| /******************************************************************************* |
| * Copyright (c) 2007, 2015 David Green and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * David Green - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.mylyn.wikitext.textile.internal.block; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.mylyn.wikitext.parser.DocumentBuilder.BlockType; |
| import org.eclipse.mylyn.wikitext.parser.TableAttributes; |
| import org.eclipse.mylyn.wikitext.parser.TableCellAttributes; |
| import org.eclipse.mylyn.wikitext.parser.TableRowAttributes; |
| import org.eclipse.mylyn.wikitext.parser.markup.Block; |
| import org.eclipse.mylyn.wikitext.textile.internal.Textile; |
| |
| import com.google.common.base.CharMatcher; |
| |
| /** |
| * Table block, matches blocks that start with <code>table. </code> or those that start with a table row. |
| * |
| * @author David Green |
| */ |
| public class TableBlock extends Block { |
| |
| // NOTE: no need for whitespace after the dot on 'table.' |
| static final Pattern startPattern = Pattern.compile("(table" + Textile.REGEX_BLOCK_ATTRIBUTES //$NON-NLS-1$ |
| + "\\.\\s*)|(\\|(.*)?(\\|\\s*$))"); //$NON-NLS-1$ |
| |
| static final Pattern rowAttributesPattern = Pattern.compile(Textile.REGEX_BLOCK_ATTRIBUTES + "\\.\\s*.*"); //$NON-NLS-1$ |
| |
| static final Pattern TABLE_ROW_PATTERN = Pattern.compile("\\|(?:\\\\(\\d+))?(?:/(\\d+))?((?:\\<\\>)|\\<|\\>|\\^)?" //$NON-NLS-1$ |
| + Textile.REGEX_ATTRIBUTES + "(_|\\|)?\\.?\\s?([^\\|]*)(\\|\\|?\\s*$)?"); //$NON-NLS-1$ |
| |
| private int blockLineCount = 0; |
| |
| private Matcher matcher; |
| |
| public TableBlock() { |
| } |
| |
| @Override |
| public int processLineContent(String line, int offset) { |
| if (blockLineCount == 0) { |
| TableAttributes attributes = new TableAttributes(); |
| if (matcher.group(1) != null) { |
| // 0-offset matches may start with the "table. " prefix. |
| Textile.configureAttributes(attributes, matcher, 2, true); |
| offset = line.length(); |
| } |
| builder.beginBlock(BlockType.TABLE, attributes); |
| } else if (markupLanguage.isEmptyLine(line)) { |
| setClosed(true); |
| return 0; |
| } |
| ++blockLineCount; |
| |
| if (offset == line.length()) { |
| return -1; |
| } |
| |
| String textileLine = offset == 0 ? line : line.substring(offset); |
| Matcher rowMatcher = TABLE_ROW_PATTERN.matcher(textileLine); |
| if (!rowMatcher.find()) { |
| setClosed(true); |
| return 0; |
| } |
| |
| { |
| TableRowAttributes rowAttributes = new TableRowAttributes(); |
| int rowStart = rowMatcher.start(); |
| if (rowStart > 0) { |
| // if the row content starts somewhere in the line then it's likely |
| // that we have some row-level attributes |
| Matcher rowAttributesMatcher = rowAttributesPattern.matcher(textileLine); |
| if (rowAttributesMatcher.matches()) { |
| Textile.configureAttributes(rowAttributes, rowAttributesMatcher, 1, true); |
| } |
| } |
| builder.beginBlock(BlockType.TABLE_ROW, rowAttributes); |
| } |
| |
| do { |
| int start = rowMatcher.start(); |
| if (start == textileLine.length() - 1) { |
| break; |
| } |
| |
| String colSpan = rowMatcher.group(1); |
| String rowSpan = rowMatcher.group(2); |
| String alignment = rowMatcher.group(3); |
| String headerIndicator = rowMatcher.group(8); |
| String text = rowMatcher.group(9); |
| int textLineOffset = rowMatcher.start(9); |
| |
| boolean header = headerIndicator != null && ("_".equals(headerIndicator) || "|".equals(headerIndicator)); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| String textAlign = null; |
| if (alignment != null) { |
| if (alignment.equals("<>")) { //$NON-NLS-1$ |
| textAlign = "text-align: center;"; //$NON-NLS-1$ |
| } else if (alignment.equals(">")) { //$NON-NLS-1$ |
| textAlign = "text-align: right;"; //$NON-NLS-1$ |
| } else if (alignment.equals("<")) { //$NON-NLS-1$ |
| textAlign = "text-align: left;"; //$NON-NLS-1$ |
| } else if (alignment.equals("^")) { //$NON-NLS-1$ |
| textAlign = "vertical-align: top;"; //$NON-NLS-1$ |
| } |
| } |
| TableCellAttributes attributes = new TableCellAttributes(); |
| attributes.setCssStyle(textAlign); |
| attributes.setRowspan(rowSpan); |
| attributes.setColspan(colSpan); |
| Textile.configureAttributes(attributes, rowMatcher, 4, false); |
| |
| state.setLineCharacterOffset(start); |
| builder.beginBlock(header ? BlockType.TABLE_CELL_HEADER : BlockType.TABLE_CELL_NORMAL, attributes); |
| |
| markupLanguage.emitMarkupLine(getParser(), state, textLineOffset, |
| CharMatcher.WHITESPACE.trimTrailingFrom(text), 0); |
| |
| builder.endBlock(); // table cell |
| } while (rowMatcher.find()); |
| |
| builder.endBlock(); // table row |
| |
| return -1; |
| } |
| |
| @Override |
| public boolean canStart(String line, int lineOffset) { |
| blockLineCount = 0; |
| if (lineOffset == 0) { |
| matcher = startPattern.matcher(line); |
| return matcher.matches(); |
| } else { |
| matcher = null; |
| return false; |
| } |
| } |
| |
| @Override |
| public void setClosed(boolean closed) { |
| if (closed && !isClosed()) { |
| builder.endBlock(); |
| } |
| super.setClosed(closed); |
| } |
| |
| } |