Difference between revisions of "Internationalization/feasibility"

 
 
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[[Category:Internationalization]]
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[[Category:Internationalization SA project]]
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==Summary==
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Our task is to find out the possible main difficulties that will be encoutered during both design and implementation of the [[internationalization|i18n]] framework.
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Main focuses are:
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* state of the Unicode implementation
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* strings usage in Vision2
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* runtime generated/composed strings with variables
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==String types and their possible difficulties==
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===Constant String===
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Workbench_name: <font color="Blue">STRING is</font> <font color="Green">"EiffelStudio"</font>
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====Difficulties====
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====Possible Solution====
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===String with label specific syntax===
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m_to_lower: <font color="Blue">STRING is</font> <font color="Green">"Set to &Lowercase%TCtrl+Shift+U"</font>
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====Difficulties====
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* Bad readability for the traducer
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* Shortcuts conflict
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====Possible Solution====
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===Composed String===
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m_About:<font color="Blue">STRING is</font>
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  <font color="Blue">once</font>
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        <font color="Blue">Result</font>:<font color="Green">"&About"</font><font color="Red">+</font> Workbench_name <font color="Red">+</font><font color="Green"> "..."</font>
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  <font color="Blue">end</font>
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====Difficulties====
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====Possible Solution====
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===Runtime composed String containging queries===
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w_Project_directory_not_exist (file_name, dir_name: <font color="Blue">STRING</font>):<font color="Blue">STRING is</font>
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  <font color="Blue">do</font>
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        <font color="Blue">create Result</font>.make(256)
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        <font color="Blue">Result</font>.append (<font color="Green">"%NCannot open project '"</font>)
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        <font color="Blue">Result</font>.append (file_name)
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        <font color="Blue">Result</font>.append (<font color="Green">"'.%N%NMake sure you have a complete EIFGEN directory in '"</font>)
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        <font color="Blue">Result</font>.append (dir_name)
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        <font color="Blue">Result</font>.append (<font color="Green">"'."</font>)
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  <font color="Blue">end</font>
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====Difficulties====
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====Possible Solution====
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==Important Classes==
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====Defining and formatting Strings====
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* INTERFACE_NAMES: Include all the strings of the ES interface (buttons, labels, shortcuts...)
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* TEXT_FORMATTER: Text formatter for all text output formatting
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* ERROR: Error object sent by the compiler to the workbench. Ancestor class of all error classes (WARNING, SYNTAX_ERROR, INTERRUPT_ERROR, LACE_ERROR,EIFFEL_ERROR...)
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====Implementations====
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* STRING_GENERAL: "Common ancestors to all STRING classes." [base]
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** STRING:  [base]
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*** UC_STRING: Unicode strings [gobo]
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**** UC_UTF8_STRING: Unicode strings with UTF-8 encoding
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** STRING_32:  [base]
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* UC_CHARACTER: Unicode characters [gobo]
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* KS_STRING: Portable interface for class STRING [Gobo]
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* cluster: "gobo.kernel.unicode"
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* WIDE_CHARACTER: Unicode characters, with comparison operations [base]

Latest revision as of 09:30, 15 August 2006


Summary

Our task is to find out the possible main difficulties that will be encoutered during both design and implementation of the i18n framework.

Main focuses are:

  • state of the Unicode implementation
  • strings usage in Vision2
  • runtime generated/composed strings with variables

String types and their possible difficulties

Constant String

Workbench_name: STRING is "EiffelStudio"

Difficulties

Possible Solution

String with label specific syntax

m_to_lower: STRING is "Set to &Lowercase%TCtrl+Shift+U"

Difficulties

  • Bad readability for the traducer
  • Shortcuts conflict

Possible Solution

Composed String

m_About:STRING is
  once
       Result:"&About"+ Workbench_name + "..."
  end

Difficulties

Possible Solution

Runtime composed String containging queries

w_Project_directory_not_exist (file_name, dir_name: STRING):STRING is
  do
       create Result.make(256)
       Result.append ("%NCannot open project '")
       Result.append (file_name)
       Result.append ("'.%N%NMake sure you have a complete EIFGEN directory in '")
       Result.append (dir_name)
       Result.append ("'.")
  end

Difficulties

Possible Solution

Important Classes

Defining and formatting Strings

  • INTERFACE_NAMES: Include all the strings of the ES interface (buttons, labels, shortcuts...)
  • TEXT_FORMATTER: Text formatter for all text output formatting
  • ERROR: Error object sent by the compiler to the workbench. Ancestor class of all error classes (WARNING, SYNTAX_ERROR, INTERRUPT_ERROR, LACE_ERROR,EIFFEL_ERROR...)

Implementations

  • STRING_GENERAL: "Common ancestors to all STRING classes." [base]
    • STRING: [base]
      • UC_STRING: Unicode strings [gobo]
        • UC_UTF8_STRING: Unicode strings with UTF-8 encoding
    • STRING_32: [base]
  • UC_CHARACTER: Unicode characters [gobo]
  • KS_STRING: Portable interface for class STRING [Gobo]
  • cluster: "gobo.kernel.unicode"
  • WIDE_CHARACTER: Unicode characters, with comparison operations [base]
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