docs: add Twig's built-in tests, filters, functions and tags

Signed-off-by: tbreuss <[email protected]>

website/site/data/twig_filters_builtin.yml

@@ -0,0 +1,55 @@
+---
+- name: abs
+- name: batch
+- name: capitalize
+- name: column
+- name: convert_encoding
+- name: country_name
+- name: currency_name
+- name: currency_symbol
+- name: data_uri
+- name: date
+- name: date_modify
+- name: default
+- name: escape
+- name: filter
+- name: first
+- name: format
+- name: format_currency
+- name: format_date
+- name: format_datetime
+- name: format_number
+- name: format_time
+- name: html_to_markdown
+- name: inline_css
+- name: inky_to_html
+- name: join
+- name: json_encode
+- name: keys
+- name: language_name
+- name: last
+- name: length
+- name: locale_name
+- name: lower
+- name: map
+- name: markdown_to_html
+- name: merge
+- name: nl2br
+- name: number_format
+- name: raw
+- name: reduce
+- name: replace
+- name: reverse
+- name: round
+- name: slice
+- name: slug
+- name: sort
+- name: spaceless
+- name: split
+- name: striptags
+- name: timezone_name
+- name: title
+- name: trim
+- name: u
+- name: upper
+- name: url_encode

website/site/data/twig_functions_builtin.yml

@@ -0,0 +1,17 @@
+---
+- name: attribute
+- name: block
+- name: constant
+- name: cycle
+- name: date
+- name: dump
+- name: html_classes
+- name: include
+- name: max
+- name: min
+- name: parent
+- name: random
+- name: range
+- name: source
+- name: country_timezones
+- name: template_from_string

website/site/data/twig_tags_builtin.yml

@@ -0,0 +1,21 @@
+---
+- name: apply
+- name: autoescape
+- name: block
+- name: cache
+- name: deprecated
+- name: do
+- name: embed
+- name: extends
+- name: flush
+- name: for
+- name: from
+- name: if
+- name: import
+- name: include
+- name: macro
+- name: sandbox
+- name: set
+- name: use
+- name: verbatim
+- name: with

website/site/data/twig_tests_builtin.yml

@@ -0,0 +1,12 @@
+---
+- name: constant
+- name: defined
+- name: divisible by
+  slug: divisibleby
+- name: empty
+- name: even
+- name: iterable
+- name: 'null'
+- name: odd
+- name: same as
+  slug: sameas  

website/site/pages/2-doc/5-indepth/5-twig-filters.md

@@ -6,6 +6,17 @@ layout: doc
 # Twig Filters
 
 Herbie is using [Twig Filters](https://twig.symfony.com/doc/3.x/filters/index.html) for modifying variables in layout and content files.
-In addition to the built-in filters of Twig itself, the following filters are available.
+The following filters are available.
 
 {{ snippet("@site/snippets/twig_features.twig", {type:"twig_filters"}) }}
+
+## Built-in Filters
+
+In addition to the filters mentioned above, Twig's built-in filters are of course also available.
+Please note that some of the filters may require the installation of additional Composer packages.
+
+<ul>
+{% for filter in site.data.twig_filters_builtin %}
+<li><a href="https://twig.symfony.com/doc/3.x/filters/{{ filter.name }}.html" target="_blank">{{ filter.name }}</a></li>
+{% endfor %}
+</ul>

website/site/pages/2-doc/5-indepth/6-twig-functions.md

@@ -9,3 +9,14 @@ Herbie is using [Twig Functions](https://twig.symfony.com/doc/3.x/functions/inde
 In addition to the built-in functions of Twig itself, the following functions are available.
 
 {{ snippet("@site/snippets/twig_features.twig", {type:"twig_functions"}) }}
+
+## Built-in Functions
+
+In addition to the functions mentioned above, Twig's built-in functions are of course also available.
+Please note that some of the functions may require the installation of additional Composer packages.
+
+<ul>
+{% for function in site.data.twig_functions_builtin %}
+<li><a href="https://twig.symfony.com/doc/3.x/functions/{{ function.name }}.html" target="_blank">{{ function.name }}</a></li>
+{% endfor %}
+</ul>

website/site/pages/2-doc/5-indepth/8-twig-tags.md

@@ -0,0 +1,15 @@
+---
+title: Twig Tags
+layout: doc
+---
+
+# Twig Tags
+
+Herbie does not provide its own Twig tags, but the tags provided by Twig are of course available. 
+Please note that some of the tags may require the installation of additional Composer packages.
+
+<ul>
+{% for tag in site.data.twig_tags_builtin %}
+<li><a href="https://twig.symfony.com/doc/3.x/tags/{{ tag.name }}.html" target="_blank">{{ tag.name }}</a></li>
+{% endfor %}
+</ul>

website/site/pages/2-doc/5-indepth/8-twig-tests.md

@@ -9,3 +9,14 @@ Herbie is using [Twig Tests](https://twig.symfony.com/doc/3.x/tests/index.html)
 In addition to the built-in tests of Twig, the following tests are available.
 
 {{ snippet("@site/snippets/twig_features.twig", {type:"twig_tests"}) }}
+
+## Built-in Tests
+
+In addition to the tests mentioned above, Twig's built-in tests are of course also available.
+Please note that some of the tests may require the installation of additional Composer packages.
+
+<ul>
+{% for test in site.data.twig_tests_builtin %}
+<li><a href="https://twig.symfony.com/doc/3.x/tests/{{ test.slug ?: test.name }}.html" target="_blank">{{ test.name }}</a></li>
+{% endfor %}
+</ul>