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import java.io.*;
import java.util.StringTokenizer;
public class ImplGen
{
BufferedWriter out;
String className;
String defaultReturn;
void trace(String msg)
{
System.out.println(msg);
}
void err(String msg)
{
System.out.print("error:");
System.out.println(msg);
}
void p(String s)
{
try
{
out.write(s);
}
catch (IOException e)
{
}
}
void sp(int count)
{
for (int i=0 ; i<count ; i++)
p(" ");
}
void process(String s)
{
if (s.startsWith("## "))
{
className = s.substring(3);
}
if (s.startsWith("DOMString"))
{
defaultReturn = "DOMString(\"\")";
}
else if (s.startsWith("bool"))
{
defaultReturn = "false";
}
else if (s.startsWith("void"))
{
defaultReturn = "";
}
else if (s.startsWith("unsigned long") || s.startsWith("long"))
{
defaultReturn = "0L";
}
else if (s.startsWith("unsigned short") || s.startsWith("short"))
{
defaultReturn = "0";
}
else if (s.startsWith("float") || s.startsWith("double"))
{
defaultReturn = "0.0";
}
else if (s.length()>0 && Character.isLetter(s.charAt(0)))
{
defaultReturn = "NULL";
}
else if (s.startsWith("~"))
{
defaultReturn = "";
}
int pos = s.indexOf("(");
if (!s.startsWith("~") && pos > 0 &&
Character.isLetterOrDigit(s.charAt(pos-1)))
{
while (Character.isLetterOrDigit(s.charAt(pos-1)))
pos--;
String news = s.substring(0, pos) +
className + "::" +
s.substring(pos);
s = news;
}
if (s.startsWith("~"))
{
p(className); p("::");
p(s); p("\n");
}
else if (s.startsWith("}") && defaultReturn.length()>0)
{
p(" return "); p(defaultReturn); p(";"); p("\n");
p(s); p("\n");
}
else
{
p(s); p("\n");
}
}
void doIt(String inName)
{
String cppName = inName + ".cpp";
try
{
BufferedReader in = new BufferedReader(new FileReader(inName));
out = new BufferedWriter(new FileWriter(cppName));
while (true)
{
String s = in.readLine();
if (s == null)
break;
process(s);
}
in.close();
out.close();
}
catch (Exception e)
{
}
}
public ImplGen()
{
}
public static void main(String argv[])
{
if (argv.length != 1)
{
System.out.println("usage: ImplGen <source .h file>");
return;
}
ImplGen ig = new ImplGen();
ig.doIt(argv[0]);
}
}
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