OCAMLYACC
Section: User Commands (1)
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NAME
ocamlyacc - The OCaml parser generator
SYNOPSIS
ocamlyacc
[
-bprefix
] [
-q
] [
-v
] [
-version
] [
-vnum
]
filename.mly
DESCRIPTION
The
ocamlyacc(1)
command produces a parser from a LALR(1) context-free grammar
specification with attached semantic actions, in the style of
yacc(1).
Assuming the input file is
grammar.mly,
running
ocamlyacc
produces OCaml code for a parser in the file
grammar.ml,
and its interface in file
grammar.mli.
The generated module defines one parsing function per entry point in
the grammar. These functions have the same names as the entry points.
Parsing functions take as arguments a lexical analyzer (a function
from lexer buffers to tokens) and a lexer buffer, and return the
semantic attribute of the corresponding entry point. Lexical analyzer
functions are usually generated from a lexer specification by the
ocamllex(1)
program. Lexer buffers are an abstract data type
implemented in the standard library module Lexing. Tokens are values from
the concrete type token, defined in the interface file
grammar.mli
produced by
ocamlyacc(1).
OPTIONS
The
ocamlyacc(1)
command recognizes the following options:
- -bprefix
-
Name the output files
prefix.ml,
prefix.mli,
prefix.output,
instead of the default naming convention.
- -q
-
This option has no effect.
- --strict
-
Reject grammars with conflicts.
- -v
-
Generate a description of the parsing tables and a report on conflicts
resulting from ambiguities in the grammar. The description is put in
file
grammar.output.
- -version
-
Print version string and exit.
- -vnum
-
Print short version number and exit.
- -
-
Read the grammar specification from standard input. The default
output file names are stdin.ml and stdin.mli.
- -- file
-
Process
file
as the grammar specification, even if its name
starts with a dash (-) character. This option must be the last on the
command line.
SEE ALSO
ocamllex(1).
The OCaml user's manual,
chapter "Lexer and parser generators".
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- SEE ALSO
-
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Time: 08:32:18 GMT, April 20, 2024