code.delx.au - gnu-emacs/blob - lisp/progmodes/flymake.el

   1 ;;; flymake.el -- a universal on-the-fly syntax checker
   2
   3 ;; Copyright (C) 2003, 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., 59 Temple Place - Suite 330,
  25 ;; Boston, MA 02111-1307, 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 ;;;; [[ Xemacs overlay compatibility
  36 (if (featurep 'xemacs) (progn
  37 (autoload 'make-overlay            "overlay" "Overlay compatibility kit." t)
  38 (autoload 'overlayp                "overlay" "Overlay compatibility kit." t)
  39 (autoload 'overlays-in             "overlay" "Overlay compatibility kit." t)
  40 (autoload 'delete-overlay          "overlay" "Overlay compatibility kit." t)
  41 (autoload 'overlay-put             "overlay" "Overlay compatibility kit." t)
  42 (autoload 'overlay-get             "overlay" "Overlay compatibility kit." t)
  43 ))
  44 ;;;; ]]
  45
  46 ;;;; [[ cross-emacs compatibility routines
  47 (defsubst flymake-makehash (&optional test)
  48   (if (fboundp 'make-hash-table)
  49       (if test (make-hash-table :test test) (make-hash-table))
  50     (with-no-warnings
  51       (makehash test))))
  52
  53 (defalias 'flymake-float-time
  54   (if (fboundp 'float-time)
  55       'float-time
  56     (lambda ()
  57       (multiple-value-bind (s0 s1 s2) (current-time)
  58         (+ (* (float (ash 1 16)) s0) (float s1) (* 0.0000001 s2))))))
  59
  60 (defsubst flymake-replace-regexp-in-string (regexp rep str)
  61   (if (fboundp 'replace-regexp-in-string)
  62       (replace-regexp-in-string regexp rep str)
  63     (replace-in-string str regexp rep)))
  64
  65 (defun flymake-split-string (str pattern)
  66   "Split STR into a list of substrings bounded by PATTERN.
  67 Zero-length substrings at the beginning and end of the list are omitted."
  68   (let* ((splitted (split-string str pattern)))
  69     (if (and (> (length splitted) 0) (= 0 (length (elt splitted 0))))
  70         (setq splitted (cdr splitted)))
  71     (if (and (> (length splitted) 0) (= 0 (length (elt splitted (1- (length splitted))))))
  72         (setq splitted (reverse (cdr (reverse splitted)))))
  73     splitted))
  74
  75 (defsubst flymake-get-temp-dir ()
  76   (if (fboundp 'temp-directory)
  77       (temp-directory)
  78     temporary-file-directory))
  79
  80 (defalias 'flymake-line-beginning-position
  81   (if (fboundp 'line-beginning-position)
  82       'line-beginning-position
  83     (lambda (&optional arg) (save-excursion (beginning-of-line arg) (point)))))
  84
  85 (defalias 'flymake-line-end-position
  86   (if (fboundp 'line-end-position)
  87       'line-end-position
  88     (lambda (&optional arg) (save-excursion (end-of-line arg) (point)))))
  89
  90 (defun flymake-popup-menu (pos menu-data)
  91   "Pop up the flymake menu at position POS, using the data MENU-DATA.
  92 POS is a list of the form ((X Y) WINDOW), where X and Y are
  93 pixels positions from the top left corner of WINDOW's frame.
  94 MENU-DATA is a list of error and warning messages returned by
  95 `flymake-make-err-menu-data'."
  96   (if (featurep 'xemacs)
  97       (let* ((x-pos       (nth 0 (nth 0 pos)))
  98              (y-pos       (nth 1 (nth 0 pos)))
  99              (fake-event-props  '(button 1 x 1 y 1)))
 100         (setq fake-event-props (plist-put fake-event-props 'x x-pos))
 101         (setq fake-event-props (plist-put fake-event-props 'y y-pos))
 102         (popup-menu (flymake-make-xemacs-menu menu-data) (make-event 'button-press fake-event-props)))
 103     (x-popup-menu pos (flymake-make-emacs-menu menu-data))))
 104
 105 (defun flymake-make-emacs-menu (menu-data)
 106   "Return a menu specifier using MENU-DATA.
 107 MENU-DATA is a list of error and warning messages returned by
 108 `flymake-make-err-menu-data'.
 109 See `x-popup-menu' for the menu specifier format."
 110   (let* ((menu-title     (nth 0 menu-data))
 111          (menu-items     (nth 1 menu-data))
 112          (menu-commands  nil))
 113     (setq menu-commands (mapcar (lambda (foo)
 114                                   (cons (nth 0 foo) (nth 1 foo)))
 115                                 menu-items))
 116     (list menu-title (cons "" menu-commands))))
 117
 118 (if (featurep 'xemacs) (progn
 119
 120 (defun flymake-nop ())
 121
 122 (defun flymake-make-xemacs-menu (menu-data)
 123   "Return a menu specifier using MENU-DATA."
 124   (let* ((menu-title     (nth 0 menu-data))
 125          (menu-items     (nth 1 menu-data))
 126          (menu-commands  nil))
 127     (setq menu-commands (mapcar (lambda (foo)
 128                                   (vector (nth 0 foo) (or (nth 1 foo) '(flymake-nop)) t))
 129                                 menu-items))
 130     (cons menu-title menu-commands)))
 131
 132 (defun flymake-xemacs-window-edges (&optional window)
 133   (let ((edges  (window-pixel-edges window))
 134         tmp)
 135     (setq tmp edges)
 136     (setcar tmp (/ (car tmp) (face-width 'default)))
 137     (setq tmp (cdr tmp))
 138     (setcar tmp (/ (car tmp) (face-height 'default)))
 139     (setq tmp (cdr tmp))
 140     (setcar tmp (/ (car tmp) (face-width 'default)))
 141     (setq tmp (cdr tmp))
 142     (setcar tmp (/ (car tmp) (face-height 'default)))
 143     edges))
 144
 145 )) ;; xemacs
 146
 147 (defun flymake-current-row ()
 148   "Return current row number in current frame."
 149   (if (fboundp 'window-edges)
 150       (+ (car (cdr (window-edges))) (count-lines (window-start) (point)))
 151     (count-lines (window-start) (point))))
 152
 153 (defun flymake-selected-frame ()
 154   (if (fboundp 'window-edges)
 155       (selected-frame)
 156     (selected-window)))
 157
 158 ;;;; ]]
 159
 160 (defcustom flymake-log-level -1
 161   "Logging level, only messages with level lower or equal will be logged.
 162 -1 = NONE, 0 = ERROR, 1 = WARNING, 2 = INFO, 3 = DEBUG"
 163   :group 'flymake
 164   :type 'integer)
 165
 166 (defun flymake-log (level text &rest args)
 167   "Log a message at level LEVEL.
 168 If LEVEL is higher than `flymake-log-level', the message is
 169 ignored.  Otherwise, it is printed using `message'.
 170 TEXT is a format control string, and the remaining arguments ARGS
 171 are the string substitutions (see `format')."
 172   (if (<= level flymake-log-level)
 173       (let* ((msg (apply 'format text args)))
 174         (message msg)
 175         ;;(with-temp-buffer
 176         ;;    (insert msg)
 177         ;;   (insert "\n")
 178         ;;   (flymake-save-buffer-in-file (current-buffer) "d:/flymake.log" t)  ; make log file name customizable
 179         ;;)
 180         )))
 181
 182 (defun flymake-ins-after (list pos val)
 183   "Insert VAL into LIST after position POS."
 184   (let ((tmp (copy-sequence list)))     ; (???)
 185     (setcdr (nthcdr pos tmp) (cons val (nthcdr (1+ pos) tmp)))
 186     tmp))
 187
 188 (defun flymake-set-at (list pos val)
 189   "Set VAL at position POS in LIST."
 190   (let ((tmp (copy-sequence list)))     ; (???)
 191     (setcar (nthcdr pos tmp) val)
 192     tmp))
 193
 194 (defvar flymake-pid-to-names (flymake-makehash)
 195   "Hash table mapping PIDs to source buffer names and output files.")
 196
 197 (defun flymake-reg-names (pid source-buffer-name)
 198   "Associate PID with SOURCE-BUFFER-NAME in `flymake-pid-to-names'."
 199   (unless (stringp source-buffer-name)
 200     (error "Invalid buffer name"))
 201   (puthash pid (list source-buffer-name) flymake-pid-to-names))
 202
 203 (defun flymake-get-source-buffer-name (pid)
 204   "Return buffer name associated with PID in `flymake-pid-to-names'."
 205   (nth 0 (gethash pid flymake-pid-to-names)))
 206
 207 (defun flymake-unreg-names (pid)
 208   "Remove the entry associated with PID from `flymake-pid-to-names'."
 209   (remhash pid flymake-pid-to-names))
 210
 211 (defvar flymake-buffer-data (flymake-makehash)
 212   "Data specific to syntax check tool, in name-value pairs.")
 213
 214 (make-variable-buffer-local 'flymake-buffer-data)
 215
 216 (defun flymake-get-buffer-value (buffer name)
 217   (gethash name (with-current-buffer buffer flymake-buffer-data)))
 218
 219 (defun flymake-set-buffer-value (buffer name value)
 220   (puthash name value (with-current-buffer buffer flymake-buffer-data)))
 221
 222 (defvar flymake-output-residual nil)
 223
 224 (make-variable-buffer-local 'flymake-output-residual)
 225
 226 (defcustom flymake-allowed-file-name-masks
 227   '((".+\\.c$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 228     (".+\\.cpp$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 229     (".+\\.xml$" flymake-xml-init flymake-simple-cleanup flymake-get-real-file-name)
 230     (".+\\.html?$" flymake-xml-init flymake-simple-cleanup flymake-get-real-file-name)
 231     (".+\\.cs$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 232     (".+\\.pl$" flymake-perl-init flymake-simple-cleanup flymake-get-real-file-name)
 233     (".+\\.h$" flymake-master-make-header-init flymake-master-cleanup flymake-get-real-file-name)
 234     (".+\\.java$" flymake-simple-make-java-init flymake-simple-java-cleanup flymake-get-real-file-name)
 235     (".+[0-9]+\\.tex$" flymake-master-tex-init flymake-master-cleanup flymake-get-real-file-name)
 236     (".+\\.tex$" flymake-simple-tex-init flymake-simple-cleanup flymake-get-real-file-name)
 237     (".+\\.idl$" flymake-simple-make-init flymake-simple-cleanup flymake-get-real-file-name)
 238     ;; (".+\\.cpp$" 1)
 239     ;; (".+\\.java$" 3)
 240     ;; (".+\\.h$" 2 (".+\\.cpp$" ".+\\.c$")
 241     ;; ("[ \t]*#[ \t]*include[ \t]*\"\\([\w0-9/\\_\.]*[/\\]*\\)\\(%s\\)\"" 1 2))
 242     ;; (".+\\.idl$" 1)
 243     ;; (".+\\.odl$" 1)
 244     ;; (".+[0-9]+\\.tex$" 2 (".+\\.tex$")
 245     ;; ("[ \t]*\\input[ \t]*{\\(.*\\)\\(%s\\)}" 1 2 ))
 246     ;; (".+\\.tex$" 1)
 247     )
 248   "*Files syntax checking is allowed for."
