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GROFF_MM(7)                      Miscellaneous Information Manual                     GROFF_MM(7)

NAME
       groff_mm - memorandum macros for GNU roff

SYNOPSIS
       groff -mm [option ...] [file ...]
       groff -m mm [option ...] [file ...]

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

       o      No Bell Labs localisms are implemented.

       o      The macros OK and PM are not implemented.

       o      groff mm does not support cut marks.

       mm is intended to support easy localization.  Use mmse as an example how to adapt the  output
       format to a national standard.  Localized strings are collected in the file /usr/share/groff/
       1.22.4/tmac/xx.tmac, where xx denotes the two-letter code for the language, as defined in the
       ISO  639 standard.  For Swedish, this is 'sv.tmac' - not 'se', which is the ISO 3166 two-let-
       ter code for the country (as used for the output format localization).

       A file called locale or country_locale is read after the initialization of the  global  vari-
       ables.   It is therefore possible to localize the macros with a different company name and so
       on.

       In this manual, square brackets are used to show optional arguments.

   Number registers and strings
       Many macros can be controlled by number registers and strings.  A number 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 the increment value
       for auto-increment.  n can have a plus or minus sign as a prefix if an increment or decrement
       of  the current value is wanted.  (Auto-increment or auto-decrement occurs if the number reg-
       ister is used with a plus or minus sign, \n+[XXX] or \n-[XXX].)

       Strings are 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, ...

   Fonts
       In mm, the fonts (or rather, font styles) R (normal), I (italic), and B (bold) are  hardwired
       to  font  positions 1, 2, and 3, respectively.  Internally, font positions are used for back-
       wards compatibility.  From a practical point of view it doesn't make a  big  difference  -  a
       different  font family can still be selected with a call to the .fam request or using groff's
       -f command-line option.  On the other hand, if you want to replace just,  say,  font  B,  you
       have to replace the font at position 2 (with a call to '.fp 2 ...').

   Macros
       )E level text
              Add heading text text to the table of contents with level, which is either 0 or in the
              range 1 to 7.  See also .H.  This macro is used for customized tables of contents.

       1C [1] Begin one-column processing.  A 1 as an 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]
              Author's firm, should be called before AU, see also COVER.

       AL [type [text-indent [1]]]
              Start auto-increment list.  Items are numbered beginning with one.  The type  argument
              controls the format 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 indentation and overrides Li.  A third argument prohibits print-
              ing of a blank line before each item.

       APP name text
              Begin an appendix with name name.  Automatic naming occurs if name is "".  The  appen-
              dices  start  with A if automatic naming is used.  A 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 appears in the 'List of contents' with correct page numbers.  The name
              'APPENDIX' can be changed by setting the string App to the desired text.   The  string
              Apptxt contains the current appendix text.

       APPSK name pages text
              Same  as  .APP, but the page number is incremented with pages.  This is used when dia-
              grams or other non-formatted documents are included as appendices.

       AS [arg [indent]]
              Abstract start.  Indentation is specified in 'ens', but scaling is allowed.   Argument
              arg controls where the abstract is printed.

              Arg   Placement
              0     Abstract is printed on page 1 and on the cover sheet if used in the released-pa-
                    per style (MT 4), otherwise it is printed on page 1 without a cover sheet.
              1     Abstract is only printed on the cover sheet (MT 4 only).
              2     Abstract is printed only on the cover sheet (other than MT 4 only).   The  cover
                    sheet is printed without a need for CS.

              An  abstract  is  not printed at all in external letters (MT 5).  The indent parameter
              controls the indentation of both margins, otherwise normal text indentation is used.

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

       AT title1 [title2 [...]]
              Author's title.  AT must appear just after each AU.  The title shows 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 is 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 num-
              ber 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; it is replaced with an
              empty lin if there is a second argument.  The string 'Date' can be changed with  vari-
              able 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 arguments are concatenated
              to one word; the first, third and so on is printed in boldface.

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

       B2     End box.  Finishes the box started with 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.  Initializes a list with a bullet and a space in the beginning of
              each list item (see LI).  text-indent overrides the default indentation  of  the  list
              items  set by number register Pi.  A third argument prohibits 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.  The 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 always begins at the next line af-
              ter  the mark.  text-indent sets the indentation to the text, and mark-indent the dis-
              tance from the current indentation to the mark.  A third argument  prohibits  printing
              of a blank line before each item.

