Faster lookup for processing big sdp : proposal

[charles-yubo]

Hi,
We recently went to unified-plan and I made some changes in my local to have faster code.
In particular for attributes, I created a pre check of beginning of the string (like rtmap) before calling the regex search.

Would you be interested for the addition?

Also I introduced some man made mapping for simple one to be faster+string_view.

Feel free to answer me there
Regards

[ibc]

Sure.

[charles-yubo]

Could string_view be used ?

[ibc]

Could string_view be used ?

I'm afraid I don't know what that is.

[CharlesC87]

It is included in c++17 and consist in a pair of iterator that allow fats string (view) manipulation as long as originla string remains

[CharlesC87]

avoid creating of a lot of substrings ( less memory allocation : faster)

[CharlesC87]

First PR #26
(I am the same guy as charles-yubo)