))))
1552     (when (not line-no)
1553       (setq line-no (flymake-get-last-err-line-no flymake-err-info))
1554       (flymake-log 1 "passed beginning of file"))
1555     (if line-no
1556         (flymake-goto-line line-no)
1557       (flymake-log 1 "no errors in current buffer"))))
1558
1559 (defun flymake-patch-err-text (string)
1560   (if (string-match "^[\n\t :0-9]*\\(.*\\)$" string)
1561       (match-string 1 string)
1562     string))
1563
1564 ;;;; general init-cleanup and helper routines
1565 (defun flymake-create-temp-inplace (file-name prefix)
1566   (unless (stringp file-name)
1567     (error "Invalid file-name"))
1568   (or prefix
1569       (setq prefix "flymake"))
1570   (let* ((temp-name   (concat (file-name-sans-extension file-name)
1571                               "_" prefix
1572                               (and (file-name-extension file-name)
1573                                    (concat "." (file-name-extension file-name))))))
1574     (flymake-log 3 "create-temp-inplace: file=%s temp=%s" file-name temp-name)
1575     temp-name))
1576
1577 (defun flymake-create-temp-with-folder-structure (file-name prefix)
1578   (unless (stringp file-name)
1579     (error "Invalid file-name"))
1580
1581   (let* ((dir       (file-name-directory file-name))
1582          (slash-pos (string-match "/" dir))
1583          (temp-dir  (concat (file-name-as-directory (flymake-get-temp-dir)) (substring dir (1+ slash-pos)))))
1584
1585     (file-truename (concat (file-name-as-directory temp-dir)
1586                            (file-name-nondirectory file-name)))))
1587
1588 (defun flymake-strrchr (str ch)
1589   (let* ((count  (length str))
1590          (pos    nil))
1591     (while (and (not pos) (> count 0))
1592       (if (= ch (elt str (1- count)))
1593           (setq pos (1- count)))
1594       (setq count (1- count)))
1595     pos))
1596
1597 (defun flymake-delete-temp-directory (dir-name)
1598   "Attempt to delete temp dir created by `flymake-create-temp-with-folder-structure', do not fail on error."
1599   (let* ((temp-dir    (flymake-get-temp-dir))
1600          (suffix      (substring dir-name (1+ (length temp-dir))))
1601          (slash-pos   nil))
1602
1603     (while (> (length suffix) 0)
1604       ;;+(flymake-log 0 "suffix=%s" suffix)
1605       (flymake-safe-delete-directory (file-truename (concat (file-name-as-directory temp-dir) suffix)))
1606       (setq slash-pos (flymake-strrchr suffix (string-to-char "/")))
1607       (if slash-pos
1608           (setq suffix (substring suffix 0 slash-pos))
1609         (setq suffix "")))))
1610
1611 (defun flymake-init-create-temp-buffer-copy (buffer create-temp-f)
1612   "Make a temporary copy of the current buffer, save its name in buffer data and return the name."
1613   (let*  ((source-file-name       (buffer-file-name buffer))
1614           (temp-source-file-name  (funcall create-temp-f source-file-name "flymake")))
1615
1616     (flymake-save-buffer-in-file buffer temp-source-file-name)
1617     (flymake-set-buffer-value buffer "temp-source-file-name" temp-source-file-name)
1618     temp-source-file-name))
1619
1620 (defun flymake-simple-cleanup (buffer)
1621   "Do cleanup after `flymake-init-create-temp-buffer-copy'.
1622 Delete temp file."
1623   (let* ((temp-source-file-name (flymake-get-buffer-value buffer "temp-source-file-name")))
1624     (flymake-safe-delete-file temp-source-file-name)
1625     (with-current-buffer buffer
1626       (setq flymake-last-change-time nil))))
1627
1628 (defun flymake-get-real-file-name (buffer file-name-from-err-msg)
1629   "Translate file name from error message to \"real\" file name.
