95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
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/*
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Copyright 2011 Vincent Batts, Vienna, VA, USA
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All rights reserved.
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Redistribution and use of this source, with or without modification, is
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permitted provided that the following conditions are met:
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1. Redistributions of this source must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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const int WRAP = 20;
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const char* FG_ESCAPE = "\x1b[38;5;";
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const char* BG_ESCAPE = "\x1b[48;5;";
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const char* CLEAR = "\x1b[0m";
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// Color Tone:
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// We set it up here so others can use it.
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// 0 is black, so we'll steer from that.
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int tone = 0;
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void set_escape_clear()
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{
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printf("%s", CLEAR);
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}
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void set_escape_color(int color)
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{
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// "\x1b[38;5;123m"
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printf("%s%dm", FG_ESCAPE, color);
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}
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void cleanup(int sig)
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{
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set_escape_clear();
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signal(sig, SIG_DFL);
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}
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int main()
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{
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int count = 0;
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int i;
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// This way we won't leave a painted mess behind ourselves :)
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// FIXME: SIGPIPE is not doing as it should :(
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signal( SIGINT, cleanup);
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signal( SIGPIPE, cleanup);
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signal( SIGQUIT, cleanup);
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signal( SIGHUP, cleanup);
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signal( SIGABRT, cleanup);
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signal( SIGCHLD, cleanup);
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signal( SIGUSR1, cleanup);
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signal( SIGUSR2, cleanup);
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for (i = 0; i < 256; i++)
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{
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set_escape_color(tone);
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printf("%4.3d", tone);
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tone++;
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count++;
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if (count == WRAP)
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{
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printf("\n");
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count = 0 ;
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}
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}
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set_escape_clear();
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printf("\n");
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return 0;
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}
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