Update of /cvsroot/mailman/mailman3/src/mailman/text
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv31133/src/mailman/text
Added Files:
Tag: 3.0
__init__.py safedict.py strings.py
Log Message:
Initial checkin of Mailman3 source
--- NEW FILE: __init__.py ---
--- NEW FILE: safedict.py ---
# Copyright (C) 2004 Barry A. Warsaw
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
"""Substitution dictionaries."""
import sys
_missing = object()
class safedict(dict):
"""Dictionary which returns a default value for unknown keys."""
def __getitem__(self, key):
if key.startswith('{') and key.endswith('}'):
key = key[1:-1]
fmt = '${%s}'
else:
fmt = '$%s'
try:
return super(safedict, self).__getitem__(key)
except KeyError:
return fmt % key
class nsdict(dict):
"""Dictionary which substitutes in locals and globals."""
def __getitem__(self, key):
if key.startswith('{') and key.endswith('}'):
key = key[1:-1]
fmt = '${%s}'
else:
fmt = '$%s'
# Split the key as if it were an attribute path
parts = key.split('.')
part0 = parts.pop(0)
# Now search for the parts, starting with the locals and then trying
# the globals, in the frame two call sites up. getframe(0) would be
# this function, while getframe(1) would be the _() function in the
# i18n module. We want the one above that.
frame = sys._getframe(2)
if frame.f_locals.has_key(part0):
obj = frame.f_locals[part0]
elif frame.f_globals.has_key(part0):
obj = frame.f_globals[part0]
else:
return fmt % key
while parts:
attr = parts.pop(0)
obj = getattr(obj, attr, _missing)
if obj is _missing:
return fmt % key
return obj
--- NEW FILE: strings.py ---
# Copyright (C) 2004 Barry A. Warsaw
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
"""Some useful unicode string subclasses."""
import re
# Search for $$, $identifier, or ${identifier}
dre = re.compile(r'(\${2})|\$([_a-z][_a-z0-9]*)|\$({[_a-z][_a-z0-9]*})',
re.IGNORECASE)
# Like dre, but allows dots after the first character
ire = re.compile(r'(\${2})|\$([_a-z][_.a-z0-9]*)|\$({[_a-z][_.a-z0-9]*})',
re.IGNORECASE)
# Like drea, but requires ${mm:variable} patterns, for email
mre = re.compile(r'(\${2})|\$(mm:[_a-z]\w*)|\$({mm:[_a-z]\w*})', re.IGNORECASE)
EMPTYSTRING = ''
SPACE = ' '
class dstring(unicode):
cre = dre
"""A string class for supporting $-substitutions."""
def __new__(cls, ustr, encoding='ascii', errors='strict'):
ustr = ustr.replace('%', '%%')
parts = cls.cre.split(ustr)
for i in range(1, len(parts), 4):
if parts[i] is not None:
parts[i] = '$'
elif parts[i+1] is not None:
parts[i+1] = '%(' + parts[i+1] + ')s'
else:
parts[i+2] = '%(' + parts[i+2] + ')s'
newval = EMPTYSTRING.join(filter(None, parts))
if isinstance(ustr, unicode):
return unicode.__new__(cls, newval)
else:
return unicode.__new__(cls, newval, encoding, errors)
class mstring(dstring):
"""For email substitutions."""
cre = mre
class istring(dstring):
"""For i18n text strings."""
cre = ire
__pychecker__ = 'self=cls'
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