Change binding grammar to new approach.

9 files changed, 937 insertions, 775 deletions

diff --git a/src/Makefile b/src/Makefile
index e93cb99..3e5b8af 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,7 +1,8 @@
 CFLAGS := $(CFLAGS) -I$(BUILDDIR) -Isrc/ -g -DYYENABLE_NLS=0
 
 # Sources in this directory
-DIR_SOURCES := nsgenbind.c webidl-ast.c nsgenbind-ast.c jsapi-libdom.c jsapi-libdom-function.c jsapi-libdom-property.c jsapi-libdom-init.c jsapi-libdom-new.c jsapi-libdom-infmap.c jsapi-libdom-jsclass.c
+DIR_SOURCES := nsgenbind.c utils.c webidl-ast.c nsgenbind-ast.c
+# jsapi-libdom.c jsapi-libdom-function.c jsapi-libdom-property.c jsapi-libdom-init.c jsapi-libdom-new.c jsapi-libdom-infmap.c jsapi-libdom-jsclass.c
 
 SOURCES := $(SOURCES) $(BUILDDIR)/nsgenbind-parser.c $(BUILDDIR)/nsgenbind-lexer.c $(BUILDDIR)/webidl-parser.c $(BUILDDIR)/webidl-lexer.c
 
diff --git a/src/nsgenbind-ast.c b/src/nsgenbind-ast.c
index 2f630b7..49477cf 100644
--- a/src/nsgenbind-ast.c
+++ b/src/nsgenbind-ast.c
@@ -14,7 +14,9 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <string.h>
+#include <stdarg.h>
 
+#include "utils.h"
 #include "nsgenbind-ast.h"
 #include "options.h"
 
@@ -26,478 +28,521 @@ extern int nsgenbind_parse(struct genbind_node **genbind_ast);
 
 /* terminal nodes have a value only */
 struct genbind_node {
-	enum genbind_node_type type;
-	struct genbind_node *l;
-	union {
-		void *value;
-		struct genbind_node *node;
-		char *text;
-		int number; /* node data is an integer */
-	} r;
+        enum genbind_node_type type;
+        struct genbind_node *l;
+        union {
+                void *value;
+                struct genbind_node *node;
+                char *text;
+                int number; /* node data is an integer */
+        } r;
 };
 
 
 char *genbind_strapp(char *a, char *b)
 {
-	char *fullstr;
-	int fulllen;
-	fulllen = strlen(a) + strlen(b) + 1;
-	fullstr = malloc(fulllen);
-	snprintf(fullstr, fulllen, "%s%s", a, b);
-	free(a);
-	free(b);
-	return fullstr;
+        char *fullstr;
+        int fulllen;
+        fulllen = strlen(a) + strlen(b) + 1;
+        fullstr = malloc(fulllen);
+        snprintf(fullstr, fulllen, "%s%s", a, b);
+        free(a);
+        free(b);
+        return fullstr;
 }
 
 struct genbind_node *
 genbind_node_link(struct genbind_node *tgt, struct genbind_node *src)
 {
-	tgt->l = src;
-	return tgt;
+        tgt->l = src;
+        return tgt;
 }
 
 
 struct genbind_node *
 genbind_new_node(enum genbind_node_type type, struct genbind_node *l, void *r)
 {
-	struct genbind_node *nn;
-	nn = calloc(1, sizeof(struct genbind_node));
-	nn->type = type;
-	nn->l = l;
-	nn->r.value = r;
-	return nn;
+        struct genbind_node *nn;
+        nn = calloc(1, sizeof(struct genbind_node));
+        nn->type = type;
+        nn->l = l;
+        nn->r.value = r;
+        return nn;
 }
 
 
 /* exported interface defined in nsgenbind-ast.h */
 int
 genbind_node_foreach_type(struct genbind_node *node,
-			   enum genbind_node_type type,
-			   genbind_callback_t *cb,
-			   void *ctx)
+                           enum genbind_node_type type,
+                           genbind_callback_t *cb,
+                           void *ctx)
 {
-	int ret;
-
-	if (node == NULL) {
-		return -1;
-	}
-	if (node->l != NULL) {
-		ret = genbind_node_foreach_type(node->l, type, cb, ctx);
-		if (ret != 0) {
-			return ret;
-		}
-	}
-	if (node->type == type) {
-		return cb(node, ctx);
-	}
-
-	return 0;
+        int ret;
+
+        if (node == NULL) {
+                return -1;
+        }
+        if (node->l != NULL) {
+                ret = genbind_node_foreach_type(node->l, type, cb, ctx);
+                if (ret != 0) {
+                        return ret;
+                }
+        }
+        if (node->type == type) {
+                return cb(node, ctx);
+        }
+
+        return 0;
 }
 
 static int genbind_enumerate_node(struct genbind_node *node, void *ctx)
 {
-	node = node;
-	(*((int *)ctx))++;
-	return 0;
+        node = node;
+        (*((int *)ctx))++;
+        return 0;
 }
 
 /* exported interface defined in nsgenbind-ast.h */
 int
 genbind_node_enumerate_type(struct genbind_node *node,
-			    enum genbind_node_type type)
+                            enum genbind_node_type type)
 {
-	int count = 0;
-	genbind_node_foreach_type(node,
-				  type,
-				  genbind_enumerate_node,
-				  &count);
-	return count;
+        int count = 0;
+        genbind_node_foreach_type(node,
+                                  type,
+                                  genbind_enumerate_node,
+                                  &count);
+        return count;
 }
 
 /* exported interface defined in nsgenbind-ast.h */
 struct genbind_node *
 genbind_node_find(struct genbind_node *node,
-		  struct genbind_node *prev,
-		  genbind_callback_t *cb,
-		  void *ctx)
+                  struct genbind_node *prev,
+                  genbind_callback_t *cb,
+                  void *ctx)
 {
-	struct genbind_node *ret;
+        struct genbind_node *ret;
 
-	if ((node == NULL) || (node == prev)) {
-		return NULL;
-	}
+        if ((node == NULL) || (node == prev)) {
+                return NULL;
+        }
 
-	if (node->l != prev) {
-		ret = genbind_node_find(node->l, prev, cb, ctx);
-		if (ret != NULL) {
-			return ret;
-		}
-	}
+        if (node->l != prev) {
+                ret = genbind_node_find(node->l, prev, cb, ctx);
+                if (ret != NULL) {
+                        return ret;
+                }
+        }
 
-	if (cb(node, ctx) != 0) {
-		return node;
-	}
+        if (cb(node, ctx) != 0) {
+                return node;
+        }
 
-	return NULL;
+        return NULL;
 }
 
 /* exported interface documented in nsgenbind-ast.h */
 struct genbind_node *
 genbind_node_find_type(struct genbind_node *node,
-		       struct genbind_node *prev,
-		       enum genbind_node_type type)
+                       struct genbind_node *prev,
+                       enum genbind_node_type type)
 {
-	return genbind_node_find(node,
-				 prev,
-				 genbind_cmp_node_type,
-				 (void *)type);
+        return genbind_node_find(node,
+                                 prev,
+                                 genbind_cmp_node_type,
+                                 (void *)type);
 }
 
 /* exported interface documented in nsgenbind-ast.h */
 struct genbind_node *
 genbind_node_find_type_ident(struct genbind_node *node,
-			     struct genbind_node *prev,
-			     enum genbind_node_type type,
-			     const char *ident)
+                             struct genbind_node *prev,
+                             enum genbind_node_type type,
+                             const char *ident)
 {
-	struct genbind_node *found_node;
-	struct genbind_node *ident_node;
-
-	if (ident == NULL) {
-		return NULL;
-	}
-
-	found_node = genbind_node_find_type(node, prev, type);
-
-	while (found_node != NULL) {
-		/* look for an ident node  */
-		ident_node = genbind_node_find_type(
-			genbind_node_getnode(found_node),
-			NULL,
-			GENBIND_NODE_TYPE_IDENT);
-
-		while (ident_node != NULL) {
-			/* check for matching text */
-			if (strcmp(ident_node->r.text, ident) == 0) {
-				return found_node;
-			}
-
-			ident_node = genbind_node_find_type(
-				genbind_node_getnode(found_node),
-				ident_node,
-				GENBIND_NODE_TYPE_IDENT);
-		}
-
-
-		/* look for next matching node */
-		found_node = genbind_node_find_type(node, found_node, type);
-	}
-	return found_node;
+        struct genbind_node *found_node;
+        struct genbind_node *ident_node;
+
+        if (ident == NULL) {
+                return NULL;
+        }
+
+        found_node = genbind_node_find_type(node, prev, type);
+
+        while (found_node != NULL) {
+                /* look for an ident node  */
+                ident_node = genbind_node_find_type(
+                        genbind_node_getnode(found_node),
+                        NULL,
+                        GENBIND_NODE_TYPE_IDENT);
+
+                while (ident_node != NULL) {
+                        /* check for matching text */
+                        if (strcmp(ident_node->r.text, ident) == 0) {
+                                return found_node;
+                        }
+
+                        ident_node = genbind_node_find_type(
+                                genbind_node_getnode(found_node),
+                                ident_node,
+                                GENBIND_NODE_TYPE_IDENT);
+                }
+
+
+                /* look for next matching node */
+                found_node = genbind_node_find_type(node, found_node, type);
+        }
+        return found_node;
 }
 
