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081970
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3.46 trunk/Translations

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3.46.1 Goals

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The <tt>`trunk/Translations'</tt> directory exists to:

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  • Organize translation files.
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  • Organize translation templates used to produce translation files.
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    3.46.2 Description

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    When you create artwork for CentOS distribution you find that some

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    artworks need to be created for different major releases of CentOS
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    distribution and inside each major release they need to be created for
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    different locales. To get an approximate idea of how many files we are
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    talking about, consider the followig approximate statistic:
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    • Inside CentOS distribution, there are around 30 images to
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      rebrand.(2)
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    • There are near to four major releases of CentOS distribution to
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      rebrand in parallel development.(3) 
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    • Each CentOS distribution in parallel development supports more
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      than two hundreds locales.(4)
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      In order to aliviate maintainance of artwork production for such

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      environment, we divided artwork production in three production lines:
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      1. See section trunk/Identity/Themes/Models, to define artworks
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        characteristics (e.g., dimensions, position on the screen, etc.).
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      3. See section trunk/Identity/Themes/Motifs, to define artworks visual
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        styles (e.g., the look and feel).
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      5. Translations, to define which major releases and locales
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        artworks are produced for. 
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        Inside CentOS Artwork Repository, the artworks' translation production

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        line is stored under <tt>`trunk/Translations'</tt> directory.
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        Inside <tt>`trunk/Translations'</tt> directory, we use "translation

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        entries" to organize artworks' "translation files" and artworks'
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        "translation templates".
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        3.46.2.1 Translation Entries

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        Translation entries exists for each artwork you want to produce.

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        Translation entries can be empty directories, or directories
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        containing translation files and translation templates.  
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        When translation entries are empty directories, the identity entry is

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        used as reference to create file names and directories layout for
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        rendered files.  In this case, the centos-art script takes
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        one design template and outputs one non-translated file for each
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        design template available.  This configuration is mainly used to
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        produce non-translatable artworks like themes' backgrounds.
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        When translation entries contain translation files, the translation

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        entry implements the CentOS release schema and is used as reference to
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        create file names and directories layout for translated artworks. In
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        this case, the centos-art script applies one translation
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        file to one design template to create one translated instance which is
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        used to output one translated file. When the translated file is
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        rendered, the centos-art script remove the previous instance
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        and takes the next file in the list of translation files to repate the
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        whole process once again, and so on for all files in the list. This
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        configuration is mainly used to produce translatable artworks like
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        Anaconda's progress slide images.
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        To find out correspondence between translation entries and identity

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        entries, you need to look the path of both translation entries and
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        identity entries. For example, if you are using the Modern's artisitic
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        motif, the identity entry for Anaconda progress artwork is:
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        trunk/Identity/Themes/Motifs/Modern/Distro/Anaconda/Progress
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        and its translation entry is:

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        trunk/Translations/Identity/Themes/Distro/Anaconda/Progress
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        Note how the <tt>`Translations/'</tt> directory prefixes <tt>`Identity/'</tt>

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        directory, also how static values (e.g., Identity, Themes, Distro,
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        etc.) in the identity's entry path remain in translation's entry path,
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        and how variable values like theme names (e.g., Modern) are stript out
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        from translation's entry path. The same convenction can be applied to
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        other identity entries in order to determine their translation
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        entries, or to other translation entries to determine their identity
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        entries.
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        info

        Note

        Translation entries related to identity entries under

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        <tt>`trunk/Identity/Themes/Motifs'</tt> do not use <tt>`Motifs/'</tt> in the
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        path.  We've done this because <tt>`trunk/Identity/Themes/Models'</tt>
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        structure, the other structure under <tt>`trunk/Identity/Themes'</tt>,
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        doesn't require translation paths so far. So in the sake of saving
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        characters space when building translation entries for
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        <tt>`trunk/Identity/Themes/Motifs'</tt> structure, we organize Motifs
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        translation entries under <tt>`trunk/Translations/Identity/Themes/'</tt>
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        directly. 
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        If for some reason <tt>`trunk/Identity/Themes/Models'</tt> structure

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        requires translation entries, we need to re-oraganize the current
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        directory structure accordingly.
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        Translation entries, as described above, can be re-used by similar

