Appendix: Resource Indexes

This appendix list resources by envariables, resource file elements, and command-line options.

Environment Variables
Resource Elements
Command-Line Options

Environment Variables

Envariable	Description
`M2H_ADDRESSMODIFYCODE`	Perl expressions modifying displayed addresses in headers.
`M2H_AFS`	Skip archive directory permission check.
`M2H_ANNOTATE`	Add/set annotation for message(s).
`M2H_ARCHIVE`	Create archive.
`M2H_AUTHSORT`	Sort main index by author.
`M2H_CHECKNOARCHIVE`	Honor "no archive" flag in messages.
`M2H_CONLEN`	Use Content-Length value.
`M2H_DATEFIELDS`	List of fields to extract date of message.
`M2H_DBFILE`	Name of archive database file.
`M2H_DECODEHEADS`	Store "decode-only" characters sets in raw form.
`M2H_DEFRCFILE`	Pathname of default resource file.
`M2H_DEFRCNAME`	Name of default resource file.
`M2H_DOC`	Add link to documentation.
`M2H_DOCURL`	URL to documentation
`M2H_EXPIREAGE`	Length of time to keep a message in an archive.
`M2H_EXPIREDATE`	Expiration of date of message.
`M2H_FOLREFS`	Print links links to explicit follow-ups and references.
`M2H_FROMFIELDS`	List of fields to extract author of a message.
`M2H_GMTDATEFMT`	Conversion specification for GMT dates.
`M2H_GZIPEXE`	Pathname to gzip executable.
`M2H_GZIPFILES`	Gzip files.
`M2H_GZIPLINKS`	Assume files are gzipped when creating links.
`M2H_HTMLEXT`	Extension to use for HTML files.
`M2H_IDXFNAME`	Filename for main (first) index page.
`M2H_IDXPREFIX`	Filename prefix for multi-page main index.
`M2H_IDXSIZE`	Size of each index page.
`M2H_LOCALDATEFMT`	Conversion specification for printing local date.
`M2H_LOCKDELAY`	Wait time between lock attempts.
`M2H_LOCKFILE`	Name of the lock file.
`M2H_LOCKMETHOD`	How archive locks are done.
`M2H_LOCKTRIES`	Total number of time to attempt a lock before failing.
`M2H_MAILTO`	Convert email addresses in message headers to hyperlinks.
`M2H_MAILTOURL`	URL template to use when MAILTO is set.
`M2H_MAIN`	Create main index.
`M2H_MAXSIZE`	Maximum number of messages in an archive.
`M2H_MHPATTERN`	Regex for matching message files in an MH folder (directory).
`M2H_MODTIME`	Set modification time on message files to message dates.
`M2H_MONTHS`	Month names.
`M2H_MONTHSABR`	Abbreviated month names.
`M2H_MSGEXCFILTER`	Perl expression(s) to selectively exclude messages.
`M2H_MSGGMTDATEFMT`	GMT conversion specification for message dates.
`M2H_MSGLOCALDATEFMT`	Local conversion specification for message dates.
`M2H_MSGPGS`	Print message pages.
`M2H_MSGPREFIX`	Prefix for message page filenames.
`M2H_MSGSEP`	Regex for matching message separator in mailbox files.
`M2H_MULTIPG`	Create multi-page indexes.
`M2H_NEWS`	Hyperlink newsgroups in message headers.
`M2H_NOSUBJECTTXT`	Raw subject text to use for messages without a subject.
`M2H_NOTEDIR`	Directory to store annotations.
`M2H_OTHERINDEXES`	List of alternate indexes to create for an archive.
`M2H_OUTDIR`	Location of archive.
`M2H_PERLINC`	Additional Perl include paths.
`M2H_POSIXSTRFTIME`	Use POSIX's strftime() for converted time format strings.
`M2H_RCFILE`	Resource file to read before processing input.
`M2H_REVERSE`	Reverse the listing order in the main index.
`M2H_SAVERESOURCES`	Save resource values in database.
`M2H_SORT`	List messages by date in main index.
`M2H_SPAMMODE`	Perform actions to deter email address harvesters.
`M2H_SUBJECTARTICLERXP`	Regex for matching leading articles in message subjects.
`M2H_SUBJECTREPLYRXP`	Regex for matching subject text denoting a reply message.
`M2H_SUBJECTSTRIPCODE`	Perl expressions to strip subject text while reading messages.