1630 Return full-name.  Names are real, not patched."
1631   (let* ((real-name              nil)
1632          (source-file-name       (buffer-file-name buffer))
1633          (master-file-name       (flymake-get-buffer-value buffer "master-file-name"))
1634          (temp-source-file-name  (flymake-get-buffer-value buffer "temp-source-file-name"))
1635          (temp-master-file-name  (flymake-get-buffer-value buffer "temp-master-file-name"))
1636          (base-dirs              (list (flymake-get-buffer-value buffer "base-dir")
1637                                        (file-name-directory source-file-name)
1638                                        (if master-file-name (file-name-directory master-file-name) nil)))
1639          (files                  (list (list source-file-name       source-file-name)
1640                                        (list temp-source-file-name  source-file-name)
1641                                        (list master-file-name       master-file-name)
1642                                        (list temp-master-file-name  master-file-name))))
1643
1644     (when (equal 0 (length file-name-from-err-msg))
1645       (setq file-name-from-err-msg source-file-name))
1646
1647     (setq real-name (flymake-get-full-patched-file-name file-name-from-err-msg base-dirs files))
1648     ;; if real-name is nil, than file name from err msg is none of the files we've patched
1649     (if (not real-name)
1650         (setq real-name (flymake-get-full-nonpatched-file-name file-name-from-err-msg base-dirs)))
1651     (if (not real-name)
1652         (setq real-name file-name-from-err-msg))
1653     (setq real-name (flymake-fix-file-name real-name))
1654     (flymake-log 3 "get-real-file-name: file-name=%s real-name=%s" file-name-from-err-msg real-name)
1655     real-name))
1656
1657 (defun flymake-get-full-patched-file-name (file-name-from-err-msg base-dirs files)
1658   (let* ((base-dirs-count  (length base-dirs))
1659          (file-count       (length files))
1660          (real-name        nil))
1661
1662     (while (and (not real-name) (> base-dirs-count 0))
1663       (setq file-count (length files))
1664       (while (and (not real-name) (> file-count 0))
1665         (let* ((this-dir        (nth (1- base-dirs-count) base-dirs))
1666                (this-file       (nth 0 (nth (1- file-count) files)))
1667                (this-real-name  (nth 1 (nth (1- file-count) files))))
1668           ;;+(flymake-log 0 "this-dir=%s this-file=%s this-real=%s msg-file=%s" this-dir this-file this-real-name file-name-from-err-msg)
1669           (when (and this-dir this-file (flymake-same-files
1670                                          (expand-file-name file-name-from-err-msg this-dir)
1671                                          this-file))
1672             (setq real-name this-real-name)))
1673         (setq file-count (1- file-count)))
1674       (setq base-dirs-count (1- base-dirs-count)))
1675     real-name))
1676
1677 (defun flymake-get-full-nonpatched-file-name (file-name-from-err-msg base-dirs)
1678   (let* ((real-name  nil))
1679     (if (file-name-absolute-p file-name-from-err-msg)
1680         (setq real-name file-name-from-err-msg)
1681       (let* ((base-dirs-count  (length base-dirs)))
1682         (while (and (not real-name) (> base-dirs-count 0))
1683           (let* ((full-name (expand-file-name file-name-from-err-msg
1684                                               (nth (1- base-dirs-count) base-dirs))))
1685             (if (file-exists-p full-name)
1686                 (setq real-name full-name))
1687             (setq base-dirs-count (1- base-dirs-count))))))
1688     real-name))
1689
1690 (defun flymake-init-find-buildfile-dir (buffer source-file-name buildfile-name)
1691   "Find buildfile, store its dir in buffer data and return its dir, if found."
1692   (let* ((buildfile-dir  (flymake-find-buildfile buildfile-name
1693                                                  (file-name-directory source-file-name)
1694                                                  flymake-buildfile-dirs)))
1695     (if (not buildfile-dir)
1696         (progn
1697           (flymake-log 1 "no buildfile (%s) for %s" buildfile-name source-file-name)
1698           (with-current-buffer buffer
1699             (flymake-report-fatal-status "NOMK" (format "No buildfile (%s) found for %s" buildfile-name source-file-name)))
1700           )
1701       (progn
1702         (flymake-set-buffer-value buffer "base-dir" buildfile-dir)))
1703     buildfile-dir))
1704
1705 (defun flymake-init-create-temp-source-and-master-buffer-copy (buffer get-incl-dirs-f create-temp-f master-file-masks include-regexp-list)
1706   "Find master file (or buffer), create it's copy along with a copy of the source file."
