Gui: Fix NullPointerException when pressing backspace on empty search box [#841]

Bump commons-compress from 1.18 to 1.19 in /res/dev/make/maven

.gitignore

@@ -0,0 +1,2 @@
+*.iml
+**/.idea/**

100_core/src/gplx/Bry_.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -14,14 +14,15 @@ 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;
-import java.lang.*;
-import gplx.core.brys.*; import gplx.core.primitives.*; import gplx.core.ios.*;
-import gplx.langs.htmls.entitys.*;
+
+import gplx.core.primitives.Int_obj_ref;
+import gplx.langs.htmls.entitys.Gfh_entity_;
+
 public class Bry_ {
 	public static final String Cls_val_name = "byte[]";
-	public static final    byte[] Empty = new byte[0];
-	public static final    byte[][] Ary_empty = new byte[0][];
-	public static final    Class<?> Cls_ref_type = byte[].class;
+	public static final byte[] Empty = new byte[0];
+	public static final byte[][] Ary_empty = new byte[0][];
+	public static final Class<?> Cls_ref_type = byte[].class;
 	public static byte[] cast(Object val) {return (byte[])val;}
 	public static byte[] New_by_byte(byte b) {return new byte[] {b};}
 	public static byte[] New_by_ints(int... ary) {
@@ -438,9 +439,9 @@ public class Bry_ {
 		return rv;
 	}
 	public static final    byte[] Trim_ary_ws = mask_(256, Byte_ascii.Tab, Byte_ascii.Nl, Byte_ascii.Cr, Byte_ascii.Space);
-	public static byte[] Trim(byte[] src) {return Trim(src, 0, src.length, true, true, Trim_ary_ws);}
-	public static byte[] Trim(byte[] src, int bgn, int end) {return Trim(src, bgn, end, true, true, Trim_ary_ws);}
-	public static byte[] Trim(byte[] src, int bgn, int end, boolean trim_bgn, boolean trim_end, byte[] trim_ary) {
+	public static byte[] Trim(byte[] src) {return Trim(src, 0, src.length, true, true, Trim_ary_ws, true);}
+	public static byte[] Trim(byte[] src, int bgn, int end) {return Trim(src, bgn, end, true, true, Trim_ary_ws, true);}
+	public static byte[] Trim(byte[] src, int bgn, int end, boolean trim_bgn, boolean trim_end, byte[] trim_ary, boolean reuse_bry_if_noop) {
 		int txt_bgn = bgn, txt_end = end;
 		boolean all_ws = true;
 		if (trim_bgn) {
@@ -466,7 +467,8 @@ public class Bry_ {
 			if (all_ws) return Bry_.Empty;
 		}
 
-		if (	bgn == 0       && end == src.length	 // Trim is called on entire bry, not subset
+		if (	reuse_bry_if_noop
+			&&  bgn == 0       && end == src.length	 // Trim is called on entire bry, not subset
 			&&	bgn == txt_bgn && end == txt_end     // Trim hasn't trimmed anything
 			) {	
 			return src;
@@ -474,6 +476,19 @@ public class Bry_ {
 		else
 			return Bry_.Mid(src, txt_bgn, txt_end);
 	}
+	public static byte[] Trim_bgn(byte[] v, byte trim, int bgn) {
+		boolean trimmed = false;
+		int len = v.length;
+		int pos = bgn;
+		for (; pos < len; pos++) {
+			if (v[pos] == trim) {
+				trimmed = true;
+			}
+			else
+				break;
+		}
+		return trimmed ? Bry_.Mid(v, pos, len) : v;
+	}
 	public static byte[] Trim_end(byte[] v, byte trim, int end) {
 		boolean trimmed = false;
 		int pos = end - 1; // NOTE: -1 b/c callers will always be passing pos + 1; EX: src, src_len
@@ -978,6 +993,43 @@ public class Bry_ {
 		}
 		return bfr.To_bry_and_clear();
 	}
+	public static byte[] Replace_many(byte[] src, byte[] find, byte[] repl) {
+		Bry_bfr bfr = null;
+		int src_len = src.length;
+		int find_len = find.length;
+
+		int pos = 0;
+		while (true) {
+			// find find_bgn
+			int find_bgn = Bry_find_.Find_fwd(src, find, pos, src_len);
+
+			// exit if nothing found
+			if (find_bgn == Bry_find_.Not_found) 
+				break;
+
+			// lazy-instantiation
+			if (bfr == null)
+				bfr = Bry_bfr_.New();
+
+			// add everything up to find_bgn
+			bfr.Add_mid(src, pos, find_bgn);
+
+			// add repl
+			bfr.Add(repl);
+
+			// move pos forward
+			pos = find_bgn + find_len;
+		}
+
+		// nothing found; return src
+		if (bfr == null)
+			return src;
+		else {
+			// add rest
+			bfr.Add_mid(src, pos, src_len);
+			return bfr.To_bry_and_clear();
+		}
+	}
 	public static int Trim_end_pos(byte[] src, int end) {
 		for (int i = end - 1; i > -1; i--) {
 			switch (src[i]) {

100_core/src/gplx/Bry__tst.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -14,51 +14,55 @@ 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;
-import org.junit.*; import gplx.core.primitives.*; import gplx.core.brys.*; import gplx.core.tests.*;
+
+import gplx.core.primitives.Int_obj_ref;
+import gplx.core.tests.Gftest;
+import org.junit.Test;
+
 public class Bry__tst {
-	private final    Bry__fxt fxt = new Bry__fxt();
-	@Test  public void new_ascii_() {
+	private final Bry__fxt fxt = new Bry__fxt();
+	@Test public void new_ascii_() {
 		fxt.Test_new_a7("a"		, Bry_.New_by_ints(97));				// one
 		fxt.Test_new_a7("abc"	, Bry_.New_by_ints(97, 98, 99));		// many
 		fxt.Test_new_a7(""		, Bry_.Empty);						// none
 		fxt.Test_new_a7("¢€𤭢"	, Bry_.New_by_ints(63, 63, 63, 63));	// non-ascii -> ?
 	}
-	@Test  public void new_u8() {
+	@Test public void new_u8() {
 		fxt.Test_new_u8("a"		, Bry_.New_by_ints(97));						// one
 		fxt.Test_new_u8("abc"	, Bry_.New_by_ints(97, 98, 99));				// many
 		fxt.Test_new_u8("¢"		, Bry_.New_by_ints(194, 162));					// bry_len=2; cent
 		fxt.Test_new_u8("€"		, Bry_.New_by_ints(226, 130, 172));				// bry_len=3; euro
 		fxt.Test_new_u8("𤭢"	, Bry_.New_by_ints(240, 164, 173, 162));		// bry_len=4; example from en.w:UTF-8
 	}
-	@Test   public void Add__bry_plus_byte() {
+	@Test public void Add__bry_plus_byte() {
 		fxt.Test_add("a"		, Byte_ascii.Pipe		, "a|");			// basic
 		fxt.Test_add(""			, Byte_ascii.Pipe		, "|");				// empty String
 	}
-	@Test   public void Add__byte_plus_bry() {
+	@Test public void Add__byte_plus_bry() {
 		fxt.Test_add(Byte_ascii.Pipe	, "a"			, "|a");			// basic
 		fxt.Test_add(Byte_ascii.Pipe	, ""			, "|");				// empty String
 	}
-	@Test   public void Add_w_dlm() {
+	@Test public void Add_w_dlm() {
 		fxt.Test_add_w_dlm(Byte_ascii.Pipe, String_.Ary("a", "b", "c")	, "a|b|c");					// basic
 		fxt.Test_add_w_dlm(Byte_ascii.Pipe, String_.Ary("a")				, "a");					// one item
 		fxt.Test_add_w_dlm(Byte_ascii.Pipe, String_.Ary("a", null, "c")	, "a||c");					// null
 	}
-	@Test   public void Add_w_dlm_bry() {
+	@Test public void Add_w_dlm_bry() {
 		fxt.Test_add_w_dlm("<>", String_.Ary("a","b","c"), "a<>b<>c");
 	}
-	@Test  public void MidByPos() {
+	@Test public void MidByPos() {
 		tst_MidByPos("abcba", 0, 1, "a");
 		tst_MidByPos("abcba", 0, 2, "ab");
 		tst_MidByPos("abcba", 1, 4, "bcb");
 	}	void tst_MidByPos(String src, int bgn, int end, String expd) {Tfds.Eq(expd, String_.new_u8(Bry_.Mid(Bry_.new_u8(src), bgn, end)));}
-	@Test  public void Replace_one() {
+	@Test public void Replace_one() {
 		tst_ReplaceOne("a"		, "b"	, "c"	, "a");
 		tst_ReplaceOne("b"		, "b"	, "c"	, "c");
 		tst_ReplaceOne("bb"		, "b"	, "c"	, "cb");
 		tst_ReplaceOne("abcd"	, "bc"	, ""	, "ad");
 		tst_ReplaceOne("abcd"	, "b"	, "ee"	, "aeecd");
 	}	void tst_ReplaceOne(String src, String find, String repl, String expd) {Tfds.Eq(expd, String_.new_u8(Bry_.Replace_one(Bry_.new_u8(src), Bry_.new_u8(find), Bry_.new_u8(repl))));}
-	@Test  public void XtoStrBytesByInt() {
+	@Test public void XtoStrBytesByInt() {
 		tst_XtoStrBytesByInt(0, 0);
 		tst_XtoStrBytesByInt(9, 9);
 		tst_XtoStrBytesByInt(10, 1, 0);
@@ -74,7 +78,7 @@ public class Bry__tst {
 		}
 		Tfds.Eq_ary(expd, Bry_.To_a7_bry(val, Int_.DigitCount(val)));
 	}
-	@Test  public void Has_at_end() {
+	@Test public void Has_at_end() {
 		tst_HasAtEnd("a|bcd|e", "d"	, 2, 5, true);		// y_basic
 		tst_HasAtEnd("a|bcd|e", "bcd"	, 2, 5, true);		// y_many
 		tst_HasAtEnd("a|bcd|e", "|bcd"	, 2, 5, false);		// n_long
@@ -85,13 +89,13 @@ public class Bry__tst {
 	}
 	void tst_HasAtEnd(String src, String find, int bgn, int end, boolean expd) {Tfds.Eq(expd, Bry_.Has_at_end(Bry_.new_u8(src), Bry_.new_u8(find), bgn, end));}
 	void tst_HasAtEnd(String src, String find, boolean expd) {Tfds.Eq(expd, Bry_.Has_at_end(Bry_.new_u8(src), Bry_.new_u8(find)));}
-	@Test  public void Has_at_bgn() {
+	@Test public void Has_at_bgn() {
 		tst_HasAtBgn("y_basic"	, "a|bcd|e", "b"	, 2, 5, true);
 		tst_HasAtBgn("y_many"	, "a|bcd|e", "bcd"	, 2, 5, true);
 		tst_HasAtBgn("n_long"	, "a|bcd|e", "bcde"	, 2, 5, false);
 		tst_HasAtBgn("n_pos"	, "a|bcd|e", "|bc"	, 2, 5, false);
 	}	void tst_HasAtBgn(String tst, String src, String find, int bgn, int end, boolean expd) {Tfds.Eq(expd, Bry_.Has_at_bgn(Bry_.new_u8(src), Bry_.new_u8(find), bgn, end), tst);}
-	@Test  public void Match() {
+	@Test public void Match() {
 		tst_Match("abc", 0, "abc", true);
 		tst_Match("abc", 2,  "c", true);
 		tst_Match("abc", 0, "cde", false);
@@ -102,7 +106,7 @@ public class Bry__tst {
 		tst_Match(""  , 0, "", true);
 		tst_Match("ab", 0, "a", false);	// FIX: "ab" should not match "a" b/c .length is different
 	}	void tst_Match(String src, int srcPos, String find, boolean expd) {Tfds.Eq(expd, Bry_.Match(Bry_.new_u8(src), srcPos, Bry_.new_u8(find)));}
-	@Test  public void ReadCsvStr() {
+	@Test public void ReadCsvStr() {
 		tst_ReadCsvStr("a|"	   , "a");
 		tst_ReadCsvStr("|a|", 1 , "a");
 		Int_obj_ref bgn = Int_obj_ref.New_zero(); tst_ReadCsvStr("a|b|c|", bgn, "a"); tst_ReadCsvStr("a|b|c|", bgn, "b"); tst_ReadCsvStr("a|b|c|", bgn, "c");
@@ -119,13 +123,13 @@ public class Bry__tst {
 		tst_ReadCsvStr_err("'a|");
 		tst_ReadCsvStr_err("'a'");
 	}
-	@Test  public void XtoIntBy4Bytes() {	// test len=1, 2, 3, 4
+	@Test public void XtoIntBy4Bytes() {	// test len=1, 2, 3, 4
 		tst_XtoIntBy4Bytes(32, (byte)32);			// space
 		tst_XtoIntBy4Bytes(8707, (byte)34, (byte)3);	// &exist;
 		tst_XtoIntBy4Bytes(6382179, Byte_ascii.Ltr_a, Byte_ascii.Ltr_b, Byte_ascii.Ltr_c);
 		tst_XtoIntBy4Bytes(1633837924, Byte_ascii.Ltr_a, Byte_ascii.Ltr_b, Byte_ascii.Ltr_c, Byte_ascii.Ltr_d);
 	}
-	@Test  public void XtoInt() {
+	@Test public void XtoInt() {
 		tst_XtoInt("1", 1);
 		tst_XtoInt("123", 123);
 		tst_XtoInt("a", Int_.Min_value, Int_.Min_value);
@@ -157,18 +161,18 @@ public class Bry__tst {
 		catch (Exception e) {Err_.Noop(e); return;}
 		Tfds.Fail_expdError();
 	}
-	@Test  public void ReadCsvDte() {
+	@Test public void ReadCsvDte() {
 		tst_ReadCsvDte("20110801 221435.987");
 	}	void tst_ReadCsvDte(String raw) {Tfds.Eq_date(DateAdp_.parse_fmt(raw, Bry_.Fmt_csvDte), Bry_.ReadCsvDte(Bry_.new_u8(raw + "|"), Int_obj_ref.New_zero(), (byte)'|'));}
-	@Test  public void ReadCsvInt() {
+	@Test public void ReadCsvInt() {
 		tst_ReadCsvInt("1234567890");
 	}	void tst_ReadCsvInt(String raw) {Tfds.Eq(Int_.Parse(raw), Bry_.ReadCsvInt(Bry_.new_u8(raw + "|"), Int_obj_ref.New_zero(), (byte)'|'));}
-	@Test  public void Trim() {
+	@Test public void Trim() {
 		Trim_tst("a b c", 1, 4, "b");
 		Trim_tst("a  c", 1, 3, "");
 		Trim_tst("  ", 0, 2, "");
 	}	void Trim_tst(String raw, int bgn, int end, String expd) {Tfds.Eq(expd, String_.new_u8(Bry_.Trim(Bry_.new_u8(raw), bgn, end)));}
-	@Test  public void Xto_int_lax() {
+	@Test public void Xto_int_lax() {
 		tst_Xto_int_lax("12a", 12);
 		tst_Xto_int_lax("1", 1);
 		tst_Xto_int_lax("123", 123);
@@ -176,14 +180,14 @@ public class Bry__tst {
 		tst_Xto_int_lax("-1", -1);
 	}
 	private void tst_Xto_int_lax(String val, int expd)				{Tfds.Eq(expd, Bry_.To_int_or__lax(Bry_.new_u8(val), 0, String_.Len(val), 0));}
-	@Test  public void To_int_or__trim_ws() {
+	@Test public void To_int_or__trim_ws() {
 		tst_Xto_int_trim("123 "	, 123);
 		tst_Xto_int_trim(" 123"	, 123);
 		tst_Xto_int_trim(" 123 "	, 123);
 		tst_Xto_int_trim(" 1 3 "	, -1);
 	}
 	private void tst_Xto_int_trim(String val, int expd)			{Tfds.Eq(expd, Bry_.To_int_or__trim_ws(Bry_.new_u8(val), 0, String_.Len(val), -1));}
-	@Test  public void Compare() {
+	@Test public void Compare() {
 		tst_Compare("abcde", 0, 1, "abcde", 0, 1, CompareAble_.Same);
 		tst_Compare("abcde", 0, 1, "abcde", 1, 2, CompareAble_.Less);
 		tst_Compare("abcde", 1, 2, "abcde", 0, 1, CompareAble_.More);
@@ -191,7 +195,7 @@ public class Bry__tst {
 		tst_Compare("abcde", 0, 2, "abcde", 0, 1, CompareAble_.More);
 		tst_Compare("abcde", 2, 3, "abçde", 2, 3, CompareAble_.Less);
 	}	void tst_Compare(String lhs, int lhs_bgn, int lhs_end, String rhs, int rhs_bgn, int rhs_end, int expd) {Tfds.Eq(expd, Bry_.Compare(Bry_.new_u8(lhs), lhs_bgn, lhs_end, Bry_.new_u8(rhs), rhs_bgn, rhs_end));}
-	@Test  public void Increment_last() {
+	@Test public void Increment_last() {
 		tst_IncrementLast(ary_(0), ary_(1));
 		tst_IncrementLast(ary_(0, 255), ary_(1, 0));
 		tst_IncrementLast(ary_(104, 111, 112, 101), ary_(104, 111, 112, 102));
@@ -203,12 +207,12 @@ public class Bry__tst {
 		return rv;
 	}
 	void tst_IncrementLast(byte[] ary, byte[] expd) {Tfds.Eq_ary(expd, Bry_.Increment_last(Bry_.Copy(ary)));}
-	@Test   public void Replace_between() {
+	@Test public void Replace_between() {
 		tst_Replace_between("a[0]b"					, "[", "]", "0", "a0b");
 		tst_Replace_between("a[0]b[1]c"				, "[", "]", "0", "a0b0c");
 		tst_Replace_between("a[0b"					, "[", "]", "0", "a[0b");
 	}	public void tst_Replace_between(String src, String bgn, String end, String repl, String expd) {Tfds.Eq(expd, String_.new_a7(Bry_.Replace_between(Bry_.new_a7(src), Bry_.new_a7(bgn), Bry_.new_a7(end), Bry_.new_a7(repl))));}
-	@Test    public void Replace() {
+	@Test public void Replace() {
 		Bry_bfr tmp_bfr = Bry_bfr_.New();
 		tst_Replace(tmp_bfr, "a0b"					,    "0", "00", "a00b");		// 1 -> 1
 		tst_Replace(tmp_bfr, "a0b0c"				,    "0", "00", "a00b00c");		// 1 -> 2
@@ -221,7 +225,7 @@ public class Bry__tst {
 	public void tst_Replace(Bry_bfr tmp_bfr, String src, String bgn, String repl, String expd) {
 		Tfds.Eq(expd, String_.new_a7(Bry_.Replace(tmp_bfr, Bry_.new_a7(src), Bry_.new_a7(bgn), Bry_.new_a7(repl))));
 	}
-	@Test  public void Split_bry() {
+	@Test public void Split_bry() {
 		Split_bry_tst("a|b|c|"		, "|"	, String_.Ary("a", "b", "c"));
 		Split_bry_tst("a|"			, "|"	, String_.Ary("a"));
 	}
@@ -229,7 +233,7 @@ public class Bry__tst {
 		String[] actl = String_.Ary(Bry_split_.Split(Bry_.new_a7(src), Bry_.new_a7(dlm)));
 		Tfds.Eq_ary_str(expd, actl);
 	}
-	@Test   public void Split_lines() {
+	@Test public void Split_lines() {
 		Tst_split_lines("a\nb"		, "a", "b");					// basic
 		Tst_split_lines("a\nb\n"	, "a", "b");					// do not create empty trailing lines
 		Tst_split_lines("a\r\nb"	, "a", "b");					// crlf
@@ -245,7 +249,7 @@ public class Bry__tst {
 			rv[i] = String_.new_u8(lines[i]);
 		return rv;
 	}
-	@Test   public void Match_bwd_any() {
+	@Test public void Match_bwd_any() {
 		Tst_match_bwd_any("abc", 2, 0, "c", true);
 		Tst_match_bwd_any("abc", 2, 0, "b", false);
 		Tst_match_bwd_any("abc", 2, 0, "bc", true);
@@ -256,38 +260,48 @@ public class Bry__tst {
 	void Tst_match_bwd_any(String src, int src_end, int src_bgn, String find, boolean expd) {
 		Tfds.Eq(expd, Bry_.Match_bwd_any(Bry_.new_a7(src), src_end, src_bgn, Bry_.new_a7(find)));
 	}
-	@Test   public void Trim_end() {
+	@Test public void Trim_bgn() {
+		fxt.Test_trim_bgn(" a"		, Byte_ascii.Space, "a");	// trim.one
+		fxt.Test_trim_bgn("   a"	, Byte_ascii.Space, "a");	// trim.many
+		fxt.Test_trim_bgn("a"		, Byte_ascii.Space, "a");	// trim.none
+		fxt.Test_trim_bgn(""		, Byte_ascii.Space, "");	// empty
+	}
+	@Test public void Trim_end() {
 		fxt.Test_trim_end("a "		, Byte_ascii.Space, "a");	// trim.one
 		fxt.Test_trim_end("a   "	, Byte_ascii.Space, "a");	// trim.many
 		fxt.Test_trim_end("a"		, Byte_ascii.Space, "a");	// trim.none
 		fxt.Test_trim_end(""		, Byte_ascii.Space, "");	// empty
 	}
-	@Test   public void Mid_w_trim() {
+	@Test public void Mid_w_trim() {
 		fxt.Test_Mid_w_trim("abc", "abc");								// no ws
 		fxt.Test_Mid_w_trim(" a b c ", "a b c");						// ws at bgn and end
 		fxt.Test_Mid_w_trim("\r\n\t a\r\n\t b \r\n\t ", "a\r\n\t b");	// space at bgn and end
 		fxt.Test_Mid_w_trim("", "");									// handle 0 bytes
 		fxt.Test_Mid_w_trim("   ", "");									// handle all ws
 	}
-	@Test   public void New_u8_nl_apos() {
+	@Test public void New_u8_nl_apos() {
 		fxt.Test__new_u8_nl_apos(String_.Ary("a"), "a");
 		fxt.Test__new_u8_nl_apos(String_.Ary("a", "b"), "a\nb");
 		fxt.Test__new_u8_nl_apos(String_.Ary("a", "b'c", "d"), "a\nb\"c\nd");
 	}
-	@Test   public void Repeat_bry() {
+	@Test public void Repeat_bry() {
 		fxt.Test__repeat_bry("abc"  , 3, "abcabcabc");
 	}
-	@Test   public void Xcase__build__all() {
+	@Test public void Xcase__build__all() {
 		fxt.Test__xcase__build__all(Bool_.N, "abc", "abc");
 		fxt.Test__xcase__build__all(Bool_.N, "aBc", "abc");
 	}
 }
 class Bry__fxt {
-	private final    Bry_bfr tmp = Bry_bfr_.New();
+	private final Bry_bfr tmp = Bry_bfr_.New();
 	public void Test_trim_end(String raw, byte trim, String expd) {
 		byte[] raw_bry = Bry_.new_a7(raw);
 		Tfds.Eq(expd, String_.new_u8(Bry_.Trim_end(raw_bry, trim, raw_bry.length)));
 	}
+	public void Test_trim_bgn(String raw, byte trim, String expd) {
+		byte[] raw_bry = Bry_.new_a7(raw);
+		Tfds.Eq(expd, String_.new_u8(Bry_.Trim_bgn(raw_bry, trim, 0)));
+	}
 	public void Test_new_u8(String raw, byte[] expd)			{Tfds.Eq_ary(expd, Bry_.new_u8(raw));}
 	public void Test_new_a7(String raw, byte[] expd)			{Tfds.Eq_ary(expd, Bry_.new_a7(raw));}
 	public void Test_add(String s, byte b, String expd)			{Tfds.Eq_str(expd, String_.new_u8(Bry_.Add(Bry_.new_u8(s), b)));}

