regex.md

regex

Regular expressions. import regex.

regex.is_match(pat: String, s: String) -> Bool

Check if a pattern matches anywhere in a string.

regex.is_match("[0-9]+", "abc123") // => true

regex.full_match(pat: String, s: String) -> Bool

Check if a pattern matches the entire string.

regex.full_match("[0-9]+", "123") // => true

regex.find(pat: String, s: String) -> Option[String]

Find the first match of a pattern in a string.

regex.find("[0-9]+", "abc123def") // => some("123")

regex.find_all(pat: String, s: String) -> List[String]

Find all non-overlapping matches of a pattern.

regex.find_all("[0-9]+", "a1b2c3") // => ["1", "2", "3"]

regex.replace(pat: String, s: String, rep: String) -> String

Replace all matches of a pattern with a replacement string.

regex.replace("[0-9]+", "a1b2", "X") // => "aXbX"

regex.replace_first(pat: String, s: String, rep: String) -> String

Replace the first match of a pattern.

regex.replace_first("[0-9]+", "a1b2", "X") // => "aXb2"

regex.split(pat: String, s: String) -> List[String]

Split a string by a regex pattern.

regex.split("[,;]", "a,b;c") // => ["a", "b", "c"]

regex.captures(pat: String, s: String) -> Option[List[String]]

Extract capture groups from the first match.

regex.captures("(\\w+)@(\\w+)", "user@host") // => some(["user@host", "user", "host"])