TypeScript glob.match函數代碼示例

function guessMimeTypeByPath(path: string, filename: string, associations: ITextMimeAssociationItem[]): string {
	let filenameMatch: ITextMimeAssociationItem;
	let patternMatch: ITextMimeAssociationItem;
	let extensionMatch: ITextMimeAssociationItem;

	// We want to prioritize associations based on the order they are registered so that the last registered
	// association wins over all other. This is for https://github.com/Microsoft/vscode/issues/20074
	for (let i = associations.length - 1; i >= 0; i--) {
		const association = associations[i];

		// First exact name match
		if (filename === association.filenameLowercase) {
			filenameMatch = association;
			break; // take it!
		}

		// Longest pattern match
		if (association.filepattern) {
			if (!patternMatch || association.filepattern.length > patternMatch.filepattern.length) {
				const target = association.filepatternOnPath ? path : filename; // match on full path if pattern contains path separator
				if (match(association.filepatternLowercase, target)) {
					patternMatch = association;
				}
			}
		}

		// Longest extension match
		if (association.extension) {
			if (!extensionMatch || association.extension.length > extensionMatch.extension.length) {
				if (strings.endsWith(filename, association.extensionLowercase)) {
					extensionMatch = association;
				}
			}
		}
	}

	// 1.) Exact name match has second highest prio
	if (filenameMatch) {
		return filenameMatch.mime;
	}

	// 2.) Match on pattern
	if (patternMatch) {
		return patternMatch.mime;
	}

	// 3.) Match on extension comes next
	if (extensionMatch) {
		return extensionMatch.mime;
	}

	return null;
}

export function score(selector: LanguageSelector, candidateUri: URI, candidateLanguage: string): number {

	if (Array.isArray(selector)) {
		// array -> take max individual value
		let ret = 0;
		for (const filter of selector) {
			const value = score(filter, candidateUri, candidateLanguage);
			if (value === 10) {
				return value; // already at the highest
			}
			if (value > ret) {
				ret = value;
			}
		}
		return ret;

	} else if (typeof selector === 'string') {
		// short-hand notion, desugars to
		// 'fooLang' -> [{ language: 'fooLang', scheme: 'file' }, { language: 'fooLang', scheme: 'untitled' }]
		// '*' -> { language: '*', scheme: '*' }
		if (selector === '*') {
			return 5;
		} else if (selector === candidateLanguage) {
			return 10;
		} else {
			return 0;
		}

	} else if (selector) {
		// filter -> select accordingly, use defaults for scheme
		const { language, pattern, scheme } = selector;

		let ret = 0;

		if (scheme) {
			if (scheme === candidateUri.scheme) {
				ret = 10;
			} else if (scheme === '*') {
				ret = 5;
			} else {
				return 0;
			}
		}

		if (language) {
			if (language === candidateLanguage) {
				ret = 10;
			} else if (language === '*') {
				ret = Math.max(ret, 5);
			} else {
				return 0;
			}
		}

		if (pattern) {
			if (pattern === candidateUri.fsPath || matchGlobPattern(pattern, candidateUri.fsPath)) {
				ret = 10;
			} else {
				return 0;
			}
		}

		return ret;

	} else {
		return 0;
	}
}

export function score(selector: LanguageSelector | undefined, candidateUri: URI, candidateLanguage: string, candidateIsSynchronized: boolean): number {

	if (Array.isArray(selector)) {
		// array -> take max individual value
		let ret = 0;
		for (const filter of selector) {
			const value = score(filter, candidateUri, candidateLanguage, candidateIsSynchronized);
			if (value === 10) {
				return value; // already at the highest
			}
			if (value > ret) {
				ret = value;
			}
		}
		return ret;

	} else if (typeof selector === 'string') {

		if (!candidateIsSynchronized) {
			return 0;
		}

		// short-hand notion, desugars to
		// 'fooLang' -> { language: 'fooLang'}
		// '*' -> { language: '*' }
		if (selector === '*') {
			return 5;
		} else if (selector === candidateLanguage) {
			return 10;
		} else {
			return 0;
		}

	} else if (selector) {
		// filter -> select accordingly, use defaults for scheme
		const { language, pattern, scheme, hasAccessToAllModels } = selector;

		if (!candidateIsSynchronized && !hasAccessToAllModels) {
			return 0;
		}

		let ret = 0;

		if (scheme) {
			if (scheme === candidateUri.scheme) {
				ret = 10;
			} else if (scheme === '*') {
				ret = 5;
			} else {
				return 0;
			}
		}

		if (language) {
			if (language === candidateLanguage) {
				ret = 10;
			} else if (language === '*') {
				ret = Math.max(ret, 5);
			} else {
				return 0;
			}
		}

		if (pattern) {
			if (pattern === candidateUri.fsPath || matchGlobPattern(pattern, candidateUri.fsPath)) {
				ret = 10;
			} else {
				return 0;
			}
		}

		return ret;

	} else {
		return 0;
	}
}