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PP2HTML(1) |
User Contributed Perl Documentation |
PP2HTML(1) |
pp2html - PerlPoint to HTML converter
This man page describes $Revision: 1.22 $ from
PerlPoint::Converters Package 1.0205
pp2html --help
pp2html [@options_file] [options] slide_text
"pp2html" creates a set of HTML files for a
foilset based on a simple textfile slide_text. Due to its formatting
features and the capability of creating navigation, table of contents and
index pages, "pp2html" is also a suitable
tool for writing online documentation.
A slide is normally made up by a header and a number of bullet
items:
=Example of a Slide
* Contains a head line ("Example of a Slide")
* Should have some bullet items
* May have footer and/or header section with company logo
and navigation links
The intention of "pp2html" is to
simply write down your headers and bullet items just like above in an ASCII
file and then automatically create a set of HTML files ready for
presentation.
The main features of "pp2html"
are:
The following documentation describes in detail the syntax of a
pp2html input file and all options of
"pp2html".
The format for the "pp2html" input files is
called "PerlPoint"-Format. For a detailed
and possibly more up-to-date description of the
"PerlPoint" language please refer to the
excellent POD documentation of the PerlPoint::Parser Module by Jochen
Stenzel.
There are the following main components of an input file for
"pp2html":
- Comments
- Headers
- Bullet Items
- Numbered Lists
- Definition Lists
- Paragraphs
- Blocks
- Verbatim Blocks
Lines which start with a double slash "//" are
treated as comments. They are not included in the slides.
Headers are lines which start with one or more
"=" signs. The number of
"=" signs determines the level of the
header:
=This is a level 1 header
==This is a level 2 header
It is necessary to put a blank line after the header. If you use
headers of different levels then you get a structured document with chapter
numbering e.g.
1 First chapter
1.1 Subsection 1
1.2 Subsection 2
2 Second chapter
The chapter numbers depend on the position of the page and the
level of its header.
A bullet item is indicated by an asterisk "*"
in the first column.
* Item one is very long
and continued on the next line
* Item 2
* Item Three
If you use hash signs "#"
instead of asterisks, the list will autmatically be a numbered list:
# First
# Second
Note: It is important to put a blank line after each bullet
item, otherwise the text on the following line belongs to the same
bullet.
Text which is not indented is treated as a normal paragraph. In HTML terminology
this is a <P> ... </P> container.
Text which is indented by one ore more blanks will be put in a colored box. The
text will be treated as pre formatted. Special formatting tags (see
below) are still applied.
The HTML representation is a <TABLE> with colored background
and the text itself is put into a <PRE> ... </PRE>
container.
Verbatim Blocks are copied as is into the HTML page. Special formatting
tags (see below) are not applied. (Only HTML meta characters are escaped, for
example the "<" or ">" sign.) This means that
Verbatim Blocks are suitable for code examples: Just cut and paste your piece
of code into the "pp2html" input file and
put the verbatim box markers around:
<<END_OF_BOX
sub verbatim_text
{
for example some piece of code;
}
END_OF_BOX
The block begins with `<<MARK' and ends with the text
"MARK" on a separate line. This is like a
"here document" in perl or in a C-shell.
Note: There must not be white space between << and MARK.
Alternatively you can use the \INCLUDE tag with the example
option:
\INCLUDE{type=example file="filename"}
Some rudimentary formatting is also supported by
"pp2html". It is similar syntax as in POD:
\C<this is code>
\B<bold face>
\I<italic>
\E<lt> \E<gt>
\E<uml>
\U<underline>
\SUP<superscript>
\SUB<subscript>
Note that the tags are preceeded by a backslash. This is necessary
because the "PerlPoint" format knows
several tags that are longer than one character. The general form of
"PerlPoint" tags is
\TAGNAME{param1=value1 param2=value2 ...}<tag body>
The parameter list is optional and enclosed in curly braces.
It is possible to switch the box color from case to case with the
following tags:
\BOXCOLORS{bg=yellow}
\BOXCOLORS{fg=blue}
or in short: \BOXCOLORS{bg=yellow fg=blue}
There is a special tag
\F{color=value size=value face=typeface}<text>
which allows to set color and size and the typeface for a text.
This is translated to the HTML <FONT> tag.
In order to use internal hyperlinks there must be targets for those links. A
link target or "anchor" is defined by the
following tag:
\A{name="target_name"}
An internal link to this target is written in the form:
\PAGEREF{name=target_name}
\SECTIONREF{name=target_name}
The first link is replaced with the page number of the page which
contains the target. The second link is replaced with the page header of the
corresponding page.
