mirror of
				https://github.com/neovim/neovim.git
				synced 2025-11-04 01:34:25 +00:00 
			
		
		
		
	datetime.datetime.timestamp does not exist on Windows and
datetime.datetiem.strftime('%s') is not supported, since '%s' is a POSIX
format.  Instead, use the recommended `calendar.timegm(obj.utctimetuple())`.
		
	
		
			
				
	
	
		
			833 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			VimL
		
	
	
	
	
	
			
		
		
	
	
			833 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			VimL
		
	
	
	
	
	
if exists('g:loaded_msgpack_autoload')
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  finish
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endif
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let g:loaded_msgpack_autoload = 1
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""
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" Check that given value is an integer. Respects |msgpack-special-dict|.
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function msgpack#is_int(v) abort
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  return type(a:v) == type(0) || (
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        \type(a:v) == type({}) && get(a:v, '_TYPE') is# v:msgpack_types.integer)
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endfunction
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""
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" Check that given value is an unsigned integer. Respects 
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" |msgpack-special-dict|.
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function msgpack#is_uint(v) abort
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  return msgpack#is_int(a:v) && (type(a:v) == type(0)
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                                \? a:v >= 0
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                                \: a:v._VAL[0] > 0)
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endfunction
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""
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" True if s:msgpack_init_python() function was already run.
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let s:msgpack_python_initialized = 0
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""
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" Cached return of s:msgpack_init_python() used when 
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" s:msgpack_python_initialized is true.
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let s:msgpack_python_type = 0
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""
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" Create Python functions that are necessary for work. Also defines functions 
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" s:msgpack_dict_strftime(format, timestamp) and s:msgpack_dict_strptime(format, 
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" string).
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"
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" @return Zero in case no Python is available, empty string if Python-2 is 
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"         available and string `"3"` if Python-3 is available.
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function s:msgpack_init_python() abort
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  if s:msgpack_python_initialized
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    return s:msgpack_python_type
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  endif
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  let s:msgpack_python_initialized = 1
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  for suf in (has('win32') ? ['3'] : ['', '3'])
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    try
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      execute 'python' . suf
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              \. "\n"
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              \. "def shada_dict_strftime():\n"
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              \. "  import datetime\n"
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              \. "  import vim\n"
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              \. "  fmt = vim.eval('a:format')\n"
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              \. "  timestamp = vim.eval('a:timestamp')\n"
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              \. "  timestamp = [int(v) for v in timestamp['_VAL']]\n"
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              \. "  timestamp = timestamp[0] * (timestamp[1] << 62\n"
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              \. "                              | timestamp[2] << 31\n"
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              \. "                              | timestamp[3])\n"
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              \. "  time = datetime.datetime.fromtimestamp(timestamp)\n"
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              \. "  return time.strftime(fmt)\n"
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              \. "def shada_dict_strptime():\n"
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              \. "  import calendar\n"
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              \. "  import datetime\n"
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              \. "  import vim\n"
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              \. "  fmt = vim.eval('a:format')\n"
