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