def _render_template(instance: WikiTextHtml, template: wikitextparser.Template):
name = template.name.strip()
try:
if not instance.template_exists(name):
instance.add_error(f'Template "{name}" does not exist.')
except InvalidTemplate as e:
# Errors always end with a dot, hence the [:-1].
instance.add_error(f'{e.args[0][:-1]} (template "{{{{{name}}}}}").')
return
instance._templates.add(name)
if instance._template_path.count(name) >= 10:
instance.add_error(
f'Template "{name}" was transcluded itself more than ten times (recursion depth limit reached).'
)
return
instance._template_path.append(name)
body = instance.template_load(name)
body = preprocess.begin(instance, body, is_transcluding=True)
body = preprocess.hr_line(instance, body)
wtp = wikitextparser.parse(body)
parameter.replace(instance, wtp, template.arguments)
parser_function.replace(instance, wtp)
replace(instance, wtp)
template.string = wtp.string
instance._template_path.remove(name)
def test_overwriting_template_args(self):
t = Template('{{t|a|b|c}}')
c = t.arguments[-1]
self.assertEqual('|c', c.string)
t.string = '{{t|0|a|b|c}}'
self.assertEqual('', c.string)
self.assertEqual('0', t.get_arg('1').value)
self.assertEqual('c', t.get_arg('4').value)
def test_overwriting_template_args():
t = Template('{{t|a|b|c}}')
c = t.arguments[-1]
assert '|c' == c.string
t.string = '{{t|0|a|b|c}}'
assert '' == c.string
assert '0' == t.get_arg('1').value
assert 'c' == t.get_arg('4').value