Showing the changes to sys/src/cmd/python/Tools/scripts/parseentities.py (1 of 3706 files). Show all
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| 1 | +#!/usr/local/bin/python | |
| 2 | +""" Utility for parsing HTML entity definitions available from: | |
| 3 | + | |
| 4 | + http://www.w3.org/ as e.g. | |
| 5 | + http://www.w3.org/TR/REC-html40/HTMLlat1.ent | |
| 6 | + | |
| 7 | + Input is read from stdin, output is written to stdout in form of a | |
| 8 | + Python snippet defining a dictionary "entitydefs" mapping literal | |
| 9 | + entity name to character or numeric entity. | |
| 10 | + | |
| 11 | + Marc-Andre Lemburg, mal@lemburg.com, 1999. | |
| 12 | + Use as you like. NO WARRANTIES. | |
| 13 | + | |
| 14 | +""" | |
| 15 | +import re,sys | |
| 16 | +import TextTools | |
| 17 | + | |
| 18 | +entityRE = re.compile('<!ENTITY +(\w+) +CDATA +"([^"]+)" +-- +((?:.|\n)+?) *-->') | |
| 19 | + | |
| 20 | +def parse(text,pos=0,endpos=None): | |
| 21 | + | |
| 22 | + pos = 0 | |
| 23 | + if endpos is None: | |
| 24 | + endpos = len(text) | |
| 25 | + d = {} | |
| 26 | + while 1: | |
| 27 | + m = entityRE.search(text,pos,endpos) | |
| 28 | + if not m: | |
| 29 | + break | |
| 30 | + name,charcode,comment = m.groups() | |
| 31 | + d[name] = charcode,comment | |
| 32 | + pos = m.end() | |
| 33 | + return d | |
| 34 | + | |
| 35 | +def writefile(f,defs): | |
| 36 | + | |
| 37 | + f.write("entitydefs = {\n") | |
| 38 | + items = defs.items() | |
| 39 | + items.sort() | |
| 40 | + for name,(charcode,comment) in items: | |
| 41 | + if charcode[:2] == '&#': | |
| 42 | + code = int(charcode[2:-1]) | |
| 43 | + if code < 256: | |
| 44 | + charcode = "'\%o'" % code | |
| 45 | + else: | |
| 46 | + charcode = repr(charcode) | |
| 47 | + else: | |
| 48 | + charcode = repr(charcode) | |
| 49 | + comment = TextTools.collapse(comment) | |
| 50 | + f.write(" '%s':\t%s, \t# %s\n" % (name,charcode,comment)) | |
| 51 | + f.write('\n}\n') | |
| 52 | + | |
| 53 | +if __name__ == '__main__': | |
| 54 | + if len(sys.argv) > 1: | |
| 55 | + infile = open(sys.argv[1]) | |
| 56 | + else: | |
| 57 | + infile = sys.stdin | |
| 58 | + if len(sys.argv) > 2: | |
| 59 | + outfile = open(sys.argv[2],'w') | |
| 60 | + else: | |
| 61 | + outfile = sys.stdout | |
| 62 | + text = infile.read() | |
| 63 | + defs = parse(text) | |
| 64 | + writefile(outfile,defs) | |