flex

Flex is a fast lexical analyser generator. It is a tool for generating programs that perform pattern-matching on text. See documentation

Maintainers

• The Core Planners: chef-core-planners@chef.io

Type of Package

Binary package

Use as Dependency

Binary packages can be set as runtime or build time dependencies. See Defining your dependencies for more information.

To add core/flex as a dependency, you can add one of the following to your plan file.

Buildtime Dependency

pkg_build_deps=(core/flex)

Runtime dependency

pkg_deps=(core/flex)

Use as Tool

Installation

To install this plan, you should run the following commands to first install, and then link the binaries this plan creates.

hab pkg install core/flex --binlink

will add the following binaries to the PATH:

• /bin/lex
• /bin/flex
• /bin/flex++

For example:

$ hab pkg install core/flex --binlink
» Installing core/flex
☁ Determining latest version of core/flex in the 'stable' channel
→ Using core/flex/2.6.4/20200305232255
★ Install of core/flex/2.6.4/20200305232255 complete with 0 new packages installed.
» Binlinking lex from core/flex/2.6.4/20200305232255 into /bin
★ Binlinked lex from core/flex/2.6.4/20200305232255 to /bin/lex
» Binlinking flex from core/flex/2.6.4/20200305232255 into /bin
★ Binlinked flex from core/flex/2.6.4/20200305232255 to /bin/flex
» Binlinking flex++ from core/flex/2.6.4/20200305232255 into /bin
★ Binlinked flex++ from core/flex/2.6.4/20200305232255 to /bin/flex++

Using an example binary

You can now use the binary as normal. For example:

/bin/flex --help or flex --help

$ flex --help
Usage: flex [OPTIONS] [FILE]...
Generates programs that perform pattern-matching on text.

Table Compression:
  -Ca, --align      trade off larger tables for better memory alignment
  -Ce, --ecs        construct equivalence classes
  -Cf               do not compress tables; use -f representation
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