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  • unescape ( ';' STRING )*
    Macro

    The concatenated input will have all \n, \r, \b, \f, and \t replaced with their control code.

    public String _unescape(String args[]) {
    	StringBuilder sb = new StringBuilder();
    	for (int i = 1; i < args.length; i++) {
    		sb.append(args[i]);
    	}
    
    	for (int j = 0; j < sb.length() - 1; j++) {
    		if (sb.charAt(j) == '\\') {
    			switch (sb.charAt(j + 1)) {
    
    				case 'n' :
    					sb.replace(j, j + 2, "\n");
    					break;
    
    				case 'r' :
    					sb.replace(j, j + 2, "\r");
    					break;
    
    				case 'b' :
    					sb.replace(j, j + 2, "\b");
    					break;
    
    				case 'f' :
    					sb.replace(j, j + 2, "\f");
    					break;
    
    				case 't' :
    					sb.replace(j, j + 2, "\t");
    					break;
    
    				default :
    					break;
    			}
    		}
    	}
    	return sb.toString();
    }
    
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