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* lisp/progmodes/gdb-mi.el: Avoid backtracking in regexp matcher.

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(gdb--string-regexp): New constant.
(gdb-tooltip-print, gdb-var-evaluate-expression-handler)
(gdbmi-bnf-stream-record, gdb-jsonify-buffer): Use it.
(gdb-source-file-regexp, gdb-prompt-name-regexp): Use it and change
submatch 1.
(gdb-get-source-file-list, gdb-get-prompt, gdb-get-source-file):
Adjust use accordingly.
(gdb-breakpoints-list-handler-custom): Pre-build the y/n string.
This commit is contained in:
Stefan Monnier 2013-11-17 18:01:23 -05:00
parent de586f99e9
commit 9bc67baa5a
2 changed files with 39 additions and 13 deletions
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12
lisp/ChangeLog
View file

@ -1,3 +1,15 @@
2013-11-17 Stefan Monnier <monnier@iro.umontreal.ca>
* progmodes/gdb-mi.el: Avoid backtracking in regexp matcher.
(gdb--string-regexp): New constant.
(gdb-tooltip-print, gdb-var-evaluate-expression-handler)
(gdbmi-bnf-stream-record, gdb-jsonify-buffer): Use it.
(gdb-source-file-regexp, gdb-prompt-name-regexp): Use it and change
submatch 1.
(gdb-get-source-file-list, gdb-get-prompt, gdb-get-source-file):
Adjust use accordingly.
(gdb-breakpoints-list-handler-custom): Pre-build the y/n string.
2013-11-17 Adam Sokolnicki <adam.sokolnicki@gmail.com> (tiny change)
* progmodes/ruby-mode.el (ruby-toggle-block): Don't stop at

40
lisp/progmodes/gdb-mi.el
View file

@ -1016,11 +1016,15 @@ no input, and GDB is waiting for input."
(declare-function tooltip-show "tooltip" (text &optional use-echo-area))
(defconst gdb--string-regexp "\"\\(?:[^\\\"]\\|\\\\.\\)*\"")
(defun gdb-tooltip-print (expr)
(with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
(goto-char (point-min))
(cond
((re-search-forward ".*value=\\(\".*\"\\)" nil t)
((re-search-forward (concat ".*value=\\(" gdb--string-regexp
"\\)")
nil t)
(tooltip-show
(concat expr " = " (read (match-string 1)))
(or gud-tooltip-echo-area
@ -1198,7 +1202,8 @@ With arg, enter name of variable to be watched in the minibuffer."
(defun gdb-var-evaluate-expression-handler (varnum changed)
(goto-char (point-min))
(re-search-forward ".*value=\\(\".*\"\\)" nil t)
(re-search-forward (concat ".*value=\\(" gdb--string-regexp "\\)")
nil t)
(let ((var (assoc varnum gdb-var-list)))
(when var
(if changed (setcar (nthcdr 5 var) 'changed))
@ -2124,7 +2129,8 @@ a GDB/MI reply message."
'&' c-string"
(when (< gdbmi-bnf-offset (length gud-marker-acc))
(if (and (member (aref gud-marker-acc gdbmi-bnf-offset) '(?~ ?@ ?&))
(string-match "\\([~@&]\\)\\(\".*?\"\\)\n" gud-marker-acc
(string-match (concat "\\([~@&]\\)\\(" gdb--string-regexp "\\)\n")
gud-marker-acc
gdbmi-bnf-offset))
(let ((prefix (match-string 1 gud-marker-acc))
(c-string (match-string 2 gud-marker-acc)))
@ -2586,9 +2592,10 @@ incompatible with GDB/MI output syntax."
(insert "]"))))))
(goto-char (point-min))
(insert "{")
(while (re-search-forward
"\\([[:alnum:]-_]+\\)=\\({\\|\\[\\|\"\"\\|\".*?[^\\]\"\\)" nil t)
(replace-match "\"\\1\":\\2" nil nil))
(let ((re (concat "\\([[:alnum:]-_]+\\)=\\({\\|\\[\\|\"\"\\|"
gdb--string-regexp "\\)")))
(while (re-search-forward re nil t)
(replace-match "\"\\1\":\\2" nil nil)))
(goto-char (point-max))
(insert "}")))
@ -2812,8 +2819,12 @@ See `def-gdb-auto-update-handler'."
(or (bindat-get-field breakpoint 'disp) "")
(let ((flag (bindat-get-field breakpoint 'enabled)))
(if (string-equal flag "y")
(propertize "y" 'font-lock-face font-lock-warning-face)
(propertize "n" 'font-lock-face font-lock-comment-face)))
(eval-when-compile
(propertize "y" 'font-lock-face
font-lock-warning-face))
(eval-when-compile
(propertize "n" 'font-lock-face
font-lock-comment-face))))
(bindat-get-field breakpoint 'addr)
(or (bindat-get-field breakpoint 'times) "")
(if (and type (string-match ".*watchpoint" type))
@ -2865,7 +2876,8 @@ See `def-gdb-auto-update-handler'."
(gdb-put-breakpoint-icon (string-equal flag "y") bptno
(string-to-number line)))))))))
(defvar gdb-source-file-regexp "fullname=\"\\(.*?\\)\"")
(defconst gdb-source-file-regexp
(concat "fullname=\\(" gdb--string-regexp "\\)"))
(defun gdb-get-location (bptno line flag)
"Find the directory containing the relevant source file.
@ -2874,6 +2886,7 @@ Put in buffer and place breakpoint icon."
(catch 'file-not-found
(if (re-search-forward gdb-source-file-regexp nil t)
(delete (cons bptno "File not found") gdb-location-alist)
;; FIXME: Why/how do we use (match-string 1) when the search failed?
(push (cons bptno (match-string 1)) gdb-location-alist)
(gdb-resync)
(unless (assoc bptno gdb-location-alist)
@ -4214,7 +4227,7 @@ If buffers already exist for any of these files, `gud-minor-mode'
is set in them."
(goto-char (point-min))
(while (re-search-forward gdb-source-file-regexp nil t)
(push (match-string 1) gdb-source-file-list))
(push (read (match-string 1)) gdb-source-file-list))
(dolist (buffer (buffer-list))
(with-current-buffer buffer
(when (member buffer-file-name gdb-source-file-list)
@ -4253,14 +4266,15 @@ overlay arrow in source buffer."
(setq gud-overlay-arrow-position (make-marker))
(set-marker gud-overlay-arrow-position position))))))))
(defvar gdb-prompt-name-regexp "value=\"\\(.*?\\)\"")
(defconst gdb-prompt-name-regexp
(concat "value=\\(" gdb--string-regexp "\\)"))
(defun gdb-get-prompt ()
"Find prompt for GDB session."
(goto-char (point-min))
(setq gdb-prompt-name nil)
(re-search-forward gdb-prompt-name-regexp nil t)
(setq gdb-prompt-name (match-string 1))
(setq gdb-prompt-name (read (match-string 1)))
;; Insert first prompt.
(setq gdb-filter-output (concat gdb-filter-output gdb-prompt-name)))
@ -4541,7 +4555,7 @@ Kills the gdb buffers, and resets variables and the source buffers."
buffers, if required."
(goto-char (point-min))
(if (re-search-forward gdb-source-file-regexp nil t)
(setq gdb-main-file (match-string 1)))
(setq gdb-main-file (read (match-string 1))))
(if gdb-many-windows
(gdb-setup-windows)
(gdb-get-buffer-create 'gdb-breakpoints-buffer)