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              \. "  timestr = vim.eval('a:string')\n"
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              \. "  timestamp = datetime.datetime.strptime(timestr, fmt)\n"
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              \. "  try:\n"
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              \. "    timestamp = int(timestamp.timestamp())\n"
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              \. "  except:\n"
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              \. "    try:\n"
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              \. "      timestamp = int(timestamp.strftime('%s'))\n"
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              \. "    except:\n"
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              \. "      timestamp = calendar.timegm(timestamp.utctimetuple())\n"
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              \. "  if timestamp > 2 ** 31:\n"
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              \. "    tsabs = abs(timestamp)\n"
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              \. "    return ('{\"_TYPE\": v:msgpack_types.integer,'\n"
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              \. "            + '\"_VAL\": [{sign},{v1},{v2},{v3}]}').format(\n"
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              \. "              sign=(1 if timestamp >= 0 else -1),\n"
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              \. "              v1=((tsabs >> 62) & 0x3),\n"
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              \. "              v2=((tsabs >> 31) & (2 ** 31 - 1)),\n"
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              \. "              v3=(tsabs & (2 ** 31 - 1)))\n"
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              \. "  else:\n"
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              \. "    return str(timestamp)\n"
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      execute  "function s:msgpack_dict_strftime(format, timestamp) abort\n"
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            \. "  return py" . suf . "eval('shada_dict_strftime()')\n"
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            \. "endfunction\n"
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            \. "function s:msgpack_dict_strptime(format, string)\n"
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            \. "  return eval(py" . suf . "eval('shada_dict_strptime()'))\n"
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            \. "endfunction\n"
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      let s:msgpack_python_type = suf
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      return suf
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    catch
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      continue
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    endtry
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  endfor
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  ""
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  " strftime() function for |msgpack-special-dict| values.
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  "
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  " @param[in]  format     String according to which time should be formatted.
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  " @param[in]  timestamp  Timestamp (seconds since epoch) to format.
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  "
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  " @return Formatted timestamp.
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  "
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  " @warning Without +python or +python3 this function does not work correctly. 
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  "          The VimL code contains “reference” implementation which does not 
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  "          really work because of precision loss.
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  function s:msgpack_dict_strftime(format, timestamp)
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    return msgpack#strftime(a:format, +msgpack#int_dict_to_str(a:timestamp))
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  endfunction
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  ""
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  " Function that parses given string according to given format.
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						|
  "
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						|
  " @param[in]  format  String according to which string was formatted.
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  " @param[in]  string  Time formatted according to format.
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  "
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  " @return Timestamp.
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  "
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  " @warning Without +python or +python3 this function is able to work only with 
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  "          31-bit (32-bit signed) timestamps that have format 
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  "          `%Y-%m-%dT%H:%M:%S`.
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  function s:msgpack_dict_strptime(format, string)
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    let fmt = '%Y-%m-%dT%H:%M:%S'
