I think the documentation might need to be fixed, but the implementation
seems fine to me. For the general case, it's not possible to
automatically insert the "count", as the string may have multiple format
specifiers where the numeric value is not the first argument. For
instance, the following example would break, if the substitution was
done automatically:
tr("Folder %1 has %2 file", "Folder %1 has %2 files", count)
In this case, %1 is the name of the folder, while %2 is the count. If
the implementation were to return the result of the gettext call, as a
QString with .arg(count) applied to it first, the result would be
incorrect.
Maybe it should be made more explicit in the documentation that the API
follows the standard QString API expectations here, and does not
automatically insert count or contextual values in the string result of
tr() calls, but I don't think the implementation should be changed.
** Summary changed:
- [i18n] Plural form does not work as documented
+ [i18n] Confused about using plural forms
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https://bugs.launchpad.net/bugs/1184810
Title:
[i18n] Confused about using plural forms
Status in ubuntu-ui-toolkit package in Ubuntu:
Confirmed
Bug description:
In the i18n component documentation the plural form should be used as:
* Translate the given input string \a singular or \a plural (depending on
the number of items \a n)
* using gettext. Should be called like this:
* tr("%n file", "%n files", count)
But this does not work as expected:
The result string from this expression is: ("%n file" or "%n files"
with the "%n" instead the value)
checking at the unit2d code I saw that the tr function automatically
replaces the %n with the count value, but I am not sure if this is the
correct solution.
For now I am using "tr("%1 file", "%1 files", count).arg(count)"
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