| #!/usr/bin/env python |
| """ Utility for parsing HTML entity definitions available from: |
| |
| http://www.w3.org/ as e.g. |
| http://www.w3.org/TR/REC-html40/HTMLlat1.ent |
| |
| Input is read from stdin, output is written to stdout in form of a |
| Python snippet defining a dictionary "entitydefs" mapping literal |
| entity name to character or numeric entity. |
| |
| Marc-Andre Lemburg, mal@lemburg.com, 1999. |
| Use as you like. NO WARRANTIES. |
| |
| """ |
| import re,sys |
| import TextTools |
| |
| entityRE = re.compile('<!ENTITY +(\w+) +CDATA +"([^"]+)" +-- +((?:.|\n)+?) *-->') |
| |
| def parse(text,pos=0,endpos=None): |
| |
| pos = 0 |
| if endpos is None: |
| endpos = len(text) |
| d = {} |
| while 1: |
| m = entityRE.search(text,pos,endpos) |
| if not m: |
| break |
| name,charcode,comment = m.groups() |
| d[name] = charcode,comment |
| pos = m.end() |
| return d |
| |
| def writefile(f,defs): |
| |
| f.write("entitydefs = {\n") |
| items = defs.items() |
| items.sort() |
| for name,(charcode,comment) in items: |
| if charcode[:2] == '&#': |
| code = int(charcode[2:-1]) |
| if code < 256: |
| charcode = "'\%o'" % code |
| else: |
| charcode = repr(charcode) |
| else: |
| charcode = repr(charcode) |
| comment = TextTools.collapse(comment) |
| f.write(" '%s':\t%s, \t# %s\n" % (name,charcode,comment)) |
| f.write('\n}\n') |
| |
| if __name__ == '__main__': |
| if len(sys.argv) > 1: |
| infile = open(sys.argv[1]) |
| else: |
| infile = sys.stdin |
| if len(sys.argv) > 2: |
| outfile = open(sys.argv[2],'w') |
| else: |
| outfile = sys.stdout |
| text = infile.read() |
| defs = parse(text) |
| writefile(outfile,defs) |