       COVER [arg]
              Begin  a coversheet definition.  It is important that .COVER appears before any normal
              text.      This     macro      uses      arg      to      build      the      filename
              /usr/share/groff/1.22.4/tmac/mm/arg.cov.  Therefore it is possible to create unlimited
              types of cover sheets.  ms.cov is supposed to look like the ms  cover  sheet.   .COVER
              requires  a  .COVEND at the end of the cover definition.  Always use this order of the
              cover macros:

                     .COVER
                     .TL
                     .AF
                     .AU
                     .AT
                     .AS
                     .AE
                     .COVEND

              However, only .TL and .AU are required.

       COVEND Finish the cover description and print the cover page.  It is  defined  in  the  cover
              file.

       DE     Display end.  Ends a block of text or 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 are 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 occurs 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 section-page  number-
                         ing is active) or at the end of the document.
                     1   A new display is printed on the current page if there is enough space, oth-
                         erwise it is printed at the end of the document.
                     2   One display is printed at the top of each page or column  (in  multi-column
                         mode).
                     3   Print  one display if there is enough space for it, otherwise it is printed
                         at the top of the next page or column.
                     4   Print as many displays as possible in a new page or column.  A  page  break
                         occurs 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 occurs 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  an  empty  line between each list item.  See LI.  A third argument
              prohibits 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  to-
              gether  on  the same page, unless it is longer than the height of the page.  DS can be
              nested arbitrarily.

              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.

              The values 'L', 'I', 'C', and 'CB' can also be specified as '0', '1',  '2',  and  '3',
              respectively, for compatibility reasons.

              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' and '1', respectively.

              By  default,  an  empty  line is printed before and after the display.  Setting number
              register Ds to 0 prevents 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 changes the num-
              bering.

              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 a counter.  It is possible to use .af to change the
              format of the number.  If number register Of is 1, the format of title uses a dash in-
              stead of a dot after the number.

              The  string  Le controls the title of the List of Equations; default is 'LIST OF EQUA-
              TIONS'.  The List of Equations is only printed if number register Le is  1.   The  de-
              fault is 0.  The string Liec contains the word 'Equation', which is printed before the
              number.  If refname is used, then the equation number is saved with .SETR, and can  be
              retrieved with '.GETST refname'.

              Special handling of the title occurs if EC is used inside DS/DE; it is not affected by
              the format of DS.

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

              This macro defines string EOPef.

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

              This macro defines string TPeh.

       EN     Equation end, see EQ.

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

              Strings available to EOP

              EOPf    argument of PF
              EOPef   argument of EF
              EOPof   argument of OF

       EPIC [-L] width height [name]
              Draw a box with the given width and height.  It also prints the text name or a default
              string if name is not specified.  This is used to include external pictures; just give
              the size of the picture.  -L left-adjusts the picture; the default is to center.   See
              PIC.

       EQ [label]
              Equation  start.   EQ/EN  are  the delimiters for equations written for eqn(1).  EQ/EN
              must be inside of a DS/DE pair, except if EQ is used to set options for eqn only.  The
              label argument appears at the right margin of the equation, centered vertically within
              the DS/DE block, unless number register Eq is 1.  Then the label appears at  the  left
              margin.

              If  there are multiple EQ/EN blocks within a single DS/DE pair, only the last equation
              label (if any) is printed.

       EX [title [override [flag [refname]]]]
              Exhibit title.  The arguments are the same as for EC.  EX uses the number register  Ex
              as  a  counter.   The string Lx controls the title of the List of Exhibits; default is
              'LIST OF EXHIBITS'.  The List of Exhibits is only printed if number register Lx is  1,
              which  is  the default.  The string Liex contains the word 'Exhibit', which is printed
              before the number.  If refname is used, the exhibit number is saved  with  .SETR,  and
              can be retrieved with '.GETST refname'.

              Special handling of the title occurs if EX is used inside DS/DE; it is not affected by
              the format of DS.

       FC [closing]
              Print 'Yours very truly,' as a formal closing of a letter or memorandum.  The argument
              replaces the default string.  The default is stored in string variable Letfc.

       FD [arg [1]]
              Footnote  default  format.  Controls the hyphenation (hyphen), right margin justifica-
              tion (adjust), and indentation of footnote text (indent).  It can also change the  la-
              bel 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

              An  argument  greater than or equal to 11 is considered as value 0.  Default for mm is
              10.

       FE     Footnote end.

