projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| cd735a8c AD |
1 | -*- Autoconf -*- |
| 2 | ||
| 3 | # Common code for C-like languages (C, C++, Java, etc.) | |
| 4 | ||
| 7d6bad19 | 5 | # Copyright (C) 2012-2013 Free Software Foundation, Inc. |
| cd735a8c AD |
6 | |
| 7 | # This program is free software: you can redistribute it and/or modify | |
| 8 | # it under the terms of the GNU General Public License as published by | |
| 9 | # the Free Software Foundation, either version 3 of the License, or | |
| 10 | # (at your option) any later version. | |
| 11 | # | |
| 12 | # This program is distributed in the hope that it will be useful, | |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | # GNU General Public License for more details. | |
| 16 | # | |
| 17 | # You should have received a copy of the GNU General Public License | |
| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | ||
| 6f0a6f27 AD |
20 | # b4_comment_(TEXT, OPEN, CONTINUE, END) |
| 21 | # -------------------------------------- | |
| 22 | # Put TEXT in comment. Avoid trailing spaces: don't indent empty lines. | |
| 23 | # Avoid adding indentation to the first line, as the indentation comes | |
| 24 | # from OPEN. That's why we don't patsubst([$1], [^\(.\)], [ \1]). | |
| 25 | # | |
| 26 | # Prefix all the output lines with PREFIX. | |
| 27 | m4_define([b4_comment_], | |
| 28 | [$2[]m4_bpatsubst(m4_expand([[$1]]), [ | |
| 29 | \(.\)], [ | |
| 30 | $3\1])$4]) | |
| 31 | ||
| 32 | ||
| 33 | # b4_comment(TEXT, [PREFIX]) | |
| 34 | # -------------------------- | |
| 35 | # Put TEXT in comment. Prefix all the output lines with PREFIX. | |
| 36 | m4_define([b4_comment], | |
| 37 | [b4_comment_([$1], [$2/* ], [$2 ], [ */])]) | |
| 38 | ||
| 39 | ||
| 40 | ||
| 41 | ||
| cd735a8c AD |
42 | # b4_dollar_dollar_(VALUE, FIELD, DEFAULT-FIELD) |
| 43 | # ---------------------------------------------- | |
| 44 | # If FIELD (or DEFAULT-FIELD) is non-null, return "VALUE.FIELD", | |
| 45 | # otherwise just VALUE. Be sure to pass "(VALUE)" is VALUE is a | |
| 46 | # pointer. | |
| 47 | m4_define([b4_dollar_dollar_], | |
| 4323e0da AD |
48 | [b4_symbol_value([$1], |
| 49 | m4_if([$2], [[]], | |
| 50 | [[$3]], [[$2]]))]) | |
| cd735a8c AD |
51 | |
| 52 | # b4_dollar_pushdef(VALUE-POINTER, DEFAULT-FIELD, LOCATION) | |
| 53 | # b4_dollar_popdef | |
| 54 | # --------------------------------------------------------- | |
| 55 | # Define b4_dollar_dollar for VALUE and DEFAULT-FIELD, | |
| 56 | # and b4_at_dollar for LOCATION. | |
| 57 | m4_define([b4_dollar_pushdef], | |
| 58 | [m4_pushdef([b4_dollar_dollar], | |
| 59 | [b4_dollar_dollar_([$1], m4_dquote($][1), [$2])])dnl | |
| 60 | m4_pushdef([b4_at_dollar], [$3])dnl | |
| 61 | ]) | |
| 62 | m4_define([b4_dollar_popdef], | |
| 63 | [m4_popdef([b4_at_dollar])dnl | |
| 64 | m4_popdef([b4_dollar_dollar])dnl | |
| 65 | ]) |