100_core/src/gplx/Bry_bfr.java

@@ -588,7 +588,7 @@ public class Bry_bfr {
 	public byte[] To_bry() {return bfr_len == 0 ? Bry_.Empty : Bry_.Mid(bfr, 0, bfr_len);}
 	public byte[] To_bry_and_clear_and_trim() {return To_bry_and_clear_and_trim(true, true, Bry_.Trim_ary_ws);}
 	public byte[] To_bry_and_clear_and_trim(boolean trim_bgn, boolean trim_end, byte[] trim_bry) {
-		byte[] rv = Bry_.Trim(bfr, 0, bfr_len, trim_bgn, trim_end, trim_bry);
+		byte[] rv = Bry_.Trim(bfr, 0, bfr_len, trim_bgn, trim_end, trim_bry, false); // NOTE: must not reuse bry; ISSUE#:562; DATE:2019-09-02
 		this.Clear();
 		return rv;
 	}

100_core/src/gplx/Bry_bfr_tst.java

@@ -219,6 +219,20 @@ public class Bry_bfr_tst {
 		fxt.Test__to_bry_ary_and_clear("a\nb\nc"	, "a", "b", "c");		// lines=n
 		fxt.Test__to_bry_ary_and_clear("a\n"		, "a");					// nl at end
 	}
+	@Test   public void To_bry_ary_and_clear_and_trim__memory_reference_bug() {// PURPOSE:test that bry isn't reused; ISSUE#:562; DATE:2019-09-02
+		String str_a = "aaaaaaaaaaaaaaaa" // NOTE: length is 16 b/c bry_bfr init's to 16 len
+			,  str_b = "bbbbbbbbbbbbbbbb";
+		Bry_bfr bfr = Bry_bfr_.New();
+		bfr.Add_str_a7(str_a);
+		byte[] bry_a = bfr.To_bry_and_clear_and_trim();
+		Gftest.Eq__str(str_a, String_.new_u8(bry_a));
+
+		bfr.Add_str_a7(str_b);
+		byte[] bry_b = bfr.To_bry_and_clear_and_trim();
+		Gftest.Eq__str(str_b, String_.new_u8(bry_b));
+
+		Gftest.Eq__str(str_a, String_.new_u8(bry_a)); // fais if bry_b
+	}
 }
 class ByteAryBfr_fxt {
 	private final    Bry_bfr bfr = Bry_bfr_.Reset(16);

100_core/src/gplx/Byte_ascii.java

@@ -114,6 +114,7 @@ public class Byte_ascii {
 	, Lt_bry				= new byte[] {Byte_ascii.Lt}
 	, Gt_bry				= new byte[] {Byte_ascii.Gt}
 	, Question_bry			= new byte[] {Byte_ascii.Question}
+	, Backslash_bry         = new byte[] {Byte_ascii.Backslash}
 	, Brack_bgn_bry			= new byte[] {Byte_ascii.Brack_bgn}
 	, Brack_end_bry			= new byte[] {Byte_ascii.Brack_end}
 	, Apos_bry				= new byte[] {Byte_ascii.Apos}

100_core/src/gplx/Char_.java

@@ -56,13 +56,14 @@ public class Char_ {
 			if (itm == match) return true;
 		return false;
 	}
-	public static int To_int_or(char c, int or) {
+	public static int To_digit_or(char c, int or) {
 		switch (c) {
 			case '0': return 0; case '1': return 1; case '2': return 2; case '3': return 3; case '4': return 4;
 			case '5': return 5; case '6': return 6; case '7': return 7; case '8': return 8; case '9': return 9;
 			default: return or;
 		}
 	}
+	public static int To_int(char c) {return (int)c;}
 	public static String To_str(char[] ary, int pos, int length) {return new String(ary, pos, length);}
 	public static String To_str(int b) {return To_str((char)b);}
 	public static String To_str(char c) {return String.valueOf(c);}	

100_core/src/gplx/DateAdp.java

@@ -85,6 +85,9 @@ public class DateAdp implements CompareAble, Gfo_invk {
 				: Timezone_offset_test
 				;
 	}
+	public String Timezone_id() {
+		return "UTC"; // under.getTimeZone().getID(); // NOTE: timezone is always UTC, unless over-ridden by tests
+	}
 	public DateAdp XtoUtc() {
 		java.util.Date date = under.getTime();
 		java.util.TimeZone tz = under.getTimeZone();
@@ -109,6 +112,7 @@ public class DateAdp implements CompareAble, Gfo_invk {
 		long dst_adj = dst ? 3600000 : 0;
 		return (under.getTimeInMillis() + offsetFromUTC + dst_adj) / 1000;
 	}
+
 	public int WeekOfYear() {return under.get(Calendar.WEEK_OF_YEAR);}
 	public int Frac() {return under.get(Calendar.MILLISECOND);}
 	public DateAdp Add_frac(int val) {return CloneAndAdd(Calendar.MILLISECOND, val);}
@@ -147,5 +151,17 @@ public class DateAdp implements CompareAble, Gfo_invk {
 		this.under = new GregorianCalendar(year, month - Month_base0adj, day, hour, minute, second);
 		under.set(Calendar.MILLISECOND, frac);
 	}
+	protected DateAdp(int year, int month, int day, int hour, int minute, int second, int frac, TimeZone timeZone) {
+		this.under = new GregorianCalendar(timeZone);
+		under.set(year, month - Month_base0adj, day, hour, minute, second);
+		under.set(Calendar.MILLISECOND, frac);
+	}
+	public void SetTzOffset(int offset) {
+		java.util.Date date = under.getTime();
+		long msFromEpochGmt = date.getTime();
+		Calendar cal = Calendar.getInstance();
+		cal.setTimeInMillis(msFromEpochGmt - offset*1000);
+		under = cal;
+	}
 	public static final int Month_base0adj = 1;
 	}

100_core/src/gplx/DateAdp_.java

@@ -66,11 +66,13 @@ public class DateAdp_ implements Gfo_invk {
 	public static DateAdp dateTime_obj_(Object v) {return new DateAdp((GregorianCalendar)v);}
 	public static final    DateAdp_ Gfs = new DateAdp_();
 
-	public static int DaysInMonth(DateAdp date) {			
-		int rv = DaysInMonth_ary[date.Month() - Int_.Base1];
-		if (rv == 28 && IsLeapYear(date.Year())) rv = 29;
+	public static int DaysInMonth(DateAdp date) {return DaysInMonth(date.Month(), date.Year());}
+	public static int DaysInMonth(int month, int year) {
+		int rv = DaysInMonth_ary[month - Int_.Base1];
+		if (rv == 28 && IsLeapYear(year)) rv = 29;
 		return rv;
-	}	static int [] DaysInMonth_ary = {31,28,31,30,31,30,31,31,30,31,30,31};
+	}
+	private static int [] DaysInMonth_ary = {31,28,31,30,31,30,31,31,30,31,30,31};
 	public static boolean IsLeapYear(int year) {
 		if		(year % 4   != 0)	return false;
 		else if (year % 400 == 0)	return true;
@@ -114,10 +116,29 @@ public class DateAdp_ implements Gfo_invk {
 		c.setTimeInMillis(v);
 		return new DateAdp(c);
 	}
-		public static final int SegIdx_year = 0, SegIdx_month = 1, SegIdx_day = 2, SegIdx_hour = 3, SegIdx_minute = 4, SegIdx_second = 5, SegIdx_frac = 6, SegIdx_dayOfWeek = 7, SegIdx_weekOfYear = 8, SegIdx_dayOfYear = 9, SegIdx__max = 10;
+	public static DateAdp New_w_tz(int y, int m, int d, int h, int i, int s, int us, String tz_id) {
+		TimeZone tz = String_.Eq(tz_id, "UTC") ? TIME_ZONE__UTC : TimeZone.getTimeZone(tz_id);
+		return new DateAdp(y, m, d, h, i, s, us/1000, tz);
+	}
+	private static TimeZone TIME_ZONE__UTC = TimeZone.getTimeZone("UTC");
+		public static final int
+	  SegIdx_year = 0, SegIdx_month = 1, SegIdx_day = 2, SegIdx_hour = 3, SegIdx_minute = 4, SegIdx_second = 5
+	, SegIdx_frac = 6, SegIdx_dayOfWeek = 7, SegIdx_weekOfYear = 8, SegIdx_dayOfYear = 9, SegIdx_tz = 10, SegIdx__max = 11;
 	public static String Xto_str_fmt_or(DateAdp v, String fmt, String or) {
 		return v == null ? or : v.XtoStr_fmt(fmt);
 	}
+	public static DateAdp FirstDayofYear(int year) {
+		return new DateAdp(year, 1, 1, 0, 0, 0, 0);
+	}
+	public static DateAdp DateByDayofYear(int year, int day) {
+		return new DateAdp(year, 1, day, 0, 0, 0, 0);
+	}
+	public static DateAdp DateByBits(int y, int m, int d, int h, int i, int s, int us, int tz_ofs, byte[] tz_abbr) {
+		DateAdp dte = new DateAdp(y, m, d, h, i, s, us/1000);
+				if (tz_ofs != 0)
+					dte.SetTzOffset(tz_ofs);
+				return dte;
+	}
 	public static final String 
 	  Fmt_iso8561_date_time = "yyyy-MM-dd HH:mm:ss"
 	, Fmt__yyyyMMdd			= "yyyyMMdd";

100_core/src/gplx/DateAdp__tst.java

@@ -60,6 +60,9 @@ public class DateAdp__tst {
 	@Test  public void XtoUtc() {
 		fxt.Test__to_utc("2012-01-01 00:00", "2012-01-01 05:00");	//4=Wed
 	}
+	@Test  public void Timezone_id() {
+		fxt.Test__timezone_id("2015-12-26T10:03:53Z", "UTC");
+	}
 }
 class DateAdp__fxt {
 	public void Test__parse_gplx(String raw, String expd) {
@@ -83,4 +86,7 @@ class DateAdp__fxt {
 	public void Test__to_utc(String raw, String expd) {
 		Tfds.Eq(expd, DateAdp_.parse_gplx(raw).XtoUtc().XtoStr_fmt_yyyy_MM_dd_HH_mm());
 	}
+	public void Test__timezone_id(String raw, String expd) {
+		Gftest.Eq__str(expd, DateAdp_.parse_gplx(raw).XtoUtc().Timezone_id());
+	}
 }

100_core/src/gplx/Decimal_adp.java

@@ -20,6 +20,7 @@ import java.math.RoundingMode;
 import java.text.DecimalFormat;
 public class Decimal_adp implements CompareAble {
 	public int compareTo(Object obj) {Decimal_adp comp = (Decimal_adp)obj; return under.compareTo(comp.under);}
+	public Decimal_adp Floor()						{return Decimal_adp_.int_(this.To_int());}
 		protected Decimal_adp(BigDecimal v) {this.under = v;} private final BigDecimal under;
 	protected Decimal_adp(int v) {this.under = new BigDecimal(v);}
 	public Object Under() 								{return under;}
@@ -79,6 +80,9 @@ public class Decimal_adp implements CompareAble {
 		} 
 		return new Decimal_adp(new_val);
 	}
+	public Decimal_adp Round_to_default_precision() {
+		return new Decimal_adp(under.round(Decimal_adp_.Gplx_rounding_context));
+	}
 	public boolean Comp_gte(Decimal_adp v) 				{return under.doubleValue() >= v.under.doubleValue();}
 	public boolean Comp_gte(int v) 						{return under.doubleValue() >= v;}
 	public boolean Comp_lte(Decimal_adp v) 				{return under.doubleValue() <= v.under.doubleValue();}

100_core/src/gplx/Decimal_adp_.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2021 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.
@@ -14,10 +14,15 @@ 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;
-import java.math.BigDecimal;
import java.math.MathContext;
import java.math.RoundingMode;
import java.text.DecimalFormat;
+
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.math.RoundingMode;
+import java.text.DecimalFormat;
 import java.text.NumberFormat;
 import java.text.ParseException;
 import java.util.Locale;
+
 public class Decimal_adp_ {
 	public static final String Cls_val_name = "decimal";
 	public static final    Class<?> Cls_ref_type = Decimal_adp.class;
@@ -53,17 +58,34 @@ public class Decimal_adp_ {
 		return Decimal_adp_.float_(Float_.Div(dividend, divisor) * 100).To_str(fmt) + "%";
 	}
 	public static Decimal_adp divide_safe_(long lhs, long rhs) {return rhs == 0 ? Zero : divide_(lhs, rhs);}
-		public static Decimal_adp divide_(long lhs, long rhs) {
		return new Decimal_adp(new BigDecimal(lhs).divide(new BigDecimal(rhs), Gplx_rounding_context));
	}
	public static Decimal_adp int_(int v) {return new Decimal_adp(new BigDecimal(v));}
	public static Decimal_adp long_(long v) {return new Decimal_adp(new BigDecimal(v));}
-	public static Decimal_adp float_(float v) {return new Decimal_adp(new BigDecimal(v));}
	public static Decimal_adp double_(double v) {return new Decimal_adp(new BigDecimal(v));}
+		public static Decimal_adp divide_(long lhs, long rhs) {
+		return new Decimal_adp(new BigDecimal(lhs).divide(new BigDecimal(rhs), Gplx_rounding_context));
+	}
+	public static Decimal_adp int_(int v) {return new Decimal_adp(new BigDecimal(v));}
+	public static Decimal_adp long_(long v) {return new Decimal_adp(new BigDecimal(v));}
+	public static Decimal_adp float_(float v) {return new Decimal_adp(new BigDecimal(v));}
+	public static Decimal_adp double_(double v) {return new Decimal_adp(new BigDecimal(v));}
 	public static Decimal_adp double_thru_str_(double v) {return new Decimal_adp(BigDecimal.valueOf(v));}
-	public static Decimal_adp db_(Object v) {return new Decimal_adp((BigDecimal)v);}
	public static Decimal_adp parse(String raw) {
+	public static Decimal_adp db_(Object v) {return new Decimal_adp((BigDecimal)v);}
+	public static Decimal_adp parse(String raw) {
 		try {
 	        DecimalFormat nf = (DecimalFormat)NumberFormat.getInstance(Locale.US);	// always parse as US format; EX:".9" should not be ",9" in german; DATE:2016-01-31
 	        nf.setParseBigDecimal(true);
+	        // 2020-08-27|ISSUE#:565|Parse 'e' as 'E'; PAGE:en.w:Huntington_Plaza
+	        if (raw.contains("e")) {
+	        	raw = raw.replace("e", "E");
+	        }
+	        // 2021-02-13|ISSUE#:838|Parse '.' as '0.'; PAGE:en.w:2019_FIVB_Volleyball_Women%27s_Challenger_Cup#Pool_A
+			if (raw.startsWith(".")) {
+				raw = "0" + raw;
+			}
 	        BigDecimal bd = (BigDecimal)nf.parse(raw);
 			return new Decimal_adp(bd);
 		} catch (ParseException e) {
 			throw Err_.new_("Decimal_adp_", "parse to decimal failed", "raw", raw);
 		}
-	}
	public static Decimal_adp pow_10_(int v) {return new Decimal_adp(new BigDecimal(1).scaleByPowerOfTen(v));}
-	public static final MathContext RoundDownContext = new MathContext(0, RoundingMode.DOWN);
	public static final MathContext Gplx_rounding_context = new MathContext(14, RoundingMode.HALF_UP);	// changed from 28 to 14; DATE:2015-07-31
	}
+	}
+	public static Decimal_adp pow_10_(int v) {return new Decimal_adp(new BigDecimal(1).scaleByPowerOfTen(v));}
+	public static final MathContext RoundDownContext = new MathContext(0, RoundingMode.DOWN);
+	public static final MathContext Gplx_rounding_context = new MathContext(14, RoundingMode.HALF_UP);	// changed from 28 to 14; DATE:2015-07-31
+}

100_core/src/gplx/Decimal_adp__tst.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2021 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.
@@ -14,52 +14,59 @@ 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;
+
 import org.junit.*;
+
 public class Decimal_adp__tst {
 	private final Decimal_adp__fxt fxt = new Decimal_adp__fxt();
-	@Test  public void divide_() {
+	@Test public void divide_() {
 		fxt.Test_divide(1, 1000, "0.001");
 		fxt.Test_divide(1, 3, "0.33333333333333");	
 		fxt.Test_divide(1, 7, "0.14285714285714");	
 	}
-	@Test  public void base1000_() {
+	@Test public void base1000_() {
 		fxt.Test_base_1000(1000, "1");
 		fxt.Test_base_1000(1234, "1.234");
 		fxt.Test_base_1000(123, "0.123");
 	}
-	@Test  public void parts_() {
+	@Test public void parts_() {
 		fxt.Test_parts(1, 0, "1");
 		fxt.Test_parts(1, 2, "1.2");
 		fxt.Test_parts(1, 23, "1.23");
 		fxt.Test_parts(123, 4567, "123.4567");
 	}
-	@Test  public void parse() {
+	@Test public void parse() {
 		fxt.Test_parse("1", "1");
 		fxt.Test_parse("1.2", "1.2");
 		fxt.Test_parse("0.1", "0.1");
+		fxt.Test_parse("1.2E1", "12");
+		fxt.Test_parse("1.2e1", "12"); // 2020-08-27|ISSUE#:565|Parse 'e' as 'E'; PAGE:en.w:Huntington_Plaza
 	}
-	@Test  public void Truncate_decimal() {
+	@Test public void parse_dot() {
+		fxt.Test_parse(".", "0"); // 2021-02-13|ISSUE#:838|Parse '.' as '0.'; PAGE:en.w:2019_FIVB_Volleyball_Women%27s_Challenger_Cup#Pool_A
+	}
+	@Test public void Truncate_decimal() {
 		fxt.Test_truncate_decimal("1", "1");
 		fxt.Test_truncate_decimal("1.1", "1");
 		fxt.Test_truncate_decimal("1.9", "1");
 	}
-	@Test  public void Fraction1000() {
+	@Test public void Fraction1000() {
 		fxt.Test_frac_1000(1, 1000, 1);			// 0.001
 		fxt.Test_frac_1000(1, 3, 333);			// 0.33333333
 		fxt.Test_frac_1000(1234, 1000, 234);		// 1.234
 		fxt.Test_frac_1000(12345, 10000, 234);	// 1.2345
 	}
-	@Test  public void Lt() {
+	@Test public void Lt() {
 		fxt.Test_comp_lt(1,123, 2, true);
 		fxt.Test_comp_lt(1,99999999, 2, true);
 	}
-	@Test  public void To_str_fmt() {
+	@Test public void To_str_fmt() {
 		fxt.Test_to_str_fmt(1, 2, "0.0", "0.5");
 		fxt.Test_to_str_fmt(1, 3, "0.0", "0.3");
 		fxt.Test_to_str_fmt(10000, 7, "0,000.000", "1,428.571");
 		fxt.Test_to_str_fmt(1, 2, "00.00", "00.50");
 	}
-	@Test  public void Round() {
+	@Test public void Round() {
 		fxt.Test_round("123.456",  3, "123.456");
 		fxt.Test_round("123.456",  2, "123.46");
 		fxt.Test_round("123.456",  1, "123.5");

100_core/src/gplx/Double_.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -14,6 +14,7 @@ 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;
+
 public class Double_ {
 	public static final String Cls_val_name = "double";
 	public static final    Class<?> Cls_ref_type = Double.class; 
@@ -42,7 +43,9 @@ public class Double_ {
 		int v_as_int = (int)v;			
 		return v == v_as_int
 			? Int_.To_str(v_as_int)		// convert to int, and call print String to eliminate any trailing decimal places
-			: Float_.To_str((float)v);	// calling ((float)v).toString is better at removing trailing 0s than String.format("%g", v). note that .net .toString() handles it better; EX:2449.600000000000d; DATE:2014-07-29
+			// DATE:2014-07-29; calling ((float)v).toString is better at removing trailing 0s than String.format("%g", v). note that .net .toString() handles it better; EX:2449.600000000000d
+			// DATE:2020-08-12; calling ToStrByPrintF b/c better at removing trailing 0s; ISSUE#:697;
+			: gplx.objects.primitives.Double_.ToStrByPrintF(v);
 	}
 	public static int Compare(double lhs, double rhs) {
 		if		(lhs == rhs) 	return CompareAble_.Same;

