twig.lang: add twig language spec

1 files changed, 346 insertions, 0 deletions

diff --git a/data/language-specs/twig.lang b/data/language-specs/twig.lang
new file mode 100644
index 00000000..2f7a8134
--- /dev/null
+++ b/data/language-specs/twig.lang
@@ -0,0 +1,346 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ This file is part of GtkSourceView
+
+ Author: Gerry Demaret <gerry@tigron.be>
+ Copyright (C) 2022 Gerry Demaret <gerry@tigron.be>
+
+ GtkSourceView is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ GtkSourceView is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this library; if not, see <http://www.gnu.org/licenses/>.
+
+-->
+<language id="twig" name="Twig" version="2.0" _section="Markup">
+  <metadata>
+    <property name="mimetypes">text/x-twig</property>
+    <property name="globs">*.twig</property>
+    <property name="line-comment-start">#</property>
+    <property name="block-comment-start">{#</property>
+    <property name="block-comment-end">#}</property>
+  </metadata>
+
+  <styles>
+    <style id="comment" name="Comment" map-to="def:comment"/>
+    <style id="error" name="Error" map-to="def:error"/>
+    <style id="variable" name="Variable" map-to="def:identifier"/>
+    <style id="escape" name="Escaped Character" map-to="def:special-char"/>
+    <style id="string" name="String" map-to="def:string"/>
+    <style id="here-doc" name="Heredoc" map-to="def:string"/>
+    <style id="here-doc-bound" name="Heredoc Bound" map-to="def:keyword"/>
+    <style id="keyword" name="Keyword" map-to="def:keyword"/>
+    <style id="operator" name="Operator" map-to="def:operator"/>
+    <style id="filters" name="Null Value" map-to="def:boolean"/>
+    <style id="tests" name="tests" map-to="def:boolean"/>
+    <style id="boolean" name="Boolean value" map-to="def:boolean"/>
+    <style id="floating-point" name="Floating point number" map-to="def:floating-point"/>
+    <style id="decimal" name="Decimal number" map-to="def:decimal"/>
+    <style id="octal" name="Octal number" map-to="def:base-n-integer"/>
+    <style id="hexadecimal" name="Hexadecimal number" map-to="def:base-n-integer"/>
+  </styles>
+
+  <definitions>
+    <!-- Html comments are more permissive than xml comments -->
+    <context id="comment" style-ref="comment">
+        <start>&lt;!--</start>
+        <end>--\s*&gt;</end>
+        <include>
+            <context ref="def:in-comment"/>
+        </include>
+    </context>
+
+    <context id="twig-comment" style-ref="comment">
+        <start>&#123;&#35;</start>
+        <end>&#35;&#125;</end>
+        <include>
+            <context ref="def:in-line-comment"/>
+        </include>
+    </context>
+
+    <context id="close-comment-outside-comment" style-ref="error">
+      <match>&#35;&#125;(?!&#123;&#35;)</match>
+    </context>
+
+    <context id="escape" style-ref="escape">
+      <match>\\((\\|"|n|t|\$|r)|[0-7]{1,3}|x[0-9a-fA-F]{1,2})</match>
+    </context>
+
+    <context id="variable" style-ref="variable">
+      <match>[$]+[a-zA-Z_][a-zA-Z0-9_]*</match>
+    </context>
+
+    <context id="array-operators" style-ref="variable">
+      <match>(\[|\])</match>
+    </context>
+
+    <context id="string-var">
+      <include>
+        <context ref="variable"/>
+        <context id="curly-var" style-ref="variable" >
+          <start>{(?=\$)</start>
+          <end>}</end>
+          <include>
+            <context ref="string-var"/>
+          </include>
+        </context>
+        <context id="backwards-curly-var" style-ref="variable">
+          <start>\${</start>
+          <end>}</end>
+          <include>
+            <context ref="string-var"/>
+          </include>
+        </context>
+      </include>
+    </context>
+
+    <context id="double-quoted-string" style-ref="string">
+      <start>"</start>
+      <end>"</end>
+      <include>
+        <context ref="escape"/>
+        <context ref="string-var"/>
