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calebasse
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Allow a silent mode for missing variables in template generation.

This commit is contained in:
Mikaël Ates 2013-05-13 12:13:55 +02:00
parent d2d9cff5cf
commit 9fdf0ddd7c
1 changed files with 6 additions and 5 deletions
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11
calebasse/doc_templates.py
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@ -23,7 +23,7 @@ def delete_on_error(f):
raise
def replace_variables(template, variables):
def replace_variables(template, variables, ignore_unused=True):
'''Lookup all substring looking like @XXX9 in the string template, and
replace them by the value of the key XXX9 in the dictionary variables.
@ -37,10 +37,11 @@ def replace_variables(template, variables):
given_vars = set(variables.keys())
if given_vars != needed_vars:
missing = needed_vars - given_vars
unused = given_vars - needed_vars
raise DocTemplateError(
'Mismatch between given and needed variables: missing={0} unused={1}'
.format(map(repr, missing), map(repr, unused)))
if missing or not ignore_unused:
unused = given_vars - needed_vars
raise DocTemplateError(
'Mismatch between given and needed variables: missing={0} unused={1}'
.format(map(repr, missing), map(repr, unused)))
def variable_replacement(match_obj):
return variables[match_obj.group(0)[1:]]
return re.sub(VARIABLE_RE, variable_replacement, template)