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        identity entries. For example the following identity entries:
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        trunk/Identity/Themes/Motifs/Modern/Distro/Anaconda/Progress/
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        trunk/Identity/Themes/Motifs/TreeFlower/Distro/Anaconda/Progress/
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        trunk/Identity/Themes/Motifs/Mettle/Distro/Anaconda/Progress/
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        are all valid identity entries able to re-use translation files inside

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        Anaconda progress translation entry (the one shown in our example
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        above). This way, you can create several identity entries and maintain
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        just one translation entry for all of them.  Once you change the
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        translation files inside the common translation entry, changes inside
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        identity entries will take effect inside the next you render them.
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        Trying to make things plain and simple: inside CentOS Artwork

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        Repository, graphic designers can concentrate their efforts in
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        artworks look and feel (the identity entries), and translators in
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        artworks translations (the translation entries).
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        3.46.2.2 Translation Markers

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        Translation markers are used in "Theme Model Designs" and

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        "Translation Files" as replacement patterns to commit content
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        translation.  When you are rendering content using
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        centos-art script inisde <tt>`trunk/Identity'</tt> structure,
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        artistic motifs and translation files are applied to model designs to
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        produce translated content as result. In order to have the appropriate
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        translation in content rendered, markers defintion in translation
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        files should match markers in model designs exactly. 
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        Translation Markers

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        Figure 3.6: The image rendering flow.

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        Translation markers can be whatever text you want, but as convenction

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        we use the following to represent releases of CentOS distribution:
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        <samp>`=MINOR_RELEASE='</samp>
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        Replace with minor release of CentOS distribution. In the schema M.N, the minor

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        release is represented by the N letter.
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        <samp>`=MAJOR_RELEASE='</samp>
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        Replace with major release of CentOS distribution. In the schema M.N,

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        the major release is represented by the M letter.
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        <samp>`=RELEASE='</samp>
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        Replace the full release of CentOS distribution. It is

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        <samp>`=MAJOR_RELEASE=.=MINOR_RELEASE='</samp> basically. 
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        Specific translation markers convenctions are described inside

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        specific translation entries. Read translation entries documentation
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        to know more about supported translation markers.
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        Translation markers standardization creates a common point of

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        reference for translators and graphic designers. To have translation
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        markers well defined makes possible that translators and graphic
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        designers can work together but independently one another.
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        3.46.2.3 Translation Files

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        Translation files are text files with sed's commands inside,

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        replacement commands mainly. As convenction, translation file names
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        end in <samp>`.sed'</samp>. Translation files are used by centos-art
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        script to produce translated artworks for specific major releases of
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        CentOS Distribution. There are common translation files, specific
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        translation, and template translation files.
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        For example, the Firstboot artwork of CentOS distribution uses the

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        images <tt>`splash-small.png'</tt> and <tt>`firstboot-left.png'</tt> as based
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        to control its visual style. The <tt>`splash-small.png'</tt> image
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        contains, in its graphic design, the release number information of
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        CentOS distribution. So the <tt>`splash-small.png'</tt> is
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        release-specific. In the other hand, the <tt>`firstboot-left.png'</tt>
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        doesn't contain release number information. So the
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        <tt>`firstboot-left.png'</tt> is not release-specific.
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        If we want to produce Firstboot artwork for different major releases

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        of CentOS distribution, using a monolithic visual identity, all
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        Firstboot images should have the same visual style and, at the same
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        time, the release-specific information in the release-specific images. 
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        info

        Note

        The monolithic visual identity is implemented using

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        theme models (see section trunk/Identity/Themes/Models) and artistic
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        motifs (see section trunk/Identity/Themes/Motifs).
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        Assuming that both theme models and theme motifs are ready for using,

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        the initial translation entry to produce Firstboot artworks would look
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        like the following:
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        trunk/Translations/Identity/Themes/Distro/BootUp/Firstboot/
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        |-- Tpl
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        |   `-- splash-small.sed
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        `-- firstboot-left.sed
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        With the translation entry above, centos-art command is able

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        to produce the image <tt>`firstboot-left.png'</tt> only. To produce
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        <tt>`splash-small.png'</tt> images for major releases (e.g., 3, 4, 5, and
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        6) of CentOS distribution we need to produce the release-specific
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        translation files using the centos-art script as following:
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        centos-art render --translation=/home/centos/artwork/trunk/Translations/Identity/Themes/BootUp/Firstboot --filter='3,4,5,6'
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        The above command produces the following translation entiry:

