+\r
+/* Create classld that points to a class */\r
+struct ir_classld_t* ir_classld_from_class\r
+( struct ir_class_t* class )\r
+{ struct ir_classld_t* classld;\r
+ if (class == NULL)\r
+ eprintf("Null class in classld\n");\r
+ classld = struct_alloc(ir_classld_t);\r
+ struct_clear(classld);\r
+ classld->root_class = class;\r
+ return classld;\r
+}\r
+\r
+struct ir_setld_t* ir_setld_from_ref\r
+( uint32_t ref )\r
+{ struct ir_setld_t* setld;\r
+ setld = struct_alloc(ir_setld_t);\r
+ struct_clear(setld);\r
+ setld->ref = ref;\r
+ return setld;\r
+}\r
+\r
+struct ir_setld_t* ir_setld_from_classld\r
+( struct ir_classld_t* classld,\r
+ const uint8_t* name\r
+)\r
+{ struct ir_setld_t* setld;\r
+ setld = struct_alloc(ir_setld_t);\r
+ struct_clear(setld);\r
+ setld->namelist = struct_alloc(ir_namelist_t);\r
+ struct_clear(setld->namelist);\r
+ setld->namelist_head = setld->namelist;\r
+ setld->namelist_head->name = name_alloc(name);\r
+ setld->classld = classld;\r
+ return setld; \r
+}\r
+\r
+struct ir_setld_t* ir_setld_addchild\r
+( struct ir_setld_t* setld,\r
+ const uint8_t* name\r
+)\r
+{ if (setld->namelist == NULL)\r
+ { setld->namelist = struct_alloc(ir_namelist_t);\r
+ struct_clear(setld->namelist);\r
+ setld->namelist_head = setld->namelist;\r
+ }\r
+ else\r
+ { setld->namelist_head->nextsib = struct_alloc(ir_namelist_t);\r
+ struct_clear(setld->namelist_head->nextsib);\r
+ setld->namelist_head = setld->namelist_head->nextsib;\r
+ }\r
+ setld->namelist_head->name = name_alloc(name);\r
+ return setld;\r
+}\r
+\r
+union ir_setdata_t* ir_link\r
+( enum ltype link_type,\r
+ struct ir_setld_t* setld,\r
+ const uint8_t* name\r
+)\r
+{ struct ir_link_t* link;\r
+ link = struct_alloc(ir_link_t);\r
+ struct_clear(link);\r
+ link->header.type = LDAT;\r
+ link->type = link_type;\r
+ link->setld = setld;\r
+ if (link_type != OLINK && name != NULL)\r
+ link->header.data_name = name_alloc(name);\r
+ return (union ir_setdata_t*) link;\r
+}\r
+\r
+/* Return a set's root framebox */\r
+union ir_setdata_t* ir_set_framebox\r
+( struct ir_set_t* set )\r
+{ return (union ir_setdata_t*) set->frameboxes; }\r
+\r
+/* Return a set's root audio data */\r
+union ir_setdata_t* ir_set_audio\r
+( struct ir_set_t* set )\r
+{ return (union ir_setdata_t*) set->audio; }\r
+\r
+/* Return a set's root link data */\r
+union ir_setdata_t* ir_set_link\r
+( struct ir_set_t* set )\r
+{ return (union ir_setdata_t*) set->links; }\r
+\r
+#define assert_link(linkdata) if (DEBUG) { \\r
+ if (linkdata->header.type != LDAT) \\r
+ eprintf("Data %s is not a link\n", linkdata->header.data_name); \\r
+ }\r
+\r
+/* Return the link type */\r
+enum ltype ir_linkdata_type\r
+( union ir_setdata_t* linkdata )\r
+{ assert_link(linkdata);\r
+ return linkdata->link.type;\r
+}\r
+\r
+/* Return the link type */\r
+uint32_t ir_linkdata_ref\r
+( union ir_setdata_t* linkdata )\r
+{ assert_link(linkdata);\r
+ return linkdata->link.setld->ref;\r
+}\r
+\r
+/* Return the current target set, resolving it first if not present */\r
+struct ir_set_t* ir_linkdata_set\r
+( union ir_setdata_t* linkdata )\r
+{ assert_link(linkdata);\r
+ if (linkdata->link.trg_set == NULL)\r
+ ir_linkdata_resolve_set(linkdata);\r
+ return linkdata->link.trg_set;\r
+}\r
+\r
+/* Resolve and assign the link's target set */\r
+static inline\r
+void ir_linkdata_resolve_set\r
+( union ir_setdata_t* linkdata )\r
+{ struct ir_class_t* class_iter;\r
+ struct ir_namelist_t* namelist_iter,* namelist_iter_last;\r
