287 lines
8.8 KiB
VimL
287 lines
8.8 KiB
VimL
if exists('g:loaded_syntastic_util_autoload') || !exists("g:loaded_syntastic_plugin")
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finish
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endif
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let g:loaded_syntastic_util_autoload = 1
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let s:save_cpo = &cpo
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set cpo&vim
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" Public functions {{{1
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function! syntastic#util#isRunningWindows() " {{{2
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return has('win16') || has('win32') || has('win64')
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endfunction " }}}2
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function! syntastic#util#DevNull() " {{{2
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if syntastic#util#isRunningWindows()
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return 'NUL'
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endif
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return '/dev/null'
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endfunction " }}}2
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" Get directory separator
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function! syntastic#util#Slash() abort " {{{2
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return (!exists("+shellslash") || &shellslash) ? '/' : '\'
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endfunction " }}}2
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"search the first 5 lines of the file for a magic number and return a map
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"containing the args and the executable
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"
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"e.g.
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"
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"#!/usr/bin/perl -f -bar
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"
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"returns
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"
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"{'exe': '/usr/bin/perl', 'args': ['-f', '-bar']}
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function! syntastic#util#parseShebang() " {{{2
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for lnum in range(1, 5)
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let line = getline(lnum)
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if line =~ '^#!'
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let line = substitute(line, '\v^#!\s*(\S+/env(\s+-\S+)*\s+)?', '', '')
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let exe = matchstr(line, '\m^\S*\ze')
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let args = split(matchstr(line, '\m^\S*\zs.*'))
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return { 'exe': exe, 'args': args }
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endif
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endfor
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return { 'exe': '', 'args': [] }
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endfunction " }}}2
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" Get the value of a variable. Allow local variables to override global ones.
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function! syntastic#util#var(name, ...) " {{{2
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return
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\ exists('b:syntastic_' . a:name) ? b:syntastic_{a:name} :
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\ exists('g:syntastic_' . a:name) ? g:syntastic_{a:name} :
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\ a:0 > 0 ? a:1 : ''
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endfunction " }}}2
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" Parse a version string. Return an array of version components.
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function! syntastic#util#parseVersion(version) " {{{2
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return map(split(matchstr( a:version, '\v^\D*\zs\d+(\.\d+)+\ze' ), '\m\.'), 'str2nr(v:val)')
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endfunction " }}}2
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" Run 'command' in a shell and parse output as a version string.
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" Returns an array of version components.
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function! syntastic#util#getVersion(command) " {{{2
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return syntastic#util#parseVersion(system(a:command))
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endfunction " }}}2
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" Verify that the 'installed' version is at least the 'required' version.
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"
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" 'installed' and 'required' must be arrays. If they have different lengths,
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" the "missing" elements will be assumed to be 0 for the purposes of checking.
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"
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" See http://semver.org for info about version numbers.
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function! syntastic#util#versionIsAtLeast(installed, required) " {{{2
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return syntastic#util#compareLexi(a:installed, a:required) >= 0
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endfunction " }}}2
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" Almost lexicographic comparison of two lists of integers. :) If lists
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" have different lengths, the "missing" elements are assumed to be 0.
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function! syntastic#util#compareLexi(a, b) " {{{2
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for idx in range(max([len(a:a), len(a:b)]))
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let a_element = str2nr(get(a:a, idx, 0))
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let b_element = str2nr(get(a:b, idx, 0))
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if a_element != b_element
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return a_element > b_element ? 1 : -1
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endif
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endfor
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" Everything matched, so it is at least the required version.
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return 0
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endfunction " }}}2
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" strwidth() was added in Vim 7.3; if it doesn't exist, we use strlen()
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" and hope for the best :)
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let s:width = function(exists('*strwidth') ? 'strwidth' : 'strlen')
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lockvar s:width
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function! syntastic#util#screenWidth(str, tabstop) " {{{2
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let chunks = split(a:str, "\t", 1)
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let width = s:width(chunks[-1])
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for c in chunks[:-2]
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let cwidth = s:width(c)
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let width += cwidth + a:tabstop - cwidth % a:tabstop
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endfor
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return width
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endfunction " }}}2
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"print as much of a:msg as possible without "Press Enter" prompt appearing
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function! syntastic#util#wideMsg(msg) " {{{2
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let old_ruler = &ruler
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let old_showcmd = &showcmd
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"This is here because it is possible for some error messages to
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"begin with \n which will cause a "press enter" prompt.
