README.regex

A note about regex in LE editor
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I had a bad luck finding an efficient and bug-free regex library
implementing re_search_2 function. Fortunately, GNU Emacs contained such a
function, which I borrowed.

I needed re_search_2 function because LE stores the text in the memory as
two part string with a gap between the parts. The efficiency was needed
mostly because regex was used for dynamic syntax highlighting.

New version of regex implements non-greedy modifiers which were successfully
used for C-like comment matching. Without such modifier it was impossible to
create a perfect pattern for C comments.

-- 
   Alexander.