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   (let ((contents     nil)
 520         (temp-buffer  nil))
 521     (with-current-buffer buffer
 522       (setq contents (buffer-string))
 523
 524       (setq temp-buffer (get-buffer-create (generate-new-buffer-name (concat "flymake:" (buffer-name buffer)))))
 525       (set-buffer temp-buffer)
 526       (insert contents))
 527     temp-buffer))
 528
 529 (defun flymake-check-include (source-file-name inc-path inc-name include-dirs)
 530   "Check if SOURCE-FILE-NAME can be found in include path.
 531 Return t if it can be found via include path using INC-PATH and INC-NAME."
 532   (if (file-name-absolute-p inc-path)
 533       (flymake-same-files source-file-name (concat inc-path "/" inc-name))
 534     (let* ((file-name  nil)
 535            (found      nil))
 536       (while (and (not found) include-dirs)
 537         (setq file-name (concat (file-name-directory source-file-name)
 538                                 "/" (car include-dirs)))
 539         (if (> (length inc-path) 0)
 540             (setq file-name (concat file-name "/" inc-path)))
 541         (setq file-name (concat file-name "/" inc-name))
 542         (when (flymake-same-files source-file-name file-name)
 543           (setq found t))
 544         (setq include-dirs (cdr include-dirs)))
 545       found)))
 546
 547 (defun flymake-find-buffer-for-file (file-name)
 548   "Check if there exists a buffer visiting FILE-NAME.
 549 Return t if so, nil if not."
 550   (let ((buffer-name (get-file-buffer file-name)))
 551     (if buffer-name
 552         (get-buffer buffer-name))))
 553
 554 (defun flymake-create-master-file (source-file-name patched-source-file-name get-incl-dirs-f create-temp-f masks include-regexp-list)
 555   "Save SOURCE-FILE-NAME with a different name.
 556 Find master file, patch and save it."
 557   (let* ((possible-master-files     (flymake-find-possible-master-files source-file-name flymake-master-file-dirs masks))
 558          (master-file-count         (length possible-master-files))
 559          (idx                       0)
 560          (temp-buffer               nil)
 561          (master-file-name          nil)
 562          (patched-master-file-name  nil)
 563          (found                     nil))
 564
 565     (while (and (not found) (< idx master-file-count))
 566       (setq master-file-name (nth idx possible-master-files))
 567       (setq patched-master-file-name (funcall create-temp-f master-file-name "flymake_master"))
 568       (if (flymake-find-buffer-for-file master-file-name)
 569           (setq temp-buffer (flymake-copy-buffer-to-temp-buffer (flymake-find-buffer-for-file master-file-name)))
 570         (setq temp-buffer (flymake-read-file-to-temp-buffer master-file-name)))
 571       (setq found
 572             (flymake-check-patch-master-file-buffer
 573              temp-buffer
 574              master-file-name
 575              patched-master-file-name
 576              source-file-name
 577              patched-source-file-name
 578              (funcall get-incl-dirs-f (file-name-directory master-file-name))
 579              include-regexp-list))
 580       (setq idx (1+ idx)))
 581     (if found
 582         (list master-file-name patched-master-file-name)
 583       (progn
 584         (flymake-log 3 "none of %d master file(s) checked includes %s" master-file-count
 585                      (file-name-nondirectory source-file-name))
 586         nil))))
 587
 588 (defun flymake-save-buffer-in-file (buffer file-name)
 589   (or buffer
 590       (error "Invalid buffer"))
 591   (with-current-buffer buffer
 592     (save-restriction
 593       (widen)
 594       (make-directory (file-name-directory file-name) 1)
 595       (write-region (point-min) (point-max) file-name nil 566)))
 596   (flymake-log 3 "saved buffer %s in file %s" (buffer-name buffer) file-name))
 597
 598 (defun flymake-save-string-to-file (file-name data)
 599   "Save string DATA to file FILE-NAME."
 600   (write-region data nil file-name nil 566))
 601
 602 (defun flymake-read-file-to-string (file-name)
 603   "Read contents of file FILE-NAME and return as a string."
 604   (with-temp-buffer
 605     (insert-file-contents file-name)
 606     (buffer-substring (point-min) (point-max))))
 607
 608 (defun flymake-process-filter (process output)
 609   "Parse OUTPUT and highlight error lines.
 610 It's flymake process filter."
 611   (let* ((pid               (process-id process))
 612          (source-buffer     (get-buffer (flymake-get-source-buffer-name pid))))
 613
 614     (flymake-log 3 "received %d byte(s) of output from process %d" (length output) pid)
 615     (when source-buffer
 616       (flymake-parse-output-and-residual source-buffer output))))
 617
 618 (defun flymake-process-sentinel (process event)
 619   "Sentinel for syntax check buffers."
 620   (if (memq (process-status process) '(signal exit))
 621       (let*((exit-status       (process-exit-status process))
 622             (command           (process-command process))
 623             (pid               (process-id process))
 624             (source-buffer     (get-buffer (flymake-get-source-buffer-name pid)))
 625             (cleanup-f         (flymake-get-cleanup-function (buffer-file-name source-buffer))))
 626
 627         (flymake-log 2 "process %d exited with code %d" pid exit-status)
 628         (condition-case err
 629             (progn
 630               (flymake-log 3 "cleaning up using %s" cleanup-f)
 631               (funcall cleanup-f source-buffer)
 632
 633               (flymake-unreg-names pid)
 634               (delete-process process)
 635
 636               (when source-buffer
 637                 (with-current-buffer source-buffer
 638
 639                   (flymake-parse-residual source-buffer)
 640                   (flymake-post-syntax-check source-buffer exit-status command)
 641                   (setq flymake-is-running nil))))
 642           (error
 643            (let ((err-str (format "Error in process sentinel for buffer %s: %s"
 644                                   source-buffer (error-message-string err))))
 645              (flymake-log 0 err-str)
 646              (with-current-buffer source-buffer
 647                (setq flymake-is-running nil))))))))
 648
 649 (defun flymake-post-syntax-check (source-buffer exit-status command)
 650   (with-current-buffer source-buffer
 651     (setq flymake-err-info flymake-new-err-info)
 652     (setq flymake-new-err-info nil)
 653     (setq flymake-err-info
 654           (flymake-fix-line-numbers
 655            flymake-err-info 1 (flymake-count-lines source-buffer))))
 656   (flymake-delete-own-overlays source-buffer)
 657   (flymake-highlight-err-lines
 658    source-buffer (with-current-buffer source-buffer flymake-err-info))
 659   (let (err-count warn-count)
 660     (with-current-buffer source-buffer
 661       (setq err-count (flymake-get-err-count flymake-err-info "e"))
 662       (setq warn-count  (flymake-get-err-count flymake-err-info "w"))
 663       (flymake-log 2 "%s: %d error(s), %d warning(s) in %.2f second(s)"
 664                  (buffer-name source-buffer) err-count warn-count
 665                  (- (flymake-float-time) flymake-check-start-time))
 666       (setq flymake-check-start-time nil))
 667
 668     (if (and (equal 0 err-count) (equal 0 warn-count))
 669         (if (equal 0 exit-status)
 670             (flymake-report-status source-buffer "" "") ; PASSED
 671           (if (not (with-current-buffer source-buffer
 672                      flymake-check-was-interrupted))
 673               (flymake-report-fatal-status (current-buffer) "CFGERR"
 674                                            (format "Configuration error has occured while running %s" command))
 675             (flymake-report-status source-buffer nil ""))) ; "STOPPED"
 676       (flymake-report-status source-buffer (format "%d/%d" err-count warn-count) ""))))
 677
 678 (defun flymake-parse-output-and-residual (source-buffer output)
 679   "Split OUTPUT into lines, merge in residual if necessary."
 680   (with-current-buffer source-buffer
 681     (let* ((buffer-residual     flymake-output-residual)
 682            (total-output        (if buffer-residual (concat buffer-residual output) output))
 683            (lines-and-residual  (flymake-split-output total-output))
 684            (lines               (nth 0 lines-and-residual))
 685            (new-residual        (nth 1 lines-and-residual)))
 686       (with-current-buffer source-buffer
 687         (setq flymake-output-residual new-residual)
 688         (setq flymake-new-err-info
 689               (flymake-parse-err-lines
 690                flymake-new-err-info
 691                source-buffer lines))))))
 692
 693 (defun flymake-parse-residual (source-buffer)
 694   "Parse residual if it's non empty."
