HelpText support localization starting version 2.6+ by adding public Resource files which include all HelpText of the Option class. You can use VS IDE to build the resource files.

Note: The Resource file should be public.

• In the design mode of the Visual Studio IDE right-click the Project node in the Solution Explorer tree and select Add >> New Item. Select the Resource File template and give it a name, for example Resource. It will be renamed as Resource.resx in the project.
• Double click Resource.resx in the Solution Explorer tree.
• Add a new entry for every helptext option in the option classs,e.g, for the next option:

[Option('n',"lines",//move to the resource file and name it: HelpTextLines HelpText="Lines to be printed from the beginning or end of the file."]) uint?Lines{get;set;}

Add an entry in the resource file: name: "HelpTextLines" value: "Lines to be printed from the beginning or end of the file."

• Repeat the previous step for all Properties of the Option class

• In the Solution Explorer, add a new Resource File and name it using the culture code for French, "Resource.fr-FR.resx".

• Double click "Resource.fr-FR.resx".

• Enter "Lignes à imprimer depuis le début ou la fin du fichier." for the "HelpTextLines" resource name.

• Complete the translation for all the English entries.

See Sample of resource files here.

• Modify the option class by filling the property ResourceType with the type of the resource you created and HelpText property with the name of string in the resource file as given below:

//modify the option [Option('n',"lines",HelpText="HelpTextLines",//name of the resource string in the resource fileResourceType=typeof(Properties.Resources))]// type of the resource classuint? Lines {get;set;}

• Optionally,

  • To localize the keywords "Required,Default" and the error messages, add the the string expressions of the class SentenceBuilder to the resource files.

  • You can add the class LocalizableSentenceBuilder to your project. It's localized and located here

  • In the Main method, Set sentence builder to LocalizableSentenceBuilder:

    SentenceBuilder.Factory=()=>newLocalizableSentenceBuilder();

A complete localized demo ReadText.LocalizedDemo is located here

ReadText.Demo 0.0.0.0 Copyright (C) 2020 author POUZITI: normální scénár: ReadText.LocalizedDemo.exe head file.bin specifikace poctu byte: ReadText.LocalizedDemo.exe head --bytes 100 file.bin potlacit sumár: ReadText.LocalizedDemo.exe head -q file.bin precíst více rádek: ReadText.LocalizedDemo.exe head --lines 10 file.bin ReadText.LocalizedDemo.exe head --lines=10 file.bin -n, --lines Povinné. (Default: 5) Pocet rádek zobrazenych od zacátku nebo konce souboru. -c, --bytes Pocet bytu zobrazenych od zacátku nebo konce souboru. -q, --quiet Potlacit sumár. --help Zobrazit tuto nápovedu. --version Zobrazit informaci o verzi. input file (pos. 0) Povinné. Jméno vstupního souboru. 

Remarks:

• To enable the culture in the Console Application,e.g cs, add the next lines at the beginning of the Main method:

System.Threading.Thread.CurrentThread.CurrentCulture=newCultureInfo("cs",false);System.Threading.Thread.CurrentThread.CurrentUICulture=newCultureInfo("cs",false);

Resources:

Download a localized demo example.