parser-on-rust 0.1.3

url parser on rust
Documentation 
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url = { scheme ~ "://" ~ host ~ (":" ~ port)? ~ (path ~ ("/" ~ file)? ~ ("?" ~ query)? ~ ("#" ~ fragment)?)? }
scheme = { identifier_with_optional_dot }
host = { identifier_with_optional_dot }
port = { number }
path = { "/" ~ identifier ~ ("/" ~ identifier)* }
query = { identifier ~ ("=" ~ identifier)* }
fragment = { identifier }
file = { identifier ~ ("." ~ identifier)* }

identifier = { ASCII_ALPHANUMERIC+ }
identifier_with_optional_dot = { identifier ~ ( "." ~ ASCII_ALPHANUMERIC+)* }
number = { DIGIT+ }

WHITESPACE = _{ " " | "\n" | "\t" }
ASCII_ALPHANUMERIC = _{ ASCII_ALPHABET | DIGIT }
ASCII_ALPHABET = _{ 'a'..'z' | 'A'..'Z' }
DIGIT = _{ '0'..'9' }