Package flex: Information

Source package: flex
Version: 2.5.37-alt2
Build time:  Sep 8, 2012, 02:20 AM
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License: BSD-style
Summary: A fast lexical analyzer generator
flex is a tool for generating scanners: programs which recognized lexical
patterns in text.  flex reads the given input files 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.

The behaviour of Flex has undergone a major change since version
2.5.4a.  Flex scanners are now reentrant, you may have multiple
scanners in the same program with differing sets of defaults, and
they play nicer with modern C and C++ compilers.  The Flip side is
that Flex no longer conforms to the POSIX lex behaviour, and the
scanners require conforming implementations when flex is used in ANSI
C mode.  The package flex-old provides the older behaviour.

List of rpms provided by this srpm:
flex (x86_64, i586)
flex-debuginfo (x86_64, i586)

Maintainer: Dmitry V. Levin

List of contributors:
Dmitry V. Levin
Alexey Gladkov
Stanislav Ievlev

    1. help2man
    2. flex
    3. gcc-c++

Last changed

Sept. 7, 2012 Dmitry V. Levin 2.5.37-alt2
- Reverted upstream commit flex-2.5.37-10-gec2fdb8 that introduced
  certain regressions.
Sept. 5, 2012 Dmitry V. Levin 2.5.37-alt1
- Updated to flex-2.5.37-17-gbac5b2b.
- flex.skl: fixed warnings generated by gcc -Wunused-parameter
  (closes: #27661).
Sept. 1, 2012 Dmitry V. Levin 2.5.36-alt1
- Updated to 2.5.36.
- Fixed build with new bison.