Re: Inserting hex characters
On Wed, 2006-07-26 at 21:53 +0300, Yakov Lerner wrote: > If you add '-p' option to 'xxd' (see man xxd), like this: > au BufReadPost *.bin if &bin | %!xxd -p > then you different hex format (without offsets) where > you can easily add and remove bytes. The > downside of 'xxd -p' format is, it doesn't show ascii part, > only hex. > > I think some other reversible convertors exist, > (vis/unvis ?) that convert only unprintable chars and leave > printable chars untact. In this conversion, it's easy to > add and remove chars, too. > > Yakov Thanks for the info.
Re: Inserting hex characters
On 7/26/06, Trent Gamblin <[EMAIL PROTECTED]> wrote: On Wed, 2006-07-26 at 09:04 -0500, Tim Chase wrote: > For doing binary editing in vim (a rare occurance, when I'm not > just using a proper hex-editor), I tend to use the xxd that comes > with the windows version (and is usually available on most Linux > systems I've used) for transforming into an ascii representation > of the hex, and translating back. Details are found at The problem I have with xxd is that I don't know a way to insert and delete characters. If you add '-p' option to 'xxd' (see man xxd), like this: au BufReadPost *.bin if &bin | %!xxd -p then you different hex format (without offsets) where you can easily add and remove bytes. The downside of 'xxd -p' format is, it doesn't show ascii part, only hex. I think some other reversible convertors exist, (vis/unvis ?) that convert only unprintable chars and leave printable chars untact. In this conversion, it's easy to add and remove chars, too. Yakov
Re: Inserting hex characters
On Wed, 2006-07-26 at 09:04 -0500, Tim Chase wrote: > For doing binary editing in vim (a rare occurance, when I'm not > just using a proper hex-editor), I tend to use the xxd that comes > with the windows version (and is usually available on most Linux > systems I've used) for transforming into an ascii representation > of the hex, and translating back. Details are found at The problem I have with xxd is that I don't know a way to insert and delete characters.
Re: Inserting hex characters
Tim Chase wrote: Careful, Tim: UTF-8 is unsuited to binary editing, because you can't enter a byte >127 by itself in UTF-8. True enough. I tend not to use UTF-8, so I defer to your far greater experience/knowledge on the matter. For doing binary editing in vim (a rare occurance, when I'm not just using a proper hex-editor), I tend to use the xxd that comes with the windows version (and is usually available on most Linux systems I've used) for transforming into an ascii representation of the hex, and translating back. Details are found at :help hex-editing -tim PS: a belated welcome back to the list, Tonyhope you had a relaxing time away. When compiling Vim, on both Unix and Windows the default is to compile xxd together with Vim. It ends up under src/xxd. Under Unix, "make install" copies it to the same directory as the Vim binary (by default /usr/local/bin). Yes, I had. You can see some photos I made over there by browsing to http://tonymec.deviantart.com/gallery/ (the latest-but-one photos in the gallery: the "Pujol d'Adalt" series). Click a thumbnail to enlarge it, then click the picture for full view. Best regards, Tony.
Re: Inserting hex characters
Careful, Tim: UTF-8 is unsuited to binary editing, because you can't enter a byte >127 by itself in UTF-8. True enough. I tend not to use UTF-8, so I defer to your far greater experience/knowledge on the matter. For doing binary editing in vim (a rare occurance, when I'm not just using a proper hex-editor), I tend to use the xxd that comes with the windows version (and is usually available on most Linux systems I've used) for transforming into an ascii representation of the hex, and translating back. Details are found at :help hex-editing -tim PS: a belated welcome back to the list, Tonyhope you had a relaxing time away.
Re: Inserting hex characters
On Wed, 2006-07-26 at 15:24 +0200, A.J.Mechelynck wrote: > That is documented under ":help i_CTRL-V_digit", which we both > mentioned. Nulls are represented by linefeeds internally. To enter a > linefeed, break the line. Sorry, should have read that first. Thanks again!
Re: Inserting hex characters
Trent Gamblin wrote: Thank you both for the reply. But when I type ^V010 or ^Vx0a it enters <00> instead of <0a> (LF). Does anyone know why? That is documented under ":help i_CTRL-V_digit", which we both mentioned. Nulls are represented by linefeeds internally. To enter a linefeed, break the line. Best regards, Tony.
Re: Inserting hex characters
Thank you both for the reply. But when I type ^V010 or ^Vx0a it enters <00> instead of <0a> (LF). Does anyone know why?
Re: Inserting hex characters
Tim Chase wrote: I'm editing binary files with Vim using "set display=uhex" and I was wondering if there's a way to insert characters given their scancode. Something like what I used to do in DOS by holding Alt then typing the number of the character to enter? Sounds like you're looking for what's described at :help i_CTRL-V_digit where you can, in insert-mode, type control+V followed by -a decimal number -an "x" followed by a hex number -a "u" followed by a 4-hexchar unicode sequence -a "U" followed by an 8-hexchar unicode sequence HTH, -tim Careful, Tim: UTF-8 is unsuited to binary editing, because you can't enter a byte >127 by itself in UTF-8. Best regards, Tony.
Re: Inserting hex characters
I'm editing binary files with Vim using "set display=uhex" and I was wondering if there's a way to insert characters given their scancode. Something like what I used to do in DOS by holding Alt then typing the number of the character to enter? Sounds like you're looking for what's described at :help i_CTRL-V_digit where you can, in insert-mode, type control+V followed by -a decimal number -an "x" followed by a hex number -a "u" followed by a 4-hexchar unicode sequence -a "U" followed by an 8-hexchar unicode sequence HTH, -tim
Re: Inserting hex characters
Trent Gamblin wrote: I'm editing binary files with Vim using "set display=uhex" and I was wondering if there's a way to insert characters given their scancode. Something like what I used to do in DOS by holding Alt then typing the number of the character to enter? In Vim it's not the keyboard "geographical" scan code (e.g. 1 for Escape) but the character value in alpha, hex, decimal or octal. Example for hex: Assuming 'fileencoding' (or, if the latter is empty, 'encoding') is set to Latin1, not UTF-8: ^Vxhh in Insert/Replace mode, or after hitting r (replace) in Normal mode, where: ^V means "hit Ctrl-V", unless mswin.vim maps Ctrl-V to the paste operation, in which case it means "hit Ctrl-Q". x is the lowercase letter iks. hh is the hex value You'll see the partial sequence near the bottom right of the Vim screen if 'showcmd' is on, and the character will appear in your file after you hit the 2nd hex digit. See :help i_CTRL-V_digit :help i_CTRL-V Best regards, Tony.
