1 files changed, 65 insertions, 0 deletions
diff --git a/iburg/briggs/icg-tools/iburg/iburg.h b/iburg/briggs/icg-tools/iburg/iburg.h
new file mode 100644
index 00000000000..e801d6a1ae5
--- /dev/null
+++ b/iburg/briggs/icg-tools/iburg/iburg.h
@@ -0,0 +1,65 @@
+#ifndef BURG_INCLUDED
+#define BURG_INCLUDED
+
+/* $Id: iburg.h 71 2006-12-11 01:22:25Z drhanson $ */
+/* iburg.c: */
+extern void *alloc(int nbytes);
+
+typedef enum { TERM=1, NONTERM } Kind;
+typedef struct rule *Rule;
+typedef struct term *Term;
+struct term {		/* terminals: */
+	char *name;		/* terminal name */
+	Kind kind;		/* TERM */
+	int esn;		/* external symbol number */
+	int arity;		/* operator arity */
+	Term link;		/* next terminal in esn order */
+	Rule rules;		/* rules whose pattern starts with term */
+};
+
+typedef struct nonterm *Nonterm;
+struct nonterm {	/* non-terminals: */
+	char *name;		/* non-terminal name */
+	Kind kind;		/* NONTERM */
+	int number;		/* identifying number */
+	int lhscount;		/* # times nt appears in a rule lhs */
+	int reached;		/* 1 iff reached from start non-terminal */
+	Rule rules;		/* rules w/non-terminal on lhs */
+	Rule chain;		/* chain rules w/non-terminal on rhs */
+	Nonterm link;		/* next terminal in number order */
+};
+extern Nonterm nonterm(char *id);
+extern Term term(char *id, int esn);
+
+typedef struct tree *Tree;
+struct tree {		/* tree patterns: */
+	void *op;		/* a terminal or non-terminal */
+	Tree left, right;	/* operands */
+	int nterms;		/* number of terminal nodes in this tree */
+};
+extern Tree tree(char *op, Tree left, Tree right);
+
+struct rule {		/* rules: */
+	Nonterm lhs;		/* lefthand side non-terminal */
+	Tree pattern;		/* rule pattern */
+	int ern;		/* external rule number */
+	int packed;		/* packed external rule number */
+	float cost;		/* associated cost */
+	Rule link;		/* next rule in ern order */
+	Rule next;		/* next rule with same pattern root */
+	Rule chain;		/* next chain rule with same rhs */
+	Rule decode;		/* next rule with same lhs */
+	Rule kids;		/* next rule with same burm_kids pattern */
+};
+extern Rule rule(char *id, Tree pattern, int ern, float cost);
+extern float maxcost;		/* maximum cost */
+
+/* gram.y: */
+void yyerror(char *fmt, ...);
+int yyparse(void);
+void yywarn(char *fmt, ...);
+extern int errcnt;
+extern FILE *infp;
+extern FILE *outfp;
+
+#endif