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    if a:format isnot# fmt
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      throw 'notimplemented-format:Only ' . fmt . ' format is supported'
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    endif
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    let match = matchlist(a:string,
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                         \'\v\C^(\d+)\-(\d+)\-(\d+)T(\d+)\:(\d+)\:(\d+)$')
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    if empty(match)
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      throw 'invalid-string:Given string does not match format ' . a:format
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    endif
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    call map(match, 'str2nr(v:val, 10)')
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    let [year, month, day, hour, minute, second] = match[1:6]
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    " Bisection start and end:
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    "
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    " Start: 365 days in year, 28 days in month, -12 hours tz offset.
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    let bisect_ts_start = (((((year - 1970) * 365
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                             \+ (month - 1) * 28
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                             \+ (day - 1)) * 24
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                            \+ hour - 12) * 60
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                           \+ minute) * 60
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                          \+ second)
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    if bisect_ts_start < 0
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      let bisect_ts_start = 0
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    endif
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    let start_string = strftime(fmt, bisect_ts_start)
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    if start_string is# a:string
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      return bisect_ts_start
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    endif
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    " End: 366 days in year, 31 day in month, +14 hours tz offset.
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    let bisect_ts_end = (((((year - 1970) * 366
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                           \+ (month - 1) * 31
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                           \+ (day - 1)) * 24
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                          \+ hour + 14) * 60
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                         \+ minute) * 60
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                        \+ second)
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    let end_string = strftime(fmt, bisect_ts_end)
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    if end_string is# a:string
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      return bisect_ts_end
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    endif
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						|
    if start_string ># end_string
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      throw 'internal-start-gt:Internal error: start > end'
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    endif
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						|
    if start_string is# end_string
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      throw printf('internal-start-eq:Internal error: '
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                  \. 'start(%u)==end(%u), but start(%s)!=string(%s)',
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                  \bisect_ts_start, bisect_ts_end,
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                  \string(start_string), string(a:string))
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    endif
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    if start_string ># a:string
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      throw 'internal-start-string:Internal error: start > string'
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    endif
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    if end_string <# a:string
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      throw 'internal-end-string:Internal error: end < string'
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    endif
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    while 1
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      let bisect_ts_middle = (bisect_ts_start/2) + (bisect_ts_end/2)
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      let middle_string = strftime(fmt, bisect_ts_middle)
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      if a:string is# middle_string
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        return bisect_ts_middle
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      elseif a:string ># middle_string
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        if bisect_ts_middle == bisect_ts_start
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          let bisect_ts_start += 1
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						|
        else
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						|
