1 files changed, 107 insertions, 0 deletions
diff --git a/htroot/js/languages/prolog.js b/htroot/js/languages/prolog.js
new file mode 100644
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+++ b/htroot/js/languages/prolog.js
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+/*! `prolog` grammar compiled for Highlight.js 11.11.1 */
+  (function(){
+    var hljsGrammar = (function () {
+  'use strict';
+
+  /*
+  Language: Prolog
+  Description: Prolog is a general purpose logic programming language associated with artificial intelligence and computational linguistics.
+  Author: Raivo Laanemets <raivo@infdot.com>
+  Website: https://en.wikipedia.org/wiki/Prolog
+  Category: functional
+  */
+
+  function prolog(hljs) {
+    const ATOM = {
+
+      begin: /[a-z][A-Za-z0-9_]*/,
+      relevance: 0
+    };
+
+    const VAR = {
+
+      className: 'symbol',
+      variants: [
+        { begin: /[A-Z][a-zA-Z0-9_]*/ },
+        { begin: /_[A-Za-z0-9_]*/ }
+      ],
+      relevance: 0
+    };
+
+    const PARENTED = {
+
+      begin: /\(/,
+      end: /\)/,
+      relevance: 0
+    };
+
+    const LIST = {
+
+      begin: /\[/,
+      end: /\]/
+    };
+
+    const LINE_COMMENT = {
+
+      className: 'comment',
+      begin: /%/,
+      end: /$/,
+      contains: [ hljs.PHRASAL_WORDS_MODE ]
+    };
+
+    const BACKTICK_STRING = {
+
+      className: 'string',
+      begin: /`/,
+      end: /`/,
+      contains: [ hljs.BACKSLASH_ESCAPE ]
+    };
+
+    const CHAR_CODE = {
+      className: 'string', // 0'a etc.
+      begin: /0'(\\'|.)/
+    };
+
+    const SPACE_CODE = {
+      className: 'string',
+      begin: /0'\\s/ // 0'\s
+    };
+
+    const PRED_OP = { // relevance booster
+      begin: /:-/ };
+
+    const inner = [
+
+      ATOM,
+      VAR,
+      PARENTED,
+      PRED_OP,
+      LIST,
+      LINE_COMMENT,
+      hljs.C_BLOCK_COMMENT_MODE,
+      hljs.QUOTE_STRING_MODE,
+      hljs.APOS_STRING_MODE,
+      BACKTICK_STRING,
+      CHAR_CODE,
+      SPACE_CODE,
+      hljs.C_NUMBER_MODE
+    ];
+
+    PARENTED.contains = inner;
+    LIST.contains = inner;
+
+    return {
+      name: 'Prolog',
+      contains: inner.concat([
+        { // relevance booster
+          begin: /\.$/ }
+      ])
+    };
+  }
+
+  return prolog;
+
+})();
+
+    hljs.registerLanguage('prolog', hljsGrammar);
+  })();
+\ No newline at end of file