[svn-r13288] Description:

    Fix core dump for iterating over attributes and not passing in a "starting
point".

    Update output files missed in previous checkin.  This change essentially
reverses a previous change of attribute ordering, leaving the output of h5dump
& h5ls compatible with 1.6.x

Tested on:
    Linux/32 2.6 (chicago)
    Linux/64 2.6 (chicago2)

1 files changed, 696 insertions, 696 deletions

diff --git a/tools/testfiles/treference.ddl b/tools/testfiles/treference.ddl
index b34fa8d..9a21ef7 100644
--- a/tools/testfiles/treference.ddl
+++ b/tools/testfiles/treference.ddl
@@ -3,38 +3,16 @@ Expected output for 'h5dump tattr2.h5'
 #############################
 HDF5 "tattr2.h5" {
 GROUP "/" {
-   ATTRIBUTE "array" {
-      DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+   ATTRIBUTE "string" {
+      DATATYPE  H5T_STRING {
+            STRSIZE 2;
+            STRPAD H5T_STR_NULLTERM;
+            CSET H5T_CSET_ASCII;
+            CTYPE H5T_C_S1;
+         }
       DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
       DATA {
-      (0): [ 1, 2, 3 ], [ 4, 5, 6 ]
-      }
-   }
-   ATTRIBUTE "array2D" {
-      DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-      DATA {
-      (0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
-      (1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
-      (2,0): [ 13, 14, 15 ], [ 16, 17, 18 ]
-      }
-   }
-   ATTRIBUTE "array3D" {
-      DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
-      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-      DATA {
-      (0,0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
-      (0,1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
-      (0,2,0): [ 13, 14, 15 ], [ 16, 17, 18 ],
-      (1,0,0): [ 19, 20, 21 ], [ 22, 23, 24 ],
-      (1,1,0): [ 25, 26, 27 ], [ 28, 29, 30 ],
-      (1,2,0): [ 31, 32, 33 ], [ 34, 35, 36 ],
-      (2,0,0): [ 37, 38, 39 ], [ 40, 41, 42 ],
-      (2,1,0): [ 43, 44, 45 ], [ 46, 47, 48 ],
-      (2,2,0): [ 49, 50, 51 ], [ 52, 53, 54 ],
-      (3,0,0): [ 55, 56, 57 ], [ 58, 59, 60 ],
-      (3,1,0): [ 61, 62, 63 ], [ 64, 65, 66 ],
-      (3,2,0): [ 67, 68, 69 ], [ 70, 71, 72 ]
+      (0): "ab", "de"
       }
    }
    ATTRIBUTE "bitfield" {
@@ -44,31 +22,14 @@ GROUP "/" {
       (0): 0x01, 0x02
       }
    }
-   ATTRIBUTE "bitfield2D" {
-      DATATYPE  H5T_STD_B8LE
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-      DATA {
-      (0,0): 0x01, 0x02,
-      (1,0): 0x03, 0x04,
-      (2,0): 0x05, 0x06
-      }
-   }
-   ATTRIBUTE "bitfield3D" {
-      DATATYPE  H5T_STD_B8LE
-      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+   ATTRIBUTE "opaque" {
+      DATATYPE  
+         H5T_OPAQUE;
+         OPAQUE_TAG "1-byte opaque type";
+      
+      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
       DATA {
-      (0,0,0): 0x01, 0x02,
-      (0,1,0): 0x03, 0x04,
-      (0,2,0): 0x05, 0x06,
-      (1,0,0): 0x07, 0x08,
-      (1,1,0): 0x09, 0x0a,
-      (1,2,0): 0x0b, 0x0c,
-      (2,0,0): 0x0d, 0x0e,
-      (2,1,0): 0x0f, 0x10,
-      (2,2,0): 0x11, 0x12,
-      (3,0,0): 0x13, 0x14,
-      (3,1,0): 0x15, 0x16,
-      (3,2,0): 0x17, 0x18
+      (0): 0x01, 0x02
       }
    }
    ATTRIBUTE "compound" {
@@ -88,6 +49,80 @@ GROUP "/" {
          }
       }
    }
+   ATTRIBUTE "enum" {
+      DATATYPE  H5T_ENUM {
+            H5T_STD_I32LE;
+            "RED"              0;
+            "GREEN"            1;
+         }
+      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      DATA {
+      (0): RED, RED
+      }
+   }
+   ATTRIBUTE "vlen" {
+      DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      DATA {
+      (0): (1), (2, 3)
+      }
+   }
+   ATTRIBUTE "array" {
+      DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      DATA {
+      (0): [ 1, 2, 3 ], [ 4, 5, 6 ]
+      }
+   }
+   ATTRIBUTE "integer" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      DATA {
+      (0): 1, 2
+      }
+   }
+   ATTRIBUTE "float" {
+      DATATYPE  H5T_IEEE_F32LE
+      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      DATA {
+      (0): 1, 2
+      }
+   }
+   ATTRIBUTE "string2D" {
+      DATATYPE  H5T_STRING {
+            STRSIZE 2;
+            STRPAD H5T_STR_NULLTERM;
+            CSET H5T_CSET_ASCII;
+            CTYPE H5T_C_S1;
+         }
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): "ab", "cd",
+      (1,0): "ef", "gh",
+      (2,0): "ij", "kl"
+      }
+   }
+   ATTRIBUTE "bitfield2D" {
+      DATATYPE  H5T_STD_B8LE
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): 0x01, 0x02,
+      (1,0): 0x03, 0x04,
+      (2,0): 0x05, 0x06
+      }
+   }
+   ATTRIBUTE "opaque2D" {
+      DATATYPE  
+         H5T_OPAQUE;
+         OPAQUE_TAG "1-byte opaque type";
+      
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): 0x01, 0x02,
+      (1,0): 0x03, 0x04,
+      (2,0): 0x05, 0x06
+      }
+   }
    ATTRIBUTE "compound2D" {
       DATATYPE  H5T_COMPOUND {
          H5T_STD_I8LE "a";
@@ -121,6 +156,117 @@ GROUP "/" {
          }
       }
    }
+   ATTRIBUTE "enum2D" {
+      DATATYPE  H5T_ENUM {
+            H5T_STD_I32LE;
+            "RED"              0;
+            "GREEN"            1;
+         }
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): RED, RED,
+      (1,0): RED, RED,
+      (2,0): RED, RED
+      }
+   }
+   ATTRIBUTE "vlen2D" {
+      DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): (0), (1),
+      (1,0): (2, 3), (4, 5),
+      (2,0): (6, 7, 8), (9, 10, 11)
+      }
+   }
+   ATTRIBUTE "array2D" {
+      DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
+      (1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
+      (2,0): [ 13, 14, 15 ], [ 16, 17, 18 ]
+      }
+   }
