snek-lang-parser/src/grammar.pest

file = { "hello world" }

literal = { string | number | boolean }

string = { "\"" ~ (!"\"" ~ ANY)* ~ "\"" }

number = _{ byte | float | integer }

integer = @{ "-"? ~ ASCII_DIGIT+ }

float = @{
    "-"? ~ (ASCII_DIGIT+ ~ "." ~ ASCII_DIGIT* | ASCII_DIGIT* ~ "." ~ ASCII_DIGIT+)
}

byte = @{ "0x" ~ ASCII_HEX_DIGIT{1, 2} | "0b" ~ ASCII_BIN_DIGIT{0, 8} }

boolean = @{ "true" | "false" }

WHITESPACE = _{ " " | "\t" | "\r" | "\n" }