* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
+ * \author Jean-Marc Lasgouttes
*
* Full author contact details are available in file CREDITS.
*/
/*
- This is a limited parser for gettext's po files. Several features are
- not handled for now:
- * encoding is supposed to be UTF-8 (the charset parameter is not honored)
+ This contains a limited parser for gettext's mo files. Several features are
+ not implemented currently:
+ * encoding is supposed to be UTF-8 (the charset parameter is enforced)
* context is not handled (implemented differently in LyX)
- * plural forms not implemented (not used for now in LyX).
- * The byte endianness of the machine on which the .mo file have been
- built is expected to be the same as the one of the machine where this
- code is run.
+ * plural forms are not implemented (not used for now in LyX).
The data is loaded in a std::map object for simplicity.
*/
#include <cerrno>
#include <fstream>
+#include <utility>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
Some english words have different translations, depending on
context. In these cases the original string is augmented by
context information (e.g. "To:[[as in 'From page x to page
- y']]" and "To:[[as in 'From format x to format y']]". Also,
+ y']]" and "To:[[as in 'From format x to format y']]". Also,
when placeholders are used, the context can indicate what will
be substituted for the placeholder (e.g. "%1$s[[date]], %1$s
- [[time]]). This means that we need to filter out everything
+ [[time]]). This means that we need to filter out everything
in double square brackets at the end of the string, otherwise
the user sees bogus messages. If we are unable to honour the
request we just return what we got in.
}
}
-} // lyx
+} // namespace lyx
#ifdef ENABLE_NLS
std::string Messages::gui_lang_;
-// This version use the traditional gettext.
Messages::Messages(string const & l)
: lang_(l)
{
namespace {
-string moFile(string const & c)
-{
- static string const locale_dir
- = package().locale_dir().toFilesystemEncoding();
- return locale_dir + "/" + c
- + "/LC_MESSAGES/" PACKAGE ".mo";
-}
-
-
// Find the code we have for a given language code. Return empty if not found.
-string realCode(string const & c)
+string realCode(string code)
{
- // Qt tries to outsmart us and transforms en_US to C.
- string code = (c == "C") ? "en" : c;
// this loops at most twice
while (true) {
- if (FileName(moFile(code)).isReadableFile())
+ if (package().messages_file(code).isReadableFile())
return code;
if (contains(code, '_'))
code = token(code, '_', 0);
}
return string();
}
-}
+} // namespace
bool Messages::available(string const & c)
return realCode(lang_);
}
+namespace {
+
+void swapInt(uint32_t & number)
+{
+ unsigned char * num_ar = reinterpret_cast<unsigned char *>(&number);
+ swap(num_ar[0], num_ar[3]);
+ swap(num_ar[1], num_ar[2]);
+}
+
struct MoHeader
{
uint32_t O;
// offset of table with translation strings
uint32_t T;
- // there is a hashing table afterwrds, but we ignore it
+ // there is a hash table afterwards, but we ignore it
+
+ // Change the endianness of header data
+ void swapEnd();
};
+void MoHeader::swapEnd()
+{
+ swapInt(magic);
+ swapInt(rev);
+ swapInt(N);
+ swapInt(O);
+ swapInt(T);
+}
+
struct StringTable
{
// string length
uint32_t length;
// string offset
uint32_t offset;
+
+ // Change the endianness of string stable data
+ void swapEnd();
};
+void StringTable::swapEnd()
+{
+ swapInt(length);
+ swapInt(offset);
+}
+
+
+} // namespace
+
bool Messages::readMoFile()
{
// FIXME:remove
string const code = realCode(lang_);
if (code.empty()) {
- LYXERR0("Cannot find translation for language " << lang_);
+ LYXERR(Debug::LOCALE, "Cannot find translation for language " << lang_);
return false;
}
- string const filen = moFile(code);
+ string const filen = package().messages_file(code).toSafeFilesystemEncoding();
// get file size
struct stat buf;
return false;
}
- MoHeader const * header = reinterpret_cast<MoHeader const *>(&moData[0]);
+ MoHeader * header = reinterpret_cast<MoHeader *>(&moData[0]);
+
+ bool doSwap = false;
+ if (header->magic == 0xde120495) {
+ header->swapEnd();
+ doSwap = true;
+ }
+
if (header->magic != 0x950412de) {
LYXERR0("Wrong magic number for file " << filen
- << ".\nExpected 0x950412de, got " << std::hex << header->magic);
+ << ".\nExpected 0x950412de, got 0x" << std::hex << header->magic << std::dec);
return false;
}
- StringTable const * orig = reinterpret_cast<StringTable const *>(&moData[0] + header->O);
- StringTable const * trans = reinterpret_cast<StringTable const *>(&moData[0] + header->T);
+ StringTable * orig = reinterpret_cast<StringTable *>(&moData[0] + header->O);
+ StringTable * trans = reinterpret_cast<StringTable *>(&moData[0] + header->T);
// First the header
+ if (doSwap) {
+ // Handle endiannness change
+ orig[0].swapEnd();
+ trans[0].swapEnd();
+ }
string const info = string(&moData[0] + trans[0].offset, trans[0].length);
size_t pos = info.find("charset=");
if (pos != string::npos) {
}
for (size_t i = 1; i < header->N; ++i) {
+ if (doSwap) {
+ // Handle endiannness change
+ orig[i].swapEnd();
+ trans[i].swapEnd();
+ }
// Note that in theory the strings may contain NUL characters.
// This may be the case with plural forms
string const ostr(&moData[0] + orig[i].offset, orig[i].length);
namespace lyx {
-Messages::Messages(string const & /* l */) {}
-
-void Messages::init()
-{
-}
+std::string Messages::gui_lang_;
+Messages::Messages(string const & /* l */) {}
docstring const Messages::get(string const & m) const
{
}
std::string Messages::language() const
- {
- return string();
- }
+{
+ return string();
+}
bool Messages::available(string const & /* c */)
{
projects / lyx.git / blobdiff