+   ATTRIBUTE "integer2D" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): 1, 2,
+      (1,0): 3, 4,
+      (2,0): 5, 6
+      }
+   }
+   ATTRIBUTE "float2D" {
+      DATATYPE  H5T_IEEE_F32LE
+      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      DATA {
+      (0,0): 1, 2,
+      (1,0): 3, 4,
+      (2,0): 5, 6
+      }
+   }
+   ATTRIBUTE "string3D" {
+      DATATYPE  H5T_STRING {
+            STRSIZE 2;
+            STRPAD H5T_STR_NULLTERM;
+            CSET H5T_CSET_ASCII;
+            CTYPE H5T_C_S1;
+         }
+      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      DATA {
+      (0,0,0): "ab", "cd",
+      (0,1,0): "ef", "gh",
+      (0,2,0): "ij", "kl",
+      (1,0,0): "mn", "pq",
+      (1,1,0): "rs", "tu",
+      (1,2,0): "vw", "xz",
+      (2,0,0): "AB", "CD",
+      (2,1,0): "EF", "GH",
+      (2,2,0): "IJ", "KL",
+      (3,0,0): "MN", "PQ",
+      (3,1,0): "RS", "TU",
+      (3,2,0): "VW", "XZ"
+      }
+   }
+   ATTRIBUTE "bitfield3D" {
+      DATATYPE  H5T_STD_B8LE
+      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      DATA {
+      (0,0,0): 0x01, 0x02,
+      (0,1,0): 0x03, 0x04,
+      (0,2,0): 0x05, 0x06,
+      (1,0,0): 0x07, 0x08,
+      (1,1,0): 0x09, 0x0a,
+      (1,2,0): 0x0b, 0x0c,
+      (2,0,0): 0x0d, 0x0e,
+      (2,1,0): 0x0f, 0x10,
+      (2,2,0): 0x11, 0x12,
+      (3,0,0): 0x13, 0x14,
+      (3,1,0): 0x15, 0x16,
+      (3,2,0): 0x17, 0x18
+      }
+   }
+   ATTRIBUTE "opaque3D" {
+      DATATYPE  
+         H5T_OPAQUE;
+         OPAQUE_TAG "1-byte opaque type";
+      
+      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      DATA {
+      (0,0,0): 0x01, 0x02,
+      (0,1,0): 0x03, 0x04,
+      (0,2,0): 0x05, 0x06,
+      (1,0,0): 0x07, 0x08,
+      (1,1,0): 0x09, 0x0a,
+      (1,2,0): 0x0b, 0x0c,
+      (2,0,0): 0x0d, 0x0e,
+      (2,1,0): 0x0f, 0x10,
+      (2,2,0): 0x11, 0x12,
+      (3,0,0): 0x13, 0x14,
+      (3,1,0): 0x15, 0x16,
+      (3,2,0): 0x17, 0x18
+      }
+   }
    ATTRIBUTE "compound3D" {
       DATATYPE  H5T_COMPOUND {
          H5T_STD_I8LE "a";
@@ -226,30 +372,6 @@ GROUP "/" {
          }
       }
    }
-   ATTRIBUTE "enum" {
-      DATATYPE  H5T_ENUM {
-            H5T_STD_I32LE;
-            "RED"              0;
-            "GREEN"            1;
-         }
-      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-      DATA {
-      (0): RED, RED
-      }
-   }
-   ATTRIBUTE "enum2D" {
-      DATATYPE  H5T_ENUM {
-            H5T_STD_I32LE;
-            "RED"              0;
-            "GREEN"            1;
-         }
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-      DATA {
-      (0,0): RED, RED,
-      (1,0): RED, RED,
-      (2,0): RED, RED
-      }
-   }
    ATTRIBUTE "enum3D" {
       DATATYPE  H5T_ENUM {
             H5T_STD_I32LE;
@@ -272,24 +394,44 @@ GROUP "/" {
       (3,2,0): RED, RED
       }
    }
-   ATTRIBUTE "float" {
-      DATATYPE  H5T_IEEE_F32LE
-      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+   ATTRIBUTE "vlen3D" {
+      DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
       DATA {
-      (0): 1, 2
+      (0,0,0): (0), (1),
+      (0,1,0): (2), (3),
+      (0,2,0): (4), (5),
+      (1,0,0): (6, 7), (8, 9),
+      (1,1,0): (10, 11), (12, 13),
+      (1,2,0): (14, 15), (16, 17),
+      (2,0,0): (18, 19, 20), (21, 22, 23),
+      (2,1,0): (24, 25, 26), (27, 28, 29),
+      (2,2,0): (30, 31, 32), (33, 34, 35),
+      (3,0,0): (36, 37, 38, 39), (40, 41, 42, 43),
+      (3,1,0): (44, 45, 46, 47), (48, 49, 50, 51),
+      (3,2,0): (52, 53, 54, 55), (56, 57, 58, 59)
       }
    }
-   ATTRIBUTE "float2D" {
-      DATATYPE  H5T_IEEE_F32LE
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+   ATTRIBUTE "array3D" {
+      DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
       DATA {
-      (0,0): 1, 2,
-      (1,0): 3, 4,
-      (2,0): 5, 6
+      (0,0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
+      (0,1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
+      (0,2,0): [ 13, 14, 15 ], [ 16, 17, 18 ],
+      (1,0,0): [ 19, 20, 21 ], [ 22, 23, 24 ],
+      (1,1,0): [ 25, 26, 27 ], [ 28, 29, 30 ],
+      (1,2,0): [ 31, 32, 33 ], [ 34, 35, 36 ],
+      (2,0,0): [ 37, 38, 39 ], [ 40, 41, 42 ],
+      (2,1,0): [ 43, 44, 45 ], [ 46, 47, 48 ],
+      (2,2,0): [ 49, 50, 51 ], [ 52, 53, 54 ],
+      (3,0,0): [ 55, 56, 57 ], [ 58, 59, 60 ],
+      (3,1,0): [ 61, 62, 63 ], [ 64, 65, 66 ],
+      (3,2,0): [ 67, 68, 69 ], [ 70, 71, 72 ]
       }
    }
-   ATTRIBUTE "float3D" {
-      DATATYPE  H5T_IEEE_F32LE
+   ATTRIBUTE "integer3D" {
+      DATATYPE  H5T_STD_I32LE
       DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
       DATA {
       (0,0,0): 1, 2,
@@ -306,24 +448,8 @@ GROUP "/" {
       (3,2,0): 23, 24
       }
    }
-   ATTRIBUTE "integer" {
-      DATATYPE  H5T_STD_I32LE
-      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-      DATA {
-      (0): 1, 2
-      }
-   }
-   ATTRIBUTE "integer2D" {
-      DATATYPE  H5T_STD_I32LE
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-      DATA {
-      (0,0): 1, 2,
-      (1,0): 3, 4,
-      (2,0): 5, 6
-      }
-   }
-   ATTRIBUTE "integer3D" {
-      DATATYPE  H5T_STD_I32LE
+   ATTRIBUTE "float3D" {
+      DATATYPE  H5T_IEEE_F32LE
       DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
       DATA {
       (0,0,0): 1, 2,
@@ -340,137 +466,82 @@ GROUP "/" {
       (3,2,0): 23, 24
       }
    }
-   ATTRIBUTE "opaque" {
-      DATATYPE  
-         H5T_OPAQUE;
-         OPAQUE_TAG "1-byte opaque type";
-      
+   DATASET "dset" {
+      DATATYPE  H5T_STD_I32LE
       DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
       DATA {
-      (0): 0x01, 0x02
-      }
-   }
-   ATTRIBUTE "opaque2D" {
-      DATATYPE  
