hasktags: a tool to generate tag files for vim and emacs

What is it for? A tag file is a index containing key items of your project such as

• function names
• module names
• data declarations
• ...

so that you can find / jump to them fast.

HOWTO (GENERATING TAG FILES): Build hasktags (standard cabal build)

I've been using this bash function or something similar for a long time. It may be cumbersome but works:

runHaskTagsVim() { # use --etags instead of --ctags for emacs hasktags --ignore-close-implementation --ctags .; sort tags }

HOWTO (USING TAG FILES): VIM: let tags+=tagifle " tags,TAGS is the default setting so probably you don't have to do anything :tjump foo or such. See :h tags

NEdit: Load the "tags" file using File/Load Tags File. Use "Ctrl-D" to search for a tag.

XEmacs/Emacs: Load the "TAGS" file using "visit-tags-table" Use "M-." to search for a tag.

jedit: There is a plugin

run test cases: cd testcases; sh test.sh

history: In the past this tool was distributed with ghc. I forked and added some features. hasktags itself was moved out of the ghc repository. Then I only verified that my fork finds at least as much tags as the one forked by Igloo.

Things which could be done in the future:

• make json support optional
• Marco Túlio Pimenta Gontijo proposed replacing json by aeson because it might be faster
• write a nice README.md file instead

maintainers: See cabal file

comments about literate haskell (lhs):

http://www.haskell.org/haskellwiki/Literate_programming alex no longer supports bird style ">", so should we drop support, too?

contributors: Tsuru Capital (github/liyang) Marco Túlio Pimenta Gontijo (github/marcotmarcot) TODO: add all people having contributed before Oct 2012 This includes people contributing to the darcs repository as well as people having contributed when this repository has been part of ghc

related work (list taken from announce of lushtags: https://github.com/bitc/lushtags http://hackage.haskell.org/package/hasktags http://kingfisher.nfshost.com/sw/gasbag/ http://hackage.haskell.org/package/hothasktags http://majutsushi.github.com/tagbar/ and probably much more