package core:unicode/utf8/utf8string

Source

String :: struct {
	contents:   string,
	rune_count: int,
	// cached information
	non_ascii:  int,
	// index to non-ascii code points
	width:      int,
	// 0 if ascii
	byte_pos:   int,
	rune_pos:   int,
}

at :: proc(s: ^String, i: int, loc := #caller_location) -> (r: untyped rune) {…}

init :: proc(s: ^String, contents: string) -> ^String {…}

is_ascii :: proc(s: ^String) -> bool {…}

len :: proc(s: ^String) -> int {…}

slice :: proc(s: ^String, i, j: int, loc := #caller_location) -> string {…}

to_string :: proc(s: ^String) -> string {…}