-         H5T_OPAQUE;
-         OPAQUE_TAG "1-byte opaque type";
-      
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-      DATA {
-      (0,0): 0x01, 0x02,
-      (1,0): 0x03, 0x04,
-      (2,0): 0x05, 0x06
-      }
-   }
-   ATTRIBUTE "opaque3D" {
-      DATATYPE  
-         H5T_OPAQUE;
-         OPAQUE_TAG "1-byte opaque type";
-      
-      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-      DATA {
-      (0,0,0): 0x01, 0x02,
-      (0,1,0): 0x03, 0x04,
-      (0,2,0): 0x05, 0x06,
-      (1,0,0): 0x07, 0x08,
-      (1,1,0): 0x09, 0x0a,
-      (1,2,0): 0x0b, 0x0c,
-      (2,0,0): 0x0d, 0x0e,
-      (2,1,0): 0x0f, 0x10,
-      (2,2,0): 0x11, 0x12,
-      (3,0,0): 0x13, 0x14,
-      (3,1,0): 0x15, 0x16,
-      (3,2,0): 0x17, 0x18
+      (0): 0, 0
       }
-   }
-   ATTRIBUTE "string" {
-      DATATYPE  H5T_STRING {
-            STRSIZE 2;
-            STRPAD H5T_STR_NULLTERM;
-            CSET H5T_CSET_ASCII;
-            CTYPE H5T_C_S1;
+      ATTRIBUTE "string" {
+         DATATYPE  H5T_STRING {
+               STRSIZE 2;
+               STRPAD H5T_STR_NULLTERM;
+               CSET H5T_CSET_ASCII;
+               CTYPE H5T_C_S1;
+            }
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): "ab", "de"
          }
-      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-      DATA {
-      (0): "ab", "de"
       }
-   }
-   ATTRIBUTE "string2D" {
-      DATATYPE  H5T_STRING {
-            STRSIZE 2;
-            STRPAD H5T_STR_NULLTERM;
-            CSET H5T_CSET_ASCII;
-            CTYPE H5T_C_S1;
+      ATTRIBUTE "bitfield" {
+         DATATYPE  H5T_STD_B8LE
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): 0x01, 0x02
          }
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-      DATA {
-      (0,0): "ab", "cd",
-      (1,0): "ef", "gh",
-      (2,0): "ij", "kl"
       }
-   }
-   ATTRIBUTE "string3D" {
-      DATATYPE  H5T_STRING {
-            STRSIZE 2;
-            STRPAD H5T_STR_NULLTERM;
-            CSET H5T_CSET_ASCII;
-            CTYPE H5T_C_S1;
+      ATTRIBUTE "opaque" {
+         DATATYPE  
+            H5T_OPAQUE;
+            OPAQUE_TAG "1-byte opaque type";
+         
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): 0x01, 0x02
          }
-      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-      DATA {
-      (0,0,0): "ab", "cd",
-      (0,1,0): "ef", "gh",
-      (0,2,0): "ij", "kl",
-      (1,0,0): "mn", "pq",
-      (1,1,0): "rs", "tu",
-      (1,2,0): "vw", "xz",
-      (2,0,0): "AB", "CD",
-      (2,1,0): "EF", "GH",
-      (2,2,0): "IJ", "KL",
-      (3,0,0): "MN", "PQ",
-      (3,1,0): "RS", "TU",
-      (3,2,0): "VW", "XZ"
       }
-   }
-   ATTRIBUTE "vlen" {
-      DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-      DATA {
-      (0): (1), (2, 3)
+      ATTRIBUTE "compound" {
+         DATATYPE  H5T_COMPOUND {
+            H5T_STD_I8LE "a";
+            H5T_IEEE_F64LE "b";
+         }
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): {
+               1,
+               2
+            },
+         (1): {
+               3,
+               4
+            }
+         }
       }
-   }
-   ATTRIBUTE "vlen2D" {
-      DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-      DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-      DATA {
-      (0,0): (0), (1),
-      (1,0): (2, 3), (4, 5),
-      (2,0): (6, 7, 8), (9, 10, 11)
+      ATTRIBUTE "reference" {
+         DATATYPE  H5T_REFERENCE
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): DATASET 976 /dset , DATASET 976 /dset 
+         }
       }
-   }
-   ATTRIBUTE "vlen3D" {
-      DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-      DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-      DATA {
-      (0,0,0): (0), (1),
-      (0,1,0): (2), (3),
-      (0,2,0): (4), (5),
-      (1,0,0): (6, 7), (8, 9),
-      (1,1,0): (10, 11), (12, 13),
-      (1,2,0): (14, 15), (16, 17),
-      (2,0,0): (18, 19, 20), (21, 22, 23),
-      (2,1,0): (24, 25, 26), (27, 28, 29),
-      (2,2,0): (30, 31, 32), (33, 34, 35),
-      (3,0,0): (36, 37, 38, 39), (40, 41, 42, 43),
-      (3,1,0): (44, 45, 46, 47), (48, 49, 50, 51),
-      (3,2,0): (52, 53, 54, 55), (56, 57, 58, 59)
+      ATTRIBUTE "enum" {
+         DATATYPE  H5T_ENUM {
+               H5T_STD_I32LE;
+               "RED"              0;
+               "GREEN"            1;
+            }
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): RED, RED
+         }
       }
-   }
-   DATASET "dset" {
-      DATATYPE  H5T_STD_I32LE
-      DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-      DATA {
-      (0): 0, 0
+      ATTRIBUTE "vlen" {
+         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): (1), (2, 3)
+         }
       }
       ATTRIBUTE "array" {
          DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
@@ -479,38 +550,32 @@ GROUP "/" {
          (0): [ 1, 2, 3 ], [ 4, 5, 6 ]
          }
       }
-      ATTRIBUTE "array2D" {
-         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "integer" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
-         (1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
-         (2,0): [ 13, 14, 15 ], [ 16, 17, 18 ]
+         (0): 1, 2
          }
       }
-      ATTRIBUTE "array3D" {
-         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      ATTRIBUTE "float" {
+         DATATYPE  H5T_IEEE_F32LE
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0,0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
-         (0,1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
-         (0,2,0): [ 13, 14, 15 ], [ 16, 17, 18 ],
-         (1,0,0): [ 19, 20, 21 ], [ 22, 23, 24 ],
-         (1,1,0): [ 25, 26, 27 ], [ 28, 29, 30 ],
