CHANGES for MHonArc
http://www.oac.uci.edu/indiv/ehood/mhonarc.html
Revision history for MHonArc. Changes listed are brief. Consult
the documentation for further information/clarification. It is
possible that not all changes are documented here.
MM/DD/YY
=======================================================================
#######################################################################
=======================================================================
06/09/97 (2.1.0)
Enhancements/Changes
--------------------
o Added the following resources:
DEFRCNAME Base name of default resource file
FOLUPBEGIN Begin markup for message follow-ups
FOLUPEND End markup for message follow-ups
FOLUPLITXT Markup for follow-up list entry
GZIPEXE Pathname of gzip executable
GZIPFILES Gzip files
GZIPLINKS Add ".gz" to filenames in URLs
HTMLEXT HTML extension for files
MSGBODYEND Markup at end of converted message body
MSGPREFIX Prefix for message filenames
REFSBEGIN Begin markup for message references
REFSEND End markup for message references
REFSLITXT Markup for reference list entry
TSORT Sort threads by date or message number
TSUBSORT Sort threads by subject
o Changes to mhexternal.pl filter:
- Two new options: useicons and iconurl="url".
- Added some more content-types to CTExt hash.
o Added filter for text/enriched data (mhtxtenrich.pl).
o Changed default setting for MIMEFILTERS. The following
was added:
model/*:m2h_external'filter:mhexternal.pl
text/enriched:m2h_text_enriched'filter:mhtxtenrich.pl
text/richtext:m2h_text_enriched'filter:mhtxtenrich.pl
o Some code moved to new library files (mhopt.pl,
mhfile.pl).
Bug Fixes
---------
Problem: An undefined subroutine error occured during an
RMM operation when there are messages with non-ASCII
encodings in message headers.
Solution: Proper libraries are now loaded for RMM operations.
Problem: Subjects using the "... -Reply" convention started
a new thread.
Solution: Fixed typo in regexp.
Problem: Nested anchor markup occurs on index pages where
a message's subject contains a URL and the subject
is used to link to the message page.
Solution: Replaced default routine that converts subject text
=======================================================================
05/23/97 (2.0.1)
Bug Fixes
---------
Problem: Bogus empty entry shows up in the database. Bogus
entry appears if a duplicate message is detected.
Potential visible problems of bogus entry are: mailto
links in headers corrupted; a blank listing in the
index. Maybe other potential problems.
Solution: There is a be a bug in some versions of Perl where a
hash key gets added invalidly. The section of code that
this occurs has been modified to avoid the problem.
For existing databases with a bogus empty entry,
MHonArc now removes any empty key entries.
However, it is recommed to rebuild the archive.
Problem: Index pages are not properly updated if zero messages
are in the archive (like through the -rmm option).
Even -editidx cannot cause a proper update.
Solution: Page count was set to zero when no messages exist. This
caused problems in conditional checks in the write index
routines. To fix, page count is forced to 1 if their
are no messages.
=======================================================================
05/16/97 (2.0.0)
Enhancements:
o Added TCONTBEGIN, TCONTEND, TINDENTBEGIN, TINDENTEND
resources. They are provided to support the formatting
of threads that split across multiple pages of a
multipage index.
o Added "nonfixed", "maxwidth", and "keepspace" options
to text/plain (mhtxtplain.pl) filter.
o A directory file is now used for performing archive
locking. This should provide better portability across
operating systems.
o Dervied files returned from filters can be directories.
If so, the any directory is completely removed if the
message is removed.
o The mhexternal.pl filter can now output files into
a subdirectory with the "subdir" option. This may be
useful for those wanting to use the "usename" option
and avoid potential filename conflicts.
o The $NEXT...$ and $PREV...$ resource variables now
behave as one may expect. I.e. The are always relative
to the base sort method: date, author, subject, message
number. The REVERSE resource has no effect on their
values. Therefore, the variables no longer refer to
the actual physical listing order. This new behavior
no longer requires a users to redefine button and link
resources for the sake of specifying REVERSE.
o "Resent-To" and "Resent-Cc" will now have e-mail
address hyperlinked.
o Unknown types processed by mhexternal.pl now default
to have a ".bin" extension. This should cause HTTP
servers to treat the file as application/octet-stream.
o Standard input can be specified as the source of a
mailbox by using a lone "-" on the command-line. Note:
You may need to specify "--" first to shut-off option
processing so the "-" is not interpreted as the start
of an option.
