Question

I need a regexp which matches to the sting which

• starts with $
• ends with $
• contains some alphabetical characters (not defined how many)

e.g.

$ABC$    # ok
$ABCDEF$ # ok
$ABC     # not ok
AC$      # not ok

Answer 1

^\$[A-Za-z]*\$$

This will match 0 or more characters in between dollar signs. If you want to match one or more, use ^\$[A-Za-z]+\$$.

This could probably be written with fewer characters, but I have no indication of what regex engine you’re using, so I can’t use any specific features.