-         (1,2,0): [ 31, 32, 33 ], [ 34, 35, 36 ],
-         (2,0,0): [ 37, 38, 39 ], [ 40, 41, 42 ],
-         (2,1,0): [ 43, 44, 45 ], [ 46, 47, 48 ],
-         (2,2,0): [ 49, 50, 51 ], [ 52, 53, 54 ],
-         (3,0,0): [ 55, 56, 57 ], [ 58, 59, 60 ],
-         (3,1,0): [ 61, 62, 63 ], [ 64, 65, 66 ],
-         (3,2,0): [ 67, 68, 69 ], [ 70, 71, 72 ]
+         (0): 1, 2
          }
       }
-      ATTRIBUTE "bitfield" {
-         DATATYPE  H5T_STD_B8LE
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      ATTRIBUTE "string2D" {
+         DATATYPE  H5T_STRING {
+               STRSIZE 2;
+               STRPAD H5T_STR_NULLTERM;
+               CSET H5T_CSET_ASCII;
+               CTYPE H5T_C_S1;
+            }
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0): 0x01, 0x02
+         (0,0): "ab", "cd",
+         (1,0): "ef", "gh",
+         (2,0): "ij", "kl"
          }
       }
       ATTRIBUTE "bitfield2D" {
@@ -522,39 +587,16 @@ GROUP "/" {
          (2,0): 0x05, 0x06
          }
       }
-      ATTRIBUTE "bitfield3D" {
-         DATATYPE  H5T_STD_B8LE
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-         DATA {
-         (0,0,0): 0x01, 0x02,
-         (0,1,0): 0x03, 0x04,
-         (0,2,0): 0x05, 0x06,
-         (1,0,0): 0x07, 0x08,
-         (1,1,0): 0x09, 0x0a,
-         (1,2,0): 0x0b, 0x0c,
-         (2,0,0): 0x0d, 0x0e,
-         (2,1,0): 0x0f, 0x10,
-         (2,2,0): 0x11, 0x12,
-         (3,0,0): 0x13, 0x14,
-         (3,1,0): 0x15, 0x16,
-         (3,2,0): 0x17, 0x18
-         }
-      }
-      ATTRIBUTE "compound" {
-         DATATYPE  H5T_COMPOUND {
-            H5T_STD_I8LE "a";
-            H5T_IEEE_F64LE "b";
-         }
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      ATTRIBUTE "opaque2D" {
+         DATATYPE  
+            H5T_OPAQUE;
+            OPAQUE_TAG "1-byte opaque type";
+         
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0): {
-               1,
-               2
-            },
-         (1): {
-               3,
-               4
-            }
+         (0,0): 0x01, 0x02,
+         (1,0): 0x03, 0x04,
+         (2,0): 0x05, 0x06
          }
       }
       ATTRIBUTE "compound2D" {
@@ -590,6 +632,126 @@ GROUP "/" {
             }
          }
       }
+      ATTRIBUTE "reference2D" {
+         DATATYPE  H5T_REFERENCE
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+         DATA {
+         (0,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (1,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (2,0): DATASET 976 /dset , DATASET 976 /dset 
+         }
+      }
+      ATTRIBUTE "enum2D" {
+         DATATYPE  H5T_ENUM {
+               H5T_STD_I32LE;
+               "RED"              0;
+               "GREEN"            1;
+            }
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+         DATA {
+         (0,0): RED, RED,
+         (1,0): RED, RED,
+         (2,0): RED, RED
+         }
+      }
+      ATTRIBUTE "vlen2D" {
+         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+         DATA {
+         (0,0): (0), (1),
+         (1,0): (2, 3), (4, 5),
+         (2,0): (6, 7, 8), (9, 10, 11)
+         }
+      }
+      ATTRIBUTE "array2D" {
+         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+         DATA {
+         (0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
+         (1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
+         (2,0): [ 13, 14, 15 ], [ 16, 17, 18 ]
+         }
+      }
+      ATTRIBUTE "integer2D" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+         DATA {
+         (0,0): 1, 2,
+         (1,0): 3, 4,
+         (2,0): 5, 6
+         }
+      }
+      ATTRIBUTE "float2D" {
+         DATATYPE  H5T_IEEE_F32LE
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+         DATA {
+         (0,0): 1, 2,
+         (1,0): 3, 4,
+         (2,0): 5, 6
+         }
+      }
+      ATTRIBUTE "string3D" {
+         DATATYPE  H5T_STRING {
+               STRSIZE 2;
+               STRPAD H5T_STR_NULLTERM;
+               CSET H5T_CSET_ASCII;
+               CTYPE H5T_C_S1;
+            }
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+         DATA {
+         (0,0,0): "ab", "cd",
+         (0,1,0): "ef", "gh",
+         (0,2,0): "ij", "kl",
+         (1,0,0): "mn", "pq",
+         (1,1,0): "rs", "tu",
+         (1,2,0): "vw", "xz",
+         (2,0,0): "AB", "CD",
+         (2,1,0): "EF", "GH",
+         (2,2,0): "IJ", "KL",
+         (3,0,0): "MN", "PQ",
+         (3,1,0): "RS", "TU",
+         (3,2,0): "VW", "XZ"
+         }
+      }
+      ATTRIBUTE "bitfield3D" {
+         DATATYPE  H5T_STD_B8LE
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+         DATA {
+         (0,0,0): 0x01, 0x02,
+         (0,1,0): 0x03, 0x04,
+         (0,2,0): 0x05, 0x06,
+         (1,0,0): 0x07, 0x08,
+         (1,1,0): 0x09, 0x0a,
+         (1,2,0): 0x0b, 0x0c,
+         (2,0,0): 0x0d, 0x0e,
+         (2,1,0): 0x0f, 0x10,
+         (2,2,0): 0x11, 0x12,
+         (3,0,0): 0x13, 0x14,
+         (3,1,0): 0x15, 0x16,
+         (3,2,0): 0x17, 0x18
+         }
+      }
+      ATTRIBUTE "opaque3D" {
+         DATATYPE  
+            H5T_OPAQUE;
+            OPAQUE_TAG "1-byte opaque type";
+         
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+         DATA {
+         (0,0,0): 0x01, 0x02,
+         (0,1,0): 0x03, 0x04,
+         (0,2,0): 0x05, 0x06,
+         (1,0,0): 0x07, 0x08,
+         (1,1,0): 0x09, 0x0a,
+         (1,2,0): 0x0b, 0x0c,
+         (2,0,0): 0x0d, 0x0e,
+         (2,1,0): 0x0f, 0x10,
+         (2,2,0): 0x11, 0x12,
+         (3,0,0): 0x13, 0x14,
+         (3,1,0): 0x15, 0x16,
+         (3,2,0): 0x17, 0x18
+         }
+      }
       ATTRIBUTE "compound3D" {
          DATATYPE  H5T_COMPOUND {
             H5T_STD_I8LE "a";
