Revision history for Perl extension IMAPClient.

Changes in version 2.0.2
------------------------
Fixed bug that caused a compile error on some earlier versions of perl5. 

Noticed that some older versions of perl give spurious "Ambiguous use" warnings here and there, mostly because
I'm not quoting the name of the "History" member of the underlying Mail::IMAPClient hash. These warnings will
go away when you upgrade perl. (I may fix them later, or maybe not. Depends on if I have time.) 

Added new parameter (and eponymous method) Peek, along with new tests for 'make test' for same. See pod for 
further info.

Added some error checking to avoid trying to read or write with an unconnected IMAPClient object.

Made bug fixes to parse_headers and flags.

Added missing documentation for the exciting new message_to_file method (oops). Also cleaned up a few typos in 
the pod while I happened to be there. (I'm sure there are still plenty left.)

Fixed bugs in append and append_file. (Thanks to Mauro Bartolomeoli and to the people at jwm3.org for reporting 
these bugs.) 

Made changes to call to syswrite to guarantee delivery of entire message. (Only affects appends of very large
messages.)

Added the 'close' method to the list of lower-case-is-okay methods (see the section under version 2.0.0 on "NEW
ERROR MESSAGES").

Changes in version 2.0.1
------------------------
Several bug fixes related to the flags method and to spurious warning messages when run with warnings turned on.

A new method, message_to_file, writes message text directly into a file. This bypasses saving the text in the history
buffer and the overhead that entails, which could be especially important when processing big ass messages. Of course
the bad news is that now you'll have to write all that shtuff out to a filehandle, but maybe you wanted to do 
that anyway. Anyhow, between append_file and message_to_file, both of which take filehandle arguments, there should 
be a way to "short circuit" the copying of mail between two imap sessions. I just haven't got it completely figured 
out yet how it would work. Got any ideas? Anyhow, this method is currently considered experimental.

A couple of new tests have been added to go along with our new little method.

I've added a whole bunch more IMAP-related rfc's to the docs/ subdirectory. Trust me, you are going to need them.

Changes in version 2.0.0
-----------------------
NEW I/O ENGINE
This version includes a major rewrite of the I/O engine. It's now cleaner and more reliable. 
Also, output processing is less likely to match patterns that look like server output but are really, say, 
message text contained in a literal or something like that. Also, various problems with blank lines at the 
ends of messages either magically appearing or disappearing should now go away. Basically, it's much better 
is what I'm trying to say.

NEW DEFAULT
The Uid parameter now defaults to true. This should be transparent to existing scripts (except for
those scripts that produce embarrassing results because someone forgot to specify Uid=>1, in which case they'll
magically start behaving somehow).

NEW METHOD
The namespace method has been added, thus implementing RFC2342. If you have any scripts that rely on 
the old, "default method" style of namespace implementation then you should rename those method calls to be mixed
case (thus forcing the AUTOLOADed default method). 

NEW ERROR MESSAGES
Mail::IMAPClient now issues a lot more warning messages when run in warn mode (i.e. $^W is 
true). Of particular interest are methods implemented via the "default method" AUTOLOAD hack. They will 
generate a warning telling you to use mixed- or upper-case method names (but only if warnings are turned on, 
say with the -w switch or $^W++ or something).  The exception are certain unimplemented yet quite popular methods 
that, if ever explicitly implemented, will behave the same way as they do via the default method. (Or at least 
they will remain downwardly compatible. I may add bells and whistles by not by default.) Those methods
are listed in the pod and right here:  store, copy, subscribe, close, create, delete and expunge.

NEW VERSION NUMBERING SCHEME
Changed the version numbering scheme to match perl's (as of perl v5.6.0).

NEW INSTALLATION TESTS
Added a few new tests to the test suite. (Still need more, though.) Also changed fast_io 
and uidplus test suites so that they just "do" the basic tests but with different options set (i.e. Fast_io and 
Uid, respectively).

OTHER CHANGES
- The expunge method now optionally accepts the name of the folder to be expunged. It's also been documented, even
though it technically doesn't exist. (That won't stop it from working, though.) Since expunge deletes messages that
you thought were already deleted, it's only appropriate to use a method that you thought existed but really doesn't,
don't you think? And if you're wondering how I managed to change the behavior of a method that doesn't exist, well,
I don't want to talk about it.