 249   :group 'flymake
 250   :type '(repeat (string symbol symbol symbol)))
 251
 252 (defun flymake-get-file-name-mode-and-masks (file-name)
 253   "Return the corresponding entry from `flymake-allowed-file-name-masks'."
 254   (unless (stringp file-name)
 255     (error "Invalid file-name"))
 256   (let ((fnm flymake-allowed-file-name-masks)
 257         (mode-and-masks  nil))
 258     (while (and (not mode-and-masks) fnm)
 259       (if (string-match (car (car fnm)) file-name)
 260           (setq mode-and-masks (cdr (car fnm))))
 261       (setq fnm (cdr fnm)))
 262     (flymake-log 3 "file %s, init=%s" file-name (car mode-and-masks))
 263     mode-and-masks))
 264
 265 (defun flymake-can-syntax-check-file (file-name)
 266   "Determine whether we can syntax check FILE-NAME.
 267 Return nil if we cannot, non-nil if we can."
 268   (if (flymake-get-init-function file-name) t nil))
 269
 270 (defun flymake-get-init-function (file-name)
 271   "Return init function to be used for the file."
 272   (let* ((init-f  (nth 0 (flymake-get-file-name-mode-and-masks file-name))))
 273     ;;(flymake-log 0 "calling %s" init-f)
 274     ;;(funcall init-f (current-buffer))
 275     init-f))
 276
 277 (defun flymake-get-cleanup-function (file-name)
 278   "Return cleanup function to be used for the file."
 279   (nth 1 (flymake-get-file-name-mode-and-masks file-name)))
 280
 281 (defun flymake-get-real-file-name-function (file-name)
 282   (or (nth 2 (flymake-get-file-name-mode-and-masks file-name)) 'flymake-get-real-file-name))
 283
 284 (defcustom flymake-buildfile-dirs '("." ".." "../.." "../../.." "../../../.." "../../../../.." "../../../../../.." "../../../../../../.." "../../../../../../../.." "../../../../../../../../.." "../../../../../../../../../.." "../../../../../../../../../../..")
 285   "Dirs to look for buildfile."
 286   :group 'flymake
 287   :type '(repeat (string)))
 288
 289 (defvar flymake-find-buildfile-cache (flymake-makehash 'equal))
 290
 291 (defun flymake-get-buildfile-from-cache (dir-name)
 292   (gethash dir-name flymake-find-buildfile-cache))
 293
 294 (defun flymake-add-buildfile-to-cache (dir-name buildfile)
 295   (puthash dir-name buildfile flymake-find-buildfile-cache))
 296
 297 (defun flymake-clear-buildfile-cache ()
 298   (clrhash flymake-find-buildfile-cache))
 299
 300 (defun flymake-find-buildfile (buildfile-name source-dir-name dirs)
 301   "Find buildfile starting from current directory.
 302 Buildfile includes Makefile, build.xml etc.
 303 Return its file name if found, or nil if not found."
 304   (if (flymake-get-buildfile-from-cache source-dir-name)
 305       (progn
 306         (flymake-get-buildfile-from-cache source-dir-name))
 307     (let* ((buildfile-dir          nil)
 308            (buildfile              nil)
 309            (found                  nil))
 310       (while (and (not found) dirs)
 311         (setq buildfile-dir (concat source-dir-name (car dirs)))
 312         (setq buildfile (concat buildfile-dir "/" buildfile-name))
 313         (when (file-exists-p buildfile)
 314           (setq found t))
 315         (setq dirs (cdr dirs)))
 316       (if found
 317           (progn
 318             (flymake-log 3 "found buildfile at %s/%s" buildfile-dir buildfile-name)
 319             (flymake-add-buildfile-to-cache source-dir-name buildfile-dir)
 320             buildfile-dir)
 321         (progn
 322           (flymake-log 3 "buildfile for %s not found" source-dir-name)
 323           nil)))))
 324
 325 (defun flymake-fix-file-name (name)
 326   "Replace all occurences of '\' with '/'."
 327   (when name
 328     (let* ((new-name (flymake-replace-regexp-in-string "[\\]" "/" (expand-file-name name)))
 329            (last-char (elt new-name (1- (length new-name)))))
 330       (setq new-name (flymake-replace-regexp-in-string "\\./" "" new-name))
 331       (if (equal "/" (char-to-string last-char))
 332           (setq new-name (substring new-name 0 (1- (length new-name)))))
 333       new-name)))
 334
 335 (defun flymake-same-files (file-name-one file-name-two)
 336   "Check if FILE-NAME-ONE and FILE-NAME-TWO point to same file.
 337 Return t if so, nil if not."
 338   (equal (flymake-fix-file-name file-name-one)
 339          (flymake-fix-file-name file-name-two)))
 340
 341 (defun flymake-get-common-file-prefix (string-one string-two)
 342   "Return common prefix for two file names STRING-ONE and STRING-TWO."
 343   (setq string-one (file-name-as-directory string-one))
 344   (setq string-two (file-name-as-directory string-two))
 345   (let ((n (compare-strings string-one nil nil string-two nil nil)))
 346     (if (eq n t) string-one
 347       (setq n (abs (1+ n)))
 348       (file-name-directory (substring string-one 0 n)))))
 349
 350 (defun flymake-build-relative-filename (from-dir to-dir)
 351   "Return rel: FROM-DIR/rel == TO-DIR."
 352   ;; FIXME: Why not use `file-relative-name'?
 353   (if (not (equal (elt from-dir 0) (elt to-dir 0)))
 354       (error "First chars in file names %s, %s must be equal (same drive)"
 355              from-dir to-dir)
 356     (let* ((from (file-name-as-directory (flymake-fix-file-name from-dir)))
 357            (to   (file-name-as-directory (flymake-fix-file-name to-dir)))
 358            (prefix      (flymake-get-common-file-prefix from to))
 359            (from-suffix (substring from (length prefix)))
 360            (up-count    (length (flymake-split-string from-suffix "[/]")))
 361            (to-suffix   (substring to   (length prefix)))
 362            (idx         0)
 363            (rel         nil))
 364       (if (and (> (length to-suffix) 0) (equal "/" (char-to-string (elt to-suffix 0))))
 365           (setq to-suffix (substring to-suffix 1)))
 366
 367       (while (< idx up-count)
 368         (if (> (length rel) 0)
 369             (setq rel (concat rel "/")))
 370         (setq rel (concat rel ".."))
 371         (setq idx (1+ idx)))
 372       (if (> (length rel) 0)
 373           (setq rel (concat rel "/")))
 374       (if (> (length to-suffix) 0)
 375           (setq rel (concat rel to-suffix)))
 376       (or rel "./"))))
 377
 378 (defcustom flymake-master-file-dirs '("." "./src" "./UnitTest")
 379   "Dirs where to look for master files."
 380   :group 'flymake
 381   :type '(repeat (string)))
 382
 383 (defcustom flymake-master-file-count-limit 32
 384   "Max number of master files to check."
 385   :group 'flymake
 386   :type 'integer)
 387
 388 ;; This is bound dynamically to pass a parameter to a sort predicate below
 389 (defvar flymake-included-file-name)
 390
 391 (defun flymake-find-possible-master-files (file-name master-file-dirs masks)
 392   "Find (by name and location) all possible master files.
 393 Master files are .cpp and .c for and .h. Files are searched for
 394 starting from the .h directory and max max-level parent dirs.
 395 File contents are not checked."
 396   (let* ((dirs master-file-dirs)
 397          (files  nil)
 398          (done   nil))
 399
 400     (while (and (not done) dirs)
 401       (let* ((dir (concat (flymake-fix-file-name (file-name-directory file-name))
 402                           "/" (car dirs)))
 403              (masks masks))
 404         (while (and (file-exists-p dir) (not done) masks)
 405           (let* ((mask        (car masks))
 406                  (dir-files   (directory-files dir t mask)))
 407
 408             (flymake-log 3 "dir %s, %d file(s) for mask %s"
 409                          dir (length dir-files) mask)
 410             (while (and (not done) dir-files)
 411               (when (not (file-directory-p (car dir-files)))
 412                 (setq files (cons (car dir-files) files))
 413                 (when (>= (length files) flymake-master-file-count-limit)
 414                   (flymake-log 3 "master file count limit (%d) reached" flymake-master-file-count-limit)
 415                   (setq done t)))
 416               (setq dir-files (cdr dir-files))))
 417           (setq masks (cdr masks))))
 418       (setq dirs (cdr dirs)))
 419     (when files
 420       (let ((flymake-included-file-name (file-name-nondirectory file-name)))
 421         (setq files (sort files 'flymake-master-file-compare))))
 422     (flymake-log 3 "found %d possible master file(s)" (length files))
 423     files))
 424
 425 (defun flymake-master-file-compare (file-one file-two)
 426   "Compare two files speccified by FILE-ONE and FILE-TWO.
 427 This function is used in sort to move most possible file names
 428 to the beginning of the list (File.h -> File.cpp moved to top."
 429   (and (equal (file-name-sans-extension flymake-included-file-name)
 430               (file-name-sans-extension (file-name-nondirectory file-one)))
 431        (not (equal file-one file-two))))
 432
 433 (defcustom flymake-check-file-limit 8192
 434   "Max number of chars to look at when checking possible master file."
 435   :group 'flymake
 436   :type 'integer)
 437
 438 (defun flymake-check-patch-master-file-buffer (master-file-temp-buffer
 439                                                master-file-name patched-master-file-name
 440                                                source-file-name patched-source-file-name
 441                                                include-dirs regexp-list)
 442   "Check if MASTER-FILE-NAME is a master file for SOURCE-FILE-NAME.
 443 For .cpp master file this means it includes SOURCE-FILE-NAME (.h).
 444 If yes, patch a copy of MASTER-FILE-NAME to include PATCHED-SOURCE-FILE-NAME
 445 instead of SOURCE-FILE-NAME.
 446 Whether a buffer for MATER-FILE-NAME exists, use it as a source
 447 instead of reading master file from disk."