Bug Fixes:
o Problem: Index pages with last page links are not updated
when a new page is added.
Solution: All index pages are regenerated if a new page
is added.
o Problem: "-idxsize 0" does not give unlimited page size.
Solution: Problem fixed and now works as documented.
o Problem: "-maxsize 0" does not reset archive with
unlimited messages allowed.
Solution: Problem fixed and now works as documented.
o Problem: Non-ASCII text encodings (=?ISO-..?...) are not
properly decoded when EDITIDX is set.
Solution: The charset filter libraries are now loaded
for EDITIDX.
o Problem: MODTIME resource setting not remembered across
archive updates.
Solution: MODTIME resource is now properly stored in the
database.
o Problem: Specifying -rmm and -single caused confusion on
what MHonArc does.
Solution: The case is properly handled, with -rmm taking
precedence.
o Problem: 4 digit year not checked before 2 digit year
when parsing dates.
Solution: Fixed.
o Problem: Some index pages in multipage indexes not
updated when messages expire.
Solution: Fixed; all pages are regenerated when a message
expires.
o Problem: Setting MONTHS and MONTHSABR had no effect.
Solution: Fixed.
o Problem: $TNEXTFROM$ actually gave the value of $NEXTFROM$.
Solution: Fixed.
o Problem: Numerical timezone offsets not handled properly
when the offset contained non-zero minutes. This
caused message to be sorted wrong by date.
Solution: Fixed.
o Problem: Some characters were not properly escaped when
specifying the "in URL" modifier to a resource
variable.
Solution: Fixed.
o Problem: Thread (formatting) information lost when a
thread is split across multiple pages.
Solution: Fixed. New resources (TCONTBEGIN, TCONTEND,
TINDENTBEGIN, TINDENTEND) exist to preserve
formatting of threads across pages.
o Problem: If specifying the REVERSE, the next/prev
links in messages do not point to the proper
message as one may expect.
Solution: This should be fixed by the new behavior of
$NEXT...$ and $PREV...$ resource variables.
=======================================================================
02/28/97 (2.0.0 beta 3)
o Removed bogus call to output_db() when GENIDX is active.
The routine is not loaded when GENIDX is active and the
call causes Perl to abort.
o Duplicates of the OTHERINDEXES resource should no longer
occur. Before, if the OTHERINDEXES resource gets set
during invocation, mhonarc would store duplicate values,
causing unnecessary work to be performed.
o Fixed problem with blank indexes being created for
OTHERINDEXES. Apparently, there is a bug in Perl, and
a work-around fix has been done.
o Fixed bug where an extra TSUBLISTEND could get generated.
=======================================================================
02/17/97 (2.0.0 beta 2)
o Added <nosubsort> element and -nosubsort option.
o Changed M2H_DATEFMT envariable to M2H_GMTDATEFMT.
o Documented LOCKTRIES and LOCKDELAY resources.
o New resources:
AUTHORBEGIN - Markup for start of author group
AUTHOREND - Markup for end of author group
AUTHSORT - Sort messages by author
DAYBEGIN - Markup for start of day group
DAYEND - Markup for end of day group
IDXLABEL - Label for main index
MSGGMTDATEFMT - Format of $MSGGMTDATE$
MSGLOCALDATEFMT - Format of $MSGLOCALDATE$
SUBJECTBEGIN - Markup for start of subject group
SUBJECTEND - Markup for end of subject group
TIDXLABEL - Label for thread index
o New resource variables
$IDXLABEL$ - Label for main index
$MSGGMTDATE$ - Date of message in GMT format
$MSGLOCALDATE$ - Date of message in local format
$TIDXLABEL$ - Label for thread index
o Some enhancements to the documentation.
o Some code changes.