 695   (with-current-buffer source-buffer
 696     (when flymake-output-residual
 697       (setq flymake-new-err-info
 698             (flymake-parse-err-lines
 699              flymake-new-err-info
 700              source-buffer
 701              (list flymake-output-residual)))
 702       (setq flymake-output-residual nil))))
 703
 704 (defvar flymake-err-info nil
 705   "Sorted list of line numbers and lists of err info in the form (file, err-text).")
 706
 707 (make-variable-buffer-local 'flymake-err-info)
 708
 709 (defun flymake-er-make-er (line-no line-err-info-list)
 710   (list line-no line-err-info-list))
 711
 712 (defun flymake-er-get-line (err-info)
 713   (nth 0 err-info))
 714
 715 (defun flymake-er-get-line-err-info-list (err-info)
 716   (nth 1 err-info))
 717
 718 (defvar flymake-new-err-info nil
 719   "Same as `flymake-err-info', effective when a syntax check is in progress.")
 720
 721 (make-variable-buffer-local 'flymake-new-err-info)
 722
 723 ;; getters/setters for line-err-info: (file, line, type, text).
 724 (defun flymake-ler-make-ler (file line type text &optional full-file)
 725   (list file line type text full-file))
 726
 727 (defun flymake-ler-get-file (line-err-info)
 728   (nth 0 line-err-info))
 729
 730 (defun flymake-ler-get-line (line-err-info)
 731   (nth 1 line-err-info))
 732
 733 (defun flymake-ler-get-type (line-err-info)
 734   (nth 2 line-err-info))
 735
 736 (defun flymake-ler-get-text (line-err-info)
 737   (nth 3 line-err-info))
 738
 739 (defun flymake-ler-get-full-file (line-err-info)
 740   (nth 4 line-err-info))
 741
 742 (defun flymake-ler-set-file (line-err-info file)
 743   (flymake-ler-make-ler file
 744                         (flymake-ler-get-line line-err-info)
 745                         (flymake-ler-get-type line-err-info)
 746                         (flymake-ler-get-text line-err-info)
 747                         (flymake-ler-get-full-file line-err-info)))
 748
 749 (defun flymake-ler-set-full-file (line-err-info full-file)
 750   (flymake-ler-make-ler (flymake-ler-get-file line-err-info)
 751                         (flymake-ler-get-line line-err-info)
 752                         (flymake-ler-get-type line-err-info)
 753                         (flymake-ler-get-text line-err-info)
 754                         full-file))
 755
 756 (defun flymake-ler-set-line (line-err-info line)
 757   (flymake-ler-make-ler (flymake-ler-get-file line-err-info)
 758                         line
 759                         (flymake-ler-get-type line-err-info)
 760                         (flymake-ler-get-text line-err-info)
 761                         (flymake-ler-get-full-file line-err-info)))
 762
 763 (defun flymake-get-line-err-count (line-err-info-list type)
 764   "Return number of errors of specified TYPE.
 765 Value of TYPE is either \"e\" or \"w\"."
 766   (let* ((idx        0)
 767          (count      (length line-err-info-list))
 768          (err-count  0))
 769
 770     (while (< idx count)
 771       (when (equal type (flymake-ler-get-type (nth idx line-err-info-list)))
 772         (setq err-count (1+ err-count)))
 773       (setq idx (1+ idx)))
 774     err-count))
 775
 776 (defun flymake-get-err-count (err-info-list type)
 777   "Return number of errors of specified TYPE for ERR-INFO-LIST."
 778   (let* ((idx        0)
 779          (count      (length err-info-list))
 780          (err-count  0))
 781     (while (< idx count)
 782       (setq err-count (+ err-count (flymake-get-line-err-count (nth 1 (nth idx err-info-list)) type)))
 783       (setq idx (1+ idx)))
 784     err-count))
 785
 786 (defun flymake-fix-line-numbers (err-info-list min-line max-line)
 787   "Replace line numbers with fixed value.
 788 If line-numbers is less than MIN-LINE, set line numbers to MIN-LINE.
 789 If line numbers is greater than MAX-LINE, set line numbers to MAX-LINE.
 790 The reason for this fix is because some compilers might report
 791 line number outside the file being compiled."
 792   (let* ((count     (length err-info-list))
 793          (err-info  nil)
 794          (line      0))
 795     (while (> count 0)
 796       (setq err-info (nth (1- count) err-info-list))
 797       (setq line (flymake-er-get-line err-info))
 798       (when (or (< line min-line) (> line max-line))
 799         (setq line (if (< line min-line) min-line max-line))
 800         (setq err-info-list (flymake-set-at err-info-list (1- count)
 801                                             (flymake-er-make-er line
 802                                                                 (flymake-er-get-line-err-info-list err-info)))))
 803       (setq count (1- count))))
 804   err-info-list)
 805
 806 (defun flymake-highlight-err-lines (buffer err-info-list)
 807   "Highlight error lines in BUFFER using info from ERR-INFO-LIST."
 808   (with-current-buffer buffer
 809    (save-excursion
 810     (let* ((idx    0)
 811            (count  (length err-info-list)))
 812       (while (< idx count)
 813         (flymake-highlight-line (car (nth idx err-info-list))
 814                                 (nth 1 (nth idx err-info-list)))
 815         (setq idx (1+ idx)))))))
 816
 817 (defun flymake-overlay-p (ov)
 818   "Determine whether overlay OV was created by flymake."
 819   (and (overlayp ov) (overlay-get ov 'flymake-overlay)))
 820
 821 (defun flymake-make-overlay (beg end tooltip-text face mouse-face)
 822   "Allocate a flymake overlay in range BEG and END."
 823   (when (not (flymake-region-has-flymake-overlays beg end))
 824     (let ((ov (make-overlay beg end nil t t)))
 825       (overlay-put ov 'face           face)
 826       (overlay-put ov 'mouse-face     mouse-face)
 827       (overlay-put ov 'help-echo      tooltip-text)
 828       (overlay-put ov 'flymake-overlay  t)
 829       (overlay-put ov 'priority 100)
 830       ;;+(flymake-log 3 "created overlay %s" ov)
 831       ov)
 832     (flymake-log 3 "created an overlay at (%d-%d)" beg end)))
 833
 834 (defun flymake-delete-own-overlays (buffer)
 835   "Delete all flymake overlays in BUFFER."
 836   (with-current-buffer buffer
 837     (let ((ov (overlays-in (point-min) (point-max))))
 838       (while (consp ov)
 839         (when (flymake-overlay-p (car ov))
 840           (delete-overlay (car ov))
 841           ;;+(flymake-log 3 "deleted overlay %s" ov)
 842           )
 843         (setq ov (cdr ov))))))
 844
 845 (defun flymake-region-has-flymake-overlays (beg end)
 846   "Check if region specified by BEG and END has overlay.
 847 Return t if it has at least one flymake overlay, nil if no overlay."
 848   (let ((ov                  (overlays-in beg end))
 849         (has-flymake-overlays  nil))
 850     (while (consp ov)
 851       (when (flymake-overlay-p (car ov))
 852         (setq has-flymake-overlays t))
 853       (setq ov (cdr ov)))
 854     has-flymake-overlays))
 855
 856 (defface flymake-errline
 857   ;;+   '((((class color)) (:foreground "OrangeRed" :bold t :underline t))
 858   ;;+   '((((class color)) (:underline "OrangeRed"))
 859   '((((class color)) (:background "LightPink"))
 860     (t (:bold t)))
 861   "Face used for marking error lines."
 862   :group 'flymake)
 863
 864 (defface flymake-warnline
 865   '((((class color)) (:background "LightBlue2"))
 866     (t (:bold t)))
 867   "Face used for marking warning lines."
 868   :group 'flymake)
 869
 870 (defun flymake-highlight-line (line-no line-err-info-list)
 871   "Highlight line LINE-NO in current buffer.