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        trunk/Translations/Identity/Themes/Distro/BootUp/Firstboot/
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        |-- 3
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        |   `-- splash-small.sed
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        |-- 4
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        |   `-- splash-small.sed
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        |-- 5
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        |   `-- splash-small.sed
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        |-- 6
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        |   `-- splash-small.sed
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        |-- Tpl
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        |   `-- splash-small.sed
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        `-- firstboot-left.sed
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        At this point centos-art is able to produce the Firstboot

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        artwork images for major releases of CentOS distribution. To add new
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        release-specific translation files, run the translation rendering
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        command with the release number you want to produce translation files
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        for in the <samp>`--filter='release-number''</samp> argument.
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        3.46.2.4 Template Translation Files

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        Template translation files are translation files stored inside

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        translation template directory. Template translation files are used by
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        centos-art script to produce specific translation files
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        only. Template translation files may be empty or contain
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        sed's replacement commands. If template translation files
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        are empty files, the final specifc translation file built from it
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        contains release-specific replacement commands only. For example,
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        see the following translation entry:
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        trunk/Translations/Identity/Themes/Distro/BootUp/Firstboot/
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        |-- 3
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        |   `-- splash-small.sed
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        |-- 4
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        |   `-- splash-small.sed
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        |-- 5
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        |   `-- splash-small.sed
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        |-- 6
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        |   `-- splash-small.sed
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        |-- Tpl
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        |   `-- splash-small.sed    <-- template translation file.
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        `-- firstboot-left.sed
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        In the above exmaple, the <tt>`splash-small.sed'</tt> file is a template

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        translation file and looks like:
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        # -------------------------------------
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        # $Id: Translations.texi 94 2010-09-18 10:59:42Z al $
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        # -------------------------------------
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        In the above template translation file there are three comments lines,

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        but when you render it, the centos-art adds the
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        release-specific replacement commands. In our Firstboot example, after
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        rendering Firstboot translation entry, the <tt>`splash-small.sed'</tt>
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        translation file specific to CentOS 5, looks like the following:
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        # Warning: Do not modify this file directly. This file is created
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        # automatically using 'centos-art' command line interface.  Any change
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        # you do in this file will be lost the next time you update
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        # translation files using 'centos-art' command line interface. If you
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        # want to improve the content of this translation file, improve its
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        # template file instead and run the 'centos-art' command line
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        # interface later to propagate your changes.
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        # -------------------------------------
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        # $Id: Translations.texi 94 2010-09-18 10:59:42Z al $
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        # -------------------------------------
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        # Release number information.
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        s!=RELEASE=!=MAJOR_RELEASE=.=MINOR_RELEASE=!g
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        s!=MINOR_RELEASE=!0!g
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        s!=MAJOR_RELEASE=!5!g
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        If template translation files are not empty, replacement commands

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        inside template translation files are preserved inside
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        release-specific translation files.  For example, consider the English
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        template translation file of Anaconda progress welcome slide.  The
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        translation template directory structure looks like the following:
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        trunk/Translations/Identity/Themes/Distro/Anaconda/Progress/
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        `-- Tpl
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            `-- en
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                `-- 01-welcome.sed
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        and if we render translation files for CentOS 4 and CentOS 5 major

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        releases, the translation entry would look like the following:
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        trunk/Translations/Identity/Themes/Distro/Anaconda/Progress/
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        |-- 4
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        |   `-- en
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        |       `-- 01-welcome.sed
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        |-- 5
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        |   `-- en
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        |       `-- 01-welcome.sed
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        `-- Tpl
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            `-- en
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                `-- 01-welcome.sed
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        info

        Note

        Release-specific translation directories preserve

        081970
        template translation directory structure and file names.
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        In the example above, the template translation file looks like the

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        following:
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        # ------------------------------------------------------------
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        # $Id: Translations.texi 94 2010-09-18 10:59:42Z al $
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        # ------------------------------------------------------------
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        s/=TITLE=/Welcome to CentOS =MAJOR_RELEASE= !/
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        s/=TEXT1=/Thank you for installing CentOS =MAJOR_RELEASE=./
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        s/=TEXT2=/CentOS is an enterprise-class Linux Distribution derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor./
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        s/=TEXT3=/CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible. CentOS mainly changes packages to remove upstream vendor branding and artwork./
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        s/=TEXT4=//
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        s/=TEXT5=//
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        s/=TEXT6=//
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        s!=URL=!http://www.centos.org/!
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        and, after render the translation entry, specific translation files

