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* doc/bison.texinfo (Table of Symbols): Sort.

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Akim Demaille
2004-09-24 11:55:40 +00:00
parent 0092f063af
commit dd8d90221a
2 changed files with 194 additions and 194 deletions
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@@ -1,3 +1,7 @@
2004-09-24 Akim Demaille <akim@epita.fr>
* doc/bison.texinfo (Table of Symbols): Sort.
2004-09-21 Akim Demaille <akim@epita.fr>
* data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove

384
doc/bison.texinfo
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@@ -6969,180 +6969,44 @@ In an action, the semantic value of the @var{n}-th symbol of the
right-hand side of the rule. @xref{Actions}.
@end deffn
@deffn {Delimiter} %%
Delimiter used to separate the grammar rule section from the
Bison declarations section or the epilogue.
@xref{Grammar Layout, ,The Overall Layout of a Bison Grammar}.
@end deffn
@c Don't insert spaces, or check the DVI output.
@deffn {Delimiter} %@{@var{code}%@}
All code listed between @samp{%@{} and @samp{%@}} is copied directly to
the output file uninterpreted. Such code forms the prologue of the input
file. @xref{Grammar Outline, ,Outline of a Bison
Grammar}.
@end deffn
@deffn {Construct} /*@dots{}*/
Comment delimiters, as in C.
@end deffn
@deffn {Delimiter} :
Separates a rule's result from its components. @xref{Rules, ,Syntax of
Grammar Rules}.
@end deffn
@deffn {Delimiter} ;
Terminates a rule. @xref{Rules, ,Syntax of Grammar Rules}.
@end deffn
@deffn {Delimiter} |
Separates alternate rules for the same result nonterminal.
@xref{Rules, ,Syntax of Grammar Rules}.
@end deffn
@deffn {Symbol} $accept
The predefined nonterminal whose only rule is @samp{$accept: @var{start}
$end}, where @var{start} is the start symbol. @xref{Start Decl, , The
Start-Symbol}. It cannot be used in the grammar.
@end deffn
@deffn {Symbol} $end
The predefined token marking the end of the token stream. It cannot be
used in the grammar.
@end deffn
@deffn {Symbol} $undefined
The predefined token onto which all undefined values returned by
@code{yylex} are mapped. It cannot be used in the grammar, rather, use
@code{error}.
@end deffn
@deffn {Symbol} error
A token name reserved for error recovery. This token may be used in
grammar rules so as to allow the Bison parser to recognize an error in
the grammar without halting the process. In effect, a sentence
containing an error may be recognized as valid. On a syntax error, the
token @code{error} becomes the current look-ahead token. Actions
corresponding to @code{error} are then executed, and the look-ahead
token is reset to the token that originally caused the violation.
@xref{Error Recovery}.
@end deffn
@deffn {Macro} YYABORT
Macro to pretend that an unrecoverable syntax error has occurred, by
making @code{yyparse} return 1 immediately. The error reporting
function @code{yyerror} is not called. @xref{Parser Function, ,The
Parser Function @code{yyparse}}.
@end deffn
@deffn {Macro} YYACCEPT
Macro to pretend that a complete utterance of the language has been
read, by making @code{yyparse} return 0 immediately.
@xref{Parser Function, ,The Parser Function @code{yyparse}}.
@end deffn
@deffn {Macro} YYBACKUP
Macro to discard a value from the parser stack and fake a look-ahead
token. @xref{Action Features, ,Special Features for Use in Actions}.
@end deffn
@deffn {Macro} YYDEBUG
Macro to define to equip the parser with tracing code. @xref{Tracing,
,Tracing Your Parser}.
@end deffn
@deffn {Macro} YYERROR
Macro to pretend that a syntax error has just been detected: call
@code{yyerror} and then perform normal error recovery if possible
(@pxref{Error Recovery}), or (if recovery is impossible) make
@code{yyparse} return 1. @xref{Error Recovery}.
@end deffn
@deffn {Macro} YYERROR_VERBOSE
An obsolete macro that you define with @code{#define} in the prologue
to request verbose, specific error message strings
when @code{yyerror} is called. It doesn't matter what definition you
use for @code{YYERROR_VERBOSE}, just whether you define it. Using
@code{%error-verbose} is preferred.
