GROHTMLSection: User Commands (1)
Updated: 24 November 2004
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NAMEgrohtml - html driver for groff
grohtml [ -bhlnprv ] [ -a aa-text-bits ] [ -D dir ] [ -F dir ] [ -g aa-graphic-bits ] [ -i resolution ] [ -I image-stem ] [ -j filename ] [ -o image-vertical-offset ] [ -s size ] [ -S level ] [ files... ]
DESCRIPTIONThe grohtml front end (which consists of a preprocessor, pre-grohtml, and a device driver, post-grohtml) translates the output of GNU troff to html. Users should always invoke grohtml via the groff command with a -Thtml option. If no files are given, grohtml will read the standard input. A filename of - will also cause grohtml to read the standard input. Html output is written to the standard output. When grohtml is run by groff options can be passed to grohtml using groff's -P option.
- Number of bits of antialiasing information to be used by text when generating png images. The default is~4 but valid values are 0, 1, 2, and~4. Note your version of gs needs to support the -dTextAlphaBits and -dGraphicAlphaBits options in order to exploit antialiasing. A value of~0 stops grohtml from issuing antialiasing commands to gs.
- Initialize the background color to white.
- Inform grohtml to place all image files into directory dir.
- Prepend directory dir/devname to the search path for font and device description files; name is the name of the device, usually html.
- Number of bits of antialiasing information to be used by graphics when generating png images. The default is~4 but valid values are 0, 1, 2, and~4. Note your version of gs needs to support the -dTextAlphaBits and -dGraphicAlphaBits options in order to exploit antialiasing. A value of~0 stops grohtml from issuing antialiasing commands to gs.
- Generate section and number headings by using <B>...</B> and increasing the font size, rather than using the <Hn>...</Hn> tags.
- Select the resolution for all images. By default this is 100 pixels per inch. Example: -i200 indicates 200 pixels per inch.
- Determine the image stem name. If omitted grohtml uses grohtml-XXX (XXX is the process ID).
- Inform grohtml to split the html output into multiple files. The filename is the stem and specified section headings (default is level one) start a new file, named filename-n.html.
- Turn off the production of automatic section links at the top of the document.
- Generate simple heading anchors whenever a section/number heading is found. Without the option the anchor value is the textual heading. This can cause problems when a heading contains a `?' on older versions of some browsers (Netscape). This flag is automatically turned on if a heading contains an image.
- Specify the vertical offset of images in points.
- Display page rendering progress to stderr. grohtml only displays a page number when an image is required.
- Turn off the automatic header and footer line (html rule).
- -s size
- Set the base point size of the source file. Thereafter when this point size is used in the source it will correspond to the html base size. Every increase of two points in the source will yield a <big> tag, and conversely when a decrease of two points is seen a <small> tag is emitted.
- When splitting html output, split at the heading level (or higher) defined by level.
- Print the version number.
USAGEThere are styles called R, I, B, and BI mounted at font positions 1 to~4.
DEPENDENCIESgrohtml is dependent upon the png utilities (pnmcut, pnmcrop, pnmtopng) and GhostScript (gs). pnmtopng (version 2.37.6 or greater) and pnmcut from the netpbm package (version 9.16 or greater) will work also. It is also dependent upon psselect from the PSUtils package. Images are generated whenever a table, picture, equation or line is encountered.
BUGSGrohtml has been completely redesigned and rewritten. It is still beta code.
SEE ALSOafmtodit(1), groff(1), troff(1), psbb(1), groff_out(5), groff_font(5), groff_char(7)