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GROFF_WWW(7)                                                                                    GROFF_WWW(7)

       groff_www - groff macros for authoring web pages

       groff -mwww [ options ] file ...

       This  manual  page describes the GNU -mwww macro package, which is part of the groff document format-ting formatting
       ting system.  The manual page is very a basic guide, and the html device driver  (grohtml)  has  been
       completely rewritten but still remains as in an alpha state.  It has been included into the distribu-tion distribution
       tion so that a lot of people have a chance to test it.  Note that this macro file will  be  automati-cally automatically
       cally called (via the troffrc file) if you use -Thtml.

       To see the hyperlinks in action, please format this man page with the grohtml device.

       Here is a summary of the functions found in this macro set.
       .JOBNAME            split output into multiple files
       .HX                 automatic heading level cut off;
                           $1 point for sections/headers
       .BCL                specify colours on a web page
       .BGIMG              specify background image
       .URL                create a url using two parameters
       .FTP                create an ftp reference
       .MTO                create a html email address
       .FTP                create an ftp reference
       .TAG                generate an html name
       .IMG                include an image file
       .PIMG               include png image
       .MPIMG              place png on the margin and
                           wrap text around it
       .HnS                begin heading
       .HnE                end heading
       .LK                 emit automatically collected links.
       .HR                 produce a horizontal rule
       .NHR                suppress automatic generation of rules.
       .HTL                only generate HTML title
       .HEAD               add data to <head> block
       .ULS                unorder list begin
       .ULE                unorder list end
       .OLS                ordered list begin
       .OLE                ordered list end
       .DLS                definition list begin
       .DLE                definition list end
       .LI                 insert a list item
       .DC                 generate a drop capital
       .HTML               pass an html raw request to the
                           device driver
       .CDS                code example begin
       .CDE                code example end

       Output of the pic, eqn, refer, and tbl preprocessors is acceptable as input.

       .JOBNAME filename
              Split  output  into  multiple  HTML files.  A file is split whenever a .SH or .NH 1 is encoun-tered. encountered.
              tered.  Its argument is the file stem name for future output files.  This option is equivalent
              to grohtml's -j option.

       .HX n  Specify the cut off depth when generating links from section headings.  For example, a parame-ter parameter
              ter of 2 would cause grohtml to generate a list of links for  .NH 1  and  .NH 2  but  not  for
              .NH 3.  Whereas

                     .HX 0

              will  tell grohtml that no heading links should be created at all.  Another method for turning
              automatic headings off is by issuing the the command line switch -P-l to groff.

       .BCL foreground background active not-visited visited
              This macro takes five parameters: foreground, background,  active  hypertext  link,  hypertext
              link not yet visited, and visited hypertext link colour.

       .BGIMG imagefile
              the only parameter to this macro is the background image file.

       .URL url [description] [after]
              generates  a  URL using either one, two or three arguments.  The first parameter is the actual
              URL, the second is the name of the link, and the third is optional stuff to be printed immedi-ately immediately
              ately  afterwards.   If description and after are absent then the url becomes the anchor text.
              Hyphenation is disabled while printing the actual URL; explicit breakpoints should be inserted
              with the \: escape.  Here is how to encode foo <>:

                     .URL http://\:foo.\:org/ foo :

              If this is processed by a device other than -Thtml it appears as:

                     foo <>:

              The URL macro can be of any type; for example we can reference Eric Raymond's pic guide
              <pic.html> by:

                     .URL pic.html "Eric Raymond's pic guide"

       .MTO address [description] [after]
              Generate an email html reference.  The first argument is mandatory as the email address.   The
              optional  second  argument  is the text you see in your browser If an empty argument is given,
              address is used instead.  An optional third argument is stuff printed immediately  afterwards.
              Hyphenation is disabled while printing the actual email address.  For example,

              Joe User <> was achieved by the following macro:

                     .MTO "Joe User"

              Note  that  all  the  URLs  actually are treated as consuming no textual space in groff.  This
              could be considered as a bug since it causes some  problems.   To  circumvent  this,  www.tmac
              inserts a zero-width character which expands to a harmless space (only if run with -Thtml).

       .FTP url [description] [after]
              indicates  that data can be obtained via ftp.  The first argument is the url and the second is
              the browser text.  A third argument, similar to  the  macros  above,  is  intended  for  stuff
              printed immediately afterwards.  The second and the third parameter are optional.  Hyphenation
              is disabled while printing the actual URL.  As an example, here the location of the GNU ftp
              server <>.  The macro example above was specified by:

                     .FTP ftp://\ "GNU ftp server" .

