How to refer to language constant within CB language override file?

Yes - all set as needed - it drove me crazy - I started to substitute different links (like facebook, etc. ) in that space, and all were "broken in half" - after some though: I have removed all the spaces from the html output so the entire email was one big line - since whatever I entered there, was "broken" into the next line - I pushed the entire <a href= tag into new line... it worked... I'm wondering if I exceeded allowed amount of characters per line and system automatically forced me to the next one... - not sure, but that's my best guess after seeing the results. - thanks for brainstorming with me

Kyle - a quick follow up question, in part referring to this ticket: www.joomlapolis.com/forum/153-professional-member-support/230201-cb-invites-usage

In invites plugin > Parameters > Email Tab > either body header or footer: if I enter link with language constant like this <a href="<?php echo JText::_('LANGUAGE_CONSTANT') ; ?>"> - will this work?
Thanks!

Kyle: I need to parse a html content (template) for the username reminder email (UE_USERNAMEREMINDER_MSG in CB language file -> cloned to overrides) - as well as into the password reset email.
I tried to do the same as in i.e. YOUR_REGISTRATION_IS_PENDING_APPROVAL_MESSAGE - but I'm getting empty email if I enter full html template (escaped " and ' with \" and \')

On another note: I'm kind of surprised that neither Joomla nor CB or in that matter any other component that I ran into doesn't implement a way for a global, company-branded email template - where you can define your header - body - footer and all the messages that are then listed across the entire website use that main template. It is quite ridiculous to enter for every single language email body string the entire email template, over and over - quite irritating. Hope you don't mind my venting

In invites plugin > Parameters > Email Tab > either body header or footer: if I enter link with language constant like this <a href="<?php echo JText::_('LANGUAGE_CONSTANT') ; ?>"> - will this work?

No, you can't use PHP there nor can you use language strings inline. You need to translate the entire string. Example as follows.

Header: MY_INVITE_HEADER
Language String:

Kyle: I need to parse a html content (template) for the username reminder email (UE_USERNAMEREMINDER_MSG in CB language file -> cloned to overrides) - as well as into the password reset email.
I tried to do the same as in i.e. YOUR_REGISTRATION_IS_PENDING_APPROVAL_MESSAGE - but I'm getting empty email if I enter full html template (escaped " and ' with \" and \')

Do not include a body tag or anything of the sort. Just supply your HTML properly escape for PHP in your language string. Body is already handled by the mailer.