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c-like.m4
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-*- Autoconf -*- # Common code for C-like languages (C, C++, Java, etc.) # Copyright (C) 2012-2015, 2018-2021 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 <https://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]). # Turn "*/" in TEXT into "* /" so that we don't unexpectedly close # the comments before its end. # # Prefix all the output lines with PREFIX. m4_define([_b4_comment], [$2[]b4_gsub(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, SYMBOL-NUM, FIELD, DEFAULT-FIELD) # ---------------------------------------------------------- # If FIELD (or DEFAULT-FIELD) is non-null, return "VALUE.FIELD", # otherwise just VALUE. Be sure to pass "(VALUE)" if VALUE is a # pointer. m4_define([_b4_dollar_dollar], [b4_symbol_value([$1], [$2], m4_if([$3], [[]], [[$4]], [[$3]]))]) # b4_dollar_pushdef(VALUE-POINTER, SYMBOL-NUM, [TYPE_TAG], LOCATION) # b4_dollar_popdef # ------------------------------------------------------------------ # Define b4_dollar_dollar for VALUE-POINTER and DEFAULT-FIELD, # and b4_at_dollar for LOCATION. m4_define([b4_dollar_pushdef], [m4_pushdef([b4_dollar_dollar], [_b4_dollar_dollar([$1], [$2], m4_dquote($][1), [$3])])dnl m4_pushdef([b4_at_dollar], [$4])dnl ]) m4_define([b4_dollar_popdef], [m4_popdef([b4_at_dollar])dnl m4_popdef([b4_dollar_dollar])dnl ])