 872 Perhaps use text from LINE-ERR-INFO-LIST to enhance highlighting."
 873   (goto-line line-no)
 874   (let* ((line-beg (flymake-line-beginning-position))
 875          (line-end (flymake-line-end-position))
 876          (beg      line-beg)
 877          (end      line-end)
 878          (tooltip-text (flymake-ler-get-text (nth 0 line-err-info-list)))
 879          (face     nil))
 880
 881     (goto-char line-beg)
 882     (while (looking-at "[ \t]")
 883       (forward-char))
 884
 885     (setq beg (point))
 886
 887     (goto-char line-end)
 888     (while (and (looking-at "[ \t\r\n]") (> (point) 1))
 889       (backward-char))
 890
 891     (setq end (1+ (point)))
 892
 893     (when (<= end beg)
 894       (setq beg line-beg)
 895       (setq end line-end))
 896
 897     (when (= end beg)
 898       (goto-char end)
 899       (forward-line)
 900       (setq end (point)))
 901
 902     (if (> (flymake-get-line-err-count line-err-info-list "e") 0)
 903         (setq face 'flymake-errline)
 904       (setq face 'flymake-warnline))
 905
 906     (flymake-make-overlay beg end tooltip-text face nil)))
 907
 908 (defun flymake-parse-err-lines (err-info-list source-buffer lines)
 909   "Parse err LINES, store info in ERR-INFO-LIST."
 910   (let* ((count              (length lines))
 911          (idx                0)
 912          (line-err-info      nil)
 913          (real-file-name     nil)
 914          (source-file-name   (buffer-file-name source-buffer))
 915          (get-real-file-name-f (flymake-get-real-file-name-function source-file-name)))
 916
 917     (while (< idx count)
 918       (setq line-err-info (flymake-parse-line (nth idx lines)))
 919       (when line-err-info
 920         (setq real-file-name (funcall get-real-file-name-f source-buffer (flymake-ler-get-file line-err-info)))
 921         (setq line-err-info (flymake-ler-set-full-file line-err-info real-file-name))
 922
 923         (if (flymake-same-files real-file-name source-file-name)
 924             (setq line-err-info (flymake-ler-set-file line-err-info nil))
 925           (setq line-err-info (flymake-ler-set-file line-err-info (file-name-nondirectory real-file-name))))
 926
 927         (setq err-info-list (flymake-add-err-info err-info-list line-err-info)))
 928       (flymake-log 3 "parsed '%s', %s line-err-info" (nth idx lines) (if line-err-info "got" "no"))
 929       (setq idx (1+ idx)))
 930     err-info-list))
 931
 932 (defun flymake-split-output (output)
 933   "Split OUTPUT into lines.
 934 Return last one as residual if it does not end with newline char.
 935 Returns ((LINES) RESIDUAL)."
 936   (when (and output (> (length output) 0))
 937     (let* ((lines (flymake-split-string output "[\n\r]+"))
 938            (complete (equal "\n" (char-to-string (aref output (1- (length output))))))
 939            (residual nil))
 940       (when (not complete)
 941         (setq residual (car (last lines)))
 942         (setq lines (butlast lines)))
 943       (list lines residual))))
 944
 945 (defun flymake-reformat-err-line-patterns-from-compile-el (original-list)
 946   "Grab error line patterns from ORIGINAL-LIST in compile.el format.
 947 Convert it to flymake internal format."
 948   (let* ((converted-list '()))
 949     (dolist (item original-list)
 950       (setq item (cdr item))
 951       (let ((regexp (nth 0 item))
 952             (file (nth 1 item))
 953             (line (nth 2 item))
 954             (col (nth 3 item)))
 955         (if (consp file)        (setq file (car file)))
 956         (if (consp line)        (setq line (car line)))
 957         (if (consp col) (setq col (car col)))
 958
 959         (when (not (functionp line))
 960           (setq converted-list (cons (list regexp file line col) converted-list)))))
 961     converted-list))
 962
 963 (require 'compile)
 964
 965 (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
 966   (append
 967    '(
 968      ;; MS Visual C++ 6.0
 969      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)) \: \\(\\(error\\|warning\\|fatal error\\) \\(C[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 970       1 3 nil 4)
 971      ;; jikes
 972      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[0-9]+\:[0-9]+\:[0-9]+\: \\(\\(Error\\|Warning\\|Caution\\|Semantic Error\\):[ \t\n]*\\(.+\\)\\)"
 973       1 3 nil 4)
 974      ;; MS midl
 975      ("midl[ ]*:[ ]*\\(command line error .*\\)"
 976       nil nil nil 1)
 977      ;; MS C#
 978      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\),[0-9]+)\: \\(\\(error\\|warning\\|fatal error\\) \\(CS[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 979       1 3 nil 4)
 980      ;; perl
 981      ("\\(.*\\) at \\([^ \n]+\\) line \\([0-9]+\\)[,.\n]" 2 3 nil 1)
 982      ;; LaTeX warnings (fileless) ("\\(LaTeX \\(Warning\\|Error\\): .*\\) on input line \\([0-9]+\\)" 20 3 nil 1)
 983      ;; ant/javac
 984      (" *\\(\\[javac\\]\\)? *\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[ \t\n]*\\(.+\\)"
 985       2 4 nil 5))
 986    ;; compilation-error-regexp-alist)
 987    (flymake-reformat-err-line-patterns-from-compile-el compilation-error-regexp-alist-alist))
 988   "Patterns for matching error/warning lines.
 989 \(REGEXP FILE-IDX LINE-IDX ERR-TEXT-IDX).
 990 Use `flymake-reformat-err-line-patterns-from-compile-el' to add patterns
 991 from compile.el")
 992
 993 ;;(defcustom flymake-err-line-patterns
 994 ;;  '(
 995 ;;    ; MS Visual C++ 6.0
 996 ;;    ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)) \: \\(\\(error\\|warning\\|fatal error\\) \\(C[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 997 ;;       1 3 4)
 998 ;;   ; jikes
 999 ;;   ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[0-9]+\:[0-9]+\:[0-9]+\: \\(\\(Error\\|Warning\\|Caution\\):[ \t\n]*\\(.+\\)\\)"
1000 ;;       1 3 4))
1001 ;;    "patterns for matching error/warning lines, (regexp file-idx line-idx err-text-idx)"
1002 ;;   :group 'flymake
1003 ;;   :type '(repeat (string number number number))
1004 ;;)
1005
1006 (defun flymake-parse-line (line)
1007   "Parse LINE to see if it is an error or warning.
1008 Return its components if so, nil otherwise."
1009   (let ((raw-file-name nil)
1010         (line-no 0)
1011         (err-type "e")
1012         (err-text nil)
1013         (patterns flymake-err-line-patterns)
1014         (matched nil))
1015     (while (and patterns (not matched))
1016       (when (string-match (car (car patterns)) line)
1017         (let* ((file-idx (nth 1 (car patterns)))
1018                (line-idx (nth 2 (car patterns))))
1019
1020           (setq raw-file-name (if file-idx (match-string file-idx line) nil))
1021           (setq line-no       (if line-idx (string-to-number (match-string line-idx line)) 0))
1022           (setq err-text      (if (> (length (car patterns)) 4)
1023                                   (match-string (nth 4 (car patterns)) line)
1024                                 (flymake-patch-err-text (substring line (match-end 0)))))
1025           (or err-text (setq err-text "<no error text>"))
1026           (if (and err-text (string-match "^[wW]arning" err-text))
1027               (setq err-type "w")
1028             )
1029           (flymake-log 3 "parse line: file-idx=%s line-idx=%s file=%s line=%s text=%s" file-idx line-idx
1030                        raw-file-name line-no err-text)
1031           (setq matched t)))
1032       (setq patterns (cdr patterns)))
1033     (if matched
1034         (flymake-ler-make-ler raw-file-name line-no err-type err-text)
1035       ())))
1036
1037 (defun flymake-find-err-info (err-info-list line-no)
1038   "Find (line-err-info-list pos) for specified LINE-NO."
1039   (if err-info-list
1040       (let* ((line-err-info-list  nil)
1041              (pos       0)
1042              (count     (length err-info-list)))
1043
1044         (while (and (< pos count) (< (car (nth pos err-info-list)) line-no))
1045           (setq pos (1+ pos)))
1046         (when (and (< pos count) (equal (car (nth pos err-info-list)) line-no))
1047           (setq line-err-info-list (flymake-er-get-line-err-info-list (nth pos err-info-list))))
1048         (list line-err-info-list pos))
1049     '(nil 0)))
1050
1051 (defun flymake-line-err-info-is-less-or-equal (line-one line-two)
1052   (or (string< (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1053       (and (string= (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1054            (not (flymake-ler-get-file line-one)) (flymake-ler-get-file line-two))
1055       (and (string= (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1056            (or (and      (flymake-ler-get-file line-one)       (flymake-ler-get-file line-two))
1057                (and (not (flymake-ler-get-file line-one)) (not (flymake-ler-get-file line-two)))))))
1058
1059 (defun flymake-add-line-err-info (line-err-info-list line-err-info)
1060   "Update LINE-ERR-INFO-LIST with the error LINE-ERR-INFO.
