Examples with Suggestions com.mojang.brigadier.suggestion.Suggestions used on opensource projects

Example 1 with Suggestions

use of com.mojang.brigadier.suggestion.Suggestions in project SpongeCommon by SpongePowered.

the class SpongeCommandDispatcher method getCompletionSuggestions.

@Override
public CompletableFuture<Suggestions> getCompletionSuggestions(final ParseResults<CommandSourceStack> parse, final int cursor) {
    final CommandContextBuilder<CommandSourceStack> context = parse.getContext();
    // Sponge Start - redirect if this actually represents a non-Brig command
    final CommandContextBuilder<CommandSourceStack> child = context.getLastChild();
    if (child instanceof SpongeCommandContextBuilder) {
        final SpongeCommandContextBuilder spongeChild = (SpongeCommandContextBuilder) child;
        if (((SpongeCommandContextBuilder) child).representsNonBrigCommand()) {
            // special handling!
            final String rawCommand = parse.getReader().getString();
            final String[] command = spongeChild.nonBrigCommand();
            // we know this will exist.
            final CommandMapping mapping = this.commandManager.commandMapping(command[0]).get();
            return CommandUtil.createSuggestionsForRawCommand(rawCommand, spongeChild.nonBrigCommand(), spongeChild.cause(), mapping).buildFuture();
        }
    }
    // Sponge End
    final SuggestionContext<CommandSourceStack> nodeBeforeCursor = context.findSuggestionContext(cursor);
    final CommandNode<CommandSourceStack> parent = nodeBeforeCursor.parent;
    final int start = Math.min(nodeBeforeCursor.startPos, cursor);
    final String fullInput = parse.getReader().getString();
    final String truncatedInput = fullInput.substring(0, cursor);
    // Sponge Start: the collection might be different.
    final Collection<CommandNode<CommandSourceStack>> children;
    if (parent instanceof SpongeNode) {
        children = ((SpongeNode) parent).getChildrenForSuggestions();
    } else {
        children = parent.getChildren();
    }
    // @SuppressWarnings("unchecked") final CompletableFuture<Suggestions>[] futures = new CompletableFuture[parent.getChildren().size()];
    @SuppressWarnings("unchecked") final CompletableFuture<Suggestions>[] futures = new CompletableFuture[children.size()];
    // Sponge End
    int i = 0;
    for (final CommandNode<CommandSourceStack> node : children) {
        // Sponge: parent.getChildren() -> children
        CompletableFuture<Suggestions> future = Suggestions.empty();
        try {
            future = node.listSuggestions(context.build(truncatedInput), new SuggestionsBuilder(truncatedInput, start));
        } catch (final CommandSyntaxException ignored) {
        }
        futures[i++] = future;
    }
    // See https://github.com/Mojang/brigadier/pull/81
    return CompletableFuture.allOf(futures).handle((voidResult, exception) -> {
        final List<Suggestions> suggestions = new ArrayList<>();
        for (final CompletableFuture<Suggestions> future : futures) {
            if (!future.isCompletedExceptionally()) {
                suggestions.add(future.join());
            }
        }
        return Suggestions.merge(fullInput, suggestions);
    });
// Sponge End
}

Example 2 with Suggestions

use of com.mojang.brigadier.suggestion.Suggestions in project MinecraftForge by MinecraftForge.

the class ConsoleCommandCompleter method complete.

@Override
public void complete(LineReader reader, ParsedLine line, List<Candidate> candidates) {
    String buffer = line.line();
    boolean prefix;
    if (buffer.isEmpty() || buffer.charAt(0) != '/') {
        buffer = '/' + buffer;
        prefix = false;
    } else {
        prefix = true;
    }
    final String input = buffer;
    // See NetHandlerPlayServer#processTabComplete
    StringReader stringReader = new StringReader(input);
    if (stringReader.canRead() && stringReader.peek() == '/')
        stringReader.skip();
    try {
        ParseResults<CommandSourceStack> results = this.server.getCommands().getDispatcher().parse(stringReader, this.server.createCommandSourceStack());
        Suggestions tabComplete = this.server.getCommands().getDispatcher().getCompletionSuggestions(results).get();
        for (Suggestion suggestion : tabComplete.getList()) {
            String completion = suggestion.getText();
            if (!completion.isEmpty()) {
                boolean hasPrefix = prefix || completion.charAt(0) != '/';
                Candidate candidate = new Candidate(hasPrefix ? completion : completion.substring(1));
                candidates.add(candidate);
            }
        }
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
    } catch (ExecutionException e) {
        logger.error("Failed to tab complete", e);
    }
}

Example 3 with Suggestions

use of com.mojang.brigadier.suggestion.Suggestions in project SpongeCommon by SpongePowered.

the class SpongeCommandDispatcher method parseNodes.

