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The JWebSwing implementation for Source Code Prettify

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// Copyright (C) 2013 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.


/**
 * @fileoverview
 * Registers a language handler Dart.
 * Loosely structured based on the DartLexer in Pygments: http://pygments.org/.
 *
 * To use, include prettify.js and this file in your HTML page.
 * Then put your code in an HTML tag like
 *      (Dart code)
 *
 * @author [email protected]
 */

PR['registerLangHandler'](
    PR['createSimpleLexer'](
        [
            // Whitespace.
            [PR['PR_PLAIN'], /^[\t\n\r \xA0]+/, null, '\t\n\r \xA0']
        ],
        [
            // Script tag.
            [PR['PR_COMMENT'], /^#!(?:.*)/],

            // `import`, `library`, `part of`, `part`, `as`, `show`, and `hide`
            // keywords.
            [PR['PR_KEYWORD'], /^\b(?:import|library|part of|part|as|show|hide)\b/i],

            // Single-line comments.
            [PR['PR_COMMENT'], /^\/\/(?:.*)/],

            // Multiline comments.
            [PR['PR_COMMENT'], /^\/\*[^*]*\*+(?:[^\/*][^*]*\*+)*\//], // */

            // `class` and `interface` keywords.
            [PR['PR_KEYWORD'], /^\b(?:class|interface)\b/i],

            // General keywords.
            [PR['PR_KEYWORD'], /^\b(?:assert|break|case|catch|continue|default|do|else|finally|for|if|in|is|new|return|super|switch|this|throw|try|while)\b/i],

            // Declaration keywords.
            [PR['PR_KEYWORD'], /^\b(?:abstract|const|extends|factory|final|get|implements|native|operator|set|static|typedef|var)\b/i],

            // Keywords for types.
            [PR['PR_TYPE'], /^\b(?:bool|double|Dynamic|int|num|Object|String|void)\b/i],

            // Keywords for constants.
            [PR['PR_KEYWORD'], /^\b(?:false|null|true)\b/i],

            // Multiline strings, single- and double-quoted.
            [PR['PR_STRING'], /^r?[\']{3}[\s|\S]*?[^\\][\']{3}/],
            [PR['PR_STRING'], /^r?[\"]{3}[\s|\S]*?[^\\][\"]{3}/],

            // Normal and raw strings, single- and double-quoted.
            [PR['PR_STRING'], /^r?\'(\'|(?:[^\n\r\f])*?[^\\]\')/],
            [PR['PR_STRING'], /^r?\"(\"|(?:[^\n\r\f])*?[^\\]\")/],

            // Identifiers.
            [PR['PR_PLAIN'], /^[a-z_$][a-z0-9_]*/i],

            // Operators.
            [PR['PR_PUNCTUATION'], /^[~!%^&*+=|?:<>/-]/],

            // Hex numbers.
            [PR['PR_LITERAL'], /^\b0x[0-9a-f]+/i],

            // Decimal numbers.
            [PR['PR_LITERAL'], /^\b\d+(?:\.\d*)?(?:e[+-]?\d+)?/i],
            [PR['PR_LITERAL'], /^\b\.\d+(?:e[+-]?\d+)?/i],

            // Punctuation.
            [PR['PR_PUNCTUATION'], /^[(){}\[\],.;]/]
        ]),
    ['dart']);