Add ASCII Table support

Fixes #136

spring-shell-samples/src/main/java/org/springframework/shell/samples/standard/TableCommands.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2017 the original author or authors.
+ *
+ * Licensed 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.springframework.shell.samples.standard;
+
+import org.springframework.shell.standard.ShellComponent;
+import org.springframework.shell.standard.ShellMethod;
+import org.springframework.shell.table.*;
+
+import java.util.Random;
+
+@ShellComponent
+public class TableCommands {
+
+	private static final String TEXT = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt " +
+			"ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco " +
+			"laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in " +
+			"voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat " +
+			"non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.";
+
+	@ShellMethod("Showcase Table rendering")
+	public Table table() {
+		String[][] data = new String[3][3];
+		TableModel model = new ArrayTableModel(data);
+		TableBuilder tableBuilder = new TableBuilder(model);
+
+		Random r = new Random();
+		for (int i = 0; i < 3; i++) {
+			for (int j = 0; j < 3; j++) {
+				data[i][j] = TEXT.substring(0, TEXT.length() / 2 + r.nextInt(TEXT.length() / 2));
+				tableBuilder.on(at(i, j)).addAligner(SimpleHorizontalAligner.values()[j]);
+				tableBuilder.on(at(i, j)).addAligner(SimpleVerticalAligner.values()[i]);
+			}
+		}
+
+		return tableBuilder.addFullBorder(BorderStyle.fancy_light).build();
+	}
+
+	public static CellMatcher at(final int theRow, final int col) {
+		return new CellMatcher() {
+			@Override
+			public boolean matches(int row, int column, TableModel model) {
+				return row == theRow && column == col;
+			}
+		};
+	}
+}