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[vidalia-svn] r2856: Add a po2nsh tool to convert .po files into .nsh files conta (in vidalia/trunk/src/tools: . po2nsh)
Author: edmanm
Date: 2008-07-13 00:09:58 -0400 (Sun, 13 Jul 2008)
New Revision: 2856
Added:
vidalia/trunk/src/tools/po2nsh/
vidalia/trunk/src/tools/po2nsh/CMakeLists.txt
vidalia/trunk/src/tools/po2nsh/po2nsh.cpp
Modified:
vidalia/trunk/src/tools/CMakeLists.txt
Log:
Add a po2nsh tool to convert .po files into .nsh files containing language
table entries.
Modified: vidalia/trunk/src/tools/CMakeLists.txt
===================================================================
--- vidalia/trunk/src/tools/CMakeLists.txt 2008-07-13 04:08:49 UTC (rev 2855)
+++ vidalia/trunk/src/tools/CMakeLists.txt 2008-07-13 04:09:58 UTC (rev 2856)
@@ -12,4 +12,5 @@
add_subdirectory(ts2po)
add_subdirectory(po2ts)
+add_subdirectory(po2nsh)
Added: vidalia/trunk/src/tools/po2nsh/CMakeLists.txt
===================================================================
--- vidalia/trunk/src/tools/po2nsh/CMakeLists.txt (rev 0)
+++ vidalia/trunk/src/tools/po2nsh/CMakeLists.txt 2008-07-13 04:09:58 UTC (rev 2856)
@@ -0,0 +1,23 @@
+##
+## $Id$
+##
+## This file is part of Vidalia, and is subject to the license terms in the
+## LICENSE file, found in the top level directory of this distribution. If
+## you did not receive the LICENSE file with this file, you may obtain it
+## from the Vidalia source package distributed by the Vidalia Project at
+## http://www.vidalia-project.net/. No part of Vidalia, including this file,
+## may be copied, modified, propagated, or distributed except according to
+## the terms described in the LICENSE file.
+##
+
+## po2nsh source files
+set(po2nsh_SRCS
+ po2nsh.cpp
+)
+
+## Create the po2nsh executable
+add_executable(po2nsh ${po2nsh_SRCS})
+
+## Link the executable with the appropriate Qt libraries
+target_link_libraries(po2nsh ${QT_LIBRARIES} common)
+
Property changes on: vidalia/trunk/src/tools/po2nsh/CMakeLists.txt
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native
Added: vidalia/trunk/src/tools/po2nsh/po2nsh.cpp
===================================================================
--- vidalia/trunk/src/tools/po2nsh/po2nsh.cpp (rev 0)
+++ vidalia/trunk/src/tools/po2nsh/po2nsh.cpp 2008-07-13 04:09:58 UTC (rev 2856)
@@ -0,0 +1,289 @@
+/*
+** This file is part of Vidalia, and is subject to the license terms in the
+** LICENSE file, found in the top level directory of this distribution. If you
+** did not receive the LICENSE file with this file, you may obtain it from the
+** Vidalia source package distributed by the Vidalia Project at
+** http://www.vidalia-project.net/. No part of Vidalia, including this file,
+** may be copied, modified, propagated, or distributed except according to the
+** terms described in the LICENSE file.
+*/
+
+#include <QHash>
+#include <QFile>
+#include <QTextStream>
+#include <QTextCodec>
+#include <stringutil.h>
+
+
+/** Parse the context name from <b>str</b>, where the context name is of the
+ * form DQUOTE ContextName DQUOTE. */
+QString
+parse_message_context(const QString &str)
+{
+ QString out = str.trimmed();
+ out = out.replace("\"", "");
+ return out;
+}
+
+/** Parse the context name from <b>str</b>, where <b>str</b> is of the
+ * form ContextName#Number. This is the format used by translate-toolkit. */
+QString
+parse_message_context_lame(const QString &str)
+{
+ if (str.contains("#"))
+ return str.section("#", 0, 0);
+ return QString();
+}
+
+/** Parse the PO-formatted message string from <b>msg</b>. If <b>msg</b> is a
+ * multiline string, the extra double quotes will be replaced with newlines
+ * appropriately. */
+QString
+parse_message_string(const QString &msg)
+{
+ QString out = msg.trimmed();
+
+ out.replace("\"\n\"", "");
+ if (out.startsWith("\""))
+ out = out.remove(0, 1);
+ if (out.endsWith("\""))
+ out.chop(1);
+ out.replace("\\\"", "\"");
+ out.replace("\\n", "\\r\\n");
+ return out;
+}
+
+/** Read and return the next non-empty line from <b>stream</b>. */
+QString
+read_next_line(QTextStream *stream)
+{
+ stream->skipWhiteSpace();
+ return stream->readLine().append("\n");
+}
+
+/** Skip past the header portion of the PO file and any leading whitespace.
