fix

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

@@ -0,0 +1,271 @@
+/*
+Language: Dart
+Requires: markdown.js
+Author: Maxim Dikun <dikmax@gmail.com>
+Description: Dart a modern, object-oriented language developed by Google. For more information see https://www.dartlang.org/
+Website: https://dart.dev
+Category: scripting
+*/
+
+/** @type LanguageFn */
+function dart(hljs) {
+  const SUBST = {
+    className: 'subst',
+    variants: [ { begin: '\\$[A-Za-z0-9_]+' } ]
+  };
+
+  const BRACED_SUBST = {
+    className: 'subst',
+    variants: [
+      {
+        begin: /\$\{/,
+        end: /\}/
+      }
+    ],
+    keywords: 'true false null this is new super'
+  };
+
+  const NUMBER = {
+    className: 'number',
+    relevance: 0,
+    variants: [
+      { match: /\b[0-9][0-9_]*(\.[0-9][0-9_]*)?([eE][+-]?[0-9][0-9_]*)?\b/ },
+      { match: /\b0[xX][0-9A-Fa-f][0-9A-Fa-f_]*\b/ }
+    ]
+  };
+
+  const STRING = {
+    className: 'string',
+    variants: [
+      {
+        begin: 'r\'\'\'',
+        end: '\'\'\''
+      },
+      {
+        begin: 'r"""',
+        end: '"""'
+      },
+      {
+        begin: 'r\'',
+        end: '\'',
+        illegal: '\\n'
+      },
+      {
+        begin: 'r"',
+        end: '"',
+        illegal: '\\n'
+      },
+      {
+        begin: '\'\'\'',
+        end: '\'\'\'',
+        contains: [
+          hljs.BACKSLASH_ESCAPE,
+          SUBST,
+          BRACED_SUBST
+        ]
+      },
+      {
+        begin: '"""',
+        end: '"""',
+        contains: [
+          hljs.BACKSLASH_ESCAPE,
+          SUBST,
+          BRACED_SUBST
+        ]
+      },
+      {
+        begin: '\'',
+        end: '\'',
+        illegal: '\\n',
+        contains: [
+          hljs.BACKSLASH_ESCAPE,
+          SUBST,
+          BRACED_SUBST
+        ]
+      },
+      {
+        begin: '"',
+        end: '"',
+        illegal: '\\n',
+        contains: [
+          hljs.BACKSLASH_ESCAPE,
+          SUBST,
+          BRACED_SUBST
+        ]
+      }
+    ]
+  };
+  BRACED_SUBST.contains = [
+    NUMBER,
+    STRING
+  ];
+
+  const BUILT_IN_TYPES = [
+    // dart:core
+    'Comparable',
+    'DateTime',
+    'Duration',
+    'Function',
+    'Iterable',
+    'Iterator',
+    'List',
+    'Map',
+    'Match',
+    'Object',
+    'Pattern',
+    'RegExp',
+    'Set',
+    'Stopwatch',
+    'String',
+    'StringBuffer',
+    'StringSink',
+    'Symbol',
+    'Type',
+    'Uri',
+    'bool',
+    'double',
+    'int',
+    'num',
+    // dart:html
+    'Element',
+    'ElementList'
+  ];
+  const NULLABLE_BUILT_IN_TYPES = BUILT_IN_TYPES.map((e) => `${e}?`);
+
+  const BASIC_KEYWORDS = [
+    "abstract",
+    "as",
+    "assert",
+    "async",
+    "await",
+    "base",
+    "break",
+    "case",
+    "catch",
+    "class",
+    "const",
+    "continue",
+    "covariant",
+    "default",
+    "deferred",
+    "do",
+    "dynamic",
+    "else",
+    "enum",
+    "export",
+    "extends",
+    "extension",
+    "external",
+    "factory",
+    "false",
+    "final",
+    "finally",
+    "for",
+    "Function",
+    "get",
+    "hide",
+    "if",
+    "implements",
+    "import",
+    "in",
+    "interface",
+    "is",
+    "late",
+    "library",
+    "mixin",
+    "new",
+    "null",
+    "on",
+    "operator",
+    "part",
+    "required",
+    "rethrow",
+    "return",
+    "sealed",
+    "set",
+    "show",
+    "static",
+    "super",
+    "switch",
+    "sync",
+    "this",
+    "throw",
+    "true",
+    "try",
+    "typedef",
+    "var",
+    "void",
+    "when",
+    "while",
+    "with",
+    "yield"
+  ];
+
+  const KEYWORDS = {
+    keyword: BASIC_KEYWORDS,
+    built_in:
+      BUILT_IN_TYPES
+        .concat(NULLABLE_BUILT_IN_TYPES)
+        .concat([
+          // dart:core
+          'Never',
+          'Null',
+          'dynamic',
+          'print',
+          // dart:html
+          'document',
+          'querySelector',
+          'querySelectorAll',
+          'window'
+        ]),
+    $pattern: /[A-Za-z][A-Za-z0-9_]*\??/
+  };
+
+  return {
+    name: 'Dart',
+    keywords: KEYWORDS,
+    contains: [
+      STRING,
+      hljs.COMMENT(
+        /\/\*\*(?!\/)/,
+        /\*\//,
+        {
+          subLanguage: 'markdown',
+          relevance: 0
+        }
+      ),
+      hljs.COMMENT(
+        /\/{3,} ?/,
+        /$/, { contains: [
+          {
+            subLanguage: 'markdown',
+            begin: '.',
+            end: '$',
+            relevance: 0
+          }
+        ] }
+      ),
+      hljs.C_LINE_COMMENT_MODE,
+      hljs.C_BLOCK_COMMENT_MODE,
+      {
+        className: 'class',
+        beginKeywords: 'class interface',
+        end: /\{/,
+        excludeEnd: true,
+        contains: [
+          { beginKeywords: 'extends implements' },
+          hljs.UNDERSCORE_TITLE_MODE
+        ]
+      },
+      NUMBER,
+      {
+        className: 'meta',
+        begin: '@[A-Za-z]+'
+      },
+      { begin: '=>' // No markup, just a relevance booster
+      }
+    ]
+  };
+}
+
+export { dart as default };