100_core/src/gplx/Gfo_usr_dlg__log_base.java

@@ -16,6 +16,7 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 package gplx;
 import gplx.core.strings.*; import gplx.core.consoles.*; import gplx.core.brys.fmtrs.*;
 public class Gfo_usr_dlg__log_base implements Gfo_usr_dlg__log {
+	private final    Object thread_lock = new Object();
 	private int archive_dirs_max = 8;
 	private Io_url log_dir, err_fil;
 	private final    Ordered_hash queued_list = Ordered_hash_.New();
@@ -85,8 +86,13 @@ public class Gfo_usr_dlg__log_base implements Gfo_usr_dlg__log {
 		} 
 		catch (Exception e) {Err_.Noop(e);}			// java.lang.StringBuilder can throw exceptions in some situations when called on a different thread; ignore errors
 	}	private String_bldr sb = String_bldr_.new_thread();	// NOTE: use java.lang.StringBuffer to try to avoid random exceptions when called on a different thread
-	private String Bld_msg(String s) {return sb.Add(Datetime_now.Get_force().XtoUtc().XtoStr_fmt_yyyyMMdd_HHmmss_fff()).Add(" ").Add(s).Add_char_nl().To_str_and_clear();}
+	private String Bld_msg(String s) {
+		synchronized (thread_lock) { // THREAD:synchronized neded b/c multiple threads can still mutate the same sb; ISSUE#:646; DATE:2020-03-16
+			return sb.Add(Datetime_now.Get_force().XtoUtc().XtoStr_fmt_yyyyMMdd_HHmmss_fff()).Add(" ").Add(s).Add_char_nl().To_str_and_clear();
+		}
+	}
 	private void Log_msg(Io_url url, String txt) {
+		synchronized (thread_lock) { // THREAD:synchronized neded b/c queued_list can be accessible by multiple threads; ISSUE#:646; DATE:2020-01-09
 		if (queue_enabled) {
 			String url_raw = url == null ? "mem" : url.Raw();
 			Usr_log_fil fil = (Usr_log_fil)queued_list.Get_by(url_raw);
@@ -100,6 +106,7 @@ public class Gfo_usr_dlg__log_base implements Gfo_usr_dlg__log {
 			if (enabled)
 				Io_mgr.Instance.AppendFilStr(url, txt);
 		}
+		}
 	}
 	public Object Invk(GfsCtx ctx, int ikey, String k, GfoMsg m) {
 		if		(ctx.Match(k, "enabled_"))				enabled = m.ReadYn("v");

100_core/src/gplx/Hash_adp.java

@@ -21,6 +21,7 @@ public interface Hash_adp extends gplx.core.lists.EnumerAble {
 	Object     Get_by_or_fail(Object key);
 	void       Add(Object key, Object val);
 	Hash_adp   Add_and_more(Object key, Object val);
+	Hash_adp   Add_many_as_key_and_val(Object... ary);
 	void       Add_as_key_and_val(Object val);
 	boolean    Add_if_dupe_use_1st(Object key, Object val);
 	void       Add_if_dupe_use_nth(Object key, Object val);

100_core/src/gplx/Hash_adp_.java

@@ -27,6 +27,7 @@ class Hash_adp_noop implements Hash_adp {
 	public Object Get_by_or_fail(Object key)				{throw Err_.new_missing_key(Object_.Xto_str_strict_or_null_mark(key));}
 	public void Add(Object key, Object val) {}
 	public Hash_adp Add_and_more(Object key, Object val) {return this;}
+	public Hash_adp Add_many_as_key_and_val(Object... ary) {return this;}
 	public void Add_as_key_and_val(Object val) {}
 	public void Add_if_dupe_use_nth(Object key, Object val) {}
 	public boolean Add_if_dupe_use_1st(Object key, Object val) {return false;}

100_core/src/gplx/Int_.java

@@ -28,6 +28,7 @@ public class Int_ {
 	, Null          = Int_.Min_value
 	, Base1         = 1 // for super 1 lists / arrays; EX: PHP; [a, b, c]; [1] => a
 	, Offset_1      = 1 // common symbol for + 1 after current pos; EX: String_.Mid(lhs + Offset_1, rhs)
+	, Zero          = 0
 	;
 
 	public static int Cast(Object obj) {

100_core/src/gplx/Int_ary_.java

@@ -25,6 +25,15 @@ public class Int_ary_ {//RF:DATE:2017-10-09
 			trg[i] = src[i];
 	}
 
+	public static int[] Mid(int[] src, int bgn, int end) {
+		int len = end - bgn + 1;
+		int[] rv = new int[len];
+		for (int i = 0; i < len; i++) {
+			rv[i] = src[i + bgn];
+		}
+		return rv;
+	}
+
 	public static String To_str(String spr, int... ary) {
 		Bry_bfr bfr = Bry_bfr_.New();
 		int len = ary.length;

100_core/src/gplx/Io_url__tst.java

@@ -24,7 +24,9 @@ public class Io_url__tst {
 class Io_url__fxt {
 	public void Clear() {Io_mgr.Instance.InitEngine_mem();}
 	public void Test__New__http_or_null(boolean os_is_wnt, String raw, String expd) {
+		int curTid = Op_sys.Cur().Tid();
 		Op_sys.Cur_(os_is_wnt ? Op_sys.Tid_wnt : Op_sys.Tid_lnx);
 		Gftest.Eq__obj_or_null(expd, Io_url_.New__http_or_null(raw));
+		Op_sys.Cur_(curTid);
 	}
 }

100_core/src/gplx/Long_.java

@@ -40,7 +40,7 @@ public class Long_ {
 			if (raw == null || rawLen == 0) return or;
 			long rv = 0, factor = 1; int tmp = 0;
 			for (int i = rawLen; i > 0; i--) {
-				tmp = Char_.To_int_or(String_.CharAt(raw, i - 1), Int_.Min_value);
+				tmp = Char_.To_digit_or(String_.CharAt(raw, i - 1), Int_.Min_value);
 				if (tmp == Int_.Min_value) return or;
 				rv += (tmp * factor);
 				factor *= 10;

100_core/src/gplx/Math_.java

@@ -16,6 +16,7 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 package gplx;
 public class Math_ {
 	public static double	Pow(double val, double exponent) {return java.lang.Math.pow(val, exponent);}
+	public static int       Pow_int(int val, int exponent) {return (int)java.lang.Math.pow(val, exponent);}
 	public static double	Pi = java.lang.Math.PI; 
 	public static double	E = java.lang.Math.E; 
 	public static int		Ceil_as_int(double v) {return (int)Ceil(v);}

100_core/src/gplx/String_.java

@@ -21,7 +21,7 @@ public class String_ {
 	public static final    Class<?> Cls_ref_type = String.class;
 	public static final String Cls_val_name = "str" + "ing";
 	public static final int Find_none = -1, Pos_neg1 = -1;
-	public static final String Empty = "", Null_mark = "<<NULL>>", Tab = "\t", Lf = "\n", CrLf = "\r\n";
+	public static final String Empty = "", Null_mark = "<<NULL>>", Tab = "\t", Lf = "\n", CrLf = "\r\n", Nl = "\n";
 
 	public static boolean Eq(String lhs, String rhs) {return lhs == null ? rhs == null : lhs.equals(rhs);} 
 	public static int Len(String s)					{return s.length();}	

100_core/src/gplx/Type_.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -14,6 +14,7 @@ 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;
+
 public class Type_ {//RF:2017-10-08
 	public static Class<?> Type_by_obj(Object o) {return o.getClass();}
 	public static Class<?> Type_by_primitive(Object o) {
@@ -45,6 +46,11 @@ public class Type_ {//RF:2017-10-08
 		return type.getName();
 	}
 
+	public static String SimpleName_by_obj(Object obj) {return obj == null ? String_.Null_mark : SimpleName(Type_by_obj(obj));}
+	public static String SimpleName(Class<?> type) {
+		return type.getSimpleName();
+	}
+
 	public static boolean Is_array(Class<?> t) {
 		return t.isArray(); 
 	}

100_core/src/gplx/core/bits/Bitmask_.java

@@ -33,6 +33,9 @@ public class Bitmask_ {
 		}
 		return rv;
 	}
+	public static int Set_or_add(int val, int flag) {
+		return val == 0 ? flag : val | flag;
+	}
 	public static boolean		Has_byte(byte val, byte find)	{return find == (val & find);}
 	public static byte		Add_byte(byte flag, byte itm)	{return (byte)(flag | itm);}
 }

100_core/src/gplx/core/brys/fmtrs/Bry_fmtr.java

@@ -124,6 +124,7 @@ public class Bry_fmtr {
 			byte[] trg_bry = new byte[fmt_len]; int trg_pos = 0;
 			boolean lkp_is_active = false, lkp_is_numeric = true;
 			byte nxt_byte, tmp_byte;
+			boolean dirty_disable = true;
 			List_adp list = List_adp_.New();
 			fmt_args_exist = false;
 			while (true) {
@@ -180,6 +181,7 @@ public class Bry_fmtr {
 						if (trg_pos > 0) {list.Add(Bry_fmtr_itm.dat_(trg_bry, trg_pos)); trg_pos = 0;}	// something pending; add it to list
 						int eval_lhs_bgn = fmt_pos + 2;
 						if (eval_lhs_bgn < fmt_len && fmt[eval_lhs_bgn] == char_eval_bgn) {	// eval found
+							dirty_disable = false; // eval allows args to retrigger compiles; this is probably not used, but just in case, do not disable dirty; TEST: Tfds.Eq("012~{<>3<>}4", fmtr.Bld_str_many("1"));
 							fmt_pos = Compile_eval_cmd(fmt, fmt_len, eval_lhs_bgn, list);
 							continue;
 						}
@@ -210,6 +212,8 @@ public class Bry_fmtr {
 			if (trg_pos > 0) {list.Add(Bry_fmtr_itm.dat_(trg_bry, trg_pos)); trg_pos = 0;}
 			itms = (Bry_fmtr_itm[])list.To_ary(Bry_fmtr_itm.class);
 			itms_len = itms.length;
+			if (dirty_disable)
+				dirty = false; // ISSUE#:575; DATE:2019-09-16
 			return this;
 		}
 	}

100_core/src/gplx/core/lists/Hash_adp_base.java

@@ -20,6 +20,11 @@ public abstract class Hash_adp_base implements Hash_adp {
 	public Object Get_by_or_fail(Object key) {return Get_by_or_fail_base(key);}
 	public void Add(Object key, Object val) {Add_base(key, val);}
 	public Hash_adp Add_and_more(Object key, Object val) {Add_base(key, val); return this;}
+	public Hash_adp Add_many_as_key_and_val(Object... ary) {
+		for (Object itm : ary)
+			Add_base(itm, itm);
+		return this;
+	}
 	public void Add_as_key_and_val(Object val) {Add_base(val, val);}
 	public void Add_if_dupe_use_nth(Object key, Object val) {
 		Object existing = Fetch_base(key); if (existing != null) Del(key);	// overwrite if exists

100_core/src/gplx/core/lists/Sorted_hash.java

@@ -22,6 +22,11 @@ public class Sorted_hash implements Hash_adp {
 	public Object Get_by_or_fail(Object key) {return Get_by_or_fail_base(key);}
 	public void Add(Object key, Object val) {Add_base(key, val);}
 	public Hash_adp Add_and_more(Object key, Object val) {Add_base(key, val); return this;}
+	public Hash_adp Add_many_as_key_and_val(Object... ary) {
+		for (Object itm : ary)
+			Add_base(itm, itm);
+		return this;
+	}
 	public void Add_as_key_and_val(Object val) {Add_base(val, val);}
 	public void Add_if_dupe_use_nth(Object key, Object val) {
 		Object existing = Fetch_base(key); if (existing != null) Del(key);	// overwrite if exists

100_core/src/gplx/core/primitives/ObjectWrapperRef.java

@@ -0,0 +1,25 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.core.primitives;
+
+import gplx.Object_;
+
+public class ObjectWrapperRef {
+	public ObjectWrapperRef() {}
+	public Object Val() {return val;} public ObjectWrapperRef Val_(Object v) {val = v; return this;} private Object val;
+	public ObjectWrapperRef Val_null_() {return Val_(null);}
+	@Override public String toString() {return Object_.Xto_str_strict_or_null(val);}
+}

100_core/src/gplx/core/security/Hash_algo_.java

@@ -1,145 +0,0 @@
-/*
-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.core.security; import gplx.*; import gplx.core.*;
-import java.math.BigInteger;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import gplx.core.consoles.*; import gplx.core.ios.streams.*; /*IoStream*/
-import gplx.core.texts.*; /*Base32Converter*/ import gplx.core.progs.*;
-public class Hash_algo_ {
-	public static Hash_algo New__md5()		{return new Hash_algo__md5();}
-	public static Hash_algo New__sha1()		{return new Hash_algo__sha1();}
-	public static Hash_algo New__sha2_256()	{return new Hash_algo__sha2_256();}
-	public static Hash_algo New__tth_192()	{return new Hash_algo__tth_192();}
-	public static Hash_algo New_by_tid(byte tid) {
-		switch (tid) {
-			case Tid__md5:			return New__md5();
-			case Tid__sha1:			return New__sha1();
-			case Tid__sha2_256:		return New__sha2_256();
-			case Tid__tth_192:		return New__tth_192();
-			default:				throw Err_.new_unhandled_default(tid);
-		}
-	}
-	public static Hash_algo New(String key) {
-		if		(key == Hash_algo__md5.KEY)			return New__md5();
-		else if (key == Hash_algo__sha1.KEY)		return New__sha1();
-		else if (key == Hash_algo__sha2_256.KEY)	return New__sha2_256();
-		else if (key == Hash_algo__tth_192.KEY)		return New__tth_192();
-		else										throw Err_.new_unhandled(key);
-	}
-	public static final byte Tid__md5 = 0, Tid__sha1 = 1, Tid__sha2_256 = 2, Tid__tth_192 = 3;
-}
-abstract class Hash_algo_base implements Hash_algo {
-	private final MessageDigest md;
-	private final byte[] trg_bry;
-	private byte[] tmp_bfr; private final int tmp_bfr_len = 4096;
-	public Hash_algo_base(MessageDigest md, int trg_bry_len) {
-		this.md = md; this.trg_bry = new byte[trg_bry_len];
-	}
-	public String Hash_bry_as_str(byte[] src) {return String_.new_a7(Hash_bry_as_bry(src));}
-	public byte[] Hash_bry_as_bry(byte[] src) {
-		Hash_algo_utl_.Hash_bry(md, src, src.length, trg_bry);
-		return Bry_.Copy(trg_bry);	// NOTE: must copy to return different instances to callers; else callers may hash same instance with different values
-	}
-	public String Hash_stream_as_str(Console_adp console, IoStream stream) {return String_.new_a7(Hash_stream_as_bry(console, stream));} 
-	public byte[] Hash_stream_as_bry(Console_adp console, IoStream stream) {
-		if (tmp_bfr == null) tmp_bfr = new byte[4096];
-		Hash_algo_utl_.Hash_stream(console, stream, md, tmp_bfr, tmp_bfr_len, trg_bry);
-		return trg_bry;
-	}
-	public byte[] Hash_stream_as_bry(Gfo_prog_ui prog_ui, IoStream stream) {
-		if (tmp_bfr == null) tmp_bfr = new byte[4096];
-		Hash_algo_utl_.Hash_stream(prog_ui, stream, md, tmp_bfr, tmp_bfr_len, trg_bry);
-		return trg_bry;		
-	}
-	protected static MessageDigest Get_message_digest(String key) {
-		try {return MessageDigest.getInstance(key);}
-		catch (NoSuchAlgorithmException e) {throw Err_.new_missing_key(key);}		
-	}
-}
-class Hash_algo__md5 extends Hash_algo_base {
-	public Hash_algo__md5() {super(Get_message_digest_instance(), 32);}
-	public String Key() {return KEY;} public static final String KEY = "md5";
-	
-	private static MessageDigest Get_message_digest_instance() {
-		if (md__md5 == null)
-			md__md5 = Get_message_digest(KEY);
-		return md__md5;
-	}	private static MessageDigest md__md5;
-} 
-class Hash_algo__sha1 extends Hash_algo_base {
-	public Hash_algo__sha1() {super(Get_message_digest_instance(), 40);}
-	public String Key() {return KEY;} public static final String KEY = "sha1";
-
-	private static MessageDigest Get_message_digest_instance() {
-		if (md__sha1 == null)
-			md__sha1 = Get_message_digest(KEY);
-		return md__sha1;
-	}	private static MessageDigest md__sha1;
-}
-class Hash_algo__sha2_256 extends Hash_algo_base {
-	public Hash_algo__sha2_256() {super(Get_message_digest_instance(), 64);}
-	public String Key() {return KEY;} public static final String KEY = "sha-256";
-
-	private static MessageDigest Get_message_digest_instance() {
-		if (md__sha2_256 == null)
-			md__sha2_256 = Get_message_digest(KEY);
-		return md__sha2_256;
-	}	private static MessageDigest md__sha2_256;
-}
-class Hash_algo_utl_ {
-	public static void Hash_bry(MessageDigest md, byte[] src_bry, int src_len, byte[] trg_bry) {
-		int pos = 0;
-		while (true) {
-			if (pos == src_len) break;
-			int len = 4096;
-			if (pos + len > src_len) { 
-				len = src_len - pos;
-			}
-			md.update(src_bry, pos, len);
-			pos += len;
-		}
-		byte[] md_bry = md.digest();
-		gplx.core.encoders.Hex_utl_.Encode_bry(md_bry, trg_bry);
-	}
-	public static void Hash_stream(Console_adp dialog, IoStream stream, MessageDigest md, byte[] tmp_bfr, int tmp_bfr_len, byte[] trg_bry) {
-//		long pos = 0, len = stream.Len();						// pos and len must be long, else will not hash files > 2 GB
-		while (true) {
-			int read = stream.Read(tmp_bfr, 0, tmp_bfr_len);	// read stream into tmp_bfr
-			if (read < 1) break;
-			md.update(tmp_bfr, 0, read);
-//			pos += read;
-		}	
-		byte[] md_bry = md.digest();
-		gplx.core.encoders.Hex_utl_.Encode_bry(md_bry , trg_bry);
-	}
-	public static void Hash_stream(Gfo_prog_ui prog_ui, IoStream stream, MessageDigest md, byte[] tmp_bfr, int tmp_bfr_len, byte[] trg_bry) {
-		long pos = prog_ui.Prog_data_cur(), len = prog_ui.Prog_data_end();					// pos and len must be long, else will not hash files > 2 GB
-		try {
-			while (true) {
-				int read = stream.Read(tmp_bfr, 0, tmp_bfr_len);	// read stream into tmp_bfr
-				if (read < 1) break;
-				md.update(tmp_bfr, 0, read);
-				if (prog_ui.Prog_notify_and_chk_if_suspended(pos, len)) return;
-				pos += read;
-			}
-		}
-		finally {stream.Rls();}
-		byte[] md_bry = md.digest();
-		gplx.core.encoders.Hex_utl_.Encode_bry(md_bry , trg_bry);
-	}
-	public static String To_base_32_str(byte[] ary) {return Base32Converter.Encode(ary);}
-}

100_core/src/gplx/core/security/Security_utl_.java

@@ -0,0 +1,66 @@
+/*
+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.core.security; import gplx.*; import gplx.core.*;
+import java.security.MessageDigest;
+import java.security.Provider;
+import java.security.Security;
+import java.security.Provider.Service;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+public class Security_utl_ {
+    private static final void List_algos(Provider prov, Class<?> typeClass) {
+        String type = typeClass.getSimpleName();
+
+        List<Service> algos = new ArrayList<Service>();
+
+        Set<Service> services = prov.getServices();
+        for (Service service : services) {
+            if (service.getType().equalsIgnoreCase(type)) {
+                algos.add(service);
+            }
+        }
+
+        if (!algos.isEmpty()) {
+            System.out.printf(" --- Provider %s, version %.2f --- %n", prov.getName(), prov.getVersion());
+            for (Service service : algos) {
+                String algo = service.getAlgorithm();
+                System.out.printf("Algorithm name: \"%s\"%n", algo);
+
+
+            }
+        }
+
+        // --- find aliases (inefficiently)
+        Set<Object> keys = prov.keySet();
+        for (Object key : keys) {
+            final String prefix = "Alg.Alias." + type + ".";
+            if (key.toString().startsWith(prefix)) {
+                String value = prov.get(key.toString()).toString();
+                System.out.printf("Alias: \"%s\" -> \"%s\"%n",
+                        key.toString().substring(prefix.length()),
+                        value);
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        Provider[] providers = Security.getProviders();
+        for (Provider provider : providers) {
+        	List_algos(provider, MessageDigest.class);
+        }
+    }
+}

100_core/src/gplx/core/security/algos/Hash_algo.java

@@ -13,11 +13,10 @@ 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.core.security; import gplx.*; import gplx.core.*;
-public interface Hash_algo {
+package gplx.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+public interface Hash_algo {// THREAD.UNSAFE
 	String Key();
-	byte[] Hash_bry_as_bry(byte[] src);
-	String Hash_bry_as_str(byte[] src);
-	String Hash_stream_as_str(gplx.core.consoles.Console_adp console, gplx.core.ios.streams.IoStream src_stream);
-	byte[] Hash_stream_as_bry(gplx.core.progs.Gfo_prog_ui prog_ui, gplx.core.ios.streams.IoStream src_stream);
+	void   Update_digest(byte[] src, int bgn, int end);
+	byte[] To_hash_bry();
+	Hash_algo Clone_hash_algo(); // factory method; note that MessageDigest's are member variables, so always create a new instance
 }