+        <context ref="def:line-continue"/>
+      </include>
+    </context>
+
+    <context id="single-quoted-string" style-ref="string">
+      <start>'</start>
+      <end>'</end>
+      <include>
+        <context style-ref="def:special-char">
+          <match>\\['\\]</match>
+        </context>
+        <context ref="def:line-continue"/>
+      </include>
+    </context>
+
+    <context id="backtick-string" style-ref="string" extend-parent="false">
+      <start>`</start>
+      <end>`</end>
+      <include>
+        <context ref="escape"/>
+        <context ref="def:line-continue"/>
+      </include>
+    </context>
+
+    <context id="here-doc-string" style-ref="here-doc" extend-parent="true">
+      <start>(&lt;&lt;&lt;)\s?([a-zA-Z_][a-zA-Z0-9_]*)</start>
+      <end>^(\%{2@start});?$</end>
+      <include>
+        <context sub-pattern="0" where="start" style-ref="here-doc-bound"/>
+        <context sub-pattern="1" where="end" style-ref="here-doc-bound"/>
+        <context ref="escape"/>
+        <context ref="string-var"/>
+        <context ref="def:line-continue"/>
+      </include>
+    </context>
+
+    <context id="keywords" style-ref="keyword">
+        <keyword>block</keyword>
+        <keyword>endblock</keyword>
+        <keyword>capture</keyword>
+        <keyword>config_load</keyword>
+        <keyword>for</keyword>
+        <keyword>foreach</keyword>
+        <keyword>foreachelse</keyword>
+        <keyword>endfor</keyword>
+        <keyword>if</keyword>
+        <keyword>elseif</keyword>
+        <keyword>endif</keyword>
+        <keyword>extends</keyword>
+        <keyword>ifequal</keyword>
+        <keyword>endifequal</keyword>
+        <keyword>else</keyword>
+        <keyword>include</keyword>
+        <keyword>include_php</keyword>
+        <keyword>insert</keyword>
+        <keyword>ldelim</keyword>
+        <keyword>rdelim</keyword>
+        <keyword>literal</keyword>
+        <keyword>php</keyword>
+        <keyword>section</keyword>
+        <keyword>sectionelse</keyword>
+        <keyword>strip</keyword>
+        <keyword>assign</keyword>
+        <keyword>counter</keyword>
+        <keyword>cycle</keyword>
+        <keyword>range</keyword>
+        <keyword>constant</keyword>
+        <keyword>parent</keyword>
+        <keyword>debug</keyword>
+        <keyword>eval</keyword>
+        <keyword>fetch</keyword>
+        <keyword>html_checkboxes</keyword>
+        <keyword>html_image</keyword>
+        <keyword>html_options</keyword>
+        <keyword>html_radios</keyword>
+        <keyword>html_select_date</keyword>
+        <keyword>html_select_time</keyword>
+        <keyword>html_table</keyword>
+        <keyword>mailto</keyword>
+        <keyword>math</keyword>
+        <keyword>popup</keyword>
+        <keyword>popup_init</keyword>
+        <keyword>textformat</keyword>
+        <keyword>macro</keyword>
+        <keyword>endmacro</keyword>
+        <keyword>in</keyword>
+        <keyword>import</keyword>
+        <keyword>as</keyword>
+        <keyword>filter</keyword>
+        <keyword>endfilter</keyword>
+        <keyword>set</keyword>
+        <keyword>endset</keyword>
+        <keyword>from</keyword>
+        <keyword>not</keyword>
+        <keyword>is</keyword>
+        <keyword>autoescape</keyword>
+        <keyword>endautoescape</keyword>
+        <keyword>use</keyword>
+        <keyword>with</keyword>
+        <keyword>spaceless</keyword>
+        <keyword>endspaceless</keyword>
+        <keyword>raw</keyword>
+        <keyword>endraw</keyword>
+        <keyword>trans</keyword>
+    </context>
+
+    <context id="operators" style-ref="operator" extend-parent="false">
+      <match>[-.~^@,;:/%|\=\+\*\!\?&amp;&lt;&gt;()]</match>
+    </context>
+
+    <context id="filters" style-ref="filters">
+      <prefix>(?i)\b</prefix> <!-- case insensitive -->
+        <keyword>capitalize</keyword>
