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38 lines
752 B
38 lines
752 B
#include <stdio.h>
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#include <stdlib.h>
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main(argc, argv)
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char **argv;
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{
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register c;
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int xp;
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int width;
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if ( argc != 2 ) {
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fprintf(stderr, "usage: %s width\n", argv[0]);
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exit(1);
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}
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else if ( (width=atoi(argv[1])) < 1 ) {
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fprintf(stderr, "%s: please set width to > 0\n", argv[0]);
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exit(1);
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}
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for ( xp = 1; (c = getchar()) != EOF; xp++ ) {
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while ( c & 0xC0 ) {
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/* assume that (1) the output device understands utf-8, and
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* (2) the only c & 0x80 input is utf-8.
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*/
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do {
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if ( xp <= width )
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putchar(c);
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} while ( (c = getchar()) != EOF && (c & 0x80) && !(c & 0x40) );
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++xp;
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}
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if ( c == '\n' )
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xp = 0;
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if ( xp <= width )
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putchar(c);
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}
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exit(0);
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}
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