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[[Category:Tools]]
[[Category:Internationalization]]
== Overview ==
The Po Generation Tool is an auxiliary tool of [[Internationalization|i18n library]] used extracting manifest strings from compilable Eiffel classes. 
The following manifest strings are extracted:
* Direct arguments of calls of `translation' and `plural_translation' are extracted.
* All under feature clauses named `Internationalization'.

The output is an [http://www.gnu.org/software/gettext/manual/html_node/gettext_9.html#SEC9 .po file] with void translations. The tool is being used for internationalization of EiffelStudio. The output file is the initial [https://origo.ethz.ch/eiffelsoftware/es/trunk/Delivery/studio/lang/po_files/estudio.pot estudio.pot] which is completed by appending other useful entries later. See [[EiffelStudio_Internationalization|EiffelStudio Internationalization]].
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The source code of the tool can be accessed [https://svn.origo.ethz.ch/eiffelstudio/trunk/Src/tools/po_generation_tool here].

== Usage ==
  Usage:
          po_generation_tool (-f|-D) INPUTFILE [(-f|-D) INPUTFILE] ... [-o OUTPUT]|[-]

  Example:
          po_generation_tool -f class1.e class2.e
          po_generation_tool -D dir1 dir2 -o out.pot
  
  Extract translatable strings from given input Eiffel class files (*.e).

  INPUTFILE ...   input files or directories
  -f              add list of input files
  -D              add list of directories to list for input files search
  -o              write output to specified file
                  If output file is -, output is written to standard output.
                  If output file is not specified, 'po_file.pot' will be generated as default name.
  -h              display this help and exit

== Limitations ==
* The tool now is not smart enough to identify a call of `translation' or `plural_translation' that is from an identifier of type I18N_LOCALE or others. This means that any call with the same name as `translation' and that takes one manifest string argument or with the same name as `plural_translation' and that takes two manifest string arguments is extracted.
* Suggestion: Do not use a feature with signature like "translation(a_string: STRING_GENERAL)" or "plural_translation (a_string1: STRING_GENERAL; a_string2: STRING_GENERAL)" in your system, if i18n library and the tool are used.

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Retrieved from "https://dev.eiffel.com/Po_generation_tool"

View source for Po generation tool

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