       FG [title [override [flag [refname]]]]
              Figure title.  The arguments are the same as for EC.  FG uses the number  register  Fg
              as  a  counter.   The  string Lf controls the title of the List of Figures; default is
              'LIST OF FIGURES'.  The List of Figures is only printed if number register  Lf  is  1,
              which  is  the  default.  The string Lifg contains the word 'Figure', which 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 occurs if FG is used inside DS/DE, it is not affected by
              the format of DS.

       FS [label]
              Footnote start.  The footnote is ended by FE.  By default, footnotes are 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
              displays  are 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]
              Include the header number where the corresponding 'SETR refname' was placed.  This  is
              displayed  as  'X.X.X.'  in  pass  1.   See INITR.  If varname is used, GETHN sets the
              string variable varname to the header number.

       GETPN refname [varname]
              Include the page number where the corresponding 'SETR refname' was  placed.   This  is
              displayed as '9999' in pass 1.  See INITR.  If varname is used, GETPN sets the string-
              variable varname to the page number.

       GETR refname
              Combine GETHN and GETPN with the text 'chapter' and ', page'.  The string Qrf contains
              the text for the cross 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 contain the page and header number, respectively.

       GETST refname [varname]
              Include the string saved with the second argument to .SETR.  This is a dummy string in
              pass 1.  If varname is used, GETST sets it to the saved string.  See INITR.

       H level [heading-text [heading-suffix]]
              Numbered  section heading.  Section headers can have a level between 1 and 14; level 1
              is the top level.  The text is given in heading-text, and must be surrounded by double
              quotes  if  it contains 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-suffix, it doesn't work.  A manual label must be
              used, see FS.

              A call to the paragraph macro P directly after H is ignored.  H takes care of  spacing
              and indentation.

              Page ejection before heading

                     Number  register  Ej  controls page ejection before the heading.  By default, a
                     level-one heading gets two blank lines before it; higher levels only  get  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 get 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 is 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 is 2.

                     Text  follows 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 number register  Hi.
                     Default value is 0.

                     Hi

                     0   The text is left-justified.
                     1   Indentation of the text follows the value of number register Pt , see P.
                     2   The text is lined up with the first word of the heading.

              Centered section headings

                     All  headings  whose  level  is equal or below number register Hc and also less
                     than or equal to Hb or Hs are centered.

              Font control of the heading

                     The font of each heading level is controlled by string HF.  It contains a  font
                     number or font name for each level.  Default value is

                            2 2 2 2 2 2 2 2 2 2 2 2 2 2

                     (all headings in italic).  This could also be written as

                            I I I I I I I I I I I I I I

                     Note  that  some  other implementations use 3 3 2 2 2 2 2 as the default value.
                     All omitted values are presumed to have value 1.

              Point size control

                     String HP controls the point size of each heading, in the same way as  HF  con-
                     trols the font.  A value of 0 selects the default point size.  Default value is

                            0 0 0 0 0 0 0 0 0 0 0 0 0 0

                     Beware that only the point size changes, not the vertical size.  The latter can
                     be controlled by the user-specified macros HX and/or HZ.

              Heading counters

                     Fourteen number registers named H1 up to H14 contain the counter for each head-
                     ing  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.  This only prints the current heading
                     counter at each heading.

              Automatic table of contents

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

              Special control of the heading, user-defined macros

                     The  following macros can be defined by the user to get a finer control of ver-
                     tical 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 head-
                     ing-text is the text argument to H and HU.

                     HX level rlevel heading-text
                            This  macro is called just before the printing of the heading.  The fol-
                            lowing registers are available for HX.  Note that HX may alter  }0,  }2,
                            and ;3.

                            }0 (string)
                                   Contains  the heading mark plus two spaces if rlevel is non-zero,
                                   otherwise empty.

                            ;0 (register)
                                   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.

                            }2 (string)
                                   Contains  two spaces if register ;0 is 0.  It is used to separate
                                   the heading from the text.  The string is empty  if  ;0  is  non-
                                   zero.

                            ;3 (register)
                                   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
                            This  macro is called after size and font calculations and might be used
                            to change indentation.

                     HZ dlevel rlevel heading-text
                            This macro is called after the printing of the heading, just before H or
                            HU  exits.   Can be used to change the page header according to the sec-
                            tion 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 at
              the beginning of the file.

       HM [arg1 [arg2 [... [arg14]]]]
              Heading mark style.  Controls the type of marking for printing of  the  heading  coun-
              ters.  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
              ""     Arabic numerals.