=======================================================================
01/31/97 (2.0.0 beta 1)
o RFC 1522 support. Charset filters can be plugged in to
handle character sets not recognized by mhonarc.
The library, iso8859.pl, contains charset filters for
character sets iso-8859-[1-10].
o Multi-page index generation.
o Subject-based threading is done inconjunction with explicit
threading.
o Missing messages in a thread are recognized when processing
messages that utilize the References field.
o New resources for customizing thread indexes. There is
now complete user control on how thread indexes are
formatted.
o Resource are available to access the next and previous messages
in thread from messages.
o Inclusion of files containing resource settings can be
done within a resource file.
o Support for a default resource file. The default resource
file is one of the following, in the order of precedence:
1. File specified by the M2H_DEFRCFILE envariable
2. $HOME/.mhonarc.rc
3. <Install-Library-Dir>/.mhonarc.rc
"<Install-Library-Dir>" is the path of the MHonArc library
directory defined during installation. For MS-DOS, replace
".mhonarc.rc" with "MHONARC.RC".
o Support for user defined resource variables.
o Support for user defined derived files for messages.
o Support for the Content-Length field.
o Modification time of messages, and derived files, can be
set to the Received/Date time specified in the message.
o More control on how mail headers get formatted.
o Added filter in mhexternal.pl to be the default filter
for main content-types: application, image, video, audio.
o List of enhancements to mhexternal.pl:
- Show content-type if the data is not recognized.
- New `ext' filter option to define the extension to
use for the created file.
- New `type' filter option to define the "english"
type name of the create file.
- Content-Disposition is supported. Filenames are
ignored still unless `usename' argument passed to
filter.
- Added recognition of few more content-types
o Updated date parsing to figure out the date of a message to be
more robust on how it parses a date. If unable to parse
date, the message will take on the current time for sorting
purposes. Also, character case is ignored in month and weekday
names.
o The comment declaration "<!--X-Body-of-Message-->" is
now inserted between the message header and body. Helps
in the building of some search indexes to restrict searches
on message data.
o Many resource settings are no longer stored in database if
the resource is the default value. Save some disk space and
allows resources to self adjust when a dependent resource is
changed.
o The text/plain filter in mhtxtplain.pl has the following
enhancements:
- Check for charset to control character conversion.
- Integrated iso-2022-jp filter (keys off charset)
- Filter option "quote" cause quoted text in message
to be italicized.
- Filter option "asis" defines a list of charsets to
not convert to sgml entitites. Example usage:
asis=iso-8859-1:iso-8859-2
o mhtxt2022.pl has been removed since the code has been
integrated into mhtxtplain.pl.
o Resource file elements that have textual content (ie. no
line oriented content) can specify the "chop" attribute
to have the last end-of-line stripped from the content.
Example usage:
<nextbuttonia chop>
[Next]
</nextbuttonia>
o Fixed bug in creating links of message-ids. Mhonarc blindingly
made links of message-ids when editting messages w/o
consideration that the message-ids may already be linked. This
caused markup like the following to occur:
<A HREF="..."><A HREF="..."><A HREF="...">...</A></A></A>...
Browsers handle the invalid markup with no problems, causing
the bug to go unnoticed for a long time. Now, only new
added message-ids are scanned for when creating links.
o $readmail'FieldSep should now be used instead of $FieldSep
for separating duplicate fields in a parsed message header.
o The -scan output now prints a 4 digit year.
o Bogus space no longer appears in subjects and dates.
o Outdir permissions are not checked if -single specified.
o Some internal changes to how data is stored in databases
(needed for 1522 support). v2.0 will automatically
modify 1.x databases to the 2.0 format.
o The -single option utilizes the same mail output routine
utilized by regular archive processing.
o MhonArc will now handle numbers with leading zeros when
the -rmm option is specified.