@@ -695,28 +857,22 @@ GROUP "/" {
             }
          }
       }
-      ATTRIBUTE "enum" {
-         DATATYPE  H5T_ENUM {
-               H5T_STD_I32LE;
-               "RED"              0;
-               "GREEN"            1;
-            }
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): RED, RED
-         }
-      }
-      ATTRIBUTE "enum2D" {
-         DATATYPE  H5T_ENUM {
-               H5T_STD_I32LE;
-               "RED"              0;
-               "GREEN"            1;
-            }
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "reference3D" {
+         DATATYPE  H5T_REFERENCE
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
-         (0,0): RED, RED,
-         (1,0): RED, RED,
-         (2,0): RED, RED
+         (0,0,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (0,1,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (0,2,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (1,0,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (1,1,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (1,2,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (2,0,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (2,1,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (2,2,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (3,0,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (3,1,0): DATASET 976 /dset , DATASET 976 /dset ,
+         (3,2,0): DATASET 976 /dset , DATASET 976 /dset 
          }
       }
       ATTRIBUTE "enum3D" {
@@ -741,24 +897,44 @@ GROUP "/" {
          (3,2,0): RED, RED
          }
       }
-      ATTRIBUTE "float" {
-         DATATYPE  H5T_IEEE_F32LE
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      ATTRIBUTE "vlen3D" {
+         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
-         (0): 1, 2
+         (0,0,0): (0), (1),
+         (0,1,0): (2), (3),
+         (0,2,0): (4), (5),
+         (1,0,0): (6, 7), (8, 9),
+         (1,1,0): (10, 11), (12, 13),
+         (1,2,0): (14, 15), (16, 17),
+         (2,0,0): (18, 19, 20), (21, 22, 23),
+         (2,1,0): (24, 25, 26), (27, 28, 29),
+         (2,2,0): (30, 31, 32), (33, 34, 35),
+         (3,0,0): (36, 37, 38, 39), (40, 41, 42, 43),
+         (3,1,0): (44, 45, 46, 47), (48, 49, 50, 51),
+         (3,2,0): (52, 53, 54, 55), (56, 57, 58, 59)
          }
       }
-      ATTRIBUTE "float2D" {
-         DATATYPE  H5T_IEEE_F32LE
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "array3D" {
+         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
-         (0,0): 1, 2,
-         (1,0): 3, 4,
-         (2,0): 5, 6
+         (0,0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
+         (0,1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
+         (0,2,0): [ 13, 14, 15 ], [ 16, 17, 18 ],
+         (1,0,0): [ 19, 20, 21 ], [ 22, 23, 24 ],
+         (1,1,0): [ 25, 26, 27 ], [ 28, 29, 30 ],
+         (1,2,0): [ 31, 32, 33 ], [ 34, 35, 36 ],
+         (2,0,0): [ 37, 38, 39 ], [ 40, 41, 42 ],
+         (2,1,0): [ 43, 44, 45 ], [ 46, 47, 48 ],
+         (2,2,0): [ 49, 50, 51 ], [ 52, 53, 54 ],
+         (3,0,0): [ 55, 56, 57 ], [ 58, 59, 60 ],
+         (3,1,0): [ 61, 62, 63 ], [ 64, 65, 66 ],
+         (3,2,0): [ 67, 68, 69 ], [ 70, 71, 72 ]
          }
       }
-      ATTRIBUTE "float3D" {
-         DATATYPE  H5T_IEEE_F32LE
+      ATTRIBUTE "integer3D" {
+         DATATYPE  H5T_STD_I32LE
          DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
          (0,0,0): 1, 2,
@@ -775,24 +951,8 @@ GROUP "/" {
          (3,2,0): 23, 24
          }
       }
-      ATTRIBUTE "integer" {
-         DATATYPE  H5T_STD_I32LE
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): 1, 2
-         }
-      }
-      ATTRIBUTE "integer2D" {
-         DATATYPE  H5T_STD_I32LE
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-         DATA {
-         (0,0): 1, 2,
-         (1,0): 3, 4,
-         (2,0): 5, 6
-         }
-      }
-      ATTRIBUTE "integer3D" {
-         DATATYPE  H5T_STD_I32LE
+      ATTRIBUTE "float3D" {
+         DATATYPE  H5T_IEEE_F32LE
          DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
          (0,0,0): 1, 2,
@@ -809,6 +969,27 @@ GROUP "/" {
          (3,2,0): 23, 24
          }
       }
+   }
+   GROUP "g1" {
+      ATTRIBUTE "string" {
+         DATATYPE  H5T_STRING {
+               STRSIZE 2;
+               STRPAD H5T_STR_NULLTERM;
+               CSET H5T_CSET_ASCII;
+               CTYPE H5T_C_S1;
+            }
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): "ab", "de"
+         }
+      }
+      ATTRIBUTE "bitfield" {
+         DATATYPE  H5T_STD_B8LE
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+         DATA {
+         (0): 0x01, 0x02
+         }
+      }
       ATTRIBUTE "opaque" {
          DATATYPE  
             H5T_OPAQUE;
@@ -819,83 +1000,60 @@ GROUP "/" {
          (0): 0x01, 0x02
          }
       }
-      ATTRIBUTE "opaque2D" {
-         DATATYPE  
-            H5T_OPAQUE;
-            OPAQUE_TAG "1-byte opaque type";
-         
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "compound" {
+         DATATYPE  H5T_COMPOUND {
+            H5T_STD_I8LE "a";
+            H5T_IEEE_F64LE "b";
+         }
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0,0): 0x01, 0x02,
-         (1,0): 0x03, 0x04,
-         (2,0): 0x05, 0x06
+         (0): {
+               1,
+               2
+            },
+         (1): {
+               3,
+               4
+            }
          }
       }
-      ATTRIBUTE "opaque3D" {
-         DATATYPE  
-            H5T_OPAQUE;
-            OPAQUE_TAG "1-byte opaque type";
-         
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      ATTRIBUTE "enum" {
+         DATATYPE  H5T_ENUM {
