blockValue: Extract the Value of a Binary Block
In hexView: Viewing Binary Files

Description Usage Arguments Details Value Author(s) See Also Examples

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.

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blockValue(block)

blockString(block)

block

A "rawBlock" object.

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

readRaw readFormat

charBlock <- readRaw(hexViewFile("rawTest.txt"), width=8)
blockValue(charBlock)
blockString(charBlock)

intBlock <- readRaw(hexViewFile("rawTest.int"), human="int")
blockValue(intBlock)

 [1] "t" "e" "s" "t" " " "p" "a" "t" "t" "e" "r" "n" "."
[1] "test pattern."
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