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comparison mercurial/templater.py @ 3635:231393b7316f

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templater: use str.decode in parse_string
author Matt Mackall <mpm@selenic.com>
date Mon, 13 Nov 2006 13:26:57 -0600
parents fab28100ea88
children bf3dec184c78
comparison
equal deleted inserted replaced
3634:770c4fc03b8e 3635:231393b7316f
8 from demandload import demandload 8 from demandload import demandload
9 from i18n import gettext as _ 9 from i18n import gettext as _
10 from node import * 10 from node import *
11 demandload(globals(), "cStringIO cgi re sys os time urllib util textwrap") 11 demandload(globals(), "cStringIO cgi re sys os time urllib util textwrap")
12 12
13 esctable = {
14 '\\': '\\',
15 'r': '\r',
16 't': '\t',
17 'n': '\n',
18 'v': '\v',
19 }
20
21 def parsestring(s, quoted=True): 13 def parsestring(s, quoted=True):
22 '''parse a string using simple c-like syntax. 14 '''parse a string using simple c-like syntax.
23 string must be in quotes if quoted is True.''' 15 string must be in quotes if quoted is True.'''
24 fp = cStringIO.StringIO()
25 if quoted: 16 if quoted:
26 first = s[0] 17 first = s[0]
27 if len(s) < 2: raise SyntaxError(_('string too short')) 18 if len(s) < 2: raise SyntaxError(_('string too short'))
28 if first not in "'\"": raise SyntaxError(_('invalid quote')) 19 if first not in "'\"": raise SyntaxError(_('invalid quote'))
29 if s[-1] != first: raise SyntaxError(_('unmatched quotes')) 20 if s[-1] != first: raise SyntaxError(_('unmatched quotes'))
30 s = s[1:-1] 21 s = s[1:-1].decode('string_escape')
31 escape = False 22 if first in s: raise SyntaxError(_('string ends early'))
32 for c in s: 23 return s
33 if escape: 24
34 fp.write(esctable.get(c, c)) 25 return s.decode('string_escape')
35 escape = False
36 elif c == '\\': escape = True
37 elif quoted and c == first: raise SyntaxError(_('string ends early'))
38 else: fp.write(c)
39 if escape: raise SyntaxError(_('unterminated escape'))
40 return fp.getvalue()
41 26
42 class templater(object): 27 class templater(object):
43 '''template expansion engine. 28 '''template expansion engine.
44 29
45 template expansion works like this. a map file contains key=value 30 template expansion works like this. a map file contains key=value