+               H5T_STD_I32LE;
+               "RED"              0;
+               "GREEN"            1;
+            }
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0,0,0): 0x01, 0x02,
-         (0,1,0): 0x03, 0x04,
-         (0,2,0): 0x05, 0x06,
-         (1,0,0): 0x07, 0x08,
-         (1,1,0): 0x09, 0x0a,
-         (1,2,0): 0x0b, 0x0c,
-         (2,0,0): 0x0d, 0x0e,
-         (2,1,0): 0x0f, 0x10,
-         (2,2,0): 0x11, 0x12,
-         (3,0,0): 0x13, 0x14,
-         (3,1,0): 0x15, 0x16,
-         (3,2,0): 0x17, 0x18
+         (0): RED, RED
          }
       }
-      ATTRIBUTE "reference" {
-         DATATYPE  H5T_REFERENCE
+      ATTRIBUTE "vlen" {
+         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
          DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0): DATASET 976 /dset , DATASET 976 /dset 
+         (0): (1), (2, 3)
          }
       }
-      ATTRIBUTE "reference2D" {
-         DATATYPE  H5T_REFERENCE
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "array" {
+         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (1,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (2,0): DATASET 976 /dset , DATASET 976 /dset 
+         (0): [ 1, 2, 3 ], [ 4, 5, 6 ]
          }
       }
-      ATTRIBUTE "reference3D" {
-         DATATYPE  H5T_REFERENCE
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      ATTRIBUTE "integer" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0,0,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (0,1,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (0,2,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (1,0,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (1,1,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (1,2,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (2,0,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (2,1,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (2,2,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (3,0,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (3,1,0): DATASET 976 /dset , DATASET 976 /dset ,
-         (3,2,0): DATASET 976 /dset , DATASET 976 /dset 
+         (0): 1, 2
          }
       }
-      ATTRIBUTE "string" {
-         DATATYPE  H5T_STRING {
-               STRSIZE 2;
-               STRPAD H5T_STR_NULLTERM;
-               CSET H5T_CSET_ASCII;
-               CTYPE H5T_C_S1;
-            }
+      ATTRIBUTE "float" {
+         DATATYPE  H5T_IEEE_F32LE
          DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
          DATA {
-         (0): "ab", "de"
+         (0): 1, 2
          }
       }
       ATTRIBUTE "string2D" {
@@ -912,70 +1070,80 @@ GROUP "/" {
          (2,0): "ij", "kl"
          }
       }
-      ATTRIBUTE "string3D" {
-         DATATYPE  H5T_STRING {
-               STRSIZE 2;
-               STRPAD H5T_STR_NULLTERM;
-               CSET H5T_CSET_ASCII;
-               CTYPE H5T_C_S1;
-            }
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      ATTRIBUTE "bitfield2D" {
+         DATATYPE  H5T_STD_B8LE
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0,0,0): "ab", "cd",
-         (0,1,0): "ef", "gh",
-         (0,2,0): "ij", "kl",
-         (1,0,0): "mn", "pq",
-         (1,1,0): "rs", "tu",
-         (1,2,0): "vw", "xz",
-         (2,0,0): "AB", "CD",
-         (2,1,0): "EF", "GH",
-         (2,2,0): "IJ", "KL",
-         (3,0,0): "MN", "PQ",
-         (3,1,0): "RS", "TU",
-         (3,2,0): "VW", "XZ"
+         (0,0): 0x01, 0x02,
+         (1,0): 0x03, 0x04,
+         (2,0): 0x05, 0x06
          }
       }
-      ATTRIBUTE "vlen" {
-         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      ATTRIBUTE "opaque2D" {
+         DATATYPE  
+            H5T_OPAQUE;
+            OPAQUE_TAG "1-byte opaque type";
+         
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0): (1), (2, 3)
+         (0,0): 0x01, 0x02,
+         (1,0): 0x03, 0x04,
+         (2,0): 0x05, 0x06
          }
       }
-      ATTRIBUTE "vlen2D" {
-         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+      ATTRIBUTE "compound2D" {
+         DATATYPE  H5T_COMPOUND {
+            H5T_STD_I8LE "a";
+            H5T_IEEE_F64LE "b";
+         }
          DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0,0): (0), (1),
-         (1,0): (2, 3), (4, 5),
-         (2,0): (6, 7, 8), (9, 10, 11)
+         (0,0): {
+               1,
+               2
+            },
+         (0,1): {
+               3,
+               4
+            },
+         (1,0): {
+               5,
+               6
+            },
+         (1,1): {
+               7,
+               8
+            },
+         (2,0): {
+               9,
+               10
+            },
+         (2,1): {
+               11,
+               12
+            }
          }
       }
-      ATTRIBUTE "vlen3D" {
-         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      ATTRIBUTE "enum2D" {
+         DATATYPE  H5T_ENUM {
+               H5T_STD_I32LE;
+               "RED"              0;
+               "GREEN"            1;
+            }
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0,0,0): (0), (1),
-         (0,1,0): (2), (3),
-         (0,2,0): (4), (5),
-         (1,0,0): (6, 7), (8, 9),
-         (1,1,0): (10, 11), (12, 13),
-         (1,2,0): (14, 15), (16, 17),
-         (2,0,0): (18, 19, 20), (21, 22, 23),
-         (2,1,0): (24, 25, 26), (27, 28, 29),
-         (2,2,0): (30, 31, 32), (33, 34, 35),
-         (3,0,0): (36, 37, 38, 39), (40, 41, 42, 43),
-         (3,1,0): (44, 45, 46, 47), (48, 49, 50, 51),
-         (3,2,0): (52, 53, 54, 55), (56, 57, 58, 59)
+         (0,0): RED, RED,
+         (1,0): RED, RED,
+         (2,0): RED, RED
          }
       }
-   }
-   GROUP "g1" {
-      ATTRIBUTE "array" {