 448   (let* ((found                     nil)
 449          (regexp                    (format (nth 0 regexp-list) ; "[ \t]*#[ \t]*include[ \t]*\"\\([\w0-9/\\_\.]*[/\\]*\\)\\(%s\\)\""
 450                                             (file-name-nondirectory source-file-name)))
 451          (path-idx                  (nth 1 regexp-list))
 452          (name-idx                  (nth 2 regexp-list))
 453          (inc-path                  nil)
 454          (inc-name                  nil)
 455          (search-limit              flymake-check-file-limit))
 456     (save-excursion
 457       (unwind-protect
 458           (progn
 459             (set-buffer master-file-temp-buffer)
 460             (when (> search-limit (point-max))
 461               (setq search-limit (point-max)))
 462             (flymake-log 3 "checking %s against regexp %s" master-file-name regexp)
 463             (goto-char (point-min))
 464             (while (and (< (point) search-limit) (re-search-forward regexp search-limit t))
 465               (let* ((match-beg   (match-beginning name-idx))
 466                      (match-end   (match-end name-idx)))
 467
 468                 (flymake-log 3 "found possible match for %s" (file-name-nondirectory source-file-name))
 469                 (setq inc-path (match-string path-idx))
 470                 (setq inc-name (match-string name-idx))
 471                 (when (string= inc-name (file-name-nondirectory source-file-name))
 472                   (flymake-log 3 "inc-path=%s inc-name=%s" inc-path inc-name)
 473                   (when (flymake-check-include source-file-name inc-path inc-name include-dirs)
 474                     (setq found t)
 475                     ;;  replace-match is not used here as it fails in
 476                     ;; XEmacs with 'last match not a buffer' error as
 477                     ;; check-includes calls replace-in-string
 478                     (flymake-replace-region match-beg match-end
 479                                             (file-name-nondirectory patched-source-file-name))))
 480                 (forward-line 1)))
 481             (when found
 482               (flymake-save-buffer-in-file (current-buffer) patched-master-file-name)))
 483         ;;+(flymake-log 3 "killing buffer %s" (buffer-name master-file-temp-buffer))
 484         (kill-buffer master-file-temp-buffer)))
 485     ;;+(flymake-log 3 "check-patch master file %s: %s" master-file-name found)
 486     (when found
 487       (flymake-log 2 "found master file %s" master-file-name))
 488     found))
 489
 490 (defun flymake-replace-region (beg end rep)
 491   "Replace text in BUFFER in region (BEG END) with REP."
 492   (save-excursion
 493     (goto-char end)
 494     ;; Insert before deleting, so as to better preserve markers's positions.
 495     (insert rep)
 496     (delete-region beg end)))
 497
 498 (defun flymake-read-file-to-temp-buffer (file-name)
 499   "Insert contents of FILE-NAME into newly created temp buffer."
 500   (let* ((temp-buffer (get-buffer-create (generate-new-buffer-name (concat "flymake:" (file-name-nondirectory file-name))))))
 501     (with-current-buffer temp-buffer
 502       (insert-file-contents file-name))
 503     temp-buffer))
 504
 505 (defun flymake-copy-buffer-to-temp-buffer (buffer)
 506   "Copy contents of BUFFER into newly created temp buffer."
 507   (let ((contents     nil)
 508         (temp-buffer  nil))
 509     (with-current-buffer buffer
 510       (setq contents (buffer-string))
 511
 512       (setq temp-buffer (get-buffer-create (generate-new-buffer-name (concat "flymake:" (buffer-name buffer)))))
 513       (set-buffer temp-buffer)
 514       (insert contents))
 515     temp-buffer))
 516
 517 (defun flymake-check-include (source-file-name inc-path inc-name include-dirs)
 518   "Check if SOURCE-FILE-NAME can be found in include path.
 519 Return t if it can be found via include path using INC-PATH and INC-NAME."
 520   (if (file-name-absolute-p inc-path)
 521       (flymake-same-files source-file-name (concat inc-path "/" inc-name))
 522     (let* ((file-name  nil)
 523            (found      nil))
 524       (while (and (not found) include-dirs)
 525         (setq file-name (concat (file-name-directory source-file-name)
 526                                 "/" (car include-dirs)))
 527         (if (> (length inc-path) 0)
 528             (setq file-name (concat file-name "/" inc-path)))
 529         (setq file-name (concat file-name "/" inc-name))
 530         (when (flymake-same-files source-file-name file-name)
 531           (setq found t))
 532         (setq include-dirs (cdr include-dirs)))
 533       found)))
 534
 535 (defun flymake-find-buffer-for-file (file-name)
 536   "Check if there exists a buffer visiting FILE-NAME.
 537 Return t if so, nil if not."
 538   (let ((buffer-name (get-file-buffer file-name)))
 539     (if buffer-name
 540         (get-buffer buffer-name))))
 541
 542 (defun flymake-create-master-file (source-file-name patched-source-file-name get-incl-dirs-f create-temp-f masks include-regexp-list)
 543   "Save SOURCE-FILE-NAME with a different name.
 544 Find master file, patch and save it."
 545   (let* ((possible-master-files     (flymake-find-possible-master-files source-file-name flymake-master-file-dirs masks))
 546          (master-file-count         (length possible-master-files))
 547          (idx                       0)
 548          (temp-buffer               nil)
 549          (master-file-name          nil)
 550          (patched-master-file-name  nil)
 551          (found                     nil))
 552
 553     (while (and (not found) (< idx master-file-count))
 554       (setq master-file-name (nth idx possible-master-files))
 555       (setq patched-master-file-name (funcall create-temp-f master-file-name "flymake_master"))
 556       (if (flymake-find-buffer-for-file master-file-name)
 557           (setq temp-buffer (flymake-copy-buffer-to-temp-buffer (flymake-find-buffer-for-file master-file-name)))
 558         (setq temp-buffer (flymake-read-file-to-temp-buffer master-file-name)))
 559       (setq found
 560             (flymake-check-patch-master-file-buffer
 561              temp-buffer
 562              master-file-name
 563              patched-master-file-name
 564              source-file-name
 565              patched-source-file-name
 566              (funcall get-incl-dirs-f (file-name-directory master-file-name))
 567              include-regexp-list))
 568       (setq idx (1+ idx)))
 569     (if found
 570         (list master-file-name patched-master-file-name)
 571       (progn
 572         (flymake-log 3 "none of %d master file(s) checked includes %s" master-file-count
 573                      (file-name-nondirectory source-file-name))
 574         nil))))
 575
 576 (defun flymake-save-buffer-in-file (buffer file-name)
 577   (or buffer
 578       (error "Invalid buffer"))
 579   (with-current-buffer buffer
 580     (save-restriction
 581       (widen)
 582       (make-directory (file-name-directory file-name) 1)
 583       (write-region (point-min) (point-max) file-name nil 566)))
 584   (flymake-log 3 "saved buffer %s in file %s" (buffer-name buffer) file-name))
 585
 586 (defun flymake-save-string-to-file (file-name data)
 587   "Save string DATA to file FILE-NAME."
 588   (write-region data nil file-name nil 566))
 589
 590 (defun flymake-read-file-to-string (file-name)
 591   "Read contents of file FILE-NAME and return as a string."
 592   (with-temp-buffer
 593     (insert-file-contents file-name)
 594     (buffer-substring (point-min) (point-max))))
 595
 596 (defun flymake-process-filter (process output)
 597   "Parse OUTPUT and highlight error lines.
 598 It's flymake process filter."
 599   (let* ((pid               (process-id process))
 600          (source-buffer     (get-buffer (flymake-get-source-buffer-name pid))))
 601
 602     (flymake-log 3 "received %d byte(s) of output from process %d" (length output) pid)
 603     (when source-buffer
 604       (flymake-parse-output-and-residual source-buffer output))))
 605
 606 (defun flymake-process-sentinel (process event)
 607   "Sentinel for syntax check buffers."
 608   (if (memq (process-status process) '(signal exit))
 609       (let*((exit-status       (process-exit-status process))
 610             (command           (process-command process))
 611             (pid               (process-id process))
 612             (source-buffer     (get-buffer (flymake-get-source-buffer-name pid)))
 613             (cleanup-f         (flymake-get-cleanup-function (buffer-file-name source-buffer))))
 614
 615         (flymake-log 2 "process %d exited with code %d" pid exit-status)
 616         (condition-case err
 617             (progn
 618               (flymake-log 3 "cleaning up using %s" cleanup-f)
 619               (funcall cleanup-f source-buffer)
 620
 621               (flymake-unreg-names pid)
 622               (delete-process process)
 623
 624               (when source-buffer
 625                 (with-current-buffer source-buffer
 626
 627                   (flymake-parse-residual source-buffer)
 628                   (flymake-post-syntax-check source-buffer exit-status command)
 629                   (setq flymake-is-running nil))))
 630           (error
 631            (let ((err-str (format "Error in process sentinel for buffer %s: %s"
 632                                   source-buffer (error-message-string err))))
 633              (flymake-log 0 err-str)
 634              (with-current-buffer source-buffer
 635                (setq flymake-is-running nil))))))))
 636
 637 (defun flymake-post-syntax-check (source-buffer exit-status command)
 638   (with-current-buffer source-buffer
 639     (setq flymake-err-info flymake-new-err-info)
 640     (setq flymake-new-err-info nil)
 641     (setq flymake-err-info
 642           (flymake-fix-line-numbers
 643            flymake-err-info 1 (flymake-count-lines source-buffer))))
 644   (flymake-delete-own-overlays source-buffer)
 645   (flymake-highlight-err-lines
 646    source-buffer (with-current-buffer source-buffer flymake-err-info))
 647   (let (err-count warn-count)
 648     (with-current-buffer source-buffer
 649       (setq err-count (flymake-get-err-count flymake-err-info "e"))
 650       (setq warn-count  (flymake-get-err-count flymake-err-info "w"))
 651       (flymake-log 2 "%s: %d error(s), %d warning(s) in %.2f second(s)"
 652                  (buffer-name source-buffer) err-count warn-count
 653                  (- (flymake-float-time) flymake-check-start-time))
 654       (setq flymake-check-start-time nil))
 655
 656     (if (and (equal 0 err-count) (equal 0 warn-count))
 657         (if (equal 0 exit-status)
 658             (flymake-report-status source-buffer "" "") ; PASSED
 659           (if (not (with-current-buffer source-buffer
 660                      flymake-check-was-interrupted))
 661               (flymake-report-fatal-status (current-buffer) "CFGERR"
 662                                            (format "Configuration error has occured while running %s" command))
 663             (flymake-report-status source-buffer nil ""))) ; "STOPPED"
 664       (flymake-report-status source-buffer (format "%d/%d" err-count warn-count) ""))))
 665
 666 (defun flymake-parse-output-and-residual (source-buffer output)
 667   "Split OUTPUT into lines, merge in residual if necessary."
 668   (with-current-buffer source-buffer
 669     (let* ((buffer-residual     flymake-output-residual)
 670            (total-output        (if buffer-residual (concat buffer-residual output) output))
 671            (lines-and-residual  (flymake-split-output total-output))
 672            (lines               (nth 0 lines-and-residual))
 673            (new-residual        (nth 1 lines-and-residual)))
 674       (with-current-buffer source-buffer
 675         (setq flymake-output-residual new-residual)
 676         (setq flymake-new-err-info
 677               (flymake-parse-err-lines
 678                flymake-new-err-info
 679                source-buffer lines))))))
 680
 681 (defun flymake-parse-residual (source-buffer)
 682   "Parse residual if it's non empty."