1061 For the format of LINE-ERR-INFO, see `flymake-ler-make-ler'.
1062 The new element is inserted in the proper position, according to
1063 the predicate `flymake-line-err-info-is-less-or-equal'.
1064 The updated value of LINE-ERR-INFO-LIST is returned."
1065   (if (not line-err-info-list)
1066       (list line-err-info)
1067     (let* ((count  (length line-err-info-list))
1068            (idx    0))
1069       (while (and (< idx count) (flymake-line-err-info-is-less-or-equal (nth idx line-err-info-list) line-err-info))
1070         (setq idx (1+ idx)))
1071       (cond ((equal 0     idx)    (setq line-err-info-list (cons line-err-info line-err-info-list)))
1072             (t                    (setq line-err-info-list (flymake-ins-after line-err-info-list (1- idx) line-err-info))))
1073       line-err-info-list)))
1074
1075 (defun flymake-add-err-info (err-info-list line-err-info)
1076   "Update ERR-INFO-LIST with the error LINE-ERR-INFO, preserving sort order.
1077 Returns the updated value of ERR-INFO-LIST.
1078 For the format of ERR-INFO-LIST, see `flymake-err-info'.
1079 For the format of LINE-ERR-INFO, see `flymake-ler-make-ler'."
1080   (let* ((line-no             (if (flymake-ler-get-file line-err-info) 1 (flymake-ler-get-line line-err-info)))
1081          (info-and-pos        (flymake-find-err-info err-info-list line-no))
1082          (exists              (car info-and-pos))
1083          (pos                 (nth 1 info-and-pos))
1084          (line-err-info-list  nil)
1085          (err-info            nil))
1086
1087     (if exists
1088         (setq line-err-info-list (flymake-er-get-line-err-info-list (car (nthcdr pos err-info-list)))))
1089     (setq line-err-info-list (flymake-add-line-err-info line-err-info-list line-err-info))
1090
1091     (setq err-info (flymake-er-make-er line-no line-err-info-list))
1092     (cond (exists             (setq err-info-list (flymake-set-at err-info-list pos err-info)))
1093           ((equal 0 pos)      (setq err-info-list (cons err-info err-info-list)))
1094           (t                  (setq err-info-list (flymake-ins-after err-info-list (1- pos) err-info))))
1095     err-info-list))
1096
1097 (defun flymake-get-project-include-dirs-imp (basedir)
1098   "Include dirs for the project current file belongs to."
1099   (if (flymake-get-project-include-dirs-from-cache basedir)
1100       (progn
1101         (flymake-get-project-include-dirs-from-cache basedir))
1102     ;;else
1103     (let* ((command-line  (concat "make -C\"" basedir "\" DUMPVARS=INCLUDE_DIRS dumpvars"))
1104            (output        (shell-command-to-string command-line))
1105            (lines         (flymake-split-string output "\n"))
1106            (count         (length lines))
1107            (idx           0)
1108            (inc-dirs      nil))
1109       (while (and (< idx count) (not (string-match "^INCLUDE_DIRS=.*" (nth idx lines))))
1110         (setq idx (1+ idx)))
1111       (when (< idx count)
1112         (let* ((inc-lines  (flymake-split-string (nth idx lines) " *-I"))
1113                (inc-count  (length inc-lines)))
1114           (while (> inc-count 0)
1115             (when (not (string-match "^INCLUDE_DIRS=.*" (nth (1- inc-count) inc-lines)))
1116               (setq inc-dirs (cons (flymake-replace-regexp-in-string "\"" "" (nth (1- inc-count) inc-lines)) inc-dirs)))
1117             (setq inc-count (1- inc-count)))))
1118       (flymake-add-project-include-dirs-to-cache basedir inc-dirs)
1119       inc-dirs)))
1120
1121 (defcustom flymake-get-project-include-dirs-function 'flymake-get-project-include-dirs-imp
1122   "Function used to get project include dirs, one parameter: basedir name."
1123   :group 'flymake
1124   :type 'function)
1125
1126 (defun flymake-get-project-include-dirs (basedir)
1127   (funcall flymake-get-project-include-dirs-function basedir))
1128
1129 (defun flymake-get-system-include-dirs ()
1130   "System include dirs - from the 'INCLUDE' env setting."
1131   (let* ((includes (getenv "INCLUDE")))
1132     (if includes (flymake-split-string includes path-separator) nil)))
1133
1134 (defvar flymake-project-include-dirs-cache (flymake-makehash 'equal))
1135
1136 (defun flymake-get-project-include-dirs-from-cache (base-dir)
1137   (gethash base-dir flymake-project-include-dirs-cache))
1138
1139 (defun flymake-add-project-include-dirs-to-cache (base-dir include-dirs)
1140   (puthash base-dir include-dirs flymake-project-include-dirs-cache))
1141
1142 (defun flymake-clear-project-include-dirs-cache ()
1143   (clrhash flymake-project-include-dirs-cache))
1144
1145 (defun flymake-get-include-dirs (base-dir)
1146   "Get dirs to use when resolving local file names."
1147   (let* ((include-dirs (append '(".") (flymake-get-project-include-dirs base-dir) (flymake-get-system-include-dirs))))
1148     include-dirs))
1149
1150 (defun flymake-restore-formatting (source-buffer)
1151   "Remove any formatting made by flymake."
1152   )
1153
1154 (defun flymake-get-program-dir (buffer)
1155   "Get dir to start program in."
1156   (unless (bufferp buffer)
1157     (error "Invalid buffer"))
1158   (with-current-buffer buffer
1159     default-directory))
1160
1161 (defun flymake-safe-delete-file (file-name)
1162   (when (and file-name (file-exists-p file-name))
1163     (delete-file file-name)
1164     (flymake-log 1 "deleted file %s" file-name)))
1165
1166 (defun flymake-safe-delete-directory (dir-name)
1167   (condition-case err
1168       (progn
1169         (delete-directory dir-name)
1170         (flymake-log 1 "deleted dir %s" dir-name))
1171     (error
1172      (flymake-log 1 "Failed to delete dir %s, error ignored" dir-name))))
1173
1174 (defcustom flymake-compilation-prevents-syntax-check t
1175   "If non-nil, syntax check won't be started in case compilation is running."
1176   :group 'flymake
1177   :type 'boolean)
1178
1179 (defun flymake-start-syntax-check (buffer)
1180   "Start syntax checking for buffer BUFFER."
1181   (unless (bufferp buffer)
1182     (error "Expected a buffer"))
1183   (with-current-buffer buffer
1184     (flymake-log 3 "flymake is running: %s" flymake-is-running)
1185     (when (and (not flymake-is-running)
1186                (flymake-can-syntax-check-file (buffer-file-name buffer)))
1187       (when (or (not flymake-compilation-prevents-syntax-check)
1188                 (not (flymake-compilation-is-running))) ;+ (flymake-rep-ort-status buffer "COMP")
1189         (flymake-clear-buildfile-cache)
1190         (flymake-clear-project-include-dirs-cache)
1191
1192         (setq flymake-check-was-interrupted nil)
1193         (setq flymake-buffer-data (flymake-makehash 'equal))
1194
1195         (let* ((source-file-name  (buffer-file-name buffer))
1196                (init-f (flymake-get-init-function source-file-name))
1197                (cleanup-f (flymake-get-cleanup-function source-file-name))
1198                (cmd-and-args (funcall init-f buffer))
1199                (cmd          (nth 0 cmd-and-args))
1200                (args         (nth 1 cmd-and-args))
1201                (dir          (nth 2 cmd-and-args)))
1202           (if (not cmd-and-args)
1203               (progn
1204                 (flymake-log 0 "init function %s for %s failed, cleaning up" init-f source-file-name)
1205                 (funcall cleanup-f buffer))
1206             (progn
1207               (setq flymake-last-change-time nil)
1208               (flymake-start-syntax-check-process buffer cmd args dir))))))))
1209
1210 (defun flymake-start-syntax-check-process (buffer cmd args dir)
1211   "Start syntax check process."