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        look like the following:
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        # Warning: Do not modify this file directly. This file is created
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        # automatically using 'centos-art' command line interface.  Any change
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        # you do in this file will be lost the next time you update
        081970
        # translation files using 'centos-art' command line interface. If you
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        # want to improve the content of this translation file, improve its
        081970
        # template file instead and run the 'centos-art' command line
        081970
        # interface later to propagate your changes.
        081970
        # ------------------------------------------------------------
        081970
        # $Id: Translations.texi 94 2010-09-18 10:59:42Z al $
        081970
        # ------------------------------------------------------------
        081970
        081970
        s/=TITLE=/Welcome to CentOS =MAJOR_RELEASE= !/
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        s/=TEXT1=/Thank you for installing CentOS =MAJOR_RELEASE=./
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        s/=TEXT2=/CentOS is an enterprise-class Linux Distribution derived from sources freely provided to the public by a prominen t North American Enterprise Linux vendor./
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        s/=TEXT3=/CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible. Cent OS mainly changes packages to remove upstream vendor branding and artwork./
        081970
        s/=TEXT4=//
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        s/=TEXT5=//
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        s/=TEXT6=//
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        s!=URL=!http://www.centos.org/!
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        # Release number information.
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        s!=RELEASE=!=MAJOR_RELEASE=.=MINOR_RELEASE=!g
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        s!=MINOR_RELEASE=!0!g
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        s!=MAJOR_RELEASE=!5!g
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        In the example above, relevant lines begin with the <samp>`s'</samp> word

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        followed by a separation character (e.g., <samp>`/'</samp>, <samp>`!'</samp>, etc.).
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        These lines have the following format:
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        s/REGEXP/REPLACEMENT/FLAGS
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        The <samp>`/'</samp> characters may be uniformly replaced by any other single

        081970
        character within any given s command.  The <samp>`/'</samp>
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        character (or whatever other character is used in its stead) can
        081970
        appear in the REGEXP or REPLACEMENT only if it is preceded by a
        081970
        <samp>`\'</samp> character.
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        The s command is probably the most important in

        081970
        sed and has a lot of different options.  Its basic concept
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        is simple: the s command attempts to match the pattern space
        081970
        against the supplied REGEXP; if the match is successful, then that
        081970
        portion of the pattern space which was matched is replaced with
        081970
        REPLACEMENT.
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        In the context of our translation files, the REGEXP is where you

        081970
        define translation markers and REPLACEMENT where you define the
        081970
        translation text you want to have after artworks rendering.  Sometimes
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        we use the FLAG component with the <samp>`g'</samp> command to apply the
        081970
        replacements globally.
        081970

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        Info

        Tip

        More information about how to use sed's

        081970
        replacement commands and flags is available in sed's
        081970
        documentation manual. To read sed's documentation manual type the
        081970
        following command: 
        081970

        info sed
        081970
        081970
        081970

        Inside translation files, you can use translation markers not only

        081970
        inside the REGEXP but in the REPLACEMENT too. In order for this
        081970
        configuration to work, the REPLACEMENT of translation markers needs to
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        be define after its definition. For example, see in the
        081970
        release-specific translation file above, how the
        081970
        <samp>`s!=MAJOR_RELASE=!5!g'</samp> replacement command is defined
        081970
        after <samp>`=MAJOR_RELASE='</samp> translation marker definition in
        081970
        the REPLACEMENT of <samp>`=TITLE='</samp> translation marker replacement
        081970
        command.
        081970

        081970
        081970
        081970

        3.46.2.5 Common Translation Files

        081970
        081970

        Common translation files contain common translations or no

        081970
        translation at all for their related artworks.  They are in the root
        081970
        directory of the translation entry. Common translation files create
        081970
        common artworks for all major releases of CentOS Distribution. 
        081970

        081970

        Translation entries, with common translation files inside, look like

        081970
        the following:
        081970

        081970
        trunk/Translations/Identity/Themes/Distro/BootUp/Firstboot/
        081970
        |-- 3
        081970
        |   `-- splash-small.sed
        081970
        |-- 4
        081970
        |   `-- splash-small.sed
        081970
        |-- 5
        081970
        |   `-- splash-small.sed
        081970
        |-- 6
        081970
        |   `-- splash-small.sed
        081970
        |-- Tpl
        081970
        |   `-- splash-small.sed
        081970
        `-- firstboot-left.sed      <-- common translation file.
        081970
        081970
        081970
        081970

