UltraEdit uses the Boost Regular Expression library in Perl syntax
. I don't know which version of the library is used by which version of UltraEdit. And I also don't know what is supported from the Boost regex library in UltraEdit/UEStudio and want can't be used in UltraEdit/UEStudio. This must be find out by trial and error/success.The "Perl syntax regular expression" library embedded in UltraEdit for Windows interprets \< as beginning of a word and \> as end of a word.
This can be seen in list opened when having Regular expressions
option in Find/Replace dialog enabled, having Perl
selected, and having clicked on button with .* (or a magnifying glass or with a triangle in older UE versions)
above (or right of) Find what
edit field. For Perl this list is not complete as such a list would not fit on screen. But it contains the most often used regular expressions which can be inserted in search string at current caret position by clicking on the list item. The list for the replace string is of course different.