Scribunto: Use Luaj for pattern-matching (instead of Java Regex) [#413]

baselib/src/gplx/objects/errs/Err_.java

@@ -0,0 +1,46 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2017 gnosygnu@gmail.com
+
+XOWA is licensed under the terms of the General Public License (GPL) Version 3,
+or alternatively under the terms of the Apache License Version 2.0.
+
+You may use XOWA according to either of these licenses as is most appropriate
+for your project on a case-by-case basis.
+
+The terms of each license can be found in the source code repository:
+
+GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
+Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
+*/
+package gplx.objects.errs; import gplx.*; import gplx.objects.*;
+import gplx.objects.strings.*;
+public class Err_ {
+	public static void Noop(Exception e) {}
+	public static Err New_fmt(String fmt, Object... args) {return new Err(String_.Format(fmt, args));}
+	public static Err New_msg(String msg) {return new Err(msg);}
+	public static Err New_fmt(Exception e, String fmt, Object... args) {
+		return new Err(String_.Format(fmt, args) + " exc=" + Err_.Message_lang(e));
+	}
+
+	public static Err New_null(String name) {return new Err("Object was null; name=" + name);}
+	public static Err New_unhandled_default(Object o) {
+		return new Err("val is not in switch; val=" + Object_.To_str(o));
+	}
+
+		public static String Message_lang(Exception e) {
+		return Error.class.isAssignableFrom(e.getClass())
+				? e.toString()    // java.lang.Error returns null for "getMessage()"; return "toString()" instead
+				: e.getMessage();
+	}
+	
+		public static String Trace_lang(Throwable e) {
+		StackTraceElement[] ary = e.getStackTrace();
+		String rv = "";
+		for (int i = 0; i < ary.length; i++) {
+			if (i != 0) rv += "\n";
+			rv += ary[i].toString();
+		}
+		return rv;
+	}
+	}