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variables: accept dashes.

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* data/bison.m4 (b4_percent_define_if_define_): Also map dashes to
	underscores.
	* src/scan-gram.l ({id}): Also accept dashes after the initial
	letter.
	({directive}): Use {id}.
	* src/parse-gram.y: Comment and formatting changes.
	* doc/bison.texinfo (Symbols): Adjust the lexical definitions of
	symbols.
	* src/complain.h, src/complain.c (yacc_at): New.
	* src/symtab.c (symbol_new): Use yacc_at to report inappropriate
	symbol names.
	* src/output.c (token_definitions_output): Do not #define token
	names with dashes.
This commit is contained in:
Akim Demaille
2009-04-20 12:24:23 +02:00
parent 184e317956
commit 4f646c3794
9 changed files with 75 additions and 18 deletions
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5
data/bison.m4
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@@ -668,9 +668,10 @@ m4_define([b4_percent_define_default],
# b4_percent_define_if_define(VARIABLE)
# -------------------------------------
# Define b4_VARIABLE_if that executes its $1 or $2 depending whether
# VARIABLE was %defined. The character `.' in VARIABLE is mapped to `_'.
# VARIABLE was %defined. The characters `.' and `-' in VARIABLE are mapped
# to `_'.
m4_define([b4_percent_define_if_define_],
[m4_define(m4_bpatsubst([b4_$1_if], [[.]], [_]),
[m4_define(m4_bpatsubst([b4_$1_if], [[-.]], [_]),
[b4_percent_define_flag_if([$1], [$2], [$3])])])
m4_define([b4_percent_define_if_define],
[b4_percent_define_default([[$1]], [[false]])