WordPress.org

Is the term msgid may contain words enriched by html tags ?

like <em> or <strong>

Yes, since version 0.9.7.

a <strong>good</strong> word

can be translated by

un mot <strong>exact</strong>

Where can I see websites using this plugin ?

dev.xiligroup.com here and http://www.xiliphone.mobi here also usable with mobile as iPhone.

What is the difference with msgid and msgtr in .po file ?

The msgid line is equal to the term or sentence hardcoded in the theme functions like _e() or __(). msgstr is the translation in the target language : by instance fr_FR.po for a french dictionary. (the compiled file is fr_FR.mo saved in the theme folder. The root language is in Wordpress currently en_US, but with xili-dictionary, it is possible to create a en_US.mo containing the only few terms that you want to adapt.

Is xili-dictionary usable without xili-language to edit .po or .mo file ?

With certain conditions, the language must in the default list and if the language files are not in the root of the current theme, you must add this line in functions.php file of this theme (normally set before xili-language is installed) :

define('THEME_LANGS_FOLDER','/nameoflangfolder'); // in Fusion: /lang

What about plural translations ?

Today works with .mo or .po with simple twin msgid msgstr couple of lines and themes with functions like _e() or __() for localization AND _n() which manage singular and plural terms like msgid, msgid_plural, msgstr[0],...

What about future WP 2.9 ?

Today works...