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GROFF_MM(7)							   GROFF_MM(7)

NAME
       groff_mm - groff mm macros

SYNOPSIS
       groff -mm [ options...  ] [ files...  ]

DESCRIPTION
       The  groff  mm  macros  are  intended  to be compatible with the DWB mm
       macros with the following limitations:

       ·      no Bell Labs localisms implemented.

       ·      the macros OK and PM is not implemented.

       ·      groff mm does not support cut marks

       mm is intended to be international. Therefore it is possible  to	 write
       short  national	macrofiles  which  change all english text to the pre‐
       ferred language. Use mmse as an example.

       A file called locale or lang_locale is read after the initiation of the
       global  variables. It is therefore possible to localize the macros with
       companyname and so on.

       In this manual square brackets is used to show optional arguments.

       Number registers and strings
       Many macros can be controlled by number registers and strings.  A  num‐
       ber register is assigned with the nr command:
       .nr XXX [+-]n [i]
       XXX  is	the name of the register, n is the value to be assigned, and i
       is increment value for auto-increment.  n can have a plus or minus sign
       as  prefix if an increment or decrement of the current value is wanted.
       (Auto-increment or decrement occurs if the number register is used with
       a plus or minus sign, \n+[XXX] or \n-[XXX].)

       Strings is defined with ds.
       .ds YYY string
       The  string is assigned everything to the end of the line, even blanks.
       Initial blanks in  string  should  be  prefixed	with  a	 double-quote.
       (Strings are used in the text as \*[YYY].)

       Special formatting of number registers
       A  number  register is printed with normal digits if no format has been
       given.  Set the format with af:
       .af R c
       R is the name of the register, c is the format.
       Form Sequence
       1    0, 1, 2, 3, ...
       001  000, 001, 002, 003, ...
       i    0, i, ii, iii, iv, ...
       I    0, I, II, III, IV, ...
       a    0, a, b, c, ..., z, aa, ab, ...
       A    0, A, B, C, ..., Z, AA, AB, ...

       Macros:

       )E level text
	      Adds text (heading-text) to the table  of	 contents  with	 level
	      either  0	 or  between  1-7. See also .H. This macro is used for
	      customized table of contents.

       1C [1] Begin one column processing. An 1 as argument disables the page-
	      break.  Use wide footnotes, small footnotes may be overprinted.

       2C     Begin  two column processing. Splits the page in two columns. It
	      is a special case of MC. See also 1C.

       AE     Abstract end, see AS.

       AF [name of firm]
	      Authors firm, should be called before AU, see also COVER.

       AL [type [text-indent [1]]]
	      Start autoincrement list. Items are numbered beginning  on  one.
	      The type argument controls the type of numbers.
	      Arg  Description
	      1	   Arabic (the default)
	      A	   Upper-case letters (A-Z)
	      a	   Lower-case letters (a-z)
	      I	   Upper-case roman
	      i	   Lower-case roman
	      Text-indent  sets the indent and overrides Li.  A third argument
	      will prohibit printing of a blank line before each item.

       APP name text
	      Begin an appendix with name name.	 Automatic  naming  occurs  if
	      name  is	"".  The appendixes starts with A if auto is used.  An
	      new page is ejected, and a header is also produced if the number
	      variable	Aph  is	 non-zero.  This is the default.  The appendix
	      always appear in the 'List of contents' with correct pagenumber.
	      The  name	 APPENDIX  can be changed by setting the string App to
	      the desired text.	 The string Apptxt contains the current appen‐
	      dix text.

       APPSK name pages text
	      Same as .APP, but the pagenr is incremented with pages.  This is
	      used when diagrams or other non-formatted documents are included
	      as appendixes.

       AS [arg [indent]]
	      Abstract	start.	Indent	is  specified in 'ens', but scaling is
	      allowed.	Argument arg controls where the abstract is printed.
	      Arg  Placement
	      0	   Abstract will be printed on page 1 and on the  cover	 sheet
		   if  used  in	 the released-paper style (MT 4), otherwise it
		   will be printed on page 1 without a cover sheet.
	      1	   Abstract will only be printed on  the  cover	 sheet	(MT  4
		   only).
	      2	   Abstract  will  be  printed	only on the cover sheet (other
		   than MT 4 only).  The cover sheet is printed	 without  need
		   for CS.
	      Abstract	is not printed at all in external letters (MT 5).  The
	      indent controls the indentation of both margins, otherwise  will
	      normal text indent be used.

       AST [title]
	      Abstract	title.	Default	 is ABSTRACT.  Sets the text above the
	      abstract text.

       AT title1 [title2 ...]
	      Authors title. AT must appear just after	each  AU.   The	 title
	      will show up after the name in the signature block.

       AU [name [initials [loc [dept [ext [room [arg [arg [arg]]]]]]]]]
	      Author  information,  specifies the author of the memo or paper,
	      and will be printed on the cover	sheet  and  on	other  similar
	      places.	AU  must  not appear before TL. The author information
	      can contain initials, location, department, telephone extension,
	      room number or name and up to three extra arguments.

       AV [name [1]]
	      Approval	signature,  generates  an approval line with place for
	      signature and date. The string APPROVED:	can  be	 changed  with
	      variable Letapp, and the string Date in Letdate.

       AVL [name]
	      Letter signature, generates a line with place for signature.

       B [bold-text [prev-font-text [bold...]]]
	      Begin boldface.  No limit on the number of arguments.  All argu‐
	      ments will be concatenated to one word, the first, third and  so
	      on will be printed in boldface.

       B1     Begin  box  (as the ms macro).  Draws a box around the text. The
	      text will be indented one character, and the right  margin  will
	      be one character shorter.

       B2     End box. Finish the box started by B1.

       BE     End bottom block, see BS.

       BI [bold-text [italic-text [bold-text [...]]]]
	      Bold-italic.  No limit on the number of arguments, see B.

       BL [text-indent [1]]
	      Start  bullet  list, initialize a list with a bullet and a space
	      in the beginning of each list item (see LI).  Text-indent	 over‐
	      rides  the  default  indentation of the list items set by number
	      register Pi.  A third argument will prohibit printing of a blank
	      line before each item.

       BR [bold-text [roman-text [bold-text [...]]]]
	      Bold-roman.  No limit on the number of arguments.

       BS     Bottom  block start. Begins the definition of a text block which
	      is printed at the bottom of each page. Block ends with BE.

       BVL text-indent [mark-indent [1]]
	      Start of broken variable-item list.  Broken  variable-item  list
	      has  no fixed mark, it assumes that every LI has a mark instead.
	      The text will always begin at the	 next  line  after  the	 mark.
	      Text-indent  sets	 the  indent  to the text, and mark-indent the
	      distance from the current indent to the mark.  A third  argument
	      will prohibit printing of a blank line before each item.

