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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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6
src/scan-gram.l
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@@ -99,8 +99,8 @@ static void unexpected_newline (boundary, char const *);
%x SC_STRING SC_CHARACTER
letter [.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_]
id {letter}({letter}|[0-9])*
directive %{letter}({letter}|[0-9]|-)*
id {letter}({letter}|[0-9]|-)*
directive %{id}
int [0-9]+
/* POSIX says that a tag must be both an id and a C union member, but
@@ -411,7 +411,7 @@ splice (\\[ \f\t\v]*\n)*
unexpected_eof (token_start, "'");
STRING_FINISH;
loc->start = token_start;
if (strlen(last_string) > 1)
if (strlen (last_string) > 1)
val->character = last_string[1];
else
val->character = last_string[0];