43 lines
1.2 KiB
VimL
43 lines
1.2 KiB
VimL
" Author: w0rp <devw0rp@gmail.com>
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" Description: This module implements a function for parsing arguments for
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" commands.
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" Given a list of valid arguments like ['foo', 'bar'] and a string to parse,
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" parse the arguments from the string and return [parsed_args, remainder].
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"
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" Arguments must be prefixed in the string with a single minus (-), and a
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" double minus (--) denotes the end of arguments.
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function! ale#args#Parse(arg_list, string) abort
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let l:parsed = {}
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let l:end_of_args = 0
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let l:word_list = split(a:string, ' ')
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let l:index = 0
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while l:index < len(l:word_list)
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let l:word = l:word_list[l:index]
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if l:word[:0] is# '-'
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let l:index += 1
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if l:word is# '--'
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break
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endif
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let l:arg = l:word[1:]
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if index(a:arg_list, l:arg) >= 0
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let l:parsed[l:arg] = ''
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else
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throw 'Invalid argument: ' . l:word
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endif
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elseif l:word is# ''
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let l:index += 1
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else
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break
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endif
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endwhile
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let l:new_string = join(l:word_list[l:index :], ' ')
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return [l:parsed, l:new_string]
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endfunction
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