def testParseLikeEcho(self):
s = args.BuiltinFlags()
s.ShortFlag('-e') # no backslash escapes
s.ShortFlag('-n')
arg, i = s.ParseLikeEcho(['-e', '-n', 'foo'])
self.assertEqual(True, arg.e)
self.assertEqual(True, arg.n)
self.assertEqual(2, i)
arg, i = s.ParseLikeEcho(['-en', 'foo'])
self.assertEqual(True, arg.e)
self.assertEqual(True, arg.n)
self.assertEqual(1, i)
arg, i = s.ParseLikeEcho(['-ez', 'foo'])
self.assertEqual(None, arg.e)
self.assertEqual(None, arg.n)
self.assertEqual(0, i)
def testBuiltinFlags(self):
s = args.BuiltinFlags()
s.ShortFlag('-f')
s.ShortFlag('-n')
s.ShortFlag('-d', args.Str) # delimiter
arg, i = s.Parse(['-f', 'foo', 'bar'])
self.assertEqual(1, i)
self.assertEqual(True, arg.f)
self.assertEqual(None, arg.n)
self.assertRaises(args.UsageError, s.Parse, ['-f', '-d'])
arg, i = s.Parse(['-d', ' ', 'foo'])
self.assertEqual(2, i)
self.assertEqual(' ', arg.d)
arg, i = s.Parse(['-d,', 'foo'])
self.assertEqual(1, i)
self.assertEqual(',', arg.d)
def testReadBuiltinFlags(self):
s = args.BuiltinFlags()
s.ShortFlag('-r') # no backslash escapes
s.ShortFlag('-t', args.Float) # timeout
s.ShortFlag('-p', args.Str) # prompt string
arg, i = s.Parse(['-r', 'foo'])
self.assertEqual(True, arg.r)
self.assertEqual(1, i)
arg, i = s.Parse(['-p', '>'])
self.assertEqual(None, arg.r)
self.assertEqual('>', arg.p)
self.assertEqual(2, i)
arg, i = s.Parse(['-rp', '>'])
self.assertEqual(True, arg.r)
self.assertEqual('>', arg.p)
self.assertEqual(2, i)
# REALLY ANNOYING: The first r is a flag, the second R is the prompt! Only
# works in that order
# Does that mean anything with an arity consumes the rest?
# read -p line
#
arg, i = s.Parse(['-rpr'])
self.assertEqual(True, arg.r)
self.assertEqual('r', arg.p)
self.assertEqual(1, i)
argv = ['-t1.5', '>']
arg, i = s.Parse(argv)
self.assertEqual(1.5, arg.t)
self.assertEqual(1, i)
# Invalid flag 'z'
self.assertRaises(args.UsageError, s.Parse, ['-rz'])
def Register(self, name, help_topic=None):
help_topic = help_topic or name
arg_spec = args.BuiltinFlags()
self.arg_specs[name] = arg_spec
return arg_spec
#!/usr/bin/python
from __future__ import print_function
"""
readlink.py - Minimal implementation of readlink -f, e.g. for OS X.
"""
import libc
from core import args, util
SPEC = args.BuiltinFlags()
SPEC.ShortFlag('-f')
def main(argv):
arg, i = SPEC.Parse(argv)
if not arg.f:
util.error("-f must be passed")
return 1
for path in argv[i:]:
res = libc.realpath(path)
if res is None:
return 1
print(res)
return 0
