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#define _POSIX_C_SOURCE 2
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
static int plaintext(const char *path)
{
FILE *f = stdin;
if (path && strcmp(path, "-") != 0) {
f = fopen(path, "rb");
if (f == NULL) {
perror(path);
return 1;
}
}
int c = 0;
while ((c = fgetc(f)) != EOF) {
if (c == '\033') {
c = fgetc(f); /* read '[' */
c = '\033';
while (c != EOF && ! (0x40 <= c && c <= 0x7e)) {
c = fgetc(f);
}
continue;
}
if (iscntrl(c) && !isspace(c)) {
continue;
}
putchar(c);
}
if (f != stdin) {
fclose(f);
}
return 0;
}
int main(int argc, char *argv[])
{
int c;
while ((c = getopt(argc, argv, "")) != -1) {
switch (c) {
default:
return 1;
}
}
if (optind >= argc) {
return plaintext(NULL);
}
int r = 0;
for (int i = optind; i < argc; i++) {
r |= plaintext(argv[i]);
}
return r;
}
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