private Vector readlinesfromfile(String fname) { // trims lines and removes comments
Vector v = new Vector();
try {
BufferedReader br = new BufferedReader(new FileReader(new File(fname)));
while (br.ready()) {
String tmp = br.readLine();
// Strip comments
while (tmp.indexOf("/*") >= 0) {
int i = tmp.indexOf("/*");
v.add(tmp.substring(0, i));
String rest = tmp.substring(i + 2);
while (tmp.indexOf("*/") == -1) {
tmp = br.readLine();
}
tmp = tmp.substring(tmp.indexOf("*/") + 2);
}
if (tmp.indexOf("//") >= 0) tmp = tmp.substring(0, tmp.indexOf("//"));
// Strip spaces
tmp = tmp.trim();
v.add(tmp);
// System.out.println("Read line "+tmp);
}
br.close();
} catch (Exception e) {
System.out.println("Exception " + e + " occured");
}
return v;
}
public void read() {
System.out.println("Reading file " + filename);
Vector ls = readlinesfromfile(filename);
int i = 0;
while (i < ls.size()
&& !((String) ls.get(i)).startsWith("class")
&& !((String) ls.get(i)).startsWith("public class")) {
precode += (String) ls.get(i) + "\n";
i++;
}
while (i < ls.size()) {
JString l = new JString((String) ls.get(i));
// System.out.println("Looking for a class in "+l);
boolean pubclass = false;
if (l.starts("public ")) {
pubclass = true;
l = l.after(" ");
}
if (l.starts("class ")) {
// Parse class
// Parse first line
l = l.after("class ");
Class c = new Class(pubclass, l.before(" ").toString());
l = l.after(" ");
l = l.removeall(",");
if (l.starts("extends ")) {
l = l.after("extends ");
while (!l.starts("{") && !l.starts("implements")) {
c.extended.add(l.before(" "));
l = l.after(" ");
}
}
if (l.starts("implements ")) {
l = l.after("implements ");
while (!l.starts("{")) {
c.implemented.add(l.before(" "));
l = l.after(" ");
}
}
l = l.expect("{");
i++;
l = new JString((String) ls.get(i));
while (!l.r.equals("}")) {
// System.out.println("Parsing class "+c.name+" at "+l);
if (l.r.length() == 0) i++;
else {
// Parse a constructor, field or method
String type = "";
boolean priv = true;
boolean stat = false;
boolean fin = false;
boolean con = false;
String a = l.getalphanum().toString();
// System.out.println("Comparing >"+a+"< to class name >"+c.name+"<");
// System.out.println("Line now "+l);
if (a.equals(c.name)) { // Constructor
con = true;
// System.out.println("hello\n");
} else {
type = l.before(" ").toString();
l = l.after(" ");
if (type.equals("public")) {
priv = false;
type = l.before(" ").toString();
l = l.after(" ");
}
if (type.equals("private")) {
priv = true;
type = l.before(" ").toString();
l = l.after(" ");
}
if (type.equals("static")) {
stat = true;
type = l.before(" ").toString();
l = l.after(" ");
}
// System.out.println("Checking "+type+" for \"final\"");
if (type.equals("final")) { // Should this be before static?
fin = true;
type = l.before(" ").toString();
l = l.after(" ");
}
}
String name = l.getalphanum().toString();
// System.out.println("Got name "+name+" in line "+l);
l = l.after(name);
l.r = l.r.trim();
// Is it a variable (field) ?
// Are there more than one?
// System.out.println("Looking for = or ; in "+l);
while (l.starts(",")) {
// ***
Field f = new Field(type, name, "");
c.fields.add(f);
l = l.after(",");
name = l.getalphanum().toString();
l = l.after(name);
l.r = l.r.trim();
}
// Is this the last one?
if (l.starts("=") || l.starts(";")) {
// System.out.println("Starts = or ;");
String init = "";
if (l.starts("=")) {
init = l.after("=").before(";").toString();
}
Field f = new Field(priv, stat, fin, type, name, init);
c.fields.add(f);
i++;
// System.out.println("Added field "+f);
} else { // It must be a method
l = l.expect("(");
Method m = new Method(con, !priv, stat, type, name);
while (!l.starts(")")) {
String atype = l.before(" ").toString();
l = l.from(" ");
String aname; // Is it last?
if (l.r.indexOf(",") != -1) {
aname = l.before(",").toString();
l = l.after(",");
} else {
aname = l.before(")").toString();
l = l.after(aname);
}
m.args.add(new Argument(atype, aname));
}
l = l.expect(")");
l.r = l.r.trim();
l.expect("{");
// Read code
i++;
int curlycount = 1;
while (curlycount > 0) {
l = new JString((String) ls.get(i));
for (int j = 0; j < l.r.length(); j++) {
if (l.r.charAt(j) == '{') curlycount++;
if (l.r.charAt(j) == '}') curlycount--;
}
if (curlycount > 0) {
String ind = " ";
for (int ib = 1; ib <= curlycount; ib++) ind += " ";
m.code += ind + l + "\n";
// System.out.println("Adding code "+l);
}
i++;
// System.out.println("Ended on line "+(String)ls.get(i));
}
c.methods.add(m);
}
}
// System.out.println("Got so far with class "+c);
// i++;
l = new JString((String) ls.get(i));
// System.out.println("Checking line "+l);
}
classes.add(c);
} else {
// precode+=(String)ls.get(i)+"\n";
i++;
}
}
System.out.println("Found " + classes.size() + " classes.");
}