NOTE: Each page automatically gets an anchor with the page header
as target name. For this reason it is possible to use SECTIONREF tags with
the name=page_title parameter to get inernal links to each page.
External hyperlinks have the form:
\L{url=http://wwwpixel.de}<http//www.pixel.de>
A cross reference to an internal target has the form:
\XREF{name=target_name}<text of cross ref>
Index entries are defined by
\X<word>
\X{mode=index_only}<text, special>
The latter form creates an index entry which appears only in the
index. The "word" from the the first form appears in the current
text and in the index.
Note: The index_only form is useful, for example, if
you want to have a word from a heading included in the index. The index tag
is not allowed inside of a heading.
- --activeContents
- PerlPoint sources can embed Perl code which is evaluated while the source
is parsed. For reasons of security this feature is deactivated by default.
Set this option to activate it. You can use --safeOpcode to fine
tune which operations shall be permitted.
- --cache
- parsing of one and the same document several times can be accelerated by
activating the PerlPoint parser cache by this option. The performance
boost depends on your document structure.
Cache files are written besides the source and named
".<source file>.ppcache".
It can be useful to (temporarily) deactivate the cache to get
correct line numbers in parser error messages (currently numbers cannot
always reported correctly with activated cache because of a special perl
behaviour).
- --cacheCleanup
- PerlPoint parser cache files grow (with every modified version of a source
parsed) because they store expressions for every parsed variant of a
paragraph. This is usually uncritical but you may wish to clean up the
cache occasionally. Use this option to perform the task (or remove the
cache file manually).
- --safeOpcode=opcode
- If active contents is enabled (--activeContents), Perl code
embedded into the translated PerlPoint sources will be evaluated. To keep
security this is done via an object of class Safe which restricts
code to permitted operations. By this option you can declare which opcode
(or opcode tag) is permitted. Please see the Safe and Opcode
manual pages for further details. (These modules come with perl.)
Pass "ALL" to allow
everything.
This option can be used multiply.
You may want to store these options in default option files,
see below for details.
For the examples used in ppdoc.pp you should use
--safeOpcode=:filesys_open --safeOpcode=:still_to_be_decided --safeOpcode=:browse
- --set=flag
- This option allows you to pass certain settings - of your choice - to
active contents (like conditions) where it can be accessed via the
$PerlPoint hash reference. For example, your
PerlPoint code could contain a condition like
? $PerlPoint->{userSettings}{special}
Special part.
? 1
The special part enclosed by the two conditions would then be
processed only if you call
"pp2html" with
--set special
and if active contents was enabled by -active, of
course.
This option can be used multiply.
- --trans_table=filename
- The "--trans_table" option specifies a
the filename of a tanslation table for non ASCII characters like german
Umlaute etc. The characters are specifed as octal numbers as in the
folowing example:
#Translation Table for German Umlaute (this is the default)
\334 Ü
\374 ü
\326 Ö
\366 ö
\304 Ä
\344 ä
\337 ß
- --filter=regexp
- This specifies a regular expression
"regexp" which should match all allowed
languages for EMBEDed code. The expression is evaluated caseinsensitively.
Example: --filter="perl|html"
- --nocopyright
- suppresses the copyright message;
- --noinfo
- supresses runtime informations;
- --nowarn
- supresses warnings;
- --quiet
- a shortcut for "--nocopyright --noinfo --nowarn": all non
critical runtime messages are suppressed;
- --count_only
- If this option is set, only a counter will indicate that slides are
created. Otherwise for all slides the full header is printed while
generating the slides.
- --box_color=color
- --boxtext_color=color
- Set background and forground colors for block paragraphs
- --bgcolor=color
- --fgcolor=color
- --idx_bgcolor=color
- --idx_fgcolor=color
- --toc_bgcolor=color
- --toc_fgcolor=color
- --top_bgcolor=color
- --top_fgcolor=color
- --bot_bgcolor=color
- --bot_fgcolor=color
- --linkcolor=color
- --alinkcolor=color
- --vlinkcolor=color
- Set the background and foreground color for all HTML pages. The
"idx_" and
"toc_" options are for the index page
and table of contents respectively. The last three options set the colors
for hyperlinks, active links and followed links. The linkcolor options can
also be prefixed with "top",
"bot",
"toc" and
"idx" for example
"--toc_linkcolor white".
- --back_image
- --toc_back_image
- --idx_back_image
- --top_back_image
- --bot_back_image
- Set background image for nomal slides, table of contents, index, top frame
or bottom frame.
