Good C++ string manipulation library

Question

The C++ String Toolkit (StrTk) Library is a free library that consists of robust, optimized and portable generic string processing algorithms and procedures for the C++ language. The library is designed to be easy to use and integrate within existing code.

The library has the following capabilities:

• Generic string tokenizer and token iterators
• Split routines
• User specified delimiter and splitter policies (simple and regex based etc.)
• Conversions between data and hex and base-64
• In-place removal and replace routines
• Wild-card matching and globing
• Fast 2D token grid processing
• Extensible string processing templates

and plenty more...

Compatible C++ Compilers:

• GCC 4.0+
• Intel C++ Compiler 9.0+
• Microsoft Visual C++ 8.0+
• Comeau C/C++ 4.1+

Source:

• Download: http://www.partow.net/programming/strtk/index.html
• SVN: http://code.google.com/p/strtk/

The C++ String Algorithms Library from Boost has pretty much all of the features you need.

I'm not sure I agree. Strings really shouldn't be thread-safe due to the overhead, except for reference-counting, if applicable. Most of the other functionality you want would turn strings into a garbage barge. Likewise, removing dependencies would remove their ability to work well with streams.

The one thing I'd suggest is that we could benefit from an immutable string class, particularly one that has no memory ownership or termination. I've written those before and they can be very helpful.

Bstring - Although I never tried it myself, the feature set and speed presented at their site. Under your choice of GPL or BSD license is also a good degree of freedom.

Also, the name suggests it's better so how can they lie? :)