X-Git-Url: https://www.kengrimes.com/gitweb/?p=henge%2Fapc.git;a=blobdiff_plain;f=src%2Fir.c;h=4ef2e5a9fa328be6fd935f8624dfc922a36239a3;hp=4cec2062cc232ee2afc95c54e6e3200e91f5c5e1;hb=32084db924eb07c8a5e44748aaf12883189b37d2;hpb=098067796d5d9e7f30451608c054e5dd30c85775

diff --git a/src/ir.c b/src/ir.c
index 4cec206..4ef2e5a 100644
--- a/src/ir.c
+++ b/src/ir.c
@@ -10,35 +10,29 @@
 #include <stdarg.h> //va_args
 #include <stdint.h> //uint64_t
 #include <string.h> //memset, str*
+#include <errno.h>
 /* Unicode */
 #include <unistd.h>   //u8_* functions
 #include <unitypes.h> //uint8_t as a char
 #include <unistr.h>   //u32_cpy
+#include <unistdio.h> //ulc_fprintf
 /* Local */
+#include "print.h"
 #include "apc.h"
 #include "ir.h"
+#include "pagenode.h"
+#undef  do_error
+#define do_error(...) exit(-1)
+#define XXH_PRIVATE_API
+#include "../xxHash/xxhash.h"
 /* Public */
 int      ir_init(void);
 void     ir_quit(void);
+void     ir_test(void);
 int      ir_linker(void);
 int      ir_condenser(void);
-/* Memory allocation structures */
-struct pagenode_t;
-struct pagenode_header_t {
-  struct pagenode_t* next;
-  char*              head;
-};
-struct pagenode_t {
-  struct pagenode_header_t header;
-  char                     root[];
-};
-struct pagelist_t {
-  struct pagenode_t* root, * head;
-  size_t             pagesize;
-};
-/* Set link data */
+/* Set data mem */
 enum dtype { FSDAT, MSDAT, ADAT, LDAT, FBDAT };
-enum ltype { OLINK, MLINK, VLINK, ALINK };
 struct ir_namelist_t;
 struct ir_namelist_t
 { struct ir_namelist_t* nextsib;
@@ -50,17 +44,15 @@ struct ir_classld_t
 };
 struct ir_setld_t
 { struct ir_classld_t*  classld;
-  long long             ref;
+  uint32_t              ref;
   struct ir_namelist_t* namelist, * namelist_head;
 };
-/* Set data mem */
 struct ir_setdata_header_t
 { enum dtype          type;
   uint8_t*            src_filename, * data_name;
   union ir_setdata_t* nextsib;
+  long                filepos;
 };
-struct ir_frameinfo_t
-{ int facing, w, h; };
 struct ir_framedata_t
 { struct ir_setdata_header_t header;
   struct ir_frameinfo_t      frameinfo;
@@ -89,120 +81,76 @@ struct ir_class_t
 { struct ir_class_t* nextchild, * nextsib;
   struct ir_set_t*   root_set;
   uint8_t*           name;
+  long               filepos;
 };
 struct ir_set_t
 { struct ir_set_t*      nextchild, * nextsib;
-  struct ir_class_t*    class;
-  long long             ref;
+  uint32_t              ref;
   uint8_t*              name;
   struct ir_framebox_t* frameboxes;
   struct ir_simplex_t*  audio;
   struct ir_link_t*     links;
+  long                  filepos;
 };
 /* Functions */
 static inline
-int                   init_pagelist(struct pagelist_t*,size_t);
+struct ir_framebox_t* ir_set_add_framebox(struct ir_set_t*,uint8_t*);
 static inline
-struct ir_framebox_t* ir_set_add_framebox(struct ir_set_t*, uint8_t*);
-static
-void                  ir_free_pagenodes(struct pagenode_t*);
+union ir_setdata_t*   ir_framedata (enum dtype,const uint8_t*,apc_facing,int,int);
 static inline
-int                   bytes_identical(uint8_t*,uint8_t*);
+int      bytes_identical(const uint8_t*,const uint8_t*);
+static inline
+int      classnames_identical(const uint8_t*,const uint8_t*);
 static
-void*                 stack_alloc(size_t);
+uint8_t* name_alloc(const uint8_t*);
 static
-uint8_t*              name_alloc(uint8_t*);
-static inline
-union ir_setdata_t*   ir_framedata (enum dtype,uint8_t*,apc_facing,int,int);
-/* Function-Like Macros */
-#define do_warn() do {				\
-  } while (0)
-#define wprint(str) do {			\
-    fprintf(stderr, str);			\
-    do_warn();					\
-  } while (0)
-#define wprintf(fmt,...) do {			\
-    fprintf(stderr, fmt, __VA_ARGS__);		\
-    do_warn();					\
-  } while (0)
-#define do_error() do {				\
-    exit(-1);					\
-  } while (0)
-#define eprint(str) do {			\
-    fprintf(stderr, str);			\
-    do_error();					\
-  } while (0)
-#define eprintf(fmt,...) do {			\
-    fprintf(stderr, fmt, __VA_ARGS__);		\
-    do_error();					\
-  } while (0)
-#define struct_alloc(_T) ((struct _T*) stack_alloc(sizeof(struct _T)))
-#define DATA_PAGESIZE   (sys_pagesize)
-#define NAME_PAGESIZE   (APC_NAME_MAX * 1024)
-#define PL_HEADERSIZE   (sizeof(struct pagenode_header_t))
-#define PL_HEADSIZE(_PL) (_PL.head->header.head - _PL.head->root)
-#define PL_HEADMEM(_PL)  (_PL.pagesize - PL_HEADERSIZE - PL_HEADSIZE(_PL))
-/* Memory */
+uint8_t* classname_alloc(const uint8_t*);
+#define  struct_clear(_S) (memset((_S), 0, sizeof(*(_S))))
+#define  REFHASH(ref) (XXH32(&ref, sizeof(uint32_t), 0xCEED) & 0xCFF)
+#define  struct_alloc(_T) ((struct _T*) stack_alloc(&datapages, sizeof(struct _T)))
 extern //apc.c
-long sys_pagesize;
+long     sys_pagesize;
 static
-struct pagelist_t datapages, namepages;
+struct pagelist_t datapages, namepages, refhashpages;
 static
 struct ir_class_t root_class = { .name = (uint8_t*)"." };
 
