SYNOPSIS
       lupdate [ options ] project-file
       lupdate [ options ] source-files -ts ts-files

DESCRIPTION
       This page documents the Qt Linguist Update tool for the Qt GUI toolkit.
       Lupdate reads a qmake/tmake project file (.pro file), finds the  trans-
       latable  strings  in  the specified source, header and interface files,
       and updates the translation files (.ts  files)  specified  in  it.  The
       translation  files  are given to the translator who uses Qt Linguist to
       read the files and insert the translations.

       The .ts file format is a simple human-readable XML format that  can  be
       used with version control systems if required.

OPTIONS
       -disable-heuristic {sametext|similartext|number}
              Disable  the  named  merge  heuristic. Can be specified multiple
              times.

       -extensions <ext>[,<ext>...]
              Process files with the given  extensions  only.   The  extension
              list  must  be  separated  with  commas,  not  with  whitespace.
              Default: 'ui,c,c++,cc,cpp,cxx,ch,h,h++,hh,hpp,hxx'.

       -help  Display the usage and exit.

       -locations {absolute|relative|none}
              Specify/override how source code  references  are  saved  in  ts
              files.  Default is absolute.

       -no-obsolete
              Drop all obsolete strings.

       -no-recursive
              Do not recursively scan the following directories.

       -no-sort
              Do not sort contexts in .ts files.

       -pluralonly
              Only include plural form messages.

       -pro <filename>
              Name  of a .pro file. Useful for files with .pro file syntax but
              different file suffix

       -recursive
              Recursively scan the following directories.

       -silent
              Don't explain what is being done.


           HEADERS         = funnydialog.h \
                             wackywidget.h
           SOURCES         = funnydialog.cpp \
                             main.cpp \
                             wackywidget.cpp
           FORMS           = fancybox.ui
           TRANSLATIONS    = gnomovision_dk.ts \
                             gnomovision_fi.ts \
                             gnomovision_no.ts \
                             gnomovision_se.ts

       When running lupdate on this project file, the translatable strings  in
       all  the files listed in the HEADERS, SOURCES and FORMS entries will be
       put in the translation files listed in the TRANSLATIONS entry. Previous
       translations  will be reused as far as possible, and translated strings
       that have vanished from the source files are marked obsolete.

       lupdate can also be invoked with a list of C++ source files, .ui  files
       and .ts files:

           lupdate *.cpp *.h *.ui -ts gnomovision_dk.ts

SEE ALSO
       lrelease(1) and http://doc.trolltech.com/i18n.html