fix

book/node_modules/highlight.js/es/languages/prolog.js

@@ -0,0 +1,97 @@
+/*
+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: /$/,
+    contains: [ hljs.PHRASAL_WORDS_MODE ]
+  };
+
+  const BACKTICK_STRING = {
+
+    className: 'string',
+    begin: /`/,
+    end: /`/,
+    contains: [ hljs.BACKSLASH_ESCAPE ]
+  };
+
+  const CHAR_CODE = {
+    className: 'string', // 0'a etc.
+    begin: /0'(\\'|.)/
+  };
+
+  const SPACE_CODE = {
+    className: 'string',
+    begin: /0'\\s/ // 0'\s
+  };
+
+  const PRED_OP = { // relevance booster
+    begin: /:-/ };
+
+  const inner = [
+
+    ATOM,
+    VAR,
+    PARENTED,
+    PRED_OP,
+    LIST,
+    LINE_COMMENT,
+    hljs.C_BLOCK_COMMENT_MODE,
+    hljs.QUOTE_STRING_MODE,
+    hljs.APOS_STRING_MODE,
+    BACKTICK_STRING,
+    CHAR_CODE,
+    SPACE_CODE,
+    hljs.C_NUMBER_MODE
+  ];
+
+  PARENTED.contains = inner;
+  LIST.contains = inner;
+
+  return {
+    name: 'Prolog',
+    contains: inner.concat([
+      { // relevance booster
+        begin: /\.$/ }
+    ])
+  };
+}
+
+export { prolog as default };