source: node_modules/prismjs/components/prism-dart.js@ 65b6638

(function (Prism) {
        var keywords = [
                /\b(?:async|sync|yield)\*/,
                /\b(?:abstract|assert|async|await|break|case|catch|class|const|continue|covariant|default|deferred|do|dynamic|else|enum|export|extends|extension|external|factory|final|finally|for|get|hide|if|implements|import|in|interface|library|mixin|new|null|on|operator|part|rethrow|return|set|show|static|super|switch|sync|this|throw|try|typedef|var|void|while|with|yield)\b/
        ];

        // Handles named imports, such as http.Client
        var packagePrefix = /(^|[^\w.])(?:[a-z]\w*\s*\.\s*)*(?:[A-Z]\w*\s*\.\s*)*/.source;

        // based on the dart naming conventions
        var className = {
                pattern: RegExp(packagePrefix + /[A-Z](?:[\d_A-Z]*[a-z]\w*)?\b/.source),
                lookbehind: true,
                inside: {
                        'namespace': {
                                pattern: /^[a-z]\w*(?:\s*\.\s*[a-z]\w*)*(?:\s*\.)?/,
                                inside: {
                                        'punctuation': /\./
                                }
                        },
                }
        };

        Prism.languages.dart = Prism.languages.extend('clike', {
                'class-name': [
                        className,
                        {
                                // variables and parameters
                                // this to support class names (or generic parameters) which do not contain a lower case letter (also works for methods)
                                pattern: RegExp(packagePrefix + /[A-Z]\w*(?=\s+\w+\s*[;,=()])/.source),
                                lookbehind: true,
                                inside: className.inside
                        }
                ],
                'keyword': keywords,
                'operator': /\bis!|\b(?:as|is)\b|\+\+|--|&&|\|\||<<=?|>>=?|~(?:\/=?)?|[+\-*\/%&^|=!<>]=?|\?/
        });

        Prism.languages.insertBefore('dart', 'string', {
                'string-literal': {
                        pattern: /r?(?:("""|''')[\s\S]*?\1|(["'])(?:\\.|(?!\2)[^\\\r\n])*\2(?!\2))/,
                        greedy: true,
                        inside: {
                                'interpolation': {
                                        pattern: /((?:^|[^\\])(?:\\{2})*)\$(?:\w+|\{(?:[^{}]|\{[^{}]*\})*\})/,
                                        lookbehind: true,
                                        inside: {
                                                'punctuation': /^\$\{?|\}$/,
                                                'expression': {
                                                        pattern: /[\s\S]+/,
                                                        inside: Prism.languages.dart
                                                }
                                        }
                                },
                                'string': /[\s\S]+/
                        }
                },
                'string': undefined
        });

        Prism.languages.insertBefore('dart', 'class-name', {
                'metadata': {
                        pattern: /@\w+/,
                        alias: 'function'
                }
        });

        Prism.languages.insertBefore('dart', 'class-name', {
                'generics': {
                        pattern: /<(?:[\w\s,.&?]|<(?:[\w\s,.&?]|<(?:[\w\s,.&?]|<[\w\s,.&?]*>)*>)*>)*>/,
                        inside: {
                                'class-name': className,
                                'keyword': keywords,
                                'punctuation': /[<>(),.:]/,
                                'operator': /[?&|]/
                        }
                },
        });
}(Prism));