Fossil

**  * removing /./
**  * removing /A/../
**
** Changes are made in-place.  Return the new name length.
*/
int file_simplify_name(char *z, int n){
  int i, j;
#ifdef __MINGW32__
  for(i=0; i<n; i++){
    if( z[i]=='\\' ) z[i] = '/';
  }
#endif
  while( n>1 && z[n-1]=='/' ){ n--; }
  for(i=j=0; i<n; i++){
    if( z[i]=='/' ){
      if( z[i+1]=='/' ) continue;
      if( z[i+1]=='.' && i+2<n && z[i+2]=='/' ){
        i += 1;
        continue;

  blob_zero(&x);
  for(i=2; i<g.argc; i++){
    file_canonical_name(g.argv[i], &x);
    printf("%s\n", blob_buffer(&x));
    blob_reset(&x);
  }
}

/*
** Return TRUE if the given filename is canonical.
**
** Canonical names are full pathnames using "/" not "\" and which
** contain no "/./" or "/../" terms.
*/
int file_is_canonical(const char *z){
  int i;
  if( z[0]!='/'
#ifdef __MINGW32__
    && (z[0]==0 || z[1]!=':' || z[2]!='/')
#endif
  ) return 0;

  for(i=0; z[i]; i++){
    if( z[i]=='\\' ) return 0;
    if( z[i]=='/' ){
      if( z[i+1]=='.' ){
        if( z[i+2]=='/' || z[i+2]==0 ) return 0;
        if( z[i+2]=='.' && (z[i+3]=='/' || z[i+3]==0) ) return 0;
      }
    }
  }
  return 1;
}

/*
** Compute a pathname for a file or directory that is relative
** to the current directory.
*/
void file_relative_name(const char *zOrigName, Blob *pOut){
  char *zPath;