100_core/src/gplx/core/security/algos/Hash_algo_.java

@@ -0,0 +1,41 @@
+/*
+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.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+import gplx.core.consoles.*; import gplx.core.ios.streams.*; /*IoStream*/
+import gplx.core.security.algos.jre.*; import gplx.core.security.algos.gplx_crypto.*;
+public class Hash_algo_ {
+	public static Hash_algo New__md5()		{return Jre_hash_factory.Instance.New_hash_algo(Jre_hash_factory.Key__md5);}
+	public static Hash_algo New__sha1()		{return Jre_hash_factory.Instance.New_hash_algo(Jre_hash_factory.Key__sha1);}
+	public static Hash_algo New__sha2_256()	{return Jre_hash_factory.Instance.New_hash_algo(Jre_hash_factory.Key__sha2_256);}
+	public static Hash_algo New__tth_192()	{return new Hash_algo__tth_192();}
+	public static Hash_algo New_by_tid(byte tid) {
+		switch (tid) {
+			case Tid__md5:			return New__md5();
+			case Tid__sha1:			return New__sha1();
+			case Tid__sha2_256:		return New__sha2_256();
+			case Tid__tth_192:		return New__tth_192();
+			default:				throw Err_.new_unhandled_default(tid);
+		}
+	}
+	public static Hash_algo New(String key) {
+		if		(key == Jre_hash_factory.Key__md5)      return New__md5();
+		else if (key == Jre_hash_factory.Key__sha1)     return New__sha1();
+		else if (key == Jre_hash_factory.Key__sha2_256)	return New__sha2_256();
+		else if (key == Hash_algo__tth_192.KEY)         return New__tth_192();
+		else throw Err_.new_unhandled(key);
+	}
+	public static final byte Tid__md5 = 0, Tid__sha1 = 1, Tid__sha2_256 = 2, Tid__tth_192 = 3;
+}

100_core/src/gplx/core/security/algos/Hash_algo__fxt.java

@@ -0,0 +1,24 @@
+/*
+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.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+public class Hash_algo__fxt {
+	private final    Hash_algo algo;
+	public Hash_algo__fxt(Hash_algo algo) {this.algo = algo;}
+	public void Test__hash(String expd, String raw) {
+		Tfds.Eq(expd, Hash_algo_utl.Calc_hash_as_str(algo, Bry_.new_u8(raw)));
+		Tfds.Eq(expd, Hash_algo_utl.Calc_hash_w_prog_as_str(algo, gplx.core.ios.streams.IoStream_.mem_txt_(Io_url_.Empty, raw), gplx.core.consoles.Console_adp_.Noop));
+	}
+}

100_core/src/gplx/core/security/algos/Hash_algo_factory.java

@@ -0,0 +1,19 @@
+/*
+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.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+public interface Hash_algo_factory {
+	Hash_algo New_hash_algo(String key);
+}

100_core/src/gplx/core/security/algos/Hash_algo_factory__composite.java

@@ -0,0 +1,57 @@
+/*
+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.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+public class Hash_algo_factory__composite implements Hash_algo_factory {
+	private boolean dirty = true;
+	private final    Ordered_hash hash = Ordered_hash_.New();
+	private String[] algo_keys;
+	public String[] Algo_keys() {
+		if (dirty) {
+			dirty = false;
+			int len = hash.Len();
+			algo_keys = new String[len];
+			for (int i = 0; i < len; i++) {
+				algo_keys[i] = ((Hash_algo)hash.Get_at(i)).Key();
+			}
+		}
+		return algo_keys;
+	}
+	public Hash_algo New_hash_algo(String key) {
+		Hash_algo rv = (Hash_algo)hash.Get_by(key);
+		if (rv == null) {
+			throw Err_.new_wo_type("hash_algo unknown; key=" + key);
+		}
+		return rv.Clone_hash_algo();
+	}
+
+	public Hash_algo_factory__composite Reg_many(Hash_algo_factory factory, String... algo_keys) {
+		dirty = true;
+		for (String algo_key : algo_keys) {
+			if (hash.Has(algo_key)) {
+				throw Err_.new_wo_type("hash_algo already registered; key=" + algo_key);
+			}
+			hash.Add(algo_key, factory.New_hash_algo(algo_key));
+		}
+		return this;
+	}
+	public Hash_algo_factory__composite Reg_one(Hash_algo_factory factory, String src_key, String trg_key) {
+		if (hash.Has(trg_key)) {
+			throw Err_.new_wo_type("hash_algo already registered; name=" + trg_key);
+		}
+		hash.Add(trg_key, factory.New_hash_algo(src_key));
+		return this;
+	}
+}

100_core/src/gplx/core/security/algos/Hash_algo_utl.java

@@ -0,0 +1,59 @@
+/*
+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.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+import gplx.core.consoles.*; import gplx.core.progs.*; import gplx.core.ios.streams.*;
+import gplx.core.encoders.*;
+public class Hash_algo_utl {
+	public static String Calc_hash_as_str(Hash_algo algo, byte[] bry) {return String_.new_u8(Calc_hash_as_bry(algo, bry));}
+	public static byte[] Calc_hash_as_bry(Hash_algo algo, byte[] bry) {
+		if (Type_.Is_assignable_from_by_obj(algo, Hash_algo_w_prog.class)) {
+			Hash_algo_w_prog algo_w_prog = (Hash_algo_w_prog)algo;
+			return Bry_.new_u8(algo_w_prog.Calc_hash_w_prog_as_str(IoStream_.ary_(bry), Console_adp_.Noop));
+		}
+
+		algo.Update_digest(bry, 0, bry.length);
+		return algo.To_hash_bry();
+	}
+	public static String Calc_hash_w_prog_as_str(Hash_algo algo, IoStream stream, Console_adp console) {return String_.new_u8(Calc_hash_w_prog_as_bry(algo, stream, console));}
+	public static byte[] Calc_hash_w_prog_as_bry(Hash_algo algo, IoStream stream, Console_adp console) {
+		if (Type_.Is_assignable_from_by_obj(algo, Hash_algo_w_prog.class)) {
+			Hash_algo_w_prog algo_w_prog = (Hash_algo_w_prog)algo;
+			return Bry_.new_u8(algo_w_prog.Calc_hash_w_prog_as_str(stream, console));
+		}
+		return Calc_hash_w_prog_as_bry(algo, stream, Gfo_prog_ui_.Noop);
+	}
+	public static byte[] Calc_hash_w_prog_as_bry(Hash_algo algo, IoStream stream, Gfo_prog_ui prog_ui) {
+		int tmp_bry_len = 4096;
+		byte[] tmp_bry = new byte[4096];
+
+		// pos and len must be long, else will not hash files > 2 GB
+		long pos = prog_ui.Prog_data_cur();
+		long len = prog_ui.Prog_data_end();
+
+		try {
+			while (true) {
+				int read = stream.Read(tmp_bry, 0, tmp_bry_len);	// read stream into tmp_bry
+				if (read < 1) break;
+				algo.Update_digest(tmp_bry, 0, read);
+				if (prog_ui.Prog_notify_and_chk_if_suspended(pos, len)) return null;
+				pos += read;
+			}
+		}
+		finally {stream.Rls();}
+		byte[] rv = algo.To_hash_bry();
+		return rv;
+	}
+}

100_core/src/gplx/core/security/algos/Hash_algo_w_prog.java

@@ -0,0 +1,20 @@
+/*
+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.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+import gplx.core.consoles.*; import gplx.core.ios.streams.*;
+public interface Hash_algo_w_prog {
+	String Calc_hash_w_prog_as_str(IoStream stream, Console_adp console);
+}

100_core/src/gplx/core/security/algos/gplx_crypto/Hash_algo__tth_192.java

@@ -13,16 +13,16 @@ 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.core.security; import gplx.*; import gplx.core.*;
+package gplx.core.security.algos.gplx_crypto; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
 import gplx.core.consoles.*; import gplx.core.ios.streams.*; /*IoStream*/
 import gplx.core.progs.*;
-public class Hash_algo__tth_192 implements Hash_algo {
+public class Hash_algo__tth_192 implements Hash_algo, Hash_algo_w_prog {
 	public String Key() {return KEY;} public static final    String KEY = "tth192";
+	public Hash_algo Clone_hash_algo() {return new Hash_algo__tth_192();}
 	public int BlockSize() {return blockSize;} public void BlockSize_set(int v) {blockSize = v;} int blockSize = 1024;
-	public String Hash_bry_as_str(byte[] src) {return String_.new_a7(Hash_bry_as_bry(src));}
-	public byte[] Hash_bry_as_bry(byte[] v) {return Bry_.new_a7(Hash_stream_as_str(Console_adp_.Noop, gplx.core.ios.streams.IoStream_.ary_(v)));}
-	public byte[] Hash_stream_as_bry(Gfo_prog_ui prog_ui, IoStream stream) {return Bry_.new_a7(Hash_stream_as_str(Console_adp_.Noop, stream));}
-	public String Hash_stream_as_str(Console_adp dialog, IoStream stream) {
+	public void Update_digest(byte[] src, int bgn, int end) {throw Err_.new_unimplemented();}
+	public byte[] To_hash_bry() {throw Err_.new_unimplemented();}
+	public String Calc_hash_w_prog_as_str(IoStream stream, Console_adp dialog) {
 		int leafCount = (int)(stream.Len() / blockSize);
 		HashDlgWtr dialogWtr = HashDlgWtr_.Current;
 		dialogWtr.Bgn(dialog, stream.Url(), CalcWorkUnits(stream.Len()));
@@ -35,7 +35,7 @@ public class Hash_algo__tth_192 implements Hash_algo {
 		hashMainCount = 0;
 		HashAllBytes(dialogWtr, stream, leafCount);
 		byte[] rv = HashAllHashes(dialogWtr);
-		return Hash_algo_utl_.To_base_32_str(rv);
+		return gplx.core.texts.Base32Converter.Encode(rv);
 	}
 	byte[] CalcHash_next(IoStream stream) {
 		if (blockA == null || blockA.length != blockSize) blockA = new byte[blockSize];

100_core/src/gplx/core/security/algos/gplx_crypto/Hash_algo__tth_192__tst.java

@@ -13,7 +13,7 @@ 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.core.security; import gplx.*; import gplx.core.*;
+package gplx.core.security.algos.gplx_crypto; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
 import org.junit.*; import gplx.core.consoles.*; import gplx.core.ios.*; /*IoStream*/
 public class Hash_algo__tth_192__tst {	// REF: http://open-content.net/specs/draft-jchapweske-thex-02.html; DC++ 0.698
 	private final    Hash_algo__fxt fxt = new Hash_algo__fxt(Hash_algo_.New__tth_192());

100_core/src/gplx/core/security/algos/gplx_crypto/Hash_algo__tth_192_tree_tst.java

@@ -13,7 +13,7 @@ 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.core.security; import gplx.*; import gplx.core.*;
+package gplx.core.security.algos.gplx_crypto; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
 import org.junit.*;
 public class Hash_algo__tth_192_tree_tst {
 	@Test  public void CalcRecursiveHalves() {

100_core/src/gplx/core/security/algos/gplx_crypto/Hash_console_wtr_tst.java

@@ -13,27 +13,33 @@ 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.core.security; import gplx.*; import gplx.core.*;
+package gplx.core.security.algos.gplx_crypto; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
 import org.junit.*; import gplx.core.consoles.*; import gplx.core.ios.streams.*; /*IoStream*/
 public class Hash_console_wtr_tst {
-	@Before public void setup() {
-		Hash_algo__tth_192 algo = new Hash_algo__tth_192();
-		algo.BlockSize_set(10);
-		calc = algo;
-	}
+	private final    Hash_console_wtr_fxt fxt = new Hash_console_wtr_fxt();
 	@Test  public void Basic() {
-		tst_Status(10, stringAry_(" - hash: 100%"));
-		tst_Status(11, stringAry_(" - hash: 66%"));
-		tst_Status(30, stringAry_(" - hash: 40%", " - hash: 60%", " - hash: 100%"));
+		fxt.Test__Status(10, " - hash: 100%");
+		fxt.Test__Status(11, " - hash: 66%");
+		fxt.Test__Status(30, " - hash: 40%", " - hash: 60%", " - hash: 100%");
 	}
-	void tst_Status(int count, String[] expdWritten) {
-		Console_adp__mem dialog = Console_adp_.Dev();
+}
+class Hash_console_wtr_fxt {
+	private Hash_algo__tth_192 algo;
+	public Hash_console_wtr_fxt() {
+		this.algo = new Hash_algo__tth_192();
+		algo.BlockSize_set(10);
+	}
+	public void Test__Status(int count, String... expd) {
+		// init
+		Console_adp__mem console = Console_adp_.Dev();
+
+		// exec
 		String data = String_.Repeat("A", count);
 		IoStream stream = IoStream_.mem_txt_(Io_url_.Empty, data);
-		calc.Hash_stream_as_str(dialog, stream);
-		String[] actlWritten = dialog.Written().To_str_ary();
-		Tfds.Eq_ary(actlWritten, expdWritten);
+		algo.Calc_hash_w_prog_as_str(stream, console);
+
+		// test
+		String[] actl = console.Written().To_str_ary();
+		Tfds.Eq_ary(actl, expd);
 	}
-	String[] stringAry_(String... ary) {return ary;}
-	Hash_algo calc;
 }

100_core/src/gplx/core/security/algos/jre/Jre_checksum_algo.java

@@ -0,0 +1,34 @@
+/*
+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.core.security.algos.jre; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
+import java.util.zip.Checksum;
+public class Jre_checksum_algo implements Hash_algo {
+	private final Jre_checksum_factory factory;
+	private final Checksum checksum;
+	public Jre_checksum_algo(Jre_checksum_factory factory, String key) {
+		this.factory = factory;
+		this.key = key;
+		this.checksum = factory.New_Checksum(key);
+	}
+	public String Key() {return key;} private final String key;
+	public Hash_algo Clone_hash_algo() {return new Jre_checksum_algo(factory, key);}
+	public void Update_digest(byte[] bry, int bgn, int end) {checksum.update(bry, bgn, end - bgn);}
+	public byte[] To_hash_bry() {
+		long val = checksum.getValue();
+		String rv = Long.toHexString(val);
+		return Bry_.new_u8(rv.length() < 8 ? String_.PadBgn(rv, 8, "0") : rv);
+	}
+}

100_core/src/gplx/core/security/algos/jre/Jre_checksum_factory.java

@@ -0,0 +1,35 @@
+/*
+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.core.security.algos.jre; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
+import java.util.zip.CRC32;
+import java.util.zip.Checksum;
+import java.util.zip.Adler32;
+public class Jre_checksum_factory implements Hash_algo_factory {
+	public Hash_algo New_hash_algo(String key) {
+		return new Jre_checksum_algo(this, key);
+	}
+
+	public Checksum New_Checksum(String key) {
+		if      (String_.Eq(key, Key__adler32))  return new Adler32();
+		else if (String_.Eq(key, Key__crc32))    return new CRC32();
+		else throw Err_.new_unhandled(key);
+	}
+
+	public static String 
+	  Key__adler32 = "adler32", Key__crc32 = "crc32"
+	;
+        public static final    Jre_checksum_factory Instance = new Jre_checksum_factory(); Jre_checksum_factory() {}
+}

100_core/src/gplx/core/security/algos/jre/Jre_hash_algo.java

@@ -0,0 +1,33 @@
+/*
+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.core.security.algos.jre; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
+import java.security.MessageDigest;
+public class Jre_hash_algo implements Hash_algo {
+	private final Jre_hash_factory factory;
+	private final MessageDigest md;
+	public Jre_hash_algo(Jre_hash_factory factory, String key) {
+		this.factory = factory;
+		this.key = key;
+		this.md = factory.New_algo_under(key);
+	}
+	public String Key() {return key;} private final    String key;
+	public Hash_algo Clone_hash_algo() {return new Jre_hash_algo(factory, key);}
+	public void Update_digest(byte[] bry, int bgn, int end) {md.update(bry, bgn, end - bgn);}
+	public byte[] To_hash_bry() {
+		byte[] md_bry = md.digest();
+		return gplx.core.encoders.Hex_utl_.Encode_bry(md_bry);
+	}
+}

100_core/src/gplx/core/security/algos/jre/Jre_hash_algo__md5__tst.java

@@ -13,9 +13,9 @@ 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.core.security; import gplx.*; import gplx.core.*;
+package gplx.core.security.algos.jre; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
 import org.junit.*;
-public class Hash_algo__md5__tst {	// REF: https://www.cosic.esat.kuleuven.be/nessie/testvectors/hash/md5/Md5-128.unverified.test-vectors
+public class Jre_hash_algo__md5__tst {	// REF: https://www.cosic.esat.kuleuven.be/nessie/testvectors/hash/md5/Md5-128.unverified.test-vectors
 	private final    Hash_algo__fxt fxt = new Hash_algo__fxt(Hash_algo_.New__md5());
 	@Test  public void Empty()				{fxt.Test__hash("d41d8cd98f00b204e9800998ecf8427e", "");}
 	@Test  public void a()					{fxt.Test__hash("0cc175b9c0f1b6a831c399e269772661", "a");}
@@ -29,11 +29,3 @@ public class Hash_algo__md5__tst {	// REF: https://www.cosic.esat.kuleuven.be/ne
 	//@Test  
 	public void A__x_1million()				{fxt.Test__hash("7707d6ae4e027c70eea2a935c2296f21", String_.Repeat("a", 1000000));}
 }
-class Hash_algo__fxt {
-	private final    Hash_algo algo;
-	public Hash_algo__fxt(Hash_algo algo) {this.algo = algo;}
-	public void Test__hash(String expd, String raw) {
-		Tfds.Eq(expd, algo.Hash_bry_as_str(Bry_.new_u8(raw)));
-		Tfds.Eq(expd, algo.Hash_stream_as_str(gplx.core.consoles.Console_adp_.Noop, gplx.core.ios.streams.IoStream_.mem_txt_(Io_url_.Empty, raw)));
-	}
-}

100_core/src/gplx/core/security/algos/jre/Jre_hash_algo__sha1__tst.java

@@ -13,9 +13,9 @@ 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.core.security; import gplx.*; import gplx.core.*;
+package gplx.core.security.algos.jre; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
 import org.junit.*;
-public class Hash_algo__sha1__tst {	// REF: https://www.cosic.esat.kuleuven.be/nessie/testvectors/
+public class Jre_hash_algo__sha1__tst {	// REF: https://www.cosic.esat.kuleuven.be/nessie/testvectors/
 	private final    Hash_algo__fxt fxt = new Hash_algo__fxt(Hash_algo_.New__sha1());
 	@Test  public void Empty()				{fxt.Test__hash("da39a3ee5e6b4b0d3255bfef95601890afd80709", "");}
 	@Test  public void a()					{fxt.Test__hash("86f7e437faa5a7fce15d1ddcb9eaeaea377667b8", "a");}

100_core/src/gplx/core/security/algos/jre/Jre_hash_algo__sha2_256__tst.java

@@ -13,9 +13,9 @@ 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.core.security; import gplx.*; import gplx.core.*;
+package gplx.core.security.algos.jre; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
 import org.junit.*;
-public class Hash_algo__sha2_256__tst {	// REF: https://www.cosic.esat.kuleuven.be/nessie/testvectors/
+public class Jre_hash_algo__sha2_256__tst {	// REF: https://www.cosic.esat.kuleuven.be/nessie/testvectors/
 	private final    Hash_algo__fxt fxt = new Hash_algo__fxt(Hash_algo_.New__sha2_256());
 	@Test  public void Empty()				{fxt.Test__hash("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "");}
 	@Test  public void a()					{fxt.Test__hash("ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb", "a");}

100_core/src/gplx/core/security/algos/jre/Jre_hash_factory.java

@@ -0,0 +1,33 @@
+/*
+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.core.security.algos.jre; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+public class Jre_hash_factory implements Hash_algo_factory {
+	public Hash_algo New_hash_algo(String key) {
+		return new Jre_hash_algo(this, key);
+	}
+
+	public MessageDigest New_algo_under(String key) {
+		try {return MessageDigest.getInstance(key);}
+		catch (NoSuchAlgorithmException e) {throw Err_.new_missing_key(key);}
+	}
+
+	public static String
+	  Key__md5 = "md5", Key__sha1 = "sha1", Key__sha2_256 = "sha-256"
+	;
+	public static final    Jre_hash_factory Instance = new Jre_hash_factory(); Jre_hash_factory() {}
+}

100_core/src/gplx/core/strings/String_bldr.java

@@ -37,7 +37,9 @@ public interface String_bldr {
 	String_bldr Add(char c);
 	String_bldr Add(int i);
 	String_bldr Add_obj(Object o);
-	String_bldr Add_mid(char[] ary, int bgn, int count);
+	String_bldr Add_mid(String str, int bgn, int end);
+	String_bldr Add_mid_len(char[] ary, int bgn, int count);
+	String_bldr Add_mid_len(String str, int bgn, int count);
 	String_bldr Add_at(int idx, String s);
 	String_bldr Del(int bgn, int len);
 }
@@ -82,7 +84,9 @@ abstract class String_bldr_base implements String_bldr {
 	public abstract String_bldr Add(String s);
 	public abstract String_bldr Add(char c);
 	public abstract String_bldr Add(int i);
-	public abstract String_bldr Add_mid(char[] ary, int bgn, int count);
+	public abstract String_bldr Add_mid(String str, int bgn, int end);
+	public abstract String_bldr Add_mid_len(char[] ary, int bgn, int count);
+	public abstract String_bldr Add_mid_len(String str, int bgn, int count);
 	public abstract String_bldr Add_obj(Object o);
 	public abstract String_bldr Del(int bgn, int len);
 }
@@ -95,7 +99,9 @@ class String_bldr_thread_single extends String_bldr_base {
 	@Override public String_bldr Add(String s) {sb.append(s); return this;}						
 	@Override public String_bldr Add(char c) {sb.append(c); return this;}						
 	@Override public String_bldr Add(int i) {sb.append(i); return this;}							
-	@Override public String_bldr Add_mid(char[] ary, int bgn, int count) {sb.append(ary, bgn, count); return this;}
+	@Override public String_bldr Add_mid(String str, int bgn, int end) {sb.append(str, bgn, end); return this;}
+	@Override public String_bldr Add_mid_len(char[] ary, int bgn, int count) {sb.append(ary, bgn, count); return this;}
+	@Override public String_bldr Add_mid_len(String str, int bgn, int count) {sb.append(str, bgn, count); return this;}
 	@Override public String_bldr Add_obj(Object o) {sb.append(o); return this;}					
 	@Override public String_bldr Del(int bgn, int len) {sb.delete(bgn, len); return this;}		
 }
@@ -108,7 +114,9 @@ class String_bldr_thread_multiple extends String_bldr_base {
 	@Override public String_bldr Add(String s) {sb.append(s); return this;}						
 	@Override public String_bldr Add(char c) {sb.append(c); return this;}						
 	@Override public String_bldr Add(int i) {sb.append(i); return this;}							
-	@Override public String_bldr Add_mid(char[] ary, int bgn, int count) {sb.append(ary, bgn, count); return this;}
+	@Override public String_bldr Add_mid(String str, int bgn, int end) {sb.append(str, bgn, end); return this;}
+	@Override public String_bldr Add_mid_len(char[] ary, int bgn, int count) {sb.append(ary, bgn, count); return this;}
+	@Override public String_bldr Add_mid_len(String str, int bgn, int count) {sb.append(str, bgn, count); return this;}
 	@Override public String_bldr Add_obj(Object o) {sb.append(o); return this;}					
 	@Override public String_bldr Del(int bgn, int len) {sb.delete(bgn, len); return this;}		
 }

