English
- YACC(1) Minix Programmer's Manual YACC(1)
- NAME
- yacc - an LALR(1) parser generator
- SYNOPSIS
- yacc [ -dlrtv ] [ -b file_prefix ] [ -p symbol_prefix ] filename
- DESCRIPTION
- Yacc reads the grammar specification in the file filename and generates
- an LR(1) parser for it. The parsers consist of a set of LALR(1) parsing
- tables and a driver routine written in the C programming language. Yacc
- normally writes the parse tables and the driver routine to the file
- y.tab.c.
- The following options are available:
- -b file_prefix
- The -b option changes the prefix prepended to the output file names
- to the string denoted by file_prefix. The default prefix is the
- character y.
- -d The -d option causes the header file y.tab.h to be written.
- -l If the -l option is not specified, yacc will insert #line directives
- in the generated code. The #line directives let the C compiler
- relate errors in the generated code to the user's original code. If
- the -l option is specified, yacc will not insert the #line
- directives. #line directives specified by the user will be
- retained.
- -p symbol_prefix
- The -p option changes the prefix prepended to yacc-generated symbols
- to the string denoted by symbol_prefix. The default prefix is the
- string yy.
- -r The -r option causes yacc to produce separate files for code and
- tables. The code file is named y.code.c, and the tables file is
- named y.tab.c.
- -t The -t option changes the preprocessor directives generated by yacc
- so that debugging statements will be incorporated in the compiled
- code.
- -v The -v option causes a human-readable description of the generated
- parser to be written to the file y.output.
- If the environment variable TMPDIR is set, the string denoted by TMPDIR
- will be used as the name of the directory where the temporary files are
- created.
- 6BSD July 15, 1990 1
- YACC(1) Minix Programmer's Manual YACC(1)
- FILES
- y.code.c
- y.tab.c
- y.tab.h
- y.output
- /tmp/yacc.aXXXXXX
- /tmp/yacc.tXXXXXX
- /tmp/yacc.uXXXXXX
- DIAGNOSTICS
- If there are rules that are never reduced, the number of such rules is
- reported on standard error. If there are any LALR(1) conflicts, the
- number of conflicts is reported on standard error.
- 6BSD July 15, 1990 2
