[3] Installation. Misleading de-DE alert text

[ReLater]

I really don't know if it's worth to change something here. Pedantry...

Steps to reproduce the issue

• Install J3 and set language to de-DE for install process.
• In databse settings fill all fields but clear the table prefix field.
• Try to go to next installation step.

You'll see an alert (language string INSTL_DATABASE_PREFIX_MSG) that says:

Der Tabellenpräfix muss mit einem Buchstaben beginnen, danach können optional alphanumerische Zeichen und ein Unterstrich folgen.

(EN counterpart:
The table prefix must start with a letter, be followed by optional alphanumeric characters and by an underscore
)

• At least the German text suggests that the underscore is optional, too.

[brianteeman]

@Bakual one for you

[zero-24]

@ReLater hmm I'm not an regex pro but it does not seam to be required:

joomla-cms/installation/model/database.php

Line 128 in 3601da2

if (!preg_match('#^[a-zA-Z]+[a-zA-Z0-9_]*$#', $options->db_prefix))

Demo
https://3v4l.org/SD0XE

[ReLater]

It's required. I've tested it without underscore.

See also description of the related input field: https://github.com/joomla/joomla-cms/blob/staging/installation/language/de-DE/de-DE.ini#L44

enthält nur alphanumerische Zeichen und MUSS mit einem Unterstrich enden.

I think it's a JS thing or client-site input validation but ???.

[zero-24]

Well than please send an issue / PR against https://github.com/joomlagerman/joomla so we make it more clear that the underscore is required in that string too. Any changes in the official language repo gets synced back in here.

[ReLater]

PR: joomlagerman/joomla#847

[zero-24]

Thanks @ReLater