-         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      ATTRIBUTE "vlen2D" {
+         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0): [ 1, 2, 3 ], [ 4, 5, 6 ]
+         (0,0): (0), (1),
+         (1,0): (2, 3), (4, 5),
+         (2,0): (6, 7, 8), (9, 10, 11)
          }
       }
       ATTRIBUTE "array2D" {
@@ -987,38 +1155,45 @@ GROUP "/" {
          (2,0): [ 13, 14, 15 ], [ 16, 17, 18 ]
          }
       }
-      ATTRIBUTE "array3D" {
-         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
+      ATTRIBUTE "integer2D" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0,0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
-         (0,1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
-         (0,2,0): [ 13, 14, 15 ], [ 16, 17, 18 ],
-         (1,0,0): [ 19, 20, 21 ], [ 22, 23, 24 ],
-         (1,1,0): [ 25, 26, 27 ], [ 28, 29, 30 ],
-         (1,2,0): [ 31, 32, 33 ], [ 34, 35, 36 ],
-         (2,0,0): [ 37, 38, 39 ], [ 40, 41, 42 ],
-         (2,1,0): [ 43, 44, 45 ], [ 46, 47, 48 ],
-         (2,2,0): [ 49, 50, 51 ], [ 52, 53, 54 ],
-         (3,0,0): [ 55, 56, 57 ], [ 58, 59, 60 ],
-         (3,1,0): [ 61, 62, 63 ], [ 64, 65, 66 ],
-         (3,2,0): [ 67, 68, 69 ], [ 70, 71, 72 ]
+         (0,0): 1, 2,
+         (1,0): 3, 4,
+         (2,0): 5, 6
          }
       }
-      ATTRIBUTE "bitfield" {
-         DATATYPE  H5T_STD_B8LE
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      ATTRIBUTE "float2D" {
+         DATATYPE  H5T_IEEE_F32LE
+         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
          DATA {
-         (0): 0x01, 0x02
+         (0,0): 1, 2,
+         (1,0): 3, 4,
+         (2,0): 5, 6
          }
       }
-      ATTRIBUTE "bitfield2D" {
-         DATATYPE  H5T_STD_B8LE
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "string3D" {
+         DATATYPE  H5T_STRING {
+               STRSIZE 2;
+               STRPAD H5T_STR_NULLTERM;
+               CSET H5T_CSET_ASCII;
+               CTYPE H5T_C_S1;
+            }
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
-         (0,0): 0x01, 0x02,
-         (1,0): 0x03, 0x04,
-         (2,0): 0x05, 0x06
+         (0,0,0): "ab", "cd",
+         (0,1,0): "ef", "gh",
+         (0,2,0): "ij", "kl",
+         (1,0,0): "mn", "pq",
+         (1,1,0): "rs", "tu",
+         (1,2,0): "vw", "xz",
+         (2,0,0): "AB", "CD",
+         (2,1,0): "EF", "GH",
+         (2,2,0): "IJ", "KL",
+         (3,0,0): "MN", "PQ",
+         (3,1,0): "RS", "TU",
+         (3,2,0): "VW", "XZ"
          }
       }
       ATTRIBUTE "bitfield3D" {
@@ -1039,54 +1214,25 @@ GROUP "/" {
          (3,2,0): 0x17, 0x18
          }
       }
-      ATTRIBUTE "compound" {
-         DATATYPE  H5T_COMPOUND {
-            H5T_STD_I8LE "a";
-            H5T_IEEE_F64LE "b";
-         }
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): {
-               1,
-               2
-            },
-         (1): {
-               3,
-               4
-            }
-         }
-      }
-      ATTRIBUTE "compound2D" {
-         DATATYPE  H5T_COMPOUND {
-            H5T_STD_I8LE "a";
-            H5T_IEEE_F64LE "b";
-         }
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "opaque3D" {
+         DATATYPE  
+            H5T_OPAQUE;
+            OPAQUE_TAG "1-byte opaque type";
+         
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
-         (0,0): {
-               1,
-               2
-            },
-         (0,1): {
-               3,
-               4
-            },
-         (1,0): {
-               5,
-               6
-            },
-         (1,1): {
-               7,
-               8
-            },
-         (2,0): {
-               9,
-               10
-            },
-         (2,1): {
-               11,
-               12
-            }
+         (0,0,0): 0x01, 0x02,
+         (0,1,0): 0x03, 0x04,
+         (0,2,0): 0x05, 0x06,
+         (1,0,0): 0x07, 0x08,
+         (1,1,0): 0x09, 0x0a,
+         (1,2,0): 0x0b, 0x0c,
+         (2,0,0): 0x0d, 0x0e,
+         (2,1,0): 0x0f, 0x10,
+         (2,2,0): 0x11, 0x12,
+         (3,0,0): 0x13, 0x14,
+         (3,1,0): 0x15, 0x16,
+         (3,2,0): 0x17, 0x18
          }
       }
       ATTRIBUTE "compound3D" {
@@ -1194,30 +1340,6 @@ GROUP "/" {
             }
          }
       }
-      ATTRIBUTE "enum" {
-         DATATYPE  H5T_ENUM {
-               H5T_STD_I32LE;
-               "RED"              0;
-               "GREEN"            1;
-            }
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): RED, RED
-         }
-      }
-      ATTRIBUTE "enum2D" {
-         DATATYPE  H5T_ENUM {
-               H5T_STD_I32LE;
-               "RED"              0;
-               "GREEN"            1;
-            }
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-         DATA {
-         (0,0): RED, RED,
-         (1,0): RED, RED,
-         (2,0): RED, RED
-         }
-      }
       ATTRIBUTE "enum3D" {
          DATATYPE  H5T_ENUM {
                H5T_STD_I32LE;
@@ -1240,24 +1362,44 @@ GROUP "/" {
          (3,2,0): RED, RED
          }
       }
-      ATTRIBUTE "float" {
-         DATATYPE  H5T_IEEE_F32LE
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
+      ATTRIBUTE "vlen3D" {
+         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
-         (0): 1, 2
+         (0,0,0): (0), (1),
+         (0,1,0): (2), (3),
+         (0,2,0): (4), (5),
+         (1,0,0): (6, 7), (8, 9),
+         (1,1,0): (10, 11), (12, 13),
+         (1,2,0): (14, 15), (16, 17),
+         (2,0,0): (18, 19, 20), (21, 22, 23),
+         (2,1,0): (24, 25, 26), (27, 28, 29),
+         (2,2,0): (30, 31, 32), (33, 34, 35),
+         (3,0,0): (36, 37, 38, 39), (40, 41, 42, 43),
