?package(flex-doc):needs="dwww" section="Apps/Programming" title="flex"\
 longtitle=" Fast LEXical analyzer generator. \
 Flex is a tool for generating programs that perform pattern-matching on \
 text.  It generates ``scanners'': programs which recognized lexical \
 patterns in text.  `flex' reads the given input files, or its \
 standard input if no file names are given, for a description of a \
 scanner to generate.  The description is in the form of pairs of \
 regular expressions and C code, called ``rules''. `flex' generates as \
 output a C source file, `lex.yy.c', which defines a routine \
 `yylex()'.  This file is compiled and linked with the `-lfl' library \
 to produce an executable.  When the executable is run, it analyzes \
 its input for occurrences of the regular expressions. Whenever it \
 finds one, it executes the corresponding C code.  " \
 command="/usr/share/doc/flex-doc/flex_toc.html"