 /* Init */
 int ir_init
 ( void )
-{ if (init_pagelist(&datapages, (size_t)DATA_PAGESIZE))
-    eprint("Memory allocation error\n");
-  if (init_pagelist(&namepages, (size_t)NAME_PAGESIZE))
-    eprint("Memory allocation error\n");
-  return 0;
-}
+{ pagelist_init(datapages, (size_t)SYS_PAGESIZE);
+  pagelist_init(namepages, (size_t)NAME_PAGESIZE);
+  pagelist_init(refhashpages, (size_t)SYS_PAGESIZE);
 
-static inline
-int init_pagelist
-( struct pagelist_t* pl,
-  size_t size
-)
-{ pl->pagesize = size;
-  pl->root = (struct pagenode_t*) calloc(size,1);
-  if (pl->root == NULL)
-    return -1;
-  pl->root->header.head = pl->root->root;
-  pl->head = pl->root;
   return 0;
 }
 
-/* Quit/Cleanup
-   Recursively clean pagenode linked list
-*/
+/* Quit/Cleanup */
 void ir_quit
 ( void )
-{ ir_free_pagenodes(datapages.root);
-  ir_free_pagenodes(namepages.root);
-}
+{ pagenode_free(datapages.root);
+  pagenode_free(namepages.root);
+  pagenode_free(refhashpages.root);
 
-static
-void ir_free_pagenodes
-( struct pagenode_t* pagenode )
-{ if (pagenode->header.next != NULL)
-    ir_free_pagenodes(pagenode->header.next);
-  free(pagenode);
 }
 
-/* Link
-*/
+/* Link */
 int ir_linker
 ( void )
-{ return 0; }
+{ 
+  return 0;
+}
 