o New resources:
CHARSETCONVERTERS
- Specify character set filters
CONLEN - Honor content-lengths
DECODEHEADS - Decode 1522 encoded data, set for decode
only, as message headers are read (see
note below)
DEFINEVAR - Define resource variables
DEFINEDERIVED - Define user defined derived file
EXPIREDATE - Message cut-off date
EXPIREAGE - Time in seconds from current if msg expires
FIELDSBEG - Begin markup of converted mail header
FIELDSEND - End markup of converted mail header
FLDBEG - Begin markup of mail header field text
FLDEND - End markup of mail header field text
FOLREFS - Print links to explicit follow-ups & refs
GMTDATEFMT - Format of $GMTDATE$
HEADBODYSEP - Markup between converted mail header & body
IDXPREFIX - Prefix for multi-page main index filenames
INCLUDE - Read resources from other files
LABELBEG - Begin markup of mail header label
LABELEND - End markup of mail header label
LOCALDATEFMT - Format of $LOCALDATE$
MAIN - Create main index
MHPATTERN - Expression for mesg files in a directory
MODTIME - Set file times to message dates
MONTHS - Full month names: EOL or ':' separated
MONTHSABR - Abbrieviated month names: EOL or ':'
separated
MULTIPG - Create multi-page indexes
NEXTPGLINK - Link to next page in main index
NEXTPGLINK - Inactive link to next page in main index
NOCONLEN - Ignore content-lengths
NODECODEHEADS - Leave message headers "as is" when read
(see note below)
NOFOLREFS - Do not print links to follow-ups & refs
NOMAIN - Do not create main index
NOMODTIME - Do not set file times to message dates
NOMULTIPG - Do not create multi-page indexes
PREVPGLINK - Link to previous page in main index
PREVPGLINKIA - Inactive link to previous page in main index
SUBJECTHEADER - Markup for subject header in converted mail
TIDXPREFIX - Prefix for multi-page thread index filenames
TSUBLISTBEG - List begin in sub-thread
TSUBLISTEND - List end in sub-thread
TSUBJECTBEG - Begin markup for subject-based sub-thread
TSUBJECTEND - End markup for subject-based sub-thread
TSINGLETXT - Markup for mesg not part of a thread
TTOPBEGIN - Begin for top of a thread
TTOPEND - End for a thread
TLINONE - Markup for missing message in a thread
TLIEND - Thread idx list item end
TNEXTBUTTON - Thread next button template
TNEXTBUTTONIA - Inactive thread next button template
TNEXTLINK - Thread next link template
TNEXTLINKIA - Inactive thread next link template
TNEXTPGLINK - Link to next page in thread index
TNEXTPGLINKIA - Inactive link to next page in thread index
TPREVBUTTON - Thread previous button template
TPREVBUTTONIA - Inactive thread previous button template
TPREVLINK - Thread previous link template
TPREVLINKIA - Inactive thread previous link template
TPREVPGLINK - Link to prev page in thread index
TPREVPGLINKIA - Inactive link to prev page in thread index
WEEKDAYS - Full weekday names: EOL or ':' separated
WEEKDAYSABR - Abbrieviated weekday names: EOL or ':'
separated
NOTE
1522 processing is done when creating HTML output and
the (relevant) data stored in the database stays in
encoded form. The DECODEHEADS resource can be set
to decode decode-only charsets when message headers
are read. Hence, the decode-only charsets will be
stored in decoded form. Regular 1522 processing is
still done to still-encoded data when generating output.
The default is NODECODEHEADS.
