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Support a file name argument to %defines. Deprecate `=' in

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%file-prefix, %name-prefix, and %output.  Discussed at
<http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
* NEWS (2.3a+): Mention.
* doc/bison.texinfo (Decl Summary, Bison Symbols): Add entry for new
form of %defines, and remove `=' from entries for %file-prefix,
%name-prefix, and %output.
* src/parse-gram.y (prologue_declaration): Implement.
* tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
all but one occurrence of %name-prefix.
* tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
* tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
occurrence of each of %file-prefix and %output.  Add check for %defines
with argument.
* tests/reduce.at (Useless Terminals, Useless Nonterminals,
Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
Remove the `=' from %output.
This commit is contained in:
Joel E. Denny
2006-12-02 01:52:16 +00:00
parent 287b314eef
commit 02975b9aad
10 changed files with 535 additions and 445 deletions
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25
doc/bison.texinfo
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@@ -4598,12 +4598,16 @@ header also contains their code.
@xref{Table of Symbols, ,%requires}.
@end deffn
@deffn {Directive} %defines @var{defines-file}
Same as above, but save in the file @var{defines-file}.
@end deffn
@deffn {Directive} %destructor
Specify how the parser should reclaim the memory associated to
discarded symbols. @xref{Destructor Decl, , Freeing Discarded Symbols}.
@end deffn
@deffn {Directive} %file-prefix="@var{prefix}"
@deffn {Directive} %file-prefix "@var{prefix}"
Specify a prefix to use for all Bison output file names. The names are
chosen as if the input file were named @file{@var{prefix}.y}.
@end deffn
@@ -4616,14 +4620,14 @@ grammar does not use it, using @samp{%locations} allows for more
accurate syntax error messages.
@end deffn
@deffn {Directive} %name-prefix="@var{prefix}"
@deffn {Directive} %name-prefix "@var{prefix}"
Rename the external symbols used in the parser so that they start with
@var{prefix} instead of @samp{yy}. The precise list of symbols renamed
in C parsers
is @code{yyparse}, @code{yylex}, @code{yyerror}, @code{yynerrs},
@code{yylval}, @code{yychar}, @code{yydebug}, and
(if locations are used) @code{yylloc}. For example, if you use
@samp{%name-prefix="c_"}, the names become @code{c_parse}, @code{c_lex},
@samp{%name-prefix "c_"}, the names become @code{c_parse}, @code{c_lex},
and so on. In C++ parsers, it is only the surrounding namespace which is
named @var{prefix} instead of @samp{yy}.
@xref{Multiple Parsers, ,Multiple Parsers in the Same Program}.
@@ -4656,7 +4660,7 @@ associate errors with the parser file, treating it an independent source
file in its own right.
@end deffn
@deffn {Directive} %output="@var{file}"
@deffn {Directive} %output "@var{file}"
Specify @var{file} for the parser file.
@end deffn
@@ -7265,7 +7269,7 @@ Pretend that @code{%locations} was specified. @xref{Decl Summary}.
@item -p @var{prefix}
@itemx --name-prefix=@var{prefix}
Pretend that @code{%name-prefix="@var{prefix}"} was specified.
Pretend that @code{%name-prefix "@var{prefix}"} was specified.
@xref{Decl Summary}.
@item -l
@@ -8653,6 +8657,11 @@ Bison declaration to create a header file meant for the scanner.
@xref{Decl Summary}.
@end deffn
@deffn {Directive} %defines @var{defines-file}
Same as above, but save in the file @var{defines-file}.
@xref{Decl Summary}.
@end deffn
@deffn {Directive} %destructor
Specify how the parser should reclaim the memory associated to
discarded symbols. @xref{Destructor Decl, , Freeing Discarded Symbols}.
@@ -8685,7 +8694,7 @@ Bison declaration to request verbose, specific error message strings
when @code{yyerror} is called.
@end deffn
@deffn {Directive} %file-prefix="@var{prefix}"
@deffn {Directive} %file-prefix "@var{prefix}"
Bison declaration to set the prefix of the output files. @xref{Decl
Summary}.
@end deffn
@@ -8717,7 +8726,7 @@ function is applied to the two semantic values to get a single result.
@xref{GLR Parsers, ,Writing @acronym{GLR} Parsers}.
@end deffn
@deffn {Directive} %name-prefix="@var{prefix}"
@deffn {Directive} %name-prefix "@var{prefix}"
Bison declaration to rename the external symbols. @xref{Decl Summary}.
@end deffn
@@ -8739,7 +8748,7 @@ Bison declaration to assign nonassociativity to token(s).
@xref{Precedence Decl, ,Operator Precedence}.
@end deffn
@deffn {Directive} %output="@var{file}"
@deffn {Directive} %output "@var{file}"
Bison declaration to set the name of the parser file. @xref{Decl
Summary}.
@end deffn