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    Encodings for localization files

    When creating a localization for Mozilla products, it’s important to be aware of the encoding of the files that you generate.

    In general, files in the Mozilla repositories are UTF-8 encoded. There are a few exceptions, though.

    Installer

    The Windows installer can’t handle UTF-8, but only the codepages provided by Windows. This is tricky to hook up in the build process, so here it goes:

    File Encoding Notes
    toolkit/installer/windows/charset.mk ASCII The WIN_INSTALLER_CHARSET variable must be set to an encoding which matches toolkit/installer/windows/install.it CHARSET= parameter. See the table below for appropriate values.
    toolkit/installer/windows/install.it A Windows codepage. This must match the CHARSET= parameter in this file, and the WIN_INSTALLER_CHARSET parameter in charset.mk The FONTNAME/FONTSIZE/CHARSET parameters in this file must be set to good values. For most Western scripts, ‘MS Sans Serif’ and ‘8’ are good defaults for the font settings. Eastern scripts will need to choose appropriate fonts that are shipped with Windows. See the table below for appropriate values for the CHARSET= parameter.
    browser/installer/installer.inc UTF-8  
    toolkit/installer/unix/install.it UTF-8

    Native Windows encodings

    The following table lists native Windows encodings, and the WIN_INSTALLER_CHARSET and CHARSET= values for each:

    Encoding Name WIN_INSTALLER_CHARSET (charset.mk) CHARSET= (windows/install.it)
    ANSI_CHARSET CP1252 0
    BALTIC_CHARSET CP1257 186
    CHINESEBIG5_CHARSET CP950 136
    EASTEUROPE_CHARSET CP1250 238
    GB2312_CHARSET CP936 134
    GREEK_CHARSET CP1253 161
    HANGUL_CHARSET CP949 129
    RUSSIAN_CHARSET CP1251 204
    SHIFTJIS_CHARSET CP932 128
    TURKISH_CHARSET CP1254 162
    VIETNAMESE_CHARSET CP1258 163
    Middle East language editions of Windows:
    ARABIC_CHARSET CP1256 178
    HEBREW_CHARSET CP1255 177
    Thai language editions of Windows:
    THAI_CHARSET CP874 222

    Document Tags and Contributors

    Contributors to this page: Sheppy, stasm, AxelHecht, sethb@mozilla.com, Mgjbot, Hamaryns
    Last updated by: stasm,