Initial checkin of burg files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3785 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 38 insertions, 0 deletions

diff --git a/utils/Burg/pattern.c b/utils/Burg/pattern.c
new file mode 100644
index 0000000..472aca5
--- /dev/null
+++ b/utils/Burg/pattern.c
@@ -0,0 +1,38 @@
+char rcsid_pattern[] = "$Id$";
+
+#include <stdio.h>
+#include "b.h"
+
+Pattern
+newPattern(op) Operator op;
+{
+	Pattern p;
+
+	p = (Pattern) zalloc(sizeof(struct pattern));
+	p->op = op;
+	return p;
+}
+
+void
+dumpPattern(p) Pattern p;
+{
+	int i;
+
+	if (!p) {
+		printf("[no-pattern]");
+		return;
+	}
+
+	if (p->op) {
+		printf("%s", p->op->name);
+		if (p->op->arity > 0) {
+			printf("(");
+			for (i = 0; i < p->op->arity; i++) {
+				printf("%s ", p->children[i]->name);
+			}
+			printf(")");
+		}
+	} else {
+		printf("%s", p->children[0]->name);
+	}
+}