1212   (let* ((process nil))
1213     (condition-case err
1214         (progn
1215           (when dir
1216             (let ((default-directory dir))
1217               (flymake-log 3 "starting process on dir %s" default-directory)))
1218           (setq process (get-process (apply 'start-process "flymake-proc" nil cmd args)))
1219           (set-process-sentinel process 'flymake-process-sentinel)
1220           (set-process-filter process 'flymake-process-filter)
1221
1222           (flymake-reg-names (process-id process) (buffer-name buffer))
1223
1224           (with-current-buffer buffer
1225             (setq flymake-is-running t)
1226             (setq flymake-last-change-time nil)
1227             (setq flymake-check-start-time (flymake-float-time)))
1228
1229           (flymake-report-status buffer nil "*")
1230           (flymake-log 2 "started process %d, command=%s, dir=%s"
1231                        (process-id process) (process-command process) default-directory)
1232           process)
1233       (error
1234        (let* ((err-str (format "Failed to launch syntax check process '%s' with args %s: %s"
1235                                cmd args (error-message-string err)))
1236               (source-file-name (buffer-file-name buffer))
1237               (cleanup-f        (flymake-get-cleanup-function source-file-name)))
1238          (flymake-log 0 err-str)
1239          (funcall cleanup-f buffer)
1240          (flymake-report-fatal-status buffer "PROCERR" err-str))))))
1241
1242 (defun flymake-kill-process (pid &optional rest)
1243   "Kill process PID."
1244   (signal-process pid 9)
1245   (let* ((buffer-name (flymake-get-source-buffer-name pid)))
1246     (when (and buffer-name (get-buffer buffer-name))
1247       (with-current-buffer (get-buffer buffer-name)
1248         (setq flymake-check-was-interrupted t))))
1249   (flymake-log 1 "killed process %d" pid))
1250
1251 (defun flymake-stop-all-syntax-checks ()
1252   "Kill all syntax check processes."
1253   (interactive)
1254   (let ((pids  (copy-hash-table flymake-pid-to-names)))
1255     (maphash 'flymake-kill-process pids)))
1256
1257 (defun flymake-compilation-is-running ()
1258   (and (boundp 'compilation-in-progress)
1259        compilation-in-progress))
1260
1261 (defun flymake-compile ()
1262   "Kill all flymake syntax checks, start compilation."
1263   (interactive)
1264   (flymake-stop-all-syntax-checks)
1265   (call-interactively 'compile))
1266
1267 (defvar flymake-is-running nil
1268   "If t, flymake syntax check process is running for the current buffer.")
1269
1270 (make-variable-buffer-local 'flymake-is-running)
1271
1272 (defvar flymake-timer nil
1273   "Timer for starting syntax check.")
1274
1275 (make-variable-buffer-local 'flymake-timer)
1276
1277 (defvar flymake-last-change-time nil
1278   "Time of last buffer change.")
1279
1280 (make-variable-buffer-local 'flymake-last-change-time)
1281
1282 (defvar flymake-check-start-time nil
1283   "Time at which syntax check was started.")
1284
1285 (make-variable-buffer-local 'flymake-check-start-time)
1286
1287 (defvar flymake-check-was-interrupted nil
1288   "Non-nil if syntax check was killed by `flymake-compile'.")
1289
1290 (make-variable-buffer-local 'flymake-check-was-interrupted)
1291
1292 (defcustom flymake-no-changes-timeout 0.5
1293   "Time to wait after last change before starting compilation."
1294   :group 'flymake
1295   :type 'number)
1296
1297 (defun flymake-on-timer-event (buffer)
1298   "Start a syntax check for buffer BUFFER if necessary."
1299   (when (bufferp buffer)
1300     (with-current-buffer buffer
1301       (when (and (not flymake-is-running)
1302                  flymake-last-change-time
1303                  (> (flymake-float-time) (+ flymake-no-changes-timeout flymake-last-change-time)))
1304
1305         (setq flymake-last-change-time nil)
1306         (flymake-log 3 "starting syntax check as more than 1 second passed since last change")
1307         (flymake-start-syntax-check buffer)))))
1308
1309 (defun flymake-start-syntax-check-for-current-buffer ()
1310   "Run `flymake-start-syntax-check' for current buffer if it isn't already running."
1311   (interactive)
1312   (flymake-start-syntax-check (current-buffer)))
1313
1314 (defun flymake-current-line-no ()
1315   "Return number of current line in current buffer."
1316   (interactive)
1317   (let ((beg  (point-min))
1318         (end  (if (= (point) (point-max)) (point) (1+ (point)))))
1319     (count-lines beg end)))
1320
1321 (defun flymake-count-lines (buffer)
1322   "Return number of lines in buffer BUFFER."
1323   (with-current-buffer buffer
1324     (count-lines (point-min) (point-max))))
1325
1326 (defun flymake-get-point-pixel-pos ()
1327   "Return point position in pixels: (x, y)."
1328   (let ((mouse-pos  (mouse-position))
1329         (pixel-pos  nil)
1330         (ret        nil))
1331     (if (car (cdr mouse-pos))
1332         (progn
1333           (set-mouse-position (flymake-selected-frame) (current-column) (flymake-current-row))
1334           (setq pixel-pos (mouse-pixel-position))
1335           (set-mouse-position (car mouse-pos) (car (cdr mouse-pos)) (cdr (cdr mouse-pos)))
1336           (setq ret (list (car (cdr pixel-pos)) (cdr (cdr pixel-pos)))))
1337       (progn
1338         (setq ret '(0 0))))
1339     (flymake-log 3 "mouse pos is %s" ret)
1340     ret))
1341
1342 (defun flymake-display-err-menu-for-current-line ()
1343   "Display a menu with errors/warnings for current line if it has errors and/or warnings."
1344   (interactive)
1345   (let* ((line-no             (flymake-current-line-no))
1346          (line-err-info-list  (nth 0 (flymake-find-err-info flymake-err-info line-no)))
1347          (menu-data           (flymake-make-err-menu-data line-no line-err-info-list))
1348          (choice              nil)
1349          (mouse-pos           (flymake-get-point-pixel-pos))
1350          (menu-pos            (list (flymake-get-point-pixel-pos) (selected-window))))
1351     (if menu-data
1352         (progn
1353           (setq choice (flymake-popup-menu menu-pos menu-data))
1354           (flymake-log 3 "choice=%s" choice)
1355           (when choice
1356             (eval choice)))
1357       (flymake-log 1 "no errors for line %d" line-no))))
1358
1359 (defun flymake-make-err-menu-data (line-no line-err-info-list)
1360   "Make a (menu-title (item-title item-action)*) list with errors/warnings from LINE-ERR-INFO-LIST."
1361   (let* ((menu-items  nil))
1362     (when line-err-info-list
1363       (let* ((count           (length line-err-info-list))
1364              (menu-item-text  nil))
1365         (while (> count 0)
1366           (setq menu-item-text (flymake-ler-get-text (nth (1- count) line-err-info-list)))
1367           (let* ((file       (flymake-ler-get-file (nth (1- count) line-err-info-list)))
1368                  (full-file  (flymake-ler-get-full-file (nth (1- count) line-err-info-list)))
1369                  (line       (flymake-ler-get-line (nth (1- count) line-err-info-list))))
1370             (if file
1371                 (setq menu-item-text (concat menu-item-text " - " file "(" (format "%d" line) ")")))
1372             (setq menu-items (cons (list menu-item-text
1373                                          (if file (list 'flymake-goto-file-and-line full-file line) nil))
1374                                    menu-items)))
1375           (setq count (1- count)))
1376         (flymake-log 3 "created menu-items with %d item(s)" (length menu-items))))
1377     (if menu-items
1378         (let* ((menu-title  (format "Line %d: %d error(s), %d warning(s)" line-no
1379                                     (flymake-get-line-err-count line-err-info-list "e")
1380                                     (flymake-get-line-err-count line-err-info-list "w"))))
1381           (list menu-title menu-items))
1382       nil)))
1383
1384 (defun flymake-goto-file-and-line (file line)
1385   "Try to get buffer for FILE and goto line LINE in it."