 683   (with-current-buffer source-buffer
 684     (when flymake-output-residual
 685       (setq flymake-new-err-info
 686             (flymake-parse-err-lines
 687              flymake-new-err-info
 688              source-buffer
 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 eigher 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 (buffer err-info-list)
 795   "Highlight error lines in BUFFER using info from ERR-INFO-LIST."
 796   (with-current-buffer buffer
 797     (let* ((idx    0)
 798            (count  (length err-info-list)))
 799       (while (< idx count)
 800         (flymake-highlight-line (car (nth idx err-info-list)) (nth 1 (nth idx err-info-list)))
 801         (setq idx (1+ idx))))))
 802
 803 (defun flymake-overlay-p (ov)
 804   "Determine whether overlay OV was created by flymake."
 805   (and (overlayp ov) (overlay-get ov 'flymake-overlay)))
 806
 807 (defun flymake-make-overlay (beg end tooltip-text face mouse-face)
 808   "Allocate a flymake overlay in range BEG and END."
 809   (when (not (flymake-region-has-flymake-overlays beg end))
 810     (let ((ov (make-overlay beg end nil t t)))
 811       (overlay-put ov 'face           face)
 812       (overlay-put ov 'mouse-face     mouse-face)
 813       (overlay-put ov 'help-echo      tooltip-text)
 814       (overlay-put ov 'flymake-overlay  t)
 815       (overlay-put ov 'priority 100)
 816       ;;+(flymake-log 3 "created overlay %s" ov)
 817       ov)
 818     (flymake-log 3 "created an overlay at (%d-%d)" beg end)))
 819
 820 (defun flymake-delete-own-overlays (buffer)
 821   "Delete all flymake overlays in BUFFER."
 822   (with-current-buffer buffer
 823     (let ((ov (overlays-in (point-min) (point-max))))
 824       (while (consp ov)
 825         (when (flymake-overlay-p (car ov))
 826           (delete-overlay (car ov))
 827           ;;+(flymake-log 3 "deleted overlay %s" ov)
 828           )
 829         (setq ov (cdr ov))))))
 830
 831 (defun flymake-region-has-flymake-overlays (beg end)
 832   "Check if region specified by BEG and END has overlay.
 833 Return t if it has at least one flymake overlay, nil if no overlay."
 834   (let ((ov                  (overlays-in beg end))
 835         (has-flymake-overlays  nil))
 836     (while (consp ov)
 837       (when (flymake-overlay-p (car ov))
 838         (setq has-flymake-overlays t))
 839       (setq ov (cdr ov)))
 840     has-flymake-overlays))
 841
 842 (defface flymake-errline-face
 843   ;;+   '((((class color)) (:foreground "OrangeRed" :bold t :underline t))
 844   ;;+   '((((class color)) (:underline "OrangeRed"))
 845   '((((class color)) (:background "LightPink"))
 846     (t (:bold t)))
 847   "Face used for marking error lines."
 848   :group 'flymake)
 849
 850 (defface flymake-warnline-face
 851   '((((class color)) (:background "LightBlue2"))
 852     (t (:bold t)))
 853   "Face used for marking warning lines."
 854   :group 'flymake)
 855
 856 (defun flymake-highlight-line (line-no line-err-info-list)
 857   "Highlight line LINE-NO in current buffer.
 858 Perhaps use text from LINE-ERR-INFO-ILST to enhance highlighting."
 859   (goto-line line-no)
 860   (let* ((line-beg (flymake-line-beginning-position))
 861          (line-end (flymake-line-end-position))
 862          (beg      line-beg)
 863          (end      line-end)
 864          (tooltip-text (flymake-ler-get-text (nth 0 line-err-info-list)))
 865          (face     nil))
 866
 867     (goto-char line-beg)
 868     (while (looking-at "[ \t]")
 869       (forward-char))
 870
 871     (setq beg (point))
 872
 873     (goto-char line-end)
 874     (while (and (looking-at "[ \t\r\n]") (> (point) 1))
 875       (backward-char))
 876
 877     (setq end (1+ (point)))
 878
 879     (when (<= end beg)
 880       (setq beg line-beg)
 881       (setq end line-end))
 882
 883     (when (= end beg)
 884       (goto-char end)
 885       (forward-line)
 886       (setq end (point)))
 887
 888     (if (> (flymake-get-line-err-count line-err-info-list "e") 0)
 889         (setq face 'flymake-errline-face)
 890       (setq face 'flymake-warnline-face))
 891
 892     (flymake-make-overlay beg end tooltip-text face nil)))
 893
 894 (defun flymake-parse-err-lines (err-info-list source-buffer lines)
 895   "Parse err LINES, store info in ERR-INFO-LIST."
 896   (let* ((count              (length lines))
 897          (idx                0)
 898          (line-err-info      nil)
 899          (real-file-name     nil)
 900          (source-file-name   (buffer-file-name source-buffer))
 901          (get-real-file-name-f (flymake-get-real-file-name-function source-file-name)))
 902
 903     (while (< idx count)
 904       (setq line-err-info (flymake-parse-line (nth idx lines)))
 905       (when line-err-info
 906         (setq real-file-name (funcall get-real-file-name-f source-buffer (flymake-ler-get-file line-err-info)))
 907         (setq line-err-info (flymake-ler-set-full-file line-err-info real-file-name))
 908
 909         (if (flymake-same-files real-file-name source-file-name)
 910             (setq line-err-info (flymake-ler-set-file line-err-info nil))
 911           (setq line-err-info (flymake-ler-set-file line-err-info (file-name-nondirectory real-file-name))))
 912
 913         (setq err-info-list (flymake-add-err-info err-info-list line-err-info)))
 914       (flymake-log 3 "parsed '%s', %s line-err-info" (nth idx lines) (if line-err-info "got" "no"))
 915       (setq idx (1+ idx)))
 916     err-info-list))
 917
 918 (defun flymake-split-output (output)
 919   "Split OUTPUT into lines.
 920 Return last one as residual if it does not end with newline char.
 921 Returns ((LINES) RESIDUAL)."
 922   (when (and output (> (length output) 0))
 923     (let* ((lines (flymake-split-string output "[\n\r]+"))
 924            (complete (equal "\n" (char-to-string (aref output (1- (length output))))))
 925            (residual nil))
 926       (when (not complete)
 927         (setq residual (car (last lines)))
 928         (setq lines (butlast lines)))
 929       (list lines residual))))
 930
 931 (defun flymake-reformat-err-line-patterns-from-compile-el (original-list)
 932   "Grab error line patterns from ORIGINAL-LIST in compile.el format.
 933 Convert it to flymake internal format."
 934   (let* ((converted-list '()))
 935     (dolist (item original-list)
 936       (setq item (cdr item))
 937       (let ((regexp (nth 0 item))
 938             (file (nth 1 item))
 939             (line (nth 2 item))
 940             (col (nth 3 item)))
 941         (if (consp file)        (setq file (car file)))
 942         (if (consp line)        (setq line (car line)))
 943         (if (consp col) (setq col (car col)))
 944
 945         (when (not (functionp line))
 946           (setq converted-list (cons (list regexp file line col) converted-list)))))
 947     converted-list))
 948
 949 (eval-when-compile
 950   (require 'compile))
 951
 952 (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
 953   (append
 954    '(
 955      ;; MS Visual C++ 6.0
 956      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)) \: \\(\\(error\\|warning\\|fatal error\\) \\(C[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 957       1 3 nil 4)
 958      ;; jikes
 959      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[0-9]+\:[0-9]+\:[0-9]+\: \\(\\(Error\\|Warning\\|Caution\\|Semantic Error\\):[ \t\n]*\\(.+\\)\\)"
 960       1 3 nil 4)
 961      ;; MS midl
 962      ("midl[ ]*:[ ]*\\(command line error .*\\)"
 963       nil nil nil 1)
 964      ;; MS C#
 965      ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\),[0-9]+)\: \\(\\(error\\|warning\\|fatal error\\) \\(CS[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 966       1 3 nil 4)
 967      ;; perl
 968      ("\\(.*\\) at \\([^ \n]+\\) line \\([0-9]+\\)[,.\n]" 2 3 nil 1)
 969      ;; LaTeX warnings (fileless) ("\\(LaTeX \\(Warning\\|Error\\): .*\\) on input line \\([0-9]+\\)" 20 3 nil 1)
 970      ;; ant/javac
 971      (" *\\(\\[javac\\]\\)? *\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[ \t\n]*\\(.+\\)"
 972       2 4 nil 5))
 973    ;; compilation-error-regexp-alist)
 974    (flymake-reformat-err-line-patterns-from-compile-el compilation-error-regexp-alist-alist))
 975   "Patterns for matching error/warning lines.
 976 \(REGEXP FILE-IDX LINE-IDX ERR-TEXT-IDX).
 977 Use `flymake-reformat-err-line-patterns-from-compile-el' to add patterns
 978 from compile.el")
 979
 980 ;;(defcustom flymake-err-line-patterns
 981 ;;  '(
 982 ;;    ; MS Visual C++ 6.0
 983 ;;    ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)) \: \\(\\(error\\|warning\\|fatal error\\) \\(C[0-9]+\\):[ \t\n]*\\(.+\\)\\)"
 984 ;;       1 3 4)
 985 ;;   ; jikes
 986 ;;   ("\\(\\([a-zA-Z]:\\)?[^:(\t\n]+\\)\:\\([0-9]+\\)\:[0-9]+\:[0-9]+\:[0-9]+\: \\(\\(Error\\|Warning\\|Caution\\):[ \t\n]*\\(.+\\)\\)"
 987 ;;       1 3 4))
 988 ;;    "patterns for matching error/warning lines, (regexp file-idx line-idx err-text-idx)"
 989 ;;   :group 'flymake
 990 ;;   :type '(repeat (string number number number))
 991 ;;)
 992
 993 (defun flymake-parse-line (line)
 994   "Parse LINE to see if it is an error of warning.
 995 Return its components if so, nil if no."
 996   (let ((raw-file-name nil)
 997         (line-no 0)
 998         (err-type "e")
 999         (err-text nil)
1000         (patterns flymake-err-line-patterns)
1001         (matched nil))
1002     (while (and patterns (not matched))
1003       (when (string-match (car (car patterns)) line)
1004         (let* ((file-idx (nth 1 (car patterns)))
1005                (line-idx (nth 2 (car patterns))))
1006
1007           (setq raw-file-name (if file-idx (match-string file-idx line) nil))
1008           (setq line-no       (if line-idx (string-to-number (match-string line-idx line)) 0))
1009           (setq err-text      (if (> (length (car patterns)) 4)
1010                                   (match-string (nth 4 (car patterns)) line)
1011                                 (flymake-patch-err-text (substring line (match-end 0)))))
1012           (or err-text (setq err-text "<no error text>"))
1013           (if (and err-text (string-match "^[wW]arning" err-text))
1014               (setq err-type "w")
1015             )
1016           (flymake-log 3 "parse line: file-idx=%s line-idx=%s file=%s line=%s text=%s" file-idx line-idx
1017                        raw-file-name line-no err-text)
1018           (setq matched t)))
1019       (setq patterns (cdr patterns)))
1020     (if matched
1021         (flymake-ler-make-ler raw-file-name line-no err-type err-text)
1022       ())))
1023
1024 (defun flymake-find-err-info (err-info-list line-no)
1025   "Find (line-err-info-list pos) for specified LINE-NO."