`M2H_SUBJECTTHREADS`	Check subjects when computing message threads.
`M2H_SUBSORT`	List messages by subjext in main index.
`M2H_THREAD`	Create thread index.
`M2H_TIDXFNAME`	Filename of first thread index page.
`M2H_TIDXPREFIX`	Filename prefix for thread index pages beyond the first page.
`M2H_TITLE`	Title for main index.
`M2H_TLEVELS`	Maximum number of levels to indent in thread index.
`M2H_TREVERSE`	List thread in reverse order.
`M2H_TSLICE`	Size of thread listing slice for message pages.
`M2H_TSLICELEVELS`	Maximum number of levels to indent in thread slices.
`M2H_TSORT`	List threads by date.
`M2H_TSUBSORT`	List threads by subject.
`M2H_TTITLE`	Title of thread index.
`M2H_UMASK`	Umask value for the MHonArc process.
`M2H_USELOCALTIME`	Use local time to determine day groups in main index listing.
`M2H_USINGLASTPG`	$LASTPG$ is used in resource values.
`M2H_VARREGEX`	Perl regular expression matching a resource variable.
`M2H_WEEKDAYS`	Weekday names.
`M2H_WEEKDAYSABR`	Abbreviated weekday names.

Resource Elements

Element	Description
`<ADDRESSMODIFYCODE>`	Perl expressions modifying displayed addresses in headers.
`<AUTHORBEGIN>`	Markup at the start of a author group.
`<AUTHOREND>`	Markup at the end of a author group.
`<AUTHSORT>` `<NOAUTHSORT>`	Sort main index by author.
`<BOTLINKS>`	Links markup at the bottom of message pages.
`<CHARSETCONVERTERS>`	Charater set filter functions.
`<CHECKNOARCHIVE>` `<NOCHECKNOARCHIVE>`	Honor "no archive" flag in messages.
`<CONLEN>` `<NOCONLEN>`	Use Content-Length value.
`<DATEFIELDS>`	List of fields to extract date of message.
`<DAYBEGIN>`	Markup at the start of a day group.
`<DAYEND>`	Markup at the end of a day group.
`<DECODEHEADS>` `<NODECODEHEADS>`	Store "decode-only" characters sets in raw form.
`<DEFINEDERIVED>`	Define extra file(s) to generate for each message page.
`<DEFINEVAR>`	Define a custom resource variable.
`<DOC>` `<NODOC>`	Add link to documentation.
`<DOCURL>`	URL to documentation
`<EXCS>`	List of header fields to exclude.
`<EXPIREAGE>`	Length of time to keep a message in an archive.
`<EXPIREDATE>`	Expiration of date of message.
`<FIELDORDER>`	Order to display message header fields.
`<FIELDSBEG>`	Beginning markup of message header.
`<FIELDSEND>`	Ending markup of message header.
`<FIELDSTYLES>`	Define HTML elements that wrap field text of message headers.
`<FIRSTPGLINK>`	Link markup for first page of main index.
`<FLDBEG>`	Markup before field text.
`<FLDEND>`	Markup after field text.
`<FOLREFS>` `<NOFOLREFS>`	Print links links to explicit follow-ups and references.
`<FOLUPBEGIN>`	Beginning markup of follow-up links in message pages.
`<FOLUPEND>`	Ending markup of follow-up links in message pages.
`<FOLUPLITXT>`	Markup for a follow-up link.
`<FROMFIELDS>`	List of fields to extract author of a message.
`<GMTDATEFMT>`	Conversion specification for GMT dates.
`<GZIPEXE>`	Pathname to gzip executable.
`<GZIPFILES>` `<NOGZIPFILES>`	Gzip files.
`<GZIPLINKS>` `<NOGZIPLINKS>`	Assume files are gzipped when creating links.
`<HEADBODYSEP>`	Markup separating the message head from the body.
`<HTMLEXT>`	Extension to use for HTML files.
`<ICONS>`	Content-type to icon mapping.
`<IDXFNAME>`	Filename for main (first) index page.
`<IDXLABEL>`	Label for main index.
`<IDXPGBEGIN>`	Beginning markup for main index pages.
`<IDXPGEND>`	Ending markup for main index pages.
`<IDXPGSSMARKUP>`	Markup at the beginning of all index pages.
`<IDXPREFIX>`	Filename prefix for multi-page main index.
