msgshow (JavaMail example) [1003228]

!752
!1003225 // JavaMail

import javax.mail.*;
import javax.mail.event.*;
import javax.mail.internet.*;

/*
 * Demo app that exercises the Message interfaces.
 * Show information about and contents of messages.
 *
 * @author John Mani
 * @author Bill Shannon
 */

    static String protocol;
    static String host = null;
    static String user = null;
    static String password = null;
    static String mbox = null;
    static String url = null;
    static int port = -1;
    static boolean verbose = false;
    static boolean debug = false;
    static boolean showStructure = false;
    static boolean showMessage = false;
    static boolean showAlert = false;
    static boolean saveAttachments = false;
    static int attnum = 1;

    public static void main(String argv[]) {
	int optind;
	InputStream msgStream = System.in;

	for (optind = 0; optind < argv.length; optind++) {
	    if (argv[optind].equals("-T")) {
		protocol = argv[++optind];
	    } else if (argv[optind].equals("-H")) {
		host = argv[++optind];
	    } else if (argv[optind].equals("-U")) {
		user = argv[++optind];
	    } else if (argv[optind].equals("-P")) {
		password = argv[++optind];
	    } else if (argv[optind].equals("-v")) {
		verbose = true;
	    } else if (argv[optind].equals("-D")) {
		debug = true;
	    } else if (argv[optind].equals("-f")) {
		mbox = argv[++optind];
	    } else if (argv[optind].equals("-L")) {
		url = argv[++optind];
	    } else if (argv[optind].equals("-p")) {
		port = Integer.parseInt(argv[++optind]);
	    } else if (argv[optind].equals("-s")) {
		showStructure = true;
	    } else if (argv[optind].equals("-S")) {
		saveAttachments = true;
	    } else if (argv[optind].equals("-m")) {
		showMessage = true;
	    } else if (argv[optind].equals("-a")) {
		showAlert = true;
	    } else if (argv[optind].equals("--")) {
		optind++;
		break;
	    } else if (argv[optind].startsWith("-")) {
		System.out.println(
"Usage: msgshow [-L url] [-T protocol] [-H host] [-p port] [-U user]");
		System.out.println(
"\t[-P password] [-f mailbox] [msgnum ...] [-v] [-D] [-s] [-S] [-a]");
		System.out.println(
"or     msgshow -m [-v] [-D] [-s] [-S] [-f msg-file]");
		System.exit(1);
	    } else {
		break;
	    }
	}

	try {
	    // Get a Properties object
	    Properties props = System.getProperties();

	    // Get a Session object
	    Session session = Session.getInstance(props, null);
	    session.setDebug(debug);

	    if (showMessage) {
		MimeMessage msg;
		if (mbox != null)
		    msg = new MimeMessage(session,
			new BufferedInputStream(new FileInputStream(mbox)));
		else
		    msg = new MimeMessage(session, msgStream);
		dumpPart(msg);
		System.exit(0);
	    }

	    // Get a Store object
	    Store store = null;
	    if (url != null) {
		URLName urln = new URLName(url);
		store = session.getStore(urln);
		if (showAlert) {
		    store.addStoreListener(new StoreListener() {
			public void notification(StoreEvent e) {
			    String s;
			    if (e.getMessageType() == StoreEvent.ALERT)
				s = "ALERT: ";
			    else
				s = "NOTICE: ";
			    System.out.println(s + e.getMessage());
			}
		    });
		}
		store.connect();
	    } else {
		if (protocol != null)		
		    store = session.getStore(protocol);
		else
		    store = session.getStore();

		// Connect
		if (host != null || user != null || password != null)
		    store.connect(host, port, user, password);
		else
		    store.connect();
	    }
	    

	    // Open the Folder

	    Folder folder = store.getDefaultFolder();
	    if (folder == null) {
		System.out.println("No default folder");
		System.exit(1);
	    }

	    if (mbox == null)
		mbox = "INBOX";
	    folder = folder.getFolder(mbox);
	    if (folder == null) {
		System.out.println("Invalid folder");
		System.exit(1);
	    }