+         (3,1,0): (44, 45, 46, 47), (48, 49, 50, 51),
+         (3,2,0): (52, 53, 54, 55), (56, 57, 58, 59)
          }
       }
-      ATTRIBUTE "float2D" {
-         DATATYPE  H5T_IEEE_F32LE
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
+      ATTRIBUTE "array3D" {
+         DATATYPE  H5T_ARRAY { [3] H5T_STD_I32LE }
+         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
-         (0,0): 1, 2,
-         (1,0): 3, 4,
-         (2,0): 5, 6
+         (0,0,0): [ 1, 2, 3 ], [ 4, 5, 6 ],
+         (0,1,0): [ 7, 8, 9 ], [ 10, 11, 12 ],
+         (0,2,0): [ 13, 14, 15 ], [ 16, 17, 18 ],
+         (1,0,0): [ 19, 20, 21 ], [ 22, 23, 24 ],
+         (1,1,0): [ 25, 26, 27 ], [ 28, 29, 30 ],
+         (1,2,0): [ 31, 32, 33 ], [ 34, 35, 36 ],
+         (2,0,0): [ 37, 38, 39 ], [ 40, 41, 42 ],
+         (2,1,0): [ 43, 44, 45 ], [ 46, 47, 48 ],
+         (2,2,0): [ 49, 50, 51 ], [ 52, 53, 54 ],
+         (3,0,0): [ 55, 56, 57 ], [ 58, 59, 60 ],
+         (3,1,0): [ 61, 62, 63 ], [ 64, 65, 66 ],
+         (3,2,0): [ 67, 68, 69 ], [ 70, 71, 72 ]
          }
       }
-      ATTRIBUTE "float3D" {
-         DATATYPE  H5T_IEEE_F32LE
+      ATTRIBUTE "integer3D" {
+         DATATYPE  H5T_STD_I32LE
          DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
          (0,0,0): 1, 2,
@@ -1274,24 +1416,8 @@ GROUP "/" {
          (3,2,0): 23, 24
          }
       }
-      ATTRIBUTE "integer" {
-         DATATYPE  H5T_STD_I32LE
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): 1, 2
-         }
-      }
-      ATTRIBUTE "integer2D" {
-         DATATYPE  H5T_STD_I32LE
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-         DATA {
-         (0,0): 1, 2,
-         (1,0): 3, 4,
-         (2,0): 5, 6
-         }
-      }
-      ATTRIBUTE "integer3D" {
-         DATATYPE  H5T_STD_I32LE
+      ATTRIBUTE "float3D" {
+         DATATYPE  H5T_IEEE_F32LE
          DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
          DATA {
          (0,0,0): 1, 2,
@@ -1308,132 +1434,6 @@ GROUP "/" {
          (3,2,0): 23, 24
          }
       }
-      ATTRIBUTE "opaque" {
-         DATATYPE  
-            H5T_OPAQUE;
-            OPAQUE_TAG "1-byte opaque type";
-         
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): 0x01, 0x02
-         }
-      }
-      ATTRIBUTE "opaque2D" {
-         DATATYPE  
-            H5T_OPAQUE;
-            OPAQUE_TAG "1-byte opaque type";
-         
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-         DATA {
-         (0,0): 0x01, 0x02,
-         (1,0): 0x03, 0x04,
-         (2,0): 0x05, 0x06
-         }
-      }
-      ATTRIBUTE "opaque3D" {
-         DATATYPE  
-            H5T_OPAQUE;
-            OPAQUE_TAG "1-byte opaque type";
-         
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-         DATA {
-         (0,0,0): 0x01, 0x02,
-         (0,1,0): 0x03, 0x04,
-         (0,2,0): 0x05, 0x06,
-         (1,0,0): 0x07, 0x08,
-         (1,1,0): 0x09, 0x0a,
-         (1,2,0): 0x0b, 0x0c,
-         (2,0,0): 0x0d, 0x0e,
-         (2,1,0): 0x0f, 0x10,
-         (2,2,0): 0x11, 0x12,
-         (3,0,0): 0x13, 0x14,
-         (3,1,0): 0x15, 0x16,
-         (3,2,0): 0x17, 0x18
-         }
-      }
-      ATTRIBUTE "string" {
-         DATATYPE  H5T_STRING {
-               STRSIZE 2;
-               STRPAD H5T_STR_NULLTERM;
-               CSET H5T_CSET_ASCII;
-               CTYPE H5T_C_S1;
-            }
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): "ab", "de"
-         }
-      }
-      ATTRIBUTE "string2D" {
-         DATATYPE  H5T_STRING {
-               STRSIZE 2;
-               STRPAD H5T_STR_NULLTERM;
-               CSET H5T_CSET_ASCII;
-               CTYPE H5T_C_S1;
-            }
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-         DATA {
-         (0,0): "ab", "cd",
-         (1,0): "ef", "gh",
-         (2,0): "ij", "kl"
-         }
-      }
-      ATTRIBUTE "string3D" {
-         DATATYPE  H5T_STRING {
-               STRSIZE 2;
-               STRPAD H5T_STR_NULLTERM;
-               CSET H5T_CSET_ASCII;
-               CTYPE H5T_C_S1;
-            }
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-         DATA {
-         (0,0,0): "ab", "cd",
-         (0,1,0): "ef", "gh",
-         (0,2,0): "ij", "kl",
-         (1,0,0): "mn", "pq",
-         (1,1,0): "rs", "tu",
-         (1,2,0): "vw", "xz",
-         (2,0,0): "AB", "CD",
-         (2,1,0): "EF", "GH",
-         (2,2,0): "IJ", "KL",
-         (3,0,0): "MN", "PQ",
-         (3,1,0): "RS", "TU",
-         (3,2,0): "VW", "XZ"
-         }
-      }
-      ATTRIBUTE "vlen" {
-         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-         DATASPACE  SIMPLE { ( 2 ) / ( 2 ) }
-         DATA {
-         (0): (1), (2, 3)
-         }
-      }
-      ATTRIBUTE "vlen2D" {
-         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-         DATASPACE  SIMPLE { ( 3, 2 ) / ( 3, 2 ) }
-         DATA {
-         (0,0): (0), (1),
-         (1,0): (2, 3), (4, 5),
-         (2,0): (6, 7, 8), (9, 10, 11)
-         }
-      }
-      ATTRIBUTE "vlen3D" {
-         DATATYPE  H5T_VLEN { H5T_STD_I32LE}
-         DATASPACE  SIMPLE { ( 4, 3, 2 ) / ( 4, 3, 2 ) }
-         DATA {
-         (0,0,0): (0), (1),
-         (0,1,0): (2), (3),
-         (0,2,0): (4), (5),
-         (1,0,0): (6, 7), (8, 9),
-         (1,1,0): (10, 11), (12, 13),
-         (1,2,0): (14, 15), (16, 17),
-         (2,0,0): (18, 19, 20), (21, 22, 23),
-         (2,1,0): (24, 25, 26), (27, 28, 29),
-         (2,2,0): (30, 31, 32), (33, 34, 35),
-         (3,0,0): (36, 37, 38, 39), (40, 41, 42, 43),
-         (3,1,0): (44, 45, 46, 47), (48, 49, 50, 51),
-         (3,2,0): (52, 53, 54, 55), (56, 57, 58, 59)
-         }
-      }
    }
    GROUP "g2" {
       DATASET "array" {