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ripplec.c
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C/C++ Source or Header
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1999-04-15
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1KB
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44 lines
/*
New, improved, efficient, flexible ripple program.
Usage: ripple [ w [ l ] ]
w = screen line width, default 80, must be > 0.
l = how many lines to display, default 1000, must be > 0.
*/
char *p =
" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]\
^_`abcdefghijklmnopqrstuvwxyz{|}~ !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGH\
IJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~";
char *crlf = "\015\012";
main(argc,argv) int argc; char *argv[]; {
int i, j, k, x;
int w = 80;
int l = 1000;
if (argc > 1) /* User-specified width */
w = atoi(argv[1]);
if (argc > 2) /* User-specified number of lines */
l = atoi(argv[2]);
if (w < 1 || l < 1) /* Quit upon conversion error */
exit(1);
for (j = i = 0; i < l; i++) { /* Ripple loop */
/*
write(1, p+j, w);
write(1, crlf, 2);
*/
for (k = 0; k < w; k++) {
x = *(p+j+k);
printf("%c[3%c;4%cm%c",27,
(char)((8 - (x % 8)) + '0'),
(char)((x % 8) + '0'),
x);
}
printf("\n");
if (++j > 94) j = 0;
}
printf("%c[0m",27);
}