/****************************************************/
/* File: util.h                                     */
/* Main program for c- compiler                     */
/* Compiler Construction: Principles and Practice   */
/* Maker:Liukai                                     */
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#ifndef _UTIL_H_
#define _UTIL_H_

/* Procedure printToken prints a token 
 * and its lexeme to the listing file
 */
void printToken( TokenType, const char* );

/* Function newStmtNode creates a new statement
 * node for syntax tree construction
 */
TreeNode * newStmtNode(StmtKind);

/* Function newExpNode creates a new expression 
 * node for syntax tree construction
 */
TreeNode * newExpNode(ExpKind);

/* Function copyString allocates and makes a new
 * copy of an existing string
 */
char * copyString( char * );

/* procedure printTree prints a syntax tree to the 
 * listing file using indentation to indicate subtrees
 */
void printTree( TreeNode * );

#endif