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

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

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

       HZ dlevel rlevel heading-text
              User-defined 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
              sets  the  word in italic.  With two arguments it concatenates them and sets the first
              word in italic and the second in the previous font.  There is no limit on  the  number
              of argument; all are concatenated.

       IA [addressee-name [title]]
              Begin 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 are printed in italic, odd in boldface.  See I.

       IE     End the address specification after IA.

       INITI type filename [macro]
              Initialize the new index system and set 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 page numbers.

              It is also possible to create a macro that is responsible  for  formatting  each  row;
              just add the name of the macro as a third argument.  The macro is then called with the
              index as argument(s).

              type

              N   Page numbers

              H   Header marks
              B   Both page numbers and header marks, separated with a tab character.

       INITR filename
              Initialize the cross reference macros.  Cross references are written to stderr and are
              supposed  to  be  redirected  into file filename.qrf.  Requires two passes with groff;
              this is handled by a separate program called mmroff(1).  This program  exists  because
              groff(1) by default deactivates the unsafe operations that are required by INITR.  The
              first pass looks for cross references, and the second one includes them.  INITR can be
              used several times, but it is only the first occurrence of INITR that is active.

              See also SETR, GETPN, and GETHN.

       IND arg1 [arg2 [...]]
              Write  a line in the index file selected by INITI with all arguments and the page num-
              ber or header mark separated by tabs.

                     Examples

                     arg1\tpage number
                     arg1\targ2\tpage number
                     arg1\theader mark
                     arg1\tpage number\theader mark

       INDP   Print the index by running the command specified by string variable Indcmd, which  has
              'sort -t\t'  as the default value.  INDP reads the output from the command to form the
              index, by default in two columns (this can be changed by defining TYIND).   The  index
              is  printed with string variable Index as header, default is 'INDEX'.  One-column pro-
              cessing is reactivated after the list.  INDP  calls  the  user-defined  macros  TXIND,
              TYIND,  and  TZIND  if  defined.   TXIND is called before printing the string 'INDEX',
              TYIND is called instead of printing 'INDEX', and TZIND is called  after  the  printing
              and should take care of restoring to normal operation again.

       ISODATE [0]
              Change  the  predefined  date string in DT to ISO-format, this is, '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 are 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 indentation.

              pad and mark-indent control where to put the mark.  The mark is placed within the mark
              area, and mark-indent sets the number of spaces before this area.  By default it is 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  within  the  mark  area if pad is 0.  If pad is greater
              than 0, mark-indent is ignored, and the mark is placed pad  spaces  before  the  text.
              This right-justifies the mark.

              If  type is 0 the list either has a hanging indentation or, if argument mark is given,
              the string mark as a mark.

              If type is greater than 0 automatic numbering occurs, using arabic numbers 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 gets LI-space number of blank lines before them.  Default is 1.

              LB itself prints 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
              argument is given.  This is used by H to clear any active list.

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

       LI [mark [1|2]]
              List item preceding every item in a list.  Without argument, LI prints the mark deter-
              mined by the current list type.  By giving LI one argument, it uses that as  the  mark
              instead.   Two  arguments  to LI makes mark a prefix to the current mark.  There is 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 makes a hanging indentation instead.

              A blank line is printed before the list item by default.  This behaviour can  be  con-
              trolled  by  number  register Ls.  Pre-spacing occurs for each list level less than or
              equal to Ls.  Default value is 99.  There is no nesting limit.

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

              All lists begin with a list initialization macro, LB.  There are, however, seven  pre-
              defined  list  types to make lists easier to use.  They all call LB with different de-
              fault values.

                     AL    Automatically Incremented List
                     ML    Marked List
                     VL    Variable-Item List
                     BL    Bullet List
                     DL    Dash List
                     RL    Reference List
                     BVL   Broken Variable List.

              These lists are described at other places in this manual.  See also LB.

       LT [arg]
              Format a letter in one of four different styles depending on the argument.   Also  see
              section "Internals" below.

                     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 para-
                           graph is indented five spaces.
                     FB    Full-blocked.  All lines begin at the left margin.
                     SP    Simplified.   Almost the same as the full-blocked style.  Subject 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 'CONFIDENTIAL'.  See also string vari-
                          able LetCN.
                     RN   Reference notation.  Prints 'In reference to:' and the argument two  lines
                          below the date line.  See also string variable 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 letter type 'SP', where the sub-
                          ject is printed in all-capital without any prefix.  See also string  vari-
                          able LetSJ.