	    // try to open read/write and if that fails try read-only
	    try {
		folder.open(Folder.READ_WRITE);
	    } catch (MessagingException ex) {
		folder.open(Folder.READ_ONLY);
	    }
	    int totalMessages = folder.getMessageCount();

	    if (totalMessages == 0) {
		System.out.println("Empty folder");
		folder.close(false);
		store.close();
		System.exit(1);
	    }

	    if (verbose) {
		int newMessages = folder.getNewMessageCount();
		System.out.println("Total messages = " + totalMessages);
		System.out.println("New messages = " + newMessages);
		System.out.println("-------------------------------");
	    }

	    if (optind >= argv.length) {
		// Attributes & Flags for all messages ..
		Message[] msgs = folder.getMessages();

		// Use a suitable FetchProfile
		FetchProfile fp = new FetchProfile();
		fp.add(FetchProfile.Item.ENVELOPE);
		fp.add(FetchProfile.Item.FLAGS);
		fp.add("X-Mailer");
		folder.fetch(msgs, fp);

		for (int i = 0; i < msgs.length; i++) {
		    System.out.println("--------------------------");
		    System.out.println("MESSAGE #" + (i + 1) + ":");
		    dumpEnvelope(msgs[i]);
		    // dumpPart(msgs[i]);
		}
	    } else {
		while (optind < argv.length) {
		    int msgnum = Integer.parseInt(argv[optind++]);
		    System.out.println("Getting message number: " + msgnum);
		    Message m = null;
		    
		    try {
			m = folder.getMessage(msgnum);
			dumpPart(m);
		    } catch (IndexOutOfBoundsException iex) {
			System.out.println("Message number out of range");
		    }
		}
	    }

	    folder.close(false);
	    store.close();
	} catch (Exception ex) {
	    System.out.println("Oops, got exception! " + ex.getMessage());
	    ex.printStackTrace();
	    System.exit(1);
	}
	System.exit(0);
    }

    public static void dumpPart(Part p) throws Exception {
	if (p instanceof Message)
	    dumpEnvelope((Message)p);

	/** Dump input stream .. 

	InputStream is = p.getInputStream();
	// If "is" is not already buffered, wrap a BufferedInputStream
	// around it.
	if (!(is instanceof BufferedInputStream))
	    is = new BufferedInputStream(is);
	int c;
	while ((c = is.read()) != -1)
	    System.out.write(c);

	**/

	String ct = p.getContentType();
	try {
	    pr("CONTENT-TYPE: " + (new ContentType(ct)).toString());
	} catch (ParseException pex) {
	    pr("BAD CONTENT-TYPE: " + ct);
	}
	String filename = p.getFileName();
	if (filename != null)
	    pr("FILENAME: " + filename);

	/*
	 * Using isMimeType to determine the content type avoids
	 * fetching the actual content data until we need it.
	 */
	if (p.isMimeType("text/plain")) {
	    pr("This is plain text");
	    pr("---------------------------");
	    if (!showStructure && !saveAttachments)
		System.out.println((String)p.getContent());
	} else if (p.isMimeType("multipart/*")) {
	    pr("This is a Multipart");
	    pr("---------------------------");
	    Multipart mp = (Multipart)p.getContent();
	    level++;
	    int count = mp.getCount();
	    for (int i = 0; i < count; i++)
		dumpPart(mp.getBodyPart(i));
	    level--;
	} else if (p.isMimeType("message/rfc822")) {
	    pr("This is a Nested Message");
	    pr("---------------------------");
	    level++;
	    dumpPart((Part)p.getContent());
	    level--;
	} else {
	    if (!showStructure && !saveAttachments) {
		/*
		 * If we actually want to see the data, and it's not a
		 * MIME type we know, fetch it and check its Java type.
		 */
		Object o = p.getContent();
		if (o instanceof String) {
		    pr("This is a string");
		    pr("---------------------------");
		    System.out.println((String)o);
		} else if (o instanceof InputStream) {
		    pr("This is just an input stream");
		    pr("---------------------------");
		    InputStream is = (InputStream)o;
		    int c;
		    while ((c = is.read()) != -1)
			System.out.write(c);
		} else {
		    pr("This is an unknown type");
		    pr("---------------------------");
		    pr(o.toString());
		}
	    } else {
		// just a separator
		pr("---------------------------");
	    }
	}

