c-ipfs/include/ipfs/path/path.h

#ifndef IPFS_PATH_H
   #define IPFS_PATH_H

   char *ErrPath[] = {
       NULL,
       // ErrBadPath is returned when a given path is incorrectly formatted
       "invalid 'ipfs ref' path",
       // Paths after a protocol must contain at least one component
       "path must contain at least one component",
       "TODO: ErrCidDecode",
       NULL,
       "no link named %s under %s"
   };

   enum {
       ErrBadPath = 1,
       ErrNoComponents,
       ErrCidDecode,
       ErrNoLink,
       ErrNoLinkFmt
   } PathErrs;

   char* PathFromCid (struct Cid *c);
   char** SplitN (char *p, char *delim, int n);
   char** Segments (char *p);
   int SegmentsLength (char **s);
   void FreeSegments (char ***s);
   int IsJustAKey (char *p);
   int PopLastSegment (char **str, char *p);
   char *PathFromSegments(char *prefix, char **seg);
   int ParseCidToPath (char *dst, char *txt);
   int ParsePath (char *dst, char *txt);
   int PathIsValid (char *p);
#endif // IPFS_PATH_H