46 lines
1.2 KiB
Matlab
46 lines
1.2 KiB
Matlab
.TH CSLLEX 1
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.SH NAME
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csllex \- The Caml Special Light lexer generator
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.SH SYNOPSIS
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.B csllex
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.I filename.mll
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.SH DESCRIPTION
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The
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.BR csllex (1)
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command generates Caml Special Light lexers from a set of regular
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expressions with associated semantic actions, in the style of
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.BR lex (1).
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Running
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.BR csllex (1)
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on the input file
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.IR lexer \&.mll
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produces Caml code for a lexical analyzer in file
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.IR lexer \&.ml.
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This file defines one lexing function per entry point in the lexer
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definition. These functions have the same names as the entry
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points. Lexing functions take as argument a lexer buffer, and return
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the semantic attribute of the corresponding entry point.
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Lexer buffers are an abstract data type implemented in the standard
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library module Lexing. The functions Lexing.from_channel,
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Lexing.from_string and Lexing.from_function create
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lexer buffers that read from an input channel, a character string, or
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any reading function, respectively.
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When used in conjunction with a parser generated by
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.BR cslyacc (1),
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the semantic actions compute a value belonging to the type token defined
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by the generated parsing module.
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.SH SEE ALSO
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.BR cslyacc (1).
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.br
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.I The Caml Special Light user's manual,
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chapter "Lexer and parser generators".
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