first commit

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

@@ -0,0 +1,324 @@
+/**
+ * @param {string} value
+ * @returns {RegExp}
+ * */
+
+/**
+ * @param {RegExp | string } re
+ * @returns {string}
+ */
+function source(re) {
+  if (!re) return null;
+  if (typeof re === "string") return re;
+
+  return re.source;
+}
+
+/**
+ * @param {RegExp | string } re
+ * @returns {string}
+ */
+function anyNumberOfTimes(re) {
+  return concat('(', re, ')*');
+}
+
+/**
+ * @param {RegExp | string } re
+ * @returns {string}
+ */
+function optional(re) {
+  return concat('(', re, ')?');
+}
+
+/**
+ * @param {...(RegExp | string) } args
+ * @returns {string}
+ */
+function concat(...args) {
+  const joined = args.map((x) => source(x)).join("");
+  return joined;
+}
+
+/**
+ * Any of the passed expresssions may match
+ *
+ * Creates a huge this | this | that | that match
+ * @param {(RegExp | string)[] } args
+ * @returns {string}
+ */
+function either(...args) {
+  const joined = '(' + args.map((x) => source(x)).join("|") + ")";
+  return joined;
+}
+
+/*
+Language: Handlebars
+Requires: xml.js
+Author: Robin Ward <robin.ward@gmail.com>
+Description: Matcher for Handlebars as well as EmberJS additions.
+Website: https://handlebarsjs.com
+Category: template
+*/
+
+function handlebars(hljs) {
+  const BUILT_INS = {
+    'builtin-name': [
+      'action',
+      'bindattr',
+      'collection',
+      'component',
+      'concat',
+      'debugger',
+      'each',
+      'each-in',
+      'get',
+      'hash',
+      'if',
+      'in',
+      'input',
+      'link-to',
+      'loc',
+      'log',
+      'lookup',
+      'mut',
+      'outlet',
+      'partial',
+      'query-params',
+      'render',
+      'template',
+      'textarea',
+      'unbound',
+      'unless',
+      'view',
+      'with',
+      'yield'
+    ]
+  };
+
+  const LITERALS = {
+    literal: [
+      'true',
+      'false',
+      'undefined',
+      'null'
+    ]
+  };
+
+  // as defined in https://handlebarsjs.com/guide/expressions.html#literal-segments
+  // this regex matches literal segments like ' abc ' or [ abc ] as well as helpers and paths
+  // like a/b, ./abc/cde, and abc.bcd
+
+  const DOUBLE_QUOTED_ID_REGEX = /""|"[^"]+"/;
+  const SINGLE_QUOTED_ID_REGEX = /''|'[^']+'/;
+  const BRACKET_QUOTED_ID_REGEX = /\[\]|\[[^\]]+\]/;
+  const PLAIN_ID_REGEX = /[^\s!"#%&'()*+,.\/;<=>@\[\\\]^`{|}~]+/;
+  const PATH_DELIMITER_REGEX = /(\.|\/)/;
+  const ANY_ID = either(
+    DOUBLE_QUOTED_ID_REGEX,
+    SINGLE_QUOTED_ID_REGEX,
+    BRACKET_QUOTED_ID_REGEX,
+    PLAIN_ID_REGEX
+    );
+
+  const IDENTIFIER_REGEX = concat(
+    optional(/\.|\.\/|\//), // relative or absolute path
+    ANY_ID,
+    anyNumberOfTimes(concat(
+      PATH_DELIMITER_REGEX,
+      ANY_ID
+    ))
+  );
+
+  // identifier followed by a equal-sign (without the equal sign)
+  const HASH_PARAM_REGEX = concat(
+    '(',
+    BRACKET_QUOTED_ID_REGEX, '|',
+    PLAIN_ID_REGEX,
+    ')(?==)'
+  );
+
+  const HELPER_NAME_OR_PATH_EXPRESSION = {
+    begin: IDENTIFIER_REGEX,
+    lexemes: /[\w.\/]+/
+  };
+
+  const HELPER_PARAMETER = hljs.inherit(HELPER_NAME_OR_PATH_EXPRESSION, {
+    keywords: LITERALS
+  });
+
+  const SUB_EXPRESSION = {
+    begin: /\(/,
+    end: /\)/
+    // the "contains" is added below when all necessary sub-modes are defined
+  };
+
+  const HASH = {
+    // fka "attribute-assignment", parameters of the form 'key=value'
+    className: 'attr',
+    begin: HASH_PARAM_REGEX,
+    relevance: 0,
+    starts: {
+      begin: /=/,
+      end: /=/,
+      starts: {
+        contains: [
+          hljs.NUMBER_MODE,
+          hljs.QUOTE_STRING_MODE,
+          hljs.APOS_STRING_MODE,
+          HELPER_PARAMETER,
+          SUB_EXPRESSION
+        ]
+      }
+    }
+  };
+
+  const BLOCK_PARAMS = {
+    // parameters of the form '{{#with x as | y |}}...{{/with}}'