100_core/src/gplx/core/tests/GfoTestMethod.java

@@ -0,0 +1,17 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.core.tests;
+public @interface GfoTestMethod {}

100_core/src/gplx/core/tests/Gfo_test_err_mgr.java

@@ -0,0 +1,54 @@
+/*
+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.core.tests; import gplx.*; import gplx.core.*;
+public class Gfo_test_err_mgr {
+	private final    List_adp expd = List_adp_.New();
+	public void Init() {
+		Gfo_usr_dlg_.Test__list__init();
+		expd.Clear();
+	}
+	public void Term() {
+		Gfo_usr_dlg_.Instance = Gfo_usr_dlg_.Noop;
+	}
+	public void Add_expd(boolean contains, String msg) {
+		Object[] itm = new Object[] {contains, msg};
+		expd.Add(itm);
+	}
+	public void Test() {
+		List_adp actl = ((Gfo_usr_dlg__gui_mock)Gfo_usr_dlg_.Instance.Gui_wkr()).Warns();
+		int expd_len = expd.Len();
+		int actl_len = actl.Len();
+		if (expd_len == 0 && actl_len == 0) {}
+		else if (actl_len == 0) {
+			Gftest.Fail("expected some errors; got zero; expd={0}", expd.To_str());
+		}
+		else if (expd_len == 0) {
+			Gftest.Fail("expected zero errors; got some; actl={0}", actl.To_str());
+		}
+		else {
+			for (int i = 0; i < actl_len; i++) {
+				String actl_err = (String)actl.Get_at(i);
+				Object[] expd_err_ary = (Object[])expd.Get_at(i);
+				if (Bool_.Cast(expd_err_ary[0])) {
+					Gftest.Eq__bool(true, String_.Has(actl_err, (String)expd_err_ary[1]));
+				}
+				else {
+					Gftest.Eq__str((String)expd_err_ary[1], (String)actl_err);
+				}
+			}
+		}
+	}
+}

100_core/src/gplx/core/tests/Gfo_test_itm.java

@@ -0,0 +1,104 @@
+/*
+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.core.tests; import gplx.*; import gplx.core.*;
+import gplx.core.strings.*;
+public class Gfo_test_itm {
+	private final    boolean is_expd;
+	private final    Ordered_hash hash = Ordered_hash_.New();
+	Gfo_test_itm(boolean is_expd) {
+		this.is_expd = is_expd;
+	}
+	public int Len() {return hash.Len();}
+	public Gfo_test_itm Add(String key, Object val) {hash.Add(key, Keyval_.new_(key, val)); return this;}
+	private Object Get_by_val(String key) {return ((Keyval)hash.Get_by_or_fail(key)).Val();}
+	public String Get_str(String key) {
+		Object val_obj = Get_by_val(key);
+		if (Type_.Eq_by_obj(val_obj, byte[].class)) {
+			return String_.new_u8((byte[])val_obj);
+		}
+		else
+			return (String)val_obj;
+	}
+	public void Test_bool(String key, boolean val) {
+		boolean cur = Bool_.Cast(Get_by_val(key));
+		boolean expd = is_expd ? cur : val;
+		boolean actl = is_expd ? val : cur;
+		Gftest.Eq__bool(expd, actl);
+	}
+	public void Test_bry(String key, byte[] val) {
+		byte[] cur = (byte[])Get_by_val(key);
+		byte[] expd = is_expd ? cur : val;
+		byte[] actl = is_expd ? val : cur;
+		Gftest.Eq__bry(expd, actl);
+	}
+	public void Test_long(String key, long val) {
+		long cur = Long_.cast(Get_by_val(key));
+		long expd = is_expd ? cur : val;
+		long actl = is_expd ? val : cur;
+		Gftest.Eq__long(expd, actl);
+	}
+	public void Test_int(String key, int val) {
+		int cur = Int_.Cast(Get_by_val(key));
+		int expd = is_expd ? cur : val;
+		int actl = is_expd ? val : cur;
+		Gftest.Eq__int(expd, actl);
+	}
+	public void Test_byte(String key, byte val) {
+		byte cur = Byte_.Cast(Get_by_val(key));
+		byte expd = is_expd ? cur : val;
+		byte actl = is_expd ? val : cur;
+		Gftest.Eq__byte(expd, actl);
+	}
+	public void Test_str(String key, String val) {
+		String cur = String_.cast(Get_by_val(key));
+		String expd = is_expd ? cur : val;
+		String actl = is_expd ? val : cur;
+		Gftest.Eq__str(expd, actl);
+	}
+	public void Test_actl(Gfo_test_itm actl) {
+		int expd_len = hash.Len();
+		String[] expd_ary = new String[expd_len];
+		String[] actl_ary = new String[expd_len];
+		for (int i = 0; i < expd_len; i++) {
+			Keyval expd_kv = (Keyval)hash.Get_at(i);
+			String key = expd_kv.Key();
+			expd_ary[i] = Object_.Xto_str_strict_or_null(expd_kv.Val());
+
+			Keyval actl_kv = (Keyval)actl.hash.Get_by(key);
+			actl_ary[i] = actl_kv == null ? "MISSING" : Object_.Xto_str_strict_or_null(actl_kv.Val());
+		}
+		Gftest.Eq__ary(expd_ary, actl_ary);
+	}
+	public String To_str(boolean single_line) {
+		String_bldr bldr = String_bldr_.new_();
+		int len = hash.Len();
+		String itm_dlm = single_line ? ";" : "\n";
+		for (int i = 0; i < len; i++) {
+			Object itm = hash.Get_at(i);
+			int itm_tid = Type_ids_.To_id_by_obj(itm);
+			if (itm_tid == Type_ids_.Id__bry)
+				itm = String_.new_u8((byte[])itm);
+			bldr.Add_obj(itm);
+			bldr.Add(itm_dlm);
+		}
+		return bldr.To_str();
+	}
+	@Override public String toString() {
+		return this.To_str(true);
+	}
+	public static Gfo_test_itm New__actl() {return new Gfo_test_itm(false);}
+	public static Gfo_test_itm New__expd() {return new Gfo_test_itm(true);}
+}

100_core/src/gplx/core/tests/Gfo_test_list_base.java

@@ -0,0 +1,41 @@
+/*
+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.core.tests; import gplx.*; import gplx.core.*;
+import gplx.core.strings.*;
+public class Gfo_test_list_base {
+	private final    List_adp expd = List_adp_.New();
+	public void Clear() {expd.Clear();}
+	public void Add(Object itm) {expd.Add(itm);}
+	public void Test(Object actl_obj) {
+		int len = expd.Len();
+		if (len == 0) { // nothing expd; return "pass"
+			return;
+		}
+
+		String actl = Type_.Is_assignable_from_by_obj(actl_obj, List_adp.class) ? To_str((List_adp)actl_obj) : actl_obj.toString();
+		Gftest.Eq__ary__lines(To_str(expd), actl );
+	}
+	private static String To_str(List_adp list) {
+		String_bldr sb = String_bldr_.new_();
+		int len = list.Len();
+		for (int i = 0; i < len; i++) {
+			Object obj = list.Get_at(i);
+			String str = Object_.Xto_str_strict_or_null_mark(obj);
+			sb.Add(str).Add_char_nl();
+		}
+		return sb.To_str_and_clear();
+	}
+}

100_core/src/gplx/core/tests/Gfo_test_lnr_base.java

@@ -0,0 +1,69 @@
+/*
+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.core.tests; import gplx.*; import gplx.core.*;
+import gplx.core.strings.*;
+public class Gfo_test_lnr_base {
+	private String[] keys;
+	public List_adp Expd() {return expd_list;} private final    List_adp expd_list = List_adp_.New();
+	public List_adp Actl() {return actl_list;} private final    List_adp actl_list = List_adp_.New();
+	public void Clear() {
+		expd_list.Clear();
+		actl_list.Clear();
+	}
+	public void Add_actl_args(Object... vals) {
+		int len = vals.length;
+		Gfo_test_itm itm = Gfo_test_itm.New__actl();
+		for (int i = 0; i < len; i++) {
+			itm.Add(keys[i], vals[i]);
+		}
+		actl_list.Add(itm);
+	}
+	public void Test() {Test(null);}
+	public void Test(Gfo_test_lnr_itm_cbk cbk) {
+		int expd_len = expd_list.Len();
+		int actl_len = actl_list.Len();
+		if (expd_len == 0 && actl_len == 0) {}
+		else if (actl_len == 0) {
+			Gftest.Fail("expected some itms; got zero; expd={0}", expd_list.To_str());
+		}
+		else if (expd_len == 0) {
+			Gftest.Fail("expected zero itms; got some; actl={0}", actl_list.To_str());
+		}
+		else {
+			for (int i = 0; i < actl_len; i++) {
+				Gfo_test_itm expd_itm = (Gfo_test_itm)expd_list.Get_at(i);
+				Gfo_test_itm actl_itm = (Gfo_test_itm)actl_list.Get_at(i);
+				expd_itm.Test_actl(actl_itm);
+				if (cbk != null)
+					cbk.Test_itm(i, expd_len, expd_itm, actl_itm);
+			}
+		}
+	}
+	public String To_str() {
+		String_bldr sb = String_bldr_.new_();
+		int len = actl_list.Len();
+		for (int i = 0; i < len; i++) {
+			Gfo_test_itm itm = (Gfo_test_itm)actl_list.Get_at(i);
+			sb.Add(itm.To_str(true)).Add_char_nl();
+		}
+		return sb.To_str_and_clear();
+	}
+	public static Gfo_test_lnr_base New__keys(String... keys) {
+		Gfo_test_lnr_base rv = new Gfo_test_lnr_base();
+		rv.keys = keys;
+		return rv;
+	}
+}

100_core/src/gplx/core/tests/Gfo_test_lnr_itm_cbk.java

@@ -0,0 +1,19 @@
+/*
+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.core.tests; import gplx.*; import gplx.core.*;
+public interface Gfo_test_lnr_itm_cbk {
+	void Test_itm(int i, int len, Gfo_test_itm expd_itm, Gfo_test_itm actl_itm);
+}

100_core/src/gplx/core/tests/Gftest.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -17,6 +17,9 @@ package gplx.core.tests; import gplx.*; import gplx.core.*;
 import gplx.core.brys.*;
 public class Gftest {
 	private static final    Bry_bfr bfr = Bry_bfr_.New();
+	public static void Fail(String msg_fmt, Object... msg_args) {
+		throw Err_.new_wo_type(String_.Format(msg_fmt, msg_args));
+	}
 	public static void Eq__ary(Object[] expd, Object[] actl, String msg_fmt, Object... msg_args)      {Eq__array(Type_ids_.Id__obj, expd, actl, msg_fmt, msg_args);}
 	public static void Eq__ary(boolean[] expd, boolean[] actl, String msg_fmt, Object... msg_args)			{Eq__array(Type_ids_.Id__bool, expd, actl, msg_fmt, msg_args);}
 	public static void Eq__ary(int[] expd, int[] actl)                                                      {Eq__array(Type_ids_.Id__int, expd, actl, "");}
@@ -61,6 +64,7 @@ public class Gftest {
 		if (actl == null) actl = Str__null;
 		Eq__str(Object_.Xto_str_or(expd, Str__null), Object_.Xto_str_or(actl, null), Str__null);
 	}
+	public static void Eq__bry(byte[] expd, String actl) {Eq__str(String_.new_u8(expd), actl, "no_msg");}
 	public static void Eq__str(String expd, byte[] actl, String msg_fmt, Object... msg_args) {Eq__str(expd, String_.new_u8(actl), msg_fmt, msg_args);}
 	public static void Eq__str(String expd, byte[] actl) {Eq__str(expd, String_.new_u8(actl), null);}
 	public static void Eq__str(String expd, String actl) {Eq__str(expd, actl, null);}
@@ -108,6 +112,7 @@ public class Gftest {
 		bfr.Add(Bry__line_end);
 		throw Err_.new_wo_type(bfr.To_str_and_clear());
 	}
+	public static void Eq__bool_n(boolean actl)			{Eq__bool(Bool_.N, actl, null);}
 	public static void Eq__bool_y(boolean actl)			{Eq__bool(Bool_.Y, actl, null);}
 	public static void Eq__bool_y(boolean actl, String msg_fmt, Object... msg_args)	{Eq__bool(Bool_.Y, actl, msg_fmt, msg_args);}
 	public static void Eq__bool(boolean expd, boolean actl)	{Eq__bool(expd, actl, null);}

100_core/src/gplx/core/texts/Base64Converter.java

@@ -22,6 +22,11 @@ public class Base64Converter {
         for(int i=0; i< ALPHABET.length; i++){
             toInt[ALPHABET[i]]= i;
         }
+    }
+    public static char GetIndexChar(int i) {return ALPHABET[i];}
+    public static int GetIndexInt(char c) {
+    	if (toInt == null) Init();
+    	return toInt[c];
     }
 	public static String EncodeString(String orig) {return Encode(Bry_.new_u8(orig));}
 	public static String Encode(byte[] buf){

100_core/src/gplx/core/threads/Thread_adp.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -13,11 +13,20 @@ 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.core.threads; import gplx.*; import gplx.core.*;
-import java.lang.*;
+package gplx.core.threads;
+
+import gplx.Cancelable;
+import gplx.Cancelable_;
+import gplx.Err_;
+import gplx.GfoMsg;
+import gplx.GfoMsg_;
+import gplx.Gfo_invk;
+import gplx.Gfo_invk_;
+import gplx.Gfo_log_;
+
 public class Thread_adp implements Runnable {
-	private final    String thread_name; private final    Cancelable cxl; private final    boolean cxlable;
-	private final    Gfo_invk invk_itm; private final    String invk_cmd; private final    GfoMsg invk_msg;
+	private final String thread_name; private final Cancelable cxl; private final boolean cxlable;
+	private final Gfo_invk invk_itm; private final String invk_cmd; private final GfoMsg invk_msg;
 	private Thread thread;
 	@gplx.Internal protected Thread_adp(String thread_name, Cancelable cxl, Gfo_invk invk_itm, String invk_cmd, GfoMsg invk_msg) {
 		this.thread_name = thread_name; this.cxl = cxl; this.cxlable = cxl != Cancelable_.Never;
@@ -28,6 +37,7 @@ public class Thread_adp implements Runnable {
 	public boolean	Thread__cancelable()	{return cxlable;}
 	public boolean	Thread__is_alive()		{return thread == null ? false : thread.isAlive();}	
 	public void		Thread__interrupt()		{thread.interrupt();}								
+	public void		Thread__stop()          {thread.stop();}
 	public void run() {
 		try	 {
 			Gfo_invk_.Invk_by_msg(invk_itm, invk_cmd, invk_msg);
@@ -37,8 +47,8 @@ public class Thread_adp implements Runnable {
 		}
 	}
 	public void Thread__start() {
-				this.thread = (thread_name == null) ? new Thread(this) : new Thread(this, thread_name);
+		this.thread = (thread_name == null) ? new Thread(this) : new Thread(this, thread_name);
 		thread.start();
-			}
-	public static final    Thread_adp Noop = new Thread_adp(Thread_adp_.Name_null, Cancelable_.Never, Gfo_invk_.Noop, "", GfoMsg_.Null);
+	}
+	public static final Thread_adp Noop = new Thread_adp(Thread_adp_.Name_null, Cancelable_.Never, Gfo_invk_.Noop, "", GfoMsg_.Null);
 }

100_core/src/gplx/core/threads/Thread_adp_.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -13,16 +13,24 @@ 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.core.threads; import gplx.*; import gplx.core.*;
+package gplx.core.threads;
+
+import gplx.Cancelable;
+import gplx.Cancelable_;
+import gplx.Err_;
+import gplx.GfoMsg;
+import gplx.GfoMsg_;
+import gplx.Gfo_invk;
+
 public class Thread_adp_ {
 		public static void Sleep(int milliseconds) {
 		try {
 			Thread.sleep(milliseconds);
 			} catch (InterruptedException e) {
 				throw Err_.new_exc(e, "core", "thread interrupted", "milliseconds", milliseconds);
-				}
+		}
 	}
-		public static Thread_adp Start_by_key(String thread_name, Gfo_invk invk_itm, String invk_cmd)					{return Start(thread_name, Cancelable_.Never, invk_itm, invk_cmd		, GfoMsg_.new_cast_(invk_cmd));}
+	public static Thread_adp Start_by_key(String thread_name, Gfo_invk invk_itm, String invk_cmd)					{return Start(thread_name, Cancelable_.Never, invk_itm, invk_cmd		, GfoMsg_.new_cast_(invk_cmd));}
 	public static Thread_adp Start_by_val(String thread_name, Gfo_invk invk_itm, String invk_cmd, Object val)		{return Start(thread_name, Cancelable_.Never, invk_itm, invk_cmd		, GfoMsg_.new_cast_(invk_cmd).Add("v", val));}
 	public static Thread_adp Start_by_msg(String thread_name, Gfo_invk invk_itm, GfoMsg invk_msg)					{return Start(thread_name, Cancelable_.Never, invk_itm, invk_msg.Key()	, invk_msg);}
 	public static Thread_adp Start_by_key(String thread_name, Cancelable cxl, Gfo_invk invk_itm, String invk_cmd)				{return Start(thread_name, cxl, invk_itm, invk_cmd		, GfoMsg_.new_cast_(invk_cmd));}

100_core/src/gplx/core/tooling/asserts/TestAssert.java

@@ -0,0 +1,78 @@
+package gplx.core.tooling.asserts;
+
+import gplx.core.tests.Gftest;
+import gplx.core.tooling.dataCollectors.GfoDataCollectorGrp;
+import gplx.core.tooling.dataCollectors.GfoDataCollectorMgr;
+import gplx.langs.java.util.List_;
+
+import java.util.List;
+
+public interface TestAssert {
+    void Test(GfoDataCollectorGrp actlItm);
+    void NotePrepend(String s);
+    static void Test(String note, GfoDataCollectorMgr mgr, TestAssert.Grp[] itms) {
+        for (TestAssert.Grp itm : itms) {
+            itm.NotePrepend(note);
+            itm.Test(mgr.GetGrp(itm.Key()));
+        }
+    }
+    class Grp implements TestAssert {
+        private String key;
+        private TestAssert[] rules;
+        public Grp(String key, TestAssert... rules) {
+            this.key = key;
+            this.rules = rules;
+        }
+        public String Key() {return key;}
+        public void NotePrepend(String s) {
+            note = s;
+            for (TestAssert rule : rules) {
+                rule.NotePrepend(s);
+            }
+        }   private String note;
+        public void Test(GfoDataCollectorGrp grp) {
+            for (TestAssert rule : rules) {
+                rule.Test(grp);
+            }
+        }
+    }
+    class StringEq implements TestAssert {
+        private String key;
+        private String expdVal;
+        public StringEq(String key, String expd) {
+            this.key = key;
+            this.expdVal = expd;
+        }
+        public void NotePrepend(String s) {note = s + "." + key;} private String note;
+        public void Test(GfoDataCollectorGrp grp) {
+            String actlVal = (String)grp.Get(key);
+            Gftest.Eq__str(expdVal, actlVal, note);
+        }
+    }
+    class StringHas implements TestAssert {
+        private String key;
+        private String expdVal;
+        public StringHas(String key, String expd) {
+            this.key = key;
+            this.expdVal = expd;
+        }
+        public void NotePrepend(String s) {note = s + "." + key;} private String note;
+        public void Test(GfoDataCollectorGrp grp) {
+            String actlVal = (String)grp.Get(key);
+            Gftest.Eq__bool_y(actlVal.contains(expdVal), note);
+        }
+    }
+    class ListEq implements TestAssert {
+        private String key;
+        private List<?> expdList;
+        public ListEq(String key, Object... expd) {
+            this.key = key;
+            this.expdList = List_.NewByAry(expd);
+        }
+        public void NotePrepend(String s) {note = s + "." + key;} private String note;
+        public void Test(GfoDataCollectorGrp grp) {
+            List<?> actlList = (List<?>)grp.Get(key);
+            Gftest.Eq__ary(expdList.toArray(), actlList.toArray(), note);
+        }
+    }
+}

100_core/src/gplx/core/tooling/dataCollectors/GfoDataCollectorGrp.java

@@ -0,0 +1,24 @@
+package gplx.core.tooling.dataCollectors;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+
+public class GfoDataCollectorGrp {
+    private final String key;
+    private final LinkedHashMap<String, Object> hash = new LinkedHashMap<>();
+    public GfoDataCollectorGrp(String key) {
+        this.key = key;
+    }
+    public String Key() {return key;}
+    public GfoDataCollectorGrp Add(String dataKey, String dataVal) {
+        hash.put(dataKey, dataVal);
+        return this;
+    }
+    public GfoDataCollectorGrp Add(String dataKey, List<?> dataVal) {
+        hash.put(dataKey, dataVal);
+        return this;
+    }
+    public Object Get(String dataKey) {
+        return hash.get(dataKey);
+    }
+}

100_core/src/gplx/core/tooling/dataCollectors/GfoDataCollectorMgr.java

@@ -0,0 +1,13 @@
+package gplx.core.tooling.dataCollectors;
+
+import java.util.LinkedHashMap;
+
+public class GfoDataCollectorMgr {
+    private final LinkedHashMap<String, GfoDataCollectorGrp> hash = new LinkedHashMap<>();
+    public GfoDataCollectorGrp GetGrp(String grpKey) {return hash.get(grpKey);}
+    public GfoDataCollectorGrp AddGrp(String grpKey) {
+        GfoDataCollectorGrp grp = new GfoDataCollectorGrp(grpKey);
+        hash.put(grpKey, grp);
+        return grp;
+    }
+}