          let bisect_ts_start = bisect_ts_middle
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						|
        endif
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						|
      else
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						|
        if bisect_ts_middle == bisect_ts_end
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						|
          let bisect_ts_end -= 1
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						|
        else
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						|
          let bisect_ts_end = bisect_ts_middle
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						|
        endif
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						|
      endif
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						|
      if bisect_ts_start >= bisect_ts_end
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        throw 'not-found:Unable to find timestamp'
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      endif
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						|
    endwhile
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						|
  endfunction
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						|
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  return 0
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endfunction
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						|
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""
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						|
" Wrapper for strftime() that respects |msgpack-special-dict|. May actually use 
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" non-standard strftime() implementations for |msgpack-special-dict| values.
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"
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" @param[in]  format     Format string.
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						|
" @param[in]  timestamp  Formatted timestamp.
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function msgpack#strftime(format, timestamp) abort
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						|
  if type(a:timestamp) == type({})
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    call s:msgpack_init_python()
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						|
    return s:msgpack_dict_strftime(a:format, a:timestamp)
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						|
  else
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						|
    return strftime(a:format, a:timestamp)
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  endif
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						|
endfunction
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						|
 | 
						|
""
 | 
						|
" Parse string according to the format.
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						|
"
 | 
						|
" Requires +python available. If it is not then only supported format is 
 | 
						|
" `%Y-%m-%dT%H:%M:%S` because this is the format used by ShaDa plugin. Also in 
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						|
" this case bisection will be used (timestamps tried with strftime() up until 
 | 
						|
" result matches the string) and only 31-bit (signed 32-bit: with negative 
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						|
" timestamps being useless this leaves 31 bits) timestamps will be supported.
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						|
"
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						|
" @param[in]  format  Time format.
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						|
" @param[in]  string  Parsed time string. Must match given format.
 | 
						|
"
 | 
						|
" @return Timestamp. Possibly as |msgpack-special-dict|.
 | 
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function msgpack#strptime(format, string) abort
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						|
  call s:msgpack_init_python()
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  return s:msgpack_dict_strptime(a:format, a:string)
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						|
endfunction
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						|
 | 
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let s:MSGPACK_HIGHEST_BIT = 1
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let s:MSGPACK_HIGHEST_BIT_NR = 0
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while s:MSGPACK_HIGHEST_BIT * 2 > 0
 | 
						|
  let s:MSGPACK_HIGHEST_BIT = s:MSGPACK_HIGHEST_BIT * 2
 | 
						|
  let s:MSGPACK_HIGHEST_BIT_NR += 1
 | 
						|
endwhile
 | 
						|
 | 
						|
""
 | 
						|
" Shift given number by given amount of bits
 | 
						|
function s:shift(n, s) abort
 | 
						|
  if a:s == 0
 | 
						|
    return a:n
 | 
						|
  elseif a:s < 0
 | 
						|
    let ret = a:n
 | 
						|
    for _ in range(-a:s)
 | 
						|
      let ret = ret / 2
 | 
						|
    endfor
 | 
						|
    return ret
 | 
						|
  else
 | 
						|
    let ret = a:n
 | 
						|
    for i in range(a:s)
 | 
						|
      let new_ret = ret * 2
 | 
						|
      if new_ret < ret
 | 
						|
        " Overflow: remove highest bit
 | 
						|
        let ret = xor(s:MSGPACK_HIGHEST_BIT, ret) * 2
 | 
						|
      endif
 | 
						|
      let ret = new_ret
 | 
						|
    endfor
 | 
						|
    return ret
 | 
						|
  endif
 | 
						|
endfunction
 | 
						|
 | 
						|
let s:msgpack_mask_cache = {
 | 
						|
      \s:MSGPACK_HIGHEST_BIT_NR : s:MSGPACK_HIGHEST_BIT - 1}
 | 
						|
 | 
						|
""
 | 
						|
" Apply a mask where first m bits are ones and other are zeroes to a given 
 | 
						|
" number
 | 
						|
function s:mask1(n, m) abort
 | 
						|