-/* Condense
-*/
+/* Condense */
 int ir_condenser
 ( void )
 { return 0; }
 
+/* Return the class's name string */
+uint8_t* ir_class_name
+( struct ir_class_t* class )
+{ return class->name; }
+
 /* Return a pointer to the root class */
 struct ir_class_t* ir_class_root
 ( void )
@@ -214,23 +162,31 @@ struct ir_class_t* ir_class_root
 */
 struct ir_class_t* ir_class_addchild
 ( struct ir_class_t* class,
-  uint8_t*           name
+  const uint8_t*     name
 )
 { struct ir_class_t* iter;
   if (class->nextchild == NULL)
-    return class->nextchild = struct_alloc(ir_class_t);
+    { class->nextchild = struct_alloc(ir_class_t);
+      struct_clear(class->nextchild);
+      class->nextchild->name = classname_alloc(name);
+      return class->nextchild;
+    }
   iter = class->nextchild;
+  if (iter->name == NULL)
+    eprintf("Null name pointer in class %p\n", iter);
+  if (name == NULL)
+    eprintf("Null child added to class %s\n", iter->name);
  check:
-  if (bytes_identical(iter->name, name))
+  if (classnames_identical(iter->name, name))
     return iter;
   if (iter->nextsib != NULL)
     { iter = iter->nextsib;
       goto check;
     }
-  iter = struct_alloc(ir_class_t);
-  iter->nextsib = class->nextchild;
-  iter->name = name_alloc(name);
-  return class->nextchild = iter;
+  iter->nextsib = struct_alloc(ir_class_t);
+  struct_clear(iter->nextsib);
+  iter->nextsib->name = classname_alloc(name);
+  return iter->nextsib;
 }
 
 /* Add a set to a class
@@ -239,12 +195,20 @@ struct ir_class_t* ir_class_addchild
 */
 struct ir_set_t* ir_class_addset
 ( struct ir_class_t* class,
-  uint8_t*           name
+  const uint8_t*     name
 )
 { struct ir_set_t* iter;
   if (class->root_set == NULL)
-    return class->root_set = struct_alloc(ir_set_t);
+    { class->root_set = struct_alloc(ir_set_t);
+      struct_clear(class->root_set);
+      class->root_set->name = name_alloc(name);
+      return class->root_set;
+    }
   iter = class->root_set;
+  if (iter->name == NULL)
+    eprintf("Null name pointer in class %p\n", iter);
+  if (name == NULL)
+    eprintf("Null set added to class %U\n", iter->name);
  check:
   if (bytes_identical(iter->name, name))
     return iter;
@@ -252,24 +216,51 @@ struct ir_set_t* ir_class_addset
     { iter = iter->nextsib;
       goto check;
     }
-  iter = struct_alloc(ir_set_t);
-  iter->nextsib = class->root_set;
-  iter->name = name_alloc(name);
-  return class->root_set = iter;
+  iter->nextsib = struct_alloc(ir_set_t);
+  struct_clear(iter->nextsib);
+  iter->nextsib->name = name_alloc(name);
+  return iter->nextsib;
 }
 
+/* Get the root set of the class */
+struct ir_set_t* ir_class_rootset
+( struct ir_class_t* class )
+{ return class->root_set; }
+
+struct ir_set_t* ir_set_from_ref
+( uint32_t ref )
+{ uint16_t hash;
+  struct ir_set_t** iters;
+  struct pagenode_t* iterp;
+  iterp = refhashpages.root;
+  hash = REFHASH(ref);
+  do
+    iters = ((struct ir_set_t**) iterp->root) + hash;
+  while (*iters != NULL && (*iters)->ref != ref && (iterp = iterp->header.next) != NULL);
+  return *iters;
+}
+
+
 /* Add a set to a set
    Attempts to create a new subset of the specified set, returning the
    child if it already exists
 */
 struct ir_set_t* ir_set_addchild
 ( struct ir_set_t* set,
-  uint8_t*         name
+  const uint8_t*   name
 )
 { struct ir_set_t* iter;
   if (set->nextchild == NULL)
-    return set->nextchild = struct_alloc(ir_set_t);
+    { set->nextchild = struct_alloc(ir_set_t);
+      struct_clear(set->nextchild);
+      set->nextchild->name = name_alloc(name);
+      return set->nextchild;
+    }
   iter = set->nextchild;
+  if (name == NULL)
+    eprintf("Null child added to set %s\n", iter->name);
+  if (iter->name == NULL)
+    eprintf("Null name pointer in set %p\n", iter);
  check:
   if (bytes_identical(iter->name, name))
     return iter;
@@ -277,15 +268,17 @@ struct ir_set_t* ir_set_addchild
     { iter = iter->nextsib;
       goto check;
     }
-  iter = struct_alloc(ir_set_t);
-  iter->nextsib = set->nextchild;
-  iter->name = name_alloc(name);
-  return set->nextchild = iter;
+  iter->nextsib = struct_alloc(ir_set_t);
+  struct_clear(iter->nextsib);
+  iter->nextsib->name = name_alloc(name);
+  return iter->nextsib;
 }
 