- Speaking of methods that don't exist (also known as methods implemented via "the default method"), effective with
this release there are a number of unimplemented methods that are guaranteed to always exhibit their current 
behavior. In other words, even if I do eventually implement these methods explicitly, they will continue to accept
the same arguments and return the same results that they do now via the default method. (Why I would even bother
to do that is specifically not addressed in this document.) Currently this means that these methods will not 
trigger warnings when called via all-lowercase letters (see "NEW ERROR MESSAGES", above). In the future I hope that
it will also mean that these non-existant but functioning methods will also be documented in the pod.

- Fixed a bug in the flags method introduced in 1.19.  (Thanks to the people at jwm3.org for reporting this!)


Changes in version 1.19
-----------------------
Fixed a bug in which the Folder parameter returned quoted folder names, which sometimes caused other methods
to requote the folders an extra time. (The IMAP protocol is real picky about that.) Thanks go to Felix Finch
for both reporting the bug and identifying the fix.

Siggy Thorarinsson contributed the new "unseen_count" method and suggested a new "peek mode" parameter.
I have not yet gotten around to implementing the new parameter but have included the unseen_count method,
since a) he was kind enough to write it, and b) it tests well. 

In the meantime, you cannot tell methods like "parse_headers" and "message_string" and so forth 
whether or not you want them to mark messages as "\Seen". So, to make life easier for you in particular I 
added a bunch of new methods: set_flag, unset_flag, see, and deny_seeing. The latter two are derivitives 
of the former two, respectively, which should make this sentence almost as difficult to parse as an IMAP 
conversation.

Fixed bug in which "BAD" "OK" or "NO" lines prefixed by an asterisk (*) instead of the tag are not handled 
correctly. This is especially likely when LOGIN to a UW IMAP server fails. Thanks go to Phil Lobbes for 
squashing this bug.

Fixed bug in logout that caused the socket handle to linger. Credit goes to Jean-Philippe Bouchard for 
reporting this bug and for identifying the fix.

Fixed bug in uidvalidity method where folder has special characters in it.

Made several bug fixes to the example script examples/find_dup_msgs.pl. Thanks to Steve Mayer for identifying 
these bugs.

Changed Fast_io to automatically turn itself off if running on a platform that does not provide the necessary
fcntl macros (I won't mention any names, but it's initials are "NT"). This will occur silently unless warnings 
are turned on or unless the Debug parameter is set to true. Previously scripts running on this platform had 
to turn off fast_io by hand, which is lame. (Thank you Kevin Cutts for reporting this problem.)

Updated logic that X's out login credentials when printing debug output so that funky characters in "User" or
"Password" parameters won't break the regexp. (Kevin Cutts found this one, too.)

Tinkered with the Strip_cr method so it can accept multiple arguments OR an array reference as an argument. See
the updated pod for more info.

Fixed a typo in the documentation in the section describing the fetch method. There has been an entire paragraph
missing from this section for who knows how long. Thanks to Adam Wells, who reported this documentation error.

Fixed bug in seen, recent, and unseen methods that caused them to return empty arrays erroneously under certain 
conditions.

Changes in version 1.18
-----------------------
Timeouts during read operations now work correctly.

Fixed several bugs in the I/O engine. This should correct various problems with Fast_io turned on (which
is now the default).

Reworked message_string and body_string methods to avoid bugs when Uid set to true.

Changes in version 1.17
-----------------------

Added support for the Oracle IMAP4r1 server.

Tinkered with the DESTROY method so that it does a local($@) before doing its evals. This will
perserve the value of $@ when the "new" method fails during a login but the DESTROY's "logout" succeeds. 
The module was setting the $@ variable, but on some versions of perl the DESTROY method would clobber $@ 
before anything useful could be done with it! Thanks to Kimmo Hovi for reporting this problem, which was 
harder to debug than you might think.

