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" Vim plug-in
" Author: Peter Odding <peter@peterodding.com>
" Last Change: August 19, 2013
" URL: http://peterodding.com/code/vim/easytags/
" Requires: Exuberant Ctags (http://ctags.sf.net)
" Support for automatic update using the GLVS plug-in.
" GetLatestVimScripts: 3114 1 :AutoInstall: easytags.zip
" Don't source the plug-in when it's already been loaded or &compatible is set.
if &cp || exists('g:loaded_easytags')
finish
endif
" Make sure vim-misc is installed. {{{1
try
" The point of this code is to do something completely innocent while making
" sure the vim-misc plug-in is installed. We specifically don't use Vim's
" exists() function because it doesn't load auto-load scripts that haven't
" already been loaded yet (last tested on Vim 7.3).
call type(g:xolox#misc#version)
catch
echomsg "Warning: The vim-easytags plug-in requires the vim-misc plug-in which seems not to be installed! For more information please review the installation instructions in the readme (also available on the homepage and on GitHub). The vim-easytags plug-in will now be disabled."
let g:loaded_easytags = 1
finish
endtry
" Configuration defaults and initialization. {{{1
if !exists('g:easytags_file')
if xolox#misc#os#is_win()
let g:easytags_file = '~\_vimtags'
else
let g:easytags_file = '~/.vimtags'
endif
endif
if !exists('g:easytags_by_filetype')
let g:easytags_by_filetype = ''
endif
if !exists('g:easytags_events')
let g:easytags_events = []
if !exists('g:easytags_on_cursorhold') || g:easytags_on_cursorhold
call extend(g:easytags_events, ['CursorHold', 'CursorHoldI'])
endif
if exists('g:easytags_always_enabled') && g:easytags_always_enabled
call extend(g:easytags_events, ['BufReadPost', 'BufWritePost', 'FocusGained', 'ShellCmdPost', 'ShellFilterPost'])
endif
endif
if !exists('g:easytags_ignored_filetypes')
let g:easytags_ignored_filetypes = '^tex$'
endif
if exists('g:easytags_ignored_syntax_groups')
call xolox#misc#msg#warn("easytags.vim %s: The 'g:easytags_ignored_syntax_groups' option is no longer supported. It has been moved back into the code base for more flexible handling at runtime.", g:xolox#easytags#version)
endif
if !exists('g:easytags_python_script')
let g:easytags_python_script = expand('<sfile>:p:h') . '/../misc/easytags/highlight.py'
endif
" Make sure Exuberant Ctags >= 5.5 is installed.
if !xolox#easytags#initialize('5.5')
" Did the user configure the plug-in to suppress the regular warning message?
if !(exists('g:easytags_suppress_ctags_warning') && g:easytags_suppress_ctags_warning)
" Explain to the user what went wrong:
if !exists('g:easytags_ctags_version') || empty(g:easytags_ctags_version)
" Exuberant Ctags is not installed / could not be found.
let s:msg = "easytags.vim %s: Plug-in not loaded because Exuberant Ctags isn't installed!"
if executable('apt-get')
let s:msg .= " On Ubuntu & Debian you can install Exuberant Ctags by"
let s:msg .= " installing the package named `exuberant-ctags':"
let s:msg .= " sudo apt-get install exuberant-ctags"
else
let s:msg .= " Please download & install Exuberant Ctags from http://ctags.sf.net"
endif
call xolox#misc#msg#warn(s:msg, g:xolox#easytags#version)
else
" The installed version is too old.
let s:msg = "easytags.vim %s: Plug-in not loaded because Exuberant Ctags 5.5"
let s:msg .= " or newer is required while you have version %s installed!"
call xolox#misc#msg#warn(s:msg, g:xolox#easytags#version, g:easytags_ctags_version)
endif
unlet s:msg
endif
" Stop loading the plug-in; don't define the (automatic) commands.
finish
endif
" The plug-in initializes the &tags option as soon as possible so that the
" global tags file is available when using "vim -t some_tag". If &tags is
" reset, we'll try again on the "VimEnter" automatic command event (below).
call xolox#easytags#register(1)
" The :UpdateTags and :HighlightTags commands. {{{1
command! -bar -bang -nargs=* -complete=file UpdateTags call xolox#easytags#update(0, <q-bang> == '!', [<f-args>])
command! -bar HighlightTags call xolox#easytags#highlight()
command! -bang TagsByFileType call xolox#easytags#by_filetype(<q-bang> == '!')
" Automatic commands. {{{1
augroup PluginEasyTags
autocmd!
" This is the alternative way of registering the global tags file using
" the automatic command event "VimEnter". Apparently this makes the
" plug-in behave better when used together with tplugin?
autocmd VimEnter * call xolox#easytags#register(1)
" Define the automatic commands to perform updating/highlighting.
for s:eventname in g:easytags_events
execute 'autocmd' s:eventname '* call xolox#easytags#autoload(' string(s:eventname) ')'
endfor
" Define an automatic command to register file type specific tags files?
if !empty(g:easytags_by_filetype)
autocmd FileType * call xolox#easytags#register(0)
endif
" After reloading a buffer the dynamic syntax highlighting is lost. The
" following code makes sure the highlighting is refreshed afterwards.
autocmd BufReadPost * unlet! b:easytags_last_highlighted
augroup END
" }}}1
" Make sure the plug-in is only loaded once.
let g:loaded_easytags = 1
" vim: ts=2 sw=2 et
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