42 lines
672 B
C
42 lines
672 B
C
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#include <stdio.h>
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const char *usage = "\
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wrap - wrap a text file.\n\
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Usage: wrap <infile> <outfile>\n";
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int main(int argc, char **argv)
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{
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if ( argc < 3 ) {
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printf("%s", usage);
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return 1;
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}
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FILE *in = fopen(argv[1], "r");
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FILE *out = fopen(argv[2], "w");
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int cn = 0;
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char c = 0x00;
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if ( !in || !out ) {
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printf("Failed to open input/output file.\n");
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in ? fclose(in) : 0 ;
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out ? fclose(out) : 0 ;
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return 1;
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}
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while ( !feof(in) ) {
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c = fgetc(in);
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if ( cn > 60 &&
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( c == ' ' || c == '\n' || c == '\t' )) {
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fputc('\n', out);
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cn = 0;
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if ( c != '\t' ) continue;
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}
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fputc(c, out);
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cn++;
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}
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fclose(in);
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fclose(out);
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return 0;
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}
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