GROFF_MWWW(7)GROFF_MWWW(7)NAMEgroff_mwww - groff macros for authoring web pages
groff -mwww [ options ] file ...
This manual page describes the GNU -mwww macros, 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 rewrit‐
ten 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 will be automatically called (via the troffrc
file) if you use -Thtml.
To see the hyperlinks in action, please format this man page with the
Here is a summary of the functions found in this macro set.
.HTMLINDEX determine automatic link cut off
point for sections/headers
.BODYCOLOR specify colours on a web page
.BACKGROUND specify background image
.URL create a url using two parameters
.MAILTO create a html email address
.FTP create an ftp reference
.IMAGE include an image file
.HTML pass an html raw request to the
.TAG generate an html name tag from $1
.LINE create a full width horizontal rule
Output of the pic, eqn, refer, and tbl preprocessors is acceptable as
determines the cut off point for automatic link generation to
headings. By default all headings found in a troff document
have links created to them at the top of the html web page. It
maybe that many of the lower heading levels do not require
links. Alternatively some web pages may not need any heading
links at all, in which case:
will tell grohtml not to generate links. An HTMLINDEX of 2 will
mean that a heading
1.1.1 Some Title
will not be included in the links either as it is said to have a
heading level of three. Another method for switching automatic
headings is via the command line switch -P-l.
takes five parameters: foreground, background, active hypertext
link, hypertext link not yet visited, and visited hypertext link
the only parameter to this macro is the background image file.
URL generates a URL using either two or three arguments. $1 is the
name of the link, $2 is the actual URL, and $3 is optional stuff
to be printed immediately after $2. Hyphenation is disabled
while printing the actual URL; explicit breakpoints should be
inserted with the \: escape. Here is how to encode http://
groff.ffii.org/ ⟨homepage for groff⟩:
.URL "homepage for groff" http://\:groff.\:ffii.\:org/ :
If this is processed by a device other than -Thtml it appears
as: homepage for groff ⟨http://groff.ffii.org⟩. The URL macro
can be of any type; for example we can reference pic.html ⟨Eric
Raymond's pic guide⟩ by:
.URL "Eric Raymond's pic guide" pic.html
MAILTO generates 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, and an optional third argument is
stuff printed immediately after the second argument. Hyphen‐
ation is disabled while printing the actual email address. For
example, the groff maintainers are and This is achieved by the
.MAILTO firstname.lastname@example.org "Werner Lemberg"
.MAILTO Ted.Harding@nessie.mcc.ac.uk "Ted Harding" .
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).
FTP indicates that data can be obtained via ftp. The first argument
is the browser text and the second is the url. A third argu‐
ment, similar to the macros above, is intended for stuff printed
immediately after the second argument. The second and the third
parameter are optional. Hyphenation is disabled while printing
the actual URL. As an example, here the location of the
groff development distribution⟩. The macro example above was
.FTP "current groff development distribution" \
IMAGE allows the document to include pictures. The first argument is
the image file. The second optional argument gives the horizon‐
tal location; l puts the image to the left border, r to the
right. Any other value centers the image. The next two argu‐
ments are optional also: Argument three is the width in pixels
(default is 400 pixels if absent). The fourth argument is the
height in pixels (default is the width value if absent).
HTML all text after this macro is treated as raw html. If the docu‐
ment is processed without -Thtml then the macro is ignored.
This macro is a building block for other higher level macros.
For example, the BACKGROUND macro is defined as:
. HTML <body background=\$1>
TAG 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 reference.
This link was achieved via placing a TAG in the URL description
above; the source looks like this:
a URL using either two or three
$1 is the name of the link, $2 is the actual URL.
LINE generates a full width horizontal rule. Example:
LINKS requests that grohtml place the automatically generated links at
this position. For example:
SECTION HEADING LINKS
By default grohtml generates links to all section headings and places
these at the top of the html document. (See #LINK ⟨LINKS⟩ for details
of how to switch this off or alter the position.
LIMITATIONS OF GROHTML
Tbl information is currently rendered as a png image.
/freeware/gnu-tools/share/groff/1.17.2/tmac/mwww.tmac (a wrapper for
SEE ALSOgroff(1), gtroff(1)grohtml(1),
Grohtml was written by
Report bugs to the Include a complete, self-contained example that will
allow the bug to be reproduced, and say which version of groff you are
Groff Version 1.17.2 3 July 2001 GROFF_MWWW(7)