CF>string ( alien -- string )

Vocabulary

core-foundation.strings

Inputs

alien

a CFString

Outputs

string

a string

Word description

Creates a Factor string from a Core Foundation string.

See also

<NSString>, <CFString>

Definition

USING: accessors alien.data byte-vectors core-foundation
io.encodings.string io.encodings.utf8 kernel math sequences ;

IN: core-foundation.strings

: CF>string ( alien -- string )
    dup CFStringGetLength
    [ 0 swap <CFRange> kCFStringEncodingUTF8 0 f ] keep 4 * 1 +
    <byte-vector> [
        underlying>> dup length
        { CFIndex } [ CFStringGetBytes drop ]
        with-out-parameters
    ] 1check >>length utf8 decode ;