2006/8/2, Peter Otten <[EMAIL PROTECTED]>: > Paolo Pantaleo wrote: > > > 2006/8/2, Stephan Diehl <[EMAIL PROTECTED]>: > >> Paolo Pantaleo wrote: > >> > [I hope I am posting to the right place] > >> > > >> > I have a cheetah template something like this: > >> > > >> > x is: $x > >> > y is: $y > >> > z is: $z > >> > > >> > [Actually more complicated] > >> > > >> > If for example $y is not defined I get an exception and the parsing > >> > of the template stops. Is there any way to substitute $y with an emty > >> > string and making cheeta going on with parsing? > >> > > >> > Thnx > >> > PAolo > >> > > >> > >> > http://cheetahtemplate.org/docs/users_guide_html_multipage/language.namemapper.missing.html > >> -- > >> http://mail.python.org/mailman/listinfo/python-list > >> > > > > Actually I wanted to keep things simple for who writes the template, > > so I am using this workaround: I define a class > > > > class ClassMapper: > > def __init__(self,dict={}): > > self.__dict=dict > > def getValue(self,str): > > try: > > return self.__dict[str] > > except KeyError: > > return "" > > > > x=ClassMapper(dict) > > Template(definition, searchList=[{"info":x.getValue}]) > > > > > > > > so the user should do > > > > $info("name") > > > > Maybe I could define a class that implements a dictionary and doesn''t > > raise an exception for a key not present... but it seems to > > complicated. > > You mean something like > > from Cheetah.Template import Template > > class Dict(dict): > def __getitem__(self, key): > return self.get(key, "") > > template = """\ > x is $x > y is $y > z is $z > """ > print Template(template, searchList=[Dict(x="x", y="y")]) > > You can also make a debugging version: > > class Dict(dict): > def __getitem__(self, key): > return self.get(key, "#missing key: %r#" % key) > > Peter > > -- > http://mail.python.org/mailman/listinfo/python-list > Wonderful, thnx a lot. Well not so complicated if you know how to do :D
PAolo -- http://mail.python.org/mailman/listinfo/python-list