1026   (if err-info-list
1027       (let* ((line-err-info-list  nil)
1028              (pos       0)
1029              (count     (length err-info-list)))
1030
1031         (while (and (< pos count) (< (car (nth pos err-info-list)) line-no))
1032           (setq pos (1+ pos)))
1033         (when (and (< pos count) (equal (car (nth pos err-info-list)) line-no))
1034           (setq line-err-info-list (flymake-er-get-line-err-info-list (nth pos err-info-list))))
1035         (list line-err-info-list pos))
1036     '(nil 0)))
1037
1038 (defun flymake-line-err-info-is-less-or-equal (line-one line-two)
1039   (or (string< (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1040       (and (string= (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1041            (not (flymake-ler-get-file line-one)) (flymake-ler-get-file line-two))
1042       (and (string= (flymake-ler-get-type line-one) (flymake-ler-get-type line-two))
1043            (or (and      (flymake-ler-get-file line-one)       (flymake-ler-get-file line-two))
1044                (and (not (flymake-ler-get-file line-one)) (not (flymake-ler-get-file line-two)))))))
1045
1046 (defun flymake-add-line-err-info (line-err-info-list line-err-info)
1047   "Update LINE-ERR-INFO-LIST with the error LINE-ERR-INFO.
1048 For the format of LINE-ERR-INFO, see `flymake-ler-make-ler'.
1049 The new element is inserted in the proper position, according to
1050 the predicate `flymake-line-err-info-is-less-or-equal'.
1051 The updated value of LINE-ERR-INFO-LIST is returned."
1052   (if (not line-err-info-list)
1053       (list line-err-info)
1054     (let* ((count  (length line-err-info-list))
1055            (idx    0))
1056       (while (and (< idx count) (flymake-line-err-info-is-less-or-equal (nth idx line-err-info-list) line-err-info))
1057         (setq idx (1+ idx)))
1058       (cond ((equal 0     idx)    (setq line-err-info-list (cons line-err-info line-err-info-list)))
1059             (t                    (setq line-err-info-list (flymake-ins-after line-err-info-list (1- idx) line-err-info))))
1060       line-err-info-list)))
1061
1062 (defun flymake-add-err-info (err-info-list line-err-info)
1063   "Update ERR-INFO-LIST with the error LINE-ERR-INFO, preserving sort order.
1064 Returns the updated value of ERR-INFO-LIST.
1065 For the format of ERR-INFO-LIST, see `flymake-err-info'.
1066 For the format of LINE-ERR-INFO, see `flymake-ler-make-ler'."
1067   (let* ((line-no             (if (flymake-ler-get-file line-err-info) 1 (flymake-ler-get-line line-err-info)))
1068          (info-and-pos        (flymake-find-err-info err-info-list line-no))
1069          (exists              (car info-and-pos))
1070          (pos                 (nth 1 info-and-pos))
1071          (line-err-info-list  nil)
1072          (err-info            nil))
1073
1074     (if exists
1075         (setq line-err-info-list (flymake-er-get-line-err-info-list (car (nthcdr pos err-info-list)))))
1076     (setq line-err-info-list (flymake-add-line-err-info line-err-info-list line-err-info))
1077
1078     (setq err-info (flymake-er-make-er line-no line-err-info-list))
1079     (cond (exists             (setq err-info-list (flymake-set-at err-info-list pos err-info)))
1080           ((equal 0 pos)      (setq err-info-list (cons err-info err-info-list)))
1081           (t                  (setq err-info-list (flymake-ins-after err-info-list (1- pos) err-info))))
1082     err-info-list))
1083
1084 (defun flymake-get-project-include-dirs-imp (basedir)
1085   "Include dirs for the project current file belongs to."
1086   (if (flymake-get-project-include-dirs-from-cache basedir)
1087       (progn
1088         (flymake-get-project-include-dirs-from-cache basedir))
1089     ;;else
1090     (let* ((command-line  (concat "make -C\"" basedir "\" DUMPVARS=INCLUDE_DIRS dumpvars"))
1091            (output        (shell-command-to-string command-line))
1092            (lines         (flymake-split-string output "\n"))
1093            (count         (length lines))
1094            (idx           0)
1095            (inc-dirs      nil))
1096       (while (and (< idx count) (not (string-match "^INCLUDE_DIRS=.*" (nth idx lines))))
1097         (setq idx (1+ idx)))
1098       (when (< idx count)
1099         (let* ((inc-lines  (flymake-split-string (nth idx lines) " *-I"))
1100                (inc-count  (length inc-lines)))
1101           (while (> inc-count 0)
1102             (when (not (string-match "^INCLUDE_DIRS=.*" (nth (1- inc-count) inc-lines)))
1103               (setq inc-dirs (cons (flymake-replace-regexp-in-string "\"" "" (nth (1- inc-count) inc-lines)) inc-dirs)))
1104             (setq inc-count (1- inc-count)))))
1105       (flymake-add-project-include-dirs-to-cache basedir inc-dirs)
1106       inc-dirs)))
1107
1108 (defcustom flymake-get-project-include-dirs-function 'flymake-get-project-include-dirs-imp
1109   "Function used to get project inc dirs, one paramater: basedir name."
1110   :group 'flymake
1111   :type 'function)
1112
1113 (defun flymake-get-project-include-dirs (basedir)
1114   (funcall flymake-get-project-include-dirs-function basedir))
1115
1116 (defun flymake-get-system-include-dirs ()
1117   "System include dirs - from the 'INCLUDE' env setting."
1118   (let* ((includes (getenv "INCLUDE")))
1119     (if includes (flymake-split-string includes path-separator) nil)))
1120
1121 (defvar flymake-project-include-dirs-cache (flymake-makehash 'equal))
1122
1123 (defun flymake-get-project-include-dirs-from-cache (base-dir)
1124   (gethash base-dir flymake-project-include-dirs-cache))
1125
1126 (defun flymake-add-project-include-dirs-to-cache (base-dir include-dirs)
1127   (puthash base-dir include-dirs flymake-project-include-dirs-cache))
1128
1129 (defun flymake-clear-project-include-dirs-cache ()
1130   (clrhash flymake-project-include-dirs-cache))
1131
1132 (defun flymake-get-include-dirs (base-dir)
1133   "Get dirs to use when resolving local file names."
1134   (let* ((include-dirs (append '(".") (flymake-get-project-include-dirs base-dir) (flymake-get-system-include-dirs))))
1135     include-dirs))
1136
1137 (defun flymake-find-file (rel-file-name include-dirs)
1138   "Iterate through include-dirs to find file REL-FILE-NAME.
1139 Return first 'INCLUDE-DIRS/REL-FILE-NAME' that exists,  or just REL-FILE-NAME if not."
1140   (let* ((count          (length include-dirs))
1141          (idx            0)
1142          (found          nil)
1143          (full-file-name rel-file-name))
1144
1145     (while (and (not found) (< idx count))
1146       (let* ((dir (nth idx include-dirs)))
1147         (setq full-file-name  (concat dir "/" rel-file-name))
1148         (when (file-exists-p full-file-name)
1149           (setq found t)))
1150       (setq idx (1+ idx)))
1151     (if found
1152         full-file-name
1153       rel-file-name)))
1154
1155 (defun flymake-restore-formatting (source-buffer)
1156   "Remove any formatting made by flymake."
1157   )
1158
1159 (defun flymake-get-program-dir (buffer)
1160   "Get dir to start program in."
1161   (unless (bufferp buffer)
1162     (error "Invalid buffer"))
1163   (with-current-buffer buffer
1164     default-directory))
1165
1166 (defun flymake-safe-delete-file (file-name)
1167   (when (and file-name (file-exists-p file-name))
1168     (delete-file file-name)
1169     (flymake-log 1 "deleted file %s" file-name)))
1170
1171 (defun flymake-safe-delete-directory (dir-name)
1172   (condition-case err
1173       (progn
1174         (delete-directory dir-name)
1175         (flymake-log 1 "deleted dir %s" dir-name))
1176     (error
1177      (flymake-log 1 "Failed to delete dir %s, error ignored" dir-name))))
1178
1179 (defcustom flymake-compilation-prevents-syntax-check t
1180   "If non-nil, syntax check won't be started in case compilation is running."
1181   :group 'flymake
1182   :type 'boolean)
1183
1184 (defun flymake-start-syntax-check (buffer)
1185   "Start syntax checking for buffer BUFFER."
1186   (unless (bufferp buffer)
1187     (error "Expected a buffer"))
1188   (with-current-buffer buffer
1189     (flymake-log 3 "flymake is running: %s" flymake-is-running)
1190     (when (and (not flymake-is-running)
1191                (flymake-can-syntax-check-file (buffer-file-name buffer)))
1192       (when (or (not flymake-compilation-prevents-syntax-check)
1193                 (not (flymake-compilation-is-running))) ;+ (flymake-rep-ort-status buffer "COMP")
1194         (flymake-clear-buildfile-cache)
1195         (flymake-clear-project-include-dirs-cache)
1196
1197         (setq flymake-check-was-interrupted nil)
1198         (setq flymake-buffer-data (flymake-makehash 'equal))
1199
1200         (let* ((source-file-name  (buffer-file-name buffer))
1201                (init-f (flymake-get-init-function source-file-name))
1202                (cleanup-f (flymake-get-cleanup-function source-file-name))
1203                (cmd-and-args (funcall init-f buffer))
1204                (cmd          (nth 0 cmd-and-args))
1205                (args         (nth 1 cmd-and-args))
1206                (dir          (nth 2 cmd-and-args)))
1207           (if (not cmd-and-args)
1208               (progn
1209                 (flymake-log 0 "init function %s for %s failed, cleaning up" init-f source-file-name)
1210                 (funcall cleanup-f buffer))
1211             (progn
1212               (setq flymake-last-change-time nil)
1213               (flymake-start-syntax-check-process buffer cmd args dir))))))))
1214
1215 (defun flymake-start-syntax-check-process (buffer cmd args dir)
1216   "Start syntax check process."