       .TAG name
              Generates an html name tag from its argument.  This can then be referenced using the URL
              <#URL> macro.  As you can see, you must precede the tag name with # since it is a local refer-ence. reference.
              ence.  This link was achieved via placing a TAG in the URL description above; the source looks
              like this:

                     .B URL
                     .TAG URL
                     a URL using either two or three arguments.

       .IMG [-R|-L|-C] filename [width] [height]
              Include a picture into the document.  The first argument is the  horizontal  location:  right,
              left,  or center (-R, -L, or -C).  Alignment is centered by default (-C).  The second argument
              is the filename.  The optional third and fourth arguments are the width and  height.   If  the
              width  is  absent  it  defaults  to 1 inch.  If the height is absent it defaults to the width.
              This maps onto an html img tag.  If you are including a png image then it is advisable to  use
              the PIMG macro.

       .PIMG [-R|-L|-C] filename [width [height]]
              Include  an  image  in  PNG  format.   This macro takes exactly the same parameters as the IMG
              macro; it has the advantage of working with postscript and html  devices  also  since  it  can
              automatically  convert  the  image  into  the  EPS format, using the following programs of the
              netpbm package: pngtopnm, pnmcrop, and pnmtops.  If the document isn't processed  with  -Thtml
              it is necessary to use the -U option of groff.

       .MPIMG [-R|-L] [-G gap] filename [width [height]]
              Place  a  PNG image on the margin and wrap text around it.  The first parameters are optional.
              The alignment: left or right (-L or -R) specifies the margin where the picture is  placed  at.
              The  default  alignment is left (-L).  Optionally, -G gap can be used to arrange a gap between
              the picture and the text that wraps around it.  The default gap width is zero.
              The first non-optional argument is the filename.  The optional  following  arguments  are  the
              width  and  height.  If the width is absent it defaults to 1 inch.  If the height is absent it
              defaults to the width.  Example:

                     .MPIMG -L -G 2c foo.png 3c 1.5c

              The height and width may also be given as percentages. The PostScript  device  calculates  the
              width from the .l register and the height from the .p register. For example:

                     .MPIMG -L -G 2c foo.png 15%

       .HnS n Begin  heading.   The  numeric  heading level n is specified by the first parameter.  Use this
              macro if your headings contain URL, FTP or MTO macros.  Example:

                     .HnS 1
                     GNU Troff
                     .URL (Groff)
                     -- a
                     .URL GNU
                     Hosted by
                     .URL FFII .

              In this case you might wish to disable automatic links to headings.  This can be done via -P-l
              from the command line.

       .HnE   End heading.

       .LK    Force  grohtml  to  place  the automatically generated links at this position.  If this manual
              page has been processed with -Thtml those links can be seen right here.

       .HR    Generate a full-width horizontal rule for -Thtml.  No effect for all other devices.

       .NHR   Suppress generation of the top and bottom rules which grohtml emits by default.

       .HTL   Generate an HTML title only.  This differs from the TL macro of the  ms  macro  package  which
              generates  both  an HTML title and an <H1> heading.  Use it to provide an HTML title as search
              engine fodder but a graphic title in the document.  The macro terminates when a space or break
              is seen (.sp, .br).

       .HEAD  Add arbitrary HTML data to the <head> block.  Ignored if not processed with -Thtml.  Example:

                     .HEAD "<link \
                       rel=""icon"" \
                       type=""image/png"" \

       .HTML  All text after this macro is treated as raw html.  If the document is processed without -Thtml
              then the macro is ignored.  Internally, this macro is used  as  a  building  block  for  other
              higher-level macros.

              For example, the BGIMG macro is defined as

                     .de BGIMG
                     .   HTML <body background=\$1>

       .DC l text [color]
              Produce  a  drop  capital.   The first parameter is the letter to be dropped and enlarged, the
              second parameter text is the ajoining text whose height the first letter  should  not  exceed.
              The optional third parameter is the color of the dropped letter.  It defaults to black.

       .CDS   Start displaying a code section in constant width font.

       .CDE   End code display

       By  default  grohtml  generates links to all section headings and places these at the top of the html
       document. (See LINKS <#LK> for details of how to switch this off or alter the position).

       tbl information is currently rendered as a PNG image.


       groff(1), troff(1) grohtml(1), netpbm(1)

       grohtml was written by

       Gaius Mulley <>

       Report bugs to the

       Groff Bug Mailing List <>.  Include a complete,  self-contained  example  that  will
       allow the bug to be reproduced, and say which version of groff you are using.

Groff Version 1.19.2                             26 May 2005                                    GROFF_WWW(7)

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