 /* Add a framebox to a set
    Attempts to create a new framebox of the specified set, returning
    the framebox if it already exists
+   Name is not allocated, but assigned, unlike other "XXX_add" functions where
+   name is duplicated into IR's internal array.
 */
 static inline
 struct ir_framebox_t* ir_set_add_framebox
@@ -294,7 +287,11 @@ struct ir_framebox_t* ir_set_add_framebox
 )
 { struct ir_framebox_t* iter;
   if (set->frameboxes == NULL)
-    return set->frameboxes = struct_alloc(ir_framebox_t);
+    { set->frameboxes = struct_alloc(ir_framebox_t);
+      struct_clear(set->frameboxes);
+      set->frameboxes->header.data_name = name;
+      return set->frameboxes;
+    }
   iter = set->frameboxes;
  check:
   if (bytes_identical(iter->header.data_name, name))
@@ -303,10 +300,10 @@ struct ir_framebox_t* ir_set_add_framebox
     { iter = (struct ir_framebox_t*) iter->header.nextsib;
       goto check;
     }
-  iter = struct_alloc(ir_framebox_t);
-  iter->header.nextsib = (union ir_setdata_t*) set->frameboxes;
-  iter->header.data_name = name_alloc(name);
-  return set->frameboxes = iter;
+  iter->header.nextsib = (union ir_setdata_t*) struct_alloc(ir_framebox_t);
+  struct_clear(iter->header.nextsib);
+  iter->header.nextsib->header.data_name = name;
+  return (struct ir_framebox_t*) (iter->header.nextsib);
 }
 
 /* Match two null-terminated bytestrings
@@ -314,8 +311,21 @@ struct ir_framebox_t* ir_set_add_framebox
 */
 static inline
 int bytes_identical
-( uint8_t* stra,
-  uint8_t* strb
+( const uint8_t* stra,
+  const uint8_t* strb
+)
+{ int ca, cb;
+  do {
+    ca = *stra++;
+    cb = *strb++;
+  } while (ca && ca != '_' && ca == cb);
+  return (ca == cb);
+}
+
+static inline
+int classnames_identical
+( const uint8_t* stra,
+  const uint8_t* strb
 )
 { int ca, cb;
   do {
@@ -325,9 +335,56 @@ int bytes_identical
   return (ca == cb);
 }
 
-/* Assign Setdata to Set
+/* Return the name of the set */
+uint8_t* ir_set_name
+( struct ir_set_t* set)
+{ return set->name; }
+
+/* Return the next sib of the class */
+struct ir_class_t* ir_class_nextsib
+( struct ir_class_t* class )
+{ return class->nextsib; }
+
+/* Return the next sib of the class */
+struct ir_class_t* ir_class_nextchild
+( struct ir_class_t* class )
+{ return class->nextchild; }
+
+/* Get the file position of the class */
+long ir_class_fpos
+( struct ir_class_t* class )
+{ return class->filepos; }
+
+/* Set the file position of the class */
+void ir_class_assign_fpos
+( struct ir_class_t* class,
+  long               newpos
+)
+{ class->filepos = newpos; }
+
+/* Get the next sibling of the provided set */
+struct ir_set_t* ir_set_nextsib
+( struct ir_set_t* set )
+{ return set->nextsib; }
+
+/* Get the next child of the provided set */
+struct ir_set_t* ir_set_nextchild
+( struct ir_set_t* set )
+{ return set->nextchild; }
+
+/* Get the file position of the class */
+long ir_set_fpos
+( struct ir_set_t* set )
+{ return set->filepos; }
 