100_core/src/gplx/langs/java/util/List_.java

@@ -0,0 +1,13 @@
+package gplx.langs.java.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class List_ {
+    public static List<Object> NewByAry(Object[] ary) {
+        List<Object> rv = new ArrayList<>();
+        for (Object o : ary)
+            rv.add(o);
+        return rv;
+    }
+}

100_core/src/gplx/langs/regxs/Regx_adp.java

@@ -17,7 +17,10 @@ package gplx.langs.regxs; import gplx.*; import gplx.langs.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 public class Regx_adp {
-	@gplx.Internal protected Regx_adp(String regx) {Pattern_(regx);}
+	public Regx_adp(String regx, int flags) {
+		this.flags = flags;
+		Pattern_(regx);
+	}
 	public String Pattern() {return pattern;} public Regx_adp Pattern_(String val) {pattern = val; Under_sync(); return this;} private String pattern;
 	public boolean Pattern_is_invalid() {return pattern_is_invalid;} private boolean pattern_is_invalid = false;
 	public Exception Pattern_is_invalid_exception() {return pattern_is_invalid_exception;} private Exception pattern_is_invalid_exception = null;
@@ -38,14 +41,15 @@ public class Regx_adp {
 		}
 		return (Regx_match[])rv.To_ary(Regx_match.class);
 	}
-		private Pattern under;
+		private int flags = FLAG__DOTALL | FLAG__UNICODE_CHARACTER_CLASS;// JRE.7:UNICODE_CHARACTER_CLASS; added during %w fix for en.w:A#; DATE:2015-06-10
+	private Pattern under;
 	public Pattern Under() {return under;}
 	private void Under_sync() {
-		try {under = Pattern.compile(pattern, Pattern.DOTALL | Pattern.UNICODE_CHARACTER_CLASS);}	// JRE.7:UNICODE_CHARACTER_CLASS; added during %w fix for en.w:A#; DATE:2015-06-10 
+		try {under = Pattern.compile(pattern, flags);}
 		catch (Exception e) {	// NOTE: if invalid, then default to empty pattern (which should return nothing); EX:d:〆る generates [^]; DATE:2013-10-20
 			pattern_is_invalid = true;
 			pattern_is_invalid_exception = e;
-			under = Pattern.compile("", Pattern.DOTALL | Pattern.UNICODE_CHARACTER_CLASS);
+			under = Pattern.compile("", flags);
 		}
 	}
 	public Regx_match Match(String input, int bgn) {
@@ -56,11 +60,29 @@ public class Regx_adp {
 		Regx_group[] ary = Regx_group.Ary_empty;
 		int groups_len = match.groupCount();
 		if (success && groups_len > 0) {
+			// NOTE: by convention, there are n groups, but groups.count is n - 1 and groups[0] is entire match (not 1st group); see TEST: DATE:2019-12-28
+			groups_len++;
 			ary = new Regx_group[groups_len];
-			for (int i = 0; i < groups_len; i++)
-				ary[i] = new Regx_group(true, match.start(i + 1), match.end(i + 1), match.group(i + 1));				
+			for (int i = 0; i < groups_len; i++) {
+				int match_start = match.start(i);
+				ary[i] = new Regx_group(match_start != -1, match_start, match.end(i), match.group(i));
+			}
 		}
 		return new Regx_match(success, match_bgn, match_end, ary);
 	}
 	public String ReplaceAll(String input, String replace) {return under.matcher(input).replaceAll(replace);}
+	// https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html
+	public static final int
+	  FLAG__NONE                    = 0
+	, FLAG__UNIX_LINES              = Pattern.UNIX_LINES
+	, FLAG__CASE_INSENSITIVE        = Pattern.CASE_INSENSITIVE
+	, FLAG__COMMENTS                = Pattern.COMMENTS
+	, FLAG__MULTILINE               = Pattern.MULTILINE
+	, FLAG__LITERAL                 = Pattern.LITERAL
+	, FLAG__DOTALL                  = Pattern.DOTALL
+	, FLAG__UNICODE_CASE            = Pattern.UNICODE_CASE
+	, FLAG__CANON_EQ                = Pattern.CANON_EQ
+	, FLAG__UNICODE_CHARACTER_CLASS = Pattern.UNICODE_CHARACTER_CLASS
+	;
+	public static final    int FLAG__DEFAULT = FLAG__DOTALL | FLAG__UNICODE_CHARACTER_CLASS;// JRE.7:UNICODE_CHARACTER_CLASS; added during %w fix for en.w:A#; DATE:2015-06-10
 	}

100_core/src/gplx/langs/regxs/Regx_adp_.java

@@ -15,7 +15,7 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 */
 package gplx.langs.regxs; import gplx.*; import gplx.langs.*;
 public class Regx_adp_ {
-	public static Regx_adp new_(String pattern) {return new Regx_adp(pattern);}
+	public static Regx_adp new_(String pattern) {return new Regx_adp(pattern, Regx_adp.FLAG__DEFAULT);}
 	public static List_adp Find_all(String src, String pat) {
 		int src_len = String_.Len(src);
 		Regx_adp regx = Regx_adp_.new_(pat);
@@ -34,7 +34,7 @@ public class Regx_adp_ {
 		return regx.ReplaceAll(raw, replace);
 	}
 	public static boolean Match(String input, String pattern) {
-		Regx_adp rv = new Regx_adp(pattern);
+		Regx_adp rv = new Regx_adp(pattern, Regx_adp.FLAG__DEFAULT);
 		return rv.Match(input, 0).Rslt();
 	}
 }

100_core/src/gplx/langs/regxs/Regx_adp__tst.java

@@ -49,7 +49,9 @@ public class Regx_adp__tst implements TfdsEqListItmStr {
 		tst_Matches("b", "a b c b a b b", matches_(2, 6, 10, 12));	// BUGFIX: multiple entries did not work b/c of += instead of +
 	}
 	@Test  public void Groups() {
-		tst_Groups("abc def ghi dz", "(d\\p{L}+)", "def", "dz");
+		tst_Groups("abc def ghi dz", "(d\\p{L}+)", "def", "def", "dz", "dz");
+		tst_Groups("abc def", "(de)(g?)", "de", "de", ""); // NOTE: (g?) doesn't capture anything, but still add a group for it; DATE:2019-12-28
+		tst_Groups("-123.456", "^-?(([0-9]+)(?:\\.([0-9]+))?)", "-123.456", "123.456", "123", "456"); // NOTE: -123.456 captured even though it's not part of a group; DATE:2019-12-28
 	}
 	Regx_match[] matches_(int... bgnAry) {
 		int aryLen = Array_.Len(bgnAry);

100_core/src/gplx/langs/regxs/Regx_match.java

@@ -26,6 +26,7 @@ public class Regx_match {
 	public int Find_bgn() {return find_bgn;} private final    int find_bgn;
 	public int Find_end() {return find_end;} private final    int find_end;
 	public int Find_len() {return find_end - find_bgn;}
+	public String Find_str(String s) {return String_.Mid(s, find_bgn, find_end);}
 	public Regx_group[] Groups() {return groups;} private final    Regx_group[] groups;
 
 	public static final    Regx_match[] Ary_empty = new Regx_match[0];

100_core/src/gplx/langs/xmls/XmlAtrList.java

@@ -22,6 +22,11 @@ public class XmlAtrList {
 		Node xatr = list.getNamedItem(key);
 		return (xatr == null) ? or : xatr.getNodeValue();
 	}
+	public XmlAtr Get_by(String key) {
+		Node xatr = list.getNamedItem(key);
+		if (xatr == null) throw Err_.new_missing_key(key);
+		return new XmlAtr(xatr);
+	}
 	public XmlAtr Fetch(String key) {
 		Node xatr = list.getNamedItem(key); if (xatr == null) throw Err_.new_missing_key(key);
 		return new XmlAtr(xatr);

100_core/src/gplx/langs/xmls/XmlDoc_.java

@@ -29,15 +29,45 @@ import javax.xml.transform.dom.DOMSource;
 import javax.xml.transform.stream.StreamResult;
 import org.w3c.dom.Document;
 import org.w3c.dom.NodeList;
+import org.xml.sax.EntityResolver;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
 public class XmlDoc_ {
-	public static XmlDoc parse(String raw) {return new XmlDoc(doc_(raw));}
+	public static XmlNdeList Select_tags(XmlNde cur, String tag) {
+		XmlNdeList_cls_list rv = new XmlNdeList_cls_list(4); // NOTE: pass in an initial amount; do not pass 0
+		Select_tags(rv, cur, tag);
+		return rv;
+	}
+	private static void Select_tags(XmlNdeList_cls_list rv, XmlNde cur, String tag) {
+		if (String_.Eq(cur.Name(), tag)) {
+			rv.Add(cur);
+		}
+		XmlNdeList sub_ndes = cur.SubNdes();
+		int sub_ndes_len = sub_ndes.Count();
+		for (int i = 0; i < sub_ndes_len; i++) {
+			XmlNde sub_nde = sub_ndes.Get_at(i);
+			Select_tags(rv, sub_nde, tag);
+		}
+	}
+		public static XmlDoc parse(String raw) {return new XmlDoc(doc_(raw));}
 	static Document doc_(String raw) {
 		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 		DocumentBuilder bldr = null;
-		try 	{bldr = factory.newDocumentBuilder();}
-		catch 	(ParserConfigurationException e) {throw Err_.new_exc(e, "xml", "failed to create newDocumentBuilder");}
+		try {
+			// NOTE: disable DTD validation else errors for "ldmlSupplemental.dtd" in plurals.xml; DATE:2020-01-01
+			// REF:https://stackoverflow.com/questions/24744175/non-validating-documentbuilder-trying-to-read-dtd-file
+			// REF:https://stackoverflow.com/questions/6204827/xml-parsing-too-slow
+			factory.setNamespaceAware(false);
+			factory.setValidating(false);
+			factory.setFeature("http://xml.org/sax/features/namespaces", false);
+			factory.setFeature("http://xml.org/sax/features/validation", false);
+			factory.setFeature("http://apache.org/xml/features/nonvalidating/load-dtd-grammar", false);
+			factory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
+			bldr = factory.newDocumentBuilder();
+		}
+		catch (ParserConfigurationException e) {
+			throw Err_.new_exc(e, "xml", "failed to create newDocumentBuilder");
+		}
 		StringReader reader = new StringReader(raw);
 		InputSource source = new InputSource(reader);
 		Document doc = null;
@@ -47,5 +77,4 @@ public class XmlDoc_ {
 		return doc;
 	}
 	public static final String Err_XmlException = "gplx.xmls.XmlException";
-}
-//#}
+	}

110_gfml/src_100_tkn/gplx/gfml/GfmlLxr_.java

@@ -80,7 +80,7 @@ class GfmlLxr_group implements GfmlLxr {
 	public GfmlTkn MakeTkn(CharStream stream, int hookLength) {
 		while (stream.AtMid()) {
 			if (!ignoreOutput)
-				sb.Add_mid(stream.Ary(), stream.Pos(), hookLength);
+				sb.Add_mid_len(stream.Ary(), stream.Pos(), hookLength);
 			stream.MoveNextBy(hookLength);
 
 			String found = String_.cast(trie.FindMatch(stream));

140_dbs/src/gplx/dbs/Db_conn.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -13,19 +13,49 @@ 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.dbs; import gplx.*;
-import gplx.core.stores.*; import gplx.dbs.metas.*; import gplx.dbs.engines.*; import gplx.dbs.qrys.*; import gplx.dbs.sys.*; import gplx.dbs.conn_props.*; import gplx.dbs.qrys.bats.*;
+package gplx.dbs;
+
+import gplx.Bool_;
+import gplx.Double_;
+import gplx.Err_;
+import gplx.Gfo_log_;
+import gplx.Gfo_usr_dlg;
+import gplx.Gfo_usr_dlg_;
+import gplx.Int_;
+import gplx.Io_url;
+import gplx.List_adp;
+import gplx.List_adp_;
+import gplx.Rls_able;
+import gplx.String_;
+import gplx.core.stores.DataRdr;
+import gplx.core.stores.DataRdr_;
+import gplx.dbs.conn_props.Db_conn_props_mgr;
+import gplx.dbs.engines.Db_engine;
+import gplx.dbs.metas.Dbmeta_idx_fld;
+import gplx.dbs.metas.Dbmeta_tbl_mgr;
+import gplx.dbs.qrys.Db_qry__select_in_tbl;
+import gplx.dbs.qrys.Db_qry_delete;
+import gplx.dbs.qrys.Db_qry_insert;
+import gplx.dbs.qrys.Db_qry_sql;
+import gplx.dbs.qrys.Db_qry_update;
+import gplx.dbs.qrys.bats.Db_batch_mgr;
+import gplx.dbs.sys.Db_sys_mgr;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
 public class Db_conn {
 	private final    List_adp rls_list = List_adp_.New();
 	public Db_conn(Db_engine engine) {
 		this.engine = engine;
 		this.sys_mgr = new Db_sys_mgr(this);
+		this.wkrMgr = new SqlWkrMgr(this);
+		engine.CtorConn(wkrMgr);
 	}
 	public Db_conn_info			Conn_info()				{return engine.Conn_info();}
 	public Db_conn_props_mgr	Props()					{return engine.Props();}
 	public Db_batch_mgr			Batch_mgr()				{return engine.Batch_mgr();}
-	public Db_engine			Engine()				{return engine;} private final    Db_engine engine;
-	public Db_sys_mgr			Sys_mgr()				{return sys_mgr;} private final    Db_sys_mgr sys_mgr;	// autonum and other functions
+	public Db_engine			Engine()				{return engine;} private final Db_engine engine;
+	public Db_sys_mgr			Sys_mgr()				{return sys_mgr;} private final Db_sys_mgr sys_mgr;	// autonum and other functions
+	public SqlWkrMgr            WkrMgr()                {return wkrMgr;} private final SqlWkrMgr wkrMgr;
 	public boolean				Eq(Db_conn comp)		{return String_.Eq(engine.Conn_info().Db_api(), comp.Conn_info().Db_api());}
 	public void					Txn_bgn(String name)	{engine.Txn_bgn(name);}
 	public void					Txn_end()				{engine.Txn_end();}

140_dbs/src/gplx/dbs/Db_crt_.java

@@ -28,6 +28,7 @@ public class Db_crt_ {
 	public static Criteria_fld New_between		(String key, Comparable lo, Comparable hi)	{return Criteria_fld.new_(key, Criteria_.between_(lo, hi));}
 	public static Criteria_fld New_in			(String key, Object... vals)				{return Criteria_fld.new_(key, Criteria_.in_(vals));}
 	public static Criteria_fld New_like			(String key, String pattern)					{return Criteria_fld.new_(key, Criteria_.like_(pattern));}
+	public static Criteria_fld New_like_not     (String key, String pattern)                    {return Criteria_fld.new_(key, Criteria_.Not(Criteria_.like_(pattern)));}
 
 	public static Criteria eq_many_(String... ary) {
 		Criteria rv = null;

140_dbs/src/gplx/dbs/Dbmeta_fld_list.java

@@ -29,6 +29,7 @@ public class Dbmeta_fld_list {
 	public String Add_int_pkey_autonum(String name)		{return Add(Dbmeta_fld_itm.new_int(name).Primary_y_().Autonum_y_());}
 	public String Add_int_autonum(String name)			{return Add(Dbmeta_fld_itm.new_int(name).Autonum_y_());}
 	public String Add_int_dflt(String name, int dflt)	{return Add(Dbmeta_fld_itm.new_int(name).Default_(dflt));}
+	public String Add_int_null(String name)             {return Add(Dbmeta_fld_itm.new_int(name).Nullable_y_());}
 	public String Add_long(String name)					{return Add(Dbmeta_fld_itm.new_long(name));}
 	public String Add_float(String name)				{return Add(Dbmeta_fld_itm.new_float(name));}
 	public String Add_double(String name)				{return Add(Dbmeta_fld_itm.new_double(name));}

140_dbs/src/gplx/dbs/engines/Db_engine.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -13,14 +13,32 @@ 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.dbs.engines; import gplx.*; import gplx.dbs.*;
-import gplx.core.stores.*; import gplx.dbs.metas.*; import gplx.dbs.sqls.*; import gplx.dbs.conn_props.*; import gplx.dbs.qrys.bats.*;
+package gplx.dbs.engines;
+
+import gplx.Gfo_usr_dlg;
+import gplx.Io_url;
+import gplx.core.stores.DataRdr;
+import gplx.dbs.Db_conn;
+import gplx.dbs.Db_conn_info;
+import gplx.dbs.Db_qry;
+import gplx.dbs.Db_rdr;
+import gplx.dbs.Db_stmt;
+import gplx.dbs.Dbmeta_fld_itm;
+import gplx.dbs.Dbmeta_idx_itm;
+import gplx.dbs.Dbmeta_tbl_itm;
+import gplx.dbs.conn_props.Db_conn_props_mgr;
+import gplx.dbs.metas.Dbmeta_tbl_mgr;
+import gplx.dbs.qrys.bats.Db_batch_mgr;
+import gplx.dbs.sqls.Sql_qry_wtr;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
 public interface Db_engine {
 	String				Tid();
 	Db_conn_info		Conn_info();
 	Db_conn_props_mgr	Props();
 	Db_batch_mgr		Batch_mgr();
 	Sql_qry_wtr			Sql_wtr();
+	void                CtorConn(SqlWkrMgr wkrMgr);
 	Db_engine			New_clone(Db_conn_info conn_info);
 	void				Conn_open();
 	void				Conn_term();

140_dbs/src/gplx/dbs/engines/mems/Mem_engine.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -15,6 +15,8 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 */
 package gplx.dbs.engines.mems; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
 import gplx.core.stores.*; import gplx.dbs.metas.*; import gplx.dbs.sqls.*; import gplx.dbs.conn_props.*; import gplx.dbs.qrys.bats.*;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
 public class Mem_engine implements Db_engine {
 	private final    Hash_adp tbl_hash = Hash_adp_.New();
 	Mem_engine(Db_conn_info conn_info) {
@@ -27,6 +29,7 @@ public class Mem_engine implements Db_engine {
 	public Db_batch_mgr			Batch_mgr() {return batch_mgr;} private final    Db_batch_mgr batch_mgr = new Db_batch_mgr();
 	public Mem_exec_select		Qry_runner() {return qry_runner;} private Mem_exec_select qry_runner;
 	public Sql_qry_wtr			Sql_wtr() {return sql_wtr;} private final    Sql_qry_wtr sql_wtr = Sql_qry_wtr_.New__basic();
+	@Override public void       CtorConn(SqlWkrMgr wkrMgr) {}
 	public Db_engine			New_clone(Db_conn_info conn_info) {return new Mem_engine(conn_info);}
 	public Db_stmt				Stmt_by_qry(Db_qry qry) {return new Mem_stmt(this, qry);}
 	public Mem_tbl				Tbls__get(String name)	{return (Mem_tbl)tbl_hash.Get_by(name);}

140_dbs/src/gplx/dbs/engines/mysql/Mysql_engine.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -15,10 +15,13 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 */
 package gplx.dbs.engines.mysql; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
 import gplx.core.stores.*; import gplx.dbs.engines.*; import gplx.dbs.sqls.*; import gplx.dbs.metas.*;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
 import java.sql.*;
 public class Mysql_engine extends Db_engine_sql_base {
 	@Override public String Tid() {return Mysql_conn_info.Tid_const;}
 	@Override public Sql_qry_wtr	Sql_wtr() {return Sql_qry_wtr_.New__mysql();}
+	@Override public void CtorConn(SqlWkrMgr wkrMgr) {}
 	@Override public Db_engine New_clone(Db_conn_info connectInfo) {
 		Mysql_engine rv = new Mysql_engine();
 		rv.Ctor(connectInfo);

140_dbs/src/gplx/dbs/engines/noops/Noop_engine.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -15,12 +15,15 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 */
  package gplx.dbs.engines.noops; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
 import gplx.core.stores.*; import gplx.dbs.metas.*; import gplx.dbs.sqls.*; import gplx.dbs.conn_props.*; import gplx.dbs.qrys.bats.*;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
 public class Noop_engine implements Db_engine {
 	public String				Tid() {return Noop_conn_info.Tid_const;}
 	public Db_conn_info			Conn_info() {return Db_conn_info_.Null;}
 	public Db_conn_props_mgr	Props() {return props;} private final    Db_conn_props_mgr props = new Db_conn_props_mgr();
 	public Db_batch_mgr			Batch_mgr() {return batch_mgr;} private final    Db_batch_mgr batch_mgr = new Db_batch_mgr();
 	public Sql_qry_wtr			Sql_wtr() {return sql_wtr;} private final    Sql_qry_wtr sql_wtr = Sql_qry_wtr_.New__basic();
+	@Override public void       CtorConn(SqlWkrMgr wkrMgr) {}
 	public void					Conn_open() {}
 	public void					Conn_term() {}
 	public Db_engine			New_clone(Db_conn_info url) {return this;}

140_dbs/src/gplx/dbs/engines/postgres/Postgres_engine.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -15,10 +15,15 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 */
 package gplx.dbs.engines.postgres; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
 import gplx.core.stores.*; import gplx.dbs.engines.*; import gplx.dbs.sqls.*; import gplx.dbs.metas.*;
-import java.sql.*; 
+import gplx.dbs.wkrs.SqlWkrMgr;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+
 public class Postgres_engine extends Db_engine_sql_base {
 	@Override public String Tid() {return Postgres_conn_info.Tid_const;}
 	@Override public Sql_qry_wtr	Sql_wtr() {return Sql_qry_wtr_.New__mysql();}
+	@Override public void CtorConn(SqlWkrMgr wkrMgr) {}
 	@Override public Db_engine New_clone(Db_conn_info connectInfo) {
 		Postgres_engine rv = new Postgres_engine();
 		rv.Ctor(connectInfo);