- --top_template=filename
- --top_idx_template=filename
- --top_toc_template=filename
- --bottom_template=filename
- --bottom_idx_template=filename
- --bottom_toc_template=filename
- --nav_template=filename
- --nav_top_template=filename
- --nav_bottom_template=filename
- Filenames for template files (in HTML format). The bottom template is
appended to each slide. Can be used to create footers with navigation,
copyright note etc. The top template is inserted at the top of each slide.
The "_idx_" templates are
used for the index slide and the
"_toc_" templates are used for the
table of contents slide.
The "nav_top" and
"nav_bottom" templates are included in
all pages on top, just below the
"top_template" and at the bottom just
before the "bottom_template". If the
"--nav_template" option is set, the
"nav_template" will be used on top and
at the bottom unless you specify
"--nav_top_template" or
"--nav_bottom_template". The latter
both will overwrite the
"--nav_template" option.
NOTE: Templates should not contain <HTML>,
<HEAD>, <TITLE> or <BODY> tags. These tags are always
written by "pp2html". There is,
however, one exception: If you use the
"--frame_set" option without java
script navigation (see below), then the top and bottom HTML templates
should be directly included in the frame set template and should be full
HTML files with HEAD and BODY lines.
The following keywords and "function calls" are
substituted with corresponding values when the templates are included.
(Everything should be completed in the line of its beginning, there's no
multiline support built in yet.)
TITLE text specified by --title option
URL_HERE hyperlink to the current page
URL_NEXT hyperlink to next page
TXT_NEXT header of next page
URL_PREV hyperlink to previous page
TXT_PREV header of previous page
URL_FIRST hyperlink to first page
TXT_FIRST header of first page
URL_LAST hyperlink to last page
TXT_LAST header of last page
URL_UP hyperlink to upper page
TXT_UP header of upper page
URL_DOWN hyperlink to subsection page
TXT_DOWN header of subsection page
URL_CONTENTS hyperlink to contents page
TXT_CONTENTS text specified by --contents_header
URL_INDEX hyperlink to index page
TXT_INDEX text specified by --index_header
LABEL_NEXT label text for "next" link
LABEL_PREV label text for "previous" link
LABEL_CONTENTS label text for "contents" link
LABEL_INDEX label text for "index" link
PAGE page or chapter number
PAGE_CNT number of pages
PAGE_PATH a clickable "path" of parent slides intended for navigation in deeply nested documents
TOP_LEFT_TXT text for left side in top templates, see --top_left_txt
TOP_RIGHT_TXT text for right side in top templates, see --top_right_txt
TOP_MIDDLE_TXT text for middle in top templates, see --top_middle_txt
BOT_LEFT_TXT text for left side in bottom templates, see --bot_left_txt
BOT_RIGHT_TXT text for right side in bottom templates, see --bot_right_txt
BOT_MIDDLE_TXT text for middle in bottom templates, see --bot_middle_txt
LOGO_IMAGE_FILENAME text for the logo image filename in template files,
see --logo_image_filename
START_ADDRESS start address URL as specified --startaddress
DATE(<format>) date (and/or time) in the specified C<POSIX::strftime> format,
(e.g. "DATE(%s)")
VAR(<variable>) insert the current value of the PerlPoint variable $<variable>
(e.g. "VAR(version)")
OPT(<option>, <part>) optionally insert <part> into the template, depending on whether
C<pp2html> option <option> is set or not. The inserted part might contain
further keywords. Make sure everything is places in I<one> line, and there
is no additional closing paranthesis. Example: "OPT(insert_date, DATE(%c))".
- --top_left_txt
- --top_right_txt
- --top_middle_txt
- --bot_left_txt
- --bot_right_txt
- --bot_middle_txt
- --logo_image_filename
- These texts will be used to replace the corresponding keywords in template
files which are used in the slides. See for example the orange_slides
style.
There is another option which allows to define your own
keywords which will be replaced with values from an option:
- --define name=value
- This option is a multiple option (may be specified more than once). For
example: Specifiy "--define
main_bg_color=#CCCCEE" "--define
main_fg_color=#0000CC" in your options file. Then you can use
"MAIN_BG_COLOR" and "MAIN_FG_COLOR" in your own
template files and these texts are replaced with the values specified in
the option file. This can be useful for easily switching colors in your
self defined style by changing the
"--define" options in the options
file.
- --boxtext_bold=ON
- --boxtext_bold=OFF
- Text in colored textboxes will be printed bold or normal.
