/* Parses input command and puts args into arg array.
Returns number of arguments on success, -1 on failure. */
static int parse_command(const char *input, char (*args)[MAX_COMMAND_LENGTH])
{
char *cmd = strdup(input);
if (cmd == NULL) {
exit(EXIT_FAILURE);
}
int num_args = 0;
int i = 0; /* index of last char in an argument */
/* characters wrapped in double quotes count as one arg */
while (num_args < MAX_NUM_ARGS) {
int qt_ofst = 0; /* set to 1 to offset index for quote char at end of arg */
if (*cmd == '\"') {
qt_ofst = 1;
i = char_find(1, cmd, '\"');
if (cmd[i] == '\0') {
free(cmd);
return -1;
}
} else {
i = char_find(0, cmd, ' ');
}
memcpy(args[num_args], cmd, i + qt_ofst);
args[num_args++][i + qt_ofst] = '\0';
if (cmd[i] == '\0') { /* no more args */
break;
}
char tmp[MAX_COMMAND_LENGTH];
snprintf(tmp, sizeof(tmp), "%s", &cmd[i + 1]);
strcpy(cmd, tmp); /* tmp will always fit inside cmd */
}
free(cmd);
return num_args;
}
/* Parses input command and puts args into arg array.
Returns number of arguments on success, -1 on failure. */
static int parse_command(WINDOW *w, ToxWindow *self, const char *input, char (*args)[MAX_STR_SIZE])
{
char *cmd = strdup(input);
if (cmd == NULL)
exit_toxic_err("failed in parse_command", FATALERR_MEMORY);
int num_args = 0;
int i = 0; /* index of last char in an argument */
/* characters wrapped in double quotes count as one arg */
while (num_args < MAX_NUM_ARGS) {
int qt_ofst = 0; /* set to 1 to offset index for quote char at end of arg */
if (*cmd == '\"') {
qt_ofst = 1;
i = char_find(1, cmd, '\"');
if (cmd[i] == '\0') {
const char *errmsg = "Invalid argument. Did you forget a closing \"?";
line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, errmsg);
free(cmd);
return -1;
}
} else {
i = char_find(0, cmd, ' ');
}
memcpy(args[num_args], cmd, i + qt_ofst);
args[num_args++][i + qt_ofst] = '\0';
if (cmd[i] == '\0') /* no more args */
break;
char tmp[MAX_STR_SIZE];
snprintf(tmp, sizeof(tmp), "%s", &cmd[i + 1]);
strcpy(cmd, tmp); /* tmp will always fit inside cmd */
}
free(cmd);
return num_args;
}
