《词法分析器的源程序java》.doc

源程序 package Analyer; import java.io.File; import java.io.FileReader; import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.IOException; import java.util.ArrayList; import java.util.HashMap; public class analyetest { public ArrayList bracket; public ArrayList keyword; public ArrayList symbol; public ArrayList semicolon; public ArrayList operator; static HashMap BRACKET; static HashMap KEYWORD; static HashMap SEMICOLON; static HashMap OPERATOR; public analyetest() { this.KEYWORD = new HashMap(); this.BRACKET = new HashMap(); this.SEMICOLON = new HashMap(); this.OPERATOR = new HashMap(); this.bracket = new ArrayList(); this.keyword = new ArrayList(); this.symbol = new ArrayList(); this.semicolon = new ArrayList(); this.operator = new ArrayList(); } public void init() { initBracket(); initKeyword(); initSemicolon(); initOperator(); } public void initBracket() { this.BRACKET.put((, (); this.BRACKET.put(), )); this.BRACKET.put([, [); this.BRACKET.put(], ]); this.BRACKET.put({, {); this.BRACKET.put(}, }); } public void initKeyword() { this.KEYWORD.put(class, class); this.KEYWORD.put(package, package); this.KEYWORD.put(this, this); this.KEYWORD.put(abstract, abstract); this.KEYWORD.put(boolean, boolean); this.KEYWORD.put(break, break); this.KEYWORD.put(byte, byte); this.KEYWORD.put(case, case); this.KEYWORD.put(cast, cast); this.KEYWORD.put(catch, catch); this.KEYWORD.put(char, char); this.KEYWORD.put(continue, continue); this.KEYWORD.put(default, default); this.KEYWORD.put(do, do); this.KEYWORD.put(double, double); this.KEYWORD.put(else, else); this.KEYWORD.put(extends, extends); this.KEYWORD.put(false, false); this.KEYWORD.put(final, final); this.KEYWORD.put(finally, finally); this.KEYWORD.put(float, float); this.KEYWORD.put(for, for); this.KEYWORD.put(future, future); this.KEYWORD.put(generic, generic); this.KEYWORD.put(if, if); this