int system_start(void) {
const char *command;
char *argv[10];
int argc;
const struct cmd *cmd;
setup_tty(OPTION_STRING_GET(tty_dev));
array_foreach(command, script_commands, ARRAY_SIZE(script_commands)) {
argc = cmdline_tokenize((char *)command, argv);
if (0 == strncmp(argv[0], "pthread", 7)) {
cmd = cmd_lookup(argv[1]);
continue;
}
cmd = cmd_lookup(argv[0]);
cmd_exec(cmd, argc, argv);
}
void cmdline_build(Cmdline *cmdline, char *line)
{
log_msg("CMDSTR", "cmdline_build");
cmdline->lvl = 0;
cmdline->line = strdup(line);
cmdline->len = strlen(line);
cmdline->err = false;
cmdline->cont = false;
QUEUE_INIT(&cmdline->refs);
utarray_new(cmdline->cmds, &cmd_icd);
utarray_new(cmdline->tokens, &list_icd);
utarray_new(cmdline->vars, &list_icd);
utarray_new(cmdline->arys, &ut_int_icd);
cmdline_tokenize(cmdline);
/* parse until empty */
Token *word = NULL;
do
word = cmdline_parse(cmdline, word, cmdline->cmds);
while (word);
}
static Token* cmdline_parse(Cmdline *cmdline, Token *word, UT_array *parent)
{
char ch;
bool seek;
Cmdstr cmd = {.ed = 0};
if (word)
cmd.st = word->start;
QUEUE *stack = &cmd.stack;
QUEUE_INIT(stack);
cmd.args = list_new(cmdline);
stack_push(stack, cmd.args);
Token *headref = stack_head(stack);
utarray_new(cmd.chlds, &chld_icd);
check_flags(cmdline, &cmd);
int idx = 0;
while ((word = (Token*)utarray_next(cmdline->tokens, word))) {
char *str = token_val(word, VAR_STRING);
if (word->quoted) {
push(*word, stack, word->start);
pop(stack, cmdline, &idx);
continue;
}
switch(ch = str[0]) {
case '(':
cmdline->lvl++;
word = cmdline_parse(cmdline, word, cmd.chlds);
((Cmdstr*)utarray_back(cmd.chlds))->idx = idx - 1;
if (!word)
goto breakout;
break;
case ')':
if (cmdline->lvl < 1)
break;
cmdline->lvl--;
cmd.ed = word->start;
goto breakout;
case '[':
push(list_new(cmdline), stack, word->start);
stack_head(stack)->start = word->start;
break;
case ']':
if (!valid_arry(cmdline, stack, headref))
break;
stack_head(stack)->end = word->end;
push_arry_container(cmdline, headref, word);
pop(stack, cmdline, &idx);
break;
case '|':
if (cmdline->lvl < 1) {
cmd.bar = true;
cmd.ed = word->start;
goto breakout;
}
/*FALLTHROUGH*/
case '.':
case ':':
case ',':
break;
case '%':
case '$':
word = valid_var(cmdline, word, ch);
case '!':
if (valid_exec(cmdline, &cmd, word))
break;
/*FALLTHROUGH*/
default:
seek = seek_ahead(cmdline, stack, word);
push(*word, stack, word->start);
if (!seek)
pop(stack, cmdline, &idx);
}
}
breakout:
while (!QUEUE_EMPTY(stack))
stack_pop(stack);
utarray_push_back(parent, &cmd);
return word;
}
void cmdline_build_tokens(Cmdline *cmdline, char *line)
{
log_msg("CMDSTR", "cmdline_build_tokens");
SWAP_ALLOC_PTR(cmdline->line, strdup(line));
Token *word = NULL;
while ((word = (Token*)utarray_next(cmdline->tokens, word)))
free(word->var.vval.v_string);
utarray_clear(cmdline->tokens);
cmdline_tokenize(cmdline);
}
