Bash - changing a color of a substring Post: 302597709

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Top Forums Shell Programming and Scripting Bash - changing a color of a substring Post 302597709 by xqwzts on Saturday 11th of February 2012 03:06:10 PM

02-11-2012

Registered User

Bash - changing a color of a substring

Hello!

I need to write a bash script for my university classes, and I came up with an idea of a program that would test the speed of typing - there is some random text that you have to rewrite, and the script measures time, number of mistakes etc. The text would be visible on the screen all the time, and I would like to dynamically refresh it and change the color of correctly written characters to green (or to red - for those which are wrong). This would require some way of manipulating a color of a single character in a string - is something like that even possible?

I was thinking about something like inserting $(tput setaf 1)/some_character/$(tput sgr0)" on a specified position of a string - let's say I have a string "abcd", and I want one of the characters (for example, the one on the position 2 - in this case it would be c) to be green. Can something like that be done?

I will be very grateful for any suggestions.
PS. Sorry for my English, if there are any mistakes.

xqwzts

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dxmcolormixsetnewcolor

DXmColorMixSetNewColor(3X)												DXmColorMixSetNewColor(3X)

NAME

       DXmColorMixSetNewColor - Sets the new color red, green, and blue values in the color mixing widget.

SYNOPSIS

       void DXmColorMixSetNewColor(
	       DXmColorMixWidget cmw,
	       unsigned short red,
	       unsigned short green,
	       unsigned short blue );

PARAMETERS

       The  identifier	(widget ID) of the color mixing widget.  The new color red value. The value is expressed as an X color value (0 to 65535).
       The new color green value. The value is expressed as an X color value (0 to 65535).  The new color blue value. The value is expressed as an
       X color value (0 to 65535).

       A  complete  list  of  all the X color values available to you is located on your system.  To find it, type the following command: % find /
       -name '*rgb*' -print

DESCRIPTION

       The DXmColorMixSetNewColor routine allows the application or a user-supplied color mixer subwidget to pass the current color value  to  the
       color  mixing widget.  Note that your application will perform this operation faster if you call this routine instead of the Intrinsic rou-
       tine XtSetValues.

SEE ALSO

       DXmColorMixGetNewColor(3X), DXmCreateColorMix(3X), DXmCreateColorMixDialog(3X)

															DXmColorMixSetNewColor(3X)