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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			/freeware/gnu-
	      tools/share/groff/1.17.2/tmac/mm/arg.cov. Therefore it is possi‐
	      ble  to  create  unlimited types of coversheets.	ms.cov is sup‐
	      posed 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	/free‐
	      ware/gnu-tools/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  gpic,  see  the
	      manual.

       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 gtbl.
	      See separate manual for gtbl.  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
       /freeware/gnu-tools/share/groff/1.17.2/tmac/tmac.m

       /freeware/gnu-tools/share/groff/1.17.2/tmac/mm/*.cov

       /freeware/gnu-tools/share/groff/1.17.2/tmac/mm/*.MT

       /freeware/gnu-tools/share/groff/1.17.2/tmac/mm/locale

SEE ALSO
       groff(1), gtroff(1), gtbl(1), gpic(1), geqn(1)
       mm(7) mmse(7)

Groff Version 1.17.2		 27 June 2001			   GROFF_MM(7)
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