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"""HTML formated DocumentTemplates
$Id: DT_HTML.py,v 1.2 2001/03/03 18:48:31 henning Exp $"""
from DT_String import String,FileMixin
import DT_String, regex
from DT_Util import ParseError,str
from string import strip,find,split,join,rfind,replace
class dtml_re_class:
def search(self, text, start=0,
name_match=regex.compile('[\0- ]*[a-zA-Z]+[\0- ]*').match,
end_match=regex.compile('[\0- ]*\(/\|end\)',
regex.casefold).match,
start_search=regex.compile('[<&]').search,
ent_name=regex.compile('[-a-zA-Z0-9_.]+').match,
find=find,
strip=strip,
replace=replace,
):
while 1:
s=start_search(text, start)
if s < 0: return -1
if text[s:s+5] == '<!--#':
n=s+5
e=find(text,'-->',n)
if e < 0: return -1
en=3
l=end_match(text,n)
if l > 0:
end=strip(text[n:n+l])
n=n+l
else: end=''
elif text[s:s+6] == '<dtml-':
e=n=s+6
while 1:
e=find(text,'>',e+1)
if e < 0: return -1
if len(split(text[n:e],'"'))%2:
# check for even number of "s inside
break
en=1
end=''
elif text[s:s+7] == '</dtml-':
e=n=s+7
while 1:
e=find(text,'>',e+1)
if e < 0: return -1
if len(split(text[n:e],'"'))%2:
# check for even number of "s inside
break
en=1
end='/'
else:
if text[s:s+5] == '&dtml' and text[s+5] in '.-':
n=s+6
e=find(text,';',n)
if e >= 0:
args=text[n:e]
l=len(args)
if ent_name(args) == l:
d=self.__dict__
if text[s+5]=='-':
d[1]=d['end']=''
d[2]=d['name']='var'
d[0]=text[s:e+1]
d[3]=d['args']=args+' html_quote'
return s
else:
nn=find(args,'-')
if nn >= 0 and nn < l-1:
d[1]=d['end']=''
d[2]=d['name']='var'
d[0]=text[s:e+1]
args=(args[nn+1:]+' '+
replace(args[:nn],'.',' '))
d[3]=d['args']=args
return s
start=s+1
continue
break
l=name_match(text,n)
if l < 0: return l
a=n+l
name=strip(text[n:a])
args=strip(text[a:e])
d=self.__dict__
d[0]=text[s:e+en]
d[1]=d['end']=end
d[2]=d['name']=name
d[3]=d['args']=args
return s
def group(self, *args):
get=self.__dict__.get
if len(args)==1:
return get(args[0])
return tuple(map(get, args))
class HTML(DT_String.String):
"""HTML Document Templates
HTML Document templates use HTML server-side-include syntax,
rather than Python format-string syntax. Here's a simple example:
<!--#in results-->
<!--#var name-->
<!--#/in-->
HTML document templates quote HTML tags in source when the
template is converted to a string. This is handy when templates
are inserted into HTML editing forms.
"""
tagre__roles__=()
def tagre(self):
return dtml_re_class()
parseTag__roles__=()
def parseTag(self, tagre, command=None, sargs=''):
"""Parse a tag using an already matched re
Return: tag, args, command, coname
where: tag is the tag,
args is the tag\'s argument string,
command is a corresponding command info structure if the
tag is a start tag, or None otherwise, and
coname is the name of a continue tag (e.g. else)
or None otherwise
"""
tag, end, name, args, =tagre.group(0, 'end', 'name', 'args')
args=strip(args)
if end:
if not command or name != command.name:
raise ParseError, ('unexpected end tag', tag)
return tag, args, None, None
if command and name in command.blockContinuations:
if name=='else' and args:
# Waaaaaah! Have to special case else because of
# old else start tag usage. Waaaaaaah!
l=len(args)
if not (args==sargs or
args==sargs[:l] and sargs[l:l+1] in ' \t\n'):
return tag, args, self.commands[name], None
return tag, args, None, name
try: return tag, args, self.commands[name], None
except KeyError:
raise ParseError, ('Unexpected tag', tag)
SubTemplate__roles__=()
def SubTemplate(self, name): return HTML('', __name__=name)
varExtra__roles__=()
def varExtra(self,tagre): return 's'
manage_edit__roles__=()
def manage_edit(self,data,REQUEST=None):
'edit a template'
self.munge(data)
if REQUEST: return self.editConfirmation(self,REQUEST)
quotedHTML__roles__=()
def quotedHTML(self,
text=None,
character_entities=(
(('&'), '&'),
(("<"), '<' ),
((">"), '>' ),
(('"'), '"'))): #"
if text is None: text=self.read_raw()
for re,name in character_entities:
if find(text, re) >= 0: text=join(split(text,re),name)
return text
errQuote__roles__=()
errQuote=quotedHTML
def __str__(self):
return self.quotedHTML()
# these should probably all be deprecated.
management_interface__roles__=()
def management_interface(self):
'''Hook to allow public execution of management interface with
everything else private.'''
return self
manage_editForm__roles__=()
def manage_editForm(self, URL1, REQUEST):
'''Display doc template editing form''' #"
return self._manage_editForm(
self,
mapping=REQUEST,
__str__=str(self),
URL1=URL1
)
manage_editDocument__roles__=()
manage__roles__=()
manage_editDocument=manage=manage_editForm
class HTMLDefault(HTML):
'''\
HTML document templates that edit themselves through copy.
This is to make a distinction from HTMLobjectsthatshouldedit import
themselves in place.
'''
copy_class__roles__=()
copy_class=HTML
manage_edit__roles__=()
def manage_edit(self,data,PARENTS,URL1,REQUEST):
'edit a template'
newHTML=self.copy_class(data,self.globals,self.__name__)
setattr(PARENTS[1],URL1[rfind(URL1,'/')+1:],newHTML)
return self.editConfirmation(self,REQUEST)
class HTMLFile(FileMixin, HTML):
"""\
HTML Document templates read from files.
If the object is pickled, the file name, rather
than the file contents is pickled. When the object is
unpickled, then the file will be re-read to obtain the string.
Note that the file will not be read until the document
template is used the first time.
"""
manage_default__roles__=()
def manage_default(self, REQUEST=None):
'Revert to factory defaults'
if self.edited_source:
self.edited_source=''
self._v_cooked=self.cook()
if REQUEST: return self.editConfirmation(self,REQUEST)
manage_editForm__roles__=()
def manage_editForm(self, URL1, REQUEST):
'''Display doc template editing form'''
return self._manage_editForm(mapping=REQUEST,
document_template_edit_width=
self.document_template_edit_width,
document_template_edit_header=
self.document_template_edit_header,
document_template_form_header=
self.document_template_form_header,
document_template_edit_footer=
self.document_template_edit_footer,
URL1=URL1,
__str__=str(self),
FactoryDefaultString=FactoryDefaultString,
)
manage_editDocument__roles__=()
manage__roles__=()
manage_editDocument=manage=manage_editForm
manage_edit__roles__=()
def manage_edit(self,data,
PARENTS=[],URL1='',URL2='',REQUEST='', SUBMIT=''):
'edit a template'
if SUBMIT==FactoryDefaultString: return self.manage_default(REQUEST)
if find(data,'\r'):
data=join(split(data,'\r\n'),'\n\r')
data=join(split(data,'\n\r'),'\n')
if self.edited_source:
self.edited_source=data
self._v_cooked=self.cook()
else:
__traceback_info__=self.__class__
newHTML=self.__class__()
newHTML.__setstate__(self.__getstate__())
newHTML.edited_source=data
setattr(PARENTS[1],URL1[rfind(URL1,'/')+1:],newHTML)
if REQUEST: return self.editConfirmation(self,REQUEST)
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