string

string

A valid UTF-8 encoded sequence of bytes.

is\blank

string.is\blank: () => boolean

Returns true: if the string contains only blank characters. Returns false: otherwise.

split

string.split: delimiter string => tokens *string

Split the receiving string on the given delimitier.

has\sub

string.has\sub: substring string => boolean

Returns true: if the receiver contains the argument string.

has\ending

string.has\ending: substring string => boolean

Returns true: if the receiver ends with the argument string.

has\beginning

string.has\beginning: substring string => boolean

Returns true if the receiver string begins with the argument string.

to\message

string.to\message: () => message

Convert a string into a message.

to\binary

string.to\binary: () => binary

Convert a string into a binary.

as\number

string.as\number: () => (success (status ok:, value float) | failure (status err:, message nil:))

Try to convert a string into a number. If successful, return ok: and the number. Otherwise, return err:.

len

string.len: () => int

Return the length of the string. This does not count the bytes of the string - it returns the number of graphemes.

at

string.at: index int => (some (status ok:, value string) | none none:)

Return ok: and the grapheme at the given index. If none exists, return none:.

slice

string.slice: (begin (some (status ok:, value int) | none none:), end (some (status ok:, value int) | none none:)) => string

Return a substring of graphemes at the given indices. Will panic if indices are out of bounds.

pop

string.pop: () => (some (status ok:, value (rest string, last string)) | none none:)

Similar behavior to pop: on the records.

trim

string.trim: trimset string => string

Trim graphemes from the front and back of the string if they are within the arg ’trimset'.