Re: [limesurvey-developers] EM - Umlauts at variable names / check before activation

[Thomas W. <tom...@gm...>]

The syntax error checker uses this regular expression pattern for Question
codes (variable names):  /^[_a-Z][_a-Z0-9]*$/

So, international characters would not be accepted.

However, the main purpose is to ensure valid database variable names (and
avoid inclusion of characters like [.,-*/+] which would be interpreted by
EM as operators or syntax.  What is the complete set of characters that are
allowed across all databases we plan to support?

Also, I agree that it would be easy (and a good idea) to run the Show Logic
File function to determine the number of syntax errors while activating the
survey.