o List of removed resources:
NOTSUBSORT, TSUBSORT
o New resource variables:
(NOTE: Some variables are only valid in certain contexts)
$FIRSTPG$ - Filename of first page of main index
$IDXPREFIX$ - Prefix to main index pages' filenames
$LASTPG$ - Filename of last page of main index
$NEXTPG$ - Filename of next main index page
$NEXTPGLINK$ - Link to next page of main index
$NUMOFPAGES$ - Total number of pages in index
$PAGENUM$ - Current page number of index
$PREVPG$ - Filename of previous main index page
$PREVPGLINK$ - Link to previous page of main index
$TFIRSTPG$ - Filename of first page of thread index
$TIDXPREFIX$ - Prefix to thread index pages' filenames
$TLASTPG$ - Filename of last page of thread index
$TNEXTBUTTON$ - Button for next mesg in thread
$TNEXTFROM$ - From of next mesg in thread
$TNEXTFROMADDR$ - From address of next mesg in thread
$TNEXTFROMNAME$ - From name of next mesg in thread
$TNEXTLINK$ - Link for next mesg in thread
$TNEXTMSG$ - Next mesg filename in thread
$TNEXTMSGNUM$ - Next mesg number in thread
$TNEXTPG$ - Filename of next thread index page
$TNEXTPGLINK$ - Link to next page of thread index
$TNEXTSUBJECT$ - Next mesg subject in thread
$TPREVBUTTON$ - Button for prev mesg in thread
$TPREVFROM$ - From of previous mesg in thread
$TPREVFROMADDR$ - From address of previous mesg in thread
$TPREVFROMNAME$ - From name of previous mesg in thread
$TPREVLINK$ - Link for prev mesg in thread
$TPREVMSG$ - Previous mesg filename in thread
$TPREVMSGNUM$ - Previous mesg number in thread
$TPREVPG$ - Filename of previous thread index page
$TPREVPGLINK$ - Link to previous page of thread index
$TPREVSUBJECT$ - Previous mesg subject in thread
o Removed resources:
NOTSUBSORT, TSUBSORT
o Some changes to default resource settings.
o Reorganized code. Some new libraries have been created
to help in maintenance.
o Source code has been put under SCCS revision control.
=======================================================================
07/12/96 (1.2.3)
o Extracted initialization of data structures into mhinit.pl.
The file is just required from the main source.
o Use q{} instead of qq{} when trying to read database file.
Should fix require problem under MS-DOS.
o Added <!--X-Reference-Id: ... --> comments at beginning
of messages. May aid in database recovery techniques.
o ';'s are now deleted in filenames in mhexternal.pl
(applicable only when "usename" option specified)
o Added recognition of '/' when converted e-mail addresses
to mailto links in message headers.
o Simple fix to mhtxt2022.pl for execution under Perl 5.
=======================================================================
04/18/96 (1.2.2)
o Increased the speed performance of base64 decoding. Speed
increase is much greater under Perl 4 than Perl 5.
o Added -time option to print out total CPU execution time.
Mainly used for debugging reasons (like checking on
base64 decoding times). Time information is sent to
standard error.
o Added M2H_LOCKDELAY envariable and -lockdelay option.
Either can be used to adjust the sleep time between
attempts to lock the archive.
o Added -force option to override a lock on an archive if
attempts to lock fail.
o Added image/x-bmp and image/x-pcx to the default supported
MIME types.
o Ignore "Sv:" at the beginning of subjects when sorting by
subject. "Sv:" is Danish for "Re:".
o Fixed bug in mhutil.pl where TIDXPGEND actually set
TIDXPGBEG.
o Dynamically define exclude_field routine after reading
user options. exclude_field is utilized when formatting
a message header in HTML. Defining the routine at run-time
helps reduce the regular expression overhead the old version
of the routine entailed. There should be an increase in
overall execution time.
=======================================================================
03/22/96 (1.2.1)
o Added support for x-uuencode content-transfer-encoding.
o Added -locktries command-line option.
o Added the resource variable $OUTDIR$.
o mhexternal.pl filter will use the name parameter string
on the content-type field as the anchor text to the file
if there is no content-description.
o application/x-patch is recognized and processed by the
text/plain filter (mhtxtplain.pl).
o Fixed bug in install.me and osinit.pl where setting
$'PROG caused perl to terminate if $'DIRSEP was a backslash
(occured under MS-DOS usage).
o Fixed bug in install.me in the create_dir routine.
If $DIRSEP was a backslash, the regular expression setting
@a would cause perl to abort with an error.
o Fixed database bug where the MIMEARGS resource setting
was not being stored.
o Fixed index listing bug where a reverse listing was not
correct if an index size was specified less than the
current size of the archive.