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

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

       MT [arg [addressee]]
              Memorandum   type.    The   argument    arg    is    part    of    a    filename    in
              /usr/share/groff/1.22.4/tmac/mm/*.MT.   Memorandum types 0 to 5 are supported, includ-
              ing type 'string' (which gets internally mapped to type 6).   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, setting page offset to x-pos.  If line-length is not given, the
              difference between current and new page offset is used.  Use PGFORM without  arguments
              to return to normal.

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

       MULN   Begin the next column.  This is the only way to switch the 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]]
              Print different types of notations.  The argument selects between the predefined  type
              of  notations.  If the second argument is available, then the argument becomes the en-
              tire notation.  If the argument doesn't select a predefined type,  it  is  printed  as
              'Copy  (arg) to'.  It is possible to add more standard notations, see the string vari-
              ables 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.  Overrides 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.

              This macro defines string EOPof.

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

              This macro defines string TPoh.

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

       P [type]
              Begin new paragraph.  P without argument produces left-justified text, even the  first
              line  of the paragraph.  This is the same as setting type to 0.  If the argument is 1,
              the first line of text following P is indented by the number of spaces in number  reg-
              ister Pi, by default 5.

              Instead  of giving an argument to P it is possible to set the paragraph type in number
              register Pt.  Using 0 and 1 is the same as adding that value to P.  A value of  2  in-
              dents  all paragraphs, except after headings, lists, and displays (this value can't be
              used as an argument to P itself).

              The space between two paragraphs is controlled by number register Ps, and is 1 by  de-
              fault (one blank line).

       PGFORM [linelength [pagelength [pageoffset [1]]]]
              Set  line length, page length, and/or page offset.  This macro can be used for special
              formatting, like letter heads and other.  It is normally the first command in a  file,
              though  it is not necessary.  PGFORM can be used without arguments to reset everything
              after a MOVE call.  A line break is done unless the fourth argument  is  given.   This
              can  be  used  to  avoid the page number 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 line length, page length, and page offset instead.)

       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  page
              header on the first page.

       PIC [-B] [-L] [-C] [-R] [-I n] filename [width [height]]
              Include  a PostScript file in the document.  The macro depends on mmroff(1) and INITR.
              The arguments -L, -C, -R, and -I n adjust the picture or indent it.  With no flag  the
              picture  is  adjusted to the left.  Adding -B draws a box around the picture.  The op-
              tional width and height can also be given to resize the picture.

       PE     Picture end.  Ends a picture for pic(1).

       PF [arg]
              Page footer.  PF sets the line to be printed at the bottom of each page.  Empty by de-
              fault.  See PH for the argument specification.

              This macro defines string EOPf.

       PH [arg]
              Page header, a line printed at the top of each page.  The argument should be specified
              as

                     "'left-part'center-part'right-part'"

              where left-part, center-part, and right-part are printed left-justified, centered, and
              right  justified,  respectively.   Within  the  argument  to  PH, the character '%' is
              changed to the current page number.  The default argument is

                     "''- % -''"

              which gives the page number between two dashes.

              This macro defines string TPh.

       PS     Picture start (from pic).  Begins a picture for pic(1).

       PX     Page header user-defined exit.  This macro 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 are printed in roman, odd in boldface.  See I.

       RD [prompt [diversion [string]]]
              Read from standard input to diversion and/or string.  The text is 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 is also defined if string is given.  Diversion 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 [...]]]]
              Print even arguments in roman, odd in italic.  See I.

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

       RP [arg1 [arg2]]
              Produce reference page.  This macro can be used if a reference page  is  wanted  some-
              where in the document.  It is not needed if TC is used to produce a table of contents.
              The reference page is then printed automatically.

              The reference counter is not reset if arg1 is 1.

              arg2 tells RP whether to eject a page or not.

              arg2

                     0   The reference page is printed on a separate page.
                     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 are separated by a blank line.  Setting number register  Ls  to  0
              suppresses the line.

              The string Rp contains the reference page title and is set to 'REFERENCES' by default.
              The number register Rpe holds the default value for the second argument of RP;  it  is
              initially set to 0.

       RS [string-name]
              Begin  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 is defined and contains the  current  reference
              mark.  The string can be referenced as \*[string-name] later in the text.

       S [size [spacing]]
              Set  point  size  and vertical spacing.  If any argument is equal to 'P', the previous
              value is used.  A 'C' means current value, and 'D' the default value.  If '+'  or  '-'
              is  used  before  the  value, the current value is incremented or decremented, respec-
              tively.

