#include <unistd.h>
#include <sys/types.h>
#include "busybox.h"
-#define BB_DECLARE_EXTERN
-#define bb_need_write_error
-#include "messages.c"
-static const int ASCII = 0377;
+/* This must be a #define, since when DODEBUG and BUFFERS_GO_IN_BSS are
+ * enabled, we otherwise get a "storage size isn't constant error. */
+#define ASCII 0377
-/* some glabals shared across this file */
+/* some "globals" shared across this file */
static char com_fl, del_fl, sq_fl;
static short in_index, out_index;
/* these last are pointers to static buffers declared in tr_main */
}
}
-static unsigned int expand(char *arg, register unsigned char *buffer)
+/* supported constructs:
+ * Ranges, e.g., [0-9] ==> 0123456789
+ * Escapes, e.g., \a ==> Control-G
+ */
+static unsigned int expand(const char *arg, register unsigned char *buffer)
{
unsigned char *buffer_start = buffer;
int i, ac;
ac = *arg++;
while (i <= ac)
*buffer++ = i++;
- arg++; /* Skip ']' */
+ arg++; /* Skip the assumed ']' */
} else
*buffer++ = *arg++;
}
{
register unsigned char *ptr;
int output_length=0, input_length;
- int index = 1;
+ int idx = 1;
int i;
RESERVE_BB_BUFFER(output, BUFSIZ);
RESERVE_BB_BUFFER(input, BUFSIZ);
pinvec = invec;
poutvec = outvec;
- if (argc > 1 && argv[index][0] == '-') {
- for (ptr = (unsigned char *) &argv[index][1]; *ptr; ptr++) {
+ if (argc > 1 && argv[idx][0] == '-') {
+ for (ptr = (unsigned char *) &argv[idx][1]; *ptr; ptr++) {
switch (*ptr) {
case 'c':
com_fl = TRUE;
show_usage();
}
}
- index++;
+ idx++;
}
for (i = 0; i <= ASCII; i++) {
vector[i] = i;
invec[i] = outvec[i] = FALSE;
}
- if (argv[index] != NULL) {
- input_length = expand(argv[index++], input);
+ if (argv[idx] != NULL) {
+ input_length = expand(argv[idx++], input);
if (com_fl)
input_length = complement(input, input_length);
- if (argv[index] != NULL) {
- if (*argv[index] == '\0')
+ if (argv[idx] != NULL) {
+ if (*argv[idx] == '\0')
error_msg_and_die("STRING2 cannot be empty");
- output_length = expand(argv[index], output);
+ output_length = expand(argv[idx], output);
map(input, input_length, output, output_length);
}
for (i = 0; i < input_length; i++)