diff options
Diffstat (limited to 'easytags.vim')
| -rw-r--r-- | easytags.vim | 75 |
1 files changed, 50 insertions, 25 deletions
diff --git a/easytags.vim b/easytags.vim index fc6ab77..30efb3d 100644 --- a/easytags.vim +++ b/easytags.vim @@ -1,10 +1,10 @@ " Vim plug-in " Maintainer: Peter Odding <peter@peterodding.com> -" Last Change: June 13, 2010 +" Last Change: June 15, 2010 " URL: http://peterodding.com/code/vim/easytags " Requires: Exuberant Ctags (http://ctags.sf.net) " License: MIT -" Version: 1.9 +" Version: 1.9.3 " Support for automatic update using the GLVS plug-in. " GetLatestVimScripts: 3114 1 :AutoInstall: easytags.zip @@ -40,38 +40,62 @@ if !exists('g:easytags_ignored_filetypes') let g:easytags_ignored_filetypes = '^tex$' endif -" Before sourcing the rest of the plug-in first check that the location of the -" "Exuberant Ctags" program has been configured or that the program exists in -" one of its default locations. - -if exists('g:easytags_cmd') && executable(g:easytags_cmd) - let s:ctags_installed = 1 -else +function! s:InitEasyTags(version) + " Check that the location of Exuberant Ctags has been configured or that the + " correct version of the program exists in one of its default locations. + if exists('g:easytags_cmd') && s:CheckCtags(g:easytags_cmd, a:version) + return 1 + endif " On Ubuntu Linux, Exuberant Ctags is installed as `ctags'. On Debian Linux, " Exuberant Ctags is installed as `exuberant-ctags'. On Free-BSD, Exuberant " Ctags is installed as `exctags'. Finally there is `ctags.exe' on Windows. - for s:command in ['ctags', 'exuberant-ctags', 'esctags', 'ctags.exe'] - if executable(s:command) - let g:easytags_cmd = s:command - let s:ctags_installed = 1 - break + for name in ['ctags', 'exuberant-ctags', 'esctags'] + if s:CheckCtags(name, a:version) + let g:easytags_cmd = name + return 1 endif endfor - unlet s:command -endif - -if !exists('s:ctags_installed') - echomsg "easytags.vim: Exuberant Ctags unavailable! Plug-in not loaded." - if executable('apt-get') - echomsg "On Ubuntu & Debian Linux, you can install Exuberant Ctags" - echomsg "by installing the package named `exuberant-ctags':" - echomsg " sudo apt-get install exuberant-ctags" +endfunction + +function! s:CheckCtags(name, version) + " Not every executable out there named `ctags' is in fact Exuberant Ctags. + " This function makes sure it is because the easytags plug-in requires the + " --list-languages option. + if executable(a:name) + let listing = system(a:name . ' --version') + let pattern = 'Exuberant Ctags \zs\d\+\(\.\d\+\)*' + let g:easytags_ctags_version = matchstr(listing, pattern) + return s:VersionToNumber(g:easytags_ctags_version) >= a:version + endif +endfunction + +function! s:VersionToNumber(s) + let values = split(a:s, '\.') + if len(values) == 1 + return values[0] * 10 + elseif len(values) >= 2 + return values[0] * 10 + values[1][0] + endif +endfunction + +if !s:InitEasyTags(55) + if !exists('g:easytags_ctags_version') || empty(g:easytags_ctags_version) + let msg = "easytags.vim: Plug-in not loaded because Exuberant Ctags isn't installed!" + if executable('apt-get') + let msg ,= " On Ubuntu & Debian you can install Exuberant Ctags by" + let msg .= " installing the package named `exuberant-ctags':" + let msg .= " sudo apt-get install exuberant-ctags" + else + let msg .= " Please download & install Exuberant Ctags from http://ctags.sf.net" + endif + echomsg msg else - echomsg "Please download & install Exuberant Ctags from http://ctags.sf.net" + let msg = "easytags.vim: Plug-in not loaded because Exuberant Ctags 5.5" + let msg .= " or newer is required while you have version %s installed!" + echomsg printf(msg, g:easytags_ctags_version) endif finish endif -unlet s:ctags_installed " Let Vim know about the global tags file created by this plug-in. @@ -106,6 +130,7 @@ augroup PluginEasyTags endif if g:easytags_on_cursorhold autocmd CursorHold,CursorHoldI * call easytags#autoload() + autocmd BufReadPost * unlet! b:easytags_last_highlighted endif autocmd User PublishPre HighlightTags augroup END |