+ struct ir_setld_t* setld;\r
+ struct ir_classld_t* classld;\r
+ struct ir_set_t* set;\r
+ set = NULL;\r
+ class_iter = NULL;\r
+ assert_link(linkdata);\r
+ setld = linkdata->link.setld;\r
+ if (linkdata->link.setld == NULL)\r
+ eprintf("Link data is invalid\n");\r
+ classld = setld->classld;\r
+ if (classld != NULL)\r
+ { namelist_iter = classld->namelist;\r
+ if (classld->root_class == NULL)\r
+ eprintf("No root class for classld\n");\r
+ class_iter = classld->root_class->nextchild;\r
+ namelist_iter_last = NULL;\r
+ while (class_iter != NULL)\r
+ { if (classnames_identical(class_iter->name, namelist_iter->name))\r
+ { if (namelist_iter == classld->namelist_head)\r
+ break;\r
+ class_iter = class_iter->nextchild;\r
+ namelist_iter_last = namelist_iter;\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ else\r
+ class_iter = class_iter->nextsib;\r
+ }\r
+ if (class_iter == NULL)\r
+ { if (namelist_iter_last)\r
+ eprintf("No such subclass \"%s\" of class \"%s\"\n",\r
+ namelist_iter->name,\r
+ namelist_iter_last->name);\r
+ else\r
+ { wprintf("No such class \"%s\"\n", namelist_iter->name);\r
+ return;\r
+ }\r
+ }\r
+ set = class_iter->root_set;\r
+ }\r
+ else\r
+ set = ir_set_from_ref(setld->ref);\r
+ if (set == NULL)\r
+ eprintf("Initial set resolution failed\n");\r
+ namelist_iter = setld->namelist;\r
+ namelist_iter_last = NULL;\r
+ if (setld->namelist != NULL)\r
+ { while (set != NULL)\r
+ { if (bytes_identical(set->name, namelist_iter->name))\r
+ { if (namelist_iter == setld->namelist_head)\r
+ break;\r
+ set = set->nextchild;\r
+ namelist_iter_last = namelist_iter;\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ else\r
+ set = set->nextsib;\r
+ }\r
+ if (set == NULL)\r
+ { if (namelist_iter_last)\r
+ eprintf("No such subset \"%s\" of set \"%s\"\n",\r
+ namelist_iter->name,\r
+ namelist_iter_last->name);\r
+ else\r
+ eprintf("No such set \"%s\" in class \"%s\"\n",\r
+ namelist_iter->name,\r
+ class_iter->name);\r
+ }\r
+ }\r
+ linkdata->link.trg_set = set;\r
+}\r
+\r
+/* Assign a linkdatas trg_set */\r
+void ir_linkdata_assign_set\r
+( union ir_setdata_t* link, struct ir_set_t* set )\r
+{ assert_link(link);\r
+ link->link.trg_set = set;\r
+}\r
+\r
+/* Assign a linkdatas type */\r
+void ir_linkdata_assign_type\r
+( union ir_setdata_t* link, enum ltype type )\r
+{ assert_link(link);\r
+ link->link.type = type;\r
+}\r
+\r
+/* Get, or generate, the fully qualified name of the link's target set */\r
+uint8_t*\r
+ir_linkdata_dlink_name\r
+( union ir_setdata_t* link )\r
+{ struct ir_namelist_t* namelist_iter;\r
+ struct ir_setld_t* setld;\r
+ struct ir_classld_t* classld;\r
+ uint8_t* bytep;\r
+ size_t bytes;\r
+ char setpass;\r
+ uint8_t delimiter;\r
+ static const uint8_t dlink_prefix[] = { '/', '.', '.', '/' };\r
+# define dlink_prefix_len 4\r
+ assert_link(link);\r
+ if (link->link.dlink != NULL)\r
+ return link->link.dlink;\r
+ bytes = 0;\r
+ setld = link->link.setld;\r
+ if (setld == NULL)\r
+ eprintf("No setld in dlink\n");\r
+ classld = setld->classld;\r
+ if (classld == NULL)\r
+ eprintf("No classld in dlink\n");\r
+ if (classld->root_class != NULL)\r
+ eprintf("Cannot dlink local class \"%s\"\n", classld->root_class->name);\r
+ namelist_iter = classld->namelist;\r
+ setpass = 0;\r
+ count_bytes_in_namelist:\r
+ while (namelist_iter != NULL)\r
+ { bytep = namelist_iter->name;\r
+ while (*bytep++);\r
+ bytes += (bytep - namelist_iter->name);\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ if (setpass == 0)\r