`<IDXSIZE>`	Size of each index page.
`<INCLUDE>`	Include a resource file.
`<LABELBEG>`	Beginning markup of the label text of a message field.
`<LABELEND>`	End markup of the label text of a message field.
`<LABELSTYLES>`	Define HTML elements to wrap message header field labels.
`<LASTTPGLINK>`	Link markup for last page of main index.
`<LISTBEGIN>`	Markup to begin main index message listing.
`<LISTEND>`	Markup to end main index message listing.
`<LITEMPLATE>`	Markup for an entry in the main index message list.
`<LOCALDATEFMT>`	Conversion specification for printing local date.
`<LOCKMETHOD>`	How archive locks are done.
`<MAILTO>` `<NOMAILTO>`	Convert email addresses in message headers to hyperlinks.
`<MAILTOURL>`	URL template to use when MAILTO is set.
`<MAIN>` `<NOMAIN>`	Create main index.
`<MAXSIZE>`	Maximum number of messages in an archive.
`<MHPATTERN>`	Regex for matching message files in an MH folder (directory).
`<MIMEALTPREFS>`	Content-type preferences for `multipart/alternative` data.
`<MIMEARGS>`	Arguments to MIME filters.
`<MIMEDECODERS>`	Content-Transfer-Encoding decoding functions.
`<MIMEEXCS>`	Content-types to exclude.
`<MIMEFILTERS>`	Mapping of MIME filters to content-types.
`<MODTIME>`	Set modification time on message files to message dates.
`<MONTHS>`	Month names.
`<MONTHSABR>`	Abbreviated month names.
`<MSGBODYEND>`	Markup after the message body.
`<MSGEXCFILTER>`	Perl expression(s) to selectively exclude messages.
`<MSGFOOT>`	Markup at the foot of each message page.
`<MSGGMTDATEFMT>`	GMT conversion specification for message dates.
`<MSGHEAD>`	Markup at the head of each message page.
`<MSGIDLINK>`	Hyperlink markup for embedded message-ids in message pages.
`<MSGLOCALDATEFMT>`	Local conversion specification for message dates.
`<MSGPGBEGIN>`	Starting markup for each message page.
`<MSGPGEND>`	Ending markup for each message page.
`<MSGPGS>` `<NOMSGPGS>`	Print message pages.
`<MSGPGSSMARKUP>`	Markup at the beginning of all message pages.
`<MSGPREFIX>`	Prefix for message page filenames.
`<MSGSEP>`	Regex for matching message separator in mailbox files.
`<MULTIPG>`	Create multi-page indexes.
`<NEWS>` `<NONEWS>`	Hyperlink newsgroups in message headers.
`<NEXTBUTTON>`	Button markup for next message by main index.
`<NEXTBUTTONIA>`	Inactive button markup for next message by main index.
`<NEXTLINK>`	Link markup for next message by main index.
`<NEXTLINKIA>`	Inactive link markup for next message by main index.
`<NEXTPGLINK>`	Link markup for next page of main index.
`<NEXTPGLINKIA>`	Inactive link markup for next page of main index.
`<NOSUBJECTTXT>`	Raw subject text to use for messages without a subject.
`<NOTE>`	Markup for representing the annotation of a message.
`<NOTEDIR>`	Directory to store annotations.
`<NOTEIA>`	Markup when no annotation is available for a message.
`<OTHERINDEXES>`	List of alternate indexes to create for an archive.
`<PERLINC>`	Additional Perl include paths.
`<POSIXSTRFTIME>`	Use POSIX's strftime() for converted time format strings.
`<PREVBUTTON>`	Button markup for previous message by main index.
`<PREVBUTTONIA>`	Inactive button markup for previous message by main index.
`<PREVLINK>`	Link markup for previous message by main index.
`<PREVLINKIA>`	Inactive link markup for previous message by main index.
`<PREVPGLINK>`	Link markup for previous page of main index.
`<PREVPGLINKIA>`	Inactive link markup for previous page of main index.
`<REFSBEGIN>`	Beginning markup for explicit reference links in message pages.
`<REFSEND>`	Ending markup for explicit reference links in message pages.
`<REFSLITXT>`	Markup representing a reference entry in explicit reference links.
`<REVERSE>` `<NOREVERSE>`	Reverse the listing order in the main index.
`<SAVERESOURCES>` `<NOSAVERESOURCES>`	Save resource values in database.
