flex

Lexical analyzer generator. Based on lex. Given the specification for a lexical analyzer, generates C code implementing it. More information: <https://manned.org/flex>.

Install

All systems
curl cmd.cat/flex.sh
Debian Debian
apt-get install flex
Ubuntu
apt-get install flex
Alpine
apk add flex
Arch Arch Linux
pacman -S flex
image/svg+xml Kali Linux
apt-get install flex
CentOS
yum install flex
Fedora
dnf install flex
Windows (WSL2)
sudo apt-get update sudo apt-get install flex
OS X
brew install flex
Raspbian
apt-get install flex
Dockerfile
dockerfile.run/flex
Docker
docker run cmd.cat/flex flex powered by Commando

Lexical analyzer generator. Based on lex. Given the specification for a lexical analyzer, generates C code implementing it. More information: <https://manned.org/flex>.

  • Generate an analyzer from a flex file:
    flex analyzer.l
  • Specify the output file:
    flex --outfile analyzer.c analyzer.l
  • Compile a C file generated by flex:
    cc path/to/lex.yy.c --output executable

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