/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extension.factory;
import com.sk89q.worldedit.EmptyClipboardException;
import com.sk89q.worldedit.LocalSession;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.extension.input.ParserContext;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.function.pattern.ClipboardPattern;
import com.sk89q.worldedit.function.pattern.Pattern;
import com.sk89q.worldedit.internal.registry.InputParser;
import com.sk89q.worldedit.extension.input.InputParseException;
import com.sk89q.worldedit.session.ClipboardHolder;
class HashTagPatternParser extends InputParser<Pattern> {
HashTagPatternParser(WorldEdit worldEdit) {
super(worldEdit);
}
@Override
public Pattern parseFromInput(String input, ParserContext context) throws InputParseException {
if (input.charAt(0) == '#') {
if (!input.equals("#clipboard") && !input.equals("#copy")) {
throw new InputParseException("#clipboard or #copy is acceptable for patterns starting with #");
}
LocalSession session = context.requireSession();
if (session != null) {
try {
ClipboardHolder holder = session.getClipboard();
Clipboard clipboard = holder.getClipboard();
return new ClipboardPattern(clipboard);
} catch (EmptyClipboardException e) {
throw new InputParseException("To use #clipboard, please first copy something to your clipboard");
}
} else {
throw new InputParseException("No session is available, so no clipboard is available");
}
} else {
return null;
}
}
}