private ParseResults<CommandSourceStack> parseNodes(// Sponge: used in permission checks
final boolean isRoot, // Sponge: needed for handling what we do with defaults.
final boolean isSuggestion, final CommandNode<CommandSourceStack> node, final SpongeStringReader originalReader, final SpongeCommandContextBuilder contextSoFar) {
    final CommandSourceStack source = contextSoFar.getSource();
    // Sponge Start
    Map<CommandNode<CommandSourceStack>, CommandSyntaxException> errors = null;
    List<ParseResults<CommandSourceStack>> potentials = null;
    // Sponge End
    final int cursor = originalReader.getCursor();
    // Sponge Start: get relevant nodes if we're completing
    final Collection<? extends CommandNode<CommandSourceStack>> nodes;
    if (isSuggestion && node instanceof SpongeNode) {
        nodes = ((SpongeNode) node).getRelevantNodesForSuggestions(originalReader);
    } else if (originalReader.canRead()) {
        nodes = node.getRelevantNodes(originalReader);
    } else {
        // Reader cannot read anymore so ONLY nodes with parsers that do not read can be processed
        nodes = node.getChildren().stream().filter(n -> n instanceof SpongeArgumentCommandNode && (((SpongeArgumentCommandNode<?>) n).getParser().doesNotRead())).collect(Collectors.toList());
    }
    for (final CommandNode<CommandSourceStack> child : nodes) {
        final boolean doesNotRead = child instanceof SpongeArgumentCommandNode && ((SpongeArgumentCommandNode<?>) child).getParser().doesNotRead();
        // if (!child.canUse(source)) {
        if (!SpongeNodePermissionCache.canUse(isRoot, this, child, source)) {
            // Sponge End
            continue;
        }
        // Sponge Start
        final SpongeCommandContextBuilder context = contextSoFar.copy();
        final SpongeStringReader reader = new SpongeStringReader(originalReader);
        // Sponge End
        try {
            try {
                child.parse(reader, context);
            } catch (final RuntimeException ex) {
                throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherParseException().createWithContext(reader, ex.getMessage());
            }
            // Sponge Start: if we didn't consume anything we don't want Brig to complain at us.
            if (reader.getCursor() == cursor) {
                // of suggestions.
                if (isSuggestion && !reader.canRead()) {
                    throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherExpectedArgumentSeparator().createWithContext(reader);
                }
                reader.unskipWhitespace();
            } else if (reader.canRead()) {
                // Sponge End
                if (reader.peek() != CommandDispatcher.ARGUMENT_SEPARATOR_CHAR) {
                    throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherExpectedArgumentSeparator().createWithContext(reader);
                }
            }
        } catch (final CommandSyntaxException ex) {
            if (errors == null) {
                errors = new LinkedHashMap<>();
            }
            errors.put(child, ex);
            reader.setCursor(cursor);
            continue;
        }
        context.withCommand(child.getCommand());
        // must let it do so.
        if (this.shouldContinueTraversing(reader, child)) {
            // if (reader.canRead(child.getRedirect() == null ? 2 : 1)) {
            // Sponge End
            reader.skip();
            // Sponge Start: redirect is now in a local variable as we use it a fair bit
            final CommandNode<CommandSourceStack> redirect = child.getRedirect();
            if (redirect != null) {
                // If we've redirected to the root node, we may need to head back to our command
                // manager - so we should check to see if that's going to actually be the case.
                final boolean redirectingToRoot = redirect == this.getRoot();
                final SpongeCommandContextBuilder childContext = new SpongeCommandContextBuilder(this, source, child.getRedirect(), reader.getCursor());
                // For a redirect, we want to ensure all of our currently parsed information is available.
                context.applySpongeElementsTo(childContext, false);
                ParseResults<CommandSourceStack> parse = null;
                if (redirectingToRoot) {
                    // check to see if we can get an element
                    final ArgumentReader.Immutable snapshot = reader.immutable();
                    try {
                        final String commandToAttempt = reader.peekString();
                        final int offset = reader.cursor();
                        if (redirect.getChild(commandToAttempt) == null) {
                            // The redirect fails, so we intercept here, and reroute to our command
                            // manager with the rest of the string and the new context.
                            reader.parseString();
                            final boolean hasMore = reader.canRead();
                            reader.skipWhitespace();
                            final Optional<CommandMapping> optionalMapping = this.commandManager.commandMapping(commandToAttempt);
                            if (optionalMapping.isPresent()) {
                                final CommandMapping mapping = optionalMapping.get();
                                final String remaining = reader.remaining();
                                childContext.withCommand(commandContext -> {
                                    final SpongeCommandContext spongeContext = (SpongeCommandContext) commandContext;
                                    try {
                                        return mapping.registrar().process(spongeContext.cause(), mapping, commandToAttempt, remaining).result();
                                    } catch (final CommandException e) {
                                        throw new SpongeCommandSyntaxException(e, spongeContext);
                                    }
                                });
                                childContext.withNode(new DummyCommandNode(childContext.getCommand()), StringRange.between(offset, reader.totalLength()));
                                childContext.setNonBrigCommand(hasMore ? new String[] { commandToAttempt, remaining } : new String[] { commandToAttempt });
                                reader.setCursor(reader.totalLength());
                                parse = new ParseResults<>(childContext, reader, Collections.emptyMap());
                            } else {
                                // We'll just let this parser fail as normal.
                                reader.setState(snapshot);
                            }
                        }
                    } catch (final ArgumentParseException ignored) {
                        // ignore it, it'll handle it later.
                        reader.setState(snapshot);
                    }
                }
                if (parse == null) {
                    parse = this.parseNodes(redirect instanceof RootCommandNode, isSuggestion, child.getRedirect(), reader, childContext);
                }
                // It worked out, so let's apply it back. We clear and reapply, it's simpler than comparing and conditional adding.
                childContext.applySpongeElementsTo(context, true);
                // Sponge End
                context.withChild(parse.getContext());
                final ParseResults<CommandSourceStack> parse2 = new ParseResults<>(context, parse.getReader(), parse.getExceptions());
                if (doesNotRead && potentials != null) {
                    // If this is a optional or default parameter we only add the redirect as a potential option
                    potentials.add(parse2);
                    continue;
                }
                return parse2;
            } else {
                final ParseResults<CommandSourceStack> parse = this.parseNodes(false, isSuggestion, child, reader, context);
                if (potentials == null) {
                    potentials = new ArrayList<>(1);
                }
                potentials.add(parse);
            }
        } else {
            if (potentials == null) {
                potentials = new ArrayList<>(1);
            }
            potentials.add(new ParseResults<>(context, reader, Collections.emptyMap()));
        }
    }
    if (potentials != null) {
        if (potentials.size() > 1) {
            potentials.sort((a, b) -> {
                if (!a.getReader().canRead() && b.getReader().canRead()) {
                    return -1;
                }
                if (a.getReader().canRead() && !b.getReader().canRead()) {
                    return 1;
                }
                if (a.getExceptions().isEmpty() && !b.getExceptions().isEmpty()) {
                    return -1;
                }
                if (!a.getExceptions().isEmpty() && b.getExceptions().isEmpty()) {
                    return 1;
                }
                // If we get here both potentials parsed everything and there was no exception
                // BUT if parsing stopped at a non-terminal node this will cause an error later
                // see at the end of #execute() where !foundCommand
                // Instead we attempt to sort commands before that happens
                final Command<CommandSourceStack> aCommand = SpongeCommandDispatcher.getCommand(a.getContext());
                final Command<CommandSourceStack> bCommand = SpongeCommandDispatcher.getCommand(b.getContext());
                if (aCommand == null && bCommand != null) {
                    return 1;
                } else if (aCommand != null && bCommand == null) {
                    return -1;
                }
                return 0;
            });
        }
        return potentials.get(0);
    }
    return new ParseResults<>(contextSoFar, originalReader, errors == null ? Collections.emptyMap() : errors);
}

