Emacs Stack Exchange
Emacs Stack Exchange

Questions tagged [hexl-mode]

13 questions
8
votes
2 answers

Make emacs automatically open binary files in hexl-mode

How can I make emacs automatically open binary files in hexl-mode? It's probably sufficient to define "binary" as "contains a null byte" (I suppose https://github.com/audreyr/binaryornot could be used if that ends up being an insufficient…
asmeurer
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7
votes
2 answers

How to search for a sequence of bytes in hexl-mode?

Is it possible to search for a byte sequence in hexl-mode and possibly highlight it? E.g. in the file below I want to search the byte sequence f9beb4d9. isearch does not work because it searches the presentation in the buffer and not the original…
gdkrmr
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6
votes
1 answer

Batch loading binary files

I just discovered vlf-mode (View Large Files) and I am using it to view a large binary file in hexl-mode and read certain metadata from headers within the file. It works great, with one exception. When I move to another "batch" within the file,…
nispio
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5
votes
3 answers

How can I convert hexidecimal values to base 10 in hexl-mode?

A nice feature of viewing binary files with hexl-mode is it displays the equivalent ASCII values to the right of your hexidecimal lines. Is there a way to make hexl-mode treat hex values as floats, doubles, or some other format instead of ASCII? If…
holocronweaver
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4
votes
2 answers

Enter hex numbers continuously in hexl-mode

In hexl-mode how can I make Emacs enter a state where it takes everything I enter as hex input until I tell it to stop? Eg. I want to tap "A", "B", "1", "0", etc., and have this entered as $AB, $10, etc. in the binary file, be able to cursor around,…
forthrin
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3
votes
1 answer

Meaningful Copy/Paste in hexl-mode

Copy/Paste seems broken for hexl-mode, eg. M-w copies the hex tables to the clipboard, rather useless. Since hexl-mode has overwrite-mode by default, how can the following be implemented? M-w should copy marked binary data to the clipboard C-y…
forthrin
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3
votes
1 answer

Hexl-mode with colors?

I have just been using Hexl-mode to investigate some binary files. What I would like though, is some way of highlighting the byte under consideration: at the moment the line and column indices are highlighted. It would be very helpful if the…
Alasdair McAndrew
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2
votes
1 answer

Adjust columns in Hexl-Mode?

By default, it looks like hexl-mode shows 16-bytes per row as the column numbers range from 0x0 - 0xf. Is there a way to adjust how many byte are displayed per row? E.g. 8-byes per row.
Joe
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2
votes
2 answers

How to convert a single character to its hex value?

I have a character, e.g. O, and I want to convert it to its hexadecimal encoded value. The result must be 4f. How can I do this in Emacs 26.1?
a_subscriber
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1
vote
1 answer

config hex mode to show data byte by byte

By default, the hexl mode will show binary data two bytes by two bytes as below: 00000000: 0000 0020 6674 7970 6973 6f6d 0000 0200 ... ftypisom.... Is it possible to change the style to show data byte by byte? just like below: 00000000: 00 00 00…
lucky1928
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1
vote
2 answers

Moving forward / backward using a hexadecimal offset

There is hexl-forward-char which lets me move forward/backward specifying a decimal offset. And there is also hexl-goto-hex-address to specify an absolute location using a hexadecimal number. Is there perhaps also something builtin that lets me move…
Evgeniy Berezovsky
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0
votes
1 answer

Is it Possible to automate file editing using emacs?

So what i am trying to achieve is the auto-editing of hex files. For example - The user enters a hex address, and the hex value to replace at that address. This change is to be applied to 10 different binary files Can anyone point me in the…
TheArmKing
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0
votes
2 answers

Can we just see the Hex code without preview in hexl-mode?

I would like to use the hexl-mode but without the ASCII characters printed on the right side as it is mostly gibberish and not a very helpful feature for me. Is there a way to achieve that? For example: 00000000: 4672 6564 7269 636b 0000 0000 0000…
Nishant
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