mirror of
https://github.com/bobbimanners/GNO-Extras.git
synced 2024-10-31 13:07:44 +00:00
45 lines
660 B
Plaintext
45 lines
660 B
Plaintext
#include <stdio.h>
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/* reverse lines of a file */
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#define N 256
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char line[N];
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FILE *input;
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main(argc,argv)
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char **argv;
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{
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register i,c;
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input = stdin;
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do {
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if(argc>1) {
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if((input=fopen(argv[1],"r"))==NULL) {
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fprintf(stderr,"rev: cannot open %s\n",
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argv[1]);
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exit(1);
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}
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}
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for(;;){
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for(i=0;i<N;i++) {
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line[i] = c = getc(input);
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switch(c) {
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case EOF:
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goto eof;
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default:
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continue;
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case '\n':
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break;
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}
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break;
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}
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while(--i>=0)
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putc(line[i],stdout);
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putc('\n',stdout);
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}
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eof:
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fclose(input);
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argc--;
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argv++;
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} while(argc>1);
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}
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