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package org.bukkit.command;
import java.util.ArrayList;
import java.util.logging.Level;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.player.PlayerCommandPreprocessEvent;
import org.bukkit.event.server.RemoteServerCommandEvent;
import org.bukkit.event.server.ServerCommandEvent;
public class FormattedCommandAlias extends Command {
private final String[] formatStrings;
public FormattedCommandAlias(String alias, String[] formatStrings) {
super(alias);
this.formatStrings = formatStrings;
}
@Override
public boolean execute(CommandSender sender, String commandLabel, String[] args) {
boolean result = false;
ArrayList<String> commands = new ArrayList<String>();
for (String formatString : formatStrings) {
try {
commands.add(buildCommand(formatString, args));
} catch (Throwable throwable) {
if (throwable instanceof IllegalArgumentException) {
sender.sendMessage(throwable.getMessage());
} else {
sender.sendMessage(org.bukkit.ChatColor.RED + "An internal error occurred while attempting to perform this command");
}
return false;
}
}
for (String command : commands) {
result |= Bukkit.dispatchCommand(sender, command);
}
return result;
}
private String buildCommand(String formatString, String[] args) {
int index = formatString.indexOf("$");
while (index != -1) {
int start = index;
if (index > 0 && formatString.charAt(start - 1) == '\\') {
formatString = formatString.substring(0, start - 1) + formatString.substring(start);
index = formatString.indexOf("$", index);
continue;
}
boolean required = false;
if (formatString.charAt(index + 1) == '$') {
required = true;
// Move index past the second $
index++;
}
// Move index past the $
index++;
int argStart = index;
while (index < formatString.length() && inRange(((int) formatString.charAt(index)) - 48, 0, 9)) {
// Move index past current digit
index++;
}
// No numbers found
if (argStart == index) {
throw new IllegalArgumentException("Invalid replacement token");
}
int position = Integer.valueOf(formatString.substring(argStart, index));
// Arguments are not 0 indexed
if (position == 0) {
throw new IllegalArgumentException("Invalid replacement token");
}
// Convert position to 0 index
position--;
boolean rest = false;
if (index < formatString.length() && formatString.charAt(index) == '-') {
rest = true;
// Move index past the -
index++;
}
int end = index;
if (required && position >= args.length) {
throw new IllegalArgumentException("Missing required argument " + (position + 1));
}
StringBuilder replacement = new StringBuilder();
if (rest && position < args.length) {
for (int i = position; i < args.length; i++) {
if (i != position) {
replacement.append(' ');
}
replacement.append(args[i]);
}
} else if (position < args.length) {
replacement.append(args[position]);
}
formatString = formatString.substring(0, start) + replacement.toString() + formatString.substring(end);
// Move index past the replaced data so we don't process it again
index = start + replacement.length();
// Move to the next replacement token
index = formatString.indexOf("$", index);
}
return formatString;
}
private static boolean inRange(int i, int j, int k) {
return i >= j && i <= k;
}
}
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