  if a:m > s:MSGPACK_HIGHEST_BIT_NR + 1
 | 
						|
    let m = s:MSGPACK_HIGHEST_BIT_NR + 1
 | 
						|
  else
 | 
						|
    let m = a:m
 | 
						|
  endif
 | 
						|
  if !has_key(s:msgpack_mask_cache, m)
 | 
						|
    let p = 0
 | 
						|
    for _ in range(m)
 | 
						|
      let p = p * 2 + 1
 | 
						|
    endfor
 | 
						|
    let s:msgpack_mask_cache[m] = p
 | 
						|
  endif
 | 
						|
  return and(a:n, s:msgpack_mask_cache[m])
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Convert |msgpack-special-dict| that represents integer value to a string. Uses 
 | 
						|
" hexadecimal representation starting with 0x because it is the easiest to 
 | 
						|
" convert to.
 | 
						|
function msgpack#int_dict_to_str(v) abort
 | 
						|
  let v = a:v._VAL
 | 
						|
  " 64-bit number:
 | 
						|
  " 0000000001111111111222222222233333333334444444444555555555566666
 | 
						|
  " 1234567890123456789012345678901234567890123456789012345678901234
 | 
						|
  " Split in _VAL:
 | 
						|
  " 0000000001111111111222222222233 3333333344444444445555555555666 66
 | 
						|
  " 1234567890123456789012345678901 2345678901234567890123456789012 34
 | 
						|
  " Split by hex digits:
 | 
						|
  " 0000 0000 0111 1111 1112 2222 2222 2333 3333 3334 4444 4444 4555 5555 5556 6666
 | 
						|
  " 1234 5678 9012 3456 7890 1234 5678 9012 3456 7890 1234 5678 9012 3456 7890 1234
 | 
						|
  "
 | 
						|
  " Total split:
 | 
						|
  "                _VAL[3]                              _VAL[2]                      _VAL[1]
 | 
						|
  " ______________________________________  _______________________________________  __
 | 
						|
  " 0000 0000 0111 1111 1112 2222 2222 233  3 3333 3334 4444 4444 4555 5555 5556 66  66
 | 
						|
  " 1234 5678 9012 3456 7890 1234 5678 901  2 3456 7890 1234 5678 9012 3456 7890 12  34
 | 
						|
  " ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^
 | 
						|
  "                g4                    g3                  g2                    g1
 | 
						|
  " ********************************** ***  * ********************************** **  **
 | 
						|
  "                1                    2   3                4                   5   6
 | 
						|
  " 1: s:mask1(v[3], 28): first 28 bits of _VAL[3]
 | 
						|
  " 2: s:shift(v[3], -28): last 3 bits of _VAL[3]
 | 
						|
  " 3: s:mask1(v[2], 1): first bit of _VAL[2]
 | 
						|
  " 4: s:mask1(s:shift(v[2], -1), 28): bits 2 .. 29 of _VAL[2]
 | 
						|
  " 5: s:shift(v[2], -29): last 2 bits of _VAL[2]
 | 
						|
  " 6: s:shift(v[1], 2): _VAL[1]
 | 
						|
  let g4 = printf('%07x', s:mask1(v[3], 28))
 | 
						|
  let g3 = printf('%01x', or(s:shift(v[3], -28), s:shift(s:mask1(v[2], 1), 3)))
 | 
						|
  let g2 = printf('%07x', s:mask1(s:shift(v[2], -1), 28))
 | 
						|
  let g1 = printf('%01x', or(s:shift(v[2], -29), s:shift(v[1], 2)))
 | 
						|
  return ((v[0] < 0 ? '-' : '') . '0x' . g1 . g2 . g3 . g4)
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" True boolean value.
 | 
						|
let g:msgpack#true = {'_TYPE': v:msgpack_types.boolean, '_VAL': 1}
 | 
						|
lockvar! g:msgpack#true
 | 
						|
 | 
						|
""
 | 
						|
" False boolean value.
 | 
						|
let g:msgpack#false = {'_TYPE': v:msgpack_types.boolean, '_VAL': 0}
 | 
						|
lockvar! g:msgpack#false
 | 
						|
 | 
						|
""
 | 
						|
" NIL value.
 | 
						|
let g:msgpack#nil = {'_TYPE': v:msgpack_types.nil, '_VAL': 0}
 | 
						|
lockvar! g:msgpack#nil
 | 
						|
 | 
						|
""
 | 
						|
" Deduce type of |msgpack-special-dict|.
 | 
						|
"
 | 
						|
" @return zero if given dictionary is not special or name of the key in 
 | 
						|
"         v:msgpack_types dictionary.
 | 
						|
function msgpack#special_type(v) abort
 | 
						|
  if type(a:v) != type({}) || !has_key(a:v, '_TYPE')
 | 
						|
    return 0
 | 
						|
  endif
 | 
						|
  for [k, v] in items(v:msgpack_types)
 | 
						|
    if a:v._TYPE is v
 | 
						|
      return k
 | 
						|
    endif
 | 
						|
  endfor
 | 
						|
  return 0
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Mapping that maps type() output to type names.
 | 
						|
let s:MSGPACK_STANDARD_TYPES = {
 | 
						|
  \type(0): 'integer',
 | 
						|
  \type(0.0): 'float',
 | 
						|
  \type(''): 'binary',
 | 
						|
  \type([]): 'array',
 | 
						|
  \type({}): 'map',
 | 
						|
  \type(v:true): 'boolean',
 | 
						|
  \type(v:null): 'nil',
 | 
						|
\}
 | 
						|
 | 
						|
""
 | 
						|
" Deduce type of one of items returned by msgpackparse().
 | 
						|
"
 | 
						|
" @return Name of a key in v:msgpack_types.
 | 
						|
function msgpack#type(v) abort
 | 
						|
  let special_type = msgpack#special_type(a:v)
 | 
						|
  if special_type is 0
 | 
						|
    return s:MSGPACK_STANDARD_TYPES[type(a:v)]
 | 
						|
  endif
 | 
						|
  return special_type
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump nil value.
 | 
						|
function s:msgpack_dump_nil(v) abort
 | 
						|
  return 'NIL'
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump boolean value.
 | 
						|
function s:msgpack_dump_boolean(v) abort
 | 
						|
  return (a:v is v:true || (a:v isnot v:false && a:v._VAL)) ? 'TRUE' : 'FALSE'
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump integer msgpack value.
 | 
						|
function s:msgpack_dump_integer(v) abort
 | 
						|
  if type(a:v) == type({})
 | 
						|
    return msgpack#int_dict_to_str(a:v)
 | 
						|
  else
 | 
						|
    return string(a:v)
 | 
						|
  endif
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump floating-point value.
 | 
						|
function s:msgpack_dump_float(v) abort
 | 
						|
  return substitute(string(type(a:v) == type({}) ? a:v._VAL : a:v),