- */
+/* Set the file position of the class */
+void ir_set_assign_fpos
+( struct ir_set_t* set,
+  long             newpos
+)
+{ set->filepos = newpos; }
+
+/* Assign Setdata to Set  */
 void ir_set_assign_data
 ( struct ir_set_t*      set,
   union  ir_setdata_t*  setdata
@@ -379,50 +436,79 @@ void ir_set_assign_data
 
 void ir_set_assign_ref
 ( struct ir_set_t* set,
-  long long        ref
+  uint32_t         ref
 )
-{ if (set->ref != 0)
-    wprintf("Ref override: 0x%lx -> 0x%lx for set %s\n",
-	    (long unsigned) set->ref, (long unsigned) ref, set->name);
+{ uint16_t hash, oldhash;
+  struct ir_set_t** iters;
+  struct pagenode_t* iterp;
+  uint32_t           oldref;
+  oldref = set->ref;
+  oldhash = 0;
+  hash = REFHASH(ref);
+  iterp = refhashpages.root;
+ check_depth:
+  iters = ((struct ir_set_t**) iterp->root) + hash;
+  if (*iters == NULL || *iters == set)
+    *iters = set;
+  else
+    { if (iterp->header.next == NULL)
+	pagelist_alloc(refhashpages);
+      iterp = iterp->header.next;
+      goto check_depth;
+    }
+  if (oldref != 0)
+    { wprintf("Ref override: 0x%x -> 0x%x for set %s\n", oldref, ref, set->name);
+      if (oldhash != 0)
+	*iters = NULL;
+      else
+	{ oldhash = hash;
+	  hash = REFHASH(oldref);
+	  goto check_depth;
+	}
+    }
   set->ref = ref;
-  //TODO: reflist_add(set);
 }
 
 void ir_data_assign_path
 ( union ir_setdata_t* setdata,
-  uint8_t*            path
+  const uint8_t*      path
 )
-{ if (setdata->header.src_filename != NULL)
+{ if (path == NULL)
+    eprintf("Null path in data %s\n", setdata->header.data_name);
+  if (setdata->header.src_filename != NULL)
     wprintf("Path override: %s -> %s for setdata %s\n",
 	    setdata->header.src_filename, path, setdata->header.data_name);
   setdata->header.src_filename = name_alloc(path);
 }
 
 union ir_setdata_t* ir_framesheet
-( uint8_t*   name,
-  apc_facing d,
-  int        width,
-  int        height
+( const uint8_t* name,
+  apc_facing     d,
+  int            width,
+  int            height
 )
 { return ir_framedata(FSDAT, name, d, width, height); }
 
 union ir_setdata_t* ir_mapsheet
-( uint8_t*   name,
-  apc_facing d,
-  int        width,
-  int        height
+( const uint8_t* name,
+  apc_facing     d,
+  int            width,
+  int            height
 )
 { return ir_framedata(MSDAT, name, d, width, height); }
 
 static inline
 union ir_setdata_t* ir_framedata
-( enum dtype type,
-  uint8_t*   name,
-  apc_facing d,
-  int        width,
-  int        height
+( enum dtype     type,
+  const uint8_t* name,
+  apc_facing     d,
+  int            width,
+  int            height
 )
 { struct ir_framedata_t* framedata = struct_alloc(ir_framedata_t);
+  struct_clear(framedata);
+  if (name == NULL)
+    eprintf("Null name in set allocation\n");
   framedata->header.type = type;
   framedata->header.data_name = name_alloc(name);
   framedata->frameinfo.facing = d;
@@ -432,8 +518,11 @@ union ir_setdata_t* ir_framedata
 }
 
 union ir_setdata_t* ir_audio
-( uint8_t* name )
+( const uint8_t* name )
 { struct ir_simplex_t* audio = struct_alloc(ir_simplex_t);
+  struct_clear(audio);
+  if (name == NULL)
+    eprintf("Null audio\n");
   audio->header.type = ADAT;
   audio->header.data_name = name_alloc(name);
   return (union ir_setdata_t*) audio;
@@ -444,26 +533,32 @@ union ir_setdata_t* ir_audio
 struct ir_classld_t* ir_classld_from_class
 ( struct ir_class_t* class )
 { struct ir_classld_t* classld;
+  if (class == NULL)
+    eprintf("Null class in classld\n");
   classld = struct_alloc(ir_classld_t);
+  struct_clear(classld);
   classld->root_class = class;
   return classld;
 }
 
