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.yarn/unplugged/highlight.js-npm-9.18.5-571500f48d/node_modules/highlight.js/lib/languages/yaml.js

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+module.exports = function(hljs) {
+  var LITERALS = 'true false yes no null';
+
+  // Define keys as starting with a word character
+  // ...containing word chars, spaces, colons, forward-slashes, hyphens and periods
+  // ...and ending with a colon followed immediately by a space, tab or newline.
+  // The YAML spec allows for much more than this, but this covers most use-cases.
+  var KEY = {
+    className: 'attr',
+    variants: [
+      { begin: '\\w[\\w :\\/.-]*:(?=[ \t]|$)' },
+      { begin: '"\\w[\\w :\\/.-]*":(?=[ \t]|$)' }, //double quoted keys
+      { begin: '\'\\w[\\w :\\/.-]*\':(?=[ \t]|$)' } //single quoted keys
+    ]
+  };
+
+  var TEMPLATE_VARIABLES = {
+    className: 'template-variable',
+    variants: [
+      { begin: '\{\{', end: '\}\}' }, // jinja templates Ansible
+      { begin: '%\{', end: '\}' } // Ruby i18n
+    ]
+  };
+  var STRING = {
+    className: 'string',
+    relevance: 0,
+    variants: [
+      {begin: /'/, end: /'/},
+      {begin: /"/, end: /"/},
+      {begin: /\S+/}
+    ],
+    contains: [
+      hljs.BACKSLASH_ESCAPE,
+      TEMPLATE_VARIABLES
+    ]
+  };
+
+  return {
+    case_insensitive: true,
+    aliases: ['yml', 'YAML', 'yaml'],
+    contains: [
+      KEY,
+      {
+        className: 'meta',
+        begin: '^---\s*$',
+        relevance: 10
+      },
+      { // multi line string
+        // Blocks start with a | or > followed by a newline
+        //
+        // Indentation of subsequent lines must be the same to
+        // be considered part of the block
+        className: 'string',
+        begin: '[\\|>]([0-9]?[+-])?[ ]*\\n( *)[\\S ]+\\n(\\2[\\S ]+\\n?)*',
+      },
+      { // Ruby/Rails erb
+        begin: '<%[%=-]?', end: '[%-]?%>',
+        subLanguage: 'ruby',
+        excludeBegin: true,
+        excludeEnd: true,
+        relevance: 0
+      },
+      { // local tags
+        className: 'type',
+        begin: '!' + hljs.UNDERSCORE_IDENT_RE,
+      },
+      { // data type
+        className: 'type',
+        begin: '!!' + hljs.UNDERSCORE_IDENT_RE,
+      },
+      { // fragment id &ref
+        className: 'meta',
+        begin: '&' + hljs.UNDERSCORE_IDENT_RE + '$',
+      },
+      { // fragment reference *ref
+        className: 'meta',
+        begin: '\\*' + hljs.UNDERSCORE_IDENT_RE + '$'
+      },
+      { // array listing
+        className: 'bullet',
+      // TODO: remove |$ hack when we have proper look-ahead support
+      begin: '\\-(?=[ ]|$)',
+        relevance: 0
+      },
+      hljs.HASH_COMMENT_MODE,
+      {
+        beginKeywords: LITERALS,
+        keywords: {literal: LITERALS}
+      },
+      // numbers are any valid C-style number that
+      // sit isolated from other words
+      {
+        className: 'number',
+        begin: hljs.C_NUMBER_RE + '\\b'
+      },
+      STRING
+    ]
+  };
+};