 | 
						|
                   \'\V\^\(-\)\?str2float(''\(inf\|nan\)'')\$', '\1\2', '')
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump |msgpack-special-dict| that represents a string. If any additional 
 | 
						|
" parameter is given then it dumps binary string.
 | 
						|
function s:msgpack_dump_string(v, ...) abort
 | 
						|
  let ret = [a:0 ? '"' : '="']
 | 
						|
  for v in a:v._VAL
 | 
						|
    call add(
 | 
						|
          \ret,
 | 
						|
          \substitute(
 | 
						|
            \substitute(v, '["\\]', '\\\0', 'g'),
 | 
						|
            \'\n', '\\0', 'g'))
 | 
						|
    call add(ret, '\n')
 | 
						|
  endfor
 | 
						|
  let ret[-1] = '"'
 | 
						|
  return join(ret, '')
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump binary string.
 | 
						|
function s:msgpack_dump_binary(v) abort
 | 
						|
  if type(a:v) == type({})
 | 
						|
    return s:msgpack_dump_string(a:v, 1)
 | 
						|
  else
 | 
						|
    return s:msgpack_dump_string({'_VAL': split(a:v, "\n", 1)}, 1)
 | 
						|
  endif
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump array value.
 | 
						|
function s:msgpack_dump_array(v) abort
 | 
						|
  let val = type(a:v) == type({}) ? a:v._VAL : a:v
 | 
						|
  return '[' . join(map(val[:], 'msgpack#string(v:val)'), ', ') . ']'
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump dictionary value.
 | 
						|
function s:msgpack_dump_map(v) abort
 | 
						|
  let ret = ['{']
 | 
						|
  if msgpack#special_type(a:v) is 0
 | 
						|
    for [k, v] in items(a:v)
 | 
						|
      let ret += [s:msgpack_dump_string({'_VAL': split(k, "\n", 1)}),
 | 
						|
                 \': ',
 | 
						|
                 \msgpack#string(v),
 | 
						|
                 \', ']
 | 
						|
      unlet v
 | 
						|
    endfor
 | 
						|
    if !empty(a:v)
 | 
						|
      call remove(ret, -1)
 | 
						|
    endif
 | 
						|
  else
 | 
						|
    for [k, v] in sort(copy(a:v._VAL))
 | 
						|
      let ret += [msgpack#string(k),
 | 
						|
                 \': ',
 | 
						|
                 \msgpack#string(v),
 | 
						|
                 \', ']
 | 
						|
      unlet k
 | 
						|
      unlet v
 | 
						|
    endfor
 | 
						|
    if !empty(a:v._VAL)
 | 
						|
      call remove(ret, -1)
 | 
						|
    endif
 | 
						|
  endif
 | 
						|
  let ret += ['}']
 | 
						|
  return join(ret, '')
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Dump extension value.
 | 
						|
function s:msgpack_dump_ext(v) abort
 | 
						|
  return printf('+(%i)%s', a:v._VAL[0],
 | 
						|
               \s:msgpack_dump_string({'_VAL': a:v._VAL[1]}, 1))
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Convert msgpack object to a string, like string() function does. Result of the 
 | 
						|
" conversion may be passed to msgpack#eval().
 | 
						|
function msgpack#string(v) abort
 | 
						|
  if type(a:v) == type({})
 | 
						|
    let type = msgpack#special_type(a:v)
 | 
						|
    if type is 0
 | 
						|
      let type = 'map'
 | 
						|
    endif
 | 
						|
  else
 | 
						|
    let type = get(s:MSGPACK_STANDARD_TYPES, type(a:v), 0)
 | 
						|
    if type is 0
 | 
						|
      throw printf('msgpack:invtype: Unable to convert value %s', string(a:v))
 | 
						|
    endif
 | 
						|
  endif
 | 
						|
  return s:msgpack_dump_{type}(a:v)
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Copy msgpack object like deepcopy() does, but leave types intact
 | 
						|
function msgpack#deepcopy(obj) abort
 | 
						|
  if type(a:obj) == type([])
 | 
						|
    return map(copy(a:obj), 'msgpack#deepcopy(v:val)')
 | 
						|
  elseif type(a:obj) == type({})
 | 
						|
    let special_type = msgpack#special_type(a:obj)
 | 
						|
    if special_type is 0
 | 
						|
      return map(copy(a:obj), 'msgpack#deepcopy(v:val)')
 | 
						|
    else
 | 
						|
      return {
 | 
						|
        \'_TYPE': v:msgpack_types[special_type],
 | 
						|
        \'_VAL': msgpack#deepcopy(a:obj._VAL)
 | 
						|
      \}
 | 
						|
    endif
 | 
						|
  else
 | 
						|
    return copy(a:obj)
 | 
						|
  endif
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Convert an escaped character to needed value
 | 
						|
function s:msgpack_eval_str_sub(ch) abort
 | 
						|
  if a:ch is# 'n'
 | 
						|
    return '", "'
 | 
						|
  elseif a:ch is# '0'
 | 
						|
    return '\n'
 | 
						|
  else
 | 
						|
    return '\' . a:ch
 | 
						|
  endif
 | 
						|
endfunction
 | 
						|
 | 
						|
let s:MSGPACK_SPECIAL_OBJECTS = {
 | 
						|
  \'NIL': '{''_TYPE'': v:msgpack_types.nil, ''_VAL'': 0}',
 | 
						|
  \'TRUE': '{''_TYPE'': v:msgpack_types.boolean, ''_VAL'': 1}',
 | 
						|
  \'FALSE': '{''_TYPE'': v:msgpack_types.boolean, ''_VAL'': 0}',
 | 
						|
  \'nan': '(-(1.0/0.0-1.0/0.0))',
 | 
						|
  \'inf': '(1.0/0.0)',
 | 
						|
\}
 | 
						|
 | 
						|
""
 | 
						|
" Convert msgpack object dumped by msgpack#string() to a VimL object suitable 
 | 
						|
" for msgpackdump().
 | 
						|
"
 | 
						|
" @param[in]  s             String to evaluate.
 | 
						|
" @param[in]  special_objs  Additional special objects, in the same format as 
 | 
						|
"                           s:MSGPACK_SPECIAL_OBJECTS.
 | 
						|
"
 | 
						|
" @return Any value that msgpackparse() may return.
 | 
						|
function msgpack#eval(s, special_objs) abort
 | 
						|
  let s = a:s
 | 
						|
  let expr = []
 | 
						|
  let context = []
 | 
						|
  while !empty(s)
 | 
						|
    let s = substitute(s, '^\s*', '', '')
 | 
						|
    if s[0] =~# '\v^\h$'
 | 
						|
      let name = matchstr(s, '\v\C^\w+')
 | 
						|