 /* exported interface documented in nsgenbind-ast.h */
 struct genbind_node *
 genbind_node_find_type_type(struct genbind_node *node,
-			     struct genbind_node *prev,
-			     enum genbind_node_type type,
-			     const char *ident)
+                             struct genbind_node *prev,
+                             enum genbind_node_type type,
+                             const char *ident)
 {
-	struct genbind_node *found_node;
-	struct genbind_node *ident_node;
-
-	found_node = genbind_node_find_type(node, prev, type);
-
-
-	while (found_node != NULL) {
-		/* look for a type node  */
-		ident_node = genbind_node_find_type(genbind_node_getnode(found_node),
-					       NULL,
-					       GENBIND_NODE_TYPE_TYPE);
-		if (ident_node != NULL) {
-			if (strcmp(ident_node->r.text, ident) == 0)
-				break;
-		}
-
-		/* look for next matching node */
-		found_node = genbind_node_find_type(node, found_node, type);
-	}
-	return found_node;
+        struct genbind_node *found_node;
+        struct genbind_node *ident_node;
+
+        found_node = genbind_node_find_type(node, prev, type);
+
+
+        while (found_node != NULL) {
+                /* look for a type node  */
+                ident_node = genbind_node_find_type(genbind_node_getnode(found_node),
+                                               NULL,
+                                               GENBIND_NODE_TYPE_TYPE);
+                if (ident_node != NULL) {
+                        if (strcmp(ident_node->r.text, ident) == 0)
+                                break;
+                }
+
+                /* look for next matching node */
+                found_node = genbind_node_find_type(node, found_node, type);
+        }
+        return found_node;
 }
 
 int genbind_cmp_node_type(struct genbind_node *node, void *ctx)
 {
-	if (node->type == (enum genbind_node_type)ctx)
-		return 1;
-	return 0;
+        if (node->type == (enum genbind_node_type)ctx)
+                return 1;
+        return 0;
 }
 
 char *genbind_node_gettext(struct genbind_node *node)
 {
-	if (node != NULL) {
-		switch(node->type) {
-		case GENBIND_NODE_TYPE_WEBIDLFILE:
-		case GENBIND_NODE_TYPE_STRING:
-		case GENBIND_NODE_TYPE_PREAMBLE:
-		case GENBIND_NODE_TYPE_PROLOGUE:
-		case GENBIND_NODE_TYPE_EPILOGUE:
-		case GENBIND_NODE_TYPE_IDENT:
-		case GENBIND_NODE_TYPE_TYPE:
-		case GENBIND_NODE_TYPE_CBLOCK:
-			return node->r.text;
-
-		default:
-			break;
-		}
-	}
-	return NULL;
+        if (node != NULL) {
+                switch(node->type) {
+                case GENBIND_NODE_TYPE_WEBIDL:
+                case GENBIND_NODE_TYPE_STRING:
+                case GENBIND_NODE_TYPE_PREFACE:
+                case GENBIND_NODE_TYPE_PROLOGUE:
+                case GENBIND_NODE_TYPE_EPILOGUE:
+                case GENBIND_NODE_TYPE_POSTFACE:
+                case GENBIND_NODE_TYPE_IDENT:
+                case GENBIND_NODE_TYPE_TYPE:
+                case GENBIND_NODE_TYPE_CDATA:
+                        return node->r.text;
+
+                default:
+                        break;
+                }
+        }
+        return NULL;
 }
 
 struct genbind_node *genbind_node_getnode(struct genbind_node *node)
 {
-	if (node != NULL) {
-		switch(node->type) {
-		case GENBIND_NODE_TYPE_HDRCOMMENT:
-		case GENBIND_NODE_TYPE_BINDING:
-		case GENBIND_NODE_TYPE_BINDING_PRIVATE:
-		case GENBIND_NODE_TYPE_BINDING_INTERNAL:
-		case GENBIND_NODE_TYPE_BINDING_PROPERTY:
-		case GENBIND_NODE_TYPE_BINDING_INTERFACE:
-		case GENBIND_NODE_TYPE_BINDING_INTERFACE_FLAGS:
-		case GENBIND_NODE_TYPE_OPERATION:
-		case GENBIND_NODE_TYPE_API:
-		case GENBIND_NODE_TYPE_GETTER:
-		case GENBIND_NODE_TYPE_SETTER:
-			return node->r.node;
-
-		default:
-			break;
-		}
-	}
-	return NULL;
+        if (node != NULL) {
+                switch(node->type) {
+                case GENBIND_NODE_TYPE_BINDING:
+                case GENBIND_NODE_TYPE_CLASS:
+                case GENBIND_NODE_TYPE_PRIVATE:
+                case GENBIND_NODE_TYPE_INTERNAL:
+                case GENBIND_NODE_TYPE_PROPERTY:
+                case GENBIND_NODE_TYPE_FLAGS:
+                case GENBIND_NODE_TYPE_METHOD:
+                case GENBIND_NODE_TYPE_PARAMETER:
+                        return node->r.node;
+
+                default:
+                        break;
+                }
+        }
+        return NULL;
 
 }
 
 int *genbind_node_getint(struct genbind_node *node)
 {
-	if (node != NULL) {
-		switch(node->type) {
-		case GENBIND_NODE_TYPE_MODIFIER:
-			return &node->r.number;
-
-		default:
-			break;
-		}
-	}
-	return NULL;
+        if (node != NULL) {
+                switch(node->type) {
+                case GENBIND_NODE_TYPE_METHOD_TYPE:
+                case GENBIND_NODE_TYPE_MODIFIER:
+                        return &node->r.number;
+
+                default:
+                        break;
+                }
+        }
+        return NULL;
 }
 
 static const char *genbind_node_type_to_str(enum genbind_node_type type)
 {
-	switch(type) {
-	case GENBIND_NODE_TYPE_IDENT:
-		return "Ident";
+        switch(type) {
+        case GENBIND_NODE_TYPE_IDENT:
+                return "Ident";
 
-	case GENBIND_NODE_TYPE_ROOT:
-		return "Root";
+        case GENBIND_NODE_TYPE_ROOT:
+                return "Root";
 
-	case GENBIND_NODE_TYPE_WEBIDLFILE:
-		return "webidlfile";
+        case GENBIND_NODE_TYPE_WEBIDL:
+                return "webidl";
 
-	case GENBIND_NODE_TYPE_HDRCOMMENT:
-		return "HdrComment";
+        case GENBIND_NODE_TYPE_STRING:
+                return "String";
 
-	case GENBIND_NODE_TYPE_STRING:
-		return "String";
+        case GENBIND_NODE_TYPE_PREFACE:
+                return "Preface";
 
-	case GENBIND_NODE_TYPE_PREAMBLE:
-		return "Preamble";
+        case GENBIND_NODE_TYPE_POSTFACE:
+                return "Postface";
 
-	case GENBIND_NODE_TYPE_BINDING:
-		return "Binding";
+        case GENBIND_NODE_TYPE_PROLOGUE:
+                return "Prologue";
 
-	case GENBIND_NODE_TYPE_TYPE:
-		return "Type";
+        case GENBIND_NODE_TYPE_EPILOGUE:
+                return "Epilogue";
 
-	case GENBIND_NODE_TYPE_BINDING_PRIVATE:
-		return "Private";
+        case GENBIND_NODE_TYPE_BINDING:
+                return "Binding";
 
-	case GENBIND_NODE_TYPE_BINDING_INTERNAL:
-		return "Internal";
+        case GENBIND_NODE_TYPE_TYPE:
+                return "Type";
 
-	case GENBIND_NODE_TYPE_BINDING_INTERFACE:
-		return "Interface";
+        case GENBIND_NODE_TYPE_PRIVATE:
+                return "Private";
 
