blob: 8541010ad2999546b4f4cbf4f7e2f3f2b51c15fd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
;;; makefile-edit.el --- Makefile editing/scanning commands.
;; Copyright (C) 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:
;;
;; Utilities for editing a Makefile for EDE Makefile management commands.
;;
;; Derived from project-am.el.
;;
;; Makefile editing and scanning commands
;;
;; Formatting of a makefile
;;
;; 1) Creating an automakefile, stick in a top level comment about
;; being created by emacs
;; 2) Leave order of variable contents alone, except for SOURCE
;; SOURCE always keep in the order of .c, .h, the other stuff.
;;; Things to do
;; makefile-fill-paragraph -- refill a macro w/ backslashes
;; makefile-insert-macro -- insert "foo = "
;;; Code:
(defun makefile-beginning-of-command ()
"Move to the beginning of the current command."
(interactive)
(if (save-excursion
(forward-line -1)
(makefile-line-continued-p))
(forward-line -1))
(beginning-of-line)
(if (not (makefile-line-continued-p))
nil
(while (and (makefile-line-continued-p)
(not (bobp)))
(forward-line -1))
(forward-line 1)))
(defun makefile-end-of-command ()
"Move to the end of the current command."
(interactive)
(end-of-line)
(while (and (makefile-line-continued-p)
(not (eobp)))
(forward-line 1)
(end-of-line)))
(defun makefile-line-continued-p ()
"Return non-nil if the current line ends in continuation."
(save-excursion
(end-of-line)
(= (preceding-char) ?\\)))
;;; Programatic editing of a Makefile
;;
(defun makefile-move-to-macro (macro &optional next)
"Move to the definition of MACRO. Return t if found.
If NEXT is non-nil, move to the next occurrence of MACRO."
(let ((oldpt (point)))
(when (not next) (goto-char (point-min)))
(if (re-search-forward (concat "^\\s-*" macro "\\s-*[+:?]?=") nil t)
t
(goto-char oldpt)
nil)))
(defun makefile-navigate-macro (stop-before)
"In a list of files, move forward until STOP-BEFORE is reached.
STOP-BEFORE is a regular expression matching a file name."
(save-excursion
(makefile-beginning-of-command)
(let ((e (save-excursion
(makefile-end-of-command)
(point))))
(if (re-search-forward stop-before nil t)
(goto-char (match-beginning 0))
(goto-char e)))))
(defun makefile-macro-file-list (macro)
"Return a list of all files in MACRO."
(save-excursion
(goto-char (point-min))
(let ((lst nil))
(while (makefile-move-to-macro macro t)
(let ((e (save-excursion
(makefile-end-of-command)
(point))))
(while (re-search-forward "\\s-**\\([-a-zA-Z0-9./_@$%(){}]+\\)\\s-*" e t)
(let ((var nil)(varexp nil)
(match (buffer-substring-no-properties
(match-beginning 1)
(match-end 1))))
(if (not (setq var (makefile-extract-varname-from-text match)))
(setq lst (cons match lst))
(setq varexp (makefile-macro-file-list var))
(dolist (V varexp)
(setq lst (cons V lst))))))))
(nreverse lst))))
(defun makefile-extract-varname-from-text (text)
"Extract the variable name from TEXT if it is a variable reference.
Return nil if it isn't a variable."
(save-match-data
(when (string-match "\\$\\s(\\([A-Za-z0-9_]+\\)\\s)" text)
(match-string 1 text))))
(provide 'ede/makefile-edit)
;; arch-tag: aba26b5f-4306-40d9-b63c-84a9590ac986
;;; ede/makefile-edit.el ends here
|
