1 files changed, 102 insertions, 0 deletions
diff --git a/lib/epub.js/src/utils/path.js b/lib/epub.js/src/utils/path.js
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+++ b/lib/epub.js/src/utils/path.js
@@ -0,0 +1,102 @@
+import path from "path-webpack";
+
+/**
+ * Creates a Path object for parsing and manipulation of a path strings
+ *
+ * Uses a polyfill for Nodejs path: https://nodejs.org/api/path.html
+ * @param	{string} pathString	a url string (relative or absolute)
+ * @class
+ */
+class Path {
+	constructor(pathString) {
+		var protocol;
+		var parsed;
+
+		protocol = pathString.indexOf("://");
+		if (protocol > -1) {
+			pathString = new URL(pathString).pathname;
+		}
+
+		parsed = this.parse(pathString);
+
+		this.path = pathString;
+
+		if (this.isDirectory(pathString)) {
+			this.directory = pathString;
+		} else {
+			this.directory = parsed.dir + "/";
+		}
+
+		this.filename = parsed.base;
+		this.extension = parsed.ext.slice(1);
+
+	}
+
+	/**
+	 * Parse the path: https://nodejs.org/api/path.html#path_path_parse_path
+	 * @param	{string} what
+	 * @returns {object}
+	 */
+	parse (what) {
+		return path.parse(what);
+	}
+
+	/**
+	 * @param	{string} what
+	 * @returns {boolean}
+	 */
+	isAbsolute (what) {
+		return path.isAbsolute(what || this.path);
+	}
+
+	/**
+	 * Check if path ends with a directory
+	 * @param	{string} what
+	 * @returns {boolean}
+	 */
+	isDirectory (what) {
+		return (what.charAt(what.length-1) === "/");
+	}
+
+	/**
+	 * Resolve a path against the directory of the Path
+	 *
+	 * https://nodejs.org/api/path.html#path_path_resolve_paths
+	 * @param	{string} what
+	 * @returns {string} resolved
+	 */
+	resolve (what) {
+		return path.resolve(this.directory, what);
+	}
+
+	/**
+	 * Resolve a path relative to the directory of the Path
+	 *
+	 * https://nodejs.org/api/path.html#path_path_relative_from_to
+	 * @param	{string} what
+	 * @returns {string} relative
+	 */
+	relative (what) {
+		var isAbsolute = what && (what.indexOf("://") > -1);
+
+		if (isAbsolute) {
+			return what;
+		}
+
+		return path.relative(this.directory, what);
+	}
+
+	splitPath(filename) {
+		return this.splitPathRe.exec(filename).slice(1);
+	}
+
+	/**
+	 * Return the path string
+	 * @returns {string} path
+	 */
+	toString () {
+		return this.path;
+	}
+}
+
+export default Path;