alex: Alex is a tool for generating lexical analysers in Haskell

[ bsd3, development, program ] [ Propose Tags ]

Alex is a tool for generating lexical analysers in Haskell. It takes a description of tokens based on regular expressions and generates a Haskell module containing code for scanning text efficiently. It is similar to the tool lex or flex for C/C++.

Changes in 3.1.0:

necessary changes to work with GHC 7.8.1

[Skip to Readme]

Versions [faq]	2.1.0, 2.2, 2.3, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.2.0, 3.2.1, 3.2.2, 3.2.3, 3.2.4
Dependencies	array, base (>=1.0 && <4.7), containers, directory, QuickCheck (>=2) [details]
License	BSD-3-Clause
Copyright	(c) Chis Dornan, Simon Marlow
Author	Chris Dornan and Simon Marlow
Maintainer	Simon Marlow <marlowsd@gmail.com>
Revised	Revision 2 made by HerbertValerioRiedel at Tue Jan 6 21:50:58 UTC 2015
Category	Development
Home page	http://www.haskell.org/alex/
Bug tracker	mailto:marlowsd@gmail.com
Source repo	head: git clone https://github.com/simonmar/alex.git
Uploaded	by SimonMarlow at Mon Sep 16 19:33:54 UTC 2013
Distributions	Arch:3.2.4, Debian:3.2.4, Fedora:3.2.4, FreeBSD:3.1.4, LTSHaskell:3.2.4, NixOS:3.2.4, Stackage:3.2.4, openSUSE:3.2.4
Executables	alex
Downloads	107938 total (773 in the last 30 days)
Rating	2.0 (votes: 1) [estimated by rule of succession]
Your Rating	λ λ λ
Status	Docs available [build log] Successful builds reported [all 1 reports]

Flags

Name	Description	Default	Type
small_base	Choose the new smaller, split-up base package.	Enabled	Automatic

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

alex-3.1.0.tar.gz [browse] (Cabal source package)
Package description (revised from the package)

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

For package maintainers and hackage trustees

edit package information

Readme for alex-3.1.0

[back to package description]

		       Alex: A Lexical Analyser Generator

Alex is a Lex-like tool for generating Haskell scanners.  For complete
documentation, see the doc directory.

   http://www.haskell.org/alex/
   http://hackage.haskell.org/package/alex

Alex is built using Cabal.  First install GHC, then:
 
  $ runhaskell Setup.lhs configure
  $ runhaskell Setup.lhs build
  $ runhaskell Setup.lhs install

Alex version 2.0 has changed fairly considerably since version 1.x,
and the syntax is almost completely different.  For a detailed list of
changes, see the release notes in the documentation.

Alex is now covered by a BSD-Style licence; see the licence file in
the `doc' directory for details.

The sources are in the the `src' directory and the documentation in the `doc'
directory; various  examples are in the 'examples' subdirectory.

The source code in the 'src' and 'examples' directories is intended
for a Haskell 98 compiler with hierarchical modules.  It should work
with GHC >= 5.04.

Please report any bugs or comments to the email addresses given below.

Share and enjoy,

Chris Dornan:  cdornan@arm.com
Isaac Jones:   ijones@syntaxpolice.org
Simon Marlow:  simonmar@microsoft.com