1217   (let* ((process nil))
1218     (condition-case err
1219         (progn
1220           (when dir
1221             (let ((default-directory dir))
1222               (flymake-log 3 "starting process on dir %s" default-directory)))
1223           (setq process (get-process (apply 'start-process "flymake-proc" nil cmd args)))
1224           (set-process-sentinel process 'flymake-process-sentinel)
1225           (set-process-filter process 'flymake-process-filter)
1226
1227           (flymake-reg-names (process-id process) (buffer-name buffer))
1228
1229           (with-current-buffer buffer
1230             (setq flymake-is-running t)
1231             (setq flymake-last-change-time nil)
1232             (setq flymake-check-start-time (flymake-float-time)))
1233
1234           (flymake-report-status buffer nil "*")
1235           (flymake-log 2 "started process %d, command=%s, dir=%s"
1236                        (process-id process) (process-command process) default-directory)
1237           process)
1238       (error
1239        (let* ((err-str (format "Failed to launch syntax check process '%s' with args %s: %s"
1240                                cmd args (error-message-string err)))
1241               (source-file-name (buffer-file-name buffer))
1242               (cleanup-f        (flymake-get-cleanup-function source-file-name)))
1243          (flymake-log 0 err-str)
1244          (funcall cleanup-f buffer)
1245          (flymake-report-fatal-status buffer "PROCERR" err-str))))))
1246
1247 (defun flymake-kill-process (pid &optional rest)
1248   "Kill process PID."
1249   (signal-process pid 9)
1250   (let* ((buffer-name (flymake-get-source-buffer-name pid)))
1251     (when (and buffer-name (get-buffer buffer-name))
1252       (with-current-buffer (get-buffer buffer-name)
1253         (setq flymake-check-was-interrupted t))))
1254   (flymake-log 1 "killed process %d" pid))
1255
1256 (defun flymake-stop-all-syntax-checks ()
1257   "Kill all syntax check processes."
1258   (interactive)
1259   (let ((pids  (copy-hash-table flymake-pid-to-names)))
1260     (maphash 'flymake-kill-process pids)))
1261
1262 (defun flymake-compilation-is-running ()
1263   (and (boundp 'compilation-in-progress)
1264        compilation-in-progress))
1265
1266 (defun flymake-compile ()
1267   "Kill all flymake syntax checks, start compilation."
1268   (interactive)
1269   (flymake-stop-all-syntax-checks)
1270   (call-interactively 'compile))
1271
1272 (defvar flymake-is-running nil
1273   "If t, flymake syntax check process is running for the current buffer.")
1274
1275 (make-variable-buffer-local 'flymake-is-running)
1276
1277 (defvar flymake-timer nil
1278   "Timer for starting syntax check.")
1279
1280 (make-variable-buffer-local 'flymake-timer)
1281
1282 (defvar flymake-last-change-time nil
1283   "Time of last buffer change.")
1284
1285 (make-variable-buffer-local 'flymake-last-change-time)
1286
1287 (defvar flymake-check-start-time nil
1288   "Time at which syntax check was started.")
1289
1290 (make-variable-buffer-local 'flymake-check-start-time)
1291
1292 (defvar flymake-check-was-interrupted nil
1293   "Non-nil if syntax check was killed by `flymake-compile'.")
1294
1295 (make-variable-buffer-local 'flymake-check-was-interrupted)
1296
1297 (defcustom flymake-no-changes-timeout 0.5
1298   "Time to wait after last change before starting compilation."
1299   :group 'flymake
1300   :type 'number)
1301
1302 (defun flymake-on-timer-event (buffer)
1303   "Start a syntax check for buffer BUFFER if necessary."
1304   (when (bufferp buffer)
1305     (with-current-buffer buffer
1306       (when (and (not flymake-is-running)
1307                  flymake-last-change-time
1308                  (> (flymake-float-time) (+ flymake-no-changes-timeout flymake-last-change-time)))
1309
1310         (setq flymake-last-change-time nil)
1311         (flymake-log 3 "starting syntax check as more than 1 second passed since last change")
1312         (flymake-start-syntax-check buffer)))))
1313
1314 (defun flymake-start-syntax-check-for-current-buffer ()
1315   "Run `flymake-start-syntax-check' for current buffer if it isn't already running."
1316   (interactive)
1317   (flymake-start-syntax-check (current-buffer)))
1318
1319 (defun flymake-current-line-no ()
1320   "Return number of current line in current buffer."
1321   (interactive)
1322   (let ((beg  (point-min))
1323         (end  (if (= (point) (point-max)) (point) (1+ (point)))))
1324     (count-lines beg end)))
1325
1326 (defun flymake-count-lines (buffer)
1327   "Return number of lines in buffer BUFFER."
1328   (with-current-buffer buffer
1329     (count-lines (point-min) (point-max))))
1330
1331 (defun flymake-get-point-pixel-pos ()
1332   "Return point position in pixels: (x, y)."
1333   (let ((mouse-pos  (mouse-position))
1334         (pixel-pos  nil)
1335         (ret        nil))
1336     (if (car (cdr mouse-pos))
1337         (progn
1338           (set-mouse-position (flymake-selected-frame) (current-column) (flymake-current-row))
1339           (setq pixel-pos (mouse-pixel-position))
1340           (set-mouse-position (car mouse-pos) (car (cdr mouse-pos)) (cdr (cdr mouse-pos)))
1341           (setq ret (list (car (cdr pixel-pos)) (cdr (cdr pixel-pos)))))
1342       (progn
1343         (setq ret '(0 0))))
1344     (flymake-log 3 "mouse pos is %s" ret)
1345     ret))
1346
1347 (defun flymake-display-err-menu-for-current-line ()
1348   "Display a menu with errors/warnings for current line if it has errors and/or warnings."
1349   (interactive)
1350   (let* ((line-no             (flymake-current-line-no))
1351          (line-err-info-list  (nth 0 (flymake-find-err-info flymake-err-info line-no)))
1352          (menu-data           (flymake-make-err-menu-data line-no line-err-info-list))
1353          (choice              nil)
1354          (mouse-pos           (flymake-get-point-pixel-pos))
1355          (menu-pos            (list (flymake-get-point-pixel-pos) (selected-window))))
1356     (if menu-data
1357         (progn
1358           (setq choice (flymake-popup-menu menu-pos menu-data))
1359           (flymake-log 3 "choice=%s" choice)
1360           (when choice
1361             (eval choice)))
1362       (flymake-log 1 "no errors for line %d" line-no))))
1363
1364 (defun flymake-make-err-menu-data (line-no line-err-info-list)
1365   "Make a (menu-title (item-title item-action)*) list with errors/warnings from line-err-info."
1366   (let* ((menu-items  nil))
1367     (when line-err-info-list
1368       (let* ((count           (length line-err-info-list))
1369              (menu-item-text  nil))
1370         (while (> count 0)
1371           (setq menu-item-text (flymake-ler-get-text (nth (1- count) line-err-info-list)))
1372           (let* ((file       (flymake-ler-get-file (nth (1- count) line-err-info-list)))
1373                  (full-file  (flymake-ler-get-full-file (nth (1- count) line-err-info-list)))
1374                  (line       (flymake-ler-get-line (nth (1- count) line-err-info-list))))
1375             (if file
1376                 (setq menu-item-text (concat menu-item-text " - " file "(" (format "%d" line) ")")))
1377             (setq menu-items (cons (list menu-item-text
1378                                          (if file (list 'flymake-goto-file-and-line full-file line) nil))
1379                                    menu-items)))
1380           (setq count (1- count)))
1381         (flymake-log 3 "created menu-items with %d item(s)" (length menu-items))))
1382     (if menu-items
1383         (let* ((menu-title  (format "Line %d: %d error(s), %d warning(s)" line-no
1384                                     (flymake-get-line-err-count line-err-info-list "e")
1385                                     (flymake-get-line-err-count line-err-info-list "w"))))
1386           (list menu-title menu-items))
1387       nil)))
1388
1389 (defun flymake-goto-file-and-line (file line)
1390   "Try to get buffer for FILE and goto line LINE in it."
1391   (if (not (file-exists-p file))
1392       (flymake-log 1 "file %s does not exists" file)
1393     (progn
1394       (find-file file)
1395       (goto-line line))))
1396
1397 ;; flymake minor mode declarations
1398 (defvar flymake-mode-line nil)
1399
1400 (make-variable-buffer-local 'flymake-mode-line)
1401
1402 (defvar flymake-mode-line-e-w nil)
1403
1404 (make-variable-buffer-local 'flymake-mode-line-e-w)
1405
1406 (defvar flymake-mode-line-status nil)
1407
1408 (make-variable-buffer-local 'flymake-mode-line-status)
1409
1410 (defun flymake-report-status (buffer e-w &optional status)
1411   "Show status in mode line."
1412   (when (bufferp buffer)
1413     (with-current-buffer buffer
1414       (when e-w
1415         (setq flymake-mode-line-e-w e-w))
1416       (when status
1417         (setq flymake-mode-line-status status))
1418       (let* ((mode-line " Flymake"))
1419         (when (> (length flymake-mode-line-e-w) 0)
1420           (setq mode-line (concat mode-line ":" flymake-mode-line-e-w)))
1421         (setq mode-line (concat mode-line flymake-mode-line-status))
1422         (setq flymake-mode-line mode-line)
1423         (force-mode-line-update)))))
1424
1425 (defun flymake-display-warning (warning)
1426   "Display a warning to user."
1427   (message-box warning))
1428
1429 (defcustom flymake-gui-warnings-enabled t
1430   "Enables/disables gui warnings."
1431   :group 'flymake
1432   :type 'boolean)
1433
1434 (defun flymake-report-fatal-status (buffer status warning)
1435   "Display a warning and switch flymake mode off."
1436   (when flymake-gui-warnings-enabled
1437     (flymake-display-warning (format "Flymake: %s. Flymake will be switched OFF" warning))
1438     )
1439   (with-current-buffer buffer
1440     (flymake-mode 0)
1441     (flymake-log 0 "switched OFF Flymake mode for buffer %s due to fatal status %s, warning %s"
1442                  (buffer-name buffer) status warning)))
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   (if flymake-mode
1451       (if (flymake-can-syntax-check-file (buffer-file-name))
1452           (flymake-mode-on)
1453         (flymake-log 2 "flymake cannot check syntax in buffer %s" (buffer-name)))
1454     (flymake-mode-off)))
1455
1456 (defcustom flymake-start-syntax-check-on-find-file t
1457   "Start syntax check on find file."
1458   :group 'flymake
1459   :type 'boolean)
1460
1461 ;;;###autoload
1462 (defun flymake-mode-on ()
1463   "Turn flymake mode on."
