Mercurial > genshi > genshi-test
diff markup/template.py @ 166:718cba809cea
Better error reporting for errors in directive expressions, and when `py:otherwise`/`py:when` are used outside a `py:choose` directive. Thanks to Christian Boos for the initial patch.
author | cmlenz |
---|---|
date | Thu, 17 Aug 2006 14:53:28 +0000 |
parents | 4ed68a904235 |
children | 4b4e80b2b0b5 |
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--- a/markup/template.py +++ b/markup/template.py @@ -152,6 +152,8 @@ try: self.expr = value and Expression(value, filename, lineno) or None except SyntaxError, err: + err.msg += ' in expression "%s" of "%s" directive' % (value, + self.name) raise TemplateSyntaxError(err, filename, lineno, offset + (err.offset or 0)) @@ -164,6 +166,11 @@ expr = ' "%s"' % self.expr.source return '<%s%s>' % (self.__class__.__name__, expr) + def name(self): + """Return the local name of the directive as it is used in templates.""" + return self.__class__.__name__.lower().replace('directive', '') + name = property(name) + def _apply_directives(stream, ctxt, directives): """Apply the given directives to the stream.""" @@ -593,6 +600,9 @@ def __call__(self, stream, ctxt, directives): choose = ctxt['_choose'] + if not choose: + raise TemplateSyntaxError('when directives can only be used inside ' + 'a choose directive', *stream.next()[2]) if choose.matched: return [] value = self.expr.evaluate(ctxt) @@ -615,6 +625,10 @@ """ def __call__(self, stream, ctxt, directives): choose = ctxt['_choose'] + if not choose: + raise TemplateSyntaxError('an otherwise directive can only be used ' + 'inside a choose directive', + *stream.next()[2]) if choose.matched: return [] choose.matched = True