Another binary manipulation thread. Post: 302854921

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Top Forums UNIX for Advanced & Expert Users Another binary manipulation thread. Post 302854921 by DGPickett on Wednesday 18th of September 2013 04:03:10 PM

09-18-2013

Registered User

All the 256 holes are always taken, so if your milieu does not have a limited character set, then you are right, the only escape is into longer strings for short characters, but then only context tells you that is the sort of file you have. That's why JAVA and xml use UTF-8 and label the content type. It started as a 'code page' discussion, a.k.a "what drum is on the printer".

There are apps for UNIX around that let you deal with image files like jpg and gif in text files of text numbers, like a decimal dump of a bmp file. I suppose if you run binary through the right dump you can then process it in shell back to a binary file.

Last edited by DGPickett; 09-18-2013 at 05:37 PM..

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img-bmp

img-bmp(n)																img-bmp(n)

__________________________________________________________________________________________________________________________________________________

NAME

       img-bmp - Img, Windows Bitmap Format (bmp)

SYNOPSIS

       package require Tk

       package require img::bmp  ?1.4?

       image create photo ?name? ?options?

_________________________________________________________________

DESCRIPTION

       The  package  img::bmp  is a sub-package of Img. It can be loaded as a part of the complete Img support, via package require Img, or on its
       own, via package require img::bmp.

       Like all packages of Img it does not provide new commands, but extends the existing Tk command image so that it supports  files	containing
       raster images in the Windows Bitmap Format (bmp). More specifically img::bmp extends Tk's photo image type.

       The name of the new format handler is bmp.  This handler does not provide additional configuration options.

       All of the above means that in a call like

       image create photo ?name? ?options?

       [1]    Image data in bmp format (options -data and -file) is detected automatically.

       [2]    The format name bmp is recognized by the option -format.

SEE ALSO

       img-bmp,  img-dted,  img-gif,  img-ico, img-intro, img-jpeg, img-pcx, img-pixmap, img-png, img-ppm, img-ps, img-raw, img-sgi, img-sun, img-
       tga, img-tiff, img-window, img-xbm, img-xpm

KEYWORDS

       bmp, image handling, tk

COPYRIGHT

       Copyright (c) 1995-2009 Jan Nijtmans <nijtmans@users.sourceforge.net>

Img									1.4								img-bmp(n)