	/*
	 * If we're saving attachments, write out anything that
	 * looks like an attachment into an appropriately named
	 * file.  Don't overwrite existing files to prevent
	 * mistakes.
	 */
	if (saveAttachments && level != 0 && p instanceof MimeBodyPart &&
		!p.isMimeType("multipart/*")) {
	    String disp = p.getDisposition();
	    // many mailers don't include a Content-Disposition
	    if (disp == null || disp.equalsIgnoreCase(Part.ATTACHMENT)) {
		if (filename == null)
		    filename = "Attachment" + attnum++;
		pr("Saving attachment to file " + filename);
		try {
		    File f = new File(filename);
		    if (f.exists())
			// XXX - could try a series of names
			throw new IOException("file exists");
		    ((MimeBodyPart)p).saveFile(f);
		} catch (IOException ex) {
		    pr("Failed to save attachment: " + ex);
		}
		pr("---------------------------");
	    }
	}
    }

    public static void dumpEnvelope(Message m) throws Exception {
	pr("This is the message envelope");
	pr("---------------------------");
	Address[] a;
	// FROM 
	if ((a = m.getFrom()) != null) {
	    for (int j = 0; j < a.length; j++)
		pr("FROM: " + a[j].toString());
	}

	// REPLY TO
	if ((a = m.getReplyTo()) != null) {
	    for (int j = 0; j < a.length; j++)
		pr("REPLY TO: " + a[j].toString());
	}

	// TO
	if ((a = m.getRecipients(Message.RecipientType.TO)) != null) {
	    for (int j = 0; j < a.length; j++) {
		pr("TO: " + a[j].toString());
		InternetAddress ia = (InternetAddress)a[j];
		if (ia.isGroup()) {
		    InternetAddress[] aa = ia.getGroup(false);
		    for (int k = 0; k < aa.length; k++)
			pr("  GROUP: " + aa[k].toString());
		}
	    }
	}

	// SUBJECT
	pr("SUBJECT: " + m.getSubject());

	// DATE
	Date d = m.getSentDate();
	pr("SendDate: " +
	    (d != null ? d.toString() : "UNKNOWN"));

	// FLAGS
	Flags flags = m.getFlags();
	StringBuffer sb = new StringBuffer();
	Flags.Flag[] sf = flags.getSystemFlags(); // get the system flags

	boolean first = true;
	for (int i = 0; i < sf.length; i++) {
	    String s;
	    Flags.Flag f = sf[i];
	    if (f == Flags.Flag.ANSWERED)
		s = "\\Answered";
	    else if (f == Flags.Flag.DELETED)
		s = "\\Deleted";
	    else if (f == Flags.Flag.DRAFT)
		s = "\\Draft";
	    else if (f == Flags.Flag.FLAGGED)
		s = "\\Flagged";
	    else if (f == Flags.Flag.RECENT)
		s = "\\Recent";
	    else if (f == Flags.Flag.SEEN)
		s = "\\Seen";
	    else
		continue;	// skip it
	    if (first)
		first = false;
	    else
		sb.append(' ');
	    sb.append(s);
	}

	String[] uf = flags.getUserFlags(); // get the user flag strings
	for (int i = 0; i < uf.length; i++) {
	    if (first)
		first = false;
	    else
		sb.append(' ');
	    sb.append(uf[i]);
	}
	pr("FLAGS: " + sb.toString());

	// X-MAILER
	String[] hdrs = m.getHeader("X-Mailer");
	if (hdrs != null)
	    pr("X-Mailer: " + hdrs[0]);
	else
	    pr("X-Mailer NOT available");
    }

    static String indentStr = "                                               ";
    static int level = 0;

    /**
     * Print a, possibly indented, string.
     */
    public static void pr(String s) {
	if (showStructure)
	    System.out.print(indentStr.substring(0, level * 2));
	System.out.println(s);
    }

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Snippet ID:	#1003228
Snippet name:	msgshow (JavaMail example)
Eternal ID of this version:	#1003228/1
Text MD5:	ef569ed35fbf1986bd96729df0e714fa
Transpilation MD5:	a7329e71df9444c9429be723f8b25882
Author:	stefan
Category:	javax
Type:	JavaX source code
Public (visible to everyone):	Yes
Archived (hidden from active list):	No
Created/modified:	2016-06-03 04:28:15
Source code size:	11384 bytes / 412 lines
Pitched / IR pitched:	No / No
Views / Downloads:	613 / 608
Referenced in:	[show references]

< > BotCompany Repo | #1003228 // msgshow (JavaMail example)