=======================================================================
03/01/96 (1.2.0)
o Rewrote message parser routine so it will work under Perl 5
for multipart messages. The rewrite also allows some
additional features that are mentioned below.
o The -mbox and -mh options are no longer required. MHonArc
will automatically determine which mode to operate in
based upon the file arguments. Hence, one can specify
MH folders and mailbox files on the same command-line.
Both options are ignored if specified.
o An HTML index of an archive contents can be generated to
standard output (-genidx).
o Message header lines not conforming to RFC 822 are ignored.
(Eg: Those pesky "From " lines should not show up anymore --
please do not confuse this with the regular "From:" lines;
note the colon vs the space).
o New resources:
BOTLINKS - May be used to completely customize
the links at the bottom of messages.
IDXPGBEGIN - Opening markup for main index page.
Allows one to redefine opening HTML
element, HEAD element, TITLE element,
opening BODY element, etc.
IDXPGEND - Closing markup for main index page.
IDXSIZE - Set the maximum number of messages
listed in index. This is different
in MAXSIZE where MAXSIZE will remove
older messages when the MAXSIZE limit
is reached in the archive.
MIMEARGS - Define arguments to filters
MSGPGBEGIN - Opening markup for message pages.
Allows one to redefine opening HTML
element, HEAD element, TITLE element,
opening BODY element, etc.
MSGPGEND - Closing markup for message pages.
NEXTBUTTON - Defines the 'Next' button.
NEXTBUTTONIA - Defines the 'Next' button when it is
inactive.
NEXTLINK - Defines the 'Next' link.
NEXTLINKIA - Defines the 'Next' link when it is
inactive.
NOTSUBSORT - Do not sort threads by subject.
OTHERINDEXES - List other resource files defining
other indexes to create when creating,
or updating, an archive.
PREVBUTTON - Defines the 'Prev' button.
PREVBUTTONIA - Defines the 'Prev' button when it is
inactive.
PREVLINK - Defines the 'Prev' link.
PREVLINKIA - Defines the 'Prev' link when it is
inactive.
TIDXPGBEGIN - Opening markup for thread index page.
Allows one to redefine opening HTML
element, HEAD element, TITLE element,
opening BODY element, etc.
TIDXPGEND - Closing markup for thread index page.
TOPLINKS - May be used to completely customize
the buttons at the top of messages.
TSUBSORT - Sort threads listed by subject.
o Removed resources:
INDEXBL, INDEXFL, MBOX, MH, NEXTBL, NEXTFL, PREVBL,
PREVFL, TINDEXBL, TINDEXFL
Resource were removed because they were no longer applicable
and/or have been superceded by other resources. MHonArc
will still honor old resource settings (where applicable) of
older archives and incorporate them into the new resource
settings.
o When specifying the resource file, mhonarc will now do
the following to determine its location:
1. If its an absolute pathname, mhonarc uses it.
2. If it is a relative pathname, mhonarc checks for
it relative to the current working directory.
3. Otherwise, mhonarc checks for it relative to
location of the archive as specified by outdir.
This resolution will allow you to place resource files with
the archive if desired (can be useful when using the
OTHERINDEXES resource element).
o Because of the new resources available, many <HR>'s are no
longer hard-coded and are controllable by resources. <HR>'s
are still used in message pages to separate message data
from mhonarc data.
o Added resource variables:
(NOTE: Some variables are only valid in certain contexts)
$DDMMYY$ - Date of message in dd/mm/yy format
$IDXSIZE$ - Max size of index list
$MMDDYY$ - Date of message in mm/dd/yy format
$MSGID$ - Message id
$NEXTBUTTON$ - Next button markup
$NEXTFROM$ - From field of next listed message
$NEXTFROMADDR$ - From e-mail address of next listed message
$NEXTFROMNAME$ - From name of next listed message
$NEXTLINK$ - Next link markup
$NEXTMSGNUM$ - Number of next listed message
$NEXTSUBJECT$ - Subject text of next listed message
$NUMOFIDXMSG$ - Number of messages in index list
$PREVBUTTON$ - Previous button markup
$PREVFROM$ - From field of previous listed message
$PREVFROMADDR$ - From e-mail address of prev listed message
$PREVFROMNAME$ - From name of previous listed message
$PREVLINK$ - Previous link markup
$PREVMSGNUM$ - Number of previous message
$PREVSUBJECT$ - Subject text of previous listed message
$YYMMDD$ - Date of message in yy/mm/dd format
o Can specify a 'U' with variable length specifier to denote
replacement string is to be used in a URL. Examples:
$SUBJECTNA:40U$
$MSGID:U$
The 'U' causes the replace text to have special characters
escaped as denoted by the URL spec. NOTE: Specify ":U"
should NOT be used in the MAILTOURL resource; the variables
will automatically be expanded according to the URL spec.