-	case GENBIND_NODE_TYPE_BINDING_INTERFACE_FLAGS:
-		return "Flags";
+        case GENBIND_NODE_TYPE_INTERNAL:
+                return "Internal";
 
-	case GENBIND_NODE_TYPE_BINDING_PROPERTY:
-		return "Property";
+        case GENBIND_NODE_TYPE_CLASS:
+                return "Class";
 
-	case GENBIND_NODE_TYPE_OPERATION:
-		return "Operation";
+        case GENBIND_NODE_TYPE_FLAGS:
+                return "Flags";
 
-	case GENBIND_NODE_TYPE_API:
-		return "API";
+        case GENBIND_NODE_TYPE_PROPERTY:
+                return "Property";
 
-	case GENBIND_NODE_TYPE_GETTER:
-		return "Getter";
+        case GENBIND_NODE_TYPE_METHOD:
+                return "Method";
 
-	case GENBIND_NODE_TYPE_SETTER:
-		return "Setter";
+        case GENBIND_NODE_TYPE_METHOD_TYPE:
+                return "Type";
 
-	case GENBIND_NODE_TYPE_CBLOCK:
-		return "CBlock";
+        case GENBIND_NODE_TYPE_PARAMETER:
+                return "Parameter";
 
-	default:
-		return "Unknown";
-	}
+        case GENBIND_NODE_TYPE_CDATA:
+                return "CBlock";
+
+        default:
+                return "Unknown";
+        }
 }
 
-int genbind_ast_dump(struct genbind_node *node, int indent)
+/** dump ast node to file at indent level */
+static int genbind_ast_dump(FILE *dfile, struct genbind_node *node, int indent)
 {
-	const char *SPACES="                                                                               ";
-	char *txt;
-
-	while (node != NULL) {
-		printf("%.*s%s", indent, SPACES,  genbind_node_type_to_str(node->type));
-
-		txt = genbind_node_gettext(node);
-		if (txt == NULL) {
-			printf("\n");
-			genbind_ast_dump(genbind_node_getnode(node), indent + 2);
-		} else {
-			printf(": \"%.*s\"\n", 75 - indent, txt);
-		}
-		node = node->l;
-	}
-	return 0;
+        const char *SPACES="                                                                               ";
+        char *txt;
+        int *val;
+
+        while (node != NULL) {
+                fprintf(dfile, "%.*s%s", indent, SPACES,
+                        genbind_node_type_to_str(node->type));
+
+                txt = genbind_node_gettext(node);
+                if (txt == NULL) {
+                        val = genbind_node_getint(node);
+                        if (val == NULL) {
+                                fprintf(dfile, "\n");
+                                genbind_ast_dump(dfile,
+                                                 genbind_node_getnode(node),
+                                                 indent + 2);
+                        } else {
+                                fprintf(dfile, ": %d\n", *val);
+                        }
+                } else {
+                        fprintf(dfile, ": \"%.*s\"\n", 75 - indent, txt);
+                }
+                node = node->l;
+        }
+        return 0;
 }
 
-FILE *genbindopen(const char *filename)
+
+/* exported interface documented in nsgenbind-ast.h */
+int genbind_dump_ast(struct genbind_node *node)
 {
-	FILE *genfile;
-	char *fullname;
-	int fulllen;
-	static char *prevfilepath = NULL;
-
-	/* try filename raw */
-	genfile = fopen(filename, "r");
-	if (genfile != NULL) {
-		if (options->verbose) {
-			printf("Opened Genbind file %s\n", filename);
-		}
-		if (prevfilepath == NULL) {
-			fullname = strrchr(filename, '/');
-			if (fullname == NULL) {
-				fulllen = strlen(filename);
-			} else {
-				fulllen = fullname - filename;
-			}
-			prevfilepath = strndup(filename,fulllen);
-		}
-		if (options->depfilehandle != NULL) {
-			fprintf(options->depfilehandle, " \\\n\t%s",
-				filename);
-		}
-		return genfile;
-	}
-
-	/* try based on previous filename */
-	if (prevfilepath != NULL) {
-		fulllen = strlen(prevfilepath) + strlen(filename) + 2;
-		fullname = malloc(fulllen);
-		snprintf(fullname, fulllen, "%s/%s", prevfilepath, filename);
-		if (options->debug) {
-			printf("Attempting to open Genbind file %s\n", fullname);
-		}
-		genfile = fopen(fullname, "r");
-		if (genfile != NULL) {
-			if (options->verbose) {
-				printf("Opened Genbind file %s\n", fullname);
-			}
-			if (options->depfilehandle != NULL) {
-				fprintf(options->depfilehandle, " \\\n\t%s",
-					fullname);
-			}
-			free(fullname);
-			return genfile;
-		}
-		free(fullname);
-	}
-
-	/* try on idl path */
-	if (options->idlpath != NULL) {
-		fulllen = strlen(options->idlpath) + strlen(filename) + 2;
-		fullname = malloc(fulllen);
-		snprintf(fullname, fulllen, "%s/%s", options->idlpath, filename);
-		genfile = fopen(fullname, "r");
-		if ((genfile != NULL) && options->verbose) {
-			printf("Opend Genbind file %s\n", fullname);
-			if (options->depfilehandle != NULL) {
-				fprintf(options->depfilehandle, " \\\n\t%s",
-					fullname);
-			}
-		}
-
-		free(fullname);
-	}
-
-	return genfile;
+    FILE *dumpf;
+
+    /* only dump AST to file if required */
+    if (!options->debug) {
+        return 0;
+    }
+
+    dumpf = genb_fopen("binding-ast", "w");
+    if (dumpf == NULL) {
+        return 2;
+    }
+
+    genbind_ast_dump(dumpf, node, 0);
+
+    fclose(dumpf);
+
+    return 0;
 }
 
-int genbind_parsefile(char *infilename, struct genbind_node **ast)
+FILE *genbindopen(const char *filename)
 {
-	FILE *infile;
-
-	/* open input file */
-	if ((infilename[0] == '-') &&
-	    (infilename[1] == 0)) {
-		if (options->verbose) {
-			printf("Using stdin for input\n");
-		}
-		infile = stdin;
-	} else {
-		infile = genbindopen(infilename);
-	}
-
-	if (!infile) {
-		fprintf(stderr, "Error opening %s: %s\n",
-			infilename,
-			strerror(errno));
-		return 3;
-	}
-
-	if (options->debug) {
-		nsgenbind_debug = 1;
-		nsgenbind__flex_debug = 1;
-	}
-
-	/* set flex to read from file */
-	nsgenbind_restart(infile);
-
-	/* process binding */
-	return nsgenbind_parse(ast);
+        FILE *genfile;
+        char *fullname;
+        int fulllen;
+        static char *prevfilepath = NULL;
+
+        /* try filename raw */
+        genfile = fopen(filename, "r");
+        if (genfile != NULL) {
+                if (options->verbose) {
+                        printf("Opened Genbind file %s\n", filename);
+                }
+                if (prevfilepath == NULL) {
+                        fullname = strrchr(filename, '/');
+                        if (fullname == NULL) {
+                                fulllen = strlen(filename);
+                        } else {
+                                fulllen = fullname - filename;
+                        }
+                        prevfilepath = strndup(filename,fulllen);
+                }
+#if 0
+                if (options->depfilehandle != NULL) {
+                        fprintf(options->depfilehandle, " \\\n\t%s",
+                                filename);
+                }
+#endif
+                return genfile;
+        }
+
+        /* try based on previous filename */
+        if (prevfilepath != NULL) {
+                fulllen = strlen(prevfilepath) + strlen(filename) + 2;
+                fullname = malloc(fulllen);
+                snprintf(fullname, fulllen, "%s/%s", prevfilepath, filename);
+                if (options->debug) {
+                        printf("Attempting to open Genbind file %s\n", fullname);
+                }
+                genfile = fopen(fullname, "r");
+                if (genfile != NULL) {
+                        if (options->verbose) {
+                                printf("Opened Genbind file %s\n", fullname);
+                        }
+#if 0
+                        if (options->depfilehandle != NULL) {
+                                fprintf(options->depfilehandle, " \\\n\t%s",
+                                        fullname);
+                        }
+#endif
+                        free(fullname);
+                        return genfile;
+                }
+                free(fullname);
+        }
+
+        /* try on idl path */
+        if (options->idlpath != NULL) {
+                fulllen = strlen(options->idlpath) + strlen(filename) + 2;
+                fullname = malloc(fulllen);
+                snprintf(fullname, fulllen, "%s/%s", options->idlpath, filename);
+                genfile = fopen(fullname, "r");
+                if ((genfile != NULL) && options->verbose) {
+                        printf("Opend Genbind file %s\n", fullname);
+#if 0
+                        if (options->depfilehandle != NULL) {
+                                fprintf(options->depfilehandle, " \\\n\t%s",
+                                        fullname);
+                        }
+#endif
+                }
+
+                free(fullname);
+        }
 