1386   (if (not (file-exists-p file))
1387       (flymake-log 1 "file %s does not exists" file)
1388     (progn
1389       (find-file file)
1390       (goto-line line))))
1391
1392 ;; flymake minor mode declarations
1393 (defvar flymake-mode-line nil)
1394
1395 (make-variable-buffer-local 'flymake-mode-line)
1396
1397 (defvar flymake-mode-line-e-w nil)
1398
1399 (make-variable-buffer-local 'flymake-mode-line-e-w)
1400
1401 (defvar flymake-mode-line-status nil)
1402
1403 (make-variable-buffer-local 'flymake-mode-line-status)
1404
1405 (defun flymake-report-status (buffer e-w &optional status)
1406   "Show status in mode line."
1407   (when (bufferp buffer)
1408     (with-current-buffer buffer
1409       (when e-w
1410         (setq flymake-mode-line-e-w e-w))
1411       (when status
1412         (setq flymake-mode-line-status status))
1413       (let* ((mode-line " Flymake"))
1414         (when (> (length flymake-mode-line-e-w) 0)
1415           (setq mode-line (concat mode-line ":" flymake-mode-line-e-w)))
1416         (setq mode-line (concat mode-line flymake-mode-line-status))
1417         (setq flymake-mode-line mode-line)
1418         (force-mode-line-update)))))
1419
1420 (defun flymake-display-warning (warning)
1421   "Display a warning to user."
1422   (message-box warning))
1423
1424 (defcustom flymake-gui-warnings-enabled t
1425   "Enables/disables GUI warnings."
1426   :group 'flymake
1427   :type 'boolean)
1428
1429 (defun flymake-report-fatal-status (buffer status warning)
1430   "Display a warning and switch flymake mode off."
1431   (when flymake-gui-warnings-enabled
1432     (flymake-display-warning (format "Flymake: %s. Flymake will be switched OFF" warning))
1433     )
1434   (with-current-buffer buffer
1435     (flymake-mode 0)
1436     (flymake-log 0 "switched OFF Flymake mode for buffer %s due to fatal status %s, warning %s"
1437                  (buffer-name buffer) status warning)))
1438
1439 (defcustom flymake-start-syntax-check-on-find-file t
1440   "Start syntax check on find file."
1441   :group 'flymake
1442   :type 'boolean)
1443
1444 ;;;###autoload
1445 (define-minor-mode flymake-mode
1446   "Minor mode to do on-the-fly syntax checking.
1447 When called interactively, toggles the minor mode.
1448 With arg, turn Flymake mode on if and only if arg is positive."
1449   :group 'flymake :lighter flymake-mode-line
1450   (cond
1451
1452    ;; Turning the mode ON.
1453    (flymake-mode
1454     (if (not (flymake-can-syntax-check-file buffer-file-name))
1455         (flymake-log 2 "flymake cannot check syntax in buffer %s" (buffer-name))
1456       (add-hook 'after-change-functions 'flymake-after-change-function nil t)
1457       (add-hook 'after-save-hook 'flymake-after-save-hook nil t)
1458       (add-hook 'kill-buffer-hook 'flymake-kill-buffer-hook nil t)
1459       ;;+(add-hook 'find-file-hook 'flymake-find-file-hook)
1460
1461       (flymake-report-status (current-buffer) "" "")
1462
1463       (setq flymake-timer
1464             (run-at-time nil 1 'flymake-on-timer-event (current-buffer)))
1465
1466       (when flymake-start-syntax-check-on-find-file
1467         (flymake-start-syntax-check-for-current-buffer))))
1468
1469    ;; Turning the mode OFF.
1470    (t
1471     (remove-hook 'after-change-functions 'flymake-after-change-function t)
1472     (remove-hook 'after-save-hook 'flymake-after-save-hook t)
1473     (remove-hook 'kill-buffer-hook 'flymake-kill-buffer-hook t)
1474     ;;+(remove-hook 'find-file-hook (function flymake-find-file-hook) t)
1475
1476     (flymake-delete-own-overlays (current-buffer))
1477
1478     (when flymake-timer
1479       (cancel-timer flymake-timer)
1480       (setq flymake-timer nil))
1481
1482     (setq flymake-is-running nil))))
1483
1484 ;;;###autoload
1485 (defun flymake-mode-on ()
1486   "Turn flymake mode on."
1487   (flymake-mode 1)
1488   (flymake-log 1 "flymake mode turned ON for buffer %s" (buffer-name)))
1489
1490 ;;;###autoload
1491 (defun flymake-mode-off ()
1492   "Turn flymake mode off."
1493   (flymake-mode 0)
1494   (flymake-log 1 "flymake mode turned OFF for buffer %s" (buffer-name)))
1495
1496 (defcustom flymake-start-syntax-check-on-newline t
1497   "Start syntax check if newline char was added/removed from the buffer."
1498   :group 'flymake
1499   :type 'boolean)
1500
1501 (defun flymake-after-change-function (start stop len)
1502   "Start syntax check for current buffer if it isn't already running."
1503   ;;+(flymake-log 0 "setting change time to %s" (flymake-float-time))
1504   (let((new-text (buffer-substring start stop)))
1505     (when (and flymake-start-syntax-check-on-newline (equal new-text "\n"))
1506       (flymake-log 3 "starting syntax check as new-line has been seen")
1507       (flymake-start-syntax-check-for-current-buffer))
1508     (setq flymake-last-change-time (flymake-float-time))))
1509
1510 (defun flymake-after-save-hook ()
1511   (if (local-variable-p 'flymake-mode (current-buffer)) ; (???) other way to determine whether flymake is active in buffer being saved?
1512       (progn
1513         (flymake-log 3 "starting syntax check as buffer was saved")
1514         (flymake-start-syntax-check-for-current-buffer)))) ; no more mode 3. cannot start check if mode 3 (to temp copies) is active - (???)
1515
1516 (defun flymake-kill-buffer-hook ()
1517   (when flymake-timer
1518     (cancel-timer flymake-timer)
1519     (setq flymake-timer nil)))
1520
1521 (defun flymake-find-file-hook ()
1522   ;;+(when flymake-start-syntax-check-on-find-file
1523   ;;+    (flymake-log 3 "starting syntax check on file open")
1524   ;;+    (flymake-start-syntax-check-for-current-buffer)
1525   ;;+)
1526   (when (and (not (local-variable-p 'flymake-mode (current-buffer)))
1527              (flymake-can-syntax-check-file buffer-file-name))
1528     (flymake-mode)
1529     (flymake-log 3 "automatically turned ON flymake mode")))
1530
1531 (defun flymake-get-first-err-line-no (err-info-list)
1532   "Return first line with error."
1533   (when err-info-list
1534     (flymake-er-get-line (car err-info-list))))
1535
1536 (defun flymake-get-last-err-line-no (err-info-list)
1537   "Return last line with error."
1538   (when err-info-list
1539     (flymake-er-get-line (nth (1- (length err-info-list)) err-info-list))))
1540
1541 (defun flymake-get-next-err-line-no (err-info-list line-no)
1542   "Return next line with error."
1543   (when err-info-list
1544     (let* ((count  (length err-info-list))
1545            (idx    0))
1546       (while (and (< idx count) (>= line-no (flymake-er-get-line (nth idx err-info-list))))
1547         (setq idx (1+ idx)))
1548       (if (< idx count)
1549           (flymake-er-get-line (nth idx err-info-list))))))
1550
1551 (defun flymake-get-prev-err-line-no (err-info-list line-no)
1552   "Return previous line with error."
1553   (when err-info-list
1554     (let* ((count (length err-info-list)))
1555       (while (and (> count 0) (<= line-no (flymake-er-get-line (nth (1- count) err-info-list))))
1556         (setq count (1- count)))
1557       (if (> count 0)
1558           (flymake-er-get-line (nth (1- count) err-info-list))))))
1559
1560 (defun flymake-skip-whitespace ()
1561   "Move forward until non-whitespace is reached."
1562   (while (looking-at "[ \t]")
1563     (forward-char)))
1564
1565 (defun flymake-goto-line (line-no)
1566   "Go to line LINE-NO, then skip whitespace."
1567   (goto-line line-no)
1568   (flymake-skip-whitespace))
1569
1570 (defun flymake-goto-next-error ()
1571   "Go to next error in err ring."
