6 releases
0.2.3 | Apr 20, 2024 |
---|---|
0.2.2 | Jan 31, 2023 |
0.2.1 | Jul 22, 2022 |
0.1.1 | Mar 5, 2022 |
0.1.0 | Feb 9, 2022 |
#1283 in Algorithms
31 downloads per month
Used in biodiff
43KB
981 lines
Hexagex
Hexagexes are regexes using hexadecimals and bits for matching binary data.
The syntax is mostly the same as in the regex crate, but the literals have been replaced:
0
-9
,a
-f
: 4-bits sequences interpreted as base 16 numbers.
: 4-bit wildcardO
,I
: 1-bit value corresponding to 0 and 1_
: 1-bit wildcard^
,$
: these match the start and end of the text, not of the line\t
: this is an escape to interprete the content immediately after it into a non-hexagex regular regex
A hexagex binary can be compiled with cargo build
that allows one to find matches with hexagex [exp] [file]
.
Examples
01020304
: match the bytes [1, 2, 3, 4]([2-7].){5,}00
: match bytes from0x20
to0x7f
of length at least 5 with a null terminatorI_I_I_I_|_O_O_O_O
: match bytes that have all even bits set or odd bits unset[0-69CEF][6-F]|[0EF]0|[23EF]2|[0-37-F]3|[018ACDEF]4|D[67]|(.1|[78AD]I___|[0-69CEF]5|[2-79]4|[4-8A-D][02]|[78A][67]|92)..|(B[4-F]|[01]2|[1239]0|[456]3|[78D]5)....
: match 8051 instructions
Dependencies
~2.2–3MB
~55K SLoC