X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/4947ebdb4ccb37b60b375ffb94172418677a841b..388f8b197de3956d0378faa5166f6a5d01fd96e5:/doc/bison.1 diff --git a/doc/bison.1 b/doc/bison.1 index 93eaf201..5e1d962d 100644 --- a/doc/bison.1 +++ b/doc/bison.1 @@ -59,6 +59,11 @@ bison \- GNU Project parser generator (yacc replacement) .B \-\-fixed-output-files ] file +.br +.B yacc +[ +.I "similar options and operands" +] .SH DESCRIPTION .I Bison is a parser generator in the style of @@ -75,10 +80,10 @@ Unlike .IR yacc , the generated files do not have fixed names, but instead use the prefix of the input file. -Moreover, if you need to put -.IR C++ +Moreover, if you need to put +.I C++ code in the input file, you can end his name by a C++-like extension -(.ypp or .y++), then bison will follow your extension to name the +(.ypp or .y++), then bison will follow your extension to name the output file (.cpp or .c++). For instance, a grammar description file named .B parse.yxx @@ -86,10 +91,10 @@ would produce the generated parser in a file named .BR parse.tab.cxx , instead of .IR yacc 's -.BR y.tab.c -or old -.IR Bison -versions +.B y.tab.c +or old +.I Bison +version's .BR parse.tab.c . .PP This description of the options that can be given to @@ -122,7 +127,7 @@ Specify a prefix to use for all .I bison output file names. The names are chosen as if the input file were named -\fIfile-prefix\fB.c\fR. +\fIfile-prefix\fP\fB.c\fP. .TP .B \-d .br @@ -135,10 +140,10 @@ as well as a few variable declarations. .sp If the parser output file is named -\fIname\fB.c\fR +.IB name .c then this file is named -\fIname\fB.h\fR. +\fIname\fP\fB.h\fP. .sp This output file is essential if you wish to put the definition of .B yylex @@ -148,29 +153,29 @@ needs to be able to refer to token type codes and the variable .BR yylval . .TP .BI \-\-defines= defines-file -The behaviour of -.BI \-\-defines -is the same than -.BI \-d -option. -The only difference is that it has an optionnal argument which is +The behavior of +.B \-\-defines +is the same than +.B \-d +option. +The only difference is that it has an optional argument which is the name of the output filename. .TP .BI \-g .br .ns Output a VCG definition of the LALR(1) grammar automaton computed by -Bison. If the grammar file is +Bison. If the grammar file is .BR foo.y , the VCG output file will be .BR foo.vcg . .TP .BI \-\-graph= graph-file -The behaviour of -.BI \-\-graph +The behavior of +.BI \-\-graph is the same than .BI \-g -option. The only difference is that it has an optionnal argument which +option. The only difference is that it has an optional argument which is the name of the output graph filename. .TP .B \-k @@ -178,8 +183,10 @@ is the name of the output graph filename. .ns .TP .B \-\-token-table -This switch causes the \fIname\fB.tab.c\fR output to include a list of -token names in order by their token numbers; this is defined in the array +This switch causes the +.IB name .tab.c +output to include a list of +token names in order by their token numbers; this is defined in the array .IR yytname . Also generated are #defines for @@ -209,9 +216,13 @@ parser file, treating it an independent source file in its own right. .ns .TP .B \-\-no-parser -Do not generate the parser code into the output; generate only -declarations. The generated \fIname\fB.tab.c\fR file will have only -constant declarations. In addition, a \fIname\fB.act\fR file is +Do not generate the parser code into the output; generate only +declarations. The generated +.IB name .tab.c +file will have only +constant declarations. In addition, a +.IB name .act +file is generated containing a switch statement body containing all the translated actions. .TP @@ -334,29 +345,16 @@ The purpose of this switch is to imitate .IR yacc 's output file name conventions. Thus, the following shell script can substitute for +.I yacc +and is often installed as .IR yacc : .sp .RS .ft B -bison \-y $* +bison \-y "$@" .ft R .sp .RE -.SH FILES -/usr/local/share/bison/bison.simple simple parser -.br -/usr/local/share/bison/bison.hairy complicated parser -.SH "ENVIRONMENT VARIABLES" -.TP -.SM BISON_SIMPLE -If this is set, it specifies the location in which the -.B bison.simple -parser can be found. -.TP -.SM BISON_HAIRY -If this is set, it specifies the location in which the -.B bison.hairy -parser can be found. .SH SEE ALSO .IR yacc (1) .br