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[ Källkod: flex  ]

Paket: flex (2.5.35-6)

A fast lexical analyzer generator.

Flex is a tool for generating scanners: programs which recognized lexical patterns in text. It 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, and it is now possible to have multiple scanners in the same program with differing sets of defaults, and the scanners 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.

Märken: Software Development: Code Generation, Implemented in: C, User Interface: Command Line, Role: Program, Scope: Utility, Works with: Source Code

Andra paket besläktade med flex

  • beror
  • rekommenderar
  • föreslår
  • dep: libc6 (>= 2.7-1) [ej alpha, ia64]
    GNU C-bibliotek: Delade bibliotek
    också ett virtuellt paket som tillhandahålls av libc6-udeb
  • dep: libc6.1 (>= 2.7-1) [alpha, ia64]
    GNU C-bibliotek: Delade bibliotek
    också ett virtuellt paket som tillhandahålls av libc6.1-udeb
  • dep: m4
    ett makrobearbetningsspråk
  • sug: bison
    A parser generator that is compatible with YACC

Hämta flex

Hämtningar för alla tillgängliga arkitekturer
Arkitektur Paketstorlek Installerad storlek Filer
alpha 320,6 kbyte1032 kbyte [filförteckning]
amd64 320,8 kbyte1004 kbyte [filförteckning]
arm 316,6 kbyte785 kbyte [filförteckning]
armel 313,4 kbyte984 kbyte [filförteckning]
hppa 318,8 kbyte988 kbyte [filförteckning]
i386 306,7 kbyte776 kbyte [filförteckning]
ia64 352,6 kbyte1244 kbyte [filförteckning]
mips 321,5 kbyte1036 kbyte [filförteckning]
mipsel 320,9 kbyte1036 kbyte [filförteckning]
powerpc 318,9 kbyte1000 kbyte [filförteckning]
s390 318,6 kbyte996 kbyte [filförteckning]
sparc 314,5 kbyte992 kbyte [filförteckning]