Parser: Add namespace to Template title [#784]

400_xowa/src/gplx/xowa/langs/cases/Xol_case_cvt.java

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+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2020 https://github.com/desb42
+
+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.xowa.langs.cases;
+
+import gplx.Bool_;
+import gplx.Bry_;
+import gplx.Bry_bfr;
+import gplx.Bry_bfr_;
+
+public class Xol_case_cvt {
+	public static byte[] Upper_1st(byte[] src, int pos, int src_len, boolean reuse) {return Up_low_1st(src, pos, src_len, Bool_.Y, reuse);}
+	public static byte[] Upper_1st(byte[] src, int pos, int src_len) {return Up_low_1st(src, pos, src_len, Bool_.Y);}
+	public static byte[] Lower_1st(byte[] src, int pos, int src_len) {return Up_low_1st(src, pos, src_len, Bool_.N);}
+	public static byte[] Up_low_1st(byte[] src, int pos, int src_len, boolean upper) {
+		return Up_low_1st(src, pos, src_len, upper, Bool_.Y);
+	}
+	public static byte[] Up_low_1st(byte[] src, int pos, int src_len, boolean upper, boolean reuse) {
+		if (src_len == 0) return Bry_.Empty;
+		byte b = src[pos];
+		int b_len = gplx.core.intls.Utf8_.Len_of_char_by_1st_byte(b);
+		if (b_len > src_len) return Bry_.Empty; // bad unicode
+		if (reuse) {
+			return Upper_Lower_1st(src, pos, src_len, b_len, upper);
+		}
+		else {
+			int copyLen = src_len - pos;
+			byte[] copy = new byte[copyLen];
+			for (int i = 0; i < copyLen; i++) {
+				copy[i] = src[pos + i];
+			}
+			return Upper_Lower_1st(copy, 0, copyLen, b_len, upper);
+		}
+	}
+	public static byte[] Upper_1st(byte[] src, int pos, int src_len, int b_len) {return Upper_Lower_1st(src, pos, src_len, b_len, Bool_.Y);}
+	public static byte[] Lower_1st(byte[] src, int pos, int src_len, int b_len) {return Upper_Lower_1st(src, pos, src_len, b_len, Bool_.N);}
+	private static byte[] Upper_Lower_1st(byte[] src, int pos, int src_len, int b_len, boolean upper) {
+		byte[] ucase;
+		if (upper)
+			ucase = Xol_case_cvt_.Upper(src, pos, b_len);
+		else
+			ucase = Xol_case_cvt_.Lower(src, pos, b_len);
+		if (ucase == Xol_case_cvt_.byte_NOCHANGE)
+			return src;
+		if (ucase.length == b_len) {
+			for (int i = 0; i < b_len; i++)
+				src[pos+i] = ucase[i];
+			return src;
+		} else {
+			// need to rebuild the byte string
+			Bry_bfr tmp_bfr = Bry_bfr_.New();
+			tmp_bfr.Add_mid(src, 0, pos);
+			tmp_bfr.Add(ucase);
+			tmp_bfr.Add_mid(src, pos + b_len, src_len);
+			return tmp_bfr.To_bry_and_clear();
+		}
+	}
+
+	public static byte[] Uppercase(byte[] src, int src_len) {return Case_cvt(src, src_len, Bool_.Y);}
+	public static byte[] Lowercase(byte[] src, int src_len) {return Case_cvt(src, src_len, Bool_.N);}
+	public static byte[] Case_cvt(byte[] src, int src_len, boolean upper) {
+		Bry_bfr tmp_bfr = null;
+		int pos = 0;
+		while (pos < src_len) {
+			byte b = src[pos];
+			int b_len = gplx.core.intls.Utf8_.Len_of_char_by_1st_byte(b);
+			byte[] ucase;
+			if (upper)
+				ucase = Xol_case_cvt_.Upper(src, pos, b_len);
+			else
+				ucase = Xol_case_cvt_.Lower(src, pos, b_len);
+			if (tmp_bfr == null) {
+				if (ucase != Xol_case_cvt_.byte_NOCHANGE) {
+					if (ucase.length == b_len) {
+						for (int i = 0; i < b_len; i++)
+							src[pos+i] = ucase[i];
+					} else {
+						// need to rebuild the byte string
+						tmp_bfr = Bry_bfr_.New();
+						tmp_bfr.Add_mid(src, 0, pos);
+						tmp_bfr.Add(ucase);
+					}
+				}
+			} else {
+				if (ucase != Xol_case_cvt_.byte_NOCHANGE) {
+					tmp_bfr.Add(ucase);
+				} else {
+					if (b_len == 1)
+						tmp_bfr.Add_byte(b);
+					else
+						tmp_bfr.Add_mid(src, pos, pos + b_len);
+				}
+			}
+			pos += b_len;
+		}
+		if (tmp_bfr == null)
+			return src;
+		else
+			return tmp_bfr.To_bry_and_clear();
+	}
+}