6.9.1. Conversion functions

     1: #line 77 "johab.ipk"
     2: from array import array
     3: 
     4: lead_first1 = 0x81
     5: lead_last1 = 0xC6
     6: lead_first2 = 0xC7
     7: lead_last2 = 0xFD
     8: trail_first1 = 0x41
     9: trail_first2 = 0xA1
    10: trail_last = 0xFE
    11: width1 = trail_last - trail_first1 + 1
    12: width2 = trail_last - trail_first2 + 1
    13: size1 = (lead_last1 - lead_first1 + 1) * width1
    14: size2 = (lead_last2 - lead_first1 + 1) * width2
    15: kscsize = size1 + size2
    16: 
    17: tou = array('H')
    18: filename = 'interscript/encoding/ksc5601-1992.dat'
    19: f = open(filename,'rb')
    20: tou.fromfile(f,kscsize)
    21: f.close()
    22: 
    23: def ksc5601_1992_to_unicode(ch):
    24:   hi = ch >> 8
    25:   lo = ch & 0xFF
    26:   if ch<=0x7F:
    27:     return ch
    28:   elif lead_first1 <= hi <= lead_last1 and trail_first1 <= lo <= trail_last:
    29:     return tou[(hi-lead_first1)*width1+lo-trail_first1]
    30:   elif lead_first2 <= hi <= lead_last2 and trail_first2 <= lo <= trail_last:
    31:     return tou[(hi-lead_first2)*width2+lo-trail_first2+size1]
    32:   else:
    33:     return 0xFFFF
    34: 
    35: def ksc5601_1992_to_utf8(s):
    36:   u = ''
    37:   i = 0
    38:   n = len(s)
    39:   while 1:
    40:     ch = s[i]
    41:     i = i + 1
    42:     ch = ch << 8 | s[i]
    43:     u = u + utf8(ksc5601_1992_to_unicode(ch))
    44:     i = i + 1
    45:     if i==n: break
    46:   return u
    47: