struct terrace_linedata_s {
  char type;
  unsigned int level;
};
typedef struct terrace_linedata_s terrace_linedata_t;

void terrace_parse_line(char* line, terrace_linedata_t *lineData) {
  char type = 0;
  unsigned int level = 0;

  if (line[0] == '\n') {
    if (lineData->type == 1) level++;
    if (lineData->type == 0) level = lineData->level;
  } else {
    type = 1;
    while(line[level] == ' ' && level <= lineData->level + 1) ++level;
  }

  lineData->type = type;
  lineData->level = level;
}