add PIString::lineNumber() method

add ""_tr literal to translate string by PITranslator
add pip_tr util, now useless, only can generate *.ts
add qt_support internal lib, now only works with *.ts file
pip_vtt migrate to qt_support

utils/qt_support/ts_file.cpp

@@ -0,0 +1,175 @@
+/*
+    PIP - Platform Independent Primitives
+    Ivan Pelipenko peri4ko@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ts_file.h"
+
+#include "pifile.h"
+#include "piiostream.h"
+
+
+void TSFile::Context::confirm(const PIString & msg, const PIString & file, int line) {
+	if (msg.isEmpty()) return;
+	bool is_new = !messages.contains(msg);
+	auto & m(messages[msg]);
+	m.source   = msg;
+	m.filename = file;
+	m.line     = line >= 0 ? PIString::fromNumber(line) : PIString();
+	m.obsolete = false;
+	if (is_new) m.type = "unfinished";
+}
+
+
+PIString TSFile::mask(const PIString & in) {
+	static const PIVector<PIPair<PIString, PIString>> map = {
+		{"&",  "&amp;" },
+		{"<",  "&lt;"  },
+		{">",  "&gt;"  },
+		{"'",  "&apos;"},
+		{"\"", "&quot;"},
+	};
+	PIString ret = in;
+	for (const auto & i: map)
+		ret.replaceAll(i.first, i.second);
+	return ret;
+}
+
+
+PIString TSFile::unmask(const PIString & in) {
+	static const PIVector<PIPair<PIString, PIString>> map = {
+		{"<",  "&lt;"  },
+		{">",  "&gt;"  },
+		{"'",  "&apos;"},
+		{"\"", "&quot;"},
+		{"&",  "&amp;" },
+	};
+	PIString ret = in;
+	for (const auto & i: map)
+		ret.replaceAll(i.second, i.first);
+	return ret;
+}
+
+
+TSFile::Content TSFile::read(const PIString & path) {
+	Content ret;
+	PIFile f(path, PIIODevice::ReadOnly);
+	if (!f.isOpened()) return ret;
+	PIIOTextStream ts(&f);
+	Context * cc = nullptr;
+	Message msg;
+	int phase = 0;
+	while (!ts.isEnd()) {
+		auto line = ts.readLine().trim();
+		switch (phase) {
+		case 0:
+			if (line == "<context>") phase = 1;
+			break;
+		case 1:
+			if (line.startsWith("<name>")) {
+				line.cutLeft(6).cutRight(7);
+				// if (line == context) phase = 2;
+				cc    = &(ret[line]);
+				phase = 2;
+			}
+			break;
+		case 2:
+			if (line == "<message>") {
+				msg   = {};
+				phase = 3;
+			}
+			break;
+		case 3:
+			if (line == "</message>") {
+				if (cc) cc->messages[msg.source] = msg;
+				phase = 2;
+			} else if (line.startsWith("<source>")) {
+				line.cutLeft(8).cutRight(9);
+				msg.source = unmask(line);
+			} else if (line.startsWith("<location")) {
+				PIString trs = line.takeRange('<', '>').cutLeft(8);
+				while (trs.isNotEmpty()) {
+					PIString t = trs.takeCWord();
+					trs.cutLeft(1);
+					PIString v = trs.takeRange('\"', '\"');
+					if (t == "filename") msg.filename = v;
+					if (t == "line") msg.line = v;
+					if (trs.size_s() <= 2) break;
+				}
+			} else if (line.startsWith("<translation")) {
+				PIString trs = line.takeRange('<', '>').cutLeft(11);
+				while (trs.isNotEmpty()) {
+					PIString t = trs.takeCWord();
+					trs.cutLeft(1);
+					PIString v = trs.takeRange('\"', '\"');
+					if (t == "type") msg.type = v;
+				}
+				line.cutRight(14);
+				msg.translation = unmask(line);
+			}
+			break;
+		}
+		if (line == "</context>") {
+			cc    = nullptr;
+			phase = 0;
+		}
+	}
+	return ret;
+}
+
+
+bool TSFile::write(const PIString & path, const TSFile::Content & content, const PIString & lang, bool no_obsolete) {
+	PIFile outf(path, PIIODevice::ReadWrite);
+	if (!outf.isOpened()) {
+		piCerr << "Can`t open" << outf.path() << "!";
+		return false;
+	}
+	outf.clear();
+	PIIOTextStream ts(&outf);
+	auto writeMessage = [&ts](const Message & m) {
+		if (m.source.isEmpty()) return;
+		ts << "    <message>\n";
+		if (m.filename.isNotEmpty()) {
+			ts << "        <location filename=\"" << m.filename << "\"";
+			if (m.line.isNotEmpty()) ts << " line=\"" << m.line << "\"";
+			ts << "/>\n";
+		}
+		ts << "        <source>" << mask(m.source) << "</source>\n";
+		ts << "        <translation";
+		if (m.type.isNotEmpty()) ts << " type=\"" << m.type << "\"";
+		ts << ">" << mask(m.translation) << "</translation>\n";
+		ts << "    </message>\n";
+	};
+
+	ts << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
+	ts << "<!DOCTYPE TS>\n";
+	ts << "<TS version=\"2.1\" language=\"" << lang << "\">\n";
+	auto cit = content.makeIterator();
+	while (cit.next()) {
+		if (cit.value().messages.isEmpty()) continue;
+		ts << "<context>\n";
+		ts << "    <name>" << cit.key() << "</name>\n";
+		auto mit = cit.value().messages.makeIterator();
+		while (mit.next()) {
+			if (mit.value().obsolete && no_obsolete) continue;
+			writeMessage(mit.value());
+		}
+		ts << "</context>\n";
+	};
+	ts << "</TS>\n";
+
+	return true;
+}