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let msg = substitute(a:msg, "\n", "", "g")
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"convert tabs to spaces so that the tabs count towards the window
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"width as the proper amount of characters
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let chunks = split(msg, "\t", 1)
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let msg = join(map(chunks[:-2], 'v:val . repeat(" ", &tabstop - s:width(v:val) % &tabstop)'), '') . chunks[-1]
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let msg = strpart(msg, 0, &columns - 1)
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set noruler noshowcmd
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call syntastic#util#redraw(0)
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echo msg
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let &ruler = old_ruler
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let &showcmd = old_showcmd
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endfunction " }}}2
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" Check whether a buffer is loaded, listed, and not hidden
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function! syntastic#util#bufIsActive(buffer) " {{{2
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" convert to number, or hell breaks loose
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let buf = str2nr(a:buffer)
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if !bufloaded(buf) || !buflisted(buf)
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return 0
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endif
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" get rid of hidden buffers
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for tab in range(1, tabpagenr('$'))
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if index(tabpagebuflist(tab), buf) >= 0
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return 1
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endif
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endfor
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return 0
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endfunction " }}}2
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" start in directory a:where and walk up the parent folders until it
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" finds a file matching a:what; return path to that file
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function! syntastic#util#findInParent(what, where) " {{{2
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let here = fnamemodify(a:where, ':p')
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let root = syntastic#util#Slash()
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if syntastic#util#isRunningWindows() && here[1] == ':'
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" The drive letter is an ever-green source of fun. That's because
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" we don't care about running syntastic on Amiga these days. ;)
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let root = fnamemodify(root, ':p')
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let root = here[0] . root[1:]
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endif
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let old = ''
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while here != ''
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let p = split(globpath(here, a:what), '\n')
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if !empty(p)
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return fnamemodify(p[0], ':p')
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elseif here ==? root || here ==? old
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break
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endif
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let old = here
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" we use ':h:h' rather than ':h' since ':p' adds a trailing '/'
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" if 'here' is a directory
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let here = fnamemodify(here, ':p:h:h')
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endwhile
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return ''
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endfunction " }}}2
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" Returns unique elements in a list
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function! syntastic#util#unique(list) " {{{2
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let seen = {}
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let uniques = []
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for e in a:list
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if !has_key(seen, e)
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let seen[e] = 1
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call add(uniques, e)
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endif
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endfor
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return uniques
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endfunction " }}}2
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" A less noisy shellescape()
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function! syntastic#util#shescape(string) " {{{2
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return a:string =~ '\m^[A-Za-z0-9_/.-]\+$' ? a:string : shellescape(a:string)
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endfunction " }}}2
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" A less noisy shellescape(expand())
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function! syntastic#util#shexpand(string) " {{{2
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return syntastic#util#shescape(expand(a:string))
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endfunction " }}}2
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" decode XML entities
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function! syntastic#util#decodeXMLEntities(string) " {{{2
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let str = a:string
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let str = substitute(str, '\m<', '<', 'g')
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let str = substitute(str, '\m>', '>', 'g')
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let str = substitute(str, '\m"', '"', 'g')
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let str = substitute(str, '\m'', "'", 'g')
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let str = substitute(str, '\m&', '\&', 'g')
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return str
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endfunction " }}}2
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function! syntastic#util#redraw(full) " {{{2
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if a:full
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redraw!
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else
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redraw
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endif
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endfunction " }}}2
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function! syntastic#util#dictFilter(errors, filter) " {{{2
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let rules = s:_translateFilter(a:filter)
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" call syntastic#log#debug(g:SyntasticDebugFilters, "applying filter:", rules)
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try
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call filter(a:errors, rules)
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catch /\m^Vim\%((\a\+)\)\=:E/
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let msg = matchstr(v:exception, '\m^Vim\%((\a\+)\)\=:\zs.*')
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call syntastic#log#error('quiet_messages: ' . msg)
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endtry
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endfunction " }}}2
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" Return a [high, low] list of integers, representing the time
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" (hopefully high resolution) since program start
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" TODO: This assumes reltime() returns a list of integers.
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function! syntastic#util#stamp() " {{{2
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return reltime(g:syntastic_start)
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endfunction " }}}2
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" }}}1
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" Private functions {{{1
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function! s:_translateFilter(filters) " {{{2
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let conditions = []
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for k in keys(a:filters)
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if type(a:filters[k]) == type([])
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call extend(conditions, map(copy(a:filters[k]), 's:_translateElement(k, v:val)'))
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else
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call add(conditions, s:_translateElement(k, a:filters[k]))
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endif
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endfor
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if conditions == []
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let conditions = ["1"]
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endif
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return len(conditions) == 1 ? conditions[0] : join(map(conditions, '"(" . v:val . ")"'), ' && ')
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endfunction " }}}2
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function! s:_translateElement(key, term) " {{{2
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if a:key ==? 'level'
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let ret = 'v:val["type"] !=? ' . string(a:term[0])
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elseif a:key ==? 'type'
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let ret = a:term ==? 'style' ? 'get(v:val, "subtype", "") !=? "style"' : 'has_key(v:val, "subtype")'
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elseif a:key ==? 'regex'
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let ret = 'v:val["text"] !~? ' . string(a:term)
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elseif a:key ==? 'file'
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let ret = 'bufname(str2nr(v:val["bufnr"])) !~# ' . string(a:term)
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else
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call syntastic#log#warn('quiet_messages: ignoring invalid key ' . strtrans(string(a:key)))
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let ret = "1"
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endif
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return ret
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endfunction " }}}2
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" }}}1
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let &cpo = s:save_cpo
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unlet s:save_cpo
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" vim: set sw=4 sts=4 et fdm=marker:
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