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- /*
- * Copyright (c) 2006-2015 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.commandparser.aliases;
-
- import com.dmdirc.commandparser.CommandType;
- import com.dmdirc.interfaces.CommandController;
-
- import com.google.common.base.CharMatcher;
- import com.google.common.base.Joiner;
- import com.google.common.base.Splitter;
- import com.google.common.base.Strings;
-
- import java.util.ArrayList;
- import java.util.List;
- import java.util.stream.Collectors;
-
- import javax.inject.Inject;
- import javax.inject.Singleton;
-
- import static com.google.common.base.Preconditions.checkArgument;
- import static com.google.common.base.Preconditions.checkNotNull;
-
- /**
- * Handles the creation of new aliases.
- */
- @Singleton
- public class AliasFactory {
-
- /** The controller to use to trim command chars. */
- private final CommandController commandController;
-
- @Inject
- public AliasFactory(final CommandController commandController) {
- this.commandController = commandController;
- }
-
- /**
- * Creates a new alias.
- *
- * @param name The name of the alias to be created.
- * @param minArguments The minimum number of arguments the alias requires.
- * @param substitution The command to substitute when the alias is executed.
- *
- * @return A new alias with the given attributes.
- */
- public Alias createAlias(final String name, final int minArguments, final String substitution) {
- checkNotNull(name);
- checkArgument(!Strings.isNullOrEmpty(name));
- checkArgument(minArguments >= 0);
- checkNotNull(substitution);
-
- // TODO: Infer command type from the substituted command
- return new Alias(CommandType.TYPE_GLOBAL, removeCommandChar(name), minArguments,
- removeCommandChar(substitution));
- }
-
- private String removeCommandChar(final String input) {
- // TODO: This could be moved into the command controller, or a utility class.
- // CommandArguments does something similar.
- final List<String> lines = Splitter.on(CharMatcher.anyOf("\r\n"))
- .omitEmptyStrings()
- .splitToList(input);
- final List<String> trimmedLines = new ArrayList<>(lines.size());
- trimmedLines.addAll(lines.stream()
- .map(line -> line.charAt(0) == commandController.getCommandChar() ?
- line.length() > 1 && line.charAt(1) == commandController.getSilenceChar() ?
- line.substring(2) : line.substring(1) : line)
- .collect(Collectors.toList()));
- return Joiner.on("\r\n").join(trimmedLines);
- }
-
- }
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