Changes in version 1.16
-----------------------

IMPORTANT:  Made Fast_IO the default. You must specify Fast_io => 0 in your new method call or
invoke the Fast_io method (and supply 0 as an arg) to get the old behavior. (This should 
be transparent to most users, but as always your mileage may vary.)

Reduced the number of debug msgs printed in the _read_line internal method and added a debug msg
to report perl and Mail::IMAPClient versions.

The message_count method will now return the number of messages in the currently select folder if
no folder argument is supplied. 

The message_string method now does an IMAP FETCH RFC822 (instead of a FETCH RFC822.HEADERS and
a FETCH RFC822.TEXT), which should eliminate missing blank lines at the ends of some messages on 
some IMAP server platforms. It also returns undef if for some reason the underlying FETCH fails
(i.e. there is no folder selected), thanks to a suggestion by Pankaj Garg. It has also been slightly
re-worked to support the changes in the I/O engine from version 1.14.

Re-worked the body_string method to support the I/O engine changes from v1.14.

Fixed a bug in parse_headers when used with multiple headers and the Uid parameter set to a true
value.

Documented in this file a fix for a bug in the flags method with the Uid parameter turned on. 
(Belated thanks to Michael Lieberman for reporting this bug.)

Changes in version 1.15
-----------------------
Fixes the test suite, which in v1.14 had an "exit" stmt that caused early termination of the tests.
(I had put that "exit" in there on purpose, and left it in there by accident.)

Changes in version 1.14
-----------------------
Fixed a bug in the _readline subroutine (part of the I/O engine) that was caused by my less-than-perfect
interpretation of RFC2060. This fix will allow the Mail::IMAPClient module to function correctly with
servers that imbed literal datatypes in the middle of response lines (rather than just at the end of 
them). Thanks to Pankaj Garg for reporting this problem and providing the debugging output necessary
to correct it.

Fixed a bug in parse_headers that was introduced with the fix to the I/O engine described above.

Changes in version 1.13
-----------------------
Changed the parse_headers method so that it uses BODY.PEEK instead of BODY. This prevents the
parse_headers method from implicitly setting the "\Seen" flag for messages that have not been
otherwise read. This change could produce an incompatibility in scripts that relied on the 
parse_headers previous behavior. 

Fixed a bug in the flags method with the Uid parameter turned on.  (Thanks to Michael Lieberman 
for reporting this bug.)

Changes in version 1.12
-----------------------
Fixed a bug in the folders method when called first with a second arg and then without a second arg.

Tested sucessfully with perl-5.6.0. 

Added a section to the pod documentation on how to report bugs. I've had to ask for output from 
scripts with "Debug => 1" so many times that I eventually decided to include the procedure for 
documenting bugs in the distribution. (Duh! It only took me 11 releases to come up with that 
brainstorm.) Often following the procedures to obtain the documentation is enough; once people 
see what's going on (by turning on Debug =>1) they no longer want to report a bug. 

Did I mention it's a good idea to turn on debugging when trying to figure out why a script 
isn't working? (It is.)

In order to make the Debug parameter friendlier, it now prints to STDERR by default. You can override
this by supplying the spanking brand new Debug_fh parameter, which if supplied had better well point
to a filehandle (either by glob or by reference), and by 'filehandle' I mean something besides STDIN!

Debugging mode will now also X-out the login credentials used to login. This will make it easier
to share your debugging output.

Added documentation for the State parameter, which must be set manually by programmers who are 
not using Mail::IMAPClient's connect and/or login methods but who are instead making their own
connections and then using the Socket parameter to turn their connections into IMAP clients.

Fixed bug in parse_headers with Uid turned on.

Fixed bug in parse_headers when using the argument "ALL".

Changes in version 1.11
-----------------------
Added new example script, copy_folder.pl, to demonstrate one way to copy entire folders between
imap accounts (which may or may not be on the same server). This example is right next to all the
others, in the examples/ subdirectory of the distribution.

Changed error handling slightly. $@ now contains pretty much the same stuff as what gets returned
by LastError, even when LastError won't work (i.e. when an implicit connect or login fails and so
no object reference is returned by new). You can thank John Milton for the friendly nagging that
got me to do this.

Added new test suite for the fast_io engine. This should make it easier to determine whether or
not the fast_io engine will work on your platform. 