- --box_border=width
- Set the border width of block paragraphs.
- --box_width=width
- Set the width of block paragraphs. This assures that all colored boxes
have the same width.
Example: --box_width="80%"
- --bullet=filename
- Filename of a GIF or JPEG image which is used for the bullets in bullet
lists. This option can be used more than once. In this case the first
occurance is used for top level lists, the second occurance for second
level lists etc.
NOTE: The filename must be given as an absolute
pathname or relative to the directory where the
"pp2html" program is started (i. e.
relative to the directory where the PerlPoint input file resides). When
the --style option is used, the filename must be specified relative to
the directory where the style is defined. Normally all bullet images for
a style reside in the style directory.
- --bullets_align_middle
- If this option is set, bullets are aligend to MIDDLE. Otherwise they are
aligned to TOP. This options may yield better results for presentation
slides with large font size.
- --block_indent=m
- Indent each block by m levels (i. e. put m <UL> </UL>
containers around the block This can be used to shift the block boxes to
the right. Looks better if a block paragraph occurs within a bullet
list.
- --center_headers
- Page Headers are centered. Default is no centering.
- --contents_header=text
- Heading for contents page. Default is Contents
- --frame_set=filename
- filename for frame set template. This activates the frame set
generation.
- --frame_start=filename
- filename of the startfile for the frame set. The frame_set template is
copied to this file in the slide_dir directory.
- --contents_target
- This is used as the target frame in all hyperlinks to the table of
contents. Useful for example if you have a frame set without an Index
frame. In this case it might be usefull to set the
"--contents_target" option to
"Data".
- --contents_table_width=m
- Specifies the width of the table used for the table of contents (unless
the tree applet is uses). A value of 0 suppresses the width option in the
HTML table.
- --contents_css_id_index=<id>
- Enforces pp2html to assign the passed CSS id to the TOC table on the index
page.
If this option is unset or set to an empty string, no id will
be assigned.
- --contents_css_id_start=<id>
- Enforces pp2html to assign the passed CSS id to the TOC table on the start
page.
If this option is unset or set to an empty string, no id will
be assigned.
- --index_bot=n
- --index_dat=n
- --index_top=n
- Indices of the bottom, top and index frames within the frame set. Used for
java script navigation procedure.
- --index_header=text
- Heading for index page. Default is Index
- --no_index
- Do not create an index
- --java_script_navigation=value
- value=1: on, value=0: off. If java_script_navigation is on and frame sets
are generated then for each page a separate top and bottom page is created
which is used in the top and bottom frames of the frame set. If
java_script_navigation is off, then only one top template and one bottom
template will be used for all pages. (In this case there should be no
place holders for PAGE etc. in theses templates ... and they should be
complete HTML Files.)
NOTE: This option is mainly used in combination with
the "--tree_applet" option because
it is not possible to use the tree applet with javascript
navigation (the tree applet cannot call URLs which contain javascript
function calls).
- --java_script_controls=value
- If this option is used, additional javascript code is included in each
header of the slides. This makes it possible to use keyboard keys and left
mouse button to navigate through the slides. value=1 turns this option on
and value=0 turns it off. Default is off.
The following table shows the keys which can be used for
navigation:
Key | Action
----------------+----------------------------
Button 1 click | go to next slide
n | go to next slide
p | go to previous slide
s | go to start slide
i | go to index slide
- --linear_mode
- This option influences the behaviour of PREV and NEXT links. In linear
mode all pages form a linear sequence which can be traversed by means of
the PREV and NEXT links. When this option is not set then the PREV and
NEXT links work only on the same level. For example is it possible to
traverse the sequence 2.1.1, 2.1.2, 2.1.3, 2.1.4 with PREV and NEXT links
but the first section has no PREV link and the last one has no NEXT link.
In such a constellation the UP and DOWN links may be used to change the
level and go the the next higher section or step down to a
subsection.
- --num_headers
- --nonum_headers
- All page headers are preceeded/not preceeded by the chapter number (e.g.
2.2.3) which is determined by the position of the page and the level of
its header. The "--nonum_headers"
overwrites a previous "num_headers"
option which allows to overwrite options from predefined styles.
- --trailing_point
- If this option is set, all numbers in the page headlines will will get a
trailing point (e.g. 1. 2.3. instead of 1 and 2.3). The default is no
trailing points.
- --no_contents_indent
- --no_contents_bullets
- These two options influence the appearance of the table of contents. The
first one prevents the indentation and the second one avoids bullets in
front of each entry.
