Package flex: Information
Binary package: flex
Build time: Nov 23, 2020, 08:05 AM
Source package: flex
Category: Development/OtherReport package bug
Home page: http://flex.sourceforge.net/
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.
Maintainer: Dmitry V. Levin
Jan. 2, 2019 Dmitry V. Levin 220.127.116.11.88.9801-alt1
- v2.6.0-8-g9ba6e52 -> v2.6.4-88-g98018e3. - Reverted 2.5.37-alt2 (closes: #35141).
Dec. 2, 2015 Dmitry V. Levin 2.6.0-alt1
- Updated to v2.6.0-8-g9ba6e52.
Sept. 7, 2012 Dmitry V. Levin 2.5.37-alt2
- Reverted upstream commit flex-2.5.37-10-gec2fdb8 that introduced certain regressions.