+        return genfile;
 }
 
-#ifdef NEED_STRNDUP
+/**
+ * standard IO handle for parse trace logging.
+ */
+static FILE *genbind_parsetracef;
 
-char *strndup(const char *s, size_t n)
+int genbind_parsefile(char *infilename, struct genbind_node **ast)
 {
-	size_t len;
-	char *s2;
-
-	for (len = 0; len != n && s[len]; len++)
-		continue;
+        FILE *infile;
+        int ret;
+
+        /* open input file */
+        infile = genbindopen(infilename);
+        if (!infile) {
+                fprintf(stderr, "Error opening %s: %s\n",
+                        infilename,
+                        strerror(errno));
+                return 3;
+        }
+
+        /* if debugging enabled enable parser tracing and send to file */
+        if (options->debug) {
+                nsgenbind_debug = 1;
+                nsgenbind__flex_debug = 1;
+                genbind_parsetracef = genb_fopen("binding-trace", "w");
+        } else {
+                genbind_parsetracef = NULL;
+        }
+
+        /* set flex to read from file */
+        nsgenbind_restart(infile);
+
+        /* process binding */
+        ret = nsgenbind_parse(ast);
+
+        /* close tracefile if open */
+        if (genbind_parsetracef != NULL) {
+                fclose(genbind_parsetracef);
+        }
+
+        return ret;
+}
 
-	s2 = malloc(len + 1);
-	if (!s2)
-		return 0;
+int genbind_fprintf(FILE *stream, const char *format, ...)
+{
+        va_list ap;
+        int ret;
 
-	memcpy(s2, s, len);
-	s2[len] = 0;
-	return s2;
-}
+        va_start(ap, format);
 
-#endif
+        if (genbind_parsetracef == NULL) {
+                ret = vfprintf(stream, format, ap);
+        } else {
+                ret = vfprintf(genbind_parsetracef, format, ap);
+        }
+        va_end(ap);
 
+        return ret;
+}
diff --git a/src/nsgenbind-ast.h b/src/nsgenbind-ast.h
index 4911f5a..f6800fb 100644
--- a/src/nsgenbind-ast.h
+++ b/src/nsgenbind-ast.h
@@ -10,36 +10,46 @@
 #define nsgenbind_nsgenbind_ast_h
 
 enum genbind_node_type {
-	GENBIND_NODE_TYPE_ROOT = 0,
-	GENBIND_NODE_TYPE_IDENT, /**< generic identifier string */
-	GENBIND_NODE_TYPE_TYPE, /**< generic type string */
-	GENBIND_NODE_TYPE_MODIFIER, /**< node modifier */
-
-	GENBIND_NODE_TYPE_CBLOCK,
-	GENBIND_NODE_TYPE_WEBIDLFILE,
-	GENBIND_NODE_TYPE_HDRCOMMENT,
-	GENBIND_NODE_TYPE_STRING,
-	GENBIND_NODE_TYPE_PREAMBLE,
-	GENBIND_NODE_TYPE_PROLOGUE,
-	GENBIND_NODE_TYPE_EPILOGUE,
-	GENBIND_NODE_TYPE_BINDING,
-	GENBIND_NODE_TYPE_BINDING_PRIVATE,
-	GENBIND_NODE_TYPE_BINDING_INTERNAL,
-	GENBIND_NODE_TYPE_BINDING_INTERFACE,
-	GENBIND_NODE_TYPE_BINDING_INTERFACE_FLAGS,
-	GENBIND_NODE_TYPE_BINDING_PROPERTY,
-	GENBIND_NODE_TYPE_API,
-	GENBIND_NODE_TYPE_OPERATION,
-	GENBIND_NODE_TYPE_GETTER,
-	GENBIND_NODE_TYPE_SETTER,
+        GENBIND_NODE_TYPE_ROOT = 0,
+        GENBIND_NODE_TYPE_IDENT, /**< generic identifier string */
+        GENBIND_NODE_TYPE_TYPE, /**< generic type string */
+        GENBIND_NODE_TYPE_MODIFIER, /**< node modifier */
+        GENBIND_NODE_TYPE_CDATA, /**< verbatim block of character data */
+        GENBIND_NODE_TYPE_STRING, /**< text string */
+
+        GENBIND_NODE_TYPE_BINDING,
+        GENBIND_NODE_TYPE_WEBIDL,
+        GENBIND_NODE_TYPE_PREFACE,
+        GENBIND_NODE_TYPE_PROLOGUE,
+        GENBIND_NODE_TYPE_EPILOGUE,
+        GENBIND_NODE_TYPE_POSTFACE,
+
+        GENBIND_NODE_TYPE_CLASS, /**< class definition */
+        GENBIND_NODE_TYPE_PRIVATE,
+        GENBIND_NODE_TYPE_INTERNAL,
+        GENBIND_NODE_TYPE_PROPERTY,
+        GENBIND_NODE_TYPE_FLAGS,
+
+        GENBIND_NODE_TYPE_METHOD, /**< binding method */
+        GENBIND_NODE_TYPE_METHOD_TYPE, /**< binding method type */
+        GENBIND_NODE_TYPE_PARAMETER, /**< method parameter */
 };
 
 /* modifier flags */
 enum genbind_type_modifier {
-	GENBIND_TYPE_NONE = 0,
-	GENBIND_TYPE_TYPE = 1, /**< identifies a type handler */
-	GENBIND_TYPE_UNSHARED = 2, /**< unshared item */
-	GENBIND_TYPE_TYPE_UNSHARED = 3, /**< identifies a unshared type handler */
+        GENBIND_TYPE_NONE = 0,
+        GENBIND_TYPE_TYPE = 1, /**< identifies a type handler */
+        GENBIND_TYPE_UNSHARED = 2, /**< unshared item */
+        GENBIND_TYPE_TYPE_UNSHARED = 3, /**< identifies a unshared type handler */
+};
+
+/* binding method types */
+enum genbind_method_type {
+        GENBIND_METHOD_TYPE_INIT = 0,
+        GENBIND_METHOD_TYPE_FINI = 1, /**<  */
+        GENBIND_METHOD_TYPE_METHOD = 2, /**<  */
+        GENBIND_METHOD_TYPE_GETTER = 3, /**<  */
+        GENBIND_METHOD_TYPE_SETTER = 4, /**<  */
 };
 
 struct genbind_node;
@@ -47,6 +57,8 @@ struct genbind_node;
 /** callback for search and iteration routines */
 typedef int (genbind_callback_t)(struct genbind_node *node, void *ctx);
 
+int genbind_fprintf(FILE *stream, const char *format, ...);
+
 int genbind_cmp_node_type(struct genbind_node *node, void *ctx);
 
 FILE *genbindopen(const char *filename);
@@ -58,9 +70,19 @@ char *genbind_strapp(char *a, char *b);
 struct genbind_node *genbind_new_node(enum genbind_node_type type, struct genbind_node *l, void *r);
 struct genbind_node *genbind_node_link(struct genbind_node *tgt, struct genbind_node *src);
 
-int genbind_ast_dump(struct genbind_node *ast, int indent);
+/**
+ * Dump the binding AST to file
+ *
+ * If the debug flag has been set this causes the binding AST to be written to
+ * a binding-ast output file
+ *
+ * \param node Node of the tree to start dumping from (usually tree root)
+ * \return 0 on sucess or non zero on faliure and error message printed.
+ */
+int genbind_dump_ast(struct genbind_node *node);
 
-/** Depth first left hand search using user provided comparison
+/**
+ *Depth first left hand search using user provided comparison
  *
  * @param node The node to start the search from
  * @param prev The node at which to stop the search, either NULL to
@@ -71,9 +93,9 @@ int genbind_ast_dump(struct genbind_node *ast, int indent);
  */
 struct genbind_node *
 genbind_node_find(struct genbind_node *node,
-		  struct genbind_node *prev,
-		  genbind_callback_t *cb,
-		  void *ctx);
+                  struct genbind_node *prev,
+                  genbind_callback_t *cb,
+                  void *ctx);
 