@end deffn
@deffn {Macro} YYINITDEPTH
Macro for specifying the initial size of the parser stack.
@xref{Stack Overflow}.
@end deffn
@deffn {Macro} YYLEX_PARAM
An obsolete macro for specifying an extra argument (or list of extra
arguments) for @code{yyparse} to pass to @code{yylex}. he use of this
macro is deprecated, and is supported only for Yacc like parsers.
@xref{Pure Calling,, Calling Conventions for Pure Parsers}.
@end deffn
@deffn {Type} YYLTYPE
Data type of @code{yylloc}; by default, a structure with four
members. @xref{Location Type, , Data Types of Locations}.
@end deffn
@deffn {Macro} YYMAXDEPTH
Macro for specifying the maximum size of the parser stack. @xref{Stack
Overflow}.
@end deffn
@deffn {Macro} YYPARSE_PARAM
An obsolete macro for specifying the name of a parameter that
@code{yyparse} should accept. The use of this macro is deprecated, and
is supported only for Yacc like parsers. @xref{Pure Calling,, Calling
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}.
@end deffn
@deffn {Macro} YYSTACK_USE_ALLOCA
Macro used to control the use of @code{alloca}. If defined to @samp{0},
the parser will not use @code{alloca} but @code{malloc} when trying to
grow its internal stacks. Do @emph{not} define @code{YYSTACK_USE_ALLOCA}
to anything else.
@end deffn
@deffn {Type} YYSTYPE
Data type of semantic values; @code{int} by default.
@xref{Value Type, ,Data Types of Semantic Values}.
@end deffn
@deffn {Variable} yychar
External integer variable that contains the integer value of the current
look-ahead token. (In a pure parser, it is a local variable within
@code{yyparse}.) Error-recovery rule actions may examine this variable.
@xref{Action Features, ,Special Features for Use in Actions}.
@end deffn
@deffn {Variable} yyclearin
Macro used in error-recovery rule actions. It clears the previous
look-ahead token. @xref{Error Recovery}.
@end deffn
@deffn {Variable} yydebug
External integer variable set to zero by default. If @code{yydebug}
is given a nonzero value, the parser will output information on input
symbols and parser action. @xref{Tracing, ,Tracing Your Parser}.
@end deffn
@deffn {Macro} yyerrok
Macro to cause parser to recover immediately to its normal mode
after a syntax error. @xref{Error Recovery}.
@end deffn
@deffn {Function} yyerror
User-supplied function to be called by @code{yyparse} on error.
@xref{Error Reporting, ,The Error
Reporting Function @code{yyerror}}.
@end deffn
@deffn {Function} yylex
User-supplied lexical analyzer function, called with no arguments to get
the next token. @xref{Lexical, ,The Lexical Analyzer Function
@code{yylex}}.
@end deffn
@deffn {Variable} yylval
External variable in which @code{yylex} should place the semantic
value associated with a token. (In a pure parser, it is a local
variable within @code{yyparse}, and its address is passed to
@code{yylex}.) @xref{Token Values, ,Semantic Values of Tokens}.
@end deffn
@deffn {Variable} yylloc
External variable in which @code{yylex} should place the line and column
numbers associated with a token. (In a pure parser, it is a local
variable within @code{yyparse}, and its address is passed to
@code{yylex}.) You can ignore this variable if you don't use the
@samp{@@} feature in the grammar actions. @xref{Token Locations,
,Textual Locations of Tokens}.
@end deffn
@deffn {Variable} yynerrs
Global variable which Bison increments each time there is a syntax error.
(In a pure parser, it is a local variable within @code{yyparse}.)
@xref{Error Reporting, ,The Error Reporting Function @code{yyerror}}.
@end deffn
@deffn {Function} yyparse
The parser function produced by Bison; call this function to start
parsing. @xref{Parser Function, ,The Parser Function @code{yyparse}}.
@end deffn
@deffn {Directive} %debug
Equip the parser for debugging. @xref{Decl Summary}.