140_dbs/src/gplx/dbs/engines/sqlite/Sqlite_engine.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -21,6 +21,8 @@ import gplx.core.consoles.Console_adp_;
 import gplx.core.consoles.Console_adp__sys;
 import gplx.core.ios.IoItmFil;
 
+import gplx.dbs.wkrs.SqlWkrMgr;
+import gplx.dbs.wkrs.randoms.SqliteRandomWkr;
 import org.sqlite.SQLiteConnection;
 public class Sqlite_engine extends Db_engine_sql_base {
 	private final    Sqlite_txn_mgr txn_mgr; private final    Sqlite_schema_mgr schema_mgr;
@@ -30,6 +32,10 @@ public class Sqlite_engine extends Db_engine_sql_base {
 	}
 	@Override public String Tid() {return Sqlite_conn_info.Key_const;}
 	@Override public gplx.dbs.sqls.Sql_qry_wtr Sql_wtr() {return Sql_qry_wtr_.New__sqlite();}
+	public void CtorConn(SqlWkrMgr wkrMgr) {
+		wkrMgr.Set(new SqliteRandomWkr());
+	}
+
 	@Override public Db_engine New_clone(Db_conn_info connectInfo) {
 		Sqlite_engine rv = new Sqlite_engine();
 		rv.Ctor(connectInfo);
@@ -72,7 +78,7 @@ public class Sqlite_engine extends Db_engine_sql_base {
 		// set open_mode flag if conn is read-only; needed else all SELECT queries will be very slow; DATE:2016-09-03
 		IoItmFil sqlite_fs_itm = Io_mgr.Instance.QueryFil(sqlite_fs_url);
 		boolean read_only = sqlite_fs_itm.Exists() // NOTE: must check if it exists; else missing-file will be marked as readonly connection, and missing-file will sometimes be dynamically created as read-write; DATE:2016-09-04
-			  && Io_mgr.Instance.Query_read_only(sqlite_fs_url.OwnerDir(), Sqlite_engine_.Read_only_detection);
+			  && Io_mgr.Instance.Query_read_only(sqlite_fs_url, Sqlite_engine_.Read_only_detection);
 		Keyval[] props = read_only
 			? Keyval_.Ary(Keyval_.new_("open_mode", "1"))
 			: Keyval_.Ary_empty;
@@ -89,7 +95,7 @@ public class Sqlite_engine extends Db_engine_sql_base {
 		catch (SQLException e) {Gfo_usr_dlg_.Instance.Warn_many("", "", "failed to set busy timeout; err=~{0}", Err_.Message_gplx_log(e));}
 		return rv;
 	}
-		public static final    Sqlite_engine Instance = new Sqlite_engine();
+	public static final    Sqlite_engine Instance = new Sqlite_engine();
 }
 class Db_rdr__sqlite extends Db_rdr__basic {	@Override public byte Read_byte(String k)		{try {return (byte)Int_.Cast(rdr.getObject(k));} catch (Exception e) {throw Err_.new_exc(e, "db", "read failed", "k", k, "type", Byte_.Cls_val_name);}} 
 		@Override public boolean Read_bool_by_byte(String k) {

140_dbs/src/gplx/dbs/engines/tdbs/TdbEngine.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -15,6 +15,8 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 */
 package gplx.dbs.engines.tdbs; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
 import gplx.core.stores.*; import gplx.dbs.metas.*; import gplx.dbs.conn_props.*; import gplx.dbs.qrys.*; import gplx.dbs.sqls.*; import gplx.dbs.qrys.bats.*;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
 public class TdbEngine implements Db_engine {
 	public String Tid() {return Tdb_conn_info.Tid_const;}
 	public Db_conn_info			Conn_info() {return conn_info;} private Db_conn_info conn_info;
@@ -22,6 +24,7 @@ public class TdbEngine implements Db_engine {
 	public Db_batch_mgr			Batch_mgr() {return batch_mgr;} private final    Db_batch_mgr batch_mgr = new Db_batch_mgr();
 	public Sql_qry_wtr			Sql_wtr() {return sql_wtr;} private final    Sql_qry_wtr sql_wtr = Sql_qry_wtr_.New__basic();
 	public TdbDatabase Db() {return db;} TdbDatabase db;
+	@Override public void CtorConn(SqlWkrMgr wkrMgr) {}
 	public void Conn_open() {
 		Tdb_conn_info tdb_url = (Tdb_conn_info)conn_info;
 		String url_str = tdb_url.Server();

140_dbs/src/gplx/dbs/wkrs/SqlWkr.java

@@ -0,0 +1,20 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.dbs.wkrs;
+
+public interface SqlWkr {
+    String Key();
+}

140_dbs/src/gplx/dbs/wkrs/SqlWkrMgr.java

@@ -0,0 +1,43 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.dbs.wkrs;
+
+import gplx.dbs.Db_conn;
+import gplx.dbs.wkrs.randoms.SqlRandomWkr;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class SqlWkrMgr {
+    private final Map<String, SqlWkr> map = new HashMap<>();
+    private final Db_conn conn;
+    public SqlWkrMgr(Db_conn conn) {
+        this.conn = conn;
+    }
+    public SqlWkr Get(String key) {
+        return map.get(key);
+    }
+    public void Set(SqlWkr wkr) {
+        map.put(wkr.Key(), wkr);
+    }
+
+    public Object ExecRandomObj(String select, String from, String where) {
+		SqlRandomWkr wkr = (SqlRandomWkr)map.get(SqlWkrMgr.WKR_RANDOM);
+		return wkr.SelectRandomRow(conn, select, from, where)[0];
+    }
+
+    public static final String WKR_RANDOM = "random";
+}

140_dbs/src/gplx/dbs/wkrs/randoms/SqlRandomWkr.java

@@ -0,0 +1,23 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.dbs.wkrs.randoms;
+
+import gplx.dbs.Db_conn;
+import gplx.dbs.wkrs.SqlWkr;
+
+public interface SqlRandomWkr extends SqlWkr {
+    Object[] SelectRandomRow(Db_conn conn, String select, String from, String where);
+}

140_dbs/src/gplx/dbs/wkrs/randoms/SqliteRandomWkr.java

@@ -0,0 +1,60 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.dbs.wkrs.randoms;
+
+import gplx.RandomAdp_;
+import gplx.dbs.Db_conn;
+import gplx.dbs.Db_rdr;
+import gplx.dbs.Db_rdr_;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
+public class SqliteRandomWkr implements SqlRandomWkr {
+    @Override public String Key() {return SqlWkrMgr.WKR_RANDOM;}
+
+    // NOTE: selects only 1 random row to simplify method signature
+    // * uses COUNT, LIMIT, OFFSET, so should also work for MySQL
+    // * to return many rows, look at https://stackoverflow.com/questions/4114940/select-random-rows-in-sqlite
+    // EX: SELECT * FROM table WHERE id IN (SELECT id FROM table ORDER BY RANDOM() LIMIT x)
+    // Also, note that SQLite does not support TYPE_FORWARD_ONLY so can't jump back and forth thru ResultSet
+    @Override public Object[] SelectRandomRow(Db_conn conn, String select, String from, String where) {
+        Db_rdr rdr = Db_rdr_.Empty;
+        try {
+            String sqlSuffix = ("FROM " + from + " WHERE " + where);
+
+            // get rowCount of resultSet
+            rdr = conn.Stmt_sql("SELECT COUNT(*) AS RowCount " + sqlSuffix).Exec_select__rls_auto();
+            int rowCount = rdr.Read_int("RowCount");
+
+            // get random row
+            int random = RandomAdp_.new_().Next(rowCount);
+            rdr = conn.Stmt_sql("SELECT " + select + " " + sqlSuffix + " LIMIT 1 OFFSET " + random).Exec_select__rls_auto();
+
+            // return result
+            int fldsLen = rdr.Fld_len();
+            Object[] rv = new Object[fldsLen];
+            for (int i = 0; i < fldsLen; i++) {
+                rv[i] = rdr.Read_at(i);
+            }
+            return rv;
+        }
+        catch (Exception exc) { // for debugging; should log
+            throw exc;
+        }
+        finally {
+            rdr.Rls();
+        }
+    }
+}

140_dbs/src/gplx/dbs/wkrs/randoms/TestRandomWkr.java

@@ -0,0 +1,51 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.dbs.wkrs.randoms;
+
+import gplx.dbs.Db_conn;
+import gplx.dbs.wkrs.SqlWkrMgr;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class TestRandomWkr implements SqlRandomWkr {
+    private final List<Object[]> list = new ArrayList<>();
+    private int index = 0;
+    public void AddRow(Object... ary) {
+        list.add(ary);
+    }
+    public void Clear() {
+        list.clear();
+        index = 0;
+    }
+    public String SelectRandomRowSelect() {return selectRandomRowSelect;} private String selectRandomRowSelect;
+    public String SelectRandomRowFrom() {return selectRandomRowFrom;} private String selectRandomRowFrom;
+    public String SelectRandomRowWhere() {return selectRandomRowWhere;} private String selectRandomRowWhere;
+
+    @Override public String Key() {return SqlWkrMgr.WKR_RANDOM;}
+    @Override public Object[] SelectRandomRow(Db_conn conn, String select, String from, String where) {
+        this.selectRandomRowSelect = select;
+        this.selectRandomRowFrom = from;
+        this.selectRandomRowWhere = where;
+        return list.get(index++);
+    }
+
+    public static TestRandomWkr New(Db_conn conn) {
+        TestRandomWkr wkr = new TestRandomWkr();
+        conn.WkrMgr().Set(wkr);
+        return wkr;
+    }
+}

150_gfui/src/gplx/gfui/imgs/ImageAdp_tst.java

@@ -17,7 +17,7 @@ package gplx.gfui.imgs; import gplx.*; import gplx.gfui.*;
 import org.junit.*;
 import gplx.core.consoles.*;
 import gplx.core.ios.*;
-import gplx.core.security.*;
+import gplx.core.security.algos.*;
 import gplx.gfui.imgs.*;
 public class ImageAdp_tst {
 	@Before public void setup() {
@@ -39,8 +39,8 @@ public class ImageAdp_tst {
 		Tfds.Eq_true(CompareAble_.Is(CompareAble_.More, afterModifiedTime, beforeModifiedTime));
 
 		Hash_algo algo = Hash_algo_.New__md5();
-		String loadHash = algo.Hash_stream_as_str(Console_adp_.Noop, Io_mgr.Instance.OpenStreamRead(load));
-		String saveHash = algo.Hash_stream_as_str(Console_adp_.Noop, Io_mgr.Instance.OpenStreamRead(save));
+		String loadHash = Hash_algo_utl.Calc_hash_as_str(algo, Io_mgr.Instance.LoadFilBry(load));
+		String saveHash = Hash_algo_utl.Calc_hash_as_str(algo, Io_mgr.Instance.LoadFilBry(save));
 		Tfds.Eq(loadHash, saveHash);
 	}
 }

150_gfui/src/gplx/gfui/kits/swts/Swt_html.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2021 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.
@@ -13,10 +13,31 @@ 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.gfui.kits.swts; import gplx.*; import gplx.gfui.*; import gplx.gfui.kits.*;
+package gplx.gfui.kits.swts;
+
+import gplx.Bool_;
+import gplx.Bry_bfr;
+import gplx.Bry_bfr_;
+import gplx.Byte_ascii;
+import gplx.Err_;
+import gplx.GfoMsg;
+import gplx.Gfo_evt_itm;
+import gplx.Gfo_evt_mgr;
+import gplx.Gfo_evt_mgr_;
+import gplx.Gfo_evt_mgr_owner;
+import gplx.Gfo_invk;
+import gplx.Gfo_invk_;
+import gplx.GfsCtx;
+import gplx.Int_;
+import gplx.Io_mgr;
+import gplx.Io_url;
+import gplx.Keyval_hash;
+import gplx.Long_;
+import gplx.Object_;
+import gplx.String_;
+import gplx.Type_;
+import gplx.UsrDlg_;
 import gplx.core.envs.System_;
-import gplx.core.primitives.*;
-import gplx.core.threads.Thread_adp_;
 import gplx.gfui.controls.elems.GfuiElem;
 import gplx.gfui.controls.gxws.GxwCbkHost;
 import gplx.gfui.controls.gxws.GxwCore_base;
@@ -24,27 +45,32 @@ import gplx.gfui.controls.gxws.GxwElem;
 import gplx.gfui.controls.gxws.Gxw_html;
 import gplx.gfui.controls.gxws.Gxw_html_load_tid_;
 import gplx.gfui.controls.standards.Gfui_html;
-import gplx.gfui.controls.standards.Gfui_tab_mgr;
-import gplx.gfui.draws.ColorAdp;
-import gplx.gfui.draws.ColorAdp_;
-import gplx.gfui.ipts.*;
+import gplx.gfui.ipts.IptEvtDataMouse;
+import gplx.gfui.ipts.IptMouseBtn;
+import gplx.gfui.ipts.IptMouseBtn_;
+import gplx.gfui.ipts.IptMouseWheel_;
 import gplx.gfui.kits.core.Swt_kit;
-
-import java.security.acl.Owner;
-import gplx.*;
-
 import org.eclipse.swt.SWT;
-import org.eclipse.swt.browser.*;
-import org.eclipse.swt.events.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.widgets.*;
-import java.security.acl.Owner;
-
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.browser.*;
-import org.eclipse.swt.events.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.browser.Browser;
+import org.eclipse.swt.browser.BrowserFunction;
+import org.eclipse.swt.browser.LocationEvent;
+import org.eclipse.swt.browser.LocationListener;
+import org.eclipse.swt.browser.ProgressEvent;
+import org.eclipse.swt.browser.ProgressListener;
+import org.eclipse.swt.browser.StatusTextEvent;
+import org.eclipse.swt.browser.StatusTextListener;
+import org.eclipse.swt.browser.TitleEvent;
+import org.eclipse.swt.browser.TitleListener;
+import org.eclipse.swt.events.FocusEvent;
+import org.eclipse.swt.events.FocusListener;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseListener;
+import org.eclipse.swt.events.MouseWheelListener;
+import org.eclipse.swt.events.TraverseEvent;
+import org.eclipse.swt.events.TraverseListener;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
 
 public class Swt_html implements Gxw_html, Swt_control, FocusListener, Gfo_evt_mgr_owner {
 	private Swt_html_lnr_location lnr_location; private Swt_html_lnr_status lnr_status;
@@ -206,7 +232,10 @@ class Swt_html_lnr_status implements StatusTextListener {
 	public void Host_set(Gfo_evt_itm host) {this.host = host;} Gfo_evt_itm host;
 	@Override public void changed(StatusTextEvent ev) {
 		if (html_box.Kit().Kit_mode__term()) return;	// shutting down raises status changed events; ignore, else SWT exception thrown; DATE:2014-05-29 
-		String ev_text = ev.text;
+
+		// 2020-09-22|ISSUE#:799|normalize URL due to SWT 4.16
+		String ev_text = Swt_html_utl.NormalizeSwtUrl(ev.text);
+
 		String load_by_url_path = html_box.Load_by_url_path();
 		if (load_by_url_path != null) ev_text = String_.Replace(ev_text, load_by_url_path, "");	// remove "C:/xowa/tab_1.html"
 //		if (String_.Has(ev_text, "Loading [MathJax]")) return;	// suppress MathJax messages; // NOTE: disabled for 2.1 (which no longer outputs messages to status); DATE:2013-05-03
@@ -227,17 +256,28 @@ class Swt_html_lnr_location implements LocationListener {
 	@Override public void changed(LocationEvent arg) 	{Pub_evt(arg, Gfui_html.Evt_location_changed);}
 	@Override public void changing(LocationEvent arg) 	{Pub_evt(arg, Gfui_html.Evt_location_changing);}
 	private void Pub_evt(LocationEvent arg, String evt) {
-		String location = arg.location;
-		if (String_.Eq(location, "about:blank")) return;	// location changing event fires once when page is loaded; ignore
-		if (	html_box.Browser_tid() == Swt_html.Browser_tid_webkit	// webkit prefixes "about:blank" to anchors; causes TOC to fail when clicking on links; EX:about:blank#TOC1; DATE:2015-06-09
-			&&	String_.Has_at_bgn(location, "about:blank")) {
-			location = String_.Mid(location, 11);	// 11 = "about:blank".length 
+		// 2020-09-22|ISSUE#:799|normalize URL due to SWT 4.16
+		String location = Swt_html_utl.NormalizeSwtUrl(arg.location);
+
+		// location_changing fires once when page is loaded -> ignore
+		if (String_.Eq(location, String_.Empty)) {
+			return;
 		}
-		if (	html_box.Html_doc_html_load_tid() == Gxw_html_load_tid_.Tid_url	// navigating to file://page.html will fire location event; ignore if url mode
+
+		// navigating to file://page.html will fire location event; ignore if url mode (loading pages from file)
+		if (html_box.Html_doc_html_load_tid() == Gxw_html_load_tid_.Tid_url
 			&& 	String_.Has_at_bgn(location, "file:")
 			&& 	String_.Has_at_end(location, ".html")
-			)
+			) {
 			return;
+		}
+
+		if (String_.Has_at_bgn(location, "javascript:")) {
+			html_box.Html_js_eval_script(location);
+			arg.doit = false;
+			return;
+		}
+
 		try {
 			Gfo_evt_mgr_.Pub_obj(host, evt, "v", location);
 			arg.doit = false; // cancel navigation event, else there will be an error when trying to go to invalid location

150_gfui/src/gplx/gfui/kits/swts/Swt_html_utl.java

@@ -0,0 +1,40 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2020 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.gfui.kits.swts;
+
+import gplx.String_;
+
+public class Swt_html_utl {
+    private static final String URL_PREFIX_ABOUT = "about:";
+    private static final String URL_PREFIX_BLANK = "blank";
+
+    public static String NormalizeSwtUrl(String url) {
+        String rv = url;
+
+        // 2020-09-19|ISSUE#:799|strip "about:" from url due to SWT 4.16
+        rv = String_.Has_at_bgn(rv, URL_PREFIX_ABOUT)
+            ? String_.Mid(rv, URL_PREFIX_ABOUT.length())
+            : rv;
+
+        // 2015-06-09|webkit prefixes "about:blank" to anchors; causes TOC to fail when clicking on links; EX:about:blank#TOC1
+        // 2020-09-22|removed webkit check due to SWT 4.16; `html_box.Browser_tid() == Swt_html.Browser_tid_webkit`
+        // still strip "blank"; note that SWT 4.16 changes anchors from "file:///#anchor" to "en.w/wiki/page/#anchor"
+        rv = String_.Has_at_bgn(rv, URL_PREFIX_BLANK)
+            ? String_.Mid(rv, URL_PREFIX_BLANK.length())
+            : rv;
+        return rv;
+    }
+}

400_xowa/.classpath

@@ -1,17 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" exported="true" path="/baselib"/>
-	<classpathentry kind="src" exported="true" path="/100_core"/>
-	<classpathentry kind="src" exported="true" path="/140_dbs"/>
-	<classpathentry kind="src" exported="true" path="/150_gfui"/>
-	<classpathentry kind="src" exported="true" path="/luaj_xowa"/>
-	<classpathentry kind="src" exported="true" path="/gplx.gflucene"/>
+	<classpathentry exported="true" kind="src" path="/baselib"/>
+	<classpathentry exported="true" kind="src" path="/100_core"/>
+	<classpathentry exported="true" kind="src" path="/140_dbs"/>
+	<classpathentry exported="true" kind="src" path="/150_gfui"/>
+	<classpathentry exported="true" kind="lib" path="lib/jtidy_xowa.jar"/>
+	<classpathentry exported="true" kind="src" path="/gplx.gflucene"/>
 	<classpathentry kind="src" path="src"/>
+	<classpathentry exported="true" kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry exported="true" kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
+	<classpathentry exported="true" kind="lib" path="lib/icu4j-57_1.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/vnu.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/Saxon-HE-9.9.1-2.jar"/>
+	<classpathentry exported="true" kind="src" path="/luaj_xowa"/>
+	<classpathentry exported="true" kind="lib" path="lib/utils-1.0.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/bcprov-jdk15on-164.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/gnu-crypto.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/jacksum.jar"/>
 	<classpathentry kind="output" path="bin"/>
-	<classpathentry kind="con" exported="true" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-	<classpathentry kind="con" exported="true" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
-	<classpathentry kind="lib" exported="true" path="lib/jtidy_xowa.jar"/>
-	<classpathentry kind="lib" exported="true" path="lib/icu4j-57_1.jar"/>
-	<classpathentry kind="lib" exported="true" path="lib/vnu.jar"/>
-	<classpathentry kind="lib" exported="true" path="lib/Saxon-HE-9.9.1-2.jar"/>
 </classpath>

400_xowa/src/gplx/core/caches/Gfo_cache_mgr.java

@@ -58,7 +58,10 @@ public class Gfo_cache_mgr {
 		int list_size = 0;
 		for (int i = 0; i < len; ++i) {
 			Gfo_cache_data itm = (Gfo_cache_data)hash.Get_at(i);
-			int new_size = list_size + itm.Size();
+			int itm_size = itm.Size();
+			if (itm_size == 0)
+				itm_size = 1; // if itm_size remains 0, it will never be added to tmp_delete cache; ISSUE#:561; DATE:2019-09-04
+			int new_size = list_size + itm_size;
 			if (new_size > reduce_by)
 				tmp_delete.Add(itm);
 			else