JavaX source code [tags: use-pretranspiled] - run with: x30.jar

1	!752
2	!1003225 // JavaMail
3
4	import javax.mail.*;
5	import javax.mail.event.*;
6	import javax.mail.internet.*;
7
8	/*
9	* Demo app that exercises the Message interfaces.
10	* Show information about and contents of messages.
11	*
12	* @author John Mani
13	* @author Bill Shannon
14	*/
15
16	static String protocol;
17	static String host = null;
18	static String user = null;
19	static String password = null;
20	static String mbox = null;
21	static String url = null;
22	static int port = -1;
23	static boolean verbose = false;
24	static boolean debug = false;
25	static boolean showStructure = false;
26	static boolean showMessage = false;
27	static boolean showAlert = false;
28	static boolean saveAttachments = false;
29	static int attnum = 1;
30
31	public static void main(String argv[]) {
32	int optind;
33	InputStream msgStream = System.in;
34
35	for (optind = 0; optind < argv.length; optind++) {
36	if (argv[optind].equals("-T")) {
37	protocol = argv[++optind];
38	} else if (argv[optind].equals("-H")) {
39	host = argv[++optind];
40	} else if (argv[optind].equals("-U")) {
41	user = argv[++optind];
42	} else if (argv[optind].equals("-P")) {
43	password = argv[++optind];
44	} else if (argv[optind].equals("-v")) {
45	verbose = true;
46	} else if (argv[optind].equals("-D")) {
47	debug = true;
48	} else if (argv[optind].equals("-f")) {
49	mbox = argv[++optind];
50	} else if (argv[optind].equals("-L")) {
51	url = argv[++optind];
52	} else if (argv[optind].equals("-p")) {
53	port = Integer.parseInt(argv[++optind]);
54	} else if (argv[optind].equals("-s")) {
55	showStructure = true;
56	} else if (argv[optind].equals("-S")) {
57	saveAttachments = true;
58	} else if (argv[optind].equals("-m")) {
59	showMessage = true;
60	} else if (argv[optind].equals("-a")) {
61	showAlert = true;
62	} else if (argv[optind].equals("--")) {
63	optind++;
64	break;
65	} else if (argv[optind].startsWith("-")) {
66	System.out.println(
67	"Usage: msgshow [-L url] [-T protocol] [-H host] [-p port] [-U user]");
68	System.out.println(
69	"\t[-P password] [-f mailbox] [msgnum ...] [-v] [-D] [-s] [-S] [-a]");
70	System.out.println(
71	"or msgshow -m [-v] [-D] [-s] [-S] [-f msg-file]");
72	System.exit(1);
73	} else {
74	break;
75	}
76	}
77
78	try {
79	// Get a Properties object
80	Properties props = System.getProperties();
81
82	// Get a Session object
83	Session session = Session.getInstance(props, null);
84	session.setDebug(debug);
85
86	if (showMessage) {
87	MimeMessage msg;
88	if (mbox != null)
89	msg = new MimeMessage(session,
90	new BufferedInputStream(new FileInputStream(mbox)));
91	else
92	msg = new MimeMessage(session, msgStream);
93	dumpPart(msg);
94	System.exit(0);
95	}
96
97	// Get a Store object
98	Store store = null;
99	if (url != null) {
100	URLName urln = new URLName(url);
101	store = session.getStore(urln);
102	if (showAlert) {
103	store.addStoreListener(new StoreListener() {
104	public void notification(StoreEvent e) {
105	String s;
106	if (e.getMessageType() == StoreEvent.ALERT)
107	s = "ALERT: ";
108	else
109	s = "NOTICE: ";
110	System.out.println(s + e.getMessage());
111	}
112	});
113	}
114	store.connect();
115	} else {
116	if (protocol != null)
117	store = session.getStore(protocol);
118	else
119	store = session.getStore();
120
121	// Connect
122	if (host != null \|\| user != null \|\| password != null)
123	store.connect(host, port, user, password);
124	else
125	store.connect();
126	}
127
128
129	// Open the Folder
130
131	Folder folder = store.getDefaultFolder();
132	if (folder == null) {
133	System.out.println("No default folder");
134	System.exit(1);
135	}
136
137	if (mbox == null)
138	mbox = "INBOX";
139	folder = folder.getFolder(mbox);
