Prism.languages.csharp = Prism.languages.extend('clike', {
	'keyword': /\b(?:abstract|add|alias|as|ascending|async|await|base|bool|break|byte|case|catch|char|checked|class|const|continue|decimal|default|delegate|descending|do|double|dynamic|else|enum|event|explicit|extern|false|finally|fixed|float|for|foreach|from|get|global|goto|group|if|implicit|in|int|interface|internal|into|is|join|let|lock|long|namespace|new|null|object|operator|orderby|out|override|params|partial|private|protected|public|readonly|ref|remove|return|sbyte|sealed|select|set|short|sizeof|stackalloc|static|string|struct|switch|this|throw|true|try|typeof|uint|ulong|unchecked|unsafe|ushort|using|value|var|virtual|void|volatile|where|while|yield)\b/,
	'string': [
		{
			pattern: /@("|')(?:\1\1|\\[\s\S]|(?!\1)[^\\])*\1/,
			greedy: true
		},
		{
			pattern: /("|')(?:\\.|(?!\1)[^\\\r\n])*?\1/,
			greedy: true
		}
	],
	'class-name': [
		{
			// (Foo bar, Bar baz)
			pattern: /\b[A-Z]\w*(?:\.\w+)*\b(?=\s+\w+)/,
			inside: {
				punctuation: /\./
			}
		},
		{
			// [Foo]
			pattern: /(\[)[A-Z]\w*(?:\.\w+)*\b/,
			lookbehind: true,
			inside: {
				punctuation: /\./
			}
		},
		{
			// class Foo : Bar
			pattern: /(\b(?:class|interface)\s+[A-Z]\w*(?:\.\w+)*\s*:\s*)[A-Z]\w*(?:\.\w+)*\b/,
			lookbehind: true,
			inside: {
				punctuation: /\./
			}
		},
		{
			// class Foo
			pattern: /((?:\b(?:class|interface|new)\s+)|(?:catch\s+\())[A-Z]\w*(?:\.\w+)*\b/,
			lookbehind: true,
			inside: {
				punctuation: /\./
			}
		}
	],
	'number': /\b0x[\da-f]+\b|(?:\b\d+\.?\d*|\B\.\d+)f?/i,
	'operator': />>=?|<<=?|[-=]>|([-+&|?])\1|~|[-+*/%&|^!=<>]=?/,
	'punctuation': /\?\.?|::|[{}[\];(),.:]/
});

Prism.languages.insertBefore('csharp', 'class-name', {
	'generic-method': {
		pattern: /\w+\s*<[^>\r\n]+?>\s*(?=\()/,
		inside: {
			function: /^\w+/,
			'class-name': {
				pattern: /\b[A-Z]\w*(?:\.\w+)*\b/,
				inside: {
					punctuation: /\./
				}
			},
			keyword: Prism.languages.csharp.keyword,
			punctuation: /[<>(),.:]/
		}
	},
	'preprocessor': {
		pattern: /(^\s*)#.*/m,
		lookbehind: true,
		alias: 'property',
		inside: {
			// highlight preprocessor directives as keywords
			'directive': {
				pattern: /(\s*#)\b(?:define|elif|else|endif|endregion|error|if|line|pragma|region|undef|warning)\b/,
				lookbehind: true,
				alias: 'keyword'
			}
		}
	}
});

Prism.languages.dotnet = Prism.languages.csharp;
