Quote:
Originally Posted by kovidgoyal
The only useful feature that exists in Sigil that does not exist in the editor's regex engine is the \U operator, and the editor will be getting a function mode for search and replace that will be far more powerful and general than that.
|
I've certainly not found the regex module calibre's editor uses to be lacking any real functionality (with the exception of the \U \L \u \l \E replacement operators you mentioned) compared to Sigil's PCRE engine. I
do still miss the \K operator at times, but the addition of variable-length lookbehinds makes it possible to replicate \K's versatility anyway.