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added format_advanced jinja filter to template module

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This commit is contained in:
Matthew Williams 2012-03-27 08:51:37 -07:00
parent e2deb94e73
commit d9a464ee9d
1 changed files with 17 additions and 1 deletions
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18
library/template
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@ -19,6 +19,7 @@
import sys
import os
import collections
import jinja2
import shlex
try:
@ -26,6 +27,21 @@ try:
except ImportError:
import simplejson as json
environment = jinja2.Environment()
def format_advanced(fmt, data):
# jinja2 filter to use advanced python string formatting
# e.g, {{ "{0} {1} {2}"|format_advanced(['a', 'b', 'c']) }}
# see http://docs.python.org/library/string.html#formatstrings
if isinstance(data, collections.Mapping):
return fmt.format(**data)
elif isinstance(data, collections.Sequence):
return fmt.format(*data)
else:
return data
environment.filters['format_advanced'] = format_advanced
# ===========================================
# convert arguments of form a=b c=d
# to a dictionary
@ -91,7 +107,7 @@ if os.path.exists(dest):
md5sum = os.popen("md5sum %s" % dest).read().split()[0]
# call Jinja2 here and save the new template file
template = jinja2.Template(source)
template = environment.from_string(source)
data_out = template.render(data)
f = open(dest, "w+")
f.write(data_out)