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app_vue/node_modules/highlight.js/lib/languages/haskell.js

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+/*
+Language: Haskell
+Author: Jeremy Hull <sourdrums@gmail.com>
+Contributors: Zena Treep <zena.treep@gmail.com>
+Website: https://www.haskell.org
+Category: functional
+*/
+
+function haskell(hljs) {
+  const COMMENT = {
+    variants: [
+      hljs.COMMENT('--', '$'),
+      hljs.COMMENT(
+        /\{-/,
+        /-\}/,
+        {
+          contains: ['self']
+        }
+      )
+    ]
+  };
+
+  const PRAGMA = {
+    className: 'meta',
+    begin: /\{-#/,
+    end: /#-\}/
+  };
+
+  const PREPROCESSOR = {
+    className: 'meta',
+    begin: '^#',
+    end: '$'
+  };
+
+  const CONSTRUCTOR = {
+    className: 'type',
+    begin: '\\b[A-Z][\\w\']*', // TODO: other constructors (build-in, infix).
+    relevance: 0
+  };
+
+  const LIST = {
+    begin: '\\(',
+    end: '\\)',
+    illegal: '"',
+    contains: [
+      PRAGMA,
+      PREPROCESSOR,
+      {
+        className: 'type',
+        begin: '\\b[A-Z][\\w]*(\\((\\.\\.|,|\\w+)\\))?'
+      },
+      hljs.inherit(hljs.TITLE_MODE, {
+        begin: '[_a-z][\\w\']*'
+      }),
+      COMMENT
+    ]
+  };
+
+  const RECORD = {
+    begin: /\{/,
+    end: /\}/,
+    contains: LIST.contains
+  };
+
+  return {
+    name: 'Haskell',
+    aliases: ['hs'],
+    keywords:
+      'let in if then else case of where do module import hiding ' +
+      'qualified type data newtype deriving class instance as default ' +
+      'infix infixl infixr foreign export ccall stdcall cplusplus ' +
+      'jvm dotnet safe unsafe family forall mdo proc rec',
+    contains: [
+      // Top-level constructions.
+      {
+        beginKeywords: 'module',
+        end: 'where',
+        keywords: 'module where',
+        contains: [
+          LIST,
+          COMMENT
+        ],
+        illegal: '\\W\\.|;'
+      },
+      {
+        begin: '\\bimport\\b',
+        end: '$',
+        keywords: 'import qualified as hiding',
+        contains: [
+          LIST,
+          COMMENT
+        ],
+        illegal: '\\W\\.|;'
+      },
+      {
+        className: 'class',
+        begin: '^(\\s*)?(class|instance)\\b',
+        end: 'where',
+        keywords: 'class family instance where',
+        contains: [
+          CONSTRUCTOR,
+          LIST,
+          COMMENT
+        ]
+      },
+      {
+        className: 'class',
+        begin: '\\b(data|(new)?type)\\b',
+        end: '$',
+        keywords: 'data family type newtype deriving',
+        contains: [
+          PRAGMA,
+          CONSTRUCTOR,
+          LIST,
+          RECORD,
+          COMMENT
+        ]
+      },
+      {
+        beginKeywords: 'default',
+        end: '$',
+        contains: [
+          CONSTRUCTOR,
+          LIST,
+          COMMENT
+        ]
+      },
+      {
+        beginKeywords: 'infix infixl infixr',
+        end: '$',
+        contains: [
+          hljs.C_NUMBER_MODE,
+          COMMENT
+        ]
+      },
+      {
+        begin: '\\bforeign\\b',
+        end: '$',
+        keywords: 'foreign import export ccall stdcall cplusplus jvm ' +
+                  'dotnet safe unsafe',
+        contains: [
+          CONSTRUCTOR,
+          hljs.QUOTE_STRING_MODE,
+          COMMENT
+        ]
+      },
+      {
+        className: 'meta',
+        begin: '#!\\/usr\\/bin\\/env\ runhaskell',
+        end: '$'
+      },
+      // "Whitespaces".
+      PRAGMA,
+      PREPROCESSOR,
+
+      // Literals and names.
+
+      // TODO: characters.
+      hljs.QUOTE_STRING_MODE,
+      hljs.C_NUMBER_MODE,
+      CONSTRUCTOR,
+      hljs.inherit(hljs.TITLE_MODE, {
+        begin: '^[_a-z][\\w\']*'
+      }),
+      COMMENT,
+      { // No markup, relevance booster
+        begin: '->|<-'
+      }
+    ]
+  };
+}
+
+module.exports = haskell;