lisp/cedet/semantic/db-ref.el: Require semantic/db.
[bpt/emacs.git] / lisp / cedet / semantic / symref / cscope.el
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1;;; semantic/symref/cscope.el --- Semantic-symref support via cscope.
2
3;;; Copyright (C) 2009 Free Software Foundation, Inc.
4
5;; Author: Eric M. Ludlam <eric@siege-engine.com>
6
7;; This file is part of GNU Emacs.
8
9;; GNU Emacs is free software: you can redistribute it and/or modify
10;; it under the terms of the GNU General Public License as published by
11;; the Free Software Foundation, either version 3 of the License, or
12;; (at your option) any later version.
13
14;; GNU Emacs is distributed in the hope that it will be useful,
15;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17;; GNU General Public License for more details.
18
19;; You should have received a copy of the GNU General Public License
20;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
21
22;;; Commentary:
23;;
24;; Semantic symref support via cscope.
25
26(require 'cedet-cscope)
27(require 'semantic/symref)
28
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29(defvar ede-minor-mode)
30(declare-function ede-toplevel "ede/files")
31(declare-function ede-project-root-directory "ede/files")
32
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33;;; Code:
34(defclass semantic-symref-tool-cscope (semantic-symref-tool-baseclass)
35 (
36 )
37 "A symref tool implementation using CScope.
38The CScope command can be used to generate lists of tags in a way
39similar to that of `grep'. This tool will parse the output to generate
40the hit list.
41
42See the function `cedet-cscope-search' for more details.")
43
44(defmethod semantic-symref-perform-search ((tool semantic-symref-tool-cscope))
45 "Perform a search with GNU Global."
46 (let* ((rootproj (when (and (featurep 'ede) ede-minor-mode)
47 (ede-toplevel)))
48 (default-directory (if rootproj
49 (ede-project-root-directory rootproj)
50 default-directory))
51 ;; CScope has to be run from the project root where
52 ;; cscope.out is.
53 (b (cedet-cscope-search (oref tool :searchfor)
54 (oref tool :searchtype)
55 (oref tool :resulttype)
56 (oref tool :searchscope)
57 ))
58 )
59 (semantic-symref-parse-tool-output tool b)
60 ))
61
62(defmethod semantic-symref-parse-tool-output-one-line ((tool semantic-symref-tool-cscope))
63 "Parse one line of grep output, and return it as a match list.
64Moves cursor to end of the match."
65 (cond ((eq (oref tool :resulttype) 'file)
66 ;; Search for files
67 (when (re-search-forward "^\\([^\n]+\\)$" nil t)
68 (match-string 1)))
69 ((eq (oref tool :searchtype) 'tagcompletions)
70 ;; Search for files
71 (when (re-search-forward "^[^ ]+ [^ ]+ [^ ]+ \\(.*\\)$" nil t)
72 (let ((subtxt (match-string 1))
73 (searchtxt (oref tool :searchfor)))
74 (if (string-match (concat "\\<" searchtxt "\\(\\w\\|\\s_\\)*\\>")
75 subtxt)
76 (match-string 0 subtxt)
77 ;; We have to return something at this point.
78 subtxt)))
79 )
80 (t
81 (when (re-search-forward "^\\([^ ]+\\) [^ ]+ \\([0-9]+\\) " nil t)
82 (cons (string-to-number (match-string 2))
83 (expand-file-name (match-string 1)))
84 ))))
85
86(provide 'semantic/symref/cscope)
87
88;;; semantic/symref/cscope.el ends here