The default value of port is the current input or output port, as appropriate. It is an error if the ports passed to these procedures are not binary ports. The [type] values are defined in BytevectorsCowan.
(read-[type] [ port ])
Reads the appropriate number of bytes from port in native byte order and returns a number of the appropriate type (exact integer or inexact real or complex number).
(read-[type]le [ port ])
Reads the appropriate number of bytes from port in little-endian byte order and returns a number of the appropriate type (exact integer or inexact real or complex number).
(read-[type]be [ port ])
Reads the appropriate number of bytes from port in big-endian ("network") byte order and returns a number of the appropriate type (exact integer or inexact real or complex number).
(write-[type] number [ port ])
Writes number to port in the appropriate format using native byte order.
(write-[type]le number [ port ])
Writes number to port in the appropriate format using little-endian byte order.
(write-[type]be number [ port ])
Writes number to port in the appropriate format using big-endian ("network") byte order.
(read-ber-integer [ port ])
Reads a BER-encoded integer of arbitrary size from port and returns it as an exact integer.
(write-ber-integer exact-integer [ port ])
Writes exact-integer using BER encoding to port.
(read-utf8-string k [ port ])
(read-utf16-le-string k [ port ])
(read-utf16-be-string k [ port ])
Read k bytes from port, interpreting them as a sequence of characters encoded in UTF-8, UTF-16LE, or UTF-16BE, and return the sequence as a string. It is an error if the implementation forbids any of the characters in strings, except that if the implementation forbids null characters in strings and the final character is a null, then it is discarded.
(write-utf8-string string [ port ])
(write-utf16-le-string string [ port ])
(write-utf16-be-string string' [ port'' ])
Convert the characters of string to UTF-8, UTF-16LE, or UTF-16BE, and write the bytes to port. It is an error if the implementation forbids any of the characters in strings.
(read-utf8-string-until byte [ port ])
Read bytes from port until a byte equal to byte is read. Interpret all the other bytes as a sequence of characters encoded in UTF-8, and return two values, the character sequence as a string and the terminating byte as a character.
See SRFI 56 for implementation.