# HTML Parameter Reference

$Id: param.xml 1341 2006-08-02 16:35:13Z telrod $
Walsh Norman
1999 2000 2001 Norman Walsh

## Introduction

This is technical reference documentation for the DocBook XSL Stylesheets; it documents (some of) the parameters, templates, and other elements of the stylesheets.

This reference describes each of the HTML Stylesheet parameters. These are the easily customizable parts of the stylesheet. If you want to specify an alternate value for one or more of these parameters, you can do so in a driver stylesheet.

For example, if you want to change the `html.stylesheet` to `reference.css`, you might create a driver stylesheet like this:

    <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                    version='1.0'>

      <xsl:import href="http://docbook.sourceforge.net/release/xsl/snapshot/html/docbook.xsl"/>

      <xsl:param name="html.stylesheet">reference.css</xsl:param>

    </xsl:stylesheet>

Naturally, you have to change the href attribute on `<xsl:import>` to point to `docbook.xsl` on your system. (Or `chunk.xsl`, if you're using chunking.)

This is not intended to be user documentation. It is provided for developers writing customization layers for the stylesheets, and for anyone who's interested in how it works.

Although I am trying to be thorough, this documentation is known to be incomplete. Don't forget to read the source, too :-)

## Admonitions

admon.graphics.extension string
admon.graphics.extension Extension for admonition graphics

    <xsl:param name="admon.graphics.extension" select="'.png'"></xsl:param>

#### Description

Sets the extension to use on admonition graphics.

admon.graphics.path string
admon.graphics.path Path to admonition graphics

    <xsl:param name="admon.graphics.path">images/</xsl:param>

#### Description

Sets the path, probably relative to the directory where the HTML files are created, to the admonition graphics.

admon.graphics boolean
admon.graphics Use graphics in admonitions?

    <xsl:param name="admon.graphics" select="0"></xsl:param>

#### Description

If true (non-zero), admonitions are presented in an alternate style that uses a graphic. Default graphics are provided in the distribution.

admon.textlabel boolean
admon.textlabel Use text label in admonitions?

    <xsl:param name="admon.textlabel" select="1"></xsl:param>

#### Description

If true (non-zero), admonitions are presented with a generated text label such as Note or Warning in the appropriate language. If zero, such labels are turned off, but any title child of the admonition element are still output. The default value is 1.

admon.style string
admon.style CSS style attributes for admonitions

    <xsl:param name="admon.style">
      <xsl:text>margin-left: 0.5in; margin-right: 0.5in;</xsl:text>
    </xsl:param>

#### Description

Specifies the value of the STYLE attribute that should be added to admonitions.

## Callouts

callout.defaultcolumn integer
callout.defaultcolumn Indicates what column callouts appear in by default

    <xsl:param name="callout.defaultcolumn" select="'60'"></xsl:param>

#### Description

If a callout does not identify a column (for example, if it uses the `linerange` unit), it will appear in the default column.

callout.graphics.extension string
callout.graphics.extension Extension for callout graphics

    <xsl:param name="callout.graphics.extension" select="'.png'"></xsl:param>

#### Description

Sets the extension to use on callout graphics.

callout.graphics.number.limit integer
callout.graphics.number.limit Number of the largest callout graphic

    <xsl:param name="callout.graphics.number.limit" select="'10'"></xsl:param>

#### Description

If callout.graphics is non-zero, graphics are used to represent callout numbers. The value of callout.graphics.number.limit is the largest number for which a graphic exists. If the callout number exceeds this limit, the default presentation "(nnn)" will always be used.

callout.graphics.path string
callout.graphics.path Path to callout graphics

    <xsl:param name="callout.graphics.path" select="'images/callouts/'"></xsl:param>

#### Description

Sets the path, probably relative to the directory where the HTML files are created, to the callout graphics.

callout.graphics boolean
callout.graphics Use graphics for callouts?

    <xsl:param name="callout.graphics" select="'1'"></xsl:param>

#### Description

If non-zero, callouts are presented with graphics (e.g., reverse-video circled numbers instead of "(1)", "(2)", etc.). Default graphics are provided in the distribution.

callout.list.table boolean
callout.list.table Present callout lists using a table?