Implemented a work-around to allow the Port parameter to default despite a known bug in 
IO::Socket::INET version 1.25 (distributed with perl 5.6.0).

Fixed a bug in the message_string method in which the resulting text string for some mime messages 
to be incompatible with append.

Fixed a bug in the Fast_io i/o engine that could cause hangs during an append operation.

Changed a number of regular expressions to accept mixed-case "Ok", "No" or "Bad" responses
from the server and to do multi-line matching.

Fixed a bug in the append method that was causing extra carriage returns to appear in messages 
whose lines were already terminated with the CR-LF sequence. Thanks to Heather Adkins for 
reporting this bug.

Enhanced the parse_headers routine so that it is less sensitive to variations of case in message
headers. Now, the case of the returned key matches the case of the field as specified in the 
parse_headers method's arguments, regardless of its case in the message being parsed. 
(You can thank Heather Atkins for this suggestion as well.) See below for more changes to 
parse_headers in this release.

Improved the append method so that it has better error handling and error recovery. Thanks to 
Mark Keisler for pointing out some bugs in the error handling code in this method.

Added the append_file method, which is like the append method but it works on files instead of strings.
The file provided to append must contain an RFC822-formatted message. Use of the append_file method
avoids having to stuff huge messages into variables before appending them. Thanks to Jim Martin
(http://jwm3.org) for suggesting this method.

Changed the flags method and the parse_headers method so that a reference to an array of 
message sequence numbers (or message UIDS if the Uid parameter is turned on) can optionally be passed 
instead of a single message sequence number (or UID). Use of this enhancement will change your return
values so be sure to read the pod.  Thanks to Adrian Smith (adrian.smith@ucpag.com) for delivering 
this enhancement.

Fixed a bug in "message_string" that caused the blank lines between headers and body to fall out of
the string.

Tinkered with the undocumented _send_line method to permit an optional argument to suppress the 
automatic insertion of <CR><LF> at the end of strings being sent. (NOTE: I'm telling you this 
because I'm a nice guy. This doesn't mean that _send_line is now a programming interface.)

Changes in version 1.10
-----------------------

Added two new methods, lsub and subscribed. lsub replaces the behavior of the default method and
should be downwardly compatible. The subscribed method works like the folders method but the results
include only subscribed folders. Thanks to Alexei Kharchenko for providing the code for lsub (which
is the foundation upon which 'subscribed' was built).

Changes in version 1.09
-----------------------

Changed login method so that values for the User parameter that do not start and end with quotes
will be quoted when sent to the server. This is to support user id's with embedded spaces, which
are legal on some platforms. 

Changed name of test input file created by perl Makefile.PL and used by 'make test' from .test to
test.txt to support weird, offbeat OS platforms that cannot handle filenames beginning with a dot.

Fixed bugs in seen, unseen, and recent methods.  (These are almost the same method anyway; they
are dynamically created at compile time from the same code, with variable substitution filling in
the places where "seen", "unseen", or "recent" belong.) The bug caused these methods to return the
transaction number of the search as if it were the last message sequence number (or message uid) in
the result set.

Added the 'since' method, which accepts a date in either standard perl format (seconds since 1/1/1970, or
as output by time and as accepted by localtime) or in the date_text format as defined in RFC2060 
(dd-Mon-yyyy, where Mon is the English-language three-letter abbreviation for the month). It searches
for items in the currently selected folder for messages sent since the day whose date is provided as
an argument.

Added 'sentsince', 'senton', 'sentbefore', 'on', and 'before' methods which are totally 100% just
like the 'since' method, except that they run different searches. (Did I mention that it's useful
to have RFC2060 handy when writing IMAP clients?)

Added two new methods, run and tag_and_run, to allow IMAP client programmers finer control over
the IMAP conversation. These methods allow the programmer to compose the entire IMAP command string
and pass it as-is to the IMAP server. The difference between these two methods is that the run 
method requires that the string include the tag while the tag_and_run method requires that it does not.

