Translating the content

1

The following code translates my_translateable_text to the native language activated for the current page.

How does this works?

2

Right below it :wink: , on the same page:
Translation string substitution

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3

I mean, Plone will translate everything if there's an entry in a .po? For example if a='my text' and I've an entry for 'my text' in a it.po file for the current language (for example mio testo, then
<span tal:content="a"></span> will output mio testo if the language is it? And this without any additional code?

4

Generally yes, MessageStrings are incredibly useful. @mauritsvanrees wrote some blog posts many years ago that are still my go-to documentation...

Edit: see Mikel's clarification below ... It does not work for plain text strings.

In a TAL template, you would use a stanza like:
<span i18n:translate="msg_greeting" i18n:domain="mypackage">Hello</span>

where in your mypackage's it .po

msgid "msg_greeting"
msgstr "Buongiorno"

Edit2, or
<span i18n:translate="" i18n:domain="mypackage" tal:content="here/my_greeting">Good Morning / Good Afternoon</span>

msgid "Good Morning"
msgstr "Buongiorno"

msgid "Good Afternoon"
msgstr "Buonasera"

You can set the default i18n:domain at the top of your template, right after its namespace definitions

5

No, it means that if a is an instance of zope.i18nmessageid.message.Message, it will be translated. It won't translate plain strings.

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