1572   (interactive)
1573   (let ((line-no (flymake-get-next-err-line-no flymake-err-info (flymake-current-line-no))))
1574     (when (not line-no)
1575       (setq line-no (flymake-get-first-err-line-no flymake-err-info))
1576       (flymake-log 1 "passed end of file"))
1577     (if line-no
1578         (flymake-goto-line line-no)
1579       (flymake-log 1 "no errors in current buffer"))))
1580
1581 (defun flymake-goto-prev-error ()
1582   "Go to previous error in err ring."
1583   (interactive)
1584   (let ((line-no (flymake-get-prev-err-line-no flymake-err-info (flymake-current-line-no))))
1585     (when (not line-no)
1586       (setq line-no (flymake-get-last-err-line-no flymake-err-info))
1587       (flymake-log 1 "passed beginning of file"))
1588     (if line-no
1589         (flymake-goto-line line-no)
1590       (flymake-log 1 "no errors in current buffer"))))
1591
1592 (defun flymake-patch-err-text (string)
1593   (if (string-match "^[\n\t :0-9]*\\(.*\\)$" string)
1594       (match-string 1 string)
1595     string))
1596
1597 ;;;; general init-cleanup and helper routines
1598 (defun flymake-create-temp-inplace (file-name prefix)
1599   (unless (stringp file-name)
1600     (error "Invalid file-name"))
1601   (or prefix
1602       (setq prefix "flymake"))
1603   (let* ((temp-name   (concat (file-name-sans-extension file-name)
1604                               "_" prefix
1605                               (and (file-name-extension file-name)
1606                                    (concat "." (file-name-extension file-name))))))
1607     (flymake-log 3 "create-temp-inplace: file=%s temp=%s" file-name temp-name)
1608     temp-name))
1609
1610 (defun flymake-create-temp-with-folder-structure (file-name prefix)
1611   (unless (stringp file-name)
1612     (error "Invalid file-name"))
1613
1614   (let* ((dir       (file-name-directory file-name))
1615          (slash-pos (string-match "/" dir))
1616          (temp-dir  (concat (file-name-as-directory (flymake-get-temp-dir)) (substring dir (1+ slash-pos)))))
1617
1618     (file-truename (concat (file-name-as-directory temp-dir)
1619                            (file-name-nondirectory file-name)))))
1620
1621 (defun flymake-strrchr (str ch)
1622   (let* ((count  (length str))
1623          (pos    nil))
1624     (while (and (not pos) (> count 0))
1625       (if (= ch (elt str (1- count)))
1626           (setq pos (1- count)))
1627       (setq count (1- count)))
1628     pos))
1629
1630 (defun flymake-delete-temp-directory (dir-name)
1631   "Attempt to delete temp dir created by `flymake-create-temp-with-folder-structure', do not fail on error."
1632   (let* ((temp-dir    (flymake-get-temp-dir))
1633          (suffix      (substring dir-name (1+ (length temp-dir))))
1634          (slash-pos   nil))
1635
1636     (while (> (length suffix) 0)
1637       ;;+(flymake-log 0 "suffix=%s" suffix)
1638       (flymake-safe-delete-directory (file-truename (concat (file-name-as-directory temp-dir) suffix)))
1639       (setq slash-pos (flymake-strrchr suffix (string-to-char "/")))
1640       (if slash-pos
1641           (setq suffix (substring suffix 0 slash-pos))
1642         (setq suffix "")))))
1643
1644 (defun flymake-init-create-temp-buffer-copy (buffer create-temp-f)
1645   "Make a temporary copy of the current buffer, save its name in buffer data and return the name."
1646   (let*  ((source-file-name       (buffer-file-name buffer))
1647           (temp-source-file-name  (funcall create-temp-f source-file-name "flymake")))
1648
1649     (flymake-save-buffer-in-file buffer temp-source-file-name)
1650     (flymake-set-buffer-value buffer "temp-source-file-name" temp-source-file-name)
1651     temp-source-file-name))
1652
1653 (defun flymake-simple-cleanup (buffer)
1654   "Do cleanup after `flymake-init-create-temp-buffer-copy'.
1655 Delete temp file."
1656   (let* ((temp-source-file-name (flymake-get-buffer-value buffer "temp-source-file-name")))
1657     (flymake-safe-delete-file temp-source-file-name)
1658     (with-current-buffer buffer
1659       (setq flymake-last-change-time nil))))
1660
1661 (defun flymake-get-real-file-name (buffer file-name-from-err-msg)
1662   "Translate file name from error message to \"real\" file name.
1663 Return full-name.  Names are real, not patched."
1664   (let* ((real-name              nil)
1665          (source-file-name       (buffer-file-name buffer))
1666          (master-file-name       (flymake-get-buffer-value buffer "master-file-name"))
1667          (temp-source-file-name  (flymake-get-buffer-value buffer "temp-source-file-name"))
1668          (temp-master-file-name  (flymake-get-buffer-value buffer "temp-master-file-name"))
1669          (base-dirs              (list (flymake-get-buffer-value buffer "base-dir")
1670                                        (file-name-directory source-file-name)
1671                                        (if master-file-name (file-name-directory master-file-name) nil)))
1672          (files                  (list (list source-file-name       source-file-name)
1673                                        (list temp-source-file-name  source-file-name)
1674                                        (list master-file-name       master-file-name)
1675                                        (list temp-master-file-name  master-file-name))))
1676
1677     (when (equal 0 (length file-name-from-err-msg))
1678       (setq file-name-from-err-msg source-file-name))
1679
1680     (setq real-name (flymake-get-full-patched-file-name file-name-from-err-msg base-dirs files))
1681     ;; if real-name is nil, than file name from err msg is none of the files we've patched
1682     (if (not real-name)
1683         (setq real-name (flymake-get-full-nonpatched-file-name file-name-from-err-msg base-dirs)))
1684     (if (not real-name)
1685         (setq real-name file-name-from-err-msg))
1686     (setq real-name (flymake-fix-file-name real-name))
1687     (flymake-log 3 "get-real-file-name: file-name=%s real-name=%s" file-name-from-err-msg real-name)
1688     real-name))
1689
1690 (defun flymake-get-full-patched-file-name (file-name-from-err-msg base-dirs files)
1691   (let* ((base-dirs-count  (length base-dirs))
1692          (file-count       (length files))
1693          (real-name        nil))
1694
1695     (while (and (not real-name) (> base-dirs-count 0))
1696       (setq file-count (length files))
1697       (while (and (not real-name) (> file-count 0))
1698         (let* ((this-dir        (nth (1- base-dirs-count) base-dirs))
1699                (this-file       (nth 0 (nth (1- file-count) files)))
1700                (this-real-name  (nth 1 (nth (1- file-count) files))))
1701           ;;+(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)
1702           (when (and this-dir this-file (flymake-same-files
1703                                          (expand-file-name file-name-from-err-msg this-dir)
1704                                          this-file))
1705             (setq real-name this-real-name)))
1706         (setq file-count (1- file-count)))
1707       (setq base-dirs-count (1- base-dirs-count)))
1708     real-name))
1709
1710 (defun flymake-get-full-nonpatched-file-name (file-name-from-err-msg base-dirs)
1711   (let* ((real-name  nil))
1712     (if (file-name-absolute-p file-name-from-err-msg)
1713         (setq real-name file-name-from-err-msg)
1714       (let* ((base-dirs-count  (length base-dirs)))
1715         (while (and (not real-name) (> base-dirs-count 0))
1716           (let* ((full-name (expand-file-name file-name-from-err-msg
1717                                               (nth (1- base-dirs-count) base-dirs))))
1718             (if (file-exists-p full-name)
1719                 (setq real-name full-name))
1720             (setq base-dirs-count (1- base-dirs-count))))))
1721     real-name))
1722
1723 (defun flymake-init-find-buildfile-dir (buffer source-file-name buildfile-name)
1724   "Find buildfile, store its dir in buffer data and return its dir, if found."
1725   (let* ((buildfile-dir  (flymake-find-buildfile buildfile-name
1726                                                  (file-name-directory source-file-name)
1727                                                  flymake-buildfile-dirs)))
1728     (if (not buildfile-dir)
1729         (progn
1730           (flymake-log 1 "no buildfile (%s) for %s" buildfile-name source-file-name)
1731           (flymake-report-fatal-status buffer "NOMK" (format "No buildfile (%s) found for %s" buildfile-name source-file-name))
1732           )
1733       (progn
1734         (flymake-set-buffer-value buffer "base-dir" buildfile-dir)))
1735     buildfile-dir))
1736
1737 (defun flymake-init-create-temp-source-and-master-buffer-copy (buffer get-incl-dirs-f create-temp-f master-file-masks include-regexp-list)
1738   "Find master file (or buffer), create it's copy along with a copy of the source file."