+ { setpass = 1;\r
+ namelist_iter = setld->namelist;\r
+ goto count_bytes_in_namelist;\r
+ }\r
+ bytes += dlink_prefix_len;\r
+ link->link.dlink = stack_alloc(&namepages, bytes);\r
+ for (bytes = 0; bytes < dlink_prefix_len; bytes++)\r
+ link->link.dlink[bytes] = dlink_prefix[bytes];\r
+ namelist_iter = classld->namelist;\r
+ setpass = 0;\r
+ delimiter = APC_CLASS_DELIMITER;\r
+ copy_bytes_in_namelist:\r
+ while (namelist_iter != NULL)\r
+ { bytep = namelist_iter->name;\r
+ while (*bytep)\r
+ link->link.dlink[bytes++] = *bytep++;\r
+ link->link.dlink[bytes++] = delimiter;\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ if (setpass == 0)\r
+ { setpass = 1;\r
+ namelist_iter = setld->namelist;\r
+ delimiter = APC_SET_DELIMITER;\r
+ link->link.dlink[bytes - 1] = delimiter; //overwrite last delimiter\r
+ goto copy_bytes_in_namelist;\r
+ }\r
+ link->link.dlink[bytes] = '\0'; //tailing '\0' null termination\r
+ return link->link.dlink;\r
+}\r
+\r
+/* Get a setdata's next sibling */\r
+union ir_setdata_t* ir_setdata_nextsib\r
+( union ir_setdata_t* setdata )\r
+{ return setdata->header.nextsib; }\r
+\r
+/* Get a setdata's name */\r
+uint8_t* ir_setdata_name\r
+( union ir_setdata_t* setdata )\r
+{ return setdata->header.data_name; }\r
+\r
+/* Get a setdata's filename */\r
+uint8_t* ir_setdata_filename\r
+( union ir_setdata_t* setdata )\r
+{ return setdata->header.src_filename; }\r
+\r
+/* Get a setdata's file position */\r
+long ir_setdata_fpos\r
+( union ir_setdata_t* setdata )\r
+{ return setdata->header.filepos; }\r
+\r
+/* Set a setdata's file position */\r
+void ir_setdata_assign_fpos\r
+( union ir_setdata_t* setdata,\r
+ long newpos\r
+)\r
+{ setdata->header.filepos = newpos; }\r
+\r
+/* Assign a setdatas name */\r
+void ir_setdata_assign_name\r
+( union ir_setdata_t* setdata, uint8_t* name )\r
+{ setdata->header.data_name = name;}\r
+\r
+/* Return a framebox's specified framesheet */\r
+union ir_setdata_t* ir_framebox_framesheet\r
+( union ir_setdata_t* fbox,\r
+ apc_facing facing\r
+)\r
+{ if (fbox->header.type != FBDAT)\r
+ eprintf("Data %s is not a framebox\n", fbox->header.data_name);\r
+ return (union ir_setdata_t*) &fbox->framebox.framesheets[facing];\r
+}\r
+\r
+/* Return a framebox's specified mapsheet */\r
+union ir_setdata_t* ir_framebox_mapsheet\r
+( union ir_setdata_t* fbox,\r
+ apc_facing facing\r
+)\r
+{ if (fbox->header.type != FBDAT)\r
+ eprintf("Data %s is not a framebox\n", fbox->header.data_name);\r
+ return (union ir_setdata_t*) &fbox->framebox.mapsheets[facing];\r
+}\r
+\r
+/* Return a framedata's frame info */\r
+struct ir_frameinfo_t* ir_framedata_frameinfo\r
+( union ir_setdata_t* framedata )\r
+{ if (framedata->header.type != MSDAT && framedata->header.type != FSDAT)\r
+ eprintf("Data %s is not a framedata\n", framedata->header.data_name);\r
+ return &framedata->mapsheet.frameinfo;\r
+}\r
+\r
+\r
+/** Allocators **/\r
+static\r
+uint8_t* name_alloc\r
+( const uint8_t* name_src )\r
+{ const uint8_t* iter;\r
+ uint8_t* name;\r
+ int head_mem;\r
+ copy:\r
+ name = (uint8_t*)namepages.head->header.head;\r
+ iter = name_src;\r
+ for (head_mem = PL_HEADMEM(namepages); *iter && *iter != '_' && *iter != '.' && head_mem; head_mem--)\r
+ *(namepages.head->header.head)++ = *iter++;\r
+ if (head_mem < 1) //not enough room\r
+ { pagelist_alloc(namepages);\r
+ goto copy;\r
+ }\r
+ *(namepages.head->header.head)++ = '\0';\r
+ return name;\r
+}\r
+\r