      if has_key(s:MSGPACK_SPECIAL_OBJECTS, name)
 | 
						|
        call add(expr, s:MSGPACK_SPECIAL_OBJECTS[name])
 | 
						|
      elseif has_key(a:special_objs, name)
 | 
						|
        call add(expr, a:special_objs[name])
 | 
						|
      else
 | 
						|
        throw 'name-unknown:Unknown name ' . name . ': ' . s
 | 
						|
      endif
 | 
						|
      let s = s[len(name):]
 | 
						|
    elseif (s[0] is# '-' && s[1] =~# '\v^\d$') || s[0] =~# '\v^\d$'
 | 
						|
      let sign = 1
 | 
						|
      if s[0] is# '-'
 | 
						|
        let s = s[1:]
 | 
						|
        let sign = -1
 | 
						|
      endif
 | 
						|
      if s[0:1] is# '0x'
 | 
						|
        " See comment in msgpack#int_dict_to_str().
 | 
						|
        let s = s[2:]
 | 
						|
        let hexnum = matchstr(s, '\v\C^\x+')
 | 
						|
        if empty(hexnum)
 | 
						|
          throw '0x-empty:Must have number after 0x: ' . s
 | 
						|
        elseif len(hexnum) > 16
 | 
						|
          throw '0x-long:Must have at most 16 hex digits: ' . s
 | 
						|
        endif
 | 
						|
        let s = s[len(hexnum):]
 | 
						|
        let hexnum = repeat('0', 16 - len(hexnum)) . hexnum
 | 
						|
        let g1 = str2nr(hexnum[0], 16)
 | 
						|
        let g2 = str2nr(hexnum[1:7], 16)
 | 
						|
        let g3 = str2nr(hexnum[8], 16)
 | 
						|
        let g4 = str2nr(hexnum[9:15], 16)
 | 
						|
        let v1 = s:shift(g1, -2)
 | 
						|
        let v2 = or(or(s:shift(s:mask1(g1, 2), 29), s:shift(g2, 1)),
 | 
						|
                   \s:mask1(s:shift(g3, -3), 1))
 | 
						|
        let v3 = or(s:shift(s:mask1(g3, 3), 28), g4)
 | 
						|
        call add(expr, printf('{''_TYPE'': v:msgpack_types.integer, '.
 | 
						|
                             \'''_VAL'': [%i, %u, %u, %u]}',
 | 
						|
                             \sign, v1, v2, v3))
 | 
						|
      else
 | 
						|
        let num = matchstr(s, '\v\C^\d+')
 | 
						|
        let s = s[len(num):]
 | 
						|
        if sign == -1
 | 
						|
          call add(expr, '-')
 | 
						|
        endif
 | 
						|
        call add(expr, num)
 | 
						|
        if s[0] is# '.'
 | 
						|
          let dec = matchstr(s, '\v\C^\.\d+%(e[+-]?\d+)?')
 | 
						|
          if empty(dec)
 | 
						|
            throw '0.-nodigits:Decimal dot must be followed by digit(s): ' . s
 | 
						|
          endif
 | 
						|
          let s = s[len(dec):]
 | 
						|
          call add(expr, dec)
 | 
						|
        endif
 | 
						|
      endif
 | 
						|
    elseif s =~# '\v^\-%(inf|nan)'
 | 
						|
      call add(expr, '-')
 | 
						|
      call add(expr, s:MSGPACK_SPECIAL_OBJECTS[s[1:3]])
 | 
						|
      let s = s[4:]
 | 
						|
    elseif stridx('="+', s[0]) != -1
 | 
						|
      let match = matchlist(s, '\v\C^(\=|\+\((\-?\d+)\)|)(\"%(\\.|[^\\"]+)*\")')
 | 
						|
      if empty(match)
 | 
						|
        throw '"-invalid:Invalid string: ' . s
 | 
						|
      endif
 | 
						|
      call add(expr, '{''_TYPE'': v:msgpack_types.')
 | 
						|
      if empty(match[1])
 | 
						|
        call add(expr, 'binary')
 | 
						|
      elseif match[1] is# '='
 | 
						|
        call add(expr, 'string')
 | 
						|
      else
 | 
						|
        call add(expr, 'ext')
 | 
						|
      endif
 | 
						|
      call add(expr, ', ''_VAL'': [')
 | 
						|
      if match[1][0] is# '+'
 | 
						|
        call add(expr, match[2] . ', [')
 | 
						|
      endif
 | 
						|
      call add(expr, substitute(match[3], '\v\C\\(.)',
 | 
						|
                               \'\=s:msgpack_eval_str_sub(submatch(1))', 'g'))
 | 
						|
      if match[1][0] is# '+'
 | 
						|
        call add(expr, ']')
 | 
						|
      endif
 | 
						|
      call add(expr, ']}')
 | 
						|
      let s = s[len(match[0]):]
 | 
						|
    elseif s[0] is# '{'
 | 
						|
      call add(context, 'map')
 | 
						|
      call add(expr, '{''_TYPE'': v:msgpack_types.map, ''_VAL'': [')
 | 
						|
      call add(expr, '[')
 | 
						|
      let s = s[1:]
 | 
						|
    elseif s[0] is# '['
 | 
						|
      call add(context, 'array')
 | 
						|
      call add(expr, '[')
 | 
						|
      let s = s[1:]
 | 
						|
    elseif s[0] is# ':'
 | 
						|
      call add(expr, ',')
 | 
						|
      let s = s[1:]
 | 
						|
    elseif s[0] is# ','
 | 
						|
      if context[-1] is# 'array'
 | 
						|
        call add(expr, ',')
 | 
						|
      else
 | 
						|
        call add(expr, '], [')
 | 
						|
      endif
 | 
						|
      let s = s[1:]
 | 
						|
    elseif s[0] is# ']'
 | 
						|
      call remove(context, -1)
 | 
						|
      call add(expr, ']')
 | 
						|
      let s = s[1:]
 | 
						|
    elseif s[0] is# '}'
 | 
						|
      call remove(context, -1)
 | 
						|
      if expr[-1] is# "\x5B"
 | 
						|
        call remove(expr, -1)
 | 
						|
      else
 | 
						|
        call add(expr, ']')
 | 
						|
      endif
 | 
						|
      call add(expr, ']}')
 | 
						|
      let s = s[1:]
 | 
						|
    elseif s[0] is# ''''
 | 
						|
      let char = matchstr(s, '\v\C^\''\zs%(\\\d+|.)\ze\''')
 | 
						|
      if empty(char)
 | 
						|
        throw 'char-invalid:Invalid integer character literal format: ' . s
 | 
						|
      endif
 | 
						|
      if char[0] is# '\'
 | 
						|
        call add(expr, +char[1:])
 | 
						|
      else
 | 
						|
        call add(expr, char2nr(char))
 | 
						|
      endif
 | 
						|
      let s = s[len(char) + 2:]
 | 
						|
    else
 | 
						|
      throw 'unknown:Invalid non-space character: ' . s
 | 
						|
    endif
 | 
						|
  endwhile
 | 
						|
  if empty(expr)
 | 
						|
    throw 'empty:Parsed string is empty'
 | 
						|
  endif
 | 
						|
  return eval(join(expr, ''))