1739   (let* ((source-file-name       (buffer-file-name buffer))
1740          (temp-source-file-name  (flymake-init-create-temp-buffer-copy buffer create-temp-f))
1741          (master-file-name       nil)
1742          (temp-master-file-name  nil)
1743          (master-and-temp-master (flymake-create-master-file
1744                                   source-file-name temp-source-file-name
1745                                   get-incl-dirs-f create-temp-f
1746                                   master-file-masks include-regexp-list)))
1747
1748     (if (not master-and-temp-master)
1749         (progn
1750           (flymake-log 1 "cannot find master file for %s" source-file-name)
1751           (flymake-report-status buffer "!" "") ; NOMASTER
1752           )
1753       (progn
1754         (setq master-file-name       (nth 0 master-and-temp-master))
1755         (setq temp-master-file-name  (nth 1 master-and-temp-master))
1756         (flymake-set-buffer-value buffer "master-file-name"      master-file-name)
1757         (flymake-set-buffer-value buffer "temp-master-file-name" temp-master-file-name)
1758         ))
1759     temp-master-file-name))
1760
1761 (defun flymake-master-cleanup (buffer)
1762   (flymake-simple-cleanup buffer)
1763   (flymake-safe-delete-file (flymake-get-buffer-value buffer "temp-master-file-name")))
1764
1765 ;;;; make-specific init-cleanup routines
1766 (defun flymake-get-syntax-check-program-args (source-file-name base-dir use-relative-base-dir use-relative-source get-cmd-line-f)
1767   "Create a command line for syntax check using GET-CMD-LINE-F."
1768   (let* ((my-base-dir  base-dir)
1769          (my-source    source-file-name))
1770
1771     (when use-relative-base-dir
1772       (setq my-base-dir (flymake-build-relative-filename (file-name-directory source-file-name) base-dir)))
1773
1774     (when use-relative-source
1775       (setq my-source (concat (flymake-build-relative-filename base-dir (file-name-directory source-file-name))
1776                               (file-name-nondirectory source-file-name))))
1777     (funcall get-cmd-line-f my-source my-base-dir)))
1778
1779 (defun flymake-get-make-cmdline (source base-dir)
1780   (list "make"
1781         (list "-s"
1782               "-C"
1783               base-dir
1784               (concat "CHK_SOURCES=" source)
1785               "SYNTAX_CHECK_MODE=1"
1786               "check-syntax")))
1787
1788 (defun flymake-get-ant-cmdline (source base-dir)
1789   (list "ant"
1790         (list "-buildfile"
1791               (concat base-dir "/" "build.xml")
1792               (concat "-DCHK_SOURCES=" source)
1793               "check-syntax")))
1794
1795 (defun flymake-simple-make-init-impl (buffer create-temp-f use-relative-base-dir use-relative-source build-file-name get-cmdline-f)
1796   "Create syntax check command line for a directly checked source file.
1797 Use CREATE-TEMP-F for creating temp copy."
1798   (let* ((args nil)
1799          (source-file-name   (buffer-file-name buffer))
1800          (buildfile-dir      (flymake-init-find-buildfile-dir buffer source-file-name build-file-name)))
1801     (if buildfile-dir
1802         (let* ((temp-source-file-name  (flymake-init-create-temp-buffer-copy buffer create-temp-f)))
1803           (setq args (flymake-get-syntax-check-program-args temp-source-file-name buildfile-dir
1804                                                             use-relative-base-dir use-relative-source
1805                                                             get-cmdline-f))))
1806     args))
1807
1808 (defun flymake-simple-make-init (buffer)
1809   (flymake-simple-make-init-impl buffer 'flymake-create-temp-inplace t t "Makefile" 'flymake-get-make-cmdline))
1810
1811 (defun flymake-master-make-init (buffer get-incl-dirs-f master-file-masks include-regexp-list)
1812   "Create make command line for a source file checked via master file compilation."
1813   (let* ((make-args nil)
1814          (temp-master-file-name (flymake-init-create-temp-source-and-master-buffer-copy
1815                                  buffer get-incl-dirs-f 'flymake-create-temp-inplace
1816                                  master-file-masks include-regexp-list)))
1817     (when temp-master-file-name
1818       (let* ((buildfile-dir (flymake-init-find-buildfile-dir buffer temp-master-file-name "Makefile")))
1819         (if  buildfile-dir
1820             (setq make-args (flymake-get-syntax-check-program-args
1821                              temp-master-file-name buildfile-dir nil nil 'flymake-get-make-cmdline)))))
1822     make-args))
1823
1824 (defun flymake-find-make-buildfile (source-dir)
1825   (flymake-find-buildfile "Makefile" source-dir flymake-buildfile-dirs))
1826
1827 ;;;; .h/make specific
1828 (defun flymake-master-make-header-init (buffer)
1829   (flymake-master-make-init buffer
1830                             'flymake-get-include-dirs
1831                             '(".+\\.cpp$" ".+\\.c$")
1832                             '("[ \t]*#[ \t]*include[ \t]*\"\\([\w0-9/\\_\.]*[/\\]*\\)\\(%s\\)\"" 1 2)))
1833
1834 ;;;; .java/make specific
1835 (defun flymake-simple-make-java-init (buffer)
1836   (flymake-simple-make-init-impl buffer 'flymake-create-temp-with-folder-structure nil nil "Makefile" 'flymake-get-make-cmdline))
1837
1838 (defun flymake-simple-ant-java-init (buffer)
1839   (flymake-simple-make-init-impl buffer 'flymake-create-temp-with-folder-structure nil nil "build.xml" 'flymake-get-ant-cmdline))
1840
1841 (defun flymake-simple-java-cleanup (buffer)
1842   "Cleanup after `flymake-simple-make-java-init' -- delete temp file and dirs."
1843   (let* ((temp-source-file-name (flymake-get-buffer-value buffer "temp-source-file-name")))
1844     (flymake-safe-delete-file temp-source-file-name)
1845     (when temp-source-file-name
1846       (flymake-delete-temp-directory (file-name-directory temp-source-file-name)))))
1847
1848 ;;;; perl-specific init-cleanup routines
1849 (defun flymake-perl-init (buffer)
1850   (let* ((temp-file   (flymake-init-create-temp-buffer-copy
1851                        buffer 'flymake-create-temp-inplace))
1852          (local-file  (concat (flymake-build-relative-filename
1853                                (file-name-directory buffer-file-name)
1854                                (file-name-directory temp-file))
1855                               (file-name-nondirectory temp-file))))
1856     (list "perl" (list "-wc " local-file))))
1857
1858 ;;;; tex-specific init-cleanup routines
1859 (defun flymake-get-tex-args (file-name)
1860   ;;(list "latex" (list "-c-style-errors" file-name))
1861   (list "texify" (list "--pdf" "--tex-option=-c-style-errors" file-name)))
1862
1863 (defun flymake-simple-tex-init (buffer)
1864   (flymake-get-tex-args (flymake-init-create-temp-buffer-copy buffer 'flymake-create-temp-inplace)))
1865
1866 (defun flymake-master-tex-init (buffer)
1867   (let* ((temp-master-file-name (flymake-init-create-temp-source-and-master-buffer-copy
1868                                  buffer 'flymake-get-include-dirs-dot 'flymake-create-temp-inplace
1869                                  '(".+\\.tex$")
1870                                  '("[ \t]*\\input[ \t]*{\\(.*\\)\\(%s\\)}" 1 2))))
1871     (when temp-master-file-name
1872       (flymake-get-tex-args temp-master-file-name))))
1873
1874 (defun flymake-get-include-dirs-dot (base-dir)
1875   '("."))
1876
1877 ;;;; xml-specific init-cleanup routines
1878 (defun flymake-xml-init (buffer)
1879   (list "xml" (list "val" (flymake-init-create-temp-buffer-copy buffer 'flymake-create-temp-inplace))))
1880
1881 (provide 'flymake)
1882
1883 ;; arch-tag: 8f0d6090-061d-4cac-8862-7c151c4a02dd
1884 ;;; flymake.el ends here