Gumbo is an implementation of the HTML5 parsing algorithm implemented as a pure
C99 library with no outside dependencies.

Goals and features of the C library:

 - Fully conformant with the HTML5 spec.
 - Robust and resilient to bad input.
 - Simple API that can be easily wrapped by other languages.
 - Support for source locations and pointers back to the original text.
 - Relatively lightweight, with no outside dependencies.
 - Tested on over 2.5 billion pages from Google's index.