function! SpaceVim#api#iconv#codecs#utf16#import() abort return s:utf16 endfunction let s:base = SpaceVim#api#iconv#codecs#base#import() let s:utf16 = {} let s:utf16.Codec = {} call extend(s:utf16.Codec, s:base.Codec) let s:utf16.Codec.encoding = "UTF-16" let s:utf16.Codec.istate = 0 let s:utf16.Codec.ostate = 0 function! s:utf16.Codec.mbtowc(input, start) if a:start + 1 >= len(a:input) return self.error('UnicodeDecodeError', 'incomplete', a:input, a:start, len(a:input) - 1) endif let wc = (self.istate \ ? a:input[a:start + 0] + (a:input[a:start + 1] * 0x100) \ : (a:input[a:start + 0] * 0x100) + a:input[a:start + 1]) if wc == 0xfeff return [[], a:start + 2] elseif wc == 0xfffe let self.istate = !self.istate return [[], a:start + 2] elseif wc >= 0xd800 && wc < 0xdc00 if a:start + 3 >= len(a:input) return self.error('UnicodeDecodeError', 'incomplete', a:input, a:start, len(a:input) - 1) endif let wc2 = (self.istate \ ? a:input[a:start + 2] + (a:input[a:start + 3] * 0x100) \ : (a:input[a:start + 2] * 0x100) + a:input[a:start + 3]) if !(wc2 >= 0xdc00 && wc2 < 0xe000) return self.error('UnicodeDecodeError', 'invalid', a:input, a:start, a:start + 3) endif let pwc = 0x10000 + ((wc - 0xd800) * 0x400) + (wc2 - 0xdc00) return [[pwc], a:start + 4] elseif wc >= 0xdc00 && wc < 0xe000 return self.error('UnicodeDecodeError', 'invalid', a:input, a:start, a:start + 1) else return [[wc], a:start + 2] endif endfunction function! s:utf16.Codec.wctomb(input, start) let res = [] let wc = a:input[a:start] if wc != 0xfffe && !(wc >= 0xd800 && wc < 0xe000) if !self.ostate call add(res, 0xFE) call add(res, 0xFF) endif if wc < 0x10000 call add(res, wc / 0x100) call add(res, wc % 0x100) let self.ostate = 1 return [res, a:start + 1] elseif wc < 0x110000 let wc1 = 0xd800 + ((wc - 0x10000) / 0x400) let wc2 = 0xdc00 + ((wc - 0x10000) % 0x400) call add(res, wc1 / 0x100) call add(res, wc1 % 0x100) call add(res, wc2 / 0x100) call add(res, wc2 % 0x100) let self.ostate = 1 return [res, a:start + 1] endif endif return self.error('UnicodeEncodeError', 'invalid', a:input, a:start, a:start) endfunction