Provided by: groff_1.20.1-5_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 are implemented.

       ·      The macros OK and PM are not implemented.

       ·      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/1.20.1/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-letter
       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  variables.   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  register  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 backwards 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 printing of a blank line before each item.

       APP name text
              Begin  an  appendix  with name name.  Automatic naming occurs if
              name is "".  The appendices 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 diagrams 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.

              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 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; it is replaced with an empty lin if there is  a
              second argument.  The string ‘Date’ can be changed with variable
              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 after the  mark.   text-
              indent  sets  the  indentation  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.

       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/1.20.1/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

              Df register

       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 together on the same page, unless it is longer
              than the height of the page.  DS can be nested arbitrarily.

              format

              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 numbering.

              flag

              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 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 is only
              printed if number register Le is 1.   The  default  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 active.  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 justification (adjust), and 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

              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 stringvariable 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 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

                     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 centerered.

                     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 controls 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 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.   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  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
                                    This  macro  is  called  just  before  the
                                    printing of the  heading.   The  following
                                    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 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 at the beginning of the file.

              HM [arg1 [arg2 [... [arg14]]]]
                     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
                     ""     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

              INITR filename
                     Initialize the refence macros.  References are written to
                     stderr and are supposed to be written to  ‘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  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 number 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  processing  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 whitin 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 argmuent 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 determined  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 controlled 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 predefined list types 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 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.  See also section INTERNALS.

              LO type [arg]
                     Specify  options  in letter (see .LT).  This is a list of
                     the standard options:

              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-separation  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/1.20.1/tmac/mm/*.MT’.    Memorandum
                     types  0  to  5  are  supported,  including 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 columns.  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
                     entire  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
                     variables 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 register 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
                     indents 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 default (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 [-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.   The
                     optional width and height can also be given to resize the
                     picture.

              PE     Picture end.  Ends a picture for pic(@MAN1EXT).

              PF [arg]
                     Page footer.  PF sets the  line  to  be  printed  at  the
                     bottom  of  each page.  Empty by default.  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-partcenter-partright-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
                     indentation.

              RP [arg1 [arg2]]
                     Produce  reference  page.   This  macro  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
                     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

                     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.

              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, respectively.

              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 defined.  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 reference 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 section
                     INTERNALS.

              SK [pages]
                     Skip pages.  If pages is 0 or omitted, a skip to the next
                     page  occurs  unless  it is already 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  concatenated,  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
                     before 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  register 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 arguments.  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’,  ‘Exhibit’,  ‘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
                     processing.

              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 ‘CONTENTS’.  See TC.

              VERBON [flag [point-size [font]]]
                     Begin  verbatim  output  using Courier font.  Usually for
                     printing programs.  All characters 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.

              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 instead.  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.  Adds  extra  vertical  top  and  margin
                     space.   Option  -T  sets the total space instead.  If no
                     argument is given, reset  the  margin  to  zero,  or  the
                     default  (‘7v  5v’)  if  -T  has  been used.  It is higly
                     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 specified with empty WA/WE pairs,
                     but only one address.

              WE     End the address specification after .WA.

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

   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 \"
                     Letns!to     " to

       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  verbosity.  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.  Default is 1.

       H1h    A  copy of number register H1, but it is incremented just before
              the page break.  Useful 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.

       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 14

              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 exhibits 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.

              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 settings or just change when the  header  and
              footer are defined.

       Ps     Paragraph spacing.  Default is 1.

       Pt     Paragraph type.

              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  variables  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 defined, where type is  the  letter  type.   .LO  then
       assigns the argument to the string variable let*lo-type.

AUTHOR

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

FILES

       /usr/share/groff/1.20.1/tmac/m.tmac

       /usr/share/groff/1.20.1/tmac/mm/*.cov

       /usr/share/groff/1.20.1/tmac/mm/*.MT

       /usr/share/groff/1.20.1/tmac/mm/locale

SEE ALSO

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