Tribblix: manual page: bison.1

BISON(1) User Commands BISON(1)

NAME

bison - GNU Project parser generator (yacc replacement)

SYNOPSIS

bison [OPTION]... FILE

DESCRIPTION

Bison is a parser generator in the style of yacc(1). It should be
upwardly compatible with input files designed for yacc.

Input files should follow the yacc convention of ending in .y.
Unlike yacc, the generated files do not have fixed names, but instead
use the prefix of the input file. Moreover, if you need to put 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
output file (.cpp or .c++). For instance, a grammar description file
named parse.yxx would produce the generated parser in a file named
parse.tab.cxx, instead of yacc's y.tab.c or old Bison version's
parse.tab.c.

This description of the options that can be given to bison is adapted
from the node Invocation in the bison.texi manual, which should be
taken as authoritative.

Bison supports both traditional single-letter options and mnemonic
long option names. Long option names are indicated with -- instead
of -. Abbreviations for option names are allowed as long as they are
unique. When a long option takes an argument, like --file-prefix,
connect the option name and the argument with =.

Generate a deterministic LR or generalized LR (GLR) parser employing
LALR(1), IELR(1), or canonical LR(1) parser tables.

Mandatory arguments to long options are mandatory for short options
too. The same is true for optional arguments.

Operation Modes:
-h, --help
display this help and exit

-V, --version
output version information and exit

--print-localedir
output directory containing locale-dependent data and exit

--print-datadir
output directory containing skeletons and XSLT and exit

-u, --update
apply fixes to the source grammar file and exit

-f, --feature[=FEATURES]
activate miscellaneous features

FEATURES is a list of comma separated words that can include:
caret, diagnostics-show-caret
show errors with carets

fixit, diagnostics-parseable-fixits
show machine-readable fixes

syntax-only
do not generate any file

all all of the above

none disable all of the above

Diagnostics:
-W, --warnings[=CATEGORY]
report the warnings falling in CATEGORY

--color[=WHEN]
whether to colorize the diagnostics

--style=FILE
specify the CSS FILE for colorizer diagnostics

Warning categories include:
conflicts-sr
S/R conflicts (enabled by default)

conflicts-rr
R/R conflicts (enabled by default)

counterexamples, cex
generate conflict counterexamples

dangling-alias
string aliases not attached to a symbol

deprecated
obsolete constructs

empty-rule
empty rules without %empty

midrule-values
unset or unused midrule values

precedence
useless precedence and associativity

yacc incompatibilities with POSIX Yacc

other all other warnings (enabled by default)

all all the warnings except 'counterexamples', 'dangling-alias'
and 'yacc'

no-CATEGORY
turn off warnings in CATEGORY

none turn off all the warnings

error[=CATEGORY]
treat warnings as errors

WHEN can be one of the following:
always, yes
colorize the output

never, no
don't colorize the output

auto, tty
colorize if the output device is a tty

Tuning the Parser:
-L, --language=LANGUAGE
specify the output programming language

-S, --skeleton=FILE
specify the skeleton to use

-t, --debug
instrument the parser for tracing same as '-Dparse.trace'

--locations
enable location support

-D, --define=NAME[=VALUE]
similar to '%define NAME VALUE'

-F, --force-define=NAME[=VALUE]
override '%define NAME VALUE'

-p, --name-prefix=PREFIX
prepend PREFIX to the external symbols deprecated by
'-Dapi.prefix={PREFIX}'

-l, --no-lines
don't generate '#line' directives

-k, --token-table
include a table of token names

-y, --yacc
emulate POSIX Yacc

Output Files:
-H, --header=[FILE]
also produce a header file

-d likewise but cannot specify FILE (for POSIX Yacc)

-r, --report=THINGS
also produce details on the automaton

--report-file=FILE
write report to FILE

-v, --verbose
same as '--report=state'

-b, --file-prefix=PREFIX
specify a PREFIX for output files

-o, --output=FILE
leave output to FILE

-g, --graph[=FILE]
also output a graph of the automaton

--html[=FILE]
also output an HTML report of the automaton

-x, --xml[=FILE]
also output an XML report of the automaton

-M, --file-prefix-map=OLD=NEW replace prefix OLD with NEW when
writing file paths
in output files

THINGS is a list of comma separated words that can include:
states describe the states

itemsets
complete the core item sets with their closure

lookaheads
explicitly associate lookahead tokens to items

solved describe shift/reduce conflicts solving

counterexamples, cex
generate conflict counterexamples

all include all the above information

none disable the report

AUTHOR

Written by Robert Corbett and Richard Stallman.

REPORTING BUGS

Report bugs to <bug-bison@gnu.org>.
GNU Bison home page: <https://www.gnu.org/software/bison/>.
General help using GNU software: <https://www.gnu.org/gethelp/>.
For complete documentation, run: info bison.

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