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35 lines
1.0 KiB
C
35 lines
1.0 KiB
C
/*
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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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