Language

Package: flex @ 2.6.4

Synopsis

Fast lexical analyser generator

Description

Flex is a tool for generating scanners. A scanner, sometimes called a tokenizer, is a program which recognizes lexical patterns in text. The flex program reads user-specified 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 a C source file named, "lex.yy.c", which defines the function yylex(). The file "lex.yy.c" can be compiled and linked to produce an executable. When the executable is run, it analyzes its input for occurrences of text matching the regular expressions for each rule. Whenever it finds a match, it executes the corresponding C code.

Home page
https://github.com/westes/flex
Location
gnu/packages/flex.scm (line: 33, column: 2)
License

Derivations

SystemTargetDerivationBuild status
x86_64-linux/gnu/store/0ffy6076q549ph101dd0mj8398gz4zlj-flex-2.6.4.drv
x86_64-linuxx86_64-w64-mingw32/gnu/store/3aph6f53gcwv17kpxklpcds8zclkknhs-flex-2.6.4.drv
x86_64-linuxriscv64-linux-gnu/gnu/store/60mq0rzj1m447ncqqvr57sj67rzivi73-flex-2.6.4.drv
x86_64-linuxpowerpc-linux-gnu/gnu/store/7xgwzna5xfi9cm9g1m7a8jv1mvd0a3iy-flex-2.6.4.drv
x86_64-linuxpowerpc64le-linux-gnu/gnu/store/3g6r5m7hqf1jp09vl6qsl4w32m7js6zj-flex-2.6.4.drv
x86_64-linuxmips64el-linux-gnu/gnu/store/xdy74yz692zxarfbkjzx4z32w1fk2j65-flex-2.6.4.drv
x86_64-linuxi686-w64-mingw32/gnu/store/8pk08vyn29qmhij51y1ipgzcfzmrrkzs-flex-2.6.4.drv
x86_64-linuxi586-pc-gnu/gnu/store/k119pk3x6iygqbgm0c5hpnyc49a7jz4a-flex-2.6.4.drv
x86_64-linuxarm-linux-gnueabihf/gnu/store/w2dz75agwiajxq4rrlvw787sj3k34yp2-flex-2.6.4.drv
x86_64-linuxaarch64-linux-gnu/gnu/store/4h4r5xf2iq25iy0lsqff6m9nvn194rir-flex-2.6.4.drv
riscv64-linux/gnu/store/1xlvj75lrw38szlxyjj2620ix95jmv6g-flex-2.6.4.drv
    powerpc-linux/gnu/store/x838flfw4awnp8wngrfsk7ynqnaxfjp1-flex-2.6.4.drv
      powerpc64le-linux/gnu/store/qpyd0z4d7xna65f0f08gp786sz12dsf4-flex-2.6.4.drv
      mips64el-linux/gnu/store/i6wzr250bqjn16mmg4dzlfxl74955hvy-flex-2.6.4.drv
        i686-linux/gnu/store/836xm276cy7jz5jdfwg9vjxrzkvdvvwr-flex-2.6.4.drv
        i586-gnu/gnu/store/xsq6qvp3is2l3bds121j43a1lzfj3hyz-flex-2.6.4.drv
        armhf-linux/gnu/store/z3j749dca72wicpsb4dl66mbsq7i6r2k-flex-2.6.4.drv
        aarch64-linux/gnu/store/jqx59cxayywkxhgw5bvrll699gvmlish-flex-2.6.4.drv

        Lint warnings

        LinterMessageLocation
        inputs-should-be-native

        Identify inputs that should be native inputs

        'bison' should probably be a native input
        inputs-should-be-native

        Identify inputs that should be native inputs

        'm4' should probably be a native input