 struct ir_setld_t* ir_setld_from_ref
-( long long ref )
+( uint32_t ref )
 { struct ir_setld_t* setld;
   setld = struct_alloc(ir_setld_t);
+  struct_clear(setld);
   setld->ref = ref;
   return setld;
 }
 
 struct ir_setld_t* ir_setld_from_classld
 ( struct ir_classld_t* classld,
-  uint8_t*             name
+  const uint8_t*       name
 )
 { struct ir_setld_t* setld;
   setld = struct_alloc(ir_setld_t);
+  struct_clear(setld);
   setld->namelist = struct_alloc(ir_namelist_t);
+  struct_clear(setld->namelist);
   setld->namelist_head = setld->namelist;
   setld->namelist_head->name = name_alloc(name);
   setld->classld = classld;
@@ -472,14 +567,16 @@ struct ir_setld_t* ir_setld_from_classld
 
 struct ir_setld_t* ir_setld_addchild
 ( struct ir_setld_t* setld,
-  uint8_t*           name
+  const uint8_t*     name
 )
 { if (setld->namelist == NULL)
     { setld->namelist = struct_alloc(ir_namelist_t);
+      struct_clear(setld->namelist);
       setld->namelist_head = setld->namelist;
     }
   else
     { setld->namelist_head->nextsib = struct_alloc(ir_namelist_t);
+      struct_clear(setld->namelist_head->nextsib);
       setld->namelist_head = setld->namelist_head->nextsib;
     }
   setld->namelist_head->name = name_alloc(name);
@@ -489,10 +586,11 @@ struct ir_setld_t* ir_setld_addchild
 union ir_setdata_t* ir_link
 ( enum ltype         link_type,
   struct ir_setld_t* setld,
-  uint8_t*           name
+  const uint8_t*     name
 )
 { struct ir_link_t* link;
   link = struct_alloc(ir_link_t);
+  struct_clear(link);
   link->header.type = LDAT;
   link->type = link_type; 
   link->classld = setld->classld;
@@ -502,41 +600,264 @@ union ir_setdata_t* ir_link
   return (union ir_setdata_t*) link;
 }
 
+/* Return a set's root framebox */
+union ir_setdata_t* ir_set_framebox
+( struct ir_set_t* set )
+{ return (union ir_setdata_t*) set->frameboxes; }
 