@end deffn
@@ -7171,8 +7035,20 @@ time to resolve reduce/reduce conflicts. @xref{GLR Parsers, ,Writing
@acronym{GLR} Parsers}.
@end deffn
@deffn {Directive} %initial-action
Run user code before parsing. @xref{Initial Action Decl, , Performing Actions before Parsing}.
@deffn {Symbol} $end
The predefined token marking the end of the token stream. It cannot be
used in the grammar.
@end deffn
@deffn {Symbol} error
A token name reserved for error recovery. This token may be used in
grammar rules so as to allow the Bison parser to recognize an error in
the grammar without halting the process. In effect, a sentence
containing an error may be recognized as valid. On a syntax error, the
token @code{error} becomes the current look-ahead token. Actions
corresponding to @code{error} are then executed, and the look-ahead
token is reset to the token that originally caused the violation.
@xref{Error Recovery}.
@end deffn
@deffn {Directive} %error-verbose
@@ -7190,6 +7066,10 @@ Bison declaration to produce a @acronym{GLR} parser. @xref{GLR
Parsers, ,Writing @acronym{GLR} Parsers}.
@end deffn
@deffn {Directive} %initial-action
Run user code before parsing. @xref{Initial Action Decl, , Performing Actions before Parsing}.
@end deffn
@deffn {Directive} %left
Bison declaration to assign left associativity to token(s).
@xref{Precedence Decl, ,Operator Precedence}.
@@ -7276,45 +7156,161 @@ Bison declaration to declare nonterminals. @xref{Type Decl,
,Nonterminal Symbols}.
@end deffn
@deffn {Symbol} $undefined
The predefined token onto which all undefined values returned by
@code{yylex} are mapped. It cannot be used in the grammar, rather, use
@code{error}.
@end deffn
@deffn {Directive} %union
Bison declaration to specify several possible data types for semantic
values. @xref{Union Decl, ,The Collection of Value Types}.
@end deffn
@sp 1
These are the punctuation and delimiters used in Bison input:
@deffn {Delimiter} %%
Delimiter used to separate the grammar rule section from the
Bison declarations section or the epilogue.
@xref{Grammar Layout, ,The Overall Layout of a Bison Grammar}.
@deffn {Macro} YYABORT
Macro to pretend that an unrecoverable syntax error has occurred, by
making @code{yyparse} return 1 immediately. The error reporting
function @code{yyerror} is not called. @xref{Parser Function, ,The
Parser Function @code{yyparse}}.
@end deffn
@c Don't insert spaces, or check the DVI output.
@deffn {Delimiter} %@{@var{code}%@}
All code listed between @samp{%@{} and @samp{%@}} is copied directly to
the output file uninterpreted. Such code forms the prologue of the input
file. @xref{Grammar Outline, ,Outline of a Bison
Grammar}.
@deffn {Macro} YYACCEPT
Macro to pretend that a complete utterance of the language has been
read, by making @code{yyparse} return 0 immediately.
@xref{Parser Function, ,The Parser Function @code{yyparse}}.
@end deffn
@deffn {Construct} /*@dots{}*/
Comment delimiters, as in C.
@deffn {Macro} YYBACKUP
Macro to discard a value from the parser stack and fake a look-ahead
token. @xref{Action Features, ,Special Features for Use in Actions}.
@end deffn
@deffn {Delimiter} :
Separates a rule's result from its components. @xref{Rules, ,Syntax of
Grammar Rules}.
@deffn {Variable} yychar
External integer variable that contains the integer value of the current
look-ahead token. (In a pure parser, it is a local variable within
@code{yyparse}.) Error-recovery rule actions may examine this variable.
@xref{Action Features, ,Special Features for Use in Actions}.
@end deffn
@deffn {Delimiter} ;
Terminates a rule. @xref{Rules, ,Syntax of Grammar Rules}.
@deffn {Variable} yyclearin
Macro used in error-recovery rule actions. It clears the previous
look-ahead token. @xref{Error Recovery}.
@end deffn
@deffn {Delimiter} |
Separates alternate rules for the same result nonterminal.
@xref{Rules, ,Syntax of Grammar Rules}.
@deffn {Macro} YYDEBUG
Macro to define to equip the parser with tracing code. @xref{Tracing,
,Tracing Your Parser}.