+ * The next line read from <b>po</b> will be the first non-header line in the
+ * document. */
+QHash<QString,QString>
+parse_po_header(QTextStream *po)
+{
+ QString line, key, value;
+ QHash<QString,QString> header;
+
+ /* Skip any leading whitespace before the header */
+ po->skipWhiteSpace();
+ /* Read to the first empty line */
+ line = po->readLine();
+ while (!line.isEmpty() && !po->atEnd()) {
+ if (line.contains(":")) {
+ line.replace("\\n", "");
+ if (line.startsWith("\""))
+ line = line.remove(0, 1);
+ if (line.endsWith("\""))
+ line.chop(1);
+
+ key = line.section(":", 0, 0).trimmed();
+ value = line.section(":", 1, -1).trimmed();
+ header.insert(key, value);
+ }
+ line = po->readLine();
+ }
+ return header;
+}
+
+/** Parse the Content-Type header line for a <i>charset=ENCODING</i>
+ * specifier. If found, return a QTextCodec created using the given ENCODING.
+ * If the Content-Type header specified an invalid encoding, then return a
+ * NULL QTextCodec. If there was either no Content-Type header, or it did not
+ * specify a charset, then return an ISO-8859-1 QTextCodec. */
+QTextCodec*
+parse_charset(const QHash<QString,QString> &header)
+{
+ QString line, charset;
+ QHash<QString,QString> content_type;
+ QTextCodec *codec;
+ bool ok;
+
+ if (!header.contains("Content-Type"))
+ return QTextCodec::codecForName("ISO-8859-1");
+ line = header.value("Content-Type");
+ line = line.replace(";", " ");
+
+ content_type = string_parse_keyvals(line, &ok);
+ if (!ok)
+ return 0;
+ if (!content_type.contains("charset"))
+ return QTextCodec::codecForName("ISO-8859-1");
+ return QTextCodec::codecForName(qPrintable(content_type.value("charset")));
+}
+
+/** Convert <b>po</b> from the PO format to a NSIS-formatted .nsh document.
+ * <b>nsh</b> will be set to the resulting .nsh document. Return the number of
+ * converted strings on success, or -1 on error and <b>errorMessage</b> will
+ * be set. */
+int
+po2nsh(QTextStream *po, QTextStream *nsh, const QString &language,
+ QString *errorMessage)
+{
+ QString line;
+ QString msgctxt, msgid, msgstr;
+ QHash<QString,QString> header;
+ QTextCodec *codec;
+ int n_strings = 0;
+
+ Q_ASSERT(po);
+ Q_ASSERT(nsh);
+ Q_ASSERT(errorMessage);
+
+ /* Parse the text encoding from the header */
+ header = parse_po_header(po);
+ codec = parse_charset(header);
+ if (!codec) {
+ *errorMessage = "Unable to parse valid text encoding.";
+ return -1;
+ }
+ po->setCodec(codec);
+ nsh->setCodec(codec);
+
+ line = read_next_line(po);
+ while (!po->atEnd()) {
+ /* Ignore all "#" lines except "#:" */
+ while (line.startsWith("#")) {
+ if (line.startsWith("#:")) {
+ /* Context was specified with the stupid overloaded "#:" syntax.*/
+ msgctxt = line.section(" ", 1);
+ msgctxt = parse_message_context_lame(msgctxt);
+ }
+ line = read_next_line(po);
+ }
+
+ /* A context specified on a "msgctxt" line takes precedence over a context
+ * specified using the overload "#:" notation. */
+ if (line.startsWith("msgctxt ")) {
+ msgctxt = line.section(" ", 1);
+ msgctxt = parse_message_context(msgctxt);
+ line = read_next_line(po);
+ }
+
+ /* Parse the (possibly multiline) message source string */
+ if (!line.startsWith("msgid ")) {
+ *errorMessage = "expected 'msgid' line";
+ return -1;
