113 lines
2.8 KiB
VimL
113 lines
2.8 KiB
VimL
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if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'crystal') == -1
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let s:save_cpo = &cpo
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set cpo&vim
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function! s:_true() abort
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return 1
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endfunction
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function! s:_false() abort
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return 0
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endfunction
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function! s:_null() abort
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return 0
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endfunction
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let s:const = {}
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let s:const.true = function('s:_true')
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let s:const.false = function('s:_false')
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let s:const.null = function('s:_null')
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function! s:_resolve(val, prefix) abort
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let t = type(a:val)
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if t == type('')
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let m = matchlist(a:val, '^' . a:prefix . '\(null\|true\|false\)$')
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if !empty(m)
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return s:const[m[1]]
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endif
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elseif t == type([]) || t == type({})
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return map(a:val, 's:_resolve(v:val, a:prefix)')
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endif
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return a:val
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endfunction
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function! s:_vital_created(module) abort
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" define constant variables
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call extend(a:module, s:const)
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endfunction
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function! s:_vital_loaded(V) abort
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let s:V = a:V
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let s:string = s:V.import('Data.String')
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endfunction
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function! s:_vital_depends() abort
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return ['Data.String']
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endfunction
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" @vimlint(EVL102, 1, l:null)
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" @vimlint(EVL102, 1, l:true)
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" @vimlint(EVL102, 1, l:false)
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function! s:decode(json, ...) abort
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let settings = extend({
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\ 'use_token': 0,
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\}, get(a:000, 0, {}))
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let json = iconv(a:json, "utf-8", &encoding)
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let json = join(split(json, "\n"), '')
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let json = substitute(json, '\\u34;', '\\"', 'g')
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let json = substitute(json, '\\u\(\x\x\x\x\)', '\=s:string.nr2enc_char("0x".submatch(1))', 'g')
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if settings.use_token
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let prefix = '__Web.JSON__'
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while stridx(json, prefix) != -1
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let prefix .= '_'
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endwhile
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let [null,true,false] = map(['null','true','false'], 'prefix . v:val')
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sandbox return s:_resolve(eval(json), prefix)
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else
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let [null,true,false] = [s:const.null(),s:const.true(),s:const.false()]
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sandbox return eval(json)
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endif
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endfunction
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" @vimlint(EVL102, 0, l:null)
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" @vimlint(EVL102, 0, l:true)
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" @vimlint(EVL102, 0, l:false)
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function! s:encode(val) abort
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if type(a:val) == 0
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return a:val
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elseif type(a:val) == 1
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let json = '"' . escape(a:val, '\"') . '"'
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let json = substitute(json, "\r", '\\r', 'g')
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let json = substitute(json, "\n", '\\n', 'g')
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let json = substitute(json, "\t", '\\t', 'g')
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return iconv(json, &encoding, "utf-8")
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elseif type(a:val) == 2
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if s:const.true == a:val
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return 'true'
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elseif s:const.false == a:val
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return 'false'
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elseif s:const.null == a:val
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return 'null'
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else
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" backward compatibility
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return string(a:val)
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endif
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elseif type(a:val) == 3
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return '[' . join(map(copy(a:val), 's:encode(v:val)'), ',') . ']'
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elseif type(a:val) == 4
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return '{' . join(map(keys(a:val), 's:encode(v:val).":".s:encode(a:val[v:val])'), ',') . '}'
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else
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return string(a:val)
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endif
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endfunction
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let &cpo = s:save_cpo
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unlet s:save_cpo
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" vim:set et ts=2 sts=2 sw=2 tw=0:
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endif
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