1707   (let* ((source-file-name       (buffer-file-name buffer))
1708          (temp-source-file-name  (flymake-init-create-temp-buffer-copy buffer create-temp-f))
1709          (master-file-name       nil)
1710          (temp-master-file-name  nil)
1711          (master-and-temp-master (flymake-create-master-file
1712                                   source-file-name temp-source-file-name
1713                                   get-incl-dirs-f create-temp-f
1714                                   master-file-masks include-regexp-list)))
1715
1716     (if (not master-and-temp-master)
1717         (progn
1718           (flymake-log 1 "cannot find master file for %s" source-file-name)
1719           (when (bufferp buffer)
1720             (with-current-buffer buffer
1721               (flymake-report-status "!" "")))  ; NOMASTER
1722           )
1723       (progn
1724         (setq master-file-name       (nth 0 master-and-temp-master))
1725         (setq temp-master-file-name  (nth 1 master-and-temp-master))
1726         (flymake-set-buffer-value buffer "master-file-name"      master-file-name)
1727         (flymake-set-buffer-value buffer "temp-master-file-name" temp-master-file-name)
1728         ))
1729     temp-master-file-name))
1730
1731 (defun flymake-master-cleanup (buffer)
1732   (flymake-simple-cleanup buffer)
1733   (flymake-safe-delete-file (flymake-get-buffer-value buffer "temp-master-file-name")))
1734
1735 ;;;; make-specific init-cleanup routines
1736 (defun flymake-get-syntax-check-program-args (source-file-name base-dir use-relative-base-dir use-relative-source get-cmd-line-f)
1737   "Create a command line for syntax check using GET-CMD-LINE-F."
1738   (let* ((my-base-dir  base-dir)
1739          (my-source    source-file-name))
1740
1741     (when use-relative-base-dir
1742       (setq my-base-dir (flymake-build-relative-filename (file-name-directory source-file-name) base-dir)))
1743
1744     (when use-relative-source
1745       (setq my-source (concat (flymake-build-relative-filename base-dir (file-name-directory source-file-name))
1746                               (file-name-nondirectory source-file-name))))
1747     (funcall get-cmd-line-f my-source my-base-dir)))
1748
1749 (defun flymake-get-make-cmdline (source base-dir)
1750   (list "make"
1751         (list "-s"
1752               "-C"
1753               base-dir
1754               (concat "CHK_SOURCES=" source)
1755               "SYNTAX_CHECK_MODE=1"
1756               "check-syntax")))
1757
1758 (defun flymake-get-ant-cmdline (source base-dir)
1759   (list "ant"
1760         (list "-buildfile"
1761               (concat base-dir "/" "build.xml")
1762               (concat "-DCHK_SOURCES=" source)
1763               "check-syntax")))
1764
1765 (defun flymake-simple-make-init-impl (buffer create-temp-f use-relative-base-dir use-relative-source build-file-name get-cmdline-f)
1766   "Create syntax check command line for a directly checked source file.
1767 Use CREATE-TEMP-F for creating temp copy."
1768   (let* ((args nil)
1769          (source-file-name   (buffer-file-name buffer))
1770          (buildfile-dir      (flymake-init-find-buildfile-dir buffer source-file-name build-file-name)))
1771     (if buildfile-dir
1772         (let* ((temp-source-file-name  (flymake-init-create-temp-buffer-copy buffer create-temp-f)))
1773           (setq args (flymake-get-syntax-check-program-args temp-source-file-name buildfile-dir
1774                                                             use-relative-base-dir use-relative-source
1775                                                             get-cmdline-f))))
1776     args))
1777
1778 (defun flymake-simple-make-init (buffer)
1779   (flymake-simple-make-init-impl buffer 'flymake-create-temp-inplace t t "Makefile" 'flymake-get-make-cmdline))
1780
1781 (defun flymake-master-make-init (buffer get-incl-dirs-f master-file-masks include-regexp-list)
1782   "Create make command line for a source file checked via master file compilation."