+        <keyword>cat</keyword>
+        <keyword>count_characters</keyword>
+        <keyword>count_paragraphs</keyword>
+        <keyword>count_sentences</keyword>
+        <keyword>count_words</keyword>
+        <keyword>date</keyword>
+        <keyword>date_format</keyword>
+        <keyword>default</keyword>
+        <keyword>escape</keyword>
+        <keyword>defined</keyword>
+        <keyword>format</keyword>
+        <keyword>indent</keyword>
+        <keyword>join</keyword>
+        <keyword>length</keyword>
+        <keyword>lower</keyword>
+        <keyword>merge</keyword>
+        <keyword>nl2br</keyword>
+        <keyword>regex_replace</keyword>
+        <keyword>replace</keyword>
+        <keyword>url_encode</keyword>
+        <keyword>json_encode</keyword>
+        <keyword>striptags</keyword>
+        <keyword>reverse</keyword>
+        <keyword>keys</keyword>
+        <keyword>e</keyword>
+        <keyword>title</keyword>
+        <keyword>safe</keyword>
+        <keyword>sort</keyword>
+        <keyword>spacify</keyword>
+        <keyword>string_format</keyword>
+        <keyword>strip</keyword>
+        <keyword>strip_tags</keyword>
+        <keyword>truncate</keyword>
+        <keyword>upper</keyword>
+        <keyword>wordwrap</keyword>
+    </context>
+
+    <context id="tests" style-ref="tests">
+      <prefix>(?i)\b</prefix> <!-- case insensitive -->
+        <keyword>divisibleby</keyword>
+        <keyword>none</keyword>
+        <keyword>even</keyword>
+        <keyword>odd</keyword>
+        <keyword>sameas</keyword>
+        <keyword>empty</keyword>
+    </context>
+
+    <context id="boolean" style-ref="boolean">
+      <prefix>(?i)\b</prefix> <!-- case insensitive -->
+      <keyword>false</keyword>
+      <keyword>true</keyword>
+    </context>
+
+    <context id="float" style-ref="floating-point">
+      <match extended="true">
+        (?&lt;![\w\.])
+        ([0-9]+[Ee][+-]?[0-9]+ |
+         ([0-9]*\.[0-9]+ | [0-9]+\.[0-9]*)([Ee][+-]?[0-9]+)?)
+        (?![\w\.])
+      </match>
+    </context>
+
+    <context id="decimal-number" style-ref="decimal">
+      <match extended="true">
+        (?&lt;![\w\.])
+        [+-]?([1-9][0-9]*|0)
+        (?![\w\.])
+      </match>
+    </context>
+
+    <context id="octal-number" style-ref="octal">
+      <match extended="true">
+        (?&lt;![\w\.])
+        [+-]?0[0-7]+
+        (?![\w\.])
+      </match>
+    </context>
+
+    <context id="hexadecimal-number" style-ref="hexadecimal">
+      <match extended="true">
+        (?&lt;![\w\.])
+        [+-]?0x[0-9a-fA-F]+
+        (?![\w\.])
+      </match>
+    </context>
+
+    <context id="twig-block" style-ref="comment" end-at-line-end="true">
+      <start>&#123;(&#123;|&#37;)(/?)</start>
+      <end>(&#125;|&#37;)&#125;</end>
+      <include>
+        <context sub-pattern="0" where="start" style-ref="boolean"/>
+        <context sub-pattern="0" where="end" style-ref="boolean"/>
+        <context ref="double-quoted-string"/>
+        <context ref="single-quoted-string"/>
+        <context ref="backtick-string"/>
+        <context ref="here-doc-string"/>
+        <context ref="variable"/>
+        <context ref="array-operators"/>
+        <context ref="keywords"/>
+        <context ref="operators"/>
+        <context ref="filters"/>
+        <context ref="tests"/>
+        <context ref="boolean"/>
+        <context ref="float"/>
+        <context ref="decimal-number"/>
+        <context ref="octal-number"/>
+        <context ref="hexadecimal-number"/>
+      </include>
+    </context>
+
+    <replace id="html:embedded-lang-hook" ref="twig-block"/>
+
+    <context id="twig">
+      <include>
+        <context ref="twig-block"/>
+        <context ref="html:html"/>
+        <context ref="twig-comment"/>
+        <context ref="close-comment-outside-comment"/>
+      </include>
+    </context>
+
+  </definitions>
+</language>