To a similar end, the pre-existing Socket parameter and eponymous accessor method has been 
documented to allow direct access to the IMAP socket handle and to allow the socket handle to 
be replaced with some other file handle, presumably one derived from a more interesting technology 
(such as SSL).

Fixed a bug that caused blank lines to be removed from 'literal' output (as defined in RFC2060)
when fast_io was not used. This bug was especially likely to show up in routines that fetched a 
message's body text.  The fact that this bug did not occur in the newer fast_io code may 
indicate that I've learned something, but on the other hand we shouldn't jump to rash conclusions.

I've run benchmarks on the fast_io code to determine whether or not it is faster and, if so, under
what circumstances. It appears that the fast_io code is quite faster, except when reading large 
'literal' strings (i.e. message bodies), in which case it appears to take the same amount of time 
as the older i/o code but at the cost of more cpu cycles (which means it may actually be slower 
on cpu-constrained systems). The reason for this is that reads of literal strings are by their 
nature already optimized, but without the overhead of fcntl calls. So if you expect to be doing 
lots of message text (or multipart message body parts) fetching you should not use fast_io, but in 
pretty much any other case you should go ahead and use it. In any event, a number of people have 
tested fast_io so I no longer consider it experimental, unless you're running perl on NT or CP/M 
or something funky like that, in which case let me know how you make out! 

Changes in version 1.08
-----------------------

Maintenance release 1.08a fixes a bug in the folders method when supplying the optional argument
(see "Enhanced folders method..." below) with some IMAP servers.

Added option to build_ldif.pl (in the examples subdirectory) to allow new options and to better
handle quoted comments in e-mail addresses. Thanks to Jeffrey Fiedl, whose book _Mastering 
Regular Expressions_ (O'Reilly) helped me to figure out a good way to do this.

Fixed documentation error that failed to mention constraints on when the append method will 
return the uid of the appended message. (This feature only works with servers that have the 
UIDPLUS capability.)

Added/improved documentation somewhat.

The copy method now returns a comma-separated list of uids if successful and if the IMAP server
supports UIDPLUS extentions. The move method now works similarly.

Added new method uidnext, which accepts the name of a folder as an argument and returns the next
available message UID for that folder.

The exists and append methods now will handle unquoted foldernames with embedded spaces or quotes
or whatever. Including quotes as part of the argument string is no longer required but is still
supported for backwards compatibility reasons. In other words, $imap->exists(q("Some Folder")) is
now no longer necessary (but will still work). $imap->exists(some folder) is good enough.

Mail::IMAPClient has been tested successfully on Mirapoint 2.0.2. (Thanks to Jim Hickstein.)

I've now installed the UW imapd IMAP4rev1 v12.264 on one of my machines so I'm better able to 
certify that platform. All the tests in 'make test' work there (or are at least gently skipped). 

Fixed bug in getacl in which folder names were quoted twice. (Thanks to Albert Chin for 
squashing this bug.) Similar bugs existed in the other ACL methods and were similarly 
fixed.

Fixed a bug in message_uid that basically caused it to not work. Muchos gracias to Luvox (aka 
fluvoxamine hydrochloride) for providing me with just the help I needed to discover and fix this 
bug. 

Enhanced folders method to allow an argument. If an argument is supplied, then the folders method
will restrict its results to subfolders of the supplied argument (which should be the name of a 
parent folder, IMHO). This is implemented by supplying arguments to the LIST IMAP Client command 
so we are optimizing network I/O at the expense of possible server incompatibilities.  If you 
find server incompatibilities with this then please let me know, and in the meantime you can 
always grep(/^parent/,$imap->folders) or something. Or re-implement the folders method yourself.


Changes in version 1.07
-----------------------
Added a new parameter, Fast_io, which, if set to a true value, will attempt to implement a faster
I/O engine. USE THIS AT YOUR OWN RISK. It is alpha code. I don't even know yet if it even helps.

Added support for spaces in folder names for the autoloaded subscribe method.

Added new methods setacl, getacl, deleteacl, and listrights. These methods are not yet fully 
tested and should be considered beta for this release.

Enhanced support for the myrights method (which is implemented via the default method).

Fixed bug in append method that caused it to hang if server replied to original APPEND with
a NO (because, say, the mailbox's quota has been exceeded).

