summaryrefslogtreecommitdiff
path: root/engine/SCons/Variables/ListVariable.py
diff options
context:
space:
mode:
Diffstat (limited to 'engine/SCons/Variables/ListVariable.py')
-rw-r--r--engine/SCons/Variables/ListVariable.py139
1 files changed, 139 insertions, 0 deletions
diff --git a/engine/SCons/Variables/ListVariable.py b/engine/SCons/Variables/ListVariable.py
new file mode 100644
index 0000000..4eab726
--- /dev/null
+++ b/engine/SCons/Variables/ListVariable.py
@@ -0,0 +1,139 @@
+"""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, 2009 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 4577 2009/12/27 19:43:56 scons"
+
+# 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))
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: