1 import sys, textwrap, getopt, re
7 def __setitem__(self, k, v):
10 def __getitem__(self, k):
13 def __getattr__(self, k):
18 def __init__(self, exe, optspec, optfunc=getopt.gnu_getopt):
20 self.optspec = optspec
21 self.optfunc = optfunc
23 self._shortopts = 'h?'
24 self._longopts = ['help']
26 self._usagestr = self._gen_usage()
30 lines = self.optspec.strip().split('\n')
36 out.append('%s: %s\n' % (first_syn and 'usage' or ' or', l))
42 out.append('\n%s\n' % l.lstrip())
44 (flags, extra) = l.split(' ', 1)
46 if flags.endswith('='):
51 flagl = flags.split(',')
54 self._aliases[f] = flagl[0]
55 self._hasparms[f] = has_parm
57 self._shortopts += f + (has_parm and ':' or '')
58 flagl_nice.append('-' + f)
60 f_nice = re.sub(r'\W', '_', f)
61 self._aliases[f_nice] = flagl[0]
62 assert(not f.startswith('no-')) # supported implicitly
63 self._longopts.append(f + (has_parm and '=' or ''))
64 self._longopts.append('no-' + f)
65 flagl_nice.append('--' + f)
66 flags_nice = ', '.join(flagl_nice)
69 prefix = ' %-20s ' % flags_nice
70 argtext = '\n'.join(textwrap.wrap(extra, width=70,
71 initial_indent=prefix,
72 subsequent_indent=' '*28))
73 out.append(argtext + '\n')
76 return ''.join(out).rstrip() + '\n'
79 sys.stderr.write(self._usagestr)
83 sys.stderr.write('error: %s\n' % s)
86 def parse(self, args):
88 (flags,extra) = self.optfunc(args, self._shortopts, self._longopts)
89 except getopt.GetoptError, e:
95 if k in ('h', '?', 'help'):
97 if k.startswith('no-'):
98 k = self._aliases[k[3:]]
102 if not self._hasparms[k]:
104 v = (opt._opts.get(k) or 0) + 1
113 for (f1,f2) in self._aliases.iteritems():
114 opt[f1] = opt._opts.get(f2)
115 return (opt,flags,extra)