utf-8 support about cpp-peglib HOT 1 CLOSED

@mjsurette, thanks for the information of your library. In fact, I have already written my own Unicode library which also includes UTF conversion functions. 😄
https://github.com/yhirose/cpp-unicodelib#encoding

Since the input interfaces of peglib are const char* and std::string, it accepts only 8-bit character encoding such as ASCII or UTF-8. I just would like to stick to it for simplicity, rather than introducing interfaces of other character sizes.

One remaining problem with the 8-bit approach is how to properly handle . PEG operator (It is in the TODO list.). It should match any character. But the meaning of it depends on the encoding or the user's intention. It could be just a ASCII single byte in ASCII encoding, or a valid UTF-8 byte sequence or a valid UTF-8 grapheme cluster in UTF-8. Since it's enough for all my projects so far that . matches a single byte, I just leave it for now.

Anyway, thanks for your interest in this library!

from cpp-peglib.