1464   (when (not flymake-mode)
1465     (make-local-variable 'after-change-functions)
1466     (setq after-change-functions (cons 'flymake-after-change-function after-change-functions))
1467     (add-hook 'after-save-hook 'flymake-after-save-hook)
1468     (add-hook 'kill-buffer-hook 'flymake-kill-buffer-hook)
1469     ;;+(add-hook 'find-file-hook 'flymake-find-file-hook)
1470
1471     (flymake-report-status (current-buffer) "" "")
1472
1473     (setq flymake-timer
1474           (run-at-time nil 1 'flymake-on-timer-event (current-buffer)))
1475
1476     (setq flymake-mode t)
1477     (flymake-log 1 "flymake mode turned ON for buffer %s" (buffer-name (current-buffer)))
1478     (when flymake-start-syntax-check-on-find-file
1479       (flymake-start-syntax-check-for-current-buffer)))) ; will be started by on-load hook
1480
1481 ;;;###autoload
1482 (defun flymake-mode-off ()
1483   "Turn flymake mode off."
1484   (when flymake-mode
1485     (setq after-change-functions (delq 'flymake-after-change-function  after-change-functions))
1486     (remove-hook 'after-save-hook (function flymake-after-save-hook) t)
1487     (remove-hook 'kill-buffer-hook (function flymake-kill-buffer-hook) t)
1488     ;;+(remove-hook 'find-file-hook (function flymake-find-file-hook) t)
1489
1490     (flymake-delete-own-overlays (current-buffer))
1491
1492     (when flymake-timer
1493       (cancel-timer flymake-timer)
1494       (setq flymake-timer nil))
1495
1496     (setq flymake-is-running nil)
1497     (setq flymake-mode nil)
1498     (flymake-log 1 "flymake mode turned OFF for buffer %s" (buffer-name (current-buffer)))))
1499
1500 (defcustom flymake-start-syntax-check-on-newline t
1501   "Start syntax check if newline char was added/removed from the buffer."
1502   :group 'flymake
1503   :type 'boolean)
1504
1505 (defun flymake-after-change-function (start stop len)
1506   "Start syntax check for current buffer if it isn't already running."
1507   ;;+(flymake-log 0 "setting change time to %s" (flymake-float-time))
1508   (let((new-text (buffer-substring start stop)))
1509     (when (and flymake-start-syntax-check-on-newline (equal new-text "\n"))
1510       (flymake-log 3 "starting syntax check as new-line has been seen")
1511       (flymake-start-syntax-check-for-current-buffer))
1512     (setq flymake-last-change-time (flymake-float-time))))
1513
1514 (defun flymake-after-save-hook ()
1515   (if (local-variable-p 'flymake-mode (current-buffer)) ; (???) other way to determine whether flymake is active in buffer being saved?
1516       (progn
1517         (flymake-log 3 "starting syntax check as buffer was saved")
1518         (flymake-start-syntax-check-for-current-buffer)))) ; no more mode 3. cannot start check if mode 3 (to temp copies) is active - (???)
1519
1520 (defun flymake-kill-buffer-hook ()
1521   (when flymake-timer
1522     (cancel-timer flymake-timer)
1523     (setq flymake-timer nil)))
1524
1525 (defun flymake-find-file-hook ()
1526   ;;+(when flymake-start-syntax-check-on-find-file
1527   ;;+    (flymake-log 3 "starting syntax check on file open")
1528   ;;+    (flymake-start-syntax-check-for-current-buffer)
1529   ;;+)
1530   (when (and (not (local-variable-p 'flymake-mode (current-buffer)))
1531              (flymake-can-syntax-check-file (buffer-file-name (current-buffer))))
1532     (flymake-mode)
1533     (flymake-log 3 "automatically turned ON flymake mode")))
1534
1535 (defun flymake-get-first-err-line-no (err-info-list)
1536   "Return first line with error."
1537   (when err-info-list
1538     (flymake-er-get-line (car err-info-list))))
1539
1540 (defun flymake-get-last-err-line-no (err-info-list)
1541   "Return last line with error."
1542   (when err-info-list
1543     (flymake-er-get-line (nth (1- (length err-info-list)) err-info-list))))
1544
1545 (defun flymake-get-next-err-line-no (err-info-list line-no)
1546   "Return next line with error."
1547   (when err-info-list
1548     (let* ((count  (length err-info-list))
1549            (idx    0))
1550       (while (and (< idx count) (>= line-no (flymake-er-get-line (nth idx err-info-list))))
1551         (setq idx (1+ idx)))
1552       (if (< idx count)
1553           (flymake-er-get-line (nth idx err-info-list))))))
1554
1555 (defun flymake-get-prev-err-line-no (err-info-list line-no)
1556   "Return prev line with error."
1557   (when err-info-list
1558     (let* ((count (length err-info-list)))
1559       (while (and (> count 0) (<= line-no (flymake-er-get-line (nth (1- count) err-info-list))))
1560         (setq count (1- count)))
1561       (if (> count 0)
1562           (flymake-er-get-line (nth (1- count) err-info-list))))))
1563
1564 (defun flymake-skip-whitespace ()
1565   "Move forward until non-whitespace is reached."
1566   (while (looking-at "[ \t]")
1567     (forward-char)))
1568
1569 (defun flymake-goto-line (line-no)
1570   "Go to line LINE-NO, then skip whitespace."
1571   (goto-line line-no)
1572   (flymake-skip-whitespace))
1573
1574 (defun flymake-goto-next-error ()
1575   "Go to next error in err ring."
1576   (interactive)
1577   (let ((line-no (flymake-get-next-err-line-no flymake-err-info (flymake-current-line-no))))
1578     (when (not line-no)
1579       (setq line-no (flymake-get-first-err-line-no flymake-err-info))
1580       (flymake-log 1 "passed end of file"))
1581     (if line-no
1582         (flymake-goto-line line-no)
1583       (flymake-log 1 "no errors in current buffer"))))
1584
1585 (defun flymake-goto-prev-error ()
1586   "Go to prev error in err ring."
1587   (interactive)
1588   (let ((line-no (flymake-get-prev-err-line-no flymake-err-info (flymake-current-line-no))))
1589     (when (not line-no)
1590       (setq line-no (flymake-get-last-err-line-no flymake-err-info))
1591       (flymake-log 1 "passed beginning of file"))
1592     (if line-no
1593         (flymake-goto-line line-no)
1594       (flymake-log 1 "no errors in current buffer"))))
1595
1596 (defun flymake-patch-err-text (string)
1597   (if (string-match "^[\n\t :0-9]*\\(.*\\)$" string)
1598       (match-string 1 string)
1599     string))
1600
1601 ;;;; general init-cleanup and helper routines
1602 (defun flymake-create-temp-inplace (file-name prefix)
1603   (unless (stringp file-name)
1604     (error "Invalid file-name"))
1605   (or prefix
1606       (setq prefix "flymake"))
1607   (let* ((temp-name   (concat (file-name-sans-extension file-name)
1608                               "_" prefix
1609                               (and (file-name-extension file-name)
1610                                    (concat "." (file-name-extension file-name))))))
1611     (flymake-log 3 "create-temp-inplace: file=%s temp=%s" file-name temp-name)
1612     temp-name))
1613
1614 (defun flymake-create-temp-with-folder-structure (file-name prefix)
1615   (unless (stringp file-name)
1616     (error "Invalid file-name"))
1617
1618   (let* ((dir       (file-name-directory file-name))
1619          (slash-pos (string-match "/" dir))
1620          (temp-dir  (concat (file-name-as-directory (flymake-get-temp-dir)) (substring dir (1+ slash-pos)))))
1621
1622     (file-truename (concat (file-name-as-directory temp-dir)
1623                            (file-name-nondirectory file-name)))))
1624
1625 (defun flymake-strrchr (str ch)
1626   (let* ((count  (length str))
1627          (pos    nil))
1628     (while (and (not pos) (> count 0))
1629       (if (= ch (elt str (1- count)))
1630           (setq pos (1- count)))
1631       (setq count (1- count)))
1632     pos))
1633
1634 (defun flymake-delete-temp-directory (dir-name)
1635   "Attempt to delete temp dir created by `flymake-create-temp-with-folder-structure', do not fail on error."
1636   (let* ((temp-dir    (flymake-get-temp-dir))
1637          (suffix      (substring dir-name (1+ (length temp-dir))))
1638          (slash-pos   nil))
1639
1640     (while (> (length suffix) 0)
1641       ;;+(flymake-log 0 "suffix=%s" suffix)
1642       (flymake-safe-delete-directory (file-truename (concat (file-name-as-directory temp-dir) suffix)))
1643       (setq slash-pos (flymake-strrchr suffix (string-to-char "/")))
1644       (if slash-pos
1645           (setq suffix (substring suffix 0 slash-pos))
1646         (setq suffix "")))))
1647
1648 (defun flymake-init-create-temp-buffer-copy (buffer create-temp-f)
1649   "Make a temporary copy of the current buffer, save its name in buffer data and return the name."
1650   (let*  ((source-file-name       (buffer-file-name buffer))
1651           (temp-source-file-name  (funcall create-temp-f source-file-name "flymake")))
1652
1653     (flymake-save-buffer-in-file buffer temp-source-file-name)
1654     (flymake-set-buffer-value buffer "temp-source-file-name" temp-source-file-name)
1655     temp-source-file-name))
1656
1657 (defun flymake-simple-cleanup (buffer)
1658   "Do cleanup after `flymake-init-create-temp-buffer-copy'.
1659 Delete temp file."
1660   (let* ((temp-source-file-name (flymake-get-buffer-value buffer "temp-source-file-name")))
1661     (flymake-safe-delete-file temp-source-file-name)
1662     (with-current-buffer buffer
1663       (setq flymake-last-change-time nil))))
1664
1665 (defun flymake-get-real-file-name (buffer file-name-from-err-msg)
1666   "Translate file name from error message to \"real\" file name.