 /** Depth first left hand search returning nodes of the specified type
  *
@@ -86,8 +108,8 @@ genbind_node_find(struct genbind_node *node,
  */
 struct genbind_node *
 genbind_node_find_type(struct genbind_node *node,
-		       struct genbind_node *prev,
-		       enum genbind_node_type nodetype);
+                       struct genbind_node *prev,
+                       enum genbind_node_type nodetype);
 
 /** count how many nodes of a specified type.
  *
@@ -101,7 +123,7 @@ genbind_node_find_type(struct genbind_node *node,
  */
 int
 genbind_node_enumerate_type(struct genbind_node *node,
-			    enum genbind_node_type type);
+                            enum genbind_node_type type);
 
 /** Depth first left hand search returning nodes of the specified type
  *    and a ident child node with matching text
@@ -115,9 +137,9 @@ genbind_node_enumerate_type(struct genbind_node *node,
  */
 struct genbind_node *
 genbind_node_find_type_ident(struct genbind_node *node,
-			     struct genbind_node *prev,
-			     enum genbind_node_type nodetype,
-			     const char *ident);
+                             struct genbind_node *prev,
+                             enum genbind_node_type nodetype,
+                             const char *ident);
 
 /** Returning node of the specified type with a GENBIND_NODE_TYPE_TYPE
  * subnode with matching text.
@@ -137,9 +159,9 @@ genbind_node_find_type_ident(struct genbind_node *node,
  */
 struct genbind_node *
 genbind_node_find_type_type(struct genbind_node *node,
-			     struct genbind_node *prev,
-			     enum genbind_node_type nodetype,
-			     const char *type_text);
+                             struct genbind_node *prev,
+                             enum genbind_node_type nodetype,
+                             const char *type_text);
 
 /** Iterate all nodes of a certian type from a node with a callback.
  *
@@ -149,9 +171,9 @@ genbind_node_find_type_type(struct genbind_node *node,
  * @param node The node to start the search from.
  */
 int genbind_node_foreach_type(struct genbind_node *node,
-			      enum genbind_node_type type,
-			      genbind_callback_t *cb,
-			      void *ctx);
+                              enum genbind_node_type type,
+                              genbind_callback_t *cb,
+                              void *ctx);
 
 /** get a nodes node list content
  *
@@ -176,9 +198,4 @@ char *genbind_node_gettext(struct genbind_node *node);
  */
 int *genbind_node_getint(struct genbind_node *node);
 
-#ifdef _WIN32
-#define NEED_STRNDUP 1
-char *strndup(const char *s, size_t n);
-#endif
-
 #endif
diff --git a/src/nsgenbind-lexer.l b/src/nsgenbind-lexer.l
index 4b5e225..f7b6528 100644
--- a/src/nsgenbind-lexer.l
+++ b/src/nsgenbind-lexer.l
@@ -72,7 +72,9 @@ cblockopen              \%\{
 cblockclose             \%\}
 
 /* used for #include directive */
-poundsign           ^{whitespace}*#
+poundsign               ^{whitespace}*#
+
+dblcolon                \:\:
 
 %x                      cblock
 
@@ -88,44 +90,55 @@ poundsign           ^{whitespace}*#
                             yylloc->last_column = 0;
                         }
 
- /* terminals */
+ /* binding terminals */
 
-webidlfile              return TOK_IDLFILE;
+binding                 return TOK_BINDING;
 
-hdrcomment              return TOK_HDR_COMMENT;
+webidl                  return TOK_WEBIDL;
 
-preamble                return TOK_PREAMBLE;
+preface                 return TOK_PREFACE;
 
 prologue                return TOK_PROLOGUE;
 
 epilogue                return TOK_EPILOGUE;
 
-binding                 return TOK_BINDING;
+postface                return TOK_POSTFACE;
 
-interface               return TOK_INTERFACE;
 
-flags                   return TOK_FLAGS;
+ /* class member terminals */
 
-type                    return TOK_TYPE;
+class                   return TOK_CLASS;
 
 private                 return TOK_PRIVATE;
 
 internal                return TOK_INTERNAL;
 
+flags                   return TOK_FLAGS;
+
+type                    return TOK_TYPE;
+
 unshared                return TOK_UNSHARED;
 
 shared                  return TOK_SHARED;
 
 property                return TOK_PROPERTY;
 
-operation               return TOK_OPERATION;
+ /* implementation terminals */
+
+init                    return TOK_INIT;
 
-api                     return TOK_API;
+fini                    return TOK_FINI;
+
+method                  return TOK_METHOD;
 
 getter                  return TOK_GETTER;
 
 setter                  return TOK_SETTER;
 
+ /* other terminals */
+
+{dblcolon}              return TOK_DBLCOLON;
+
 {cblockopen}            BEGIN(cblock);
 
 {identifier}        {
@@ -140,7 +153,7 @@ setter                  return TOK_SETTER;
 
 {multicomment}          /* nothing */
 
-{poundsign}include  BEGIN(incl);
+{poundsign}include      BEGIN(incl);
 
 {other}                 return (int) yytext[0];
 
@@ -151,7 +164,7 @@ setter                  return TOK_SETTER;
 <cblock>\%              yylval->text = strdup(yytext); return TOK_CCODE_LITERAL;
 
 
-<incl>[ \t]*\"      /* eat the whitespace and open quotes */
+<incl>[ \t]*\"          /* eat the whitespace and open quotes */
 
 <incl>[^\t\n\"]+    { 
                         /* got the include file name */
diff --git a/src/nsgenbind-parser.y b/src/nsgenbind-parser.y
index b37ab9d..c8e5154 100644
--- a/src/nsgenbind-parser.y
+++ b/src/nsgenbind-parser.y
@@ -10,6 +10,12 @@
 #include <stdio.h>
 #include <string.h>
 
+#define YYFPRINTF genbind_fprintf
+#define YY_LOCATION_PRINT(File, Loc)                            \
+  genbind_fprintf(File, "%d.%d-%d.%d",                          \
+                  (Loc).first_line, (Loc).first_column,         \
+                  (Loc).last_line,  (Loc).last_column)
+
 #include "nsgenbind-parser.h"
 #include "nsgenbind-lexer.h"
 #include "webidl-ast.h"
@@ -17,7 +23,9 @@
 
 char *errtxt;
 
- static void nsgenbind_error(YYLTYPE *locp, struct genbind_node **genbind_ast, const char *str)
+static void nsgenbind_error(YYLTYPE *locp,
+                            struct genbind_node **genbind_ast,
+                            const char *str)
 {
     locp = locp;
     genbind_ast = genbind_ast;
@@ -37,31 +45,36 @@ char *errtxt;
 
 %union
 {
-    char* text;
+    char *text;
     struct genbind_node *node;
     long value;
 }
 
-%token TOK_IDLFILE
-%token TOK_HDR_COMMENT
-%token TOK_PREAMBLE
-%token TOK_PROLOGUE;
-%token TOK_EPILOGUE;
-
-%token TOK_API
 %token TOK_BINDING
-%token TOK_OPERATION
-%token TOK_GETTER
-%token TOK_SETTER
-%token TOK_INTERFACE
-%token TOK_FLAGS
-%token TOK_TYPE
+%token TOK_WEBIDL
+%token TOK_PREFACE
+%token TOK_PROLOGUE
+%token TOK_EPILOGUE
+%token TOK_POSTFACE
+
+%token TOK_CLASS
 %token TOK_PRIVATE
 %token TOK_INTERNAL
+%token TOK_FLAGS
+%token TOK_TYPE
 %token TOK_UNSHARED
 %token TOK_SHARED
 %token TOK_PROPERTY
 
+ /* method types */
+%token TOK_INIT
+%token TOK_FINI
+%token TOK_METHOD
+%token TOK_GETTER
+%token TOK_SETTER
+
+%token TOK_DBLCOLON
+
 %token <text> TOK_IDENTIFIER
 %token <text> TOK_STRING_LITERAL
 %token <text> TOK_CCODE_LITERAL
@@ -73,28 +86,30 @@ char *errtxt;
 
 %type <node> Statement
 %type <node> Statements
-%type <node> IdlFile
-%type <node> Preamble 
-%type <node> Prologue
-%type <node> Epilogue
-%type <node> HdrComment
-%type <node> Strings
 %type <node> Binding
 %type <node> BindingArgs
 %type <node> BindingArg
+%type <node> Class
+%type <node> ClassArgs
+%type <node> ClassArg
+%type <node> ClassFlag
+%type <node> ClassFlags
+
+%type <node> Method
+%type <node> MethodDeclarator
+%type <value> MethodType
+
+%type <node> WebIDL
+%type <node> Preface
+%type <node> Prologue
+%type <node> Epilogue
+%type <node> Postface
 %type <node> Private
 %type <node> Internal
-%type <node> Interface
-%type <node> InterfaceArgs
-%type <node> InterfaceArg
-%type <node> InterfaceFlags
 %type <node> Property
-%type <node> Operation
-%type <node> Api
-%type <node> Getter
-%type <node> Setter
-
 
