_scons_UserString.py
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上传日期:2018-11-18
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文件大小:3k
- #
- # Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
- #
- # Permission is hereby granted, free of charge, to any person obtaining
- # a copy of this software and associated documentation files (the
- # "Software"), to deal in the Software without restriction, including
- # without limitation the rights to use, copy, modify, merge, publish,
- # distribute, sublicense, and/or sell copies of the Software, and to
- # permit persons to whom the Software is furnished to do so, subject to
- # the following conditions:
- #
- # The above copyright notice and this permission notice shall be included
- # in all copies or substantial portions of the Software.
- #
- # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
- # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- #
- __revision__ = "src/engine/SCons/compat/_scons_UserString.py 3057 2008/06/09 22:21:00 knight"
- __doc__ = """
- A user-defined wrapper around string objects
- This class is "borrowed" from the Python 2.2 UserString and modified
- slightly for use with SCons. It is *NOT* guaranteed to be fully compliant
- with the standard UserString class from all later versions of Python.
- In particular, it does not necessarily contain all of the methods found
- in later versions.
- """
- import types
- StringType = types.StringType
- if hasattr(types, 'UnicodeType'):
- UnicodeType = types.UnicodeType
- def is_String(obj):
- return type(obj) in (StringType, UnicodeType)
- else:
- def is_String(obj):
- return type(obj) is StringType
- class UserString:
- def __init__(self, seq):
- if is_String(seq):
- self.data = seq
- elif isinstance(seq, UserString):
- self.data = seq.data[:]
- else:
- self.data = str(seq)
- def __str__(self): return str(self.data)
- def __repr__(self): return repr(self.data)
- def __int__(self): return int(self.data)
- def __long__(self): return long(self.data)
- def __float__(self): return float(self.data)
- def __complex__(self): return complex(self.data)
- def __hash__(self): return hash(self.data)
- def __cmp__(self, string):
- if isinstance(string, UserString):
- return cmp(self.data, string.data)
- else:
- return cmp(self.data, string)
- def __contains__(self, char):
- return char in self.data
- def __len__(self): return len(self.data)
- def __getitem__(self, index): return self.__class__(self.data[index])
- def __getslice__(self, start, end):
- start = max(start, 0); end = max(end, 0)
- return self.__class__(self.data[start:end])
- def __add__(self, other):
- if isinstance(other, UserString):
- return self.__class__(self.data + other.data)
- elif is_String(other):
- return self.__class__(self.data + other)
- else:
- return self.__class__(self.data + str(other))
- def __radd__(self, other):
- if is_String(other):
- return self.__class__(other + self.data)
- else:
- return self.__class__(str(other) + self.data)
- def __mul__(self, n):
- return self.__class__(self.data*n)
- __rmul__ = __mul__