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Prefer M4 to CPP.

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* data/lalr1.cc: Use b4_error_verbose_if instead of #if
	YYERROR_VERBOSE.
This commit is contained in:
Akim Demaille
2008-08-21 22:04:27 +02:00
parent a0ffc1751e
commit 422c18f48d
2 changed files with 16 additions and 15 deletions
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6
ChangeLog
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@@ -1,3 +1,9 @@
2008-11-11 Akim Demaille <demaille@gostai.com>
Prefer M4 to CPP.
* data/lalr1.cc: Use b4_error_verbose_if instead of #if
YYERROR_VERBOSE.
2008-11-11 Akim Demaille <demaille@gostai.com>
Support i18n of the parse error messages.

25
data/lalr1.cc
View File

@@ -583,12 +583,10 @@ m4_ifdef([b4_stype],
#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
/// For a symbol, its name in clear.
static const char* const yytname_[];
#endif
#endif]b4_error_verbose_if([
#if YYERROR_VERBOSE
/// Convert the symbol name \a n to a form suitable for a diagnostic.
virtual std::string yytnamerr_ (const char *n);
#endif
static std::string yytnamerr_ (const char *n);])[
#if YYDEBUG
/// For each rule, its source line number.
@@ -829,8 +827,7 @@ b4_percent_code_get[]dnl
#define YYERROR goto yyerrorlab
#define YYRECOVERING() (!!yyerrstatus_)
]b4_namespace_open[
#if YYERROR_VERBOSE
]b4_namespace_open[]b4_error_verbose_if([[
/* Return YYSTR after stripping away unnecessary quotes and
backslashes, so that it's suitable for yyerror. The heuristic is
@@ -868,8 +865,7 @@ b4_percent_code_get[]dnl
return yystr;
}
#endif
]])[
/// Build a parser object.
]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [
@@ -1384,12 +1380,11 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
// Generate an error message.
std::string
]b4_parser_class_name[::yysyntax_error_ (int yystate, int]dnl
b4_error_verbose_if([ yytoken])[)
]b4_parser_class_name[::yysyntax_error_ (]dnl
b4_error_verbose_if([int yystate, int yytoken],
[int, int])[)
{
std::string yyres;
YYUSE (yystate);
#if YYERROR_VERBOSE
std::string yyres;]b4_error_verbose_if([[
int yyn = yypact_[yystate];
if (yypact_ninf_ < yyn && yyn <= yylast_)
{
@@ -1446,8 +1441,8 @@ b4_error_verbose_if([ yytoken])[)
yyres += *yyp;
}
else
#endif
yyres = YY_("syntax error");
]])dnl
[ yyres = YY_("syntax error");
return yyres;
}