- --contents_indent=m
- Indent table of contents by m levels (i. e. put m <UL> </UL>
containers around the table of contents.
- --slide_dir=directory
- --target_dir=directory
- Directory in which the HTML files are to be created.
- --slide_prefix=text
- Prefix for all HTML files. Default is "Slide".
- --slide_suffix=text
- Suffix for all HTML files. Default is "htm".
- --slide_md5
- This option specifies, that all filenames should have the form
<slide_prefix><md5_checksum>.<slide_suffix> e. g.
"slide85b9a93686f5416d2f85964a33fad95b.htm".
The "md5_checksum" is calculated from
the slide header. This can be usful, if there are many changes in your
document (addition/removal of slides) and you use hyperlinks to pages of
your document from within other documents.
NOTE: This feature is still experimental.
- --reverse_order
- This options has the effect that the slides are numbered in reverse order.
If there are <m> slides (beside the contents slide) the normal
naming would be slide0000.htm, slide0001.htm ... slide000<m>.htm.
With the "--reverse_order" option the
naming is slide000<m>.htm, ... slide0002.htm, slide0001.htm. The
contents slide is still slide0000.htm.
- --title=text
- Text which is substituted for the TITLE keyword in template files.
- --tree_applet
- Activate usage of TreeApplet
- --tree_app_width=m
- --tree_app_height=m
- Width and height of the tree applet area.
- --tree_base
- Codebase option for the tree applet. Default is ./
- --style=style_name
- --style_dir=style_dirname
- Using pre-defined styles. Styles are pre-defined collections of templates
and configuration files which are stored in a directory whose name is the
name of this style. Several of such styles can be placed in a style
directory (collection of styles).
With
"--style_dir=style_dirname" you can
specify one or more style directories (the option can be used more than
once). All specified style directories are searched for the style which
is given by the "--style" option.
Examples of styles are delivered with the PerlPoint-Converters
distribution.
- --style_sheet=style_sheet_name
- This option is still experimental. It allows to specifiy a style
sheet (.css) which will be referenced in HTML <head> tags in all
slides. It is not well tested and the settings in the style sheet may
conflict with some layout tricks used by pp2html.
- --image_dir=dirname
- This is the name of the image directory in the target area. All images
from the style directory and from the PerlPoint source are copied to this
location.
- --mv2targetdir
- If this option is set, all images mentioned in \IMAGE tags are moved to
the image directory, i.e. they are removed from the source directory.
- --start_page=filename
- The default for this option is "index.htm". The table of
contents slide or the frame set start page is copied to this filename
unless the "--start_page" option is set
to the empty string. This is useful for web pages because most browsers
automatically open the "index.htm" if it exists. For example, if
you have installed your document or presentation at
"http://somewhere.net/Example", a web browser will automatically
open the first page of your document if the browser is directed to this
URL.
- --trace [<level>]
- activates traces of the specified level. You may use the environment
variable SCRIPTDEBUG alternatively (but an option overwrites environment
settings). The following levels are defined (use the numeric
values) - if a description sounds cryptic to you, just ignore the
setting:
- zero (0)
- same as omitting the option: all traces are suppressed.
- one (1)
- paragraph detection,
- two (2)
- lexer traces,
- four (4)
- parsing,
- eight (8)
- semantic actions embedded into parsing,
- sixteen (16)
- active contents,
- thirtytwo (32)
- backend traces.
Using different levels may cause unexpected results.
Several levels are combined by addition.
# activate lexer and parser traces
--trace 6
- --help
- Print this manual page.
- --version
- Print version inforamtion and exit.
Template files for header and footer section.
Configuration file $HOME/.pp2html
The following environment variables have influence on the program:
- SCRIPTDEBUG
- may be set to a numeric value to activate certain trace levels. You can
use option -trace alternatively (note that a used option overwrites
an environment setting). The several levels are described with this
option.
- TMP
- TEMP
- TMP or TEMP are used to specify a temporary directory (needed for a
temporary help file). If none of these variables is set, "/tmp"
will be used.
The PerlPoint format was initially designed by Tom Christiansen. Tom used a
simple syntax which was inspired by POD and a simple script which created HTML
files from an ASCII file.
A PerlPoint mailing list is set up to discuss usage, ideas, bugs, suggestions
and translator development. To subscribe, please send an empty message to
perlpoint-subscribe@perl.org.
If you prefer, you can contact me via lorenz.domke@gmx.de
as well.
Lorenz Domke (lorenz.domke@gmx.de), Copyright (C) 2005. All rights
reserved.
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