`<SORT>` `<NOSORT>`	List messages by date in main index.
`<SPAMMODE>` `<NOSPAMMODE>`	Perform actions to deter email address harvesters.
`<SSMARKUP>`	Default markup at the beginning of all generated pages.
`<SUBJECTARTICLERXP>`	Regex for matching leading articles in message subjects.
`<SUBJECTBEGIN>`	Beginning markup for a subject group in the main index.
`<SUBJECTEND>`	Ending markup for a subject group in the main index.
`<SUBJECTHEADER>`	Main subject line markup above message header.
`<SUBJECTREPLYRXP>`	Regex for matching subject text denoting a reply message.
`<SUBJECTSTRIPCODE>`	Perl expressions to strip subject text while reading messages.
`<SUBJECTTHREADS>` `<NOSUBJECTTHREADS>`	Check subjects when computing message threads.
`<SUBSORT>` `<NOSUBSORT>`	List messages by subjext in main index.
`<TCONTBEGIN>`	Markup before the continuation of a broken thread.
`<TCONTEND>`	Markup after the continuation of a broken thread.
`<TEXTCLIPFUNC>`	Perl function to use for text clipping operations.
`<TFIRSTPGLINK>`	Link markup for first page of thread index.
`<TFOOT>`	Footer markup for thread index page.
`<THEAD>`	Header markup for thread index page.
`<THREAD>` `<NOTHREAD>`	Create thread index.
`<TIDXFNAME>`	Filename of first thread index page.
`<TIDXLABEL>`	Label string for the thread index.
`<TIDXPGBEGIN>`	Beginning markup for the thread index pages.
`<TIDXPGEND>`	Ending markup for the thread index pages.
`<TIDXPGSSMARKUP>`	Markup at the beginning of all thread index pages.
`<TIDXPREFIX>`	Filename prefix for thread index pages beyond the first page.
`<TIMEZONES>`	Hour offsets for timezones.
`<TINDENTBEGIN>`	Markup for opening a level when continuing a broken thread.
`<TINDENTEND>`	Markup for closing a level when continuing a broken thread.
`<TITLE>`	Title for main index.
`<TLASTTPGLINK>`	Link markup for last page of thread index.
`<TLEVELS>`	Maximum number of levels to indent in thread index.
`<TLIEND>`	Ending markup for a thread index message listing.
`<TLINONE>`	Markup for a missing message in thread index.
`<TLINONEEND>`	Ending markup for a missing message in thread index.
`<TLITXT>`	Markup for a thread index message listing.
`<TNEXTBUTTON>`	Button markup for next message by thread.
`<TNEXTBUTTONIA>`	Inactive button markup for next message by thread.
`<TNEXTINBUTTON>`	Button markup for next message within a thread.
`<TNEXTINBUTTONIA>`	Inactive button markup for next message within a thread.
`<TNEXTINLINK>`	Link markup for next message within a thread.
`<TNEXTINLINKIA>`	Inactive link markup for next message within a thread.
`<TNEXTLINK>`	Link markup for next message by thread.
`<TNEXTLINKIA>`	Inactive link markup for next message by thread.
`<TNEXTPGLINK>`	Link markup for next page in thread index.
`<TNEXTPGLINKIA>`	Inactive link markup for next page in thread index.
`<TNEXTTOPBUTTON>`	Button markup for first message in the next thread.
`<TNEXTTOPBUTTONIA>`	Inactive button markup for first message in the next thread.
`<TNEXTTOPLINK>`	Link markup for first message in the next thread.
`<TNEXTTOPLINKIA>`	Inactive link markup for first message in the next thread.
`<TOPLINKS>`	Markup for top navigational links of a message page.
`<TPREVBUTTON>`	Button markup for previous message by thread.
`<TPREVBUTTONIA>`	Inactive button markup for previous message by thread.
`<TPREVINBUTTON>`	Button markup for previous message within a thread.
`<TPREVINBUTTONIA>`	Inactive button markup for previous message within a thread.
`<TPREVINLINK>`	Link markup for previous message within a thread.
`<TPREVINLINKIA>`	Inactive link markup for previous message within a thread.
`<TPREVLINK>`	Link markup for previous message by thread.
`<TPREVLINKIA>`	Inactive link markup for previous message by thread.
`<TPREVPGLINK>`	Link markup for previous page in thread index.
