Start work on modularising masks and patterns

worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/pattern/ClipboardPatternParser.java

@@ -0,0 +1,64 @@
+/*
+ * 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.parser.pattern;
+
+import com.google.common.collect.Lists;
+import com.sk89q.worldedit.EmptyClipboardException;
+import com.sk89q.worldedit.LocalSession;
+import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.extension.input.InputParseException;
+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.SimpleInputParser;
+import com.sk89q.worldedit.session.ClipboardHolder;
+
+import java.util.List;
+
+public class ClipboardPatternParser extends SimpleInputParser<Pattern> {
+
+    public ClipboardPatternParser(WorldEdit worldEdit) {
+        super(worldEdit);
+    }
+
+    @Override
+    public List<String> getMatchedAliases() {
+        return Lists.newArrayList("#clipboard", "#copy");
+    }
+
+    @Override
+    public Pattern parseFromSimpleInput(String input, ParserContext context) throws InputParseException {
+        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");
+        }
+    }
+
+}

worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/pattern/RandomPatternParser.java

@@ -0,0 +1,70 @@
+/*
+ * 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.parser.pattern;
+
+import com.sk89q.util.StringUtil;
+import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.extension.factory.BlockFactory;
+import com.sk89q.worldedit.extension.input.InputParseException;
+import com.sk89q.worldedit.extension.input.ParserContext;
+import com.sk89q.worldedit.function.pattern.BlockPattern;
+import com.sk89q.worldedit.function.pattern.Pattern;
+import com.sk89q.worldedit.function.pattern.RandomPattern;
+import com.sk89q.worldedit.internal.registry.InputParser;
+import com.sk89q.worldedit.world.block.BlockStateHolder;
+
+public class RandomPatternParser extends InputParser<Pattern> {
+
+    public RandomPatternParser(WorldEdit worldEdit) {
+        super(worldEdit);
+    }
+
+    @Override
+    public Pattern parseFromInput(String input, ParserContext context) throws InputParseException {
+        BlockFactory blockRegistry = worldEdit.getBlockFactory();
+        RandomPattern randomPattern = new RandomPattern();
+
+        String[] splits = input.split(",");
+        for (String token : StringUtil.parseListInQuotes(splits, ',', '[', ']')) {
+            BlockStateHolder block;
+
+            double chance;
+
+            // Parse special percentage syntax
+            if (token.matches("[0-9]+(\\.[0-9]*)?%.*")) {
+                String[] p = token.split("%");
+
+                if (p.length < 2) {
+                    throw new InputParseException("Missing the type after the % symbol for '" + input + "'");
+                } else {
+                    chance = Double.parseDouble(p[0]);
+                    block = blockRegistry.parseFromInput(p[1], context);
+                }
+            } else {
+                chance = 1;
+                block = blockRegistry.parseFromInput(token, context);
+            }
+
+            randomPattern.add(new BlockPattern(block), chance);
+        }
+
+        return randomPattern;
+    }
+}

worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/pattern/SingleBlockPatternParser.java

@@ -0,0 +1,46 @@
+/*
+ * 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.parser.pattern;
+
+import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.extension.input.InputParseException;
+import com.sk89q.worldedit.extension.input.ParserContext;
+import com.sk89q.worldedit.function.pattern.BlockPattern;
+import com.sk89q.worldedit.function.pattern.Pattern;
+import com.sk89q.worldedit.internal.registry.InputParser;
+
+public class SingleBlockPatternParser extends InputParser<Pattern> {
+
+    public SingleBlockPatternParser(WorldEdit worldEdit) {
+        super(worldEdit);
+    }
+
+    @Override
+    public Pattern parseFromInput(String input, ParserContext context) throws InputParseException {
+        String[] items = input.split(",");
+
+        if (items.length == 1) {
+            return new BlockPattern(worldEdit.getBlockFactory().parseFromInput(items[0], context));
+        } else {
+            return null;
+        }
+    }
+
+}