int numTreeInfoInGroup(TreeInfo *);
int posTreeInfo(TreeInfo *);
TreeInfo *getTreeInfoFromPos(TreeInfo *, int);
-TreeInfo *getTreeInfoFromFilename(TreeInfo *, char *);
+TreeInfo *getTreeInfoFromIdentifier(TreeInfo *, char *);
void dumpTreeInfo(TreeInfo *, int);
void sortTreeInfo(TreeInfo **,
int (*compare_function)(const void *, const void *));