       COVER [arg]
	      COVER  begins  a	coversheet  definition.	 It  is important that
	      .COVER appears before any normal text.  .COVER uses arg to build
	      the    filename	/usr/local/share/groff/1.17.2/tmac/mm/arg.cov.
	      Therefore it is possible to create  unlimited  types  of	cover‐
	      sheets.	ms.cov	is  supposed  to  look like the ms coversheet.
	      .COVER requires a .COVEND at the	end  of	 the  coverdefinition.
	      Always use this order of the covermacros:
	      .COVER
	      .TL
	      .AF
	      .AU
	      .AT
	      .AS
	      .AE
	      .COVEND
	      However, only .TL and .AU are required.

       COVEND This finish the cover description and prints the cover-page.  It
	      is defined in the cover file.

       DE     Display end. Ends a block of text, display, that begins with  DS
	      or DF.

       DF [format [fill [rindent]]]
	      Begin floating display (no nesting allowed).  A floating display
	      is saved in a queue and is printed in the order entered. Format,
	      fill  and	 rindent  is the same as in DS.	 Floating displays are
	      controlled by the two number registers De and Df.

	      De register
	      0	   Nothing special, this is the default.
	      1	   A page eject will occur after each printed display,	giving
		   only one display per page and no text following it.

	      Df register
	      0	   Displays  are printed at the end of each section (when sec‐
		   tion-page numbering is active) or at the end of  the	 docu‐
		   ment.
	      1	   A  new display will be printed on the current page if there
		   is enough space, otherwise it will be printed at the end of
		   the document.
	      2	   One display will be printed at the top of each page or col‐
		   umn (in multi-column mode).
	      3	   Print one display if there is enough space for  it,	other‐
		   wise it will be printed at the top of the next page or col‐
		   umn.
	      4	   Print as many displays that will fit in a new page or  col‐
		   umn.	 A page break will occur between each display if De is
		   not zero.
	      5	   Fill the current page with displays and the rest  beginning
		   at  a  new  page  or column. (This is the default.)	A page
		   break will occur between each display if De is not zero.

       DL [text-indent [1 [1]]]
	      Dash list start. Begins a list where each item is printed	 after
	      a	 dash. Text-indent changes the default indentation of the list
	      items set by number register Pi.	A second argument prevents the
	      empty  line  between  each  list	item to be printed. See LI.  A
	      third argument will prohibit printing of	a  blank  line	before
	      each item.

       DS [format [fill [rindent]]]
	      Static  display start.  Begins collection of text until DE.  The
	      text is printed together on the same page, unless it  is	longer
	      than  the	 height	 of the page.  DS can be nested to a unlimited
	      depth (reasonably :-).

	      format
	      ""   No indentation.
	      none No indentation.
	      L	   No indentation.
	      I	   Indent text with the value of number register Si.
	      C	   Center each line
	      CB   Center the whole display as a block.
	      R	   Right adjust the lines.
	      RB   Right adjust the whole display as a block

	      L, I, C and CB can also be specified as 0, 1, 2 or 3 for compat‐
	      ibility reasons. (Don't use it. :-)

	      fill
	      ""   Line-filling turned off.
	      none Line-filling turned off.
	      N	   Line-filling turned off.
	      F	   Line-filling turned on.

	      N	 and  F	 can  also be specified as 0 or 1.  An empty line will
	      normally be printed before and after the display. Setting number
	      register	Ds  to 0 will prevent this.  Rindent shortens the line
	      length by that amount.

       EC [title [override [flag [refname]]]]
	      Equation title.  Sets a title  for  an  equation.	 The  override
	      argument change the numbering.

	      flag
	      none override is a prefix to the number.
	      0	   override is a prefix to the number.
	      1	   override is a suffix to the number.
	      2	   override replaces the number.
	      EC  uses	the  number register Ec as counter.  It is possible to
	      use .af to change the format of the number.  If number  register
	      Of  is  1, then the format of title will use a dash instead of a
	      dot after the number.
	      The string Le controls the  title	 of  the  List	of  Equations,
	      default  is  LIST OF EQUATIONS.  The List of Equations will only
	      be printed if number register Le is 1, default  0.   The	string
	      Liec contains the word Equation, wich is printed before the num‐
	      ber.  If refname is used, then the equation number is saved with
	      .SETR, and can be retrieved with .GETST refname.
	      Special  handling	 of  the title will occur if EC is used inside
	      DS/DE, it will not be affected by the format of DS.

       EF [arg]
	      Even-page footer, printed just above the normal page  footer  on
	      even pages, see PF.

       EH [arg]
	      Even-page	 header,  printed just below the normal page header on
	      even pages, see PH.

       EN     Equation end, see EQ.

       EOP    End of page  user-defined	 macro.	 This  macro  will  be	called
	      instead  of the normal printing of the footer. The macro will be
	      executed in a separate environment, without any trap active. See
	      TP.

	      Strings available to EOP
	      EOPf Argument from PF.
	      EOPefArgument from EF.
	      EOPofArgument from OF.

       EPIC width height [name]
	      EPIC  draws  a box with the given width and height, it will also
	      print the text name or a default string if name  is  not	speci‐
	      fied..  This is used to include external pictures, just give the
	      size of the picture.  See PIC

       EQ [label]
	      Equation start.  EQ/EN are the delimiters for equations  written
	      for  eqn.	  EQ/EN must be inside a DS/DE-pair, except when EQ is
	      only used to set options in eqn.	The label will appear  at  the
	      right  margin  of	 the equation, unless number register Eq is 1.
	      Then the label will appear at the left margin.

       EX [title [override [flag [refname]]]]
	      Exhibit title, arguments are the same as for EC.	 EX  uses  the
	      number register Ex as counter.  The string Lx controls the title
	      of the List of Exhibits, default is LIST OF EXHIBITS.  The  List
	      of  Exhibits  will  only	be printed if number register Lx is 1,
	      default 1.  The string Liex contains the word Exhibit, which  is
	      printed before the number.  If refname is used, then the exhibit
	      number is saved with .SETR, and can  be  retrieved  with	.GETST
	      refname.
	      Special  handling	 of  the title will occur if EX is used inside
	      DS/DE, it will not be affected by the format of DS.

       FC [closing]
	      Prints Yours very truly, as a formal closing of a letter or mem‐
	      orandum.	The argument replaces the defualt string.  The default
	      is stored in string variable Letfc.

       FD [arg [1]]
	      Footnote default format.	 Controls  the	hyphenation  (hyphen),
	      right  margin  justification  (adjust),  indentation of footnote
	      text (indent).  It  can  also  change  the  label	 justification
	      (ljust).

	      arg  hyphen  adjust  indent  ljust
	      0	   no	   yes	   yes	   left
	      1	   yes	   yes	   yes	   left
	      2	   no	   no	   yes	   left
	      3	   yes	   no	   yes	   left
	      4	   no	   yes	   no	   left
	      5	   yes	   yes	   no	   left
	      6	   no	   no	   no	   left
	      7	   yes	   no	   no	   left
	      8	   no	   yes	   yes	   right
	      9	   yes	   yes	   yes	   right
	      10   no	   no	   yes	   right
	      11   yes	   no	   yes	   right

	      Argument	greater	 than  or  equal to 11 is considered as arg 0.
	      Default for mm is 10.