1667 Return full-name.  Names are real, not patched."
1668   (let* ((real-name              nil)
1669          (source-file-name       (buffer-file-name buffer))
1670          (master-file-name       (flymake-get-buffer-value buffer "master-file-name"))
1671          (temp-source-file-name  (flymake-get-buffer-value buffer "temp-source-file-name"))
1672          (temp-master-file-name  (flymake-get-buffer-value buffer "temp-master-file-name"))
1673          (base-dirs              (list (flymake-get-buffer-value buffer "base-dir")
1674                                        (file-name-directory source-file-name)
1675                                        (if master-file-name (file-name-directory master-file-name) nil)))
1676          (files                  (list (list source-file-name       source-file-name)
1677                                        (list temp-source-file-name  source-file-name)
1678                                        (list master-file-name       master-file-name)
1679                                        (list temp-master-file-name  master-file-name))))
1680
1681     (when (equal 0 (length file-name-from-err-msg))
1682       (setq file-name-from-err-msg source-file-name))
1683
1684     (setq real-name (flymake-get-full-patched-file-name file-name-from-err-msg base-dirs files))
1685     ;; if real-name is nil, than file name from err msg is none of the files we've patched
1686     (if (not real-name)
1687         (setq real-name (flymake-get-full-nonpatched-file-name file-name-from-err-msg base-dirs)))
1688     (if (not real-name)
1689         (setq real-name file-name-from-err-msg))
1690     (setq real-name (flymake-fix-file-name real-name))
1691     (flymake-log 3 "get-real-file-name: file-name=%s real-name=%s" file-name-from-err-msg real-name)
1692     real-name))
1693
1694 (defun flymake-get-full-patched-file-name (file-name-from-err-msg base-dirs files)
1695   (let* ((base-dirs-count  (length base-dirs))
1696          (file-count       (length files))
1697          (real-name        nil))
1698
1699     (while (and (not real-name) (> base-dirs-count 0))
1700       (setq file-count (length files))
1701       (while (and (not real-name) (> file-count 0))
1702         (let* ((this-dir        (nth (1- base-dirs-count) base-dirs))
1703                (this-file       (nth 0 (nth (1- file-count) files)))
1704                (this-real-name  (nth 1 (nth (1- file-count) files))))
1705           ;;+(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)
1706           (when (and this-dir this-file (flymake-same-files
1707                                          (expand-file-name file-name-from-err-msg this-dir)
1708                                          this-file))
1709             (setq real-name this-real-name)))
1710         (setq file-count (1- file-count)))
1711       (setq base-dirs-count (1- base-dirs-count)))
1712     real-name))
1713
1714 (defun flymake-get-full-nonpatched-file-name (file-name-from-err-msg base-dirs)
1715   (let* ((real-name  nil))
1716     (if (file-name-absolute-p file-name-from-err-msg)
1717         (setq real-name file-name-from-err-msg)
1718       (let* ((base-dirs-count  (length base-dirs)))
1719         (while (and (not real-name) (> base-dirs-count 0))
1720           (let* ((full-name (expand-file-name file-name-from-err-msg
1721                                               (nth (1- base-dirs-count) base-dirs))))
1722             (if (file-exists-p full-name)
1723                 (setq real-name full-name))
1724             (setq base-dirs-count (1- base-dirs-count))))))
1725     real-name))
1726
1727 (defun flymake-init-find-buildfile-dir (buffer source-file-name buildfile-name)
1728   "Find buildfile, store its dir in buffer data and return its dir, if found."
1729   (let* ((buildfile-dir  (flymake-find-buildfile buildfile-name
1730                                                  (file-name-directory source-file-name)
1731                                                  flymake-buildfile-dirs)))
1732     (if (not buildfile-dir)
1733         (progn
1734           (flymake-log 1 "no buildfile (%s) for %s" buildfile-name source-file-name)
1735           (flymake-report-fatal-status buffer "NOMK" (format "No buildfile (%s) found for %s" buildfile-name source-file-name))
1736           )
1737       (progn
1738         (flymake-set-buffer-value buffer "base-dir" buildfile-dir)))
1739     buildfile-dir))
1740
1741 (defun flymake-init-create-temp-source-and-master-buffer-copy (buffer get-incl-dirs-f create-temp-f master-file-masks include-regexp-list)
1742   "Find master file (or buffer), create it's copy along with a copy of the source file."
1743   (let* ((source-file-name       (buffer-file-name buffer))
1744          (temp-source-file-name  (flymake-init-create-temp-buffer-copy buffer create-temp-f))
1745          (master-file-name       nil)
1746          (temp-master-file-name  nil)
1747          (master-and-temp-master (flymake-create-master-file
1748                                   source-file-name temp-source-file-name
1749                                   get-incl-dirs-f create-temp-f
1750                                   master-file-masks include-regexp-list)))
1751
1752     (if (not master-and-temp-master)
1753         (progn
1754           (flymake-log 1 "cannot find master file for %s" source-file-name)
1755           (flymake-report-status buffer "!" "") ; NOMASTER
1756           )
1757       (progn
1758         (setq master-file-name       (nth 0 master-and-temp-master))
1759         (setq temp-master-file-name  (nth 1 master-and-temp-master))
1760         (flymake-set-buffer-value buffer "master-file-name"      master-file-name)
1761         (flymake-set-buffer-value buffer "temp-master-file-name" temp-master-file-name)
1762         ))
1763     temp-master-file-name))
1764
1765 (defun flymake-master-cleanup (buffer)
1766   (flymake-simple-cleanup buffer)
1767   (flymake-safe-delete-file (flymake-get-buffer-value buffer "temp-master-file-name")))
1768
1769 ;;;; make-specific init-cleanup routines
1770 (defun flymake-get-syntax-check-program-args (source-file-name base-dir use-relative-base-dir use-relative-source get-cmd-line-f)
1771   "Create a command line for syntax check using GET-CMD-LINE-F."
1772   (let* ((my-base-dir  base-dir)
1773          (my-source    source-file-name))
1774
1775     (when use-relative-base-dir
1776       (setq my-base-dir (flymake-build-relative-filename (file-name-directory source-file-name) base-dir)))
1777
1778     (when use-relative-source
1779       (setq my-source (concat (flymake-build-relative-filename base-dir (file-name-directory source-file-name))
1780                               (file-name-nondirectory source-file-name))))
1781     (funcall get-cmd-line-f my-source my-base-dir)))
1782
1783 (defun flymake-get-make-cmdline (source base-dir)
1784   (list "make"
1785         (list "-s"
1786               "-C"
1787               base-dir
1788               (concat "CHK_SOURCES=" source)
1789               "SYNTAX_CHECK_MODE=1"
1790               "check-syntax")))
1791
1792 (defun flymake-get-ant-cmdline (source base-dir)
1793   (list "ant"
1794         (list "-buildfile"
1795               (concat base-dir "/" "build.xml")
1796               (concat "-DCHK_SOURCES=" source)
1797               "check-syntax")))
1798
1799 (defun flymake-simple-make-init-impl (buffer create-temp-f use-relative-base-dir use-relative-source build-file-name get-cmdline-f)
1800   "Create syntax check command line for a directly checked source file.
1801 Use CREATE-TEMP-F for creating temp copy."
1802   (let* ((args nil)
1803          (source-file-name   (buffer-file-name buffer))
1804          (buildfile-dir      (flymake-init-find-buildfile-dir buffer source-file-name build-file-name)))
1805     (if buildfile-dir
1806         (let* ((temp-source-file-name  (flymake-init-create-temp-buffer-copy buffer create-temp-f)))
1807           (setq args (flymake-get-syntax-check-program-args temp-source-file-name buildfile-dir
1808                                                             use-relative-base-dir use-relative-source
1809                                                             get-cmdline-f))))
1810     args))
1811
1812 (defun flymake-simple-make-init (buffer)
1813   (flymake-simple-make-init-impl buffer 'flymake-create-temp-inplace t t "Makefile" 'flymake-get-make-cmdline))
1814
1815 (defun flymake-master-make-init (buffer get-incl-dirs-f master-file-masks include-regexp-list)
1816   "Create make command line for a source file checked via master file compilation."
1817   (let* ((make-args nil)
1818          (temp-master-file-name (flymake-init-create-temp-source-and-master-buffer-copy
1819                                  buffer get-incl-dirs-f 'flymake-create-temp-inplace
1820                                  master-file-masks include-regexp-list)))
1821     (when temp-master-file-name
1822       (let* ((buildfile-dir (flymake-init-find-buildfile-dir buffer temp-master-file-name "Makefile")))
1823         (if  buildfile-dir
1824             (setq make-args (flymake-get-syntax-check-program-args
1825                              temp-master-file-name buildfile-dir nil nil 'flymake-get-make-cmdline)))))
1826     make-args))
1827
1828 (defun flymake-find-make-buildfile (source-dir)
1829   (flymake-find-buildfile "Makefile" source-dir flymake-buildfile-dirs))
1830
1831 ;;;; .h/make specific
1832 (defun flymake-master-make-header-init (buffer)
1833   (flymake-master-make-init buffer
1834                             'flymake-get-include-dirs
1835                             '(".+\\.cpp$" ".+\\.c$")
1836                             '("[ \t]*#[ \t]*include[ \t]*\"\\([\w0-9/\\_\.]*[/\\]*\\)\\(%s\\)\"" 1 2)))
1837
1838 ;;;; .java/make specific
1839 (defun flymake-simple-make-java-init (buffer)
1840   (flymake-simple-make-init-impl buffer 'flymake-create-temp-with-folder-structure nil nil "Makefile" 'flymake-get-make-cmdline))
1841
1842 (defun flymake-simple-ant-java-init (buffer)
1843   (flymake-simple-make-init-impl buffer 'flymake-create-temp-with-folder-structure nil nil "build.xml" 'flymake-get-ant-cmdline))
1844
1845 (defun flymake-simple-java-cleanup (buffer)
1846   "Cleanup after `flymake-simple-make-java-init' -- delete temp file and dirs."
1847   (let* ((temp-source-file-name (flymake-get-buffer-value buffer "temp-source-file-name")))
1848     (flymake-safe-delete-file temp-source-file-name)
1849     (when temp-source-file-name
1850       (flymake-delete-temp-directory (file-name-directory temp-source-file-name)))))
1851
1852 ;;;; perl-specific init-cleanup routines
1853 (defun flymake-perl-init (buffer)
1854   (let* ((temp-file   (flymake-init-create-temp-buffer-copy
1855                        buffer 'flymake-create-temp-inplace))
1856          (local-file  (concat (flymake-build-relative-filename
1857                                (file-name-directory buffer-file-name)
1858                                (file-name-directory temp-file))
1859                               (file-name-nondirectory temp-file))))
1860     (list "perl" (list "-wc " local-file))))
1861
1862 ;;;; tex-specific init-cleanup routines
1863 (defun flymake-get-tex-args (file-name)
1864   ;;(list "latex" (list "-c-style-errors" file-name))
1865   (list "texify" (list "--pdf" "--tex-option=-c-style-errors" file-name)))
1866
1867 (defun flymake-simple-tex-init (buffer)
1868   (flymake-get-tex-args (flymake-init-create-temp-buffer-copy buffer 'flymake-create-temp-inplace)))
1869
1870 (defun flymake-master-tex-init (buffer)
1871   (let* ((temp-master-file-name (flymake-init-create-temp-source-and-master-buffer-copy
1872                                  buffer 'flymake-get-include-dirs-dot 'flymake-create-temp-inplace
1873                                  '(".+\\.tex$")
1874                                  '("[ \t]*\\input[ \t]*{\\(.*\\)\\(%s\\)}" 1 2))))
1875     (when temp-master-file-name
1876       (flymake-get-tex-args temp-master-file-name))))
1877
1878 (defun flymake-get-include-dirs-dot (base-dir)
1879   '("."))
1880
1881 ;;;; xml-specific init-cleanup routines
1882 (defun flymake-xml-init (buffer)
1883   (list "xml" (list "val" (flymake-init-create-temp-buffer-copy buffer 'flymake-create-temp-inplace))))
1884
1885 (provide 'flymake)
1886
1887 ;; arch-tag: 8f0d6090-061d-4cac-8862-7c151c4a02dd
1888 ;;; flymake.el ends here