int line_processor (struct line_read_state * state, char * line, int len, int counter, int err_code){
if(err_code != _GETLINE_NONE && err_code != _GETLINE_EOF) return -1;
if(len > 0){
state->line_counter++;
if(state->line_counter == 1){
return init_complex_pipe(&state->pipe, create_exec_args(line));
}else{
struct str_splited_pair pointers [3];
int cnt = _split(line, " ", pointers, 2);
if(cnt < 2){
_print(STDERR_FILENO, "Wrong format!\n");
return 0;
}
*pointers[0].end = '\0';
*pointers[1].end = '\0';
if(strcmp(pointers[0].start, "->") == 0){
return bind_left(&state->pipe, create_exec_args(pointers[1].start));
}else if(strcmp(pointers[0].start, "<-") == 0){
return bind_right(&state->pipe, create_exec_args(pointers[1].start));
}else{
_print(STDERR_FILENO, "Wrong format!\n");
return 0;
}
}
}else{
return 1;
}
return 0;
}
INLINE S&&
operator<<(S&& s, T&& t)
{
return
fwd <S>(s) << "(",
loop[", "](bind_left(fwd <S>(s)), fwd <T>(t)),
fwd <S>(s) << ")";
}