       FE     Footnote end.

       FG [title [override [flag [refname]]]]
	      Figure title, arguments are the same as for  EC.	 FG  uses  the
	      number register Fg as counter.  The string Lf controls the title
	      of the List of Figures, default is LIST OF FIGURES.  The List of
	      Figures will only be printed if number register Lf is 1, default
	      1.  The string Lifg contains the word Figure,  wich  is  printed
	      before  the  number.  If refname is used, then the figure number
	      is saved with .SETR, and can be retrieved with .GETST refname.
	      Special handling of the title will occur if FG  is  used	inside
	      DS/DE, it will not be affected by the format of DS.

       FS [label]
	      Footnote	start.	The footnote is ended by FE. Footnotes is nor‐
	      mally automatically numbered, the number is available in	string
	      F.  Just add \*F in the text. By adding label, it is possible to
	      have other number or names on the footnotes.  Footnotes in  dis‐
	      plays  is	 now possible.	An empty line separates footnotes, the
	      height of the line is controlled by number register Fs,  default
	      value is 1.

       GETHN refname [varname]
	      Includes	the  headernumber where the corresponding SETR refname
	      was placed. Will be X.X.X. in pass 1. See INITR.	If varname  is
	      used, GETHN sets the stringvariable varname to the headernumber.

       GETPN refname [varname]
	      Includes the pagenumber where the corresponding SETR refname was
	      placed. Will be 9999 in pass 1. See INITR.  If varname is	 used,
	      GETPN sets the stringvariable varname to the pagenumber.

       GETR refname
	      Combines	GETHN  and GETPN with the text 'chapter' and ', page'.
	      The string Qrf contains the text for reference:
		   .ds Qrf See chapter \\*[Qrfh], page \\*[Qrfp].
	      Qrf may be changed to support other languages.  Strings Qrfh and
	      Qrfp are set by GETR and contains the page and headernumber.

       GETST refname [varname]
	      Includes	the  string  saved  with the second argument to .SETR.
	      Will be dummystring in pass 1.  If varname is used,  GETST  sets
	      the stringvariable varname to the saved string. See INITR.

       H level [heading-text [heading-suffix]]
	      Numbered	section	 heading.   Section  headers  can have a level
	      between 1 and 7, level 1 is the top level. The text is given  in
	      heading-text, and must be surrounded by double quotes if it con‐
	      tains spaces.  Heading-suffix is added to the header in the text
	      but  not	in  the	 table	of contents. This is normally used for
	      footnote marks and similar things. Don't use \*F in heading-suf‐
	      fix, it won't work. A manual label must be used, see FS.

	      An eventual paragraph, P, directly after H will be ignored, H is
	      taking care of spacing and indentation.

	      Page ejection before heading
	      Number register Ej controls page ejection	 before	 the  heading.
	      Normally,	 a  level  one heading gets two blank lines before it,
	      higher levels gets only one. A new page is ejected  before  each
	      first-level  heading  if	number	register  Ej is 1.  All levels
	      below or equal the value of Ej gets a new page.	Default	 value
	      for Ej is 0.

	      Heading break level
	      A	 line  break  occurs after the heading if the heading level is
	      less or equal to number register Hb.  Default value 2.

	      Heading space level
	      A blank line is inserted after the heading if the heading	 level
	      is less or equal to number register Hs.  Default value 2.

	      Text  will  follow  the heading on the same line if the level is
	      greater than both Hb and Hs.

	      Post-heading indent
	      Indentation of the text after the heading is controlled by  num‐
	      ber register Hi, default value 0.

	      Hi
	      0	   The text will be left-justified.
	      1	   Indentation	of  the	 text  will follow the value of number
		   register Pt, see P.
	      2	   The text will be lined up with the first word of the	 head‐
		   ing.

	      Centered section headings
	      All  headings  whose  level is equal or below number register Hc
	      and also less than or equal to Hb or Hs is centerered.

	      Font control of the heading
	      The font of each heading level is controlled by string  HF.   It
	      contains	a  fontnumber  or  fontname for each level. Default is
	      2 2 2 2 2 2 2 (all headings in italic).  Could also  be  written
	      as I I I I I I I.	 All omitted values are presumed to be a 1.

	      Point size control.
	      String  HP  controls  the pointsize of each heading, in the same
	      way as HF controls the font.  A value of 0 selects  the  default
	      point  size.   Default  value is 0 0 0 0 0 0 0. Beware that only
	      the point size changes, not the vertical size.  That can be con‐
	      trolled by the user specified macro HX and/or HZ.

	      Heading counters
	      Seven  number  registers,	 named H1 thru H7 contains the counter
	      for each heading level.  The values  are	printed	 using	arabic
	      numerals,	 this  can  be	changed with the macro HM (see below).
	      All marks are concatenated before printing. To avoid  this,  set
	      number  register Ht to 1. That will only print the current head‐
	      ing counter at each heading.

	      Automatic table of contents
	      All headings whose level is equal or below number register Cl is
	      saved  to	 be printed in the table of contents. Default value is
	      2.

	      Special control of the heading, user-defined macros.
	      These macros can be defined by the user to get a	finer  control
	      of vertical spacing, fonts or other features.  Argument level is
	      the level-argument to H, but 0 for unnumbered headings (see HU).
	      Argument	rlevel is the real level, it is set to number register
	      Hu for unnumbered headings.  Argument heading-text is  the  text
	      argument to H and HU.

	      HX level rlevel heading-text
	      HX  is called just before the printing of the heading.  The fol‐
	      lowing register is available for HX.  HX may alter  }0,  }2  and
	      ;3.
	      string }0
		   Contains the heading mark plus two spaces if rlevel is non-
		   zero, otherwise empty.
	      register ;0
		   Contains the position of the text  after  the  heading.   0
		   means  that	the text should follow the heading on the same
		   line, 1 means that a line break  should  occur  before  the
		   text	 and  2	 means	that  a blank line should separate the
		   heading and the text.
	      string }2
		   Contains two spaces if register ;0 is 0. It is used to sep‐
		   arate  the heading from the text. The string is empty if ;0
		   is non-zero.
	      register ;3
		   Contains the needed	space  in  units  after	 the  heading.
		   Default is 2v.

		   Can	be used to change things like numbering (}0), vertical
		   spacing (}2) and the needed space after the heading.

	      HY dlevel rlevel heading-text
	      HY is called after size and font calculations and might be  used
	      to change indentation.

	      HZ dlevel rlevel heading-text
	      HZ is called after the printing of the heading, just before H or
	      HU exits.	 Could be used to change the page header according  to
	      the section heading.