Removed the autodiscovery of the folder hierarchy from the login method. This will speed up 
logging in but may delay certain other methods later (but see the next item, below).

Updated the exists method to issue a "STATUS" IMAP Client command, rather than depend on the 
folder hierarchy being discovered via 'LIST "" "*"'. Apparently this speeds things up a lot for
some configurations, although the difference will be negligable to many.

Updated Makefile.PL to support the PREFIX=~/ directive. Thanks to Henry C. Barta (hbarta@wwa.com)
for this fix.

Added the Timeout parameter and eponymous accessor method, which, if set to a true value, 
causes reads to time out after the number of seconds specified in the Timeout parameter. The
value can be in fractions of a second. This has not been fully tested though, so use of this parameter
is strictly "Beta".

Enhanced support for the UID IMAP client command. Setting the new Uid parameter to a true value
will now cause the object to treat all message numbers as message UID numbers rather than message
sequence numbers. Setting the Uid parameter to a false value will turn off this behavior again. 

Updated test suite to handle servers that cannot do UIDPLUS and to add tests for the Uid parameter.

Incorporated bug fixes for recent_count and message_count in which some servers are sticking in
extra \r's, and updated DESTROY to remove spurious warning messages under some versions of perl
(thanks to Scott Wilson for catching and killing these bugs).


Changes in version 1.06
-----------------------
Changed folders method so that it correctly handles mail folders whose names start and end
with quotes.

Changed append method so that it returns the uid of the newly appended message if
successful. Since the uid is a "true" value this should not affect the behavior of
existing scripts, although it may enhance the behavior of new scripts ;-)

Fixed bug in parse_headers that could cause script to die if there were no headers of
the type requested and if there was a space on the blank line returned from FETCH.
(Some blank lines are blanker than others...)

Added the "flags" method, which returns an array (or array reference if called in scalar
context) containing the flags that have been set for the message whose sequence number has
been provided as the argument to the method. 

Added the "message_string" method, which accepts a message sequence number as an argument and
returns the contents of the message (including RFC822 headers) as a single string.

Added the "body_string" method, which accepts a message sequence number as an argument and
returns the contents of the message (not including RFC822 headers) as a single string.

Changes in version 1.05
-----------------------

Patched the 'make test' basic test to work correctly on systems that do not
support double quotes in folder names. Thanks to Rex Walters for this fix.

Added a new example script, build_dist.pl, that rumages through a folder 
(specified on the command line) and collects the "From:" address, and then 
appends a message to that folder with all those addresses in both the To: field 
and the text, to facilitate cuting and pasting (or dragging and dropping) 
into address books and so forth. (Note that the message doesn't actually get 
sent to all those people; it just kind of looks that way.)

Also added another example, build_ldif.pl, that is similar to build_dist.pl 
except that instead of listing addresses in the message text, it creates a 
MIME attachment and attaches a text file in LDIF format, which can then be
imported into any address book that supports LDIF as an import file format.
This example requires the MIME::Lite module. MIME::Lite was written by Eryq 
(okay, Erik Dorfman is his legal name), and is totally available on CPAN. 

This distribution has now been tested on Mirapoint Message Server Appliances
(versions 1.6.1 and 1.7.1). Many thanks to Rex Walters for certifying this
platform and for providing a test account for future releases.

Changes in version 1.04
-----------------------

Fixed situation in which servers that include the "<tag> <COMMAND> OK\r\n" line
as part of a literal (i.e. text delivered via {<length>}\r\n<length> bytes\r\n)
caused the module to hang. This situation is pretty rare; I've only run across
one server that does it (UW-IMAP). I'm sure it's a bug; I'm not sure whose. ;-}
Many thanks to Thomas Stromberg for 1) pointing out this bug and 2) providing 
me with facilities to find and fix it!

Fixed potential bug in I/O engine that could cause module to hang when reading 
a literal if the first read did not capture the entire literal.

Cleaned up some unnecessary runtime warnings when a script is executed with 
the -w switch.