+%type <node> ParameterList
+%type <node> TypeIdent
 
 %%
 
@@ -126,68 +141,77 @@ Statements
 
 Statement
         : 
-        IdlFile
-        | 
-        HdrComment
-        |
-        Preamble
-        |
-        Prologue
-        |
-        Epilogue
-        |
         Binding
         |
-        Operation
-        |
-        Api
+        Class
         |
-        Getter
-        |
-        Setter
+        Method
         ;
 
- /* [3] load a web IDL file */
-IdlFile
-        : 
-        TOK_IDLFILE TOK_STRING_LITERAL ';'
+Binding
+        :
+        TOK_BINDING TOK_IDENTIFIER '{' BindingArgs '}'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_WEBIDLFILE, NULL, $2);
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING, 
+                                NULL, 
+                                genbind_new_node(GENBIND_NODE_TYPE_TYPE, $4, $2));
         }
         ;
 
-HdrComment
-        : 
-        TOK_HDR_COMMENT Strings ';'
+BindingArgs
+        :
+        BindingArg
+        |
+        BindingArgs BindingArg
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_HDRCOMMENT, NULL, $2);
+          $$ = genbind_node_link($2, $1);
         }
         ;
 
-Strings
+BindingArg
         : 
-        TOK_STRING_LITERAL
+        WebIDL
+        |
+        Preface
+        |
+        Prologue
+        |
+        Epilogue
+        |
+        Postface
+        ;
+
+ /* [3] a web IDL file specifier */
+WebIDL
+        :
+        TOK_WEBIDL TOK_STRING_LITERAL ';'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_STRING, NULL, $1);
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_WEBIDL, NULL, $2);
         }
-        | 
-        Strings TOK_STRING_LITERAL 
+        ;
+
+
+ /* type and identifier of a variable */
+TypeIdent
+        :
+        TOK_STRING_LITERAL TOK_IDENTIFIER
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_STRING, $1, $2);
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                 genbind_new_node(GENBIND_NODE_TYPE_TYPE, NULL, $1), $2);
         }
         ;
 
-Preamble
+Preface
         :
-        TOK_PREAMBLE CBlock
+        TOK_PREFACE CBlock ';'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_PREAMBLE, NULL, $2);
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_PREFACE, NULL, $2);
         }
         ;
 
 Prologue
         :
-        TOK_PROLOGUE CBlock
+        TOK_PROLOGUE CBlock ';'
         {
           $$ = genbind_new_node(GENBIND_NODE_TYPE_PROLOGUE, NULL, $2);
         }
@@ -195,173 +219,196 @@ Prologue
 
 Epilogue
         :
-        TOK_EPILOGUE CBlock
+        TOK_EPILOGUE CBlock ';'
         {
           $$ = genbind_new_node(GENBIND_NODE_TYPE_EPILOGUE, NULL, $2);
         }
         ;
 
+Postface
+        :
+        TOK_POSTFACE CBlock ';'
+        {
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_POSTFACE, NULL, $2);
+        }
+        ;
+
 CBlock
-        : 
+        :
         TOK_CCODE_LITERAL
-        | 
-        CBlock TOK_CCODE_LITERAL 
+        |
+        CBlock TOK_CCODE_LITERAL
         {
           $$ = genbind_strapp($1, $2);
         }
         ;
 
-Operation
+MethodType
         :
-        TOK_OPERATION TOK_IDENTIFIER CBlock
+        TOK_INIT
         {
-            $$ = genbind_new_node(GENBIND_NODE_TYPE_OPERATION, 
-                     NULL, 
-                     genbind_new_node(GENBIND_NODE_TYPE_IDENT, 
-                         genbind_new_node(GENBIND_NODE_TYPE_CBLOCK, 
-                                          NULL, 
-                                          $3), 
-                         $2));
+                $$ = GENBIND_METHOD_TYPE_INIT;
         }
+        |
+        TOK_FINI
+        {
+                $$ = GENBIND_METHOD_TYPE_FINI;
+        }
+        |
+        TOK_METHOD
+        {
+                $$ = GENBIND_METHOD_TYPE_METHOD;
+        }
+        |
+        TOK_GETTER
+        {
+                $$ = GENBIND_METHOD_TYPE_GETTER;
+        }
+        |
+        TOK_SETTER
+        {
+                $$ = GENBIND_METHOD_TYPE_SETTER;
+        }
+        ;
 
-Api
+ParameterList
         :
-        TOK_API TOK_IDENTIFIER CBlock
+        TypeIdent
+        {
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_PARAMETER, NULL, $1);
+        }
+        |
+        ParameterList ',' TypeIdent
         {
-            $$ = genbind_new_node(GENBIND_NODE_TYPE_API, 
-                     NULL, 
-                     genbind_new_node(GENBIND_NODE_TYPE_IDENT, 
-                         genbind_new_node(GENBIND_NODE_TYPE_CBLOCK, 
-                                          NULL, 
-                                          $3), 
-                         $2));
+                $$ = genbind_node_link($3, $1);
         }
+        ;
 
-Getter
+MethodDeclarator
         :
-        TOK_GETTER TOK_IDENTIFIER CBlock
+        TOK_IDENTIFIER TOK_DBLCOLON TOK_IDENTIFIER '(' ParameterList ')'
         {
-            $$ = genbind_new_node(GENBIND_NODE_TYPE_GETTER, 
-                     NULL, 
-                     genbind_new_node(GENBIND_NODE_TYPE_IDENT, 
-                         genbind_new_node(GENBIND_NODE_TYPE_CBLOCK, 
-                                          NULL, 
-                                          $3), 
-                         $2));
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_CLASS,
+                                      genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                                                       $5,
+                                                       $3),
+                                      genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                                                       NULL,
+                                                       $1));
         }
+        |
+        TOK_IDENTIFIER TOK_DBLCOLON TOK_IDENTIFIER '(' ')'
+        {
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_CLASS,
+                                      genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                                                       NULL,
+                                                       $3),
+                                      genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                                                       NULL,
+                                                       $1));
+        }
+        |
+        TOK_IDENTIFIER '(' ParameterList ')'
+        {
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_CLASS,
+                                      $3,
+                                      genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                                                       NULL,
+                                                       $1));
+        }
+        |
+        TOK_IDENTIFIER '(' ')'
+        {
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_CLASS, NULL,
+                                      genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                                                       NULL,
+                                                       $1));
+        }
+        ;
 
-Setter
+Method
         :
-        TOK_SETTER TOK_IDENTIFIER CBlock
+        MethodType MethodDeclarator CBlock
         {
-            $$ = genbind_new_node(GENBIND_NODE_TYPE_SETTER, 
-                     NULL, 
-                     genbind_new_node(GENBIND_NODE_TYPE_IDENT, 
-                         genbind_new_node(GENBIND_NODE_TYPE_CBLOCK, 
-                                          NULL, 
-                                          $3), 
-                         $2));
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_METHOD, NULL,
+                        genbind_new_node(GENBIND_NODE_TYPE_METHOD_TYPE,
+                                genbind_new_node(GENBIND_NODE_TYPE_CDATA,
+                                                 $2, $3),
+                                         (void *)$1));
         }
 
-Binding
+
+Class
         :
-        TOK_BINDING TOK_IDENTIFIER '{' BindingArgs '}'
+        TOK_CLASS TOK_IDENTIFIER '{' ClassArgs '}'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING, 
-                                NULL, 
-                                genbind_new_node(GENBIND_NODE_TYPE_TYPE, $4, $2));
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_CLASS, NULL,
+                        genbind_new_node(GENBIND_NODE_TYPE_IDENT, $4, $2));
         }
         ;
 
-BindingArgs
+ClassArgs
         :
-        BindingArg
+        ClassArg
         |
-        BindingArgs BindingArg
+        ClassArgs ClassArg
         {
-          $$ = genbind_node_link($2, $1);
+                $$ = genbind_node_link($2, $1);
         }
         ;
 
-BindingArg
-        : 
+ClassArg
+        :
         Private
         | 
         Internal
         | 
-        Interface
-        |
         Property
+        |
+        ClassFlag
+        |
+        Preface
+        |
+        Prologue
+        |
+        Epilogue
+        |
+        Postface
         ;
 