+    begin: /as\s+\|/,
+    keywords: {
+      keyword: 'as'
+    },
+    end: /\|/,
+    contains: [
+      {
+        // define sub-mode in order to prevent highlighting of block-parameter named "as"
+        begin: /\w+/
+      }
+    ]
+  };
+
+  const HELPER_PARAMETERS = {
+    contains: [
+      hljs.NUMBER_MODE,
+      hljs.QUOTE_STRING_MODE,
+      hljs.APOS_STRING_MODE,
+      BLOCK_PARAMS,
+      HASH,
+      HELPER_PARAMETER,
+      SUB_EXPRESSION
+    ],
+    returnEnd: true
+    // the property "end" is defined through inheritance when the mode is used. If depends
+    // on the surrounding mode, but "endsWithParent" does not work here (i.e. it includes the
+    // end-token of the surrounding mode)
+  };
+
+  const SUB_EXPRESSION_CONTENTS = hljs.inherit(HELPER_NAME_OR_PATH_EXPRESSION, {
+    className: 'name',
+    keywords: BUILT_INS,
+    starts: hljs.inherit(HELPER_PARAMETERS, {
+      end: /\)/
+    })
+  });
+
+  SUB_EXPRESSION.contains = [SUB_EXPRESSION_CONTENTS];
+
+  const OPENING_BLOCK_MUSTACHE_CONTENTS = hljs.inherit(HELPER_NAME_OR_PATH_EXPRESSION, {
+    keywords: BUILT_INS,
+    className: 'name',
+    starts: hljs.inherit(HELPER_PARAMETERS, {
+      end: /\}\}/
+    })
+  });
+
+  const CLOSING_BLOCK_MUSTACHE_CONTENTS = hljs.inherit(HELPER_NAME_OR_PATH_EXPRESSION, {
+    keywords: BUILT_INS,
+    className: 'name'
+  });
+
+  const BASIC_MUSTACHE_CONTENTS = hljs.inherit(HELPER_NAME_OR_PATH_EXPRESSION, {
+    className: 'name',
+    keywords: BUILT_INS,
+    starts: hljs.inherit(HELPER_PARAMETERS, {
+      end: /\}\}/
+    })
+  });
+
+  const ESCAPE_MUSTACHE_WITH_PRECEEDING_BACKSLASH = {
+    begin: /\\\{\{/,
+    skip: true
+  };
+  const PREVENT_ESCAPE_WITH_ANOTHER_PRECEEDING_BACKSLASH = {
+    begin: /\\\\(?=\{\{)/,
+    skip: true
+  };
+
+  return {
+    name: 'Handlebars',
+    aliases: [
+      'hbs',
+      'html.hbs',
+      'html.handlebars',
+      'htmlbars'
+    ],
+    case_insensitive: true,
+    subLanguage: 'xml',
+    contains: [
+      ESCAPE_MUSTACHE_WITH_PRECEEDING_BACKSLASH,
+      PREVENT_ESCAPE_WITH_ANOTHER_PRECEEDING_BACKSLASH,
+      hljs.COMMENT(/\{\{!--/, /--\}\}/),
+      hljs.COMMENT(/\{\{!/, /\}\}/),
+      {
+        // open raw block "{{{{raw}}}} content not evaluated {{{{/raw}}}}"
+        className: 'template-tag',
+        begin: /\{\{\{\{(?!\/)/,
+        end: /\}\}\}\}/,
+        contains: [OPENING_BLOCK_MUSTACHE_CONTENTS],
+        starts: {
+          end: /\{\{\{\{\//,
+          returnEnd: true,
+          subLanguage: 'xml'
+        }
+      },
+      {
+        // close raw block
+        className: 'template-tag',
+        begin: /\{\{\{\{\//,
+        end: /\}\}\}\}/,
+        contains: [CLOSING_BLOCK_MUSTACHE_CONTENTS]
+      },
+      {
+        // open block statement
+        className: 'template-tag',
+        begin: /\{\{#/,
+        end: /\}\}/,
+        contains: [OPENING_BLOCK_MUSTACHE_CONTENTS]
+      },
+      {
+        className: 'template-tag',
+        begin: /\{\{(?=else\}\})/,
+        end: /\}\}/,
+        keywords: 'else'
+      },
+      {
+        className: 'template-tag',
+        begin: /\{\{(?=else if)/,
+        end: /\}\}/,
+        keywords: 'else if'
+      },
+      {
+        // closing block statement
+        className: 'template-tag',
+        begin: /\{\{\//,
+        end: /\}\}/,
+        contains: [CLOSING_BLOCK_MUSTACHE_CONTENTS]
+      },
+      {
+        // template variable or helper-call that is NOT html-escaped
+        className: 'template-variable',
+        begin: /\{\{\{/,
+        end: /\}\}\}/,
+        contains: [BASIC_MUSTACHE_CONTENTS]
+      },
+      {
+        // template variable or helper-call that is html-escaped
+        className: 'template-variable',
+        begin: /\{\{/,
+        end: /\}\}/,
+        contains: [BASIC_MUSTACHE_CONTENTS]
+      }
+    ]
+  };
+}
+
+module.exports = handlebars;