Specifyind ":U" or a length specifier in the MAILTOURL
resource will prevent mhonarc from detecting the variable.
o New command-line options:
-genidx - Generate HTML index of archive contents
to stdout.
-idxsize - Maximum number of messages shown in indexes
-notsubsort - Do not sort threads listed by subject.
-savemem - Write message data while processing
-tsubsort - Sort threads listed by subject.
o The library mhtxt2022.pl has been added that provides
a filter to process ISO-2022 (Japanese) encoded mail messages.
See mhtxt2022.pl on how to hook it in.
o The mhexternal.pl filter by default ignores any filename
specification in the message for creating derived files.
This avoids name conflicts and security problems.
The "usename" filter option may be used to override this.
o Mime filters are now called with two additional arguments:
$converted_data = &function(
$header, *parsed_header_assoc_array,
*message_data, $decoded_flag,
$optional_filter_arguments);
The $decoded_flag is set to 1 if the *message_data has been
decoded. $optional_filter_arguments contains an optional
argument string as determined by the filter.
o Mime filters can now be registered for multipart types
and message types. This allows one to override mhonarc's
conversion of these types, and completely replace mhonarc's
message->HTML conversion process.
o Mime filters should now use $'FieldSep instead of $'X for
accessing parsed message headers.
o Mime filters can be registered for a base type. Ie.
It is no longer required to explicitly list each possible
subtype if a single filter is to be used for them all.
Example:
<mimefilters>
image/*:myfilter'imagefilter:myfilter.pl
</mimefilters>
Registers "myfilter'filter" for all image data types,
regardless of subtype. However, if an explicit entry
exists for a subtype, then that filter is called.
Example:
<mimefilters>
image/*:myfilter'imagefilter:myfilter.pl
image/gif:myfilter'giffilter:myfilter.pl
</mimefilters>
"myfilter'giffilter" is called for all image/gif data.
"myfilter'imagefilter" is called for all other image data.
o A new resource, MIMEARGS, may be used to pass optional arguments
to filters to control their behavior. The format of the
argument string is controlled by the various filters. The
arguments can be specified by a specific content-type, or
for the filter routine in general. A content-type argument
will be used over any arguments specified for a filter.
Example usage:
<mimeargs>
image/gif:inline usename
m2h_external'filter:usename
</mimeargs>
See the documentation for possible arguments to filters.
o Installation program can now be invoked in batch mode.
o Thread index properly includes docurl as main index.
-nodocurl will prevent the inclusion as with the main index.
o Fixed bug in mhtxthtml.pl on properly propogating a base
URL to relative URLs starting with a "/".
o Fixed bug where single quotes, and backslashed in keys of
associative arrays in the database file were not getting
escaped.
o Fixed bug where spaces and special characters were not
properly escaped in URL strings: spaces were left as-is,
and special characters were deleted.
o Removed illegal invocation choices in the Synopsis of the
documentation.
=======================================================================
04/24/95 (1.1.1)
o Fixed bug in -scan output where month in date was off by
one.
=======================================================================
04/21/95 (1.1.0)
o Made modifications to make MHonArc suitable to run
under MS-DOS without modification. MHonArc will
automatically detect if it is running under Unix or MS-DOS.
o Added support for a thread index. MHonArc will create a
complimentary index to the main index showing message
threads.
o Archive messages can be deleted.
o A listing to stdout of an archives contents can be
generated.
o Maximum number of messages for an archive can be set.
