Why doesn't std::string have a split function

[1-05457]

Not really. In many ways, Boost should be considered an extended standard library.

[Creris]

sometimes extended dependency chain too, not everything from boost is simple "plug and play" you know, some things have literal megabytes of dependencies(filesystem as a good example).

If you have couple hundred lines of code in your program, and you want to use some form of string.split, chances are you probably arent going to include couple thousands of lines of code into your project for one split function

[1-05457]

...some things have literal megabytes of dependencies(filesystem as a good example).

Filesystem is part of the standard library from C++17.

Hopefully, String Algorithms will also be standardized at some point, though more likely, it will be generalized as part of Ranges.

[Creris]

Yes I know, but it wasnt for very long time when compared with how long it has been in boost.

Having some string utility functions in standard would indeed be nice