       HC [hyphenation-character]
	      Set  hyphenation character.  Default value is \%.	 Resets to the
	      default if called without argument.  Hyphenation can  be	turned
	      off  by  setting number register Hy to 0 in the beginning of the
	      file.

       HM [arg1 [arg2 [... [arg7]]]]
	      Heading mark style.  Controls the type of marking	 for  printing
	      of the heading counters.	Default is 1 for all levels.

	      Argument
	      1	   Arabic numerals.
	      0001 Arabic numerals with leading zeroes, one or more.
	      A	   Upper-case alphabetic
	      a	   Lower-case alphabetic
	      I	   Upper-case roman numerals
	      i	   lower-case roman numerals
	      emptyArabic numerals.

       HU heading-text
	      Unnumbered  section  header.  HU behavies like H at the level in
	      number register Hu.  See H.

       HX dlevel rlevel heading-text
	      Userdefined heading  exit.   Called  just	 before	 printing  the
	      header.  See H.

       HY dlevel rlevel heading-text
	      Userdefined  heading  exit.   Called  just  before  printing the
	      header.  See H.

       HZ dlevel rlevel heading-text
	      Userdefined  heading  exit.   Called  just  after	 printing  the
	      header.  See H.

       I [italic-text [prev-font-text [italic-text [...]]]]
	      Italic.  Changes the font to italic if called without arguments.
	      With one argument it will set the	 word  in  italic.   With  two
	      argument	it  will  concatenate  them  and set the first word in
	      italic and the second in the previous font.  There is  no	 limit
	      on the number of argument, all will be concatenated.

       IA [addressee-name [title]]
	      Begins specification of the addressee and addressee's address in
	      letter style.  Several names can be specified with empty	IA/IE-
	      pairs, but only one address.  See LT.

       IB [italic-text [bold-text [italic-text [...]]]]
	      Italic-bold.   Even arguments is printed in italic, odd in bold‐
	      face.  See I.

       IE     Ends the address-specification after IA.

       INITI type filename [macro]
	      Initialize the new index system, sets the	 filename  to  collect
	      index  lines  in	with  IND.  Argument  type selects the type of
	      index, page number, header marks or both.	 The default is N.

	      It is also possible to create a macro that  is  responsible  for
	      formatting  each	row.  Add the name of the macro as argument 3.
	      The macro will be called with the index as argument(s).

	      type
	      N	   Page numbers
	      H	   Header marks
	      B	   Both page numbers and header marks, tab separated

       INITR filename
	      Initialize the refencemacros.  References	 will  be  written  to
	      filename.tmp  and	 filename.qrf. Requires two passes with groff.
	      The first looks for references and  the  second  includes	 them.
	      INITR can be used several times, but it is only the first occur‐
	      rence of INITR that is active.  Option -U	 might	be  needed  if
	      unsafe-errors occur.  See also SETR, GETPN and GETHN.

       IND arg1 [arg2 [...]]
	      IND  writes  a line in the index file selected by INITI with all
	      arguments and the page number or header mark separated by tabs.
		   Examples
		   arg1\tpage number
		   arg1\targ2\tpage number
		   arg1\theader mark
		   arg1\tpage number\theader mark

       INDP   INDP prints the index by running the command specified by string
	      variable Indcmd, normally sort -t\t.  INDP reads the output from
	      the command to form the index, normally in two columns  (can  be
	      changed  by  defining  TYIND).  The index is printed with string
	      variable Index as header, default is INDEX. One-column  process‐
	      ing  is returned after the list. INDP will call the user-defined
	      macros TXIND, TYIND and  TZIND  if  defined.   TXIND  is	called
	      before  printing	INDEX,	TYIND  is  called  instead of printing
	      INDEX. TZIND is called after the printing and should  take  care
	      of restoring to normal operation again.

       ISODATE [0]
	      ISODATE  changes the predefined date string in DT to ISO-format,
	      ie YYYY-MM-DD. This can also be done by adding  -rIso=1  on  the
	      command line.  Reverts to old date format if argument is 0.

       IR [italic-text [roman-text [italic-text [...]]]]
	      Italic-roman.   Even  arguments  is  printed  in	italic, odd in
	      roman.  See I.

       LB text-indent mark-indent pad type [mark [LI-space [LB-space]]]
	      List begin macro.	 This is the common macro used for all	lists.
	      Text-indent  is the number of spaces to indent the text from the
	      current indent.

	      Pad and mark-indent controls where to put the mark.  The mark is
	      placed  within the mark area, and mark-indent sets the number of
	      spaces before this area. It is normally 0.  The mark  area  ends
	      where the text begins. The start of the text is still controlled
	      by text-indent.

	      The mark is left justified whitin the mark area if pad is 0.  If
	      pad is greater than 0, then mark-indent is ignored, and the mark
	      is placed pad spaces before the text.  This will	right  justify
	      the mark.

	      If  type	is 0 the list will have either a hanging indent or, if
	      argument mark is given, the string mark as mark.

	      If type is greater than 0 automatic numbering will occur, arabic
	      if mark is empty. Mark can then be any of 1, A, a, I or i.

	      Type selects one of six possible ways to display the mark.
	      type
	       1    x.
	       2    x)
	       3    (x)
	       4    [x]
	       5    <x>
	       6    {x}

	      Every  item  in the list will get LI-space number of blank lines
	      before them. Default is 1.

	      LB itself will print LB-space blank lines. Default is 0.

       LC [list-level]
	      List-status clear.  Terminates all current active lists down  to
	      list-level,  or  0 if no argmuent is given. This is used by H to
	      clear any active list.

       LE [1] List end.	 Terminate the current list. LE outputs a  blank  line
	      if an argument is given.

       LI [mark [1]]
	      List  item  precedes  every  item in a list. Without argument LI
	      will print the mark determined by the current list type. By giv‐
	      ing  LI one argument, it will use that as the mark instead.  Two
	      arguments to LI will make mark a prefix  to  the	current	 mark.
	      There  will  be  no  separating space between the prefix and the
	      mark if the second argument is 2 instead of 1.   This  behaviour
	      can  also	 be achieved by setting number register Limsp to zero.
	      A zero length mark will make a hanging indent instead.

	      A blank line is normally printed before the list item. This  be‐
	      haviour  can  be	controlled  by number register Ls. Pre-spacing
	      will occur for  each  list-level	less  than  or	equal  to  Ls.
	      Default value is 99. (Nesting of lists is unlimited. :-)

	      The indentation can be changed thru number register Li.  Default
	      is 6.

	      All lists begins with a list initialization  macro,  LB.	 There
	      are, however, seven predefined listtypes to make lists easier to
	      use. They all call LB with different default values.
	      AL   Automatically Incremented List
	      ML   Marked List
	      VL   Variable-Item List
	      BL   Bullet List
	      DL   Dash List
	      RL   Reference List
	      BVL  Broken Varable List.
	      These lists are described at other places in  this  manual.  See
	      also LB.

