i18n: Add support for context in translations.

This change means there can now be different translations for the same
english string depending on the context. It is based on gettext msgctxt feature.
There is a new macro _c(msg, ctxt) that should be used instead of _(msg) in
the source code when we want to add a context to the message. For the
moment I have added contexts to only one message ("None") so that I could
test the changes. Context could be added also to get shorter translations when
GUI is in 1x mode.

I have also added back the fuzzy option to msmerge since it is useful when
adding contexts to populate the translations for the new contexts.

svn-id: r52308

1 files changed, 5 insertions, 3 deletions

diff --git a/tools/create_translations/create_translations.cpp b/tools/create_translations/create_translations.cpp
index af7dd02f82..fab35cdfd5 100644
--- a/tools/create_translations/create_translations.cpp
+++ b/tools/create_translations/create_translations.cpp
@@ -35,7 +35,7 @@
 #include "create_translations.h"
 #include "po_parser.h"
 
-#define TRANSLATIONS_DAT_VER 1	// 1 byte
+#define TRANSLATIONS_DAT_VER 2	// 1 byte
 
 // Padding buffer (filled with 0) used if we want to aligned writes
 // static uint8 padBuf[DATAALIGNMENT];
@@ -125,7 +125,6 @@ int main(int argc, char *argv[]) {
 	//   ...
 	
 	// Write length for translation description
-	// Each description
 	len = 0;
 	for (lang = 0; lang < numLangs; lang++) {
 		len += stringSize(translations[lang]->language());
@@ -147,8 +146,10 @@ int main(int argc, char *argv[]) {
 	// the string size (two bytes for the number of chars and the string itself).
 	for (lang = 0; lang < numLangs; lang++) {
 		len = 2 + stringSize(translations[lang]->charset());
-		for (i = 0; i < translations[lang]->size(); ++i)
+		for (i = 0; i < translations[lang]->size(); ++i) {
 			len += 2 + stringSize(translations[lang]->entry(i)->msgstr);
+			len += stringSize(translations[lang]->entry(i)->msgctxt);
+		}
 		writeUint16BE(outFile, len);
 	}
 
@@ -171,6 +172,7 @@ int main(int argc, char *argv[]) {
 		for (i = 0; i < translations[lang]->size(); ++i) {
 			writeUint16BE(outFile, messageIds.findIndex(translations[lang]->entry(i)->msgid));
 			writeString(outFile, translations[lang]->entry(i)->msgstr);
+			writeString(outFile, translations[lang]->entry(i)->msgctxt);
 		}
 	}