140	if (folder == null) {
141	System.out.println("Invalid folder");
142	System.exit(1);
143	}
144
145	// try to open read/write and if that fails try read-only
146	try {
147	folder.open(Folder.READ_WRITE);
148	} catch (MessagingException ex) {
149	folder.open(Folder.READ_ONLY);
150	}
151	int totalMessages = folder.getMessageCount();
152
153	if (totalMessages == 0) {
154	System.out.println("Empty folder");
155	folder.close(false);
156	store.close();
157	System.exit(1);
158	}
159
160	if (verbose) {
161	int newMessages = folder.getNewMessageCount();
162	System.out.println("Total messages = " + totalMessages);
163	System.out.println("New messages = " + newMessages);
164	System.out.println("-------------------------------");
165	}
166
167	if (optind >= argv.length) {
168	// Attributes & Flags for all messages ..
169	Message[] msgs = folder.getMessages();
170
171	// Use a suitable FetchProfile
172	FetchProfile fp = new FetchProfile();
173	fp.add(FetchProfile.Item.ENVELOPE);
174	fp.add(FetchProfile.Item.FLAGS);
175	fp.add("X-Mailer");
176	folder.fetch(msgs, fp);
177
178	for (int i = 0; i < msgs.length; i++) {
179	System.out.println("--------------------------");
180	System.out.println("MESSAGE #" + (i + 1) + ":");
181	dumpEnvelope(msgs[i]);
182	// dumpPart(msgs[i]);
183	}
184	} else {
185	while (optind < argv.length) {
186	int msgnum = Integer.parseInt(argv[optind++]);
187	System.out.println("Getting message number: " + msgnum);
188	Message m = null;
189
190	try {
191	m = folder.getMessage(msgnum);
192	dumpPart(m);
193	} catch (IndexOutOfBoundsException iex) {
194	System.out.println("Message number out of range");
195	}
196	}
197	}
198
199	folder.close(false);
200	store.close();
201	} catch (Exception ex) {
202	System.out.println("Oops, got exception! " + ex.getMessage());
203	ex.printStackTrace();
204	System.exit(1);
205	}
206	System.exit(0);
207	}
208
209	public static void dumpPart(Part p) throws Exception {
210	if (p instanceof Message)
211	dumpEnvelope((Message)p);
212
213	/** Dump input stream ..
214
215	InputStream is = p.getInputStream();
216	// If "is" is not already buffered, wrap a BufferedInputStream
217	// around it.
218	if (!(is instanceof BufferedInputStream))
219	is = new BufferedInputStream(is);
220	int c;
221	while ((c = is.read()) != -1)
222	System.out.write(c);
223
224	**/
225
226	String ct = p.getContentType();
227	try {
228	pr("CONTENT-TYPE: " + (new ContentType(ct)).toString());
229	} catch (ParseException pex) {
230	pr("BAD CONTENT-TYPE: " + ct);
231	}
232	String filename = p.getFileName();
233	if (filename != null)
234	pr("FILENAME: " + filename);
235
236	/*
237	* Using isMimeType to determine the content type avoids
238	* fetching the actual content data until we need it.
239	*/
240	if (p.isMimeType("text/plain")) {
241	pr("This is plain text");
242	pr("---------------------------");
243	if (!showStructure && !saveAttachments)
244	System.out.println((String)p.getContent());
245	} else if (p.isMimeType("multipart/*")) {
246	pr("This is a Multipart");
247	pr("---------------------------");
248	Multipart mp = (Multipart)p.getContent();
249	level++;
250	int count = mp.getCount();
251	for (int i = 0; i < count; i++)
252	dumpPart(mp.getBodyPart(i));
253	level--;
254	} else if (p.isMimeType("message/rfc822")) {
255	pr("This is a Nested Message");
256	pr("---------------------------");
257	level++;
258	dumpPart((Part)p.getContent());
259	level--;
260	} else {
261	if (!showStructure && !saveAttachments) {
262	/*
263	* If we actually want to see the data, and it's not a
264	* MIME type we know, fetch it and check its Java type.
265	*/
266	Object o = p.getContent();
267	if (o instanceof String) {
268	pr("This is a string");
269	pr("---------------------------");
270	System.out.println((String)o);