1783   (let* ((make-args nil)
1784          (temp-master-file-name (flymake-init-create-temp-source-and-master-buffer-copy
1785                                  buffer get-incl-dirs-f 'flymake-create-temp-inplace
1786                                  master-file-masks include-regexp-list)))
1787     (when temp-master-file-name
1788       (let* ((buildfile-dir (flymake-init-find-buildfile-dir buffer temp-master-file-name "Makefile")))
1789         (if  buildfile-dir
1790             (setq make-args (flymake-get-syntax-check-program-args
1791                              temp-master-file-name buildfile-dir nil nil 'flymake-get-make-cmdline)))))
1792     make-args))
1793
1794 (defun flymake-find-make-buildfile (source-dir)
1795   (flymake-find-buildfile "Makefile" source-dir flymake-buildfile-dirs))
1796
1797 ;;;; .h/make specific
1798 (defun flymake-master-make-header-init (buffer)
1799   (flymake-master-make-init buffer
1800                             'flymake-get-include-dirs
1801                             '(".+\\.cpp$" ".+\\.c$")
1802                             '("[ \t]*#[ \t]*include[ \t]*\"\\([\w0-9/\\_\.]*[/\\]*\\)\\(%s\\)\"" 1 2)))
1803
1804 ;;;; .java/make specific
1805 (defun flymake-simple-make-java-init (buffer)
1806   (flymake-simple-make-init-impl buffer 'flymake-create-temp-with-folder-structure nil nil "Makefile" 'flymake-get-make-cmdline))
1807
1808 (defun flymake-simple-ant-java-init (buffer)
1809   (flymake-simple-make-init-impl buffer 'flymake-create-temp-with-folder-structure nil nil "build.xml" 'flymake-get-ant-cmdline))
1810
1811 (defun flymake-simple-java-cleanup (buffer)
1812   "Cleanup after `flymake-simple-make-java-init' -- delete temp file and dirs."
1813   (let* ((temp-source-file-name (flymake-get-buffer-value buffer "temp-source-file-name")))
1814     (flymake-safe-delete-file temp-source-file-name)
1815     (when temp-source-file-name
1816       (flymake-delete-temp-directory (file-name-directory temp-source-file-name)))))
1817
1818 ;;;; perl-specific init-cleanup routines
1819 (defun flymake-perl-init (buffer)
1820   (let* ((temp-file   (flymake-init-create-temp-buffer-copy
1821                        buffer 'flymake-create-temp-inplace))
1822          (local-file  (concat (flymake-build-relative-filename
1823                                (file-name-directory buffer-file-name)
1824                                (file-name-directory temp-file))
1825                               (file-name-nondirectory temp-file))))
1826     (list "perl" (list "-wc " local-file))))
1827
1828 ;;;; tex-specific init-cleanup routines
1829 (defun flymake-get-tex-args (file-name)
1830   ;;(list "latex" (list "-c-style-errors" file-name))
1831   (list "texify" (list "--pdf" "--tex-option=-c-style-errors" file-name)))
1832
1833 (defun flymake-simple-tex-init (buffer)
1834   (flymake-get-tex-args (flymake-init-create-temp-buffer-copy buffer 'flymake-create-temp-inplace)))
1835
1836 (defun flymake-master-tex-init (buffer)
1837   (let* ((temp-master-file-name (flymake-init-create-temp-source-and-master-buffer-copy
1838                                  buffer 'flymake-get-include-dirs-dot 'flymake-create-temp-inplace
1839                                  '(".+\\.tex$")
1840                                  '("[ \t]*\\input[ \t]*{\\(.*\\)\\(%s\\)}" 1 2))))
1841     (when temp-master-file-name
1842       (flymake-get-tex-args temp-master-file-name))))
1843
1844 (defun flymake-get-include-dirs-dot (base-dir)
1845   '("."))
1846
1847 ;;;; xml-specific init-cleanup routines
1848 (defun flymake-xml-init (buffer)
1849   (list "xml" (list "val" (flymake-init-create-temp-buffer-copy buffer 'flymake-create-temp-inplace))))
1850
1851 (provide 'flymake)
1852
1853 ;; arch-tag: 8f0d6090-061d-4cac-8862-7c151c4a02dd
1854 ;;; flymake.el ends here