       SA [arg]
              Set right-margin justification.  Justification is turned on by default.   No  argument
              or value '0' turns off justification, and '1' turns on justification.

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

       SG [arg [1]]
              Signature line.  Prints the authors name(s) after the formal closing.  The argument is
              appended  to the reference data, printed at either the first or last author.  The ref-
              erence data is the location, department, and  initials  specified  with  .AU.   It  is
              printed  at  the  first author if the second argument is given, otherwise at the last.
              No reference data is printed if the author(s) is specified through .WA/.WE.  See  sec-
              tion "Internals" below.

       SK [pages]
              Skip pages.  If pages is 0 or omitted, a skip to the next page occurs unless it is al-
              ready at the top of a page.  Otherwise it skips pages pages.

       SM string1 [string2 [string3]]
              Make a string smaller.  If string2 is given, string1 is made smaller and string2 stays
              at  normal  size, concatenated with string1.  With three arguments, everything is con-
              catenated, but only string2 is made smaller.

       SP [lines]
              Space vertically.  lines can have any scaling factor, like '3i' or '8v'.   Several  SP
              calls in a line only produces the maximum number of lines, not the sum.  SP is ignored
              also until the first text line in a page.  Add \& before a call to 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.  The arguments are the same as for EC.  TB uses the number register Tb as
              a  counter.   The string Lt controls the title of the List of Tables; default value is
              'LIST OF TABLES'.  The List of Tables is only printed if  number  register  Lt  is  1,
              which is the default.  The string Litb contains the word 'TABLE', which is printed be-
              fore the number.

              Special handling of the title occurs if TB is used inside DS/DE, it is not affected by
              the format of DS.

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

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

              The user-defined macros TX and TY are used if TC is called with  at  most  four  argu-
              ments.   TX  is  called before the printing of the string 'CONTENTS', and TY is called
              instead of printing 'CONTENTS'.

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

              String  Ci  can be set to control the indentations for each heading-level.  It must be
              scaled, like

                     .ds Ci .25i .5i .75i 1i 1i

              By default, the indentation is controlled by the maximum length of  headings  in  each
              level.

              The string variables Lifg, Litb, Liex, Liec, and Licon contain 'Figure', 'TABLE', 'Ex-
              hibit', 'Equation', and 'CONTENTS', respectively.  These can  be  redefined  to  other
              languages.

       TE     Table end.  See TS.

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

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

       TM [num1 [num2 [...]]]
              Technical memorandum numbers used in .MT.  An 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 the header
              and  the  footer  are  printed  in  a separate environment.  Line length is preserved,
              though.  See EOP.

              strings available to TP

              TPh    argument of PH
              TPeh   argument of EH
              TPoh   argument of OH

       TS [H] Table start.  This is the start of a table specification to tbl(1).  TS ends with  TE.
              Argument 'H' tells mm that the table has a header.  See TH.

       TX     User-defined  table  of contents exit.  This macro is called just before TC prints the
              word 'CONTENTS'.  See TC.

       TY     User-defined table of contents exit.  This macro is called instead of  printing  'CON-
              TENTS'.  See TC.

       VERBON [flag [point-size [font]]]
              Begin verbatim output using Courier font.  Usually for printing programs.  All charac-
              ters have equal width.  The point size can be changed with the  second  argument.   By
              specifying  a  third  argument  it is possible to use another font instead of Courier.
              flag controls several special features.  Its value is the sum of all wanted features.

                     Arg   Description
                     1     Disable the escape character (\).  This is normally turned on during ver-
                           bose 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 digit-sized
                           spaces in the beginning of each line.  Finer control  is  available  with
                           the  string  variable  Verbnm.  It contains all arguments to the troff(1)
                           command .nm, normally '1'.
                     16    Indent the verbose text by '5n'.  This is controlled by the  number-vari-
                           able Verbin (in units).

       VERBOFF
              End verbatim output.

       VL text-indent [mark-indent [1]]
              Variable-item  list.   It  has  no fixed mark, it assumes that every LI has a mark in-
              stead.  text-indent sets the indent to the text, and mark-indent the distance from the
              current  indentation to the mark.  A third argument prohibits printing of a blank line
              before each item.

       VM [-T] [top [bottom]]
              Vertical margin.  Increase the top and bottom margin by top and bottom,  respectively.
              If  option  -T  is  specified, set those margins to top and bottom.  If no argument is
              given, reset the margin to zero, or to the default ('7v 5v') if -T  is  used.   It  is
              highly  recommended  that macros TP and/or EOP are defined if using -T and setting top
              and/or bottom margin to less than the default.

