ListVariable.py.svn-base
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上传日期:2018-11-18
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文件大小:4k
源码类别:
外挂编程
开发平台:
Windows_Unix
- """engine.SCons.Variables.ListVariable
- This file defines the option type for SCons implementing 'lists'.
- A 'list' option may either be 'all', 'none' or a list of names
- separated by comma. After the option has been processed, the option
- value holds either the named list elements, all list elemens or no
- list elements at all.
- Usage example:
- list_of_libs = Split('x11 gl qt ical')
- opts = Variables()
- opts.Add(ListVariable('shared',
- 'libraries to build as shared libraries',
- 'all',
- elems = list_of_libs))
- ...
- for lib in list_of_libs:
- if lib in env['shared']:
- env.SharedObject(...)
- else:
- env.Object(...)
- """
- #
- # 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/Variables/ListVariable.py 3057 2008/06/09 22:21:00 knight"
- # Know Bug: This should behave like a Set-Type, but does not really,
- # since elements can occur twice.
- __all__ = ['ListVariable',]
- import string
- import UserList
- import SCons.Util
- class _ListVariable(UserList.UserList):
- def __init__(self, initlist=[], allowedElems=[]):
- UserList.UserList.__init__(self, filter(None, initlist))
- self.allowedElems = allowedElems[:]
- self.allowedElems.sort()
- def __cmp__(self, other):
- raise NotImplementedError
- def __eq__(self, other):
- raise NotImplementedError
- def __ge__(self, other):
- raise NotImplementedError
- def __gt__(self, other):
- raise NotImplementedError
- def __le__(self, other):
- raise NotImplementedError
- def __lt__(self, other):
- raise NotImplementedError
- def __str__(self):
- if len(self) == 0:
- return 'none'
- self.data.sort()
- if self.data == self.allowedElems:
- return 'all'
- else:
- return string.join(self, ',')
- def prepare_to_store(self):
- return self.__str__()
- def _converter(val, allowedElems, mapdict):
- """
- """
- if val == 'none':
- val = []
- elif val == 'all':
- val = allowedElems
- else:
- val = filter(None, string.split(val, ','))
- val = map(lambda v, m=mapdict: m.get(v, v), val)
- notAllowed = filter(lambda v, aE=allowedElems: not v in aE, val)
- if notAllowed:
- raise ValueError("Invalid value(s) for option: %s" %
- string.join(notAllowed, ','))
- return _ListVariable(val, allowedElems)
- ## def _validator(key, val, env):
- ## """
- ## """
- ## # todo: write validater for pgk list
- ## return 1
- def ListVariable(key, help, default, names, map={}):
- """
- The input parameters describe a 'package list' option, thus they
- are returned with the correct converter and validater appended. The
- result is usable for input to opts.Add() .
- A 'package list' option may either be 'all', 'none' or a list of
- package names (separated by space).
- """
- names_str = 'allowed names: %s' % string.join(names, ' ')
- if SCons.Util.is_List(default):
- default = string.join(default, ',')
- help = string.join(
- (help, '(all|none|comma-separated list of names)', names_str),
- 'n ')
- return (key, help, default,
- None, #_validator,
- lambda val, elems=names, m=map: _converter(val, elems, m))