+
 Private
         :
-        TOK_PRIVATE TOK_STRING_LITERAL TOK_IDENTIFIER ';'
+        TOK_PRIVATE TypeIdent ';'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING_PRIVATE, NULL, 
-                 genbind_new_node(GENBIND_NODE_TYPE_IDENT,  
-                   genbind_new_node(GENBIND_NODE_TYPE_STRING, NULL, $2), $3));
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_PRIVATE, NULL, $2);
         }
         ;
 
 Internal
         :
-        TOK_INTERNAL TOK_STRING_LITERAL TOK_IDENTIFIER ';'
+        TOK_INTERNAL TypeIdent ';'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING_INTERNAL, NULL, 
-                 genbind_new_node(GENBIND_NODE_TYPE_IDENT,  
-                   genbind_new_node(GENBIND_NODE_TYPE_STRING, NULL, $2), $3));
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_INTERNAL, NULL, $2);
         }
         ;
 
-Interface
-        : 
-        TOK_INTERFACE TOK_IDENTIFIER ';'
-        {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING_INTERFACE, NULL,
-                 genbind_new_node(GENBIND_NODE_TYPE_IDENT, NULL, $2));
-        }
-        |
-        TOK_INTERFACE TOK_IDENTIFIER '{' '}'
-        {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING_INTERFACE, NULL,
-                 genbind_new_node(GENBIND_NODE_TYPE_IDENT, NULL, $2));
-        }
-        |
-        TOK_INTERFACE TOK_IDENTIFIER '{' InterfaceArgs '}'
-        {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING_INTERFACE,
-                                NULL,
-                                genbind_new_node(GENBIND_NODE_TYPE_IDENT, $4, $2));
-        }
-        ;
-
-InterfaceArgs
+ClassFlag
         :
-        InterfaceArg
-        |
-        InterfaceArgs InterfaceArg
-        {
-          $$ = genbind_node_link($2, $1);
-        }
-        ;
-
-InterfaceArg
-        :
-        TOK_FLAGS InterfaceFlags ';'
+        TOK_FLAGS ClassFlags ';'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING_INTERFACE_FLAGS, NULL, $2);
+          $$ = genbind_new_node(GENBIND_NODE_TYPE_FLAGS, NULL, $2);
         }
         ;
 
-InterfaceFlags
+ClassFlags
         :
         TOK_IDENTIFIER
         {
           $$ = genbind_new_node(GENBIND_NODE_TYPE_IDENT, NULL, $1);
         }
         |
-        InterfaceFlags ',' TOK_IDENTIFIER
+        ClassFlags ',' TOK_IDENTIFIER
         {
           $$ = genbind_new_node(GENBIND_NODE_TYPE_IDENT, $1, $3);
         }
@@ -371,13 +418,12 @@ Property
         :
         TOK_PROPERTY Modifiers TOK_IDENTIFIER ';'
         {
-          $$ = genbind_new_node(GENBIND_NODE_TYPE_BINDING_PROPERTY, 
-                                NULL, 
-                                genbind_new_node(GENBIND_NODE_TYPE_MODIFIER, 
-                                                 genbind_new_node(GENBIND_NODE_TYPE_IDENT, 
-                                                                  NULL, 
-                                                                  $3),
-                                                 (void *)$2));
+                $$ = genbind_new_node(GENBIND_NODE_TYPE_PROPERTY, NULL,
+                        genbind_new_node(GENBIND_NODE_TYPE_MODIFIER,
+                                genbind_new_node(GENBIND_NODE_TYPE_IDENT,
+                                                 NULL,
+                                                 $3),
+                                         (void *)$2));
         }
         ;
 
diff --git a/src/nsgenbind.c b/src/nsgenbind.c
index d81f30f..3174fa0 100644
--- a/src/nsgenbind.c
+++ b/src/nsgenbind.c
@@ -22,201 +22,173 @@ struct options *options;
 
 static struct options* process_cmdline(int argc, char **argv)
 {
-	int opt;
+        int opt;
 
-	options = calloc(1,sizeof(struct options));
-	if (options == NULL) {
-		fprintf(stderr, "Allocation error\n");
-		return NULL;
-	}
+        options = calloc(1,sizeof(struct options));
+        if (options == NULL) {
+                fprintf(stderr, "Allocation error\n");
+                return NULL;
+        }
 
-	while ((opt = getopt(argc, argv, "vgDW::d:I:o:h:")) != -1) {
-		switch (opt) {
-		case 'I':
-			options->idlpath = strdup(optarg);
-			break;
+        while ((opt = getopt(argc, argv, "vgDW::I:")) != -1) {
+                switch (opt) {
+                case 'I':
+                        options->idlpath = strdup(optarg);
+                        break;
 
-		case 'o':
-			options->outfilename = strdup(optarg);
-			break;
+                case 'v':
+                        options->verbose = true;
+                        break;
 
-		case 'h':
-			options->hdrfilename = strdup(optarg);
-			break;
+                case 'D':
+                        options->debug = true;
+                        break;
 
-		case 'd':
-			options->depfilename = strdup(optarg);
-			break;
+                case 'g':
+                        options->dbglog = true;
+                        break;
 
-		case 'v':
-			options->verbose = true;
-			break;
+                case 'W':
+                        options->warnings = 1; /* warning flags */
+                        break;
 
-		case 'D':
-			options->debug = true;
-			break;
+                default: /* '?' */
+                        fprintf(stderr,
+                             "Usage: %s [-v] [-g] [-D] [-W] [-I idlpath] inputfile outputdir\n",
+                                argv[0]);
+                        free(options);
+                        return NULL;
 
-		case 'g':
-			options->dbglog = true;
-			break;
+                }
+        }
 
-		case 'W':
-			options->warnings = 1; /* warning flags */
-			break;
+        if (optind > (argc - 2)) {
+                fprintf(stderr,
+                       "Error: expected input filename and output directory\n");
+                free(options);
+                return NULL;
+        }
 
-		default: /* '?' */
-			fprintf(stderr,
-			     "Usage: %s [-v] [-g] [-D] [-W] [-d depfilename] [-I idlpath] [-o filename] [-h headerfile] inputfile\n",
-				argv[0]);
-			free(options);
-			return NULL;
+        options->infilename = strdup(argv[optind]);
 
-		}
-	}
+        options->outdirname = strdup(argv[optind + 1]);
 
-	if (optind >= argc) {
-		fprintf(stderr, "Error: expected input filename\n");
-		free(options);
-		return NULL;
-	}
-
-	options->infilename = strdup(argv[optind]);
-
-	return options;
+        return options;
 
 }
 
 static int generate_binding(struct genbind_node *binding_node, void *ctx)
 {
-	struct genbind_node *genbind_root = ctx;
-	char *type;
-	int res = 10;
-
-	type = genbind_node_gettext(
-		genbind_node_find_type(
-			genbind_node_getnode(binding_node),
-			NULL,
-			GENBIND_NODE_TYPE_TYPE));
-
-	if (strcmp(type, "jsapi_libdom") == 0) {
-		res = jsapi_libdom_output(options, genbind_root, binding_node);
-	} else {
-		fprintf(stderr, "Error: unsupported binding type \"%s\"\n", type);
-	}
-
-	return res;
+        struct genbind_node *genbind_root = ctx;
+        char *type;
+        int res = 10;
+
+        type = genbind_node_gettext(
+                genbind_node_find_type(
+                        genbind_node_getnode(binding_node),
+                        NULL,
+                        GENBIND_NODE_TYPE_TYPE));
+
+        if (strcmp(type, "jsapi_libdom") == 0) {
+                res = jsapi_libdom_output(options, genbind_root, binding_node);
+        } else {
+                fprintf(stderr, "Error: unsupported binding type \"%s\"\n", type);
+        }
+
+        return res;
+}
+
+enum bindingtype_e {
+    BINDINGTYPE_UNKNOWN,
+    BINDINGTYPE_JSAPI_LIBDOM,
+    BINDINGTYPE_DUK_LIBDOM,
+};
+
+/**
+ * get the type of binding
+ */
+static enum bindingtype_e genbind_get_type(struct genbind_node *node)
+{
+        struct genbind_node *binding_node;
+        const char *binding_type;
+
+        binding_node = genbind_node_find_type(node,
+                                              NULL,
+                                              GENBIND_NODE_TYPE_BINDING);
+        if (binding_node == NULL) {
+            /* binding entry is missing which is invalid */
+            return BINDINGTYPE_UNKNOWN;
+        }
+
+        binding_type = genbind_node_gettext(
+                genbind_node_find_type(
+                        genbind_node_getnode(binding_node),
+                        NULL,
+                        GENBIND_NODE_TYPE_TYPE));
+        if (binding_type == NULL) {
+                fprintf(stderr, "Error: missing binding type\n");
+                return BINDINGTYPE_UNKNOWN;
+        }
+
+        if (strcmp(binding_type, "jsapi_libdom") == 0) {
+                return BINDINGTYPE_JSAPI_LIBDOM;
+        }
+
+        if (strcmp(binding_type, "duk_libdom") == 0) {
+                return BINDINGTYPE_DUK_LIBDOM;
+        }
+
+        fprintf(stderr, "Error: unsupported binding type \"%s\"\n", binding_type);
+
+        return BINDINGTYPE_UNKNOWN;
 }
 
