Voicefile generation: implement string corrections.

Voicefile generation now can correct strings for the TTS system similar
to what voice.pl does. The current implementation has some limitations:
- only implemented for voicefile creation.
- the corrections file is built in and can't get changed.
- string corrections can be disabled in the configuration dialog.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30628 a1c6a512-1295-4272-9138-f99709370657

rbutil/rbutilqt/base/talkgenerator.h

@@ -67,11 +67,13 @@ public:
 
     TalkGenerator(QObject* parent);
     Status process(QList<TalkEntry>* list,int wavtrimth = -1);
+    QString correctString(QString s);
 
 public slots:
     void abort();
     void encProgress(int value);
     void ttsProgress(int value);
+    void setLang(QString name);
 
 signals:
     void done(bool);
@@ -95,6 +97,15 @@ private:
 
     bool m_ttsWarnings;
     bool m_userAborted;
+    QString m_lang;
+
+    struct CorrectionItems
+    {
+        QString search;
+        QString replace;
+        QString modifier;
+    };
+    QList<struct CorrectionItems> m_corrections;
 };