blob-utils | chickadee

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This is an egg for CHICKEN 4, the unsupported old release. You're almost certainly looking for the CHICKEN 5 version of this egg, if it exists.

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Documentation

Usage

(require-extension blob-utils)

bytes->hexstring

bytes->hexstring BV #!optional START ENDprocedure

Returns a hexadecimal represenation of BV.

BV: (or string blob srfi-4-vector)
START: fixnum ; 0..<last>
END: fixnum ; 0..<end>

bytes-set-s8

bytes-set-u8! BV IDX UINTprocedure

bytes-set-s8! BV IDX INTprocedure

BV: (or string blob srfi-4-vector)
IDX: fixnum ; 0..<last>
UINT: fixnum ; 0..(2^8)-1
INT: fixnum ; -(2^7)..(2^7)-1

bytes-set-s16

bytes-set-u16! BV IDX UINTprocedure

bytes-set-s16! BV IDX INTprocedure

BV: (or string blob srfi-4-vector)
IDX: fixnum ; 0..<last>
UINT: fixnum ; 0..(2^16)-1
INT: fixnum ; -(2^15)..(2^15)-1

bytes-set-s32

bytes-set-u32! BV IDX UINTprocedure

bytes-set-s32! BV IDX INTprocedure

BV: (or string blob srfi-4-vector)
IDX: fixnum ; 0..<last>
UINT: number ; 0..(2^32)-1
INT: number ; -(2^31)..(2^31)-1

bytes-set-s64

bytes-set-u64! BV IDX UINTprocedure

bytes-set-s64! BV IDX INTprocedure

BV: (or string blob srfi-4-vector)
IDX: fixnum ; 0..<last>
UINT: number ; 0..(2^64)-1
INT: number ; -(2^63)..(2^63)-1

Blob Hexadecimal

Blob representation as a hexadecimal string.

Usage

(require-extension blob-hexadecimal)

blob->hex

blob->hex BLOB #!optional START ENDprocedure

Returns a hexadecimal represenation of the BLOB bytes.

BLOB: blob
START: fixnum ; 0..<last>
END: fixnum ; 0..<end>

Blob Set Int

Stuff integers into a blob.

Usage

(require-extension blob-set-int)

blob-set-u8!

(blob-set-u8! BLOB N [(OFFSET 0)])procedure: Sets the byte at OFFSET to N in BLOB.

blob-set-u16-le!

(blob-set-u16-le! BLOB N [(OFFSET 0)])procedure: Sets the 2 bytes at OFFSET to N in BLOB using little-endian byte order.

blob-set-u16-be!

(blob-set-u16-be! BLOB N [(OFFSET 0)])procedure: Sets the 2 bytes at OFFSET to N in BLOB using big-endian byte order.

blob-set-u32-le!

(blob-set-u32-le! BLOB N [(OFFSET 0)])procedure: Sets the 4 bytes at OFFSET to N in BLOB using little-endian byte order.

blob-set-u32-be!

(blob-set-u32-be! BLOB N [(OFFSET 0)])procedure: Sets the 4 bytes at OFFSET to N in BLOB using big-endian byte order.

blob-set-u64-le!

(blob-set-u64-le! BLOB N [(OFFSET 0)])procedure: Sets the 8 bytes at OFFSET to N in BLOB using little-endian byte order.

blob-set-u64-be!

(blob-set-u64-be! BLOB N [(OFFSET 0)])procedure: Sets the 8 bytes at OFFSET to N in BLOB using big-endian byte order.