kc3-lang/libxml2/codegen/genEscape.py

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• Hash : 258d8706
  Author :
  Date : 2025-05-15T17:49:49
  

  codegen: Consolidate tools for code generation
  
  Move tools, source files and output tables into codegen directory.
  
  Rename some files.
  
  Adjust tools to match modified files. Remove generation date and source
  files from output.
  
  Distribute all tools and sources.
  

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• codegen/genEscape.py

• #!/usr/bin/env python3
  
  entities = [
      [ '',   '�' ],
      [ '\t', '	' ],
      [ '\n', '
' ],
      [ '\r', '
' ],
      [ '"',  '"' ],
      [ '&',  '&' ],
      [ '<',  '&lt;' ],
      [ '>',  '&gt;' ],
  ]
  
  offset = [ None ] * 128
  
  def gen_content(out):
      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
  
      out.write('static const char xmlEscapeContent[] = {%s\n};\n\n' % r)
  
  def gen_tab(out, name, escape, is_xml):
      r = ''
  
      for i in range(0x80):
  
          if chr(i) in escape:
              v = offset[i]
          elif i == 0:
              v = 0
          elif is_xml and i < 32 and i != 9 and i != 10:
              v = 0
          else:
              v = -1
  
          if i % 16 == 0: r += '\n    '
          else: r += ' '
          r += '%2d,' % v
  
      out.write('static const signed char %s[128] = {%s\n};\n\n' % (name, r))
  
  with open('codegen/escape.inc', 'w') as out:
      gen_content(out)
  
      gen_tab(out, 'xmlEscapeTab', '\r&<>', True)
      gen_tab(out, 'xmlEscapeTabQuot', '\r"&<>', True)
      gen_tab(out, 'xmlEscapeTabAttr', '\t\n\r"&<>', True)
  
      out.write('#ifdef LIBXML_HTML_ENABLED\n\n')
      gen_tab(out, 'htmlEscapeTab', '&<>', False)
      gen_tab(out, 'htmlEscapeTabAttr', '"&', False)
      out.write('#endif /* LIBXML_HTML_ENABLED */\n')
  

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