       LT [arg]
	      Formats  a  letter  in one of four different styles depending on
	      the argument.  See also INTERNALS.
	      Arg  Style
	      BL   Blocked. Date line, return address,	writer's  address  and
		   closing  begins  at the center of the line. All other lines
		   begin at the left margin.
	      SB   Semi-blocked. Same as blocked, except that the  first  line
		   in every paragraph is indented five spaces.
	      FB   Full-blocked. All lines begin at the left margin.
	      SP   Simplified. Almost the same as the full-blocked style. Sub‐
		   ject and the writer's identification are  printed  in  all-
		   capital.

       LO type [arg]
	      Specify  options	in  letter  (see  .LT).	 This is a list of the
	      standard options:
	      CN   Confidential notation. Prints CONFIDENTIAL  on  the	second
		   line	 below	the date line. Any argument replaces CONFIDEN‐
		   TIAL.  See also string variable LetCN.
	      RN   Reference notation. Prints In reference to: and  the	 argu‐
		   ment	 two lines below the date line.	 See also string vari‐
		   able LetRN.
	      AT   Attention. Prints ATTENTION: and  the  argument  below  the
		   inside address.  See also string variable LetAT.
	      SA   Salutation.	Prints To Whom It May Concern: or the argument
		   if it was present. The  salutation  is  printed  two	 lines
		   below the inside address.  See also string variable LetSA.
	      SJ   Subject  line. Prints the argument as subject prefixed with
		   SUBJECT: two lines below the inside address, except in let‐
		   ter	type  SP.   Then the subject is printed in all-captial
		   without any prefix.	See also string variable LetSJ.

       MC column-size [column-separation]
	      Begin multiple columns. Return to normal with 1C.	 MC will  cre‐
	      ate as many columns as the current line length permits.  Column-
	      size is the width of each column, and column-separation  is  the
	      space  between  two  columns.  Default separation is the column-
	      size/15.	See also 1C.

       ML mark [text-indent [1]]
	      Marked list start. The mark argument will be printed before each
	      list  item.   Text-indent	 sets  the indent and overrides Li.  A
	      third argument will prohibit printing of	a  blank  line	before
	      each item.

       MT [arg [addressee]]
	      Memorandum   type.    The	  arg	is   part  of  a  filename  in
	      /usr/local/share/groff/1.17.2/tmac/mm/*.MT.  Memorandum  type  0
	      thru 5 are supported, including "string".	 Addressee just sets a
	      variable, used in the AT&T macros.
	      arg
	      0	   Normal memorandum, no type printed
	      1	   Memorandum with MEMORANDUM FOR FILE printed
	      2	   Memorandum with PROGRAMMER'S NOTES printed
	      3	   Memorandum with ENGINEER'S NOTES printed
	      4	   Released paper style
	      5	   External letter style
	      See also COVER/COVEND, a more flexible type of front page.

       MOVE y-pos [x-pos [line-length]]
	      Move to a position, pageoffset set to x-pos.  If line-length  is
	      not  given, the difference between current and new pageoffset is
	      used.  Use PGFORM without arguments to return to normal.

       MULB cw1 space1 [cw2 space2 [cw3 ...]]
	      Begin a special multi-column mode. Every columns width  must  be
	      specified.   Also	 the  space between the columns must be speci‐
	      fied. The last column does not need any  space-definition.  MULB
	      starts  a	 diversion  and MULE ends the diversion and prints the
	      columns.	The unit for width and space is 'n', but MULB  accepts
	      all  normal  unitspecifications like 'c' and 'i'.	 MULB operates
	      in a separate environment.

       MULN   Begin the next column. This is the only way to switch column.

       MULE   End the multi-column mode and print the columns.

       nP [type]
	      Print numbered paragraph with header level two. See .P.

       NCOL   Force printing to the next column, don't use this together  with
	      the MUL* macros, see 2C.

       NS [arg [1]]
	      Prints  different	 types	of  notations.	The  argument  selects
	      between the predefined type of notations. If the second argument
	      is available, then the argument becomes the entire notation.  If
	      the argument doesn't exist in the predefined, it will be printed
	      as  Copy	(arg)  to.   It is possible to add more standard nota‐
	      tions, see the string variable Letns and Letnsdef.
	      Arg  Notation
	      none Copy To
	      ""   Copy To
	      1	   Copy To (with att.) to
	      2	   Copy To (without att.) to
	      3	   Att.
	      4	   Atts.
	      5	   Enc.
	      6	   Encs.
	      7	   Under separate cover
	      8	   Letter to
	      9	   Memorandum to
	      10   Copy (with atts.) to
	      11   Copy (without atts.) to
	      12   Abstract Only to
	      13   Complete Memorandum to
	      14   CC

       ND new-date
	      New date. Override the current date. Date is not printed if new-
	      date is an empty string.

       OF [arg]
	      Odd-page	footer,	 a  line printed just above the normal footer.
	      See EF and PF.

       OH [arg]
	      Odd-page header, a line printed just below  the  normal  header.
	      See EH and PH.

       OP     Make  sure  that	the following text is printed at the top of an
	      odd-numbered page. Will not output an empty page if currently at
	      the top of an odd page.

       P [type]
	      Begin  new paragraph.  P without argument will produce left jus‐
	      tified text, even the first line of the paragraph. This  is  the
	      same  as setting type to 0. If the argument is 1, then the first
	      line of text following P will be indented by the number of  spa‐
	      ces in number register Pi, normally 5.

	      Instead  of  giving 1 as argument to P it is possible to set the
	      paragraph type in number register Pt. Using 0 and 1 will be  the
	      same  as	adding	that value to P.  A value of 2 will indent all
	      paragraphs, except after headings, lists and displays.

	      The space between two paragraphs is controlled by number	regis‐
	      ter Ps, and is 1 by default (one blank line).

       PGFORM [linelength [pagelength [pageoffset [1]]]]
	      Sets  linelength,	 pagelength and/or pageoffset.	This macro can
	      be used for special formatting, like letterheads and other.   It
	      is  normally the first command in a file, though it's not neces‐
	      sary.  PGFORM can be used without arguments to reset  everything
	      after  a	MOVE.  A line-break is done unless the fourth argument
	      is given.	 This can be used to avoid the pagenumber on the first
	      page  while  setting new width and length.  (It seems as if this
	      macro sometimes doesn't work too well.   Use  the	 command  line
	      arguments	  to  change  linelength,  pagelength  and  pageoffset
	      instead. Sorry.)

       PGNH   No header is printed on the next page. Used to get  rid  of  the
	      header  in  letters  or other special texts.  This macro must be
	      used before any text to inhibit  the  pageheader	on  the	 first
	      page.

