| -*- Autoconf -*- |
| |
| # Common code for C-like languages (C, C++, Java, etc.) |
| |
| # Copyright (C) 2012-2013 Free Software Foundation, Inc. |
| |
| # This program 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. |
| # |
| # This program 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 this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| # b4_comment_(TEXT, OPEN, CONTINUE, END) |
| # -------------------------------------- |
| # Put TEXT in comment. Avoid trailing spaces: don't indent empty lines. |
| # Avoid adding indentation to the first line, as the indentation comes |
| # from OPEN. That's why we don't patsubst([$1], [^\(.\)], [ \1]). |
| # |
| # Prefix all the output lines with PREFIX. |
| m4_define([b4_comment_], |
| [$2[]m4_bpatsubst(m4_expand([[$1]]), [ |
| \(.\)], [ |
| $3\1])$4]) |
| |
| |
| # b4_comment(TEXT, [PREFIX]) |
| # -------------------------- |
| # Put TEXT in comment. Prefix all the output lines with PREFIX. |
| m4_define([b4_comment], |
| [b4_comment_([$1], [$2/* ], [$2 ], [ */])]) |
| |
| |
| |
| |
| # b4_dollar_dollar_(VALUE, FIELD, DEFAULT-FIELD) |
| # ---------------------------------------------- |
| # If FIELD (or DEFAULT-FIELD) is non-null, return "VALUE.FIELD", |
| # otherwise just VALUE. Be sure to pass "(VALUE)" is VALUE is a |
| # pointer. |
| m4_define([b4_dollar_dollar_], |
| [b4_symbol_value([$1], |
| m4_if([$2], [[]], |
| [[$3]], [[$2]]))]) |
| |
| # b4_dollar_pushdef(VALUE-POINTER, DEFAULT-FIELD, LOCATION) |
| # b4_dollar_popdef |
| # --------------------------------------------------------- |
| # Define b4_dollar_dollar for VALUE and DEFAULT-FIELD, |
| # and b4_at_dollar for LOCATION. |
| m4_define([b4_dollar_pushdef], |
| [m4_pushdef([b4_dollar_dollar], |
| [b4_dollar_dollar_([$1], m4_dquote($][1), [$2])])dnl |
| m4_pushdef([b4_at_dollar], [$3])dnl |
| ]) |
| m4_define([b4_dollar_popdef], |
| [m4_popdef([b4_at_dollar])dnl |
| m4_popdef([b4_dollar_dollar])dnl |
| ]) |
