kc3-lang/libxml2/tools/genEscape.py

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• Hash : 2adcde39
  Author :
  Date : 2024-07-12T16:25:05
  

  save: Optimize xmlSerializeText
  
  Use lookup tables.
  

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• tools/genEscape.py

• #!/usr/bin/env python3
  
  entities = [
      [ '',   '�' ],
      [ '\t', '	' ],
      [ '\n', '
' ],
      [ '\r', '
' ],
      [ '"',  '"' ],
      [ '&',  '&' ],
      [ '<',  '&lt;' ],
      [ '>',  '&gt;' ],
  ]
  
  ### xmlEscapeContent
  
  offset = [ None ] * 128
  pos = 0
  r = ''
  
  for rec in entities:
      char, repl = rec
  
      if char:
          offset[ord(char)] = pos
  
      if pos % 12 == 0: r += '\n    '
      else: r += ' '
      r += '%3d,' % len(repl)
      pos += 1
  
      for c in repl:
          if pos % 12 == 0: r += '\n    '
          else: r += ' '
          r += "'%s'," % c
          pos += 1
  
  print('static const char xmlEscapeContent[] = {%s\n};\n' % r)
  
  ### xmlEscapeTab
  
  escape = '\r&<>'
  r = ''
  
  for i in range(0x80):
  
      if chr(i) in escape:
          v = offset[i]
      elif i != 9 and i != 10 and i < 20:
          v = 0
      else:
          v = -1
  
      if i % 16 == 0: r += '\n    '
      else: r += ' '
      r += '%2d,' % v
  
  print('static const char xmlEscapeTab[128] = {%s\n};\n' % r)
  
  ### xmlEscapeTabAttr
  
  escape = '\t\n\r"&<>'
  r = ''
  
  for i in range(0x80):
  
      if chr(i) in escape:
          v = offset[i]
      elif i != 9 and i != 10 and i < 20:
          v = 0
      else:
          v = -1
  
      if i % 16 == 0: r += '\n    '
      else: r += ' '
      r += '%2d,' % v
  
  print('static const char xmlEscapeTabAttr[128] = {%s\n};\n' % r)
  
  

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