       PIC [-L] [-C] [-R] [-I n] filename [width [height]]
	      PIC  includes  a	Postscript  file  in  the document.  The macro
	      depends on mmroff and INITR.  -L, -C, -R and -I  n  adjusts  the
	      picture  or indents it. The optionally width and height can also
	      be given to resize the picture.

       PE     Picture end.  Ends a picture for pic, see the manual for pic.

       PF [arg]
	      Page footer.  PF sets the line to be printed at  the  bottom  of
	      each  page.   Normally empty. See PH for the argument specifica‐
	      tion.

       PH [arg]
	      Page header, a line printed at the top of each page.  The	 argu‐
	      ment   should  be	 specified  as	"'left-part'center-part'right-
	      part'", where left-, center- and right-part is printed left-jus‐
	      tified, centered and right justified. The character % is changed
	      to the current page number. The default page-header  is  "''-  %
	      -''", the page number between two dashes.

       PS     Picture start (from pic). Begins a picture for pic, see the man‐
	      ual.

       PX     Page-header user-defined exit.  PX  is  called  just  after  the
	      printing of the page header in no-space mode.

       R      Roman.  Return to roman font, see also I.

       RB [roman-text [bold-text [roman-text [...]]]]
	      Roman-bold.   Even  arguments  is printed in roman, odd in bold‐
	      face.  See I.

       RD [prompt [diversion [string]]]
	      Read from standard input to diversion and/or string.   The  text
	      will  be	saved in a diversion named diversion.  Recall the text
	      by writing the name of the diversion after a  dot	 on  an	 empty
	      line.  A	string will also be defined if string is given. Diver‐
	      sion and/or prompt can be empty ("").

       RF     Reference end. Ends a reference definition and returns to normal
	      processing. See RS.

       RI [roman-text [italic-text [roman-text [...]]]]
	      Even arguments are printed in roman, odd in italic.  See I.

       RL [text-indent [1]]
	      Reference list start.  Begins a list where each item is preceded
	      with a automatically incremented number between square brackets.
	      Text-indent changes the default indentation.

       RP [arg1 [arg2]]
	      Produce  reference  page.	 RP can be used if a reference page is
	      wanted somewhere in the document. It is not needed if TC is used
	      to  produce  a table of content. The reference page will then be
	      printed automatically.

	      The reference counter will not be reset if arg1 is 1.

	      Arg2 tells RP whether to eject a page or not.
	      Arg2
	      0	   The reference page will be  printed	on  a  separate	 page.
		   This is the default.
	      1	   Do not eject page after the list.
	      2	   Do not eject page before the list.
	      3	   Do not eject page before and after the list.
	      The  reference items will be separated by a blank line.  Setting
	      number register Ls to 0 will suppress the line.

	      The string Rp contains the reference page title and is  normally
	      set to REFERENCES.

       RS [string-name]
	      RS  begins  an automatically numbered reference definition.  Put
	      the string \*(Rf where the reference mark should	be  and	 write
	      the reference between RS/RF at next new line after the reference
	      mark. The reference number is stored in number register :R.   If
	      string-name  is  given,  a string with that name will be defined
	      and contain the current reference mark.  The string can be  ref‐
	      erenced as \*[string-name] later in the text.

       S [size [spacing]]
	      Set  point  size	and vertical spacing. If any argument is equal
	      'P', then the previous value is used. A 'C' means current value,
	      and  'D' default value.  If '+' or '-' is used before the value,
	      then increment or decrement of the current value will be done.

       SA [arg]
	      Set  right-margin	 justification.	  Justification	 is   normally
	      turned  on.   No	argumenent  or	0 turns off justification, a 1
	      turns on justification.

       SETR refname [string]
	      Remember the current header and page-number as  refname.	 Saves
	      string  if  string  is defined. string is retrieved with .GETST.
	      See INITR.

       SG [arg [1]]
	      Signature line. Prints the  authors  name(s)  after  the	formal
	      closing.	 The  argument will be appended to the reference data,
	      printed at either the first or last author. The  reference  data
	      is the location, department and initials specified with .AU.  It
	      will be printed at the first author if the  second  argument  is
	      given, otherwise at the last.  No reference data will be printed
	      if the author(s) is specifed thru .WA/.WE.  See INTERNALS.

       SK [pages]
	      Skip pages.  If pages is 0 or omitted, a skip to the  next  page
	      will occur unless it is already at the top of a page.  Otherwise
	      it will skip pages pages.

       SM string1 [string2 [string3]]
	      Make a string smaller.  If string2 is  given,  string1  will  be
	      smaller  and  string2  normal,  concatenated  with string1. With
	      three argument, all is concatenated, but only  string2  is  made
	      smaller.

       SP [lines]
	      Space  vertically.  lines can have any scalingfactor, like 3i or
	      8v. Several SP in a line will only produce the maximum number of
	      lines,  not  the	sum.  SP  will also be ignored until the first
	      textline in a page. Add a \& before SP to avoid this.

       TAB    reset tabs to every 5n. Normally used to reset any previous tab‐
	      positions.

       TB [title [override [flag [refname]]]]
	      Table title, arguments are the same as for EC.  TB uses the num‐
	      ber register Tb as counter.  The string Lt controls the title of
	      the  List	 of  Tables,  default  is LIST OF TABLES.  The List of
	      Tables will only be printed if number register Lt is 1,  default
	      1.   The	string	Litb  contains the word TABLE, wich is printed
	      before the number.
	      Special handling of the title will occur if TB  is  used	inside
	      DS/DE, it will not be affected by the format of DS.

       TC [slevel [spacing [tlevel [tab [h1 [h2 [h3 [h4 [h5]]]]]]]]]
	      Table of contents.  This macro is normally used at the last line
	      of the document.	It generates a table of contents with headings
	      up  to  the level controlled by number register Cl. Note that Cl
	      controls the saving of headings, it has nothing to do  with  TC.
	      Headings	with level less than or equal to slevel will get spac‐
	      ing number of lines before them.	Headings with level less  than
	      or  equal to tlevel will have their page numbers right justified
	      with dots or spaces separating the text  and  the	 page  number.
	      Spaces  is  used	if  tab	 is greater than zero, otherwise dots.
	      Other headings will have the page number directly at the end  of
	      the heading text (ragged right).

	      The  rest of the arguments will be printed, centered, before the
	      table of contents.

	      The user-defined macros TX and TY are used if TC is called  with
	      at most four arguments. TX is called before the printing of CON‐
	      TENTS, and TY is called instead of printing CONTENTS.

	      Equivalent macros can be defined for list	 of  figures,  tables,
	      equations and excibits by defining TXxx or TYxx, where xx is Fg,
	      TB, EC or EX.

	      String Ci can be set to control the indentations for each	 head‐
	      ing-level.   It must be scaled, like .ds Ci .25i .5i .75i 1i 1i.
	      The indentation is normally controlled by the maxlength of head‐
	      ings in each level.

