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python-clearsilver - Python interface to the ClearSilver HTML templating system…  more info»

README

*********************************
*
* trans.py - language extraction toolkit
*
* - Brandon Long, David Jeske
*

** Getting Started

1) First you need to create a MySQL trans database for your application.

  > mysql -uroot
  mysql> create database trans_data
  mysql> quit
  > mysql -uroot trans_data < trans.sql

2) Then just run trans on the test data to verify that it is working..

  > ./trans.py

   Check out the 'testroot/gen' directory.

3) Then, in your application, make sure your CSPage setup equivilant is
   doing the following:

   1) Make sure "gen/tmpl/<lang>" and "gen/tmpl" are in hdf.loadpaths
      before your template directories. This assures that the load will
      prefer files in the language specific template directory first,
      the language directory second, and your template directories last.

   2) after loading your page-specific HDF file, be sure to 
      load "lang_<lang>.hdf" over the top. This will automatically
      override HDF lang strings with the proper values from the translated
      language files.

4) Configure trans.py in the __init__ function (sorry for the hardcoded
   stuff)

5) When you want to translate into a new language, take the
   'strings_en.hdf' file and copy it to trans_XX.hdf. Translate
   the strings in it, and then run:

   > ./trans.py --lang XX --load trans_XX.hdf
   > ./trans.py

   Each time trans is run, it will dump the list of missing strings for
   every language which has any strings at all. Simply follow the same
   procedure above with the missing strings file to update the
   translation in that language.


** About trans.py

This tools allows you to (mostly) automatically extract language
strings from HTML Clearsilver templates, and from Clearsilver HDF 
files. trans inserts all unique strings into a database, and
provides you facilities for exporting and importing the strings in the
database. trans then creates a 'gen' tree where your source files
reference language strings, and dumps lang_XX.hdf files which
define those strings. 


Two mechanisms are used to find language strings:

1) Any language string present in an HDF file should be marked
   with the [Lang] attribute. For example:

     Menu.Name [Lang] = Start Here
 
   Trans will automatically replace this with a copy reference to
   the lang hash-keyed string in the currently imported language.

     Menu.Name : Lang.L112414

2) Parsing of html attempts to find language strings automatically.
   This allows you to leave most of your language strings in-tact
   in your primary language, making working on your application
   much easier.
 
   Some parts of HTML structure, including some tag attributes and 
   javascript, are too complicated for trans to automatically do
   the right thing. In these cases, you must manually extract
   the string into an HDF file and then reference it in your HTML.
   
   For example, in the following HTML/Clearsilver fragment,
   the heading will be automatically identified, but the submit 
   button title cannot be extracted by trans safetly.

    <html>
    <body>
    <h1> Send us your Feedback </h1>
    <form>
    <input type=text name=feedback>
    <input type=submit name="Action.Submit" 
           value="Send Feedback">
    </form>
    </body>
    </html>

   You must convert the above fragment into something like this:

    <html>
    <body>
    <h1> Send us your Feedback </h1>
    <form>
    <input type=text name=feedback>
    <input type=submit name="Action.Submit" 
           value="<?cs var:Lang.SendFeedback ?>">
    </form>
    </body>
    </html>

   The "Lang.SendFeedback" item must be declared in your static page
   HDF, and must be marked with the '[Lang]' attribute.

    Lang.SendFeedback [Lang] = Send Feedback


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