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app_vue/node_modules/enhanced-resolve/lib/util/identifier.js

@@ -0,0 +1,69 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Ivan Kopeykin @vankop
+*/
+
+"use strict";
+
+const PATH_QUERY_FRAGMENT_REGEXP =
+	/^(#?(?:\0.|[^?#\0])*)(\?(?:\0.|[^#\0])*)?(#.*)?$/;
+const ZERO_ESCAPE_REGEXP = /\0(.)/g;
+
+/**
+ * @param {string} identifier identifier
+ * @returns {[string, string, string]|null} parsed identifier
+ */
+function parseIdentifier(identifier) {
+	if (!identifier) {
+		return null;
+	}
+
+	const firstEscape = identifier.indexOf("\0");
+	if (firstEscape < 0) {
+		// Fast path for inputs that don't use \0 escaping.
+		const queryStart = identifier.indexOf("?");
+		// Start at index 1 to ignore a possible leading hash.
+		const fragmentStart = identifier.indexOf("#", 1);
+
+		if (fragmentStart < 0) {
+			if (queryStart < 0) {
+				// No fragment, no query
+				return [identifier, "", ""];
+			}
+			// Query, no fragment
+			return [
+				identifier.slice(0, queryStart),
+				identifier.slice(queryStart),
+				""
+			];
+		}
+
+		if (queryStart < 0 || fragmentStart < queryStart) {
+			// Fragment, no query
+			return [
+				identifier.slice(0, fragmentStart),
+				"",
+				identifier.slice(fragmentStart)
+			];
+		}
+
+		// Query and fragment
+		return [
+			identifier.slice(0, queryStart),
+			identifier.slice(queryStart, fragmentStart),
+			identifier.slice(fragmentStart)
+		];
+	}
+
+	const match = PATH_QUERY_FRAGMENT_REGEXP.exec(identifier);
+
+	if (!match) return null;
+
+	return [
+		match[1].replace(ZERO_ESCAPE_REGEXP, "$1"),
+		match[2] ? match[2].replace(ZERO_ESCAPE_REGEXP, "$1") : "",
+		match[3] || ""
+	];
+}
+
+module.exports.parseIdentifier = parseIdentifier;