+ }
+ msgid = line.section(" ", 1);
+
+ line = read_next_line(po);
+ while (line.startsWith("\"")) {
+ msgid.append(line);
+ line = read_next_line(po);
+ }
+ msgid = parse_message_string(msgid);
+
+ /* Parse the (possibly multiline) translated string */
+ if (!line.startsWith("msgstr ")) {
+ *errorMessage = "expected 'msgstr' line";
+ return -1;
+ }
+ msgstr = line.section(" ", 1);
+
+ line = read_next_line(po);
+ while (line.startsWith("\"")) {
+ msgstr.append(line);
+ line = read_next_line(po);
+ }
+ msgstr = parse_message_string(msgstr);
+
+ /* Add the message translation to the .nsh document */
+ *nsh << QString("LangString ") << msgctxt
+ << QString(" ${LANG_%1} ").arg(language);
+ if (msgstr.isEmpty())
+ *nsh << "\"" << msgid << "\"";
+ else
+ *nsh << "\"" << msgstr << "\"";
+ *nsh << "\n";
+
+ n_strings++;
+ }
+ return n_strings;
+}
+
+/** Display application usage and exit. */
+void
+print_usage_and_exit()
+{
+ QTextStream error(stderr);
+ error << "usage: po2nsh [-q] -i <infile.po> -o <outfile.nsh> "
+ "-l <language>\n";
+ error << " -q (optional) Quiet mode (errors are still displayed)\n";
+ error << " -i <infile.po> Input .po file\n";
+ error << " -o <outfile.nsh> Output .nsh file\n";
+ error << " -l <language> NSIS language table name\n";
+ error.flush();
+ exit(1);
+}
+
+int
+main(int argc, char *argv[])
+{
+ QTextStream error(stderr);
+ QString nshString, language;
+ QString errorMessage;
+ char *infile, *outfile;
+ bool quiet = false;
+
+ /* Check for the correct number of input parameters. */
+ if (argc < 7 || argc > 8)
+ print_usage_and_exit();
+ for (int i = 1; i < argc; i++) {
+ QString arg(argv[i]);
+ if (!arg.compare("-q", Qt::CaseInsensitive))
+ quiet = true;
+ else if (!arg.compare("-i", Qt::CaseInsensitive) && ++i < argc)
+ infile = argv[i];
+ else if (!arg.compare("-o", Qt::CaseInsensitive) && ++i < argc)
+ outfile = argv[i];
+ else if (!arg.compare("-l", Qt::CaseInsensitive) && ++i < argc)
+ language = QString(argv[i]).toUpper();
+ else
+ print_usage_and_exit();
+ }
+
+ /* Open the input PO file for reading. */
+ QFile poFile(infile);
+ if (!poFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+ error << QString("Unable to open '%1' for reading: %2\n").arg(infile)
+ .arg(poFile.errorString());
+ return 2;
+ }
+
+ QTextStream po(&poFile);
+ QTextStream nsh(&nshString);
+ int n_strings = po2nsh(&po, &nsh, language, &errorMessage);
+ if (n_strings < 0) {
+ error << QString("Unable to convert '%1': %2\n").arg(infile)
+ .arg(errorMessage);
+ return 3;
+ }
+
+ /* Open the NSH file for writing. */
+ QFile nshFile(outfile);
+ if (!nshFile.open(QIODevice::WriteOnly | QIODevice::Text)) {
+ error << QString("Unable to open '%1' for writing: %2\n").arg(outfile)
+ .arg(nshFile.errorString());
+ return 4;
+ }
+
+ /* Finally write the .nsh output. */
+ QTextStream out(&nshFile);
+ out.setCodec(nsh.codec());
+ out << nshString;
+
+ if (!quiet) {
+ QTextStream results(stdout);
+ results << QString("Converted %1 strings from %2 to %3.\n").arg(n_strings)
+ .arg(infile)
+ .arg(outfile);
+ }
+ return 0;
+}
+
Property changes on: vidalia/trunk/src/tools/po2nsh/po2nsh.cpp
___________________________________________________________________
Name: svn:keywords
+ Id
Name: svn:eol-style
+ native