From 9a71e795dc14c401e501125865b2a15fe59f617b Mon Sep 17 00:00:00 2001
From: Tucker Evans <tuckerevans24@gmail.com>
Date: Sun, 14 Jul 2019 13:24:52 -0400
Subject: Add parse tree

---
 tree.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 tree.h

(limited to 'tree.h')

diff --git a/tree.h b/tree.h
new file mode 100644
index 0000000..b7349af
--- /dev/null
+++ b/tree.h
@@ -0,0 +1,27 @@
+#ifndef TREE_H
+#define TREE_H
+
+typedef struct parse_tree {
+	int type;
+	union {
+		int ival; /* NUM */
+		float rval; /* RNUM */
+		char *sval; /* ID */
+		int opval; /* RELOP: LT LE GT GE EQ NE
+			      ADDOP: PLUS MINUS OR
+			      MULOP: MUL DIV
+		*/
+	} attr;
+	struct parse_tree *l, *r;
+} ptree;
+
+void aux_tree_print(ptree*, int);
+void print_tree(ptree*);
+
+ptree* mktree(int, ptree*, ptree*);
+ptree* mkid(char*);
+ptree* mkinum(int);
+ptree* mkrnum(float);
+ptree* mkop(int, int, ptree*, ptree*);
+
+#endif
-- 
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