271	} else if (o instanceof InputStream) {
272	pr("This is just an input stream");
273	pr("---------------------------");
274	InputStream is = (InputStream)o;
275	int c;
276	while ((c = is.read()) != -1)
277	System.out.write(c);
278	} else {
279	pr("This is an unknown type");
280	pr("---------------------------");
281	pr(o.toString());
282	}
283	} else {
284	// just a separator
285	pr("---------------------------");
286	}
287	}
288
289	/*
290	* If we're saving attachments, write out anything that
291	* looks like an attachment into an appropriately named
292	* file. Don't overwrite existing files to prevent
293	* mistakes.
294	*/
295	if (saveAttachments && level != 0 && p instanceof MimeBodyPart &&
296	!p.isMimeType("multipart/*")) {
297	String disp = p.getDisposition();
298	// many mailers don't include a Content-Disposition
299	if (disp == null \|\| disp.equalsIgnoreCase(Part.ATTACHMENT)) {
300	if (filename == null)
301	filename = "Attachment" + attnum++;
302	pr("Saving attachment to file " + filename);
303	try {
304	File f = new File(filename);
305	if (f.exists())
306	// XXX - could try a series of names
307	throw new IOException("file exists");
308	((MimeBodyPart)p).saveFile(f);
309	} catch (IOException ex) {
310	pr("Failed to save attachment: " + ex);
311	}
312	pr("---------------------------");
313	}
314	}
315	}
316
317	public static void dumpEnvelope(Message m) throws Exception {
318	pr("This is the message envelope");
319	pr("---------------------------");
320	Address[] a;
321	// FROM
322	if ((a = m.getFrom()) != null) {
323	for (int j = 0; j < a.length; j++)
324	pr("FROM: " + a[j].toString());
325	}
326
327	// REPLY TO
328	if ((a = m.getReplyTo()) != null) {
329	for (int j = 0; j < a.length; j++)
330	pr("REPLY TO: " + a[j].toString());
331	}
332
333	// TO
334	if ((a = m.getRecipients(Message.RecipientType.TO)) != null) {
335	for (int j = 0; j < a.length; j++) {
336	pr("TO: " + a[j].toString());
337	InternetAddress ia = (InternetAddress)a[j];
338	if (ia.isGroup()) {
339	InternetAddress[] aa = ia.getGroup(false);
340	for (int k = 0; k < aa.length; k++)
341	pr(" GROUP: " + aa[k].toString());
342	}
343	}
344	}
345
346	// SUBJECT
347	pr("SUBJECT: " + m.getSubject());
348
349	// DATE
350	Date d = m.getSentDate();
351	pr("SendDate: " +
352	(d != null ? d.toString() : "UNKNOWN"));
353
354	// FLAGS
355	Flags flags = m.getFlags();
356	StringBuffer sb = new StringBuffer();
357	Flags.Flag[] sf = flags.getSystemFlags(); // get the system flags
358
359	boolean first = true;
360	for (int i = 0; i < sf.length; i++) {
361	String s;
362	Flags.Flag f = sf[i];
363	if (f == Flags.Flag.ANSWERED)
364	s = "\\Answered";
365	else if (f == Flags.Flag.DELETED)
366	s = "\\Deleted";
367	else if (f == Flags.Flag.DRAFT)
368	s = "\\Draft";
369	else if (f == Flags.Flag.FLAGGED)
370	s = "\\Flagged";
371	else if (f == Flags.Flag.RECENT)
372	s = "\\Recent";
373	else if (f == Flags.Flag.SEEN)
374	s = "\\Seen";
375	else
376	continue; // skip it
377	if (first)
378	first = false;
379	else
380	sb.append(' ');
381	sb.append(s);
382	}
383
384	String[] uf = flags.getUserFlags(); // get the user flag strings
385	for (int i = 0; i < uf.length; i++) {
386	if (first)
387	first = false;
388	else
389	sb.append(' ');
390	sb.append(uf[i]);
391	}
392	pr("FLAGS: " + sb.toString());
393
394	// X-MAILER
395	String[] hdrs = m.getHeader("X-Mailer");
396	if (hdrs != null)
397	pr("X-Mailer: " + hdrs[0]);
398	else
399	pr("X-Mailer NOT available");
400	}
401
402	static String indentStr = " ";
403	static int level = 0;
404
405	/**
406	* Print a, possibly indented, string.
407	*/
408	public static void pr(String s) {
409	if (showStructure)
410	System.out.print(indentStr.substring(0, level * 2));
411	System.out.println(s);
412	}