/*
* This file is part of the Haven & Hearth game client.
* Copyright (C) 2009 Fredrik Tolf <fredrik@dolda2000.com>, and
* Björn Johannessen <johannessen.bjorn@gmail.com>
*
* Redistribution and/or modification of this file is subject to the
* terms of the GNU Lesser General Public License, version 3, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Other parts of this source tree adhere to other copying
* rights. Please see the file `COPYING' in the root directory of the
* source tree for details.
*
* A copy the GNU Lesser General Public License is distributed along
* with the source tree of which this file is a part in the file
* `doc/LPGL-3'. If it is missing for any reason, please see the Free
* Software Foundation's website at <http://www.fsf.org/>, or write
* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*/
package haven;
import java.util.*;
public class PosixArgs {
private List<Arg> parsed;
public String[] rest;
public String arg = null;
private static class Arg {
private char ch;
private String arg;
private Arg(char ch, String arg) {
this.ch = ch;
this.arg = arg;
}
}
private PosixArgs() {
parsed = new ArrayList<Arg>();
}
public static PosixArgs getopt(String[] argv, int start, String desc) {
PosixArgs ret = new PosixArgs();
List<Character> fl = new ArrayList<Character>(), fla = new ArrayList<Character>();
List<String> rest = new ArrayList<String>();
for(int i = 0; i < desc.length();) {
char ch = desc.charAt(i++);
if((i < desc.length()) && (desc.charAt(i) == ':')) {
i++;
fla.add(ch);
} else {
fl.add(ch);
}
}
boolean acc = true;
for(int i = start; i < argv.length;) {
String arg = argv[i++];
if(acc && arg.equals("--")) {
acc = false;
} if(acc && (arg.charAt(0) == '-')) {
for(int o = 1; o < arg.length();) {
char ch = arg.charAt(o++);
if(fl.contains(ch)) {
ret.parsed.add(new Arg(ch, null));
} else if(fla.contains(ch)) {
if(o < arg.length()) {
ret.parsed.add(new Arg(ch, arg.substring(o)));
break;
} else if(i < argv.length) {
ret.parsed.add(new Arg(ch, argv[i++]));
break;
} else {
System.err.println("option requires an argument -- '" + ch + "'");
return(null);
}
} else {
System.err.println("invalid option -- '" + ch + "'");
return(null);
}
}
} else {
rest.add(arg);
}
}
ret.rest = rest.toArray(new String[0]);
return(ret);
}
public static PosixArgs getopt(String[] argv, String desc) {
return(getopt(argv, 0, desc));
}
public Iterable<Character> parsed() {
return(new Iterable<Character>() {
public Iterator<Character> iterator() {
return(new Iterator<Character>() {
private int i = 0;
public boolean hasNext() {
return(i < parsed.size());
}
public Character next() {
if(i >= parsed.size())
throw(new NoSuchElementException());
Arg a = parsed.get(i++);
arg = a.arg;
return(a.ch);
}
public void remove() {
throw(new UnsupportedOperationException());
}
});
}
});
}
}