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* data/glr.c (YYRECOVERING): Define to be a function-like macro

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with no arguments, not as an object-like macro.  This is for
compatibility with data/yacc.c.  Problem reported by John P. Hartmann in
<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
* doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
Document this.
This commit is contained in:
Paul Eggert
2006-05-30 23:45:04 +00:00
parent 2c08afa5dd
commit 0210398466
3 changed files with 20 additions and 9 deletions
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18
doc/bison.texinfo
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@@ -4892,8 +4892,9 @@ the @samp{YYERROR;} statement. @xref{Error Recovery}.
@end deffn
@deffn {Macro} YYRECOVERING
This macro stands for an expression that has the value 1 when the parser
is recovering from a syntax error, and 0 the rest of the time.
@findex YYRECOVERING
The expression @code{YYRECOVERING ()} yields 1 when the parser
is recovering from a syntax error, and 0 otherwise.
@xref{Error Recovery}.
@end deffn
@@ -6003,10 +6004,10 @@ probably correct. The previous look-ahead token ought to be discarded
with @samp{yyclearin;}.
@vindex YYRECOVERING
The macro @code{YYRECOVERING} stands for an expression that has the
value 1 when the parser is recovering from a syntax error, and 0 the
rest of the time. A value of 1 indicates that error messages are
currently suppressed for new syntax errors.
The expression @code{YYRECOVERING ()} yields 1 when the parser
is recovering from a syntax error, and 0 otherwise.
Syntax error diagnostics are suppressed while recovering from a syntax
error.
@node Context Dependency
@chapter Handling Context Dependencies
@@ -8469,8 +8470,9 @@ Conventions for Pure Parsers}.
@end deffn
@deffn {Macro} YYRECOVERING
Macro whose value indicates whether the parser is recovering from a
syntax error. @xref{Action Features, ,Special Features for Use in Actions}.
The expression @code{YYRECOVERING ()} yields 1 when the parser
is recovering from a syntax error, and 0 otherwise.
@xref{Action Features, ,Special Features for Use in Actions}.
@end deffn
@deffn {Macro} YYSTACK_USE_ALLOCA