-static
-void* stack_alloc
-( size_t bytes )
-{ if (!bytes) //valid behavior to attain current head
-    return datapages.head->header.head;
-  if (PL_HEADMEM(datapages) < bytes) 
-    { datapages.head->header.next = (struct pagenode_t*) calloc(datapages.pagesize,1);
-      if (datapages.head->header.next == NULL)
-	eprint("Memory allocation error \n");
-      datapages.head = datapages.head->header.next; 
-      datapages.head->header.head = datapages.head->root;
+/* Return a set's root audio data */
+union ir_setdata_t* ir_set_audio
+( struct ir_set_t* set )
+{ return (union ir_setdata_t*) set->audio; }
+
+/* Return a set's root link data */
+union ir_setdata_t* ir_set_link
+( struct ir_set_t* set )
+{ return (union ir_setdata_t*) set->links; }
+
+/* Return the link type */
+enum ltype ir_linkdata_type
+( union ir_setdata_t* linkdata )
+{ if (linkdata->header.type != LDAT)
+    eprintf("Data %s is not a link\n", linkdata->header.data_name);
+  return linkdata->link.type;
+}
+
+/* Return the link type */
+uint32_t ir_linkdata_ref
+( union ir_setdata_t* linkdata )
+{ if (linkdata->header.type != LDAT)
+    eprintf("Data %s is not a link\n", linkdata->header.data_name);
+  return linkdata->link.setld->ref;
+}
+
+/* Resolve and return the link's target set
+   Fails on error, cannot return NULL
+*/
+struct ir_set_t* ir_linkdata_set
+( union ir_setdata_t* linkdata )
+{ struct ir_class_t* class_iter;
+  struct ir_namelist_t* namelist_iter,* namelist_iter_last;
+  struct ir_setld_t* setld;
+  struct ir_classld_t* classld;
+  struct ir_set_t* set;
+  set = NULL;
+  class_iter = NULL;
+  if (linkdata->header.type != LDAT)
+    eprintf("Data %s is not a link\n", linkdata->header.data_name);
+  setld = linkdata->link.setld;
+  if (linkdata->link.setld == NULL)
+    eprintf("Link data is invalid\n");
+  classld = linkdata->link.classld;
+  if (classld != NULL)
+    { namelist_iter = classld->namelist;
+      if (classld->root_class == NULL)
+	eprintf("No root class for classld\n");
+      class_iter = classld->root_class->nextchild;
+      namelist_iter_last = NULL;
+      while (class_iter != NULL)
+	{ if (classnames_identical(class_iter->name, namelist_iter->name))
+	    { if (namelist_iter == classld->namelist_head)
+		break;
+	      class_iter = class_iter->nextchild;
+	      namelist_iter_last = namelist_iter;
+	      namelist_iter = namelist_iter->nextsib;
+	    }
+	  else
+	    class_iter = class_iter->nextsib;
+	}
+      if (class_iter == NULL)
+	{ if (namelist_iter_last)
+	    eprintf("No such subclass \"%s\" of class \"%s\"\n",
+		    namelist_iter->name,
+		    namelist_iter_last->name);
+	  else
+	    eprintf("No such class \"%s\"\n", namelist_iter->name);
+	}
+      set = class_iter->root_set;
+    }
+  else
+    set = ir_set_from_ref(setld->ref);
+  if (set == NULL)
+    eprintf("Initial set resolution failed\n");
+  namelist_iter = setld->namelist;
+  namelist_iter_last = NULL;
+  if (setld->namelist != NULL)
+    { while (set != NULL)
+	{ if (bytes_identical(set->name, namelist_iter->name))
+	    { if (namelist_iter == setld->namelist_head)
+		break;
+	      set = set->nextchild;
+	      namelist_iter_last = namelist_iter;
+	      namelist_iter = namelist_iter->nextsib;
+	    }
+	  else
+	    set = set->nextsib;
+	}
+      if (set == NULL)
+	{ if (namelist_iter_last)
+	    eprintf("No such subset \"%s\" of set \"%s\"\n",
+		    namelist_iter->name,
+		    namelist_iter_last->name);
+	  else
+	    eprintf("No such set \"%s\" in class \"%s\"\n",
+		    namelist_iter->name,
+		    class_iter->name);
+	}
     }
-  datapages.head->header.head += bytes;
-  return (void*) datapages.head->header.head - bytes;
+  return set;
 }
 
