ulower

ulower(m?: string): Parser

Parses a Unicode lowercase letter.

A character is a Unicode lowercase letter if it has the Unicode Lowercase. This is approximately equal to characters that match the regular expression /\p{Ll}/u but includes a few other characters as well.

Example

const parser = ulower()

const s = parse(parser, 'абв')
console.log(status(s))  // "ok"
console.log(success(s)) // "а"

const f = parse(parser, 'АБВ')
console.log(status(f))  // "fail"
console.log(failure(f)) // Parse error at (line 1, column 1):
                        //
                        // АБВ
                        // ^
                        // Expected a Unicode lowercase letter

Parameters

• m: The optional expected error message that will take the place of the default error message.

Success

• Succeeds if the next character is a Unicode lowercase letter. Consumes and returns that character.

Failure

• Fails if the next character is any other character.

Throws

• Throws an error if m exists and is not a string.

See Also

• Parser
• lower
• ualpha
• uletter
• uupper