Extract the Value of a Binary Block
The blockValue function returns the interpreted value of a block
of binary data (a "rawBlock" object).
The blockString function returns a null-terminated string
from a block
of binary data that is interpreted as a character data.
blockValue(block) blockString(block)
block |
A |
The type
of the value returned is determined when the binary
block is created (e.g., by readRaw)
not when the value is extracted
by the blockValue function.
The blockString function is useful for extracting
a value from a binary block which is a string padded with
null characters.
The blockString function throws an error if the
block is not interpreted as a character value.
Either a character, or numeric vector depending on how the binary block should be interpreted.
Paul Murrell
charBlock <- readRaw(hexViewFile("rawTest.txt"), width=8)
blockValue(charBlock)
blockString(charBlock)
intBlock <- readRaw(hexViewFile("rawTest.int"), human="int")
blockValue(intBlock)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.