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tdebase/konsole/tests/ripple.c

30 lines
1000 B

/*
Ripple test.
Usage: ripple [ w [ l ] ]
w = screen line width, default 80, must be > 0, max 132.
l = how many lines to display, default 1000, must be > 0.
Author: Frank da Cruz, Columbia University, 1995.
*/
char *crlf = "\015\012";
char *p = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]\
^_`abcdefghijklmnopqrstuvwxyz{|}~ !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGH\
IJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ !\"#$%&'()*+,-./012\
3456789:;<=>?@ABCD";
main(argc,argv) int argc; char *argv[]; {
int i, j, w = 80, 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 || w > 132) /* Quit upon conversion error */
exit(1);
for (j = i = 0; i < l; i++) { /* Ripple loop */
write(1, p+j, w);
write(1, crlf, 2);
if (++j > 94) j = 0;
}
}