First commit

framework/unify/simplePath.js

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+/*
+
+	Copyright (c) 2020, 2023, The Unified Company.
+
+	This code is part of Unify.
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the ESA Software Community License - Strong Copyleft LICENSE,
+	as published by the ESA.
+	See the ESA Software Community License - Strong Copyleft LICENSE, for more details.
+
+	https://unifyjs.org 
+
+*/
+
+export default class simplePath{
+	
+	useSlash		= true;
+
+	parts			= new Array();
+
+	env				= false;
+
+	beginWithSlash	= true;
+
+	endWithSlash	= true;
+
+	absolute		= false;
+
+
+
+	constructor( part ) {
+
+		if( part ) {
+
+			this.preparePart( part );
+
+			this.parts.push( part );
+
+		}
+
+	}
+
+	preparePart( part ) {
+
+		if( this.parts.length == 0 ) {
+
+			if( part.slice( 0,2 ) == ".." ) {
+
+				this.beginWithSlash	= false;
+
+			}
+
+		}
+
+	}
+
+	clone() {
+
+		var clone	= new simplePath();
+
+		clone.useSlash			= this.useSlash;
+
+		clone.parts				= [...this.parts];
+
+		clone.env				= this.env;
+
+		clone.beginWithSlash	= this.beginWithSlash;
+
+		clone.endWithSlash		= this.endWithSlash;
+
+		clone.absolute			= this.absolute;
+
+
+		return clone;
+
+	}
+
+	getEnvironmentNative() {
+
+		if( typeof document != "undefined" ) {
+
+			return "Browser";
+
+		}
+
+		if( global ) {
+
+			return "Node"
+
+		}
+
+	}
+
+	getEnvironment() {
+
+		if( this.getEnvironmentNative() == "Browser" ) {
+
+			var env	= "Browser";
+
+		} else {
+
+			var env	= process.platform;
+
+		}
+
+		return env;
+
+	}
+
+	getSeparator() {
+
+		var env	= this.getEnvironment();
+		
+		if( env == "win32" || this.env == "win32" ) {
+
+			return '\\';
+
+		} else {
+
+			return "/";
+
+		}
+
+	}
+
+	slash( path ) {
+
+		const isExtendedLengthPath = path.startsWith('\\\\?\\');
+
+		if ( isExtendedLengthPath ) {
+
+			return path;
+
+		}
+
+		if( this.getSeparator() == "\\" ) {
+
+			return path.replace(/\//g, this.getSeparator());
+
+
+		} else {
+
+			return path.replace(/\\/g, this.getSeparator());
+
+		}
+
+	}
+
+	formatPath( part ) {
+
+		for (var i = 0; i < 4; i++) {
+
+			part = part.replace("//", "/")
+
+		}
+
+		for (var i = 0; i < 4; i++) {
+
+			part = part.replace("\\\\", "\\")
+
+		}
+
+		if( part.endsWith("/") || part.endsWith("\\") ) {
+
+			part = part.slice(0, -1)
+
+		}
+
+		if( part.startsWith("/") || part.startsWith("\\") ) {
+
+			part = part.substring(1);
+
+		}
+
+		return part;
+
+	}
+
+	add( part ) {
+
+		if( !part ) {
+
+			return false;
+
+		}
+
+		this.preparePart( part );
+
+		var formattedPath = this.formatPath( part );
+
+		this.parts.push( formattedPath );
+
+	}
+
+	removeFirstSlash( part ) {
+
+		if( part.startsWith("/") || part.startsWith("\\") ) {
+
+			part = part.substring(1);
+
+		}
+
+		return part;
+
+	}
+
+	assureFirstSlash( part ) {
+
+		if( !part.startsWith("/") || !part.startsWith("\\") ) {
+
+			part = "/" + part;
+
+		}
+
+		return part;
+
+	}
+
+	removeLastSlash( part ) {
+
+		if( part.endsWith("/") || part.endsWith("\\") ) {
+
+			part = part.slice(0, -1)
+
+		}
+
+		return part;
+
+	}
+
+	assureLastSlash( part ) {
+
+		if( !part.endsWith("/") || !part.endsWith("\\") ) {
+
+			part = part + "/";
+
+		}
+
+		return part;
+
+	}
+
+	lastItemHasExtension() {
+
+		var length		= this.parts.length;
+
+		var lastItem	= this.parts[ length - 1 ];
+
+		if( lastItem.includes(".") ) {
+
+			return true;
+
+		} else {
+
+			return false;
+
+		}
+
+	}
+
+	resolve() {
+
+		var parts	= this.parts;
+
+		var joined	= parts.join( this.getSeparator() );
+
+		if( this.useSlash ) {
+
+			joined	= this.slash( joined );
+
+		}
+
+		if( !this.beginWithSlash ) {
+
+			joined = this.removeFirstSlash( joined );
+
+		} else {
+
+			joined = this.assureFirstSlash( joined );
+
+
+		}
+
+		if( !this.endWithSlash || this.lastItemHasExtension() ) {
+
+			joined = this.removeLastSlash( joined );
+
+		} else {
+
+			joined = this.assureLastSlash( joined );
+
+		}
+
+		if( this.absolute && global ) {
+
+			return global.path.resolve( joined );
+
+		}
+
+		return joined;
+
+	}
+	
+}