#include "parser.h"

#include "../lib/malloc/malloc.h"
#include "../lib/cstr/cstr.h"

#include "../lib/sys/write.h"

char **__new_argv(char *exp);
void __free_argv(char **argv);

expression_list_t *new_expression_from_line(char *line)
{

	u64 n = cstr_split(line, '|');
	char *current = line;
	char *next    = 0;


	for (; n > 0; --n) {
		next = (char*)next_split(current);

		strip_cstr(current, ' ');

		write(0, current, cstr_length(current));
		write(0, "\\n\n", 3);

		current = next;
	}
	return 0;
}

char **__new_argv(char *exp)
{
	u64 n = cstr_split(exp, ' ');
	char **argv = malloc(sizeof(char*) * n + 1);
	u64 i = 0;
	char *current = exp;
	char *next;

	for (; n > 0; --n) {
		next = (char*)next_split(current);
		strip_cstr(current, ' ');

		if (cstr_length(current))
			argv[i++] = current;

		current = next;
	}

	argv[i] = 0;

	return argv;
}


void __free_argv(char **argv)
{
	free(argv);
}

#ifdef PARSER_UNIT_TEST

#include "../lib/sys/execve.h"

int main() {
	const char exp[] = "/bin/ls -a -l -h";
	char **argv = __new_argv(exp);
	char **p = argv;
	char *const envp[] = { 0 };

	execve(argv[0], argv, envp);

	free(argv);
}

#endif