    <xsl:param name="callout.list.table" select="'1'"></xsl:param>

#### Description

The default presentation of CalloutLists uses an HTML DL. Some browsers don't align DLs very well if callout.graphics are used. With this option turned on, CalloutLists are presented in an HTML TABLE, which usually results in better alignment of the callout number with the callout description.

callout.unicode.number.limit integer
callout.unicode.number.limit Number of the largest callout graphic

    <xsl:param name="callout.unicode.number.limit" select="'10'"></xsl:param>

#### Description

If callout.unicode is non-zero, unicode characters are used to represent callout numbers. The value of callout.unicode.number.limit is the largest number for which a unicode character exists. If the callout number exceeds this limit, the default presentation "(nnn)" will always be used.

callout.unicode.start.character integer
callout.unicode.start.character First Unicode character to use, decimal value.

    <xsl:param name="callout.unicode.start.character" select="10102"></xsl:param>

#### Description

If callout.graphics is zero and callout.unicode is non-zero, unicode characters are used to represent callout numbers. The value of callout.unicode.start.character is the decimal unicode value used for callout number one. Currently, only 10102 is supported in the stylesheets for this parameter.

callout.unicode boolean
callout.unicode Use Unicode characters rather than images for callouts.

    <xsl:param name="callout.unicode" select="0"></xsl:param>

#### Description

The stylesheets can use either an image of the numbers one to ten, or the single Unicode character which represents the numeral, in white on a black background. Use this to select the Unicode character option.

callouts.extension boolean
callouts.extension Enable the callout extension

    <xsl:param name="callouts.extension" select="'1'"></xsl:param>

#### Description

The callouts extension processes areaset elements in ProgramListingCO and other text-based callout elements.

## EBNF

ebnf.table.bgcolor string
ebnf.table.bgcolor Background color for EBNF tables

    <xsl:param name="ebnf.table.bgcolor" select="'#F5DCB3'"></xsl:param>

#### Description

Sets the background color for EBNF tables. No bgcolor attribute is output if `ebnf.table.bgcolor` is set to the null string. The default value matches the value used in recent online versions of the W3C's XML Spec productions.

ebnf.table.border
ebnf.table.border Selects border on EBNF tables

    <xsl:param name="ebnf.table.border" select="1"></xsl:param>

#### Description

Selects the border on EBNF tables. If non-zero, the tables have borders, otherwise they don't.

ebnf.assignment rtf
ebnf.assignment The EBNF production assignment operator

    <xsl:param name="ebnf.assignment">
    <tt>::=</tt>
    </xsl:param>

#### Description

The ebnf.assignment parameter determines what text is used to show assignment in productions in productionsets.

While `::=` is common, so are several other operators.

ebnf.statement.terminator rtf
ebnf.statement.terminator Punctuation that ends an EBNF statement.

    <xsl:param name="ebnf.statement.terminator"></xsl:param>

#### Description

The ebnf.statement.terminator parameter determines what text is used to terminate each production in productionset.

Some notations end each statement with a period.

## ToC/LoT/Index Generation

annotate.toc boolean
annotate.toc Annotate the Table of Contents?

    <xsl:param name="annotate.toc" select="1"></xsl:param>

#### Description

If true, TOCs will be annotated. At present, this just means that the RefPurpose of RefEntry TOC entries will be displayed.

autotoc.label.separator string
autotoc.label.separator Separator between labels and titles in the ToC

    <xsl:param name="autotoc.label.separator" select="'. '"></xsl:param>

#### Description

String to use to seperate labels and title in a table of contents.

process.source.toc boolean
process.source.toc FIXME:

    <xsl:param name="process.source.toc" select="0"></xsl:param>

#### Description

FIXME:

process.empty.source.toc boolean
process.empty.source.toc FIXME:

    <xsl:param name="process.empty.source.toc" select="0"></xsl:param>

#### Description

FIXME:

bridgehead.in.toc boolean
bridgehead.in.toc Should bridgehead elements appear in the TOC?