       WA [writer-name [title]]
              Begin specification of the writer and writer's address.  Several names can  be  speci-
              fied with empty WA/WE pairs, but only one address.

       WE     End the address specification after .WA.

       WC [format1] [format2] [...]
              Footnote and display width control.

              N     Set default mode which is equal to using the options -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  Updated  by .H and .HU to the current heading text.  Also updated in table of contents
              & friends.

       HF     Font list for headings, '2 2 2 2 2 2 2' by default.  Non-numeric font names  may  also
              be used.

       HP     Point  size  list for headings.  By default, this is '0 0 0 0 0 0 0' which is the same
              as '10 10 10 10 10 10 10'.

       Index  Contains the string 'INDEX'.

       Indcmd Contains the index command.  Default value is '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 the string 'LIST OF FIGURES'.

       Lt     Contains the string 'LIST OF TABLES'.

       Lx     Contains the string 'LIST OF EXHIBITS'.

       Le     Contains the string 'LIST OF EQUATIONS'.

       Letfc  Contains the string 'Yours very truly,', used in .FC.

       Letapp Contains the string 'APPROVED:', used in .AV.

       Letdate
              Contains the string 'Date', used in .AV.

       LetCN  Contains the string 'CONFIDENTIAL', used in .LO CN.

       LetSA  Contains the string 'To Whom It May Concern:', used in .LO SA.

       LetAT  Contains the string 'ATTENTION:', used in .LO AT.

       LetSJ  Contains the string 'SUBJECT:', used in .LO SJ.

       LetRN  Contains the string 'In reference to:', used in .LO RN.

       Letns  is an array containing the different strings used in .NS.  It is really  a  number  of
              string  variables prefixed with Letns!.  If the argument doesn't exist, it is included
              between () with Letns!copy as a prefix and Letns!to as a 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 (with trailing space)
                     Letns!to      to (note leading space)

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

       MO1 - MO12
              Strings containing the month names 'January' through 'December'.

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

       Rp     Contains the string 'REFERENCES'.

       Tcst   Contains  the current status of the table of contents and list of figures, etc.  Empty
              outside of .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 the string '\(tm', the trade mark symbol.

       Verbnm Argument to .nm in the .VERBON command.  Default is 1.

   Number variables used in mm
       Aph    Print an appendix page for every new appendix  if this number  variable  is  non-zero.
              No output occurs if Aph is zero, but there is always an appendix entry in the 'List of
              contents'.

       Cl     Contents level (in the range 0 to 14).  The contents is saved if a  heading  level  is
              lower than or equal to the value of Cl.  Default is 2.

       Cp     Eject  page  between  list of table, list of figure, etc., if the value of Cp is zero.
              Default is 0.

       D      Debug flag.  Values greater than zero produce debug  information  of  increasing  ver-
              bosity.   A  value  of  1 gives information about the progress of formatting.  Default
              is 0.

       De     If set to 1, eject after floating display is output.  Default is 0.

       Dsp    If defined, it controls the space output before and after static displays.   Otherwise
              the value of Lsp is used.

       Df     Control  floating  keep  output.  This is a number in the range 0 to 5, with a default
              value of 5.  See .DF.

       Ds     If set to 1, use the amount of space stored in register Lsp before and after  display.
              Default is 1.

       Ej     If set to 1, eject page before each first-level heading.  Default is 0.

       Eq     Equation labels are left-adjusted if set to 0 and right-adjusted if set to 1.  Default
              is 0.

       Fs     Footnote spacing.  Default is 1.

       H1 - H7
              Heading counters

       H1dot  Append a dot after the level-one heading number if value is greater  than  zero.   De-
              fault is 1.

       H1h    A  copy of number register H1, but it is incremented just before the page break.  Use-
              ful in user-defined header macros.

       Hb     Heading break level.  A number in the range 0 to  14,  with  a  default  value  of  2.
              See .H.

       Hc     Heading  centering  level.   A number in the range 0 to 14, with a default value value
              of 0.  See .H.

       Hi     Heading temporary indent.  A number in the range 0 to 2, with a default value of 1.

                     0   no indentation, left margin
                     1   indent to the right, similar to '.P 1'
                     2   indent to line up with text part of preceding heading

       Hps    Heading pre-space level.  If the heading level is less than or equal to Hps, two lines
              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   Number of lines preceding .H if the heading level is greater than Hps.   Value  is  in
              units, default is 0.5.