        3.46.2.6 Specific Translation Files

        081970
        081970

        Specific translation files contain specific translations for their

        081970
        related artworks. Specific translation files are not in the root
        081970
        directory of the translation entry, but inside directories which
        081970
        describe the type of translation they are doing. Specific translation
        081970
        files are produced automatically using the centos-art
        081970
        script.
        081970

        081970
        trunk/Translations/Identity/Themes/Distro/BootUp/Firstboot/
        081970
        |-- 3
        081970
        |   `-- splash-small.sed    <-- CentOS 3 specific translation file.
        081970
        |-- 4
        081970
        |   `-- splash-small.sed    <-- CentOS 4 specific translation file.
        081970
        |-- 5
        081970
        |   `-- splash-small.sed    <-- CentOS 5 specific translation file.
        081970
        |-- 6
        081970
        |   `-- splash-small.sed    <-- CentOS 6 specific translation file.
        081970
        |-- Tpl
        081970
        |   `-- splash-small.sed
        081970
        `-- firstboot-left.sed
        081970
        081970
        081970
        081970

        3.46.2.7 Translation Rendering

        081970
        081970

        When rendering translations, the centos-art script checks

        081970
        the translation entry to verify that it has a translation template
        081970
        directory inside. The translation template directory (<tt>`Tpl/'</tt>)
        081970
        contains common translation files used to build release-specific
        081970
        translation files. If the translation template directory doesn't exist
        081970
        inside the translation entry the translation rendering fails. In this
        081970
        case the centos-art script outputs a message and quits
        081970
        script execution.
        081970

        081970
        081970
        081970

        3.46.2.8 Translation (Pre-)Rendering Configuration Scripts

        081970
        081970

        When the centos-art script finds a translation template

        081970
        directory inside translation entry, it looks for translations
        081970
        pre-rendering configuration scripts for that translation entry.
        081970
        Translation pre-rendering configuration scripts let you extend
        081970
        translation's default functionality (described below). 
        081970

        081970

        Translation pre-rendering configuration scripts are stored under

        081970
        <tt>`trunk/Scripts'</tt> directory, specifically under the appropriate
        081970
        language implementation. If you are using centos-art Bash's
        081970
        implementation, the translation pre-rendering scripts are store in the
        081970
        <tt>`trunk/Scripts/Bash/Config'</tt> location; if you are using
        081970
        centos-art Python's implementation, then translation
        081970
        pre-rendering scripts are stored in the
        081970
        <tt>`trunk/Scripts/Python/Config'</tt> location, and so on for other
        081970
        implementations.
        081970

        081970

        Bash's translation pre-rendering configuration scripts look like the

        081970
        following:
        081970

        081970
        #!/bin/bash
        081970
        #
        081970
        # loadConfiguration.sh -- brief description here.
        081970
        #
        081970
        # Copyright (C) YEAR YOURNAME
        081970
        # 
        081970
        # This program is free software; you can redistribute it and/or modify
        081970
        # it under the terms of the GNU General Public License as published by
        081970
        # the Free Software Foundation; either version 2 of the License, or
        081970
        # (at your option) any later version.
        081970
        # 
        081970
        # This program is distributed in the hope that it will be useful, but
        081970
        # WITHOUT ANY WARRANTY; without even the implied warranty of
        081970
        # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        081970
        # General Public License for more details.
        081970
        #
        081970
        # You should have received a copy of the GNU General Public License
        081970
        # along with this program; if not, write to the Free Software
        081970
        # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
        081970
        # USA.
        081970
        # 
        081970
        # ----------------------------------------------------------------------
        081970
        # $Id: Translations.texi 94 2010-09-18 10:59:42Z al $
        081970
        # ----------------------------------------------------------------------
        081970
        081970
        function loadConfiguration {
        081970
        ...
        081970
        }
        081970
        081970

        Translation pre-rendering scripts are function scripts loaded and

        081970
        executed when rendering a translation entry. Translation pre-rendering
        081970
        scripts are loaded using the translation entry being rendered as
        081970
        reference. For example, suppose you are using the
        081970
        centos-art Bash's implementation, and you are rendering
        081970
        translations for CentOS brands, in this situation the translation
        081970
        entry would be:
        081970