`<TPREVPGLINKIA>`	Inactive link markup for previous page in thread index.
`<TPREVTOPBUTTON>`	Button markup for first message in the previous thread.
`<TPREVTOPBUTTONIA>`	Inactive button markup for first message in the previous thread.
`<TPREVTOPLINK>`	Link markup for first message in the previous thread.
`<TPREVTOPLINKIA>`	Inactive link markup for first message in the previous thread.
`<TREVERSE>` `<NOTREVERSE>`	List thread in reverse order.
`<TSINGLETXT>`	Markup for a thread listing with no follow-ups.
`<TSLICE>`	Size of thread listing slice for message pages.
`<TSLICEBEG>`	Markup for the start of a thread slice.
`<TSLICECONTBEGIN>`	Thread slice markup before the continuation of a broken thread.
`<TSLICECONTEND>`	Thread slice markup after the continuation of a broken thread.
`<TSLICEEND>`	Markup for the end of a thread slice.
`<TSLICEINDENTBEGIN>`	Thread slice markup for opening a level when continuing a broken thread.
`<TSLICEINDENTEND>`	Thread slice markup for closing a level when continuing a broken thread.
`<TSLICELEVELS>`	Maximum number of levels to indent in thread slices.
`<TSLICELIEND>`	Ending markup for a thread slice message listing.
`<TSLICELIENDCUR>`	Ending markup for a thread slice message listing if current message.
`<TSLICELINONE>`	Thread slice markup for a missing message in thread slice.
`<TSLICELINONEEND>`	Ending markup for a missing message in thread slice.
`<TSLICELITXT>`	Markup for a thread slice message listing.
`<TSLICELITXTCUR>`	Markup for a thread slice message listing if current message.
`<TSLICESINGLETXT>`	Markup for a thread slice listing with no follow-ups.
`<TSLICESINGLETXTCUR>`	Markup for a thread slice listing with no follow-ups if current message.
`<TSLICESUBJECTBEG>`	Markup before a subject based thread slice listing.
`<TSLICESUBJECTEND>`	Markup after a subject based thread slice listing.
`<TSLICESUBLISTBEG>`	Thread slice markup for starting a sub-thread.
`<TSLICESUBLISTEND>`	Thread slice markup for ending a sub-thread.
`<TSLICETOPBEGIN>`	Thread slice markup for the root/start of a thread.
`<TSLICETOPBEGINCUR>`	Thread slice markup for the root/start of a thread if current message.
`<TSLICETOPEND>`	Thread slice markup for the end of a thread.
`<TSLICETOPENDCUR>`	Thread slice markup for the end of a thread if current message.
`<TSORT>` `<NOTSORT>`	List threads by date.
`<TSUBJECTBEG>`	Markup before a subject based thread listing.
`<TSUBJECTEND>`	Markup after a subject based thread listing.
`<TSUBLISTBEG>`	Markup for starting a sub-thread.
`<TSUBLISTEND>`	Markup for ending a sub-thread.
`<TSUBSORT>` `<NOTSUBSORT>`	List threads by subject.
`<TTITLE>`	Title of thread index.
`<TTOPBEGIN>`	Markup for the root/start of a thread.
`<TTOPEND>`	Markup for the end of a thread.
`<UMASK>`	Umask value for the MHonArc process.
`<USELOCALTIME>` `<NOUSELOCALTIME>`	Use local time to determine day groups in main index listing.
`<USINGLASTPG>` `<NOUSINGLASTPG>`	$LASTPG$ is used in resource values.
`<WEEKDAYS>`	Weekday names.
`<WEEKDAYSABR>`	Abbreviated weekday names.

Command-Line Options

Option	Description
`-add`	Add messages to the archive.
`-addressmodifycode`	Perl expressions modifying displayed addresses in headers.
`-afs`	Skip archive directory permission check.
`-annotate`	Add/set annotation for message(s).
`-archive` `-noarchive`	Create archive.
`-authsort` `-noauthsort`	Sort main index by author.
`-checknoarchive` `-nochecknoarchive`	Honor "no archive" flag in messages.
`-conlen` `-noconlen`	Use Content-Length value.
`-datefields`	List of fields to extract date of message.
`-dbfile`	Name of archive database file.
`-decodeheads` `-nodecodeheads`	Store "decode-only" characters sets in raw form.
`-definevar`	Define a custom resource variable.
