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author | Chong Yidong <cyd@stupidchicken.com> | 2009-09-28 01:28:41 +0000 |
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committer | Chong Yidong <cyd@stupidchicken.com> | 2009-09-28 01:28:41 +0000 |
commit | 666fd2cc6572fddd8a9a021b0359c651ac73a32d (patch) | |
tree | 147f72fea73e3d6325462ea1e6b1b1aded149be9 /lisp/cedet/cedet-global.el | |
parent | 748e162f10771f0482eaa29444a0d3e3ba738e98 (diff) | |
download | emacs-666fd2cc6572fddd8a9a021b0359c651ac73a32d.tar.gz emacs-666fd2cc6572fddd8a9a021b0359c651ac73a32d.tar.bz2 emacs-666fd2cc6572fddd8a9a021b0359c651ac73a32d.zip |
* cedet/cedet-cscope.el:
* cedet/cedet-files.el:
* cedet/cedet-global.el:
* cedet/cedet-idutils.el:
* cedet/data-debug.el:
* cedet/inversion.el:
* cedet/pulse.el: New files.
Diffstat (limited to 'lisp/cedet/cedet-global.el')
-rw-r--r-- | lisp/cedet/cedet-global.el | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/lisp/cedet/cedet-global.el b/lisp/cedet/cedet-global.el new file mode 100644 index 00000000000..35a963af577 --- /dev/null +++ b/lisp/cedet/cedet-global.el @@ -0,0 +1,162 @@ +;;; cedet-global.el --- GNU Global support for CEDET. + +;; Copyright (C) 2008, 2009 Free Software Foundation, Inc. + +;; Author: Eric M. Ludlam <eric@siege-engine.com> + +;; This file is part of GNU Emacs. + +;; GNU Emacs is free software: you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. + +;;; Commentary: +;; +;; Basic support for calling GNU Global, and testing version numbers. + +(declare-function inversion-check-version "inversion") + +(defvar cedet-global-min-version "5.0" + "Minimum version of GNU global required.") + +(defcustom cedet-global-command "global" + "Command name for the GNU Global executable." + :type 'string + :group 'cedet) + +;;; Code: +(defun cedet-gnu-global-search (searchtext texttype type scope) + "Perform a search with GNU Global, return the created buffer. +SEARCHTEXT is text to find. +TEXTTYPE is the type of text, such as 'regexp, 'string, 'tagname, +'tagregexp, or 'tagcompletions. +TYPE is the type of search, meaning that SEARCHTEXT is compared to +filename, tagname (tags table), references (uses of a tag) , or +symbol (uses of something not in the tag table.) +SCOPE is the scope of the search, such as 'project or 'subdirs." + (let ((flgs (cond ((eq type 'file) + "-a") + (t "-xa"))) + (scopeflgs (cond + ((eq scope 'project) + "" + ) + ((eq scope 'target) + "l"))) + (stflag (cond ((or (eq texttype 'tagname) + (eq texttype 'tagregexp)) + "") + ((eq texttype 'tagcompletions) + "c") + ((eq texttype 'regexp) + "g") + (t "r")))) + (cedet-gnu-global-call (list (concat flgs scopeflgs stflag) + searchtext)))) + +(defun cedet-gnu-global-call (flags) + "Call GNU Global with the list of FLAGS." + (let ((b (get-buffer-create "*CEDET Global*")) + (cd default-directory)) + (save-excursion + (set-buffer b) + (setq default-directory cd) + (erase-buffer)) + (apply 'call-process cedet-global-command + nil b nil + flags) + b)) + +(defun cedet-gnu-global-expand-filename (filename) + "Expand the FILENAME with GNU Global. +Return a fully qualified filename." + (interactive "sFile: ") + (let ((ans (save-excursion + (set-buffer (cedet-gnu-global-call (list "-Pa" filename))) + (goto-char (point-min)) + (if (looking-at "global: ") + (error "GNU Global not available") + (split-string (buffer-string) "\n" t))))) + (when (interactive-p) + (if ans + (if (= (length ans) 1) + (message "%s" (car ans)) + (message "%s + %d others" (car ans) + (length (cdr ans)))) + (error "No file found"))) + ans)) + +(defun cedet-gnu-global-show-root () + "Show the root of a GNU Global area under the current buffer." + (interactive) + (message "%s" (cedet-gnu-global-root))) + +(defun cedet-gnu-global-root (&optional dir) + "Return the root of any GNU Global scanned project. +If a default starting DIR is not specified, the current buffer's +`default-directory' is used." + (let ((default-directory (or dir default-directory))) + (save-excursion + (set-buffer (cedet-gnu-global-call (list "-pq"))) + (goto-char (point-min)) + (when (not (eobp)) + (file-name-as-directory + (buffer-substring (point) (point-at-eol))))))) + +(defun cedet-gnu-global-version-check (&optional noerror) + "Check the version of the installed GNU Global command. +If optional programatic argument NOERROR is non-nil, then +instead of throwing an error if Global isn't available, then +return nil." + (interactive) + (require 'inversion) + (let ((b (condition-case nil + (cedet-gnu-global-call (list "--version")) + (error nil))) + (rev nil)) + (if (not b) + (progn + (when (interactive-p) + (message "GNU Global not found.")) + nil) + (save-excursion + (set-buffer b) + (goto-char (point-min)) + (re-search-forward "GNU GLOBAL \\([0-9.]+\\)" nil t) + (setq rev (match-string 1)) + (if (inversion-check-version rev nil cedet-global-min-version) + (if noerror + nil + (error "Version of GNU Global is %s. Need at least %s" + rev cedet-global-min-version)) + ;; Else, return TRUE, as in good enough. + (when (interactive-p) + (message "GNU Global %s - Good enough for CEDET." rev)) + t))))) + +(defun cedet-gnu-global-scan-hits (buffer) + "Scan all the hits from the GNU Global output BUFFER." + (let ((hits nil) + (r1 "^\\([^ ]+\\) +\\([0-9]+\\) \\([^ ]+\\) ")) + (save-excursion + (set-buffer buffer) + (goto-char (point-min)) + (while (re-search-forward r1 nil t) + (setq hits (cons (cons (string-to-number (match-string 2)) + (match-string 3)) + hits))) + ;; Return the results + (nreverse hits)))) + +(provide 'cedet-global) + +;;; cedet-global.el ends here |