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Returns true if a file exits

Karl Malbrain's compact CRC-32. See "A compact CCITT crc16 and crc32 C implementation that balances processor cache usage against speed": http://www.g

update selection and cursor to match each other

Returns a pointer to the underlying zero-terminated array of characters */

Returns the name of the file given the path (extension included)

std::lower_bound but without the bullshit

Convert UTF-8 to 32-bits character, process single character input. Based on stb_from_utf8() from github.com/nothings/stb/ We handle UTF-8 decoding er

Utility functions