--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.jdeps/share/classes/com/sun/tools/jdeprscan/CSV.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.tools.jdeprscan;
+
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Utility class for manipulating comma-separated-value (CSV) data.
+ */
+public class CSV {
+ static String quote(String input) {
+ String result;
+ boolean needQuote = input.contains(",");
+
+ if (input.contains("\"")) {
+ needQuote = true;
+ result = input.replace("\"", "\"\"");
+ } else {
+ result = input;
+ }
+
+ if (needQuote) {
+ return "\"" + result + "\"";
+ } else {
+ return result;
+ }
+ }
+
+ /**
+ * Writes the objects' string representations to the output as a line of CSV.
+ * The objects are converted to String, quoted if necessary, joined with commas,
+ * and are written to the output followed by the line separator string.
+ *
+ * @param out the output destination
+ * @param objs the objects to write
+ */
+ public static void write(PrintStream out, Object... objs) {
+ out.println(Arrays.stream(objs)
+ .map(Object::toString)
+ .map(CSV::quote)
+ .collect(Collectors.joining(",")));
+ }
+
+ /**
+ * The CSV parser state.
+ */
+ enum State {
+ START_FIELD, // the start of a field
+ IN_FIELD, // within an unquoted field
+ IN_QFIELD, // within a quoted field
+ END_QFIELD // after the end of a quoted field
+ }
+
+ /**
+ * Splits an input line into a list of strings, handling quoting.
+ *
+ * @param input the input line
+ * @return the resulting list of strings
+ */
+ public static List<String> split(String input) {
+ List<String> result = new ArrayList<>();
+ StringBuilder cur = new StringBuilder();
+ State state = State.START_FIELD;
+
+ for (int i = 0; i < input.length(); i++) {
+ char ch = input.charAt(i);
+ switch (ch) {
+ case ',':
+ switch (state) {
+ case IN_QFIELD:
+ cur.append(',');
+ break;
+ default:
+ result.add(cur.toString());
+ cur.setLength(0);
+ state = State.START_FIELD;
+ break;
+ }
+ break;
+ case '"':
+ switch (state) {
+ case START_FIELD:
+ state = State.IN_QFIELD;
+ break;
+ case IN_QFIELD:
+ state = State.END_QFIELD;
+ break;
+ case IN_FIELD:
+ throw new CSVParseException("unexpected quote", input, i);
+ case END_QFIELD:
+ cur.append('"');
+ state = State.IN_QFIELD;
+ break;
+ }
+ break;
+ default:
+ switch (state) {
+ case START_FIELD:
+ state = State.IN_FIELD;
+ break;
+ case IN_FIELD:
+ case IN_QFIELD:
+ break;
+ case END_QFIELD:
+ throw new CSVParseException("extra character after quoted string",
+ input, i);
+ }
+ cur.append(ch);
+ break;
+ }
+ }
+
+ if (state == State.IN_QFIELD) {
+ throw new CSVParseException("unclosed quote", input, input.length());
+ }
+
+ result.add(cur.toString());
+ return result;
+ }
+}