Example 4 with Suggestions

use of com.mojang.brigadier.suggestion.Suggestions in project SpongeCommon by SpongePowered.

the class SpongeParameterizedCommand method complete.

@Override
public List<CommandCompletion> complete(@NonNull final CommandCause cause, final ArgumentReader.@NonNull Mutable arguments) {
    final SpongeCommandDispatcher dispatcher = this.getCachedDispatcher();
    final String input = arguments.remaining();
    final ParseResults<CommandSourceStack> parseResults = dispatcher.parse((StringReader) arguments, (CommandSourceStack) cause);
    final Suggestions suggestions = dispatcher.getCompletionSuggestions(parseResults).join();
    return suggestions.getList().stream().map(SpongeCommandCompletion::from).collect(Collectors.toList());
}

Example 5 with Suggestions

use of com.mojang.brigadier.suggestion.Suggestions in project SpongeCommon by SpongePowered.

the class BrigadierJLineCompleter method complete.

@Override
public void complete(LineReader reader, ParsedLine line, List<Candidate> candidates) {
    final CommandDispatcher<S> dispatcher = this.dispatcherProvider.get();
    if (dispatcher == null) {
        return;
    }
    final String input = line.line();
    final ParseResults<S> parseResult = dispatcher.parse(input, this.commandSourceProvider.get());
    final CompletableFuture<Suggestions> suggestions = dispatcher.getCompletionSuggestions(parseResult, line.cursor());
    try {
        final Suggestions result = suggestions.get();
        for (final Suggestion completion : result.getList()) {
            if (completion.getText().isEmpty()) {
                continue;
            }
            candidates.add(BrigadierJLineCompleter.candidateFromSuggestion(parseResult, completion));
        }
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
    } catch (ExecutionException e) {
        SpongeCommon.logger().error("Failed to tab complete", e);
    }
}