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" Vim auto-load script
" Author: Peter Odding <peter@peterodding.com>
" Last Change: September 26, 2011
" URL: http://peterodding.com/code/vim/misc/
let s:windows_compatible = has('win32') || has('win64')
function! xolox#misc#path#which(...)
let extensions = s:windows_compatible ? split($PATHEXT, ';') : ['']
let matches = []
let checked = {}
for directory in split($PATH, s:windows_compatible ? ';' : ':')
let directory = xolox#misc#path#absolute(directory)
if !has_key(checked, directory)
if isdirectory(directory)
for program in a:000
for extension in extensions
let path = xolox#misc#path#merge(directory, program . extension)
if executable(path)
call add(matches, path)
endif
endfor
endfor
endif
let checked[directory] = 1
endif
endfor
return matches
endfunction
" Split a pathname into a list of path components.
function! xolox#misc#path#split(path)
if type(a:path) == type('')
if s:windows_compatible
return split(a:path, '[\/]\+')
else
let absolute = (a:path =~ '^/')
let segments = split(a:path, '/\+')
return absolute ? insert(segments, '/') : segments
endif
endif
return []
endfunction
" Join a list of path components into a pathname.
function! xolox#misc#path#join(parts)
if type(a:parts) == type([])
if !s:windows_compatible && a:parts[0] == '/'
return join(a:parts, '/')[1 : -1]
else
return join(a:parts, '/')
endif
endif
return ''
endfunction
" Canonicalize and resolve a pathname.
function! xolox#misc#path#absolute(path)
if type(a:path) == type('')
let path = fnamemodify(a:path, ':p')
" resolve() doesn't work when there's a trailing path separator.
if path =~ '/$'
let stripped_slash = 1
let path = substitute(path, '/$', '', '')
endif
let path = resolve(path)
" Restore the path separator after calling resolve().
if exists('stripped_slash') && path !~ '/$'
let path .= '/'
endif
return path
endif
return ''
endfunction
" Make an absolute pathname relative.
function! xolox#misc#path#relative(path, base)
let path = xolox#misc#path#split(a:path)
let base = xolox#misc#path#split(a:base)
while path != [] && base != [] && path[0] == base[0]
call remove(path, 0)
call remove(base, 0)
endwhile
let distance = repeat(['..'], len(base))
return xolox#misc#path#join(distance + path)
endfunction
" Join a directory and filename into a single pathname.
function! xolox#misc#path#merge(parent, child, ...)
" TODO Use isabs()!
if type(a:parent) == type('') && type(a:child) == type('')
if s:windows_compatible
let parent = substitute(a:parent, '[\\/]\+$', '', '')
let child = substitute(a:child, '^[\\/]\+', '', '')
return parent . '\' . child
else
let parent = substitute(a:parent, '/\+$', '', '')
let child = substitute(a:child, '^/\+', '', '')
return parent . '/' . child
endif
endif
return ''
endfunction
" Find the common prefix of path components in a list of pathnames.
function! xolox#misc#path#commonprefix(paths)
let common = xolox#misc#path#split(a:paths[0])
for path in a:paths
let index = 0
for segment in xolox#misc#path#split(path)
if len(common) <= index
break
elseif common[index] != segment
call remove(common, index, -1)
break
endif
let index += 1
endfor
endfor
return xolox#misc#path#join(common)
endfunction
" Encode a pathname so it can be used as a filename.
function! xolox#misc#path#encode(path)
let mask = s:windows_compatible ? '[*|\\/:"<>?%]' : '[\\/%]'
return substitute(a:path, mask, '\=printf("%%%x", char2nr(submatch(0)))', 'g')
endfunction
" Decode a pathname previously encoded with xolox#misc#path#encode().
function! xolox#misc#path#decode(encoded_path)
return substitute(a:encoded_path, '%\(\x\x\?\)', '\=nr2char("0x" . submatch(1))', 'g')
endfunction
" Check whether two pathnames point to the same file.
if s:windows_compatible
function! xolox#misc#path#equals(a, b)
return a:a ==? a:b || xolox#misc#path#absolute(a:a) ==? xolox#misc#path#absolute(a:b)
endfunction
else
function! xolox#misc#path#equals(a, b)
return a:a ==# a:b || xolox#misc#path#absolute(a:a) ==# xolox#misc#path#absolute(a:b)
endfunction
endif
" Check whether a path is relative.
function! xolox#misc#path#is_relative(path)
if a:path =~ '^\w\+://'
return 0
elseif s:windows_compatible
return a:path !~ '^\(\w:\|[\\/]\)'
else
return a:path !~ '^/'
endif
endfunction
" Create a temporary directory and return the path.
function! xolox#misc#path#tempdir()
if !exists('s:tempdir_counter')
let s:tempdir_counter = 1
endif
if exists('*mkdir')
if s:windows_compatible
let template = $TMP . '\vim_tempdir_'
elseif filewritable('/tmp') == 2
let template = '/tmp/vim_tempdir_'
endif
endif
if !exists('template')
throw "xolox#misc#path#tempdir() hasn't been implemented on your platform!"
endif
while 1
let directory = template . s:tempdir_counter
try
call mkdir(directory, '', 0700)
return directory
catch /\<E739\>/
" Keep looking for a non-existing directory.
endtry
let s:tempdir_counter += 1
endwhile
endfunction
" vim: ts=2 sw=2 et
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