 int main(int argc, char **argv)
 {
-	int res;
-	struct genbind_node *genbind_root;
-
-	options = process_cmdline(argc, argv);
-	if (options == NULL) {
-		return 1; /* bad commandline */
-	}
-
-	if (options->verbose &&
-	    (options->outfilename == NULL)) {
-		fprintf(stderr,
-			"Error: output to stdout with verbose logging would fail\n");
-		return 2;
-	}
-
-	if (options->depfilename != NULL &&
-	    options->outfilename == NULL) {
-		fprintf(stderr,
-			"Error: output to stdout with dep generation would fail\n");
-		return 3;
-	}
-
-	if (options->depfilename != NULL &&
-	    options->infilename == NULL) {
-		fprintf(stderr,
-			"Error: input from stdin with dep generation would fail\n");
-		return 3;
-	}
-
-	/* open dependancy file */
-	if (options->depfilename != NULL) {
-		options->depfilehandle = fopen(options->depfilename, "w");
-		if (options->depfilehandle == NULL) {
-			fprintf(stderr,
-				"Error: unable to open dep file\n");
-			return 4;
-		}
-		fprintf(options->depfilehandle,
-			"%s %s :", options->depfilename,
-			options->outfilename);
-	}
-
-	/* parse input and generate dependancy */
-	res = genbind_parsefile(options->infilename, &genbind_root);
-	if (res != 0) {
-		fprintf(stderr, "Error: parse failed with code %d\n", res);
-		return res;
-	}
-
-	/* dependancy generation complete */
-	if (options->depfilehandle != NULL) {
-		fputc('\n', options->depfilehandle);
-		fclose(options->depfilehandle);
-	}
-
-
-	/* open output file */
-	if (options->outfilename == NULL) {
-		options->outfilehandle = stdout;
-	} else {
-		options->outfilehandle = fopen(options->outfilename, "w");
-	}
-	if (options->outfilehandle == NULL) {
-		fprintf(stderr, "Error opening source output %s: %s\n",
-			options->outfilename,
-			strerror(errno));
-		return 5;
-	}
-
-	/* open output header file if required */
-	if (options->hdrfilename != NULL) {
-		options->hdrfilehandle = fopen(options->hdrfilename, "w");
-		if (options->hdrfilehandle == NULL) {
-			fprintf(stderr, "Error opening header output %s: %s\n",
-				options->hdrfilename,
-				strerror(errno));
-			/* close and unlink output file */
-			fclose(options->outfilehandle);
-			if (options->outfilename != NULL) {
-				unlink(options->outfilename);
-			}
-			return 6;
-		}
-	} else {
-		options->hdrfilehandle = NULL;
-	}
-
-	/* dump the AST */
-	if (options->verbose) {
-		genbind_ast_dump(genbind_root, 0);
-	}
-
-	/* generate output for each binding */
-	res = genbind_node_foreach_type(genbind_root,
-					GENBIND_NODE_TYPE_BINDING,
-					generate_binding,
-					genbind_root);
-	if (res != 0) {
-		fprintf(stderr, "Error: output failed with code %d\n", res);
-		if (options->outfilename != NULL) {
-			unlink(options->outfilename);
-		}
-		if (options->hdrfilename != NULL) {
-			unlink(options->hdrfilename);
-		}
-		return res;
-	}
-
-
-	return 0;
+        int res;
+        struct genbind_node *genbind_root;
+        enum bindingtype_e bindingtype;
+
+        options = process_cmdline(argc, argv);
+        if (options == NULL) {
+                return 1; /* bad commandline */
+        }
+
+        /* parse input and generate dependancy */
+        res = genbind_parsefile(options->infilename, &genbind_root);
+        if (res != 0) {
+                fprintf(stderr, "Error: parse failed with code %d\n", res);
+                return res;
+        }
+
+        /* dump the AST */
+        genbind_dump_ast(genbind_root);
+
+        /* get bindingtype */
+        bindingtype = genbind_get_type(genbind_root);
+        if (bindingtype == BINDINGTYPE_UNKNOWN) {
+                return 3;
+        }
+
+#if 0
+        genbind_load_idl(genbind_root);
+
+        /* generate output for each binding */
+        res = genbind_node_foreach_type(genbind_root,
+                                        GENBIND_NODE_TYPE_BINDING,
+                                        generate_binding,
+                                        genbind_root);
+        if (res != 0) {
+                fprintf(stderr, "Error: output failed with code %d\n", res);
+                if (options->outfilename != NULL) {
+                        unlink(options->outfilename);
+                }
+                if (options->hdrfilename != NULL) {
+                        unlink(options->hdrfilename);
+                }
+                return res;
+        }
+
+#endif
+        return 0;
 }
diff --git a/src/options.h b/src/options.h
index cbac9a3..68a4bc1 100644
--- a/src/options.h
+++ b/src/options.h
@@ -12,16 +12,11 @@
 /** global options */
 struct options {
 	char *infilename; /**< binding source */
-
-	char *outfilename; /**< output source file */
-	FILE *outfilehandle; /**< output file handle */
-
-	char *hdrfilename; /**< output header file */
-	FILE *hdrfilehandle; /**< output file handle */
-
-	char *depfilename; /**< dependancy output*/
-	FILE *depfilehandle; /**< dependancy file handle */
-
+	char *outdirname; /**< output directory */
+FILE *hdrfilehandle;
+char *hdrfilename;
+char *outfilename;
+FILE *outfilehandle;
 	char *idlpath; /**< path to IDL files */
 
 	bool verbose; /**< verbose processing */
diff --git a/src/utils.c b/src/utils.c
new file mode 100644
index 0000000..7bab058
--- /dev/null
+++ b/src/utils.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include "options.h"
+#include "utils.h"
+
+FILE *genb_fopen(const char *fname, const char *mode)
+{
+    char *fpath;
+    int fpathl;
+    FILE *filef;
+
+    fpathl = strlen(options->outdirname) + strlen(fname) + 2;
+    fpath = malloc(fpathl);
+    snprintf(fpath, fpathl, "%s/%s", options->outdirname, fname);
+
+    filef = fopen(fpath, mode);
+    if (filef == NULL) {
+        fprintf(stderr, "Error: unable to open file %s (%s)\n",
+                fpath, strerror(errno));
+        free(fpath);
+        return NULL;
+    }
+    free(fpath);
+
+    return filef;
+}
+
+#ifdef NEED_STRNDUP
+
+char *strndup(const char *s, size_t n)
+{
+	size_t len;
+	char *s2;
+
+	for (len = 0; len != n && s[len]; len++)
+		continue;
+
+	s2 = malloc(len + 1);
+	if (!s2)
+		return 0;
+
+	memcpy(s2, s, len);
+	s2[len] = 0;
+	return s2;
+}
+
+#endif
+
diff --git a/src/utils.h b/src/utils.h
new file mode 100644
index 0000000..98a4c6b
--- /dev/null
+++ b/src/utils.h
@@ -0,0 +1,21 @@
+/* utility helpers
+ *
+ * This file is part of nsnsgenbind.
+ * Licensed under the MIT License,
+ *                http://www.opensource.org/licenses/mit-license.php
+ * Copyright 2015 Vincent Sanders <vince@netsurf-browser.org>
+ */
+
+#ifndef nsgenbind_utils_h
+#define nsgenbind_utils_h
+
+FILE *genb_fopen(const char *fname, const char *mode);
+
+#ifdef _WIN32
+#define NEED_STRNDUP 1
+char *strndup(const char *s, size_t n);
+#endif
+
+#define SLEN(x) (sizeof((x)) - 1)
+
+#endif