@end deffn
@deffn {Variable} yydebug
External integer variable set to zero by default. If @code{yydebug}
is given a nonzero value, the parser will output information on input
symbols and parser action. @xref{Tracing, ,Tracing Your Parser}.
@end deffn
@deffn {Macro} yyerrok
Macro to cause parser to recover immediately to its normal mode
after a syntax error. @xref{Error Recovery}.
@end deffn
@deffn {Macro} YYERROR
Macro to pretend that a syntax error has just been detected: call
@code{yyerror} and then perform normal error recovery if possible
(@pxref{Error Recovery}), or (if recovery is impossible) make
@code{yyparse} return 1. @xref{Error Recovery}.
@end deffn
@deffn {Function} yyerror
User-supplied function to be called by @code{yyparse} on error.
@xref{Error Reporting, ,The Error
Reporting Function @code{yyerror}}.
@end deffn
@deffn {Macro} YYERROR_VERBOSE
An obsolete macro that you define with @code{#define} in the prologue
to request verbose, specific error message strings
when @code{yyerror} is called. It doesn't matter what definition you
use for @code{YYERROR_VERBOSE}, just whether you define it. Using
@code{%error-verbose} is preferred.
@end deffn
@deffn {Macro} YYINITDEPTH
Macro for specifying the initial size of the parser stack.
@xref{Stack Overflow}.
@end deffn
@deffn {Function} yylex
User-supplied lexical analyzer function, called with no arguments to get
the next token. @xref{Lexical, ,The Lexical Analyzer Function
@code{yylex}}.
@end deffn
@deffn {Macro} YYLEX_PARAM
An obsolete macro for specifying an extra argument (or list of extra
arguments) for @code{yyparse} to pass to @code{yylex}. he use of this
macro is deprecated, and is supported only for Yacc like parsers.
@xref{Pure Calling,, Calling Conventions for Pure Parsers}.
@end deffn
@deffn {Variable} yylloc
External variable in which @code{yylex} should place the line and column
numbers associated with a token. (In a pure parser, it is a local
variable within @code{yyparse}, and its address is passed to
@code{yylex}.) You can ignore this variable if you don't use the
@samp{@@} feature in the grammar actions. @xref{Token Locations,
,Textual Locations of Tokens}.
@end deffn
@deffn {Type} YYLTYPE
Data type of @code{yylloc}; by default, a structure with four
members. @xref{Location Type, , Data Types of Locations}.
@end deffn
@deffn {Variable} yylval
External variable in which @code{yylex} should place the semantic
value associated with a token. (In a pure parser, it is a local
variable within @code{yyparse}, and its address is passed to
@code{yylex}.) @xref{Token Values, ,Semantic Values of Tokens}.
@end deffn
@deffn {Macro} YYMAXDEPTH
Macro for specifying the maximum size of the parser stack. @xref{Stack
Overflow}.
@end deffn
@deffn {Variable} yynerrs
Global variable which Bison increments each time there is a syntax error.
(In a pure parser, it is a local variable within @code{yyparse}.)
@xref{Error Reporting, ,The Error Reporting Function @code{yyerror}}.
@end deffn
@deffn {Function} yyparse
The parser function produced by Bison; call this function to start
parsing. @xref{Parser Function, ,The Parser Function @code{yyparse}}.
@end deffn
@deffn {Macro} YYPARSE_PARAM
An obsolete macro for specifying the name of a parameter that
@code{yyparse} should accept. The use of this macro is deprecated, and
is supported only for Yacc like parsers. @xref{Pure Calling,, Calling
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}.
@end deffn
@deffn {Macro} YYSTACK_USE_ALLOCA
Macro used to control the use of @code{alloca}. If defined to @samp{0},
the parser will not use @code{alloca} but @code{malloc} when trying to
grow its internal stacks. Do @emph{not} define @code{YYSTACK_USE_ALLOCA}
to anything else.
@end deffn
@deffn {Type} YYSTYPE
Data type of semantic values; @code{int} by default.
@xref{Value Type, ,Data Types of Semantic Values}.
@end deffn
@node Glossary