module Crinja::Filter

Overview

Variables can be modified by filters. Filters are separated from the variable by a pipe symbol (|) and may have optional arguments in parentheses. Multiple filters can be chained. The output of one filter is applied to the next.

For example, {{ name|striptags|title }} will remove all HTML Tags from variable name and title-case the output (similar to title(striptags(name))).

Filters that accept arguments have parentheses around the arguments, just like a function call.

For example: {{ listx|join(', ') }} will join a list with commas (list.join(", ")).

Builtin Filters

The following filters are available in the default library:

• **[abs](http://jinja.pocoo.org/docs/2.9/templates/#abs)**()
• **[attr](http://jinja.pocoo.org/docs/2.9/templates/#attr)**(<em>name</em>)
• **[batch](http://jinja.pocoo.org/docs/2.9/templates/#batch)**(<em>linecount=2, fill_with=none</em>)
• **[capitalize](http://jinja.pocoo.org/docs/2.9/templates/#capitalize)**()
• **[center](http://jinja.pocoo.org/docs/2.9/templates/#center)**(<em>width=80</em>)
• **[default](http://jinja.pocoo.org/docs/2.9/templates/#default)**(<em>default_value='', boolean=false</em>)
• **[dictsort](http://jinja.pocoo.org/docs/2.9/templates/#dictsort)**(<em>case_sensitive=false, by='key'</em>)
• **[escape](http://jinja.pocoo.org/docs/2.9/templates/#escape)**()
• **[filesizeforma}](http://jinja.pocoo.org/docs/2.9/templates/#filesizeformat)**(<em>binary=false</em>)
• **[first](http://jinja.pocoo.org/docs/2.9/templates/#first)**()
• **[float](http://jinja.pocoo.org/docs/2.9/templates/#float)**(<em>default=0.0</em>)
• **[forceescape](http://jinja.pocoo.org/docs/2.9/templates/#forceescape)**()
• **[format](http://jinja.pocoo.org/docs/2.9/templates/#format)**()
• **[groupby](http://jinja.pocoo.org/docs/2.9/templates/#groupby)**(<em>attribute</em>)
• **[indent](http://jinja.pocoo.org/docs/2.9/templates/#indent)**(<em>width=4, indentfirst=false</em>)
• **[int](http://jinja.pocoo.org/docs/2.9/templates/#int)**(<em>default=0, base=10</em>)
• **[join](http://jinja.pocoo.org/docs/2.9/templates/#join)**(<em>separator='', attribute=none</em>)
• **[last](http://jinja.pocoo.org/docs/2.9/templates/#last)**()
• **[length](http://jinja.pocoo.org/docs/2.9/templates/#length)**()
• **[list](http://jinja.pocoo.org/docs/2.9/templates/#list)**()
• **[lower](http://jinja.pocoo.org/docs/2.9/templates/#lower)**()
• **[map](http://jinja.pocoo.org/docs/2.9/templates/#map)**()
• **[pprint](http://jinja.pocoo.org/docs/2.9/templates/#pprint)**(<em>verbose=false</em>)
• **[random](http://jinja.pocoo.org/docs/2.9/templates/#random)**()
• **[reject](http://jinja.pocoo.org/docs/2.9/templates/#reject)**()
• **[rejectattr](http://jinja.pocoo.org/docs/2.9/templates/#rejectattr)**()
• **[replace](http://jinja.pocoo.org/docs/2.9/templates/#replace)**(<em>old, new, count=none</em>)
• **[reverse](http://jinja.pocoo.org/docs/2.9/templates/#reverse)**()
• **[round](http://jinja.pocoo.org/docs/2.9/templates/#round)**(<em>precision=0, method='common', base=10</em>)
• **[safe](http://jinja.pocoo.org/docs/2.9/templates/#safe)**()
• **[select](http://jinja.pocoo.org/docs/2.9/templates/#select)**()
• **[selectattr](http://jinja.pocoo.org/docs/2.9/templates/#selectattr)**()
• **[slice](http://jinja.pocoo.org/docs/2.9/templates/#slice)**(<em>slices=2, fill_with=none</em>)
• **[sort](http://jinja.pocoo.org/docs/2.9/templates/#sort)**(<em>reverse=false, case_sensitive=false, attribute=none</em>)
• **[string](http://jinja.pocoo.org/docs/2.9/templates/#string)**()
• **[striptags](http://jinja.pocoo.org/docs/2.9/templates/#striptags)**()
• **[sum](http://jinja.pocoo.org/docs/2.9/templates/#sum)**(<em>attribute=none, start=0</em>)
• **[title](http://jinja.pocoo.org/docs/2.9/templates/#title)**()
• **[tojson](http://jinja.pocoo.org/docs/2.9/templates/#tojson)**(<em>indent=none</em>)
• **[trim](http://jinja.pocoo.org/docs/2.9/templates/#trim)**()
• **[truncate](http://jinja.pocoo.org/docs/2.9/templates/#truncate)**(<em>length=255, killwords=false, end='...', leeway=none</em>)
• **[upper](http://jinja.pocoo.org/docs/2.9/templates/#upper)**()
• **[urlencode](http://jinja.pocoo.org/docs/2.9/templates/#urlencode)**()
• **[urlize](http://jinja.pocoo.org/docs/2.9/templates/#urlize)**(<em>trim_url_limit=none, nofollow=false, target=none, rel=none</em>)
• **[wordcount](http://jinja.pocoo.org/docs/2.9/templates/#wordcount)**()
• **[wordwrap](http://jinja.pocoo.org/docs/2.9/templates/#wordwrap)**(<em>width=79, break_long_words=true, wrapstring=none</em>)
• **[xmlattr](http://jinja.pocoo.org/docs/2.9/templates/#xmlattr)**(<em>autoescape=true</em>)

Defined in:

lib/filter.cr
lib/filter/collections.cr
lib/filter/escape.cr
lib/filter/html.cr
lib/filter/join.cr
lib/filter/liquid.cr
lib/filter/number.cr
lib/filter/sort.cr
lib/filter/string.cr
lib/filter/var.cr