github.com/gnolang/gno@v0.0.0-20240520182011-228e9d0192ce/gnovm/stdlibs/unicode (about) README.md casetables.gno digit.gno digit_test.gno example_test.gno graphic.gno graphic_test.gno letter.gno letter_test.gno script_test.gno tables.gno utf16 utf8