| /* See LICENSE file for copyright and license details. */ |
| #include <stdio.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include "text.h" |
| #include "util.h" |
| |
| static void |
| usage(void) |
| { |
| eprintf("usage: %s [file ...]\n", argv0); |
| } |
| |
| static void |
| rev(FILE *fp) |
| { |
| static char *line = NULL; |
| static size_t size = 0; |
| size_t i; |
| ssize_t n; |
| int lf; |
| |
| while ((n = getline(&line, &size, fp)) > 0) { |
| lf = n && line[n - 1] == '\n'; |
| i = n -= lf; |
| for (n = 0; i--;) { |
| if ((line[i] & 0xC0) == 0x80) { |
| n++; |
| } else { |
| fwrite(line + i, 1, n + 1, stdout); |
| n = 0; |
| } |
| } |
| if (n) |
| fwrite(line, 1, n, stdout); |
| if (lf) |
| fputc('\n', stdout); |
| } |
| } |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| FILE *fp; |
| int ret = 0; |
| |
| ARGBEGIN { |
| default: |
| usage(); |
| } ARGEND |
| |
| if (!argc) { |
| rev(stdin); |
| } else { |
| for (; *argv; argc--, argv++) { |
| if (!strcmp(*argv, "-")) { |
| *argv = "<stdin>"; |
| fp = stdin; |
| } else if (!(fp = fopen(*argv, "r"))) { |
| weprintf("fopen %s:", *argv); |
| ret = 1; |
| continue; |
| } |
| rev(fp); |
| if (fp != stdin && fshut(fp, *argv)) |
| ret = 1; |
| } |
| } |
| |
| ret |= fshut(stdin, "<stdin>") | fshut(stdout, "<stdout>"); |
| |
| return ret; |
| } |