	      All  texts  can  be  redefined,  new stringvariables Lifg, Litb,
	      Liex, Liec  and  Licon  contain  "Figure",  "TABLE",  "Exhibit",
	      "Equation" and "CONTENTS".  These can be redefined to other lan‐
	      guages.

       TE     Table end. See TS.

       TH [N] Table header. See TS.  TH ends the header	 of  the  table.  This
	      header will be printed again if a page-break occurs.  Argument N
	      isn't implemented yet.

       TL [charging-case number(s) [filing-case number(s)]]
	      Begin title of memorandum.  All  text  up	 to  the  next	AU  is
	      included in the title.  Charging-case number and filing-case are
	      saved for use in the front page processing.

       TM [num1 [num2 [...]]]
	      Technical memorandumnumbers used in  .MT.	 Unlimited  number  of
	      arguments may be given.

       TP     Top of page user-defined macro.  This macro is called instead of
	      the normal page header. It is possible to get  complete  control
	      over  the	 header.   Note that header and footer is printed in a
	      separate environment.  Linelength is preserved though.

       TS [H] Table start. This is the start of a table specification to  tbl.
	      See separate manual for tbl.  TS ends with TE.  Argument H tells
	      mm that the table has a header. See TH.

       TX     Userdefined table of contents exit.  This macro is  called  just
	      before TC prints the word CONTENTS.  See TC.

       TY     Userdefined  table of contents exit (no "CONTENTS").  This macro
	      is called instead of printing CONTENTS.  See TC.

       VERBON [flag [pointsize [font]]]
	      Begin verbatim output using courier font.	 Usually for  printing
	      programs.	  All character has equal width.  The pointsize can be
	      changed with the second argument. By specifying  the  font-argu‐
	      ment  it	is  possible  to  use another font instead of courier.
	      flag controls several special features.  It contains the sum  of
	      all wanted features.
	      ValueDescription
	      1	   Disable  the	 escape-character (\). This is normally turned
		   on during verbose output.
	      2	   Add an empty line before the verbose text.
	      4	   Add an empty line after the verbose text.
	      8	   Print the verbose text with numbered lines. This adds  four
		   digitsized spaces in the beginning of each line. Finer con‐
		   trol is available with the string-variable Verbnm. It  con‐
		   tains all arguments to the troff-command .nm, normally '1'.
	      16   Indent the verbose text with five 'n':s. This is controlled
		   by the number-variable Verbin (in units).

       VERBOFF
	      End verbatim output.

       VL text-indent [mark-indent [1]]
	      Variable-item list has no fixed mark, it assumes that  every  LI
	      have  a  mark instead.  Text-indent sets the indent to the text,
	      and mark-indent the distance from	 the  current  indent  to  the
	      mark.   A	 third argument will prohibit printing of a blank line
	      before each item.

       VM [top [bottom]]
	      Vertical margin.

       WA [writer-name [title]]
	      Begins specification of the writer and writer's  address.	  Sev‐
	      eral names can be specified with empty WA/WE-pairs, but only one
	      address.

       WE     Ends the address-specification after .WA.

       WC [format]
	      Footnote and display width control.
	      N	   Set default mode, -WF, -FF, -WD and FB.
	      WF   Wide footnotes, wide also in two-column mode.
	      -WF  Normal footnote width, follow column mode.
	      FF   All footnotes gets the same width  as  the  first  footnote
		   encountered.
	      -FF  Normal footnotes, width follows WF and -WF.
	      WD   Wide displays, wide also in two-column mode.
	      -WD  Normal display width, follow column mode.
	      FB   Floating  displays  generates  a line break when printed on
		   the current page.
	      -FB  Floating displays does not generate line break.

       Strings used in mm:

       App    A string containing the word "APPENDIX".

       Apptxt

       The current appendix text.
	      EM Em dash string

       H1txt  Will be updated by .H and .HU to the current heading text.  Also
	      updated in table of contents & friends.

       HF     Fontlist	for  headings,	normally  "2 2 2 2 2 2 2".  Nonnumeric
	      fontnames may also be used.

       HP     Pointsize list for headings. Normally "0 0 0 0 0 0 0"  which  is
	      the same as "10 10 10 10 10 10 10".

       Index

       Contains INDEX.
	      Indcmd

       Contains the index command, sort -t\t.
	      Lifg String containing Figure.

       Litb   String containing TABLE.

       Liex   String containing Exhibit.

       Liec   String containing Equation.

       Licon  String containing CONTENTS.

       Lf     Contains "LIST OF FIGURES".

       Lt     Contains "LIST OF TABLES".

       Lx     Contains "LIST OF EXHIBITS".

       Le     Contains "LIST OF EQUATIONS".

       Letfc  Contains "Yours very truly,", used in .FC.

       Letapp Contains "APPROVED:", used in .AV.

       Letdate
	      Contains "Date", used in .AV.

       LetCN  Contains "CONFIDENTIAL", used in .LO CN.

       LetSA  Contains "To Whom It May Concern:", used in .LO SA.

       LetAT  Contains "ATTENTION:", used in .LO AT.

       LetSJ  Contains "SUBJECT:", used in .LO SJ.

       LetRN  Contains "In reference to:", used in .LO RN.

       Letns  is an array containing the different strings used in .NS.	 It is
	      really a number of stringvariables prefixed with Letns!.	If the
	      argument	doesn't	 exist,	 it  will  be included between () with
	      Letns!copy as prefix and Letns!to as suffix.  Observe the	 space
	      after copy and before to.
	      Name	     Value
	      Letns!0	     Copy to
	      Letns!1	     Copy (with att.) to
	      Letns!2	     Copy (without att.) to
	      Letns!3	     Att.
	      Letns!4	     Atts.
	      Letns!5	     Enc.
	      Letns!6	     Encs.
	      Letns!7	     Under separate cover
	      Letns!8	     Letter to
	      Letns!9	     Memorandum to
	      Letns!10	     Copy (with atts.) to
	      Letns!11	     Copy (without atts.) to
	      Letns!12	     Abstract Only to
	      Letns!13	     Complete Memorandum to
	      Letns!14	     CC
	      Letns!copy     Copy "
	      Letns!to	     " to

       Letnsdef
	      Defines  the standard-notation used when no argument is given to
	      .NS. Default is 0.

       MO1 - MO12
	      Strings containing January thru December.

       Qrf    String containing "See chapter \\*[Qrfh], page \\n[Qrfp].".

       Rp     Contains "REFERENCES".

       Tcst   Contains current status of table of contents and list  of	 XXXX.
	      Empty outside .TC.  Useful in user-defined macros like .TP.
	      Value	     Meaning
	      co	     Table of contents
	      fg	     List of figures
	      tb	     List of tables
	      ec	     List of equations
	      ex	     List of exhibits
	      ap	     Appendix

       Tm     Contains \(tm, trade mark.