+/* Get a setdata's next sibling */
+union ir_setdata_t* ir_setdata_nextsib
+( union ir_setdata_t* setdata )
+{ return setdata->header.nextsib; }
+
+/* Get a setdata's name */
+uint8_t* ir_setdata_name
+( union ir_setdata_t* setdata )
+{ return setdata->header.data_name; }
+
+/* Get a setdata's filename */
+uint8_t* ir_setdata_filename
+( union ir_setdata_t* setdata )
+{ return setdata->header.src_filename; }
+
+/* Get a setdata's file position */
+long ir_setdata_fpos
+( union ir_setdata_t* setdata )
+{ return setdata->header.filepos; }
+
+/* Set a setdata's file position */
+void ir_setdata_assign_fpos
+( union ir_setdata_t* setdata,
+  long                newpos
+)
+{ setdata->header.filepos = newpos; }
+
+/* Return a framebox's specified framesheet */
+union ir_setdata_t* ir_framebox_framesheet
+( union ir_setdata_t* fbox,
+  apc_facing          facing
+)
+{ if (fbox->header.type != FBDAT)
+    eprintf("Data %s is not a framebox\n", fbox->header.data_name);
+  return (union ir_setdata_t*) &fbox->framebox.framesheets[facing];
+}
+
+/* Return a framebox's specified mapsheet */
+union ir_setdata_t* ir_framebox_mapsheet
+( union ir_setdata_t* fbox,
+  apc_facing          facing
+)
+{ if (fbox->header.type != FBDAT)
+    eprintf("Data %s is not a framebox\n", fbox->header.data_name);
+  return (union ir_setdata_t*) &fbox->framebox.mapsheets[facing];
+}
+
+/* Return a framedata's frame info */
+struct ir_frameinfo_t* ir_framedata_frameinfo
+( union ir_setdata_t* framedata )
+{ if (framedata->header.type != MSDAT && framedata->header.type != FSDAT)
+    eprintf("Data %s is not a framedata\n", framedata->header.data_name);
+  return &framedata->mapsheet.frameinfo;
+}
+
+
+/** Allocators **/
 static
 uint8_t* name_alloc
-( uint8_t* name_src )
-{ uint8_t* iter, * name;
-  int      head_mem;
+( const uint8_t* name_src )
+{ const uint8_t* iter;
+  uint8_t*       name;
+  int            head_mem;
+ copy:
+  name = (uint8_t*)namepages.head->header.head;
+  iter = name_src;
+  for (head_mem = PL_HEADMEM(namepages); *iter && *iter != '_' && *iter != '.' && head_mem; head_mem--)
+    *(namepages.head->header.head)++ = *iter++;
+  if (head_mem < 1) //not enough room
+    { pagelist_alloc(namepages);
+      goto copy;
+    }
+  *(namepages.head->header.head)++ = '\0';
+  return name;
+}
+
+static
+uint8_t* classname_alloc
+( const uint8_t* name_src )
+{ const uint8_t* iter;
+  uint8_t*       name;
+  int            head_mem;
  copy:
   name = (uint8_t*)namepages.head->header.head;
   iter = name_src;
   for (head_mem = PL_HEADMEM(namepages); *iter && head_mem; head_mem--)
     *(namepages.head->header.head)++ = *iter++;
-  if (head_mem == 0) //not enough room
-    { namepages.head->header.next = (struct pagenode_t*) calloc(namepages.pagesize,1);
-      if (namepages.head->header.next == NULL)
-	eprint("Memory allocation error\n");
-      namepages.head = namepages.head->header.next;
-      namepages.head->header.head = namepages.head->root;
+  if (head_mem < 1) //not enough room
+    { pagelist_alloc(namepages);
       goto copy;
     }
   *(namepages.head->header.head)++ = '\0';
   return name;
 }
+
+static void crawl_class(struct ir_class_t*);
+static void crawl_set(struct ir_set_t*,int);
+
+extern
+int binout_init(ir_class);
+void     ir_test(void)
+{ uprintf("IR From Directory: %s\n",getcwd(NULL,255));
+  crawl_class(&root_class);
+  if (root_class.root_set != NULL)
+    crawl_set(root_class.root_set, 0);
+  uprintf("starting binaryout \n");
+  binout_init(&root_class);
+}
+
+
+static
+void crawl_class
+( struct ir_class_t* class )
+{ struct ir_class_t* iter;
+  for (iter = class->nextchild; iter != NULL; iter = iter->nextsib)
+    { wprintf("Crawling class %U/\n", iter->name);
+      if(chdir((char*)iter->name))
+	eprintf("CHDIR %U from %s\n",iter->name,getcwd(NULL,255));
+      crawl_class(iter);
+      if (iter->root_set != NULL)
+        crawl_set(iter->root_set, 0);
+      uprintf("%U\\\n",iter->name);
+      if (chdir(".."))
+ 	eprintf("CHDIR ..\n");
+      wprintf("Finished crawling class %U/\n", iter->name);
+    }
+}
+
+#define push_setp(setp) (*(struct ir_set_t**)stack_alloc(&datapages, sizeof(struct ir_set_t*)) = setp)
+#define pop_setp()      (*(struct ir_set_t**)pagelist_pop(&datapages, sizeof(struct ir_set_t*)))
+static
+void crawl_set
+( struct ir_set_t* set,
+  int depth
+)
+{ struct ir_set_t* iter;
+  int i;
+  i = depth * 12;
+  while (i--)
+    putchar('.');
+  i = depth;
+
+  for(iter = set; iter != NULL; iter = iter->nextchild)
+    { uprintf("[%10U]", iter->name);
+      push_setp(iter);
+      i++;
+    }
+
+  putchar('\n');
+  while (--i >= depth)
+    if (((iter = pop_setp())->nextsib) != NULL)
+      crawl_set(iter->nextsib,i);
+}