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| author | Paul Eggert <eggert@cs.ucla.edu> | 2006-09-15 15:56:26 +0000 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2006-09-15 15:56:26 +0000 |
| commit | 31c10e38dbf21a29af558c6f5144acd22dbc956e (patch) | |
| tree | d9509b836ffef19ffc46216d124eb012c43e86d3 /data/c.m4 | |
| parent | 21fe08cadcb84fddd5038ac6857a904dbe1ad885 (diff) | |
| download | bison-31c10e38dbf21a29af558c6f5144acd22dbc956e.tar.gz | |
* data/Makefile.am (dist_pkgdata_DATA): Add push.c.
* data/c.m4 (YYPUSH): New.
(b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
* src/getargs.c (push_parser): New var.
* src/getargs.h (push_parser): New declaration.
* src/output.c (prepare): Add macro insertion of `push_flag'.
* src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
(prologue_declaration): Parse %push-parser.
* src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
* tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
list of removed lines from the traces observed.
(AT_CHECK_CALC_LALR): Added push parser tests.
Diffstat (limited to 'data/c.m4')
| -rw-r--r-- | data/c.m4 | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -76,6 +76,9 @@ m4_define([b4_identification], /* Pure parsers. */ [#]define YYPURE b4_pure_flag +/* Push parsers. */ +[#]define YYPUSH b4_push_flag + /* Using locations. */ [#]define YYLSP_NEEDED b4_locations_flag ]) @@ -225,6 +228,15 @@ b4_define_flag_if([pure]) # Whether the interface is pure. b4_define_flag_if([yacc]) # Whether POSIX Yacc is emulated. +# b4_push_if(IF-TRUE, IF-FALSE) +# ----------------------------- +# Expand IF-TRUE, if %push-parser, IF-FALSE otherwise. +m4_define([b4_push_if], +[m4_if(b4_push_flag, [1], + [$1], + [$2])]) + + ## ------------------------- ## ## Assigning token numbers. ## |