We use (Pest-Rust) to write our grammar based on official PEGN.
Comparison with peg and regex. read more about that.
- Curly Braces
{}: As start to define new line of grammar for a variable you must define grammar between a Curly Braces - ASCII_DIGIT: Contains all ASCII digital numbers
- Plus
+: is just like Regex, continue expression: x^1, x^2 - Asterisk
*: Is just like +, repeat pattern zero or more time: (x^0="" or lambda`), x^1, x^2 - Tilde
~: Is just like And to concatenate two things, "abc" ~ "def" -> "abcdef" - SOI: Start of Input
- EOI: End of Input
- see more