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groff_www(7)

Miscellaneous Information Manual                                  GROFF_WWW(7)



NAME
       groff_www - groff macros for authoring web pages


SYNOPSIS
       groff -mwww [ options ] file ...

DESCRIPTION
       This  manual  page describes the GNU -mwww macro package, which is part
       of the groff document formatting 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 distribution so that a lot of people have a chance to test it.
       Note that this macro file is  automatically  called  (via  the  troffrc
       file) if you use -Thtml or -Txhtml.

       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.

       tab(@); l l.  .JOBNAME@split output into multiple  files  .HX@automatic
       heading level cut off .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 ref‐
       erence  .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@defi‐
       nition  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  .ALN@place  links on left of main text.
       .LNS@start a new two-column table with links in the left.  .LNE@end the
       two-column table.  .LINKSTYLE@initialize default url attributes.

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

REQUESTS
       .JOBNAME filename
              Split output into multiple HTML files.  A file is split whenever
              a  .SH  or  .NH 1 is encountered.  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 parameter 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

              tells 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  immediately
              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 ⟨http://foo.org/⟩:

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

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

                     foo ⟨http://foo.org⟩:

              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  manda‐
              tory  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
              ⟨joe@user.org⟩ was achieved by the following macro:

                     .MTO joe@user.org "Joe User"

              Note that all the URLs actually are treated as consuming no tex‐
              tual 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 or -Txhtml).

       .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 argu‐
              ment, 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
              ⟨ftp://ftp.gnu.org/⟩.  The macro example above was specified by:

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

       .TAG name
              Generates an html name tag from its argument.  This can then  be
              referenced  using  the  URL ⟨2⟩ macro.  As you can see, you must
              precede the tag name with # since it is a local reference.  This
              link  was  achieved  via  placing  a  TAG in the URL description
              above; the source looks like this:

                     .TP
                     .B URL
                     generates
                     .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  work‐
              ing with postscript and html devices also since it can automati‐
              cally 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  or  -Txhtml  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
                     .HR
                     GNU Troff
                     .URL http://groff.ffii.org (Groff)
                     — a
                     .URL http://www.gnu.org/ GNU
                     project.
                     Hosted by
                     .URL http://ffii.org/ FFII .
                     .HR
                     .HnE

              In  this case you might wish to disable automatic links to head‐
              ings.  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 or
              -Txhtml those links can be seen right here.

       .HR    Generate a full-width horizontal rule for  -Thtml  and  -Txhtml.
              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 termi‐
              nates when a space or break is seen (.sp, .br).

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

                     .HEAD "<link \
                       rel=""icon"" \
                       type=""image/png"" \
                       href=""http://foo.org//bar.png""/>"

       .HTML  All  text after this macro is treated as raw html.  If the docu‐
              ment is processed without -Thtml or -Txhtml 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 adjoining
              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

       .ALN [color] [percentage]
              Place section heading links automatically to  the  left  of  the
              main  text.  The color argument is optional and if present indi‐
              cates which HTML background color is to be used under the links.
              The  optional percentage indicates the amount of width to devote
              to displaying the links.  The default values are #eeeeee and  30
              for color and percentage width, respectively.  This macro should
              only be called once at the beginning  of  the  document.   After
              calling this macro each section heading emits an HTML table con‐
              sisting of the links in the left and the  section  text  on  the
              right.

       .LNS   Start  a  new  two-column  table  with links in the left column.
              This can be called if the document has text before the first .SH
              and  if  .ALN is used.  Typically this is called just before the
              first paragraph and after the main title as  it  indicates  that
              text  after  this point should be positioned to the right of the
              left-hand navigational links.

       .LNE   End a two-column table.  This should be called at the end of the
              document if .ALN was used.

       .LINKSTYLE color [ fontstyle [ openglyph closeglyph ] ]
              Initialize  default  url attributes to be used if this macro set
              is not used with the HTML device.   The  macro  set  initializes
              itself with the following call

                     .LINKSTYLE blue C \[la] \[ra]

              but these values will be superseded by a user call to LINKSTYLE.

SECTION HEADING LINKS
       By  default  grohtml generates links to all section headings and places
       these at the top of the html document.  (See LINKS ⟨2⟩ for  details  of
       how to switch this off or alter the position).

LIMITATIONS OF GROHTML
       tbl information is currently rendered as a PNG image.

FILES
       /usr/share/groff/1.22.3/tmac/www.tmac

BUGS
       Report bugs to the Groff Bug Mailing List ⟨bug-groff@gnu.org⟩.  Include
       a complete, self-contained example that will allow the bug to be repro‐
       duced, and say which version of groff you are using.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       box; cbp-1 | cbp-1 l | l .  ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
       ity   text/groff = Stability Uncommitted


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

COPYING
       Copyright © 2000-2014 Free Software Foundation, Inc.

       This file is part of groff.

       groff is free software; you can redistribute it and/or modify it  under
       the  terms  of  the GNU General Public License as published by the Free
       Software Foundation, either version 3  of  the  License,  or  (at  your
       option) any later version.

       groff  is  distributed  in the hope that it will be useful, but WITHOUT
       ANY WARRANTY; without even the implied warranty of  MERCHANTABILITY  or
       FITNESS  FOR  A PARTICULAR PURPOSE.  See the GNU General Public License
       for more details.

       You should have received a copy of the GNU General Public License along
       with this program. If not, see GPLs ⟨http://www.gnu.org/licenses/⟩.

AUTHORS
       grohtml was written by Gaius Mulley ⟨gaius@glam.ac.uk⟩



NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source                was                downloaded                from
       https://ftp.gnu.org/gnu/groff/groff-1.22.3.tar.gz.

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/groff.



Groff Version 1.22.3            4 November 2014                   GROFF_WWW(7)
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