        081970
        trunk/Translations/Identity/Brands
        081970
        081970

        and the entry inside the translation pre-rendering configuration

        081970
        structure would be:
        081970

        081970
        trunk/Scripts/Bash/Config/Identity/Brands
        081970
        081970

        Once the centos-art script detects that translation

        081970
        pre-rendering configuration directory exists, the centos-art
        081970
        script looks for the translation pre-rendering configuration file.  If
        081970
        the translation pre-rendering configuration file exists, it is loaded
        081970
        and executed.  Once the translation pre-rendering configuration file
        081970
        has been executed the translation rendering process is over, and so
        081970
        the script execution.
        081970

        081970
        info

        Note

        Translation pre-rendering configuration files have the

        081970
        following form:
        081970

        render.conf.extension
        081970

        where <samp>`extension'</samp> refers the programming language implementation

        081970
        you are using. For example, <samp>`sh'</samp> for Bash's, <samp>`py'</samp> for
        081970
        Python's, <samp>`pl'</samp> for Perl's, and so on for other implementations.
        081970

        081970
        081970

        As we are using Bash implementation to describe the translation

        081970
        pre-rendering configuration example, the translation pre-rendering
        081970
        configuration file that centos-art looks for, inside the
        081970
        above translation pre-rendering configuration directory, is
        081970
        <tt>`render.conf.sh'</tt>.
        081970

        081970
        081970
        081970

        3.46.2.9 Translation Rendering Default Functionality

        081970
        081970

        In the other hand, if the translation pre-rendering configuration file

        081970
        doesn't exist, or it isn't written as function script, the
        081970
        centos-art script ignore translation pre-rendering
        081970
        configuration functionality and passes to render translation using
        081970
        default functionality instead.
        081970

        081970

        The translation rendering default functionality takes template

        081970
        translation directory structure, duplicates it for each release number
        081970
        specified in the <samp>`--filter='release-number''</samp> argument and
        081970
        produces release-specific directories. As part of template translation
        081970
        duplication process take place, the centos-art script adds
        081970
        release-specific replacement commands to each specific translation
        081970
        file inside release-specific directories. As result, specific
        081970
        translation files, inside release-specific directories, contain
        081970
        template translation replacement commands plus,
        081970
        release-specific replacement commands.
        081970

        081970
        info

        Note

        Release-specific replacement commands are standardized

        081970
        inside centos-art script using predifined release
        081970
        translation markers. Release translation markers are described in the
        081970
        translation marker section
        081970
        (see Translation Markers).
        081970

        081970
        081970
        081970
        081970
        081970

        3.46.3 Usage

        081970
        081970
        081970
        <samp>`centos-art render 'path/to/dir''</samp>
        081970
        081970

        When <samp>`path/to/dir'</samp> refers one directory under

        081970
        <samp>`trunk/Translations'</samp>, this command orverwrites available
        081970
        translation files using translation templates.
        081970

        081970
        081970
        <samp>`centos-art render 'path/to/dir' --filter='pattern''</samp>
        081970
        081970

        When <samp>`path/to/dir'</samp> refers one directory under

        081970
        <tt>`trunk/Translations'</tt>, this command renders release-specific
        081970
        translation files as you specify in the <samp>`--filter='pattern''</samp>
        081970
        argument. In this case, <samp>`pattern'</samp> not a regular expression but an
        081970
        number (e.g., <samp>`5'</samp>) or a list of numbers separated by commas
        081970
        (e.g., <samp>`3,4,5,6'</samp>) that specify the major release of CentOS
        081970
        distribution you want to render translations for.  
        081970

        081970
        081970
        081970
        081970
        081970
        4c79b5

        3.46.4 See also

        4c79b5
        081970
        081970
        3.48 trunk/Translations/Identity/Brands  
        081970
        081970
        3.50 trunk/Translations/Identity/Fonts  
        081970
        081970
        3.51 trunk/Translations/Identity/Models  
        081970
        081970
        3.52 trunk/Translations/Identity/Release  
        081970
        081970
        3.53 trunk/Translations/Identity/Themes  
        081970
        081970
        3.1 trunk/Identity  
        081970
        081970
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        081970
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