Older messages (based on sort method) are removed
automatically during add operations.
o MHonArc will now recognize if you try to add in a message
that already exists in an archive.
o The -editdx option will now also cause a updating of all
mail messages. Guarantees resource changes to affect all
messages.
o Added the following resource file elements:
MSGFOOT -- Footer text for converted messages
MSGHEAD -- Header text for converted messages
NODOC -- Do not put link to documentation
NOTHREAD -- Do not create thread index
TFOOT -- Text at bottom of thread index page
THEAD -- Text at top of thread index page
THREAD -- Create thread index
TLEVELS -- Depth of thread listing
TLITXT -- Template text for entry in thread
index
TIDXFNAME -- Thread index filename
TINDEXBL -- Top button label in messages to
thread index
TINDEXFL -- Verbose label in message to thread
index
TTITLE -- Title of thread index page
o Added the following command-line options:
-maxsize -- Maxinum # messages in an archive
-nodoc -- Do not put link to documentation
-nothread -- Do not create thread index
-rmm -- Remove messages from an archive
-scan -- Listing of archive to stdout
-thread -- Create thread index
-tidxfname -- Thread index filename
-tlevels -- Depth of thread listing
-ttitle -- Title of thread index page
o Added the following environment variables:
M2H_MAXSIZE -- Maxinum # messages in an archive
M2H_THREAD -- If non-zero, create thread index
M2H_TIDXFNAME -- Thread index filename
M2H_TLEVELS -- Depth of thread listing
M2H_TTITLE -- Title of thread index page
o Added the following variables for template resources
(applicability of variables vary depending on the resource):
$DOCURL$ -- URL to documentation
$IDXFNAME$ -- Main index page filename
$IDXTITLE$ -- Main index page title
$NEXTMSG$ -- Next message filename
$PREVMSG$ -- Previous message filename
$PROG$ -- Program name
$TIDXFNAME$ -- Thread index page filename
$TIDXTITLE$ -- Thread index page title
$VERSION$ -- Version number of the program
o Added $FROM$, $MSGID$, and $SUBJECT$ variables to be used
in the MAILTOURL resource.
o The string `$$' in template resources will produce a `$' in
the output.
o Fixed problem with messages (with follow-ups) getting
unnecessarily updated when messages are added to an archive.
o Only a CR/LF, or LF, pair will terminate a message head.
Before, MHonArc was terminating message heads when
encountering an empty line or a line that only contained
whitespace (which was incorrect behavior).
o Fixed bug in mhexternal.pl dealing with the `name' parameter
in the content-type field. Surrounding "s or 's were not
being deleted causing filenames with quotes to be written.
o mhexternal.pl: The head of a pathname in the `name'
parameter in the content-type field is stripped off before
writing the external file. I.e. Only the base filename is
used.
o Only one <HR> after the H1 subject in messages will appear
if no message header fields are printed.
o Added recognition of the following content-types in
mhexternal.pl:
application/mac-binhex40
o Added a extras/ directory containing useful programs for
MHonArc. See README in the directory for information on
the programs contained in there.
o To support -rmm, MIME filters now return an array. The
first array value is the HTML for the message, and any other
array values are filenames of files generated by the
filter. This allows MHonArc to know of any extra files that
must be deleted when a message is removed.
o Some routines from the main mhonarc source file have been
moved into a separate librarys: readmail.pl, mhdb.pl,
mhutil.pl
o The default URL to the documentation is now,
http://www.oac.uci.edu/indiv/ehood/mhonarc.html
The old URL,
http://www.oac.uci.edu/indiv/ehood/mhonarc.doc.html
is still valid.
o There's probably other stuff, but I cannot remember.
=======================================================================
10/01/94 (1.0.0)
o First release -- See RELNOTES about compatibility issues
with mail2html.
=======================================================================
#######################################################################
=======================================================================
Earl Hood, ehood@medusa.acs.uci.edu
@(#) CHANGES 97/06/06 19:47:06 @(#)