400_xowa/src/gplx/core/gfobjs/Gfobj_rdr__json.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -13,10 +13,26 @@ 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.core.gfobjs; import gplx.*; import gplx.core.*;
-import gplx.langs.jsons.*;
+package gplx.core.gfobjs;
+
+import gplx.Err_;
+import gplx.Io_mgr;
+import gplx.Io_url;
+import gplx.langs.jsons.Json_ary;
+import gplx.langs.jsons.Json_doc;
+import gplx.langs.jsons.Json_itm;
+import gplx.langs.jsons.Json_itm_;
+import gplx.langs.jsons.Json_itm_bool;
+import gplx.langs.jsons.Json_itm_decimal;
+import gplx.langs.jsons.Json_itm_int;
+import gplx.langs.jsons.Json_itm_long;
+import gplx.langs.jsons.Json_itm_str;
+import gplx.langs.jsons.Json_kv;
+import gplx.langs.jsons.Json_nde;
+import gplx.langs.jsons.Json_parser;
+
 public class Gfobj_rdr__json {
-	private final    Json_parser parser = new Json_parser();
+	private final Json_parser parser = new Json_parser();
 	public Gfobj_grp Load(Io_url url) {
 		byte[] src = Io_mgr.Instance.LoadFilBryOrNull(url); if (src == null) return null;
 		return this.Parse(src);
@@ -56,7 +72,7 @@ public class Gfobj_rdr__json {
 				case Json_itm_.Tid__nde:
 					Gfobj_nde sub_gnde = Gfobj_nde.New();
 					gnde.Add_nde(key_str, sub_gnde);
-					Parse_nde(Json_nde.cast(val), sub_gnde);
+					Parse_nde(Json_nde.Cast(val), sub_gnde);
 					break;
 				default:						throw Err_.new_unhandled_default(val_tid);
 			}
@@ -77,7 +93,7 @@ public class Gfobj_rdr__json {
 				}
 				case Json_itm_.Tid__nde: {
 					Gfobj_nde sub_ary = Gfobj_nde.New();
-					Parse_nde(Json_nde.cast(jsub), sub_ary);
+					Parse_nde(Json_nde.Cast(jsub), sub_ary);
 					ary[i] = sub_ary;
 					break;
 				}

400_xowa/src/gplx/core/net/Http_request_parser.java

@@ -91,6 +91,8 @@ public class Http_request_parser {
 					case Tid_x_host:					break;
 					case Tid_x_real_ip:     			break;
 					case Tid_accept_charset:			break;
+					case Tid_sec_fetch_mode:            break;
+					case Tid_sec_fetch_site:            break;
 					default:							throw Err_.new_unhandled(tid);
 				}
 			}
@@ -126,7 +128,11 @@ public class Http_request_parser {
 		while (true) {
 			line = Bry_.new_u8(rdr.Read_line());
 			if (Bry_.Has_at_bgn(line, content_type_boundary)) break;
-			tmp_bfr.Add(line).Add_byte_nl();
+
+			// add \n between lines, but not after last line
+			if (tmp_bfr.Len_gt_0())
+				tmp_bfr.Add_byte_nl();
+			tmp_bfr.Add(line);
 		}
 		byte[] val = tmp_bfr.To_bry_and_clear();
 		post_data_hash.Add(key, val);
@@ -154,7 +160,7 @@ public class Http_request_parser {
 	private String To_str() {return Make_request_itm().To_str(tmp_bfr, Bool_.N);}
 	private static final int Tid_get = 1, Tid_post = 2, Tid_host = 3, Tid_user_agent = 4, Tid_accept = 5, Tid_accept_language = 6, Tid_accept_encoding = 7, Tid_dnt = 8
 	, Tid_x_requested_with = 9, Tid_cookie = 10, Tid_referer = 11, Tid_content_length = 12, Tid_content_type = 13, Tid_connection = 14, Tid_pragma = 15, Tid_cache_control = 16
-	, Tid_origin = 17, Tid_accept_charset = 188, Tid_upgrade_request = 19, Tid_x_host = 20, Tid_x_real_ip = 21;
+	, Tid_origin = 17, Tid_accept_charset = 188, Tid_upgrade_request = 19, Tid_x_host = 20, Tid_x_real_ip = 21, Tid_sec_fetch_mode = 22, Tid_sec_fetch_site = 23;
 	private static final    Btrie_slim_mgr trie = Btrie_slim_mgr.ci_a7()
 	.Add_str_int("GET"                                    , Tid_get)
 	.Add_str_int("POST"                                   , Tid_post)
@@ -177,6 +183,8 @@ public class Http_request_parser {
 	.Add_str_int("Upgrade-Insecure-Requests:"             , Tid_upgrade_request)
 	.Add_str_int("X-Host:"                                , Tid_x_host)
 	.Add_str_int("X-Real-IP:"                             , Tid_x_real_ip)
+	.Add_str_int("Sec-Fetch-Mode:"                        , Tid_sec_fetch_mode)
+	.Add_str_int("Sec-Fetch-Site:"                        , Tid_sec_fetch_site)
 	;
 	private static final    byte[] Tkn_boundary = Bry_.new_a7("boundary="), Tkn_content_type_boundary_end = Bry_.new_a7("--")
 	, Tkn_content_disposition = Bry_.new_a7("Content-Disposition:"), Tkn_form_data = Bry_.new_a7("form-data;")

400_xowa/src/gplx/core/net/Http_request_parser_tst.java

@@ -41,8 +41,8 @@ public class Http_request_parser_tst {
 		, "val1"
 		, "-----------------------------12345678901234--"
 		)
-		, fxt.Make_post_data_itm("key0", "val0\n")
-		, fxt.Make_post_data_itm("key1", "val1\n")
+		, fxt.Make_post_data_itm("key0", "val0")
+		, fxt.Make_post_data_itm("key1", "val1")
 		);
 	}
 	@Test   public void Type_accept_charset()	{

400_xowa/src/gplx/core/primitives/Gfo_number_parser.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -13,17 +13,24 @@ 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.core.primitives; import gplx.*; import gplx.core.*;
+package gplx.core.primitives;
+
+import gplx.Byte_ascii;
+import gplx.Decimal_adp;
+import gplx.Decimal_adp_;
+import gplx.Int_;
+import gplx.Math_;
+
 public class Gfo_number_parser {
-	public int				Rv_as_int() {return (int)num_val;} private long num_val = 0;
-	public long				Rv_as_long() {return num_val;}
-	public Decimal_adp		Rv_as_dec() {return dec_val == null ? Decimal_adp_.long_(num_val) : dec_val;} private Decimal_adp dec_val = null;
-	public boolean				Is_int()	{return dec_val == null && (num_val >= Int_.Min_value && num_val <= Int_.Max_value);}
-	public boolean				Has_err()	{return has_err;} private boolean has_err;
-	public boolean				Has_frac()	{return has_frac;} private boolean has_frac;
-	public boolean				Hex_enabled() {return hex_enabled;} public Gfo_number_parser Hex_enabled_(boolean v) {hex_enabled = v; return this;} private boolean hex_enabled;
-	public Gfo_number_parser	Ignore_chars_(byte[] v) {this.ignore_chars = v; return this;} private byte[] ignore_chars;
-	public Gfo_number_parser	Ignore_space_at_end_y_() {this.ignore_space_at_end = true; return this;} private boolean ignore_space_at_end;
+	public int                  Rv_as_int() {return (int)num_val;} private long num_val = 0;
+	public long                 Rv_as_long() {return num_val;}
+	public Decimal_adp          Rv_as_dec() {return dec_val == null ? Decimal_adp_.long_(num_val) : dec_val;} private Decimal_adp dec_val = null;
+	public boolean              Is_int() {return dec_val == null && (num_val >= Int_.Min_value && num_val <= Int_.Max_value);}
+	public boolean              Has_err() {return has_err;} private boolean has_err;
+	public boolean              Has_frac() {return has_frac;} private boolean has_frac;
+	public boolean              Hex_enabled() {return hex_enabled;} public Gfo_number_parser Hex_enabled_(boolean v) {hex_enabled = v; return this;} private boolean hex_enabled;
+	public Gfo_number_parser    Ignore_chars_(byte[] v) {this.ignore_chars = v; return this;} private byte[] ignore_chars;
+	public Gfo_number_parser    Ignore_space_at_end_y_() {this.ignore_space_at_end = true; return this;} private boolean ignore_space_at_end;
 	public void	Clear() {
 		ignore_chars = null;
 	}
@@ -112,6 +119,7 @@ public class Gfo_number_parser {
 						has_exp = true;
 						has_neg = false;
 						has_plus = false;	// allow +1E+2
+						has_num = false; // 2020-09-07|ISSUE#:795|scientific notation requires coefficient; set has_num to false which will fail below if no coefficient
 					}
 					break;
 				case Byte_ascii.Ltr_A:

400_xowa/src/gplx/core/primitives/Gfo_number_parser_tst.java

@@ -1,6 +1,6 @@
 /*
 XOWA: the XOWA Offline Wiki Application
-Copyright (C) 2012-2017 gnosygnu@gmail.com
+Copyright (C) 2012-2020 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.
@@ -13,11 +13,18 @@ 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.core.primitives; import gplx.*; import gplx.core.*;
-import org.junit.*;
+package gplx.core.primitives;
+
+import gplx.Bry_;
+import gplx.Decimal_adp;
+import gplx.Decimal_adp_;
+import gplx.Tfds;
+import org.junit.Before;
+import org.junit.Test;
+
 public class Gfo_number_parser_tst {
-	@Before public void init() {fxt.Clear();} private final    Gfo_number_parser_fxt fxt = new Gfo_number_parser_fxt();
-	@Test  public void Integer() {
+	@Before public void init() {fxt.Clear();} private final Gfo_number_parser_fxt fxt = new Gfo_number_parser_fxt();
+	@Test public void Integer() {
 		fxt.Test_int("1", 1);
 		fxt.Test_int("1234", 1234);
 		fxt.Test_int("1234567890", 1234567890);
@@ -25,25 +32,26 @@ public class Gfo_number_parser_tst {
 		fxt.Test_int("+1", 1);
 		fxt.Test_int("00001", 1);
 	}
-	@Test  public void Long() {
+	@Test public void Long() {
 		fxt.Test_long("9876543210", 9876543210L);
 	}
-	@Test  public void Decimal() {
+	@Test public void Decimal() {
 		fxt.Test_dec("1.23", Decimal_adp_.parse("1.23"));
 		fxt.Test_dec("1.023", Decimal_adp_.parse("1.023"));
 		fxt.Test_dec("-1.23", Decimal_adp_.parse("-1.23"));
 	}
-	@Test  public void Double_long() {
+	@Test public void Double_long() {
 		fxt.Test_dec(".42190046219457", Decimal_adp_.parse(".42190046219457"));
 	}
-	@Test  public void Exponent() {
+	@Test public void Exponent() {
 		fxt.Test_int("1E2", 100);
 		fxt.Test_dec("1.234E2", Decimal_adp_.parse("123.4"));
 		fxt.Test_dec("1.234E-2", Decimal_adp_.parse(".01234"));
 		fxt.Test_dec("123.4E-2", Decimal_adp_.parse("1.234"));
 		fxt.Test_dec("+6.0E-3", Decimal_adp_.parse(".006"));
+		fxt.Test_err("e24", true); // 2020-09-07|ISSUE#:795|scientific notation requires coefficient
 	}
-	@Test  public void Err() {
+	@Test public void Err() {
 		fxt.Test_err("+", true);
 		fxt.Test_err("-", true);
 		fxt.Test_err("a", true);
@@ -52,14 +60,14 @@ public class Gfo_number_parser_tst {
 		fxt.Test_err("1,,1", true);
 		fxt.Test_err("1", false);
 	}
-	@Test  public void Hex() {
+	@Test public void Hex() {
 		fxt.Test_hex("0x1"	, 1);
 		fxt.Test_hex("0xF"	, 15);
 		fxt.Test_hex("0x20"	, 32);
 		fxt.Test_hex("x20"	, 0, false);
 		fxt.Test_hex("d"	, 0, false);	// PURPOSE: d was being converted to 13; no.w:Hovedbanen; DATE:2014-04-13
 	}
-	@Test  public void Ignore() {
+	@Test public void Ignore() {
 		fxt.Init_ignore("\n\t");
 		fxt.Test_int("1"	, 1);
 		fxt.Test_int("1\n"	, 1);
@@ -69,7 +77,7 @@ public class Gfo_number_parser_tst {
 	}
 }
 class Gfo_number_parser_fxt {
-	private final    Gfo_number_parser parser = new Gfo_number_parser();
+	private final Gfo_number_parser parser = new Gfo_number_parser();
 	public void Clear() {parser.Clear();}
 	public void Init_ignore(String chars) {parser.Ignore_chars_(Bry_.new_a7(chars));}
 	public void Test_int(String raw, int expd) {

400_xowa/src/gplx/core/security/algos/Hash_algo_factory__php_.java

@@ -0,0 +1,117 @@
+/*
+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.core.security.algos; import gplx.*; import gplx.core.*; import gplx.core.security.*;
+import gplx.core.security.algos.bouncy_castle.*;
+import gplx.core.security.algos.getopt.*;
+import gplx.core.security.algos.gnu_crypto.*;
+import gplx.core.security.algos.jre.*;
+import gplx.core.security.algos.jacksum.*;
+public class Hash_algo_factory__php_ {
+	public static Hash_algo_factory__composite New() {
+		Hash_algo_factory__composite rv = new Hash_algo_factory__composite();
+		rv.Reg_many(Bouncy_castle_factory.Instance
+			, Bouncy_castle_factory.Key__md2, Bouncy_castle_factory.Key__md4, Bouncy_castle_factory.Key__md5
+			, Bouncy_castle_factory.Key__sha1, Bouncy_castle_factory.Key__sha224, Bouncy_castle_factory.Key__sha256, Bouncy_castle_factory.Key__sha384
+			);
+		rv.Reg_one(Bouncy_castle_factory.Instance, Bouncy_castle_factory.Key__sha_512_224, "sha512/224");
+		rv.Reg_one(Bouncy_castle_factory.Instance, Bouncy_castle_factory.Key__sha_512_256, "sha512/256");
+		rv.Reg_many(Bouncy_castle_factory.Instance
+			, Bouncy_castle_factory.Key__sha512
+			, Bouncy_castle_factory.Key__sha3_224, Bouncy_castle_factory.Key__sha3_256, Bouncy_castle_factory.Key__sha3_384, Bouncy_castle_factory.Key__sha3_512
+			, Bouncy_castle_factory.Key__ripemd128, Bouncy_castle_factory.Key__ripemd160, Bouncy_castle_factory.Key__ripemd256, Bouncy_castle_factory.Key__ripemd320
+			, Bouncy_castle_factory.Key__whirlpool
+			);
+		rv.Reg_one(Jacksum_factory.Instance, Jacksum_factory.Key__tiger_128, "tiger128,3");
+		rv.Reg_one(Jacksum_factory.Instance, Jacksum_factory.Key__tiger_160, "tiger160,3");
+		rv.Reg_one(Jacksum_factory.Instance, Jacksum_factory.Key__tiger_192, "tiger192,3");
+		rv.Reg_many(Jacksum_factory.Instance, Jacksum_factory.Key__gost);
+		rv.Reg_many(Jre_checksum_factory.Instance, Jre_checksum_factory.Key__adler32);
+		// "crc" may be BZ2 CRC; https://stackoverflow.com/questions/40741707/php-hashcrc32-and-crc32-return-different-value
+		rv.Reg_one(Jre_checksum_factory.Instance, Jre_checksum_factory.Key__crc32, "crc32b"); // PHP crc32b is the equivalent of Java CRC
+
+		rv.Reg_many(Getopt_factory.Instance
+			, Getopt_factory.Key__fnv132, Getopt_factory.Key__fnv164, Getopt_factory.Key__fnv1a32, Getopt_factory.Key__fnv1a64
+			);
+		rv.Reg_many(Gnu_haval_factory.Instance
+			, Gnu_haval_factory.Key__haval128_3, Gnu_haval_factory.Key__haval160_3, Gnu_haval_factory.Key__haval192_3, Gnu_haval_factory.Key__haval224_3, Gnu_haval_factory.Key__haval256_3
+			, Gnu_haval_factory.Key__haval128_4, Gnu_haval_factory.Key__haval160_4, Gnu_haval_factory.Key__haval192_4, Gnu_haval_factory.Key__haval224_4, Gnu_haval_factory.Key__haval256_4
+			, Gnu_haval_factory.Key__haval128_5, Gnu_haval_factory.Key__haval160_5, Gnu_haval_factory.Key__haval192_5, Gnu_haval_factory.Key__haval224_5, Gnu_haval_factory.Key__haval256_5
+			);
+		return rv;
+	}
+}
+/*
+URL: https://en.wikipedia.org/w/index.php?title=Module:Sandbox/Gnosygnu&action=edit
+SRC: mw.logObject(mw.hash.listAlgorithms())
+OUT:
+table#1 {
+"md2",             -- bouncycastle
+"md4",             -- bouncycastle
+"md5",             -- bouncycastle
+"sha1",            -- bouncycastle
+"sha224",          -- bouncycastle
+"sha256",          -- bouncycastle
+"sha384",          -- bouncycastle
+"sha512/224",      -- bouncycastle
+"sha512/256",      -- bouncycastle
+"sha512",          -- bouncycastle
+"sha3-224",        -- bouncycastle
+"sha3-256",        -- bouncycastle
+"sha3-384",        -- bouncycastle
+"sha3-512",        -- bouncycastle
+"ripemd128",       -- bouncycastle
+"ripemd160",       -- bouncycastle
+"ripemd256",       -- bouncycastle
+"ripemd320",       -- bouncycastle
+"whirlpool",       -- bouncycastle
+"tiger128,3",      -- jacksum
+"tiger160,3",      -- jacksum
+"tiger192,3",      -- jacksum
+"tiger128,4",
+"tiger160,4",
+"tiger192,4",
+"snefru",
+"snefru256",
+"gost",            -- jacksum; not in bouncycastle (tried GOST3411; GOST3411-2012-256; GOST3411-2012-512)
+"gost-crypto",
+"adler32",         -- jre
+"crc32",
+"crc32b",          -- jre
+"fnv132",          -- getopt
+"fnv1a32",         -- getopt
+"fnv164",          -- getopt
+"fnv1a64",         -- getopt
+"joaat",
+"haval128,3",      -- gnu-crypto
+"haval160,3",      -- gnu-crypto
+"haval192,3",      -- gnu-crypto
+"haval224,3",      -- gnu-crypto
+"haval256,3",      -- gnu-crypto
+"haval128,4",      -- gnu-crypto
+"haval160,4",      -- gnu-crypto
+"haval192,4",      -- gnu-crypto
+"haval224,4",      -- gnu-crypto
+"haval256,4",      -- gnu-crypto
+"haval128,5",      -- gnu-crypto
+"haval160,5",      -- gnu-crypto
+"haval192,5",      -- gnu-crypto
+"haval224,5",      -- gnu-crypto
+"haval256,5",      -- gnu-crypto
+}
+REF:
+* https://www.bouncycastle.org/specifications.html
+* https://www.gnu.org/software/gnu-crypto/manual/api/gnu/crypto/hash/BaseHash.html
+*/

400_xowa/src/gplx/core/security/algos/bouncy_castle/Bouncy_castle_algo.java

@@ -0,0 +1,48 @@
+/*
+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.core.security.algos.bouncy_castle; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
+import gplx.core.encoders.*;
+import java.security.MessageDigest;
+import java.security.Security;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
+public class Bouncy_castle_algo implements Hash_algo {
+	private static boolean Provider_needs_init = true;
+	private final MessageDigest md;
+	public Bouncy_castle_algo(String key) {
+		// register BounceCastleProvider
+		if (Provider_needs_init) {
+			Provider_needs_init = false;
+			Security.addProvider(new BouncyCastleProvider());
+		}
+
+		// get digest
+		try {
+			this.key = key;
+			this.md = MessageDigest.getInstance(key);
+		}
+		catch (Exception exc) {
+			throw Err_.new_wo_type("unknown messageDigest; key=" + key);
+		}
+	}
+	public String Key() {return key;} private final String key;
+	public Hash_algo Clone_hash_algo() {return new Bouncy_castle_algo(key);}
+	public void Update_digest(byte[] bry, int bgn, int end) {md.update(bry, bgn, end - bgn);}
+	public byte[] To_hash_bry() {
+		// get hash
+		byte[] hash = md.digest();
+		return Hex_utl_.Encode_bry(hash);
+	}
+}

400_xowa/src/gplx/core/security/algos/bouncy_castle/Bouncy_castle_factory.java

@@ -0,0 +1,30 @@
+/*
+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.core.security.algos.bouncy_castle; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
+public class Bouncy_castle_factory implements Hash_algo_factory {
+	public Hash_algo New_hash_algo(String key) {
+		return new Bouncy_castle_algo(key);
+	}
+	public static String
+	  Key__md2 = "md2", Key__md4 = "md4", Key__md5 = "md5"
+	, Key__sha1 = "sha1", Key__sha224 = "sha224", Key__sha256 = "sha256", Key__sha384 = "sha384"
+	, Key__sha_512_224 = "sha-512/224", Key__sha_512_256 = "sha-512/256", Key__sha512 = "sha512"
+	, Key__sha3_224 = "sha3-224", Key__sha3_256 = "sha3-256", Key__sha3_384 = "sha3-384", Key__sha3_512 = "sha3-512"
+	, Key__ripemd128 = "ripemd128", Key__ripemd160 = "ripemd160", Key__ripemd256 = "ripemd256", Key__ripemd320 = "ripemd320"
+	, Key__whirlpool = "whirlpool"
+	;
+	public static final    Bouncy_castle_factory Instance = new Bouncy_castle_factory(); Bouncy_castle_factory() {}
+}

400_xowa/src/gplx/core/security/algos/getopt/Getopt_algo.java

@@ -0,0 +1,38 @@
+/*
+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.core.security.algos.getopt; import gplx.*; import gplx.core.*; import gplx.core.security.*; import gplx.core.security.algos.*;
+import org.getopt.util.hash.FNV1;
+public class Getopt_algo implements Hash_algo {
+	private final Getopt_factory factory;
+	private final FNV1 hash;
+	private final int pad_min;
+	public Getopt_algo(Getopt_factory factory, String key) {
+		this.key = key;
+		this.factory = factory;
+		this.pad_min = String_.Has_at_end(key, "32") ? 7 : 15;
+		this.hash = factory.New_FNV1(key);
+	}
+	public String Key() {return key;} private final String key;
+	public Hash_algo Clone_hash_algo() {return new Getopt_algo(factory, key);}
+	public void Update_digest(byte[] bry, int bgn, int end) {hash.init(bry, bgn, end);}
+	public byte[] To_hash_bry() {
+		long val = hash.getHash();
+		String rv = Long.toHexString(val);
+		if (String_.Len(rv) == pad_min)
+			rv = "0" + rv;
+		return Bry_.new_u8(rv);
+	}
+}