Module (chicken bytevector)
This module contains procedures for dealing with "bytevectors". Blobs are unstructured byte arrays (basically "binary strings"). You can't do much with them, but they allow conversion to and from SRFI-4 number vectors which define how to access a bytevector's byte contents.
bytevector
[procedure] (bytevector FIXNUM ...)Returns a new bytevector containing the values FIXNUM ....
make-bytevector
[procedure] (make-bytevector SIZE)Returns a bytevector object of SIZE bytes, aligned on an 8-byte boundary, uninitialized.
bytevector?
[procedure] (bytevector? X)Returns #t if X is a bytevector object, or #f otherwise.
bytevector-length
[procedure] (bytevector-length BYTEVECTOR)Returns the number of bytes in BYTEVECTOR.
bytevector-u8-ref
[procedure] (bytevector-u8-ref BYTEVECTOR INDEX)Returns the byte at INDEX in BYTEVECTOR.
bytevector-u8-set!
[procedure] (bytevector-u8-set! BYTEVECTOR INDEX VALUE)Destructively modifies the byte at INDEX in BYTEVECTOR to VALUE, which should be a fixnum.
utf8->string
[procedure] (utf8->string BYTEVECTOR [VALIDATE])Returns a string with the contents of BYTEVECTOR. if VALIDATE is given and false, then invalidly encoded characters do not signal an error - byte-sequences that do no represent valid UTF-8 characters are retained and, if extracted with string-ref are converted to a trailing surrogate pair half in the range U+DC80 to U+DCFF.
string->utf8
[procedure] (string->utf8 STRING)Returns a bytevector with the contents of STRING.
latin1->string
[procedure] (latin1->string BYTEVECTOR)Returns a string with the contents of BYTEVECTOR converted from Latin-1 (ISO-8859-1) encoding to UTF-8.
string->latin1
[procedure] (string->latin1 STRING)Returns a bytevector with the contents of STRING encoded as Latin-1 (ISO-?8859-1).
bytevector=?
[procedure] (bytevector=? BYTEVECTOR1 BYTEVECTOR2)Returns #t if the two argument bytevectors are of the same size and have the same content.
bytevector-append
[procedure] (bytevector-append BYTEVECTOR ...)Returns a new bytevector holding the concatenated contents of all argument bytevectors.
bytevector-copy
[procedure] (bytevector-copy BYTEVECTOR #!optional START END)Returns a new bytevector holding the contents of BYTEVECTOR between the indices START to END.
bytevector-copy!
[procedure] (bytevector-copy! TO AT FROM #!optional START END)Copioes the contents of the bytevector FROM between the indices START to END into the bytevector TO, starting at index AT.
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