Provided by: groff_1.18.1.1-11_i386 bug

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 are 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
       preferred 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
       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 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
              appendix 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
              arguments 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
              overrides the default indentation  of  the  list  items  set  by
              number  register Pi.  A third argument will prohibit printing of
              a blank line before each item.

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

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

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

       COVER [arg]
              COVER begins a coversheet  definition.   It  is  important  that
              .COVER appears before any normal text.  .COVER uses arg to build
              the filename /usr/share/groff/1.18.1/tmac/mm/arg.cov.  Therefore
              it is possible to create unlimited types of coversheets.  ms.cov
              is supposed to look like the ms coversheet.  .COVER  requires  a
              .COVEND  at  the  end  of  the coverdefinition.  Always use this
              order of the covermacros:
              .COVER
              .TL
              .AF
              .AU
              .AT
              .AS
              .AE
              .COVEND
              However, only .TL and .AU are required.

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

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

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

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

              Df register
              0    Displays are printed at  the  end  of  each  section  (when
                   section-page  numbering  is  active)  or  at the end of the
                   document.
              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
                   column (in multi-column mode).
              3    Print  one  display  if  there  is  enough  space  for  it,
                   otherwise it will be printed at the top of the next page or
                   column.
              4    Print  as  many  displays  that  will  fit in a new page or
                   column.  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
              compatibility 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
              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 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 [-L] 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
              specified..  This is used to  include  external  pictures,  just
              give  the  size of the picture.  -L will leftadjust the picture,
              the default is to center adjust.  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
              memorandum.   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
              normally 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 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
              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 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
              number 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
                   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 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.   Note  that  some  other implementations use
              3 3 2 2 2 2 2 as the default  value.   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
              controlled 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
              heading 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
              following 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
                   separate 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
              boldface.  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
              stderr  and is supposed to be written to filename.qrf.  Requires
              two passes with groff, this is handled  by  a  separate  program
              called  mmroff,  the  reason  is  that  groff is often installed
              without the unsafe operations that INITR requiered.   The  first
              pass  looks  for  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 [...]]
              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
              processing 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
              giving 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
              behaviour 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.
                   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 variable 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.  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
              create  as  many  columns  as  the  current line length permits.
              Column-size is the width of each column,  and  column-separation
              is  the  space  between  two columns.  Default separation is the
              column-size/15.  See also 1C.

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

       MT [arg [addressee]]
              Memorandum   type.    The   arg   is   part  of  a  filename  in
              /usr/share/groff/1.18.1/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 PROGRAMMERS NOTES printed
              3    Memorandum with ENGINEERS 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
              specified.  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 notations, 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
              justified  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
              spaces 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
              register 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
              necessary.   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
              specification.

       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-,  center-  and right-part is printed left-
              justified, centered and right justified.   The  character  %  is
              changed  to the current page number.  The default page-header is
              "’’- % -’’", the page number between two dashes.

       PS     Picture start (from pic).  Begins a picture  for  pic,  see  the
              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
              boldface.  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.
              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 [...]]]]
              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
              referenced 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
              tabpositions.

       TB [title [override [flag [refname]]]]
              Table  title,  arguments  are  the  same as for EC.  TB uses the
              number 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
              spacing 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
              CONTENTS, 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
              heading-level.       It      must      be      scaled,      like
              .ds Ci .25i .5i .75i 1i 1i.    The   indentation   is   normally
              controlled by the maxlength of headings 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
              languages.

       TE     Table end.  See TS.

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

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

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

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

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

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

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

       VERBON [flag [pointsize [font]]]
              Begin verbatim output using courier font.  Usually for  printing
              programs.   All character has equal width.  The pointsize can be
              changed with the  second  argument.   By  specifying  the  font-
              argument  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
                   control is available with the string-variable  Verbnm.   It
                   contains  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 [-T] [top [bottom]]
              Vertical  margin.  Adds  extra  vertical  top  and margin space.
              Option -T set the total space instead.  No argument  resets  the
              margin  to  zero  or  the  default (7v 5v) if -T was used. It is
              higly recommended that macro 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]]
              Begins  specification  of  the  writer  and  writer’s   address.
              Several  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
              numbervariable is non-zero.  No output  will  occur  if  Aph  is
              zero, but there will always be an appendix-entry in the ’List of
              contents’.

       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.

       L      Page length, only for command line settings.

       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.

       O      Page offset, only for command line settings.

       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.

       W      Line length, only for command line settings.

       .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
              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 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
              argument.

       .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

       Jörgen Hägg, Lund, Sweden <jh@axis.se>.

FILES

       /usr/share/groff/1.18.1/tmac/tmac.m

       /usr/share/groff/1.18.1/tmac/mm/*.cov

       /usr/share/groff/1.18.1/tmac/mm/*.MT

       /usr/share/groff/1.18.1/tmac/mm/locale

SEE ALSO

       groff(1), troff(1), tbl(1), pic(1), eqn(1)
       groff_mmse(7)