lkishalmi commented on code in PR #4503: URL: https://github.com/apache/netbeans/pull/4503#discussion_r946142946
########## ide/languages.toml/src/org/netbeans/modules/languages/toml/TomlTypedTextInterceptor.java: ########## @@ -0,0 +1,177 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.netbeans.modules.languages.toml; + +import java.util.EnumSet; +import java.util.Set; +import javax.swing.text.BadLocationException; +import javax.swing.text.Document; +import org.netbeans.api.editor.document.LineDocumentUtils; +import org.netbeans.api.editor.mimelookup.MimePath; +import org.netbeans.api.editor.mimelookup.MimeRegistration; +import org.netbeans.api.lexer.TokenHierarchy; +import org.netbeans.api.lexer.TokenId; +import org.netbeans.api.lexer.TokenSequence; +import org.netbeans.editor.BaseDocument; +import org.netbeans.spi.editor.typinghooks.TypedTextInterceptor; + +/** + * + * @author lkishalmi + */ +public class TomlTypedTextInterceptor implements TypedTextInterceptor { + + private int caretPosition = -1; + + @Override + public boolean beforeInsert(Context context) throws BadLocationException { + return false; + } + + @Override + public void insert(MutableContext context) throws BadLocationException { + String txt = context.getText(); + if (context.getReplacedText().length() == 0) { + switch (txt) { + case "{": + context.setText("{}", 1); + break; + case "}": + if ("}".equals(textAfter(context, 1))) { + skipNext(context); + } + break; + case "[": + context.setText("[]", 1); + break; + case "]": + if ("]".equals(textAfter(context, 1))){ + skipNext(context); + } + break; + case " ": + String b = textBefore(context, 1); + String a = textAfter(context, 1); + if ( ("{".equals(b) && "}".equals(a)) + || ("[".equals(b) && "]".equals(a))) { + context.setText(" ", 1); + } + break; + case "\"": + if (!isInMultilineString(context)) { + if (!"\"\"".equals(textBefore(context, 2))) { + if ("\"".equals(textAfter(context, 1))){ + skipNext(context); + } else { + int quotes = quotesInLine(context, '"'); + if (quotes % 2 == 0) { + context.setText("\"\"", 1); + } + } + } + } + break; + case "'": + if (!isInMultilineString(context)) { + if (!"''".equals(textBefore(context, 2))) { + if ("'".equals(textAfter(context, 1))){ + skipNext(context); + } else { + int quotes = quotesInLine(context, '\''); + if (quotes % 2 == 0) { + context.setText("''", 1); + } + } + } + } + break; + } + } else if (("\"".equals(txt) || "'".equals(txt)) && !isInMultilineString(context)) { + context.setText(txt + context.getReplacedText() + txt, context.getReplacedText().length() + 2); + } + } + + private void skipNext(MutableContext context) { + context.setText("", 0); + caretPosition = context.getOffset() + 1; + } + + private static String textAfter(Context context, int length) throws BadLocationException { + int next = Math.min(length, context.getDocument().getLength() - context.getOffset()); + return context.getDocument().getText(context.getOffset(), next); + } + + private static String textBefore(Context context, int lenght) throws BadLocationException { + int pre = Math.min(lenght, context.getOffset()); + return context.getDocument().getText(context.getOffset() - pre, pre); + } + + private static final Set<? extends TokenId> STRING_OR_WS = EnumSet.of(TomlTokenId.STRING, TomlTokenId.WHITESPACE); + + private static boolean isInMultilineString(Context context){ + TokenHierarchy<Document> th = TokenHierarchy.get(context.getDocument()); + TokenSequence<?> ts = th.tokenSequence(); + ts.move(context.getOffset()); + ts.movePrevious(); + while ((ts.token() != null) && STRING_OR_WS.contains(ts.token().id())) { + ts.movePrevious(); + } + return (ts.token() != null) && TomlTokenId.ML_STRING_START == ts.token().id(); + } + + private static int quotesInLine(Context context, char quote) throws BadLocationException { + BaseDocument doc = (BaseDocument) context.getDocument(); Review Comment: Good tip thanks! -- This is an automated message from the Apache Git Service. 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