Added new tests to 'make test'. I just can't keep my hands off it! ;-)

Enhanced the append method and several tests in 'make test' to be more widely
compatible. Successfully tested on UW-IMAP, Cyrus v1.5.19, Netscape Messenger 
4.1, and Netscape Messenger v3.6. If you know of others please add them to 
the list! 

Fixed a bug in the separator method (new in 1.03) that caused it to fail if
'inbox' was specified in lowercase characters as the method's argument. 

Added a new example, imap_to_mbox.pl, contributed by Thomas Stromberg. This 
example converts a user's IMAP folders on an IMAP server into mbox format. 

Changes in version 1.03
-----------------------
Reworked several methods to support double-quote characters within folder 
names. This was kind of hard. This has been successfully tested with create, 
delete, select, and folders, to name the ones that come to mind.

Reworked the undocumented method that reads the socket to accept and handle
more gracefully lines ending in {nnn}\r\n ( where nnn is a number of 
characters to read). This seems to be part of the IMAP protocol although I 
am at a total loss as to where it's explained, other than a brief description 
of a "literal's" bnf syntax, which hardly counts. 

Added separator object method, which returns the separator character in use 
by the current server. 

Added is_parent method, which returns 1, 0, or undef depending on whether a 
folder has children, has no children, or is not permitted to have children.

Added tests to 'make test' to test new function. Also changed 'make test' to 
support IMAP systems that allow folders to be created only in the user's INBOX 
(which is the exact opposite of what my IMAP server allows...oh, well).

Fixed a bug that caused search to return an array of one undef'ed element 
rather than undef if there were no hits.


Changes in version 1.02
-----------------------
Fixed bugs in search and folders methods. 

Fixed bug in new method that ignored Clear => 0 when specified as arguments to 
new.

Changes in version 1.01
-----------------------
Fixed a bug in test.pl that caused tests to fail if the extended tests were not used.

Added method 'parse_headers' to parse the header fields of a message in the 
IMAP store into a perl data structure.

Changes in version 1.00
-----------------------
Made cosmetic changes to documentation.

Fixed a bug introduced into the 'folders' method in .99.

Changed 'new' method so that it returns undef if an implicit connection or 
login is attempted but fails. Previous releases returned a Mail::IMAPClient 
object that was not connected or not logged in, depending on what failed.

Changed installation script so that it reuses the parameter file for test.pl 
if it finds one. Installation can be run in the background if the test.txt file 
exists. Touching it is good enough to prevent prompts; having a correctly 
formatted version (as described in test_template.txt) is even better, as it will 
allow you to do a thorough 'make test'.

Changes in version .99 
----------------------
Added the Rfc822_date class method to create RFC822-compliant date fields in 
messages being appended with the append method.

Added the recent, seen, and unseen methods to return an array of sequence 
numbers from a SEARCH RECENT, SEARCH SEEN, or SEARCH UNSEEN method call. 
These methods are shortcuts to $imap->search("RECENT"), etc. 

Added the recent_count method to return the number of RECENT messages in a 
folder. Contributed by Rob Deker.

Added 'use strict' compliance, courtesy of Mihai Ibanescu.

Fixed a bug in the search method that resulted in a list with one empty member 
being returned if a search had no hits. The search method now returns undef 
if there are no hits.

Added 'authenticate' method to provide very crude support for the IMAP 
AUTHENTICATE command. The previous release didn't support AUTHENTICATE at all, 
unless you used very low-level (and undocumented) methods. With the 
'authenticate' method, the programmer still has to figure out how to 
respond to the server's challenge. I hope to make it friendlier in the 
next release. Or maybe the one after that. This method is at least a start, 
albeit a pretty much untested one.

Added Rfc822_date class method to facilitate creation of "Date:" header 
field when creating text for the "append" method, although the method may 
come in handy whenever you're creating a Date: header, even if it's not 
in conjuction with an IMAP session.

Added more tests, which will optionally run at 'make test' time, provided all 
the necessary data (like username, hostname, password for testing an IMAP 
session) are available.


Changes in version 0.09  
-----------------------
Thu Aug 26 14:10:03 1999 - original version; created by h2xs 1.19

# $Id: Changes,v 20001010.5 2000/11/10 22:08:05 dkernen Exp $
