regex

The regular expression that an EmailAddress should match.

The underlying pattern is ^\S+@\S+\.\S+$.

Here's the explanation associated to each symbol used in this pattern:

• ^ Beginning. Matches the beginning of the string, or the beginning of a line if the multiline flag (m) is enabled.

• \S Not whitespace. Matches any character that is not a whitespace character (spaces, tabs, line breaks).

• + Quantifier. Match 1 or more of the preceding token.

• @ Character. Match a "@" character (char code 64).

• \. Escaped character. Matches a "." character (char code 46).

• $ End. Matches the end of the string, or the end of a line if the multiline flag (m) is enabled.

Here's an example of calling this property from Kotlin code:

println("[email protected]" matches EmailAddress.regex) // true

The Regex type being unavailable on Java, this property is not available for this language.