Bcopy » History » Version 5
Per Amundsen, 02/08/2014 11:34 PM
1 | 5 | Per Amundsen | _Added in 1.9.0_ |
---|---|---|---|
2 | |||
3 | 4 | Per Amundsen | */bcopy [-zc] <&binvar> <N> <&binvar> <S> <M>* |
4 | 1 | Per Amundsen | |
5 | Copies <M> bytes from position <S> in the second &binvar to the first &binvar at position <N>. |
||
6 | This can also be used to copy overlapping parts of a &binvar to itself. |
||
7 | |||
8 | *Switches* |
||
9 | |||
10 | -z - The bytes in the second &binvar that is copied are zero-filled after the copy. |
||
11 | -c - The first &binvar is chopped to <N> + <M>. |
||
12 | |||
13 | *Parameters* |
||
14 | |||
15 | <&binvar> - Target &binvar to copy to. |
||
16 | <N> - Target position in the first &binvar to copy to. |
||
17 | <&binvar> - Source &binvar to copy from. |
||
18 | <S> - Source position to copy from. |
||
19 | <M> - Number of bytes to copy. |
||
20 | |||
21 | *Example* |
||
22 | |||
23 | 2 | Per Amundsen | <pre> |
24 | 1 | Per Amundsen | alias /example { |
25 | ;Create a binary variable and assign it some text |
||
26 | bset -t &example 1 This is a test! |
||
27 | |||
28 | ;Copy from 'example' from the 11th byte 10 bytes onward |
||
29 | ;Zero-fill the part that was copied |
||
30 | bcopy -z &example2 1 &example 11 10 |
||
31 | |||
32 | ;Print out &example's content (up to the first null) |
||
33 | echo -a $bvar(&example, 1-).text |
||
34 | |||
35 | ;Print out &example2's content |
||
36 | echo -a $bvar(&example2, 1-).text |
||
37 | } |
||
38 | 2 | Per Amundsen | </pre> |