       Hps2   Number of lines preceding .H if the heading level is less than or equal to Hps.  Value
              is in units, default is 1.

       Hs     Heading space level.  A number in the range 0 to  14,  with  a  default  value  of  2.
              See .H.

       Hss    Number  of lines following .H if the heading level is less than or equal to Hs.  Value
              is in units, default is 1.

       Ht     Heading numbering type.

                     0   multiple levels (1.1.1, 1.1.2, etc.)
                     1   single level

              Default is 0.

       Hu     Unnumbered heading level.  Default is 2.

       Hy     Hyphenation status of text body.

                     0   no hyphenation
                     1   hyphenation on, set to value 6

              Default is 0.

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

       L      Page length, only for command-line settings.

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

       Lf, Lt, Lx, Le
              Enable (1) or disable (0) the printing of List of figures, List of tables, List of ex-
              hibits and List of equations, respectively.  Default values are Lf=1, Lt=1, Lx=1,  and
              Le=0.

       Li     List indentation, used by .AL.  Default is 6.

       Limsp  A  flag  controlling the insertion of space between prefix and mark in automatic lists
              (.AL).

                     0   no space
                     1   emit space

       Ls     List space threshold.  If current list level is greater  than  Ls  no  spacing  occurs
              around lists.  Default is 99.

       Lsp    The vertical space used by an empty line.  The default is 0.5v in troff mode and 1v in
              nroff mode.

       N      Page numbering style.

                     0   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 style enabled.
                     4   page header is removed on the first page.
                     5   'section-page' and 'section-figure' numbering style enabled.

              Default is 0.  See also the number registers Sectf and Sectp.

       Np     A flag to control whether paragraphs are numbered.

                     0   not numbered
                     1   numbered in first-level headings.

              Default is 0.

       O      Page offset, only for command-line settings.

       Of     Format of figure, table, exhibit, and equation titles.

                     0   ". "
                     1   " - "

              Default is 0.

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

       Pi     Paragraph indentation.  Default is 5.

       Pgps   A  flag to control whether header and footer point size should follow the current set-
              tings or just change when the header and footer are defined.

                     0   Point size only changes to the current setting when  .PH,  .PF,  .OH,  .EH,
                         .OF, or .OE is executed.
                     1   Point size changes after every .S.  This is the default.

       Ps     Paragraph spacing.  Default is 1.

       Pt     Paragraph type.

                     0   left-justified
                     1   indented paragraphs
                     2   indented paragraphs except after .H, .DE, or .LE.

              Default is 0.

       Rpe    Set default value for second argument of .RP.  Default is 0.

       Sectf  A  flag controlling 'section-figures' numbering style.  A non-zero value enables this.
              See also register N.

       Sectp  A flag controlling 'section-page' numbering style.  A  non-zero  value  enables  this.
              See also register N.

       Si     Display indentation.  Default is 5.

       Verbin Indentation for .VERBON.  Default is 5n.

       W      Line length, only for command-line settings.

       .mgm   Always 1.

INTERNALS
       The  letter  macros  are 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 sets the number vari-
       ables Pt and Pi to 0 and 5, respectively.  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 initialize 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 is called for all pages.

       let@sg_type name title n flag [arg1 [arg2 [...]]]
              .SG is calling this macro only for letters; memorandums have its own processing.  name
              and title are specified through .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 the argument.

       .LO  is implemented as a general option-macro.  It demands that a string named Lettype is de-
       fined, where type is the letter type.  .LO then assigns the argument to the  string  variable
       let*lo-type.

FILES
       /usr/share/groff/1.22.4/tmac/m.tmac

       /usr/share/groff/1.22.4/tmac/mm/*.cov

       /usr/share/groff/1.22.4/tmac/mm/*.MT

       /usr/share/groff/1.22.4/tmac/mm/locale

AUTHORS
       The GNU version of the mm macro package was written by Jorgen Hagg <jh AT axis.se> of Lund, Swe-
       den.

SEE ALSO
       groff(1), troff(1), tbl(1), pic(1), eqn(1)
       groff_mmse(7) (only in Swedish locales)

groff 1.22.4                              23 March 2022                               GROFF_MM(7)
groff_mm(7)
NAME SYNOPSIS DESCRIPTION INTERNALS FILES AUTHORS SEE ALSO

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