`-doc` `-nodoc`	Add link to documentation.
`-docurl`	URL to documentation
`-editidx`	Modify archive with new resource settings.
`-expireage`	Length of time to keep a message in an archive.
`-expiredate`	Expiration of date of message.
`-folrefs` `-nofolrefs`	Print links links to explicit follow-ups and references.
`-force`	Force archive operation even if lock cannot be obtained.
`-fromfields`	List of fields to extract author of a message.
`-genidx`	Generate a message index to standard output.
`-gmtdatefmt`	Conversion specification for GMT dates.
`-gzipexe`	Pathname to gzip executable.
`-gzipfiles` `-nogzipfiles`	Gzip files.
`-gziplinks` `-nogziplinks`	Assume files are gzipped when creating links.
`-htmlext`	Extension to use for HTML files.
`-idxfname`	Filename for main (first) index page.
`-idxprefix`	Filename prefix for multi-page main index.
`-idxsize`	Size of each index page.
`-keeponrmm`	Do not physically delete message files when message removed from archive.
`-localdatefmt`	Conversion specification for printing local date.
`-lock` `-nolock`	Perform a lock on the archive.
`-lockdelay`	Wait time between lock attempts.
`-lockfile`	Name of the lock file.
`-lockmethod`	How archive locks are done.
`-locktries`	Total number of time to attempt a lock before failing.
`-mailto`	Convert email addresses in message headers to hyperlinks.
`-mailtourl`	URL template to use when MAILTO is set.
`-main`	Create main index.
`-maxsize`	Maximum number of messages in an archive.
`-mhpattern`	Regex for matching message files in an MH folder (directory).
`-modtime`	Set modification time on message files to message dates.
`-months`	Month names.
`-monthsabr`	Abbreviated month names.
`-msgexcfilter`	Perl expression(s) to selectively exclude messages.
`-msggmtdatefmt`	GMT conversion specification for message dates.
`-msglocaldatefmt`	Local conversion specification for message dates.
`-msgpgs` `-nomsgpgs`	Print message pages.
`-msgprefix`	Prefix for message page filenames.
`-msgsep`	Regex for matching message separator in mailbox files.
`-multipg`	Create multi-page indexes.
`-news`	Hyperlink newsgroups in message headers.
`-nosubjecttxt`	Raw subject text to use for messages without a subject.
`-notedir`	Directory to store annotations.
`-notetext`	Annotation text.
`-otherindexes`	List of alternate indexes to create for an archive.
`-outdir`	Location of archive.
`-perlinc`	Additional Perl include paths.
`-posixstrftime`	Use POSIX's strftime() for converted time format strings.
`-quiet`	Do not output status.
`-rcfile`	Resource file to read before processing input.
`-reverse` `-noreverse`	Reverse the listing order in the main index.
`-rmm`	Remove specified messages from an archive.
`-saveresources` `-nosaveresources`	Save resource values in database.
`-scan`	List archive messages to standard output.
`-single`	Process a single message.
`-sort`	List messages by date in main index.
`-spammode` `-nospammode`	Perform actions to deter email address harvesters.
`-stderr`	File for standard error messages.
`-stdin`	File to treat as standard input.
`-stdout`	File for standard output messages.
`-subjectarticlerxp`	Regex for matching leading articles in message subjects.
`-subjectreplyrxp`	Regex for matching subject text denoting a reply message.
`-subjectstripcode`	Perl expressions to strip subject text while reading messages.
`-subjectthreads` `-nosubjectthreads`	Check subjects when computing message threads.
`-subsort`	List messages by subjext in main index.
`-thread`	Create thread index.
`-tidxfname`	Filename of first thread index page.
`-tidxprefix`	Filename prefix for thread index pages beyond the first page.
`-title`	Title for main index.
`-tlevels`	Maximum number of levels to indent in thread index.
`-treverse`	List thread in reverse order.
`-tslice`	Size of thread listing slice for message pages.
`-tslicelevels`	Maximum number of levels to indent in thread slices.
`-tsort` `-notsort`	List threads by date.
`-tsubsort` `-notsubsort`	List threads by subject.
`-ttitle`	Title of thread index.
`-umask`	Umask value for the MHonArc process.
`-varregex`	Perl regular expression matching a resource variable.
`-weekdays`	Weekday names.
`-weekdaysabr`	Abbreviated weekday names.

$Date: 2002/07/27 05:13:10 $