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ultimate-vim/sources_non_forked/tlib/autoload/tlib/arg.vim
2012-08-16 23:41:25 -04:00

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" arg.vim
" @Author: Tom Link (micathom AT gmail com?subject=[vim])
" @Website: http://www.vim.org/account/profile.php?user_id=4037
" @License: GPL (see http://www.gnu.org/licenses/gpl.txt)
" @Created: 2007-06-30.
" @Last Change: 2009-02-15.
" @Revision: 0.0.50
if &cp || exists("loaded_tlib_arg_autoload")
finish
endif
let loaded_tlib_arg_autoload = 1
" :def: function! tlib#arg#Get(n, var, ?default="", ?test='')
" Set a positional argument from a variable argument list.
" See tlib#string#RemoveBackslashes() for an example.
function! tlib#arg#Get(n, var, ...) "{{{3
let default = a:0 >= 1 ? a:1 : ''
let atest = a:0 >= 2 ? a:2 : ''
" TLogVAR default, atest
if !empty(atest)
let atest = ' && (a:'. a:n .' '. atest .')'
endif
let test = printf('a:0 >= %d', a:n) . atest
return printf('let %s = %s ? a:%d : %s', a:var, test, a:n, string(default))
endf
" :def: function! tlib#arg#Let(list, ?default='')
" Set a positional arguments from a variable argument list.
" See tlib#input#List() for an example.
function! tlib#arg#Let(list, ...) "{{{3
let default = a:0 >= 1 ? a:1 : ''
let list = map(copy(a:list), 'type(v:val) == 3 ? v:val : [v:val, default]')
let args = map(range(1, len(list)), 'call("tlib#arg#Get", [v:val] + list[v:val - 1])')
return join(args, ' | ')
endf
" :def: function! tlib#arg#Key(dict, list, ?default='')
" See |:TKeyArg|.
function! tlib#arg#Key(list, ...) "{{{3
let default = a:0 >= 1 ? a:1 : ''
let dict = a:list[0]
let list = map(copy(a:list[1:-1]), 'type(v:val) == 3 ? v:val : [v:val, default]')
let args = map(list, '"let ". v:val[0] ." = ". string(get(dict, v:val[0], v:val[1]))')
" TLogVAR dict, list, args
return join(args, ' | ')
endf
" :def: function! tlib#arg#StringAsKeyArgs(string, ?keys=[], ?evaluate=0)
function! tlib#arg#StringAsKeyArgs(string, ...) "{{{1
TVarArg ['keys', {}], ['evaluate', 0]
let keyargs = {}
let args = split(a:string, '\\\@<! ')
let arglist = map(args, 'matchlist(v:val, ''^\(\w\+\):\(.*\)$'')')
" TLogVAR a:string, args, arglist
for matchlist in arglist
if len(matchlist) < 3
throw 'Malformed key arguments: '. string(matchlist) .' in '. a:string
endif
let [match, key, val; rest] = matchlist
if empty(keys) || has_key(keys, key)
let val = substitute(val, '\\\\', '\\', 'g')
if evaluate
let val = eval(val)
endif
let keyargs[key] = val
else
echom 'Unknown key: '. key .'='. val
endif
endfor
return keyargs
endf
""" Command line {{{1
" :def: function! tlib#arg#Ex(arg, ?chars='%#! ')
" Escape some characters in a string.
"
" Use |fnamescape()| if available.
"
" EXAMPLES: >
" exec 'edit '. tlib#arg#Ex('foo%#bar.txt')
function! tlib#arg#Ex(arg, ...) "{{{3
if exists('*fnameescape') && a:0 == 0
return fnameescape(a:arg)
else
" let chars = '%# \'
let chars = '%#! '
if a:0 >= 1
let chars .= a:1
endif
return escape(a:arg, chars)
endif
endf