This required allowing tests to be decorated with '@environmentfilter'.
Tests are essentially the same as filters now, the node, compiler, and
environment have been refactored to extract common behavior.
For those who were actually looking for the template design documentation putting a link directly to it might prevent them to have to google for it. When on the API page, there is no direct way to find the template design documentation. Hope this can help others.
* Add ChainableUndefined allowing getattr & getitem
Allows using default values with chains of items or attributes that may
contain undefined values without raising a jinja2.exceptions.UndefinedError.
>>> import jinja2
>>> env = jinja2.Environment(undefined=jinja2.ChainableUndefined)
>>> env.from_string("{{ foo.bar['baz'] | default('val') }}").render()
'val'
* Remove class decorator from ChainableUndefined
This example attempts to handle both Windows-style and Unix-style line endings, but does it wrong; as noted at https://stackoverflow.com/q/12521127/1709587, the regex here will match a single \r\n as if it were a double line-break, which results in all single Windows-style line-breaks getting converted into <p> breaks instead of <br> breaks as intended.
This patch fixes that by applying Alan Moore's proposed fix from https://stackoverflow.com/a/12521544/1709587 of using a negative lookahead so that a \r cannot be counted as a line break if it is followed by a \n (while still allowing the \r\n combination to count as a line break).
Many editors clean up trailing white space on save. By removing it all
in one go, it helps keep future diffs cleaner by avoiding spurious white
space changes on unrelated lines.