       Verbnm Argument to .nm in .VERBON, default: 1.

       Number variables used in mm:

       Aph    Print  an	 appendix-page	for every new appendix if this number‐
	      variable is non-zero.  No output will occur if Aph is zero,  but
	      there  will  always  be  an  appendix-entry in the 'List of con‐
	      tents'.

       Cl     Contents level [0:7], contents saved if  heading	level  <=  Cl,
	      default 2.

       Cp     Eject page between LIST OF XXXX if Cp == 0, default 0.

       D      Debugflag,  values  >0 produces varying degree of debug. A value
	      of 1 gives information about the progress of formatting, default
	      0.

       De     Eject after floating display is output [0:1], default 0.

       Dsp    Controls	the  space  output before and after static displays if
	      defined. Otherwise is the value of Lsp used.

       Df     Floating keep output [0:5], default 5.

       Ds     Lsp space before and after display if == 1 [0:1], default 1.

       Ej     Eject page, default 0.

       Eq     Equation lable adjust 0=left, 1=right. Default 0.

       Fs     Footnote spacing, default 1.

       H1-H7  Heading counters

       H1dot  Append a dot after the level one heading number if > 0.  Default
	      is 1.

       H1h

       Copy of number register H1, but it is incremented
	      just  before  the	 page  break.  Useful  in  user defined header
	      macros.  Hb Heading break level [0:7], default 2.

       Hc     Heading centering level, [0:7]. Default 0.

       Hi     Heading temporary indent [0:2], default 1.
	      0 -> 0 indent, left margin
	      1 -> indent to right , like .P 1
	      2 -> indent to line up with text part of preceding heading

       Hps    Numbervariable with the heading pre-space level. If the heading-
	      level  is less than or equal to Hps, then two lines will precede
	      the section heading instead of one. Default is first level only.
	      The real amount of lines is controlled by the variables Hps1 and
	      Hps2.

       Hps1   This is the number of lines preceding .H when the	 heading-level
	      is greater than Hps. Value is in units, normally 0.5.

       Hps2   This  is the number of lines preceding .H when the heading-level
	      is less than or equal to Hps. Value is in units, normally 1.

       Hs     Heading space level [0:7], default 2.

       Hss    This is the number of lines that follows .H  when	 the  heading-
	      level  is	 less than or equal to Hs. Value is in units, normally
	      1.

       Ht     Heading numbering type, default 0.  0 -> multiple (1.1.1 ...)
	      1 -> single

       Hu     Unnumbered heading level, default 2.

       Hy     Hyphenation in body, default 1.
	      0 -> no hyphenation
	      1 -> hyphenation 14 on

       Iso    Set this variable to 1 on the command line to get	 ISO-formatted
	      date string.  (-rIso=1) Useless inside a document.

       Letwam Max lines in return-address, used in .WA/.WE. Default 14.

       Lf, Lt, Lx, Le
	      Enables  (1)  or	disables  (0) the printing of List of figures,
	      List  of	tables,	 List  of  exhibits  and  List	of  equations.
	      Default: Lf=1, Lt=1, Lx=1, Le=0.

       Li     List indent, used by .AL, default 6.

       Limsp  Flag for space between prefix and mark in automatic lists (.AL).
	      0 == no space
	      1 == space

       Ls     List space, if current listlevel > Ls then no spacing will occur
	      around lists.  Default 99.

       Lsp    The size of an empty line. Normally 0.5v, but it is 1v if	 n  is
	      set (.nroff).

       N      Numbering style [0:5], default 0.
	      0 == (default) normal header for all pages.
	      1 == header replaces footer on first page, header is empty.
	      2 == page header is removed on the first page.
	      3 == "section-page" numbering enabled.
	      4 == page header is removed on the first page.
	      5 == "section-page" and "section-figure" numbering enabled.  See
	      also the number-register Sectf and Sectp.

       Np     Numbered paragraphs, default 0.
	      0 == not numbered
	      1 == numbered in first level headings.

       Of     Format of figure,table,exhibit,equation titles, default 0.
	      0 = ". "
	      1 = " - "

       P      Current page-number, normally the same  as  %  unless  "section-
	      page" numbering is enabled.

       Pi     paragraph indent, default 5.

       Pgps   Controls	whether	 header and footer pointsize should follow the
	      current setting or just change when the  header  and  footer  is
	      defined.
	      ValueDescription
	      0	   Pointsize will only change to the current setting when .PH,
		   .PF, .OH, .EH, .OF or .OE is executed.
	      1	   Pointsize will change after every .S. This is the default.

       Ps     paragraph spacing, default 1.

       Pt     Paragraph type, default 0.
	      0 == left-justified
	      1 == indented .P
	      2 == indented .P except after .H, .DE or .LE.

       Sectf  Flag controlling "section-figures".  A  non-zero	value  enables
	      this.  See also register N.

       Sectp  Flag   controlling   "section-page-numbers".  A  non-zero	 value
	      enables this.  See also register N.

       Si     Display indent, default 5.

       Verbin Indent for .VERBON, default 5n.

       .mgm   Always 1.

INTERNALS
       The letter macros is using different submacros depending on the	letter
       type.  The  name	 of  the submacro has the letter type as suffix. It is
       therefore possible to define other letter types, either in the national
       macro-file,  or	as local additions.  .LT will set the number variables
       Pt and Pi to 0 and 5.  The following strings and macros must be defined
       for a new letter type:

       let@init_type
	      This macro is called directly by .LT. It is supposed to initial‐
	      ize variables and other stuff.

       let@head_type
	      This macro prints the letter head, and is called instead of  the
	      normal   page  header.  It  is  supposed	to  remove  the	 alias
	      let@header, otherwise it will be called for all pages.

       let@sg_type name title n flag [arg1 [arg2 [...]]]
	      .SG is calling this macro only for letters, memorandums has  its
	      own  processing.	name and title is specified thru .WA/.WB. n is
	      the counter, 1-max, and flag is true  for	 the  last  name.  Any
	      other argument to .SG is appended.

       let@fc_type closing
	      This macro is called by .FC, and has the formal closing as argu‐
	      ment.

       .LO is implemented as a general option-macro. .LO demands that a string
       named Lettype is defined, where type is the letter type.	 .LO will then
       assign the argument to the string variable let*lo-type.

AUTHOR
       J�rgen H�gg, Lund, Sweden <jh@axis.se>.

FILES
       /usr/local/share/groff/1.17.2/tmac/tmac.m

       /usr/local/share/groff/1.17.2/tmac/mm/*.cov

       /usr/local/share/groff/1.17.2/tmac/mm/*.MT

       /usr/local/share/groff/1.17.2/tmac/mm/locale

SEE ALSO
       groff(1), troff(1), tbl(1), pic(1), eqn(1)
       mm(7) mmse(7)

Groff Version 1.17.2		 27 June 2001			   GROFF_MM(7)
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