 | 
						|
endfunction
 | 
						|
 | 
						|
""
 | 
						|
" Check whether two msgpack values are equal
 | 
						|
function msgpack#equal(a, b)
 | 
						|
  let atype = msgpack#type(a:a)
 | 
						|
  let btype = msgpack#type(a:b)
 | 
						|
  if atype isnot# btype
 | 
						|
    return 0
 | 
						|
  endif
 | 
						|
  let aspecial = msgpack#special_type(a:a)
 | 
						|
  let bspecial = msgpack#special_type(a:b)
 | 
						|
  if aspecial is# bspecial
 | 
						|
    if aspecial is# 0
 | 
						|
      if type(a:a) == type({})
 | 
						|
        if len(a:a) != len(a:b)
 | 
						|
          return 0
 | 
						|
        endif
 | 
						|
        if !empty(filter(keys(a:a), '!has_key(a:b, v:val)'))
 | 
						|
          return 0
 | 
						|
        endif
 | 
						|
        for [k, v] in items(a:a)
 | 
						|
          if !msgpack#equal(v, a:b[k])
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
          unlet v
 | 
						|
        endfor
 | 
						|
        return 1
 | 
						|
      elseif type(a:a) == type([])
 | 
						|
        if len(a:a) != len(a:b)
 | 
						|
          return 0
 | 
						|
        endif
 | 
						|
        let i = 0
 | 
						|
        for asubval in a:a
 | 
						|
          if !msgpack#equal(asubval, a:b[i])
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
          let i += 1
 | 
						|
          unlet asubval
 | 
						|
        endfor
 | 
						|
        return 1
 | 
						|
      elseif type(a:a) == type(0.0)
 | 
						|
        return (a:a == a:a ? a:a == a:b : string(a:a) ==# string(a:b))
 | 
						|
      else
 | 
						|
        return a:a ==# a:b
 | 
						|
      endif
 | 
						|
    elseif aspecial is# 'map' || aspecial is# 'array'
 | 
						|
      if len(a:a._VAL) != len(a:b._VAL)
 | 
						|
        return 0
 | 
						|
      endif
 | 
						|
      let alist = aspecial is# 'map' ? sort(copy(a:a._VAL)) : a:a._VAL
 | 
						|
      let blist = bspecial is# 'map' ? sort(copy(a:b._VAL)) : a:b._VAL
 | 
						|
      let i = 0
 | 
						|
      for asubval in alist
 | 
						|
        let bsubval = blist[i]
 | 
						|
        if aspecial is# 'map'
 | 
						|
          if !(msgpack#equal(asubval[0], bsubval[0])
 | 
						|
              \&& msgpack#equal(asubval[1], bsubval[1]))
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
        else
 | 
						|
          if !msgpack#equal(asubval, bsubval)
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
        endif
 | 
						|
        let i += 1
 | 
						|
        unlet asubval
 | 
						|
        unlet bsubval
 | 
						|
      endfor
 | 
						|
      return 1
 | 
						|
    elseif aspecial is# 'nil'
 | 
						|
      return 1
 | 
						|
    elseif aspecial is# 'float'
 | 
						|
      return (a:a._VAL == a:a._VAL
 | 
						|
             \? (a:a._VAL == a:b._VAL)
 | 
						|
             \: (string(a:a._VAL) ==# string(a:b._VAL)))
 | 
						|
    else
 | 
						|
      return a:a._VAL ==# a:b._VAL
 | 
						|
    endif
 | 
						|
  else
 | 
						|
    if atype is# 'array'
 | 
						|
      let a = aspecial is 0 ? a:a : a:a._VAL
 | 
						|
      let b = bspecial is 0 ? a:b : a:b._VAL
 | 
						|
      return msgpack#equal(a, b)
 | 
						|
    elseif atype is# 'binary'
 | 
						|
      let a = (aspecial is 0 ? split(a:a, "\n", 1) : a:a._VAL)
 | 
						|
      let b = (bspecial is 0 ? split(a:b, "\n", 1) : a:b._VAL)
 | 
						|
      return a ==# b
 | 
						|
    elseif atype is# 'map'
 | 
						|
      if aspecial is 0
 | 
						|
        let akeys = copy(a:a)
 | 
						|
        if len(a:b._VAL) != len(akeys)
 | 
						|
          return 0
 | 
						|
        endif
 | 
						|
        for [k, v] in a:b._VAL
 | 
						|
          if msgpack#type(k) isnot# 'string'
 | 
						|
            " Non-special mapping cannot have non-string keys
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
          if (empty(k._VAL)
 | 
						|
             \|| k._VAL ==# [""]
 | 
						|
             \|| !empty(filter(copy(k._VAL), 'stridx(v:val, "\n") != -1')))
 | 
						|
            " Non-special mapping cannot have zero byte in key or an empty key
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
          let kstr = join(k._VAL, "\n")
 | 
						|
          if !has_key(akeys, kstr)
 | 
						|
            " Protects from both missing and duplicate keys
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
          if !msgpack#equal(akeys[kstr], v)
 | 
						|
            return 0
 | 
						|
          endif
 | 
						|
          call remove(akeys, kstr)
 | 
						|
          unlet k
 | 
						|
          unlet v
 | 
						|
        endfor
 | 
						|
        return 1
 | 
						|
      else
 | 
						|
        return msgpack#equal(a:b, a:a)
 | 
						|
      endif
 | 
						|
    elseif atype is# 'float'
 | 
						|
      let a = aspecial is 0 ? a:a : a:a._VAL
 | 
						|
      let b = bspecial is 0 ? a:b : a:b._VAL
 | 
						|
      return (a == a ? a == b : string(a) ==# string(b))
 | 
						|
    elseif atype is# 'integer'
 | 
						|
      if aspecial is 0
 | 
						|
        let sign = a:a >= 0 ? 1 : -1
 | 
						|
        let a = sign * a:a
 | 
						|
        let v1 = s:mask1(s:shift(a, -62), 2)
 | 
						|
        let v2 = s:mask1(s:shift(a, -31), 31)
 | 
						|
        let v3 = s:mask1(a, 31)
 | 
						|
        return [sign, v1, v2, v3] == a:b._VAL
 | 
						|
      else
 | 
						|
        return msgpack#equal(a:b, a:a)
 | 
						|
      endif
 | 
						|
    else
 | 
						|
      throw printf('internal-invalid-type: %s == %s, but special %s /= %s',
 | 
						|
                  \atype, btype, aspecial, bspecial)
 | 
						|
    endif
 | 
						|
  endif
 | 
						|
endfunction
 |