##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
#
# This license has been certified as Open Source(tm).
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions in source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions, and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
# violation to remove this button, it is requested that the
# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
#
# 4. All advertising materials and documentation mentioning
# features derived from or use of this software must display
# the following acknowledgement:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# In the event that the product being advertised includes an
# intact Zope distribution (with copyright and license included)
# then this clause is waived.
#
# 5. Names associated with Zope or Digital Creations must not be used to
# endorse or promote products derived from this software without
# prior written permission from Digital Creations.
#
# 6. Modified redistributions of any form whatsoever must retain
# the following acknowledgment:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# Intact (re-)distributions of any official Zope release do not
# require an external acknowledgement.
#
# 7. Modifications are encouraged but must be packaged separately as
# patches to official Zope releases. Distributions that do not
# clearly separate the patches from the original work must be clearly
# labeled as unofficial distributions. Modifications which do not
# carry the name Zope may be packaged in any form, as long as they
# conform to all of the clauses above.
#
#
# Disclaimer
#
# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
__version__='$Revision: 1.2 $'[11:-2]
import regex
from string import atoi,atol,atof,join,split,strip
from types import ListType,TupleType
def field2string(v):
if hasattr(v,'read'): v=v.read()
else: v=str(v)
return v
def field2text(v, nl=regex.compile('\r\n\|\n\r').search):
if hasattr(v,'read'): v=v.read()
else: v=str(v)
l=nl(v)
if l < 0: return v
r=[]
s=0
while l >= s:
r.append(v[s:l])
s=l+2
l=nl(v,s)
r.append(v[s:])
return join(r,'\n')
def field2required(v):
if hasattr(v,'read'): v=v.read()
else: v=str(v)
if strip(v): return v
raise ValueError, 'No input for required field<p>'
def field2int(v):
if type(v) in (ListType, TupleType):
return map(field2int, v)
if hasattr(v,'read'): v=v.read()
else: v=str(v)
if v:
try: return atoi(v)
except ValueError:
raise ValueError, (
"An integer was expected in the value '%s'" % v
)
raise ValueError, 'Empty entry when <strong>integer</strong> expected'
def field2float(v):
if type(v) in (ListType, TupleType):
return map(field2float, v)
if hasattr(v,'read'): v=v.read()
else: v=str(v)
if v:
try: return atof(v)
except ValueError:
raise ValueError, (
"A floating-point number was expected in the value '%s'" % v
)
raise ValueError, (
'Empty entry when <strong>floating-point number</strong> expected')
def field2long(v):
if type(v) in (ListType, TupleType):
return map(field2long, v)
if hasattr(v,'read'): v=v.read()
else: v=str(v)
# handle trailing 'L' if present.
if v[-1:] in ('L', 'l'):
v = v[:-1]
if v:
try: return atol(v)
except ValueError:
raise ValueError, (
"A long integer was expected in the value '%s'" % v
)
raise ValueError, 'Empty entry when <strong>integer</strong> expected'
def field2tokens(v):
if hasattr(v,'read'): v=v.read()
else: v=str(v)
return split(v)
def field2lines(v):
if type(v) in (ListType, TupleType):
result=[]
for item in v:
result.append(str(item))
return result
return split(field2text(v),'\n')
def field2date(v):
from DateTime import DateTime
if hasattr(v,'read'): v=v.read()
else: v=str(v)
return DateTime(v)
def field2boolean(v):
return v
type_converters = {
'float': field2float,
'int': field2int,
'long': field2long,
'string': field2string,
'date': field2date,
'required': field2required,
'tokens': field2tokens,
'lines': field2lines,
'text': field2text,
'boolean': field2boolean,
}
get_converter=type_converters.get
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