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##############################################################################
#
# TemplateFields - DTML and ZPT fields for Archetypes
# Copyright (C) 2005 Klein & Partner KEG
#
# 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
#
##############################################################################
"""
$Id: validators.py 5087 2005-10-24 08:53:49Z panjunyong $
"""
from Products.validation import validation, interfaces
from OFS.DTMLMethod import DTMLMethod
from DocumentTemplate.DT_Util import ParseError
from Products.PageTemplates.PageTemplate import PageTemplate
class DTMLValidator:
""" Validator for DTML Methods.
>>> validator = DTMLValidator()
>>> validator("<dtml-var title_or_id>")
1
>>> validator("<dtml-spam>")
'Unexpected tag, for tag <dtml-spam>, on line 1 of <string><p>'
"""
__implements__ = (interfaces.ivalidator,)
name = 'dtmlvalidator'
def __call__(self, value, *args, **kwargs):
if not isinstance(value, DTMLMethod):
dtml = DTMLMethod('no_id')
dtml.raw = value
value = dtml
try:
value.parse(value.read())
except ParseError, e:
return e
else:
return 1
validation.register(DTMLValidator())
class ZPTValidator:
""" Validator for Zope Page Templates.
>>> validator = ZPTValidator()
>>> validator("<span tal:replace='here/title_or_id' />")
1
>>> res = validator("<span tal:foobar='here' />")
>>> res.startswith("Compilation failed")
True
>>> res = validator("<!spam>")
>>> res.startswith("Compilation failed")
True
"""
__implements__ = (interfaces.ivalidator,)
name = 'zptvalidator'
def __call__(self, value, *args, **kwargs):
if not isinstance(value, PageTemplate):
pt = PageTemplate()
pt.write(value)
value = pt
errors = value.pt_errors()
if errors:
return '<br/>\n'.join(errors)
else:
return 1
validation.register(ZPTValidator())
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