    <xsl:param name="bridgehead.in.toc" select="0"></xsl:param>

#### Description

If non-zero, bridgeheads appear in the TOC. Note that this option is not fully supported and may be removed in a future version of the stylesheets.

manual.toc string
manual.toc An explicit TOC to be used for the TOC

    <xsl:param name="manual.toc" select="''"></xsl:param>

#### Description

The manual.toc identifies an explicit TOC that will be used for building the printed TOC.

toc.list.type list dl ul ol
toc.list.type Type of HTML list element to use for Tables of Contents

    <xsl:param name="toc.list.type">dl</xsl:param>

#### Description

When an automatically generated Table of Contents (or List of Titles) is produced, this HTML element will be used to make the list.

toc.section.depth integer
toc.section.depth How deep should recursive sections appear in the TOC?

    <xsl:param name="toc.section.depth">2</xsl:param>

#### Description

Specifies the depth to which recursive sections should appear in the TOC.

toc.max.depth integer
toc.max.depth How maximaly deep should be each TOC?

    <xsl:param name="toc.max.depth">8</xsl:param>

#### Description

Specifies the maximal depth of TOC on all levels.

generate.toc table
generate.toc Control generation of ToCs and LoTs

    <xsl:param name="generate.toc">
    appendix  toc,title
    article/appendix  nop
    article   toc,title
    book      toc,title,figure,table,example,equation
    chapter   toc,title
    part      toc,title
    preface   toc,title
    qandadiv  toc
    qandaset  toc
    reference toc,title
    sect1     toc
    sect2     toc
    sect3     toc
    sect4     toc
    sect5     toc
    section   toc
    set       toc,title
    </xsl:param>

#### Description

This parameter has a structured value. It is a table of space-delimited path/value pairs. Each path identifies some element in the source document using a restricted subset of XPath (only the implicit child axis, no wildcards, no predicates). Paths can be either relative or absolute.

When processing a particular element, the stylesheets consult this table to determine if a ToC (or LoT(s)) should be generated.

For example, consider the entry:

    book toc,figure

This indicates that whenever a book is formatted, a Table Of Contents and a List of Figures should be generated. Similarly,

    /chapter toc

indicates that whenever a document that has a root of chapter is formatted, a Table of Contents should be generated. The entry `chapter` would match all chapters, but `/chapter` matches only chapter document elements.

Generally, the longest match wins. So, for example, if you want to distinguish articles in books from articles in parts, you could use these two entries:

    book/article toc,figure
    part/article toc

Note that an article in a part can never match a `book/article`, so if you want nothing to be generated for articles in parts, you can simply leave that rule out.

If you want to leave the rule in, to make it explicit that you're turning something off, use the value nop. For example, the following entry disables ToCs and LoTs for articles:

    article nop

Do not simply leave the word article in the file without a matching value. That'd be just begging the silly little path/value parser to get confused.

Section ToCs are further controlled by the generate.section.toc.level parameter. For a given section level to have a ToC, it must have both an entry in generate.toc and be within the range enabled by generate.section.toc.level.

generate.section.toc.level integer
generate.section.toc.level Control depth of TOC generation in sections

    <xsl:param name="generate.section.toc.level" select="0"></xsl:param>

#### Description

The generate.section.toc.level parameter controls the depth of section in which TOCs will be generated. Note that this is related to, but not the same as toc.section.depth, which controls the depth to which TOC entries will be generated in a given TOC.

If, for example, generate.section.toc.level is `3`, TOCs will be generated in first, second, and third level sections, but not in fourth level sections.

generate.index boolean
generate.index Do you want an index?

    <xsl:param name="generate.index" select="1"></xsl:param>

#### Description

Specify if an index should be generated.

## Extensions

linenumbering.everyNth integer
linenumbering.everyNth Indicate which lines should be numbered

    <xsl:param name="linenumbering.everyNth" select="'5'"></xsl:param>

#### Description

If line numbering is enabled, everyNth line will be numbered.

linenumbering.extension boolean
linenumbering.extension Enable the line numbering extension

    <xsl:param name="linenumbering.extension" select="'1'"></xsl:param>

#### Description

If true, verbatim environments (elements that have the format='linespecific' notation attribute: address, literallayout, programlisting, screen, synopsis) that specify line numbering will have, surprise, line numbers.

linenumbering.separator string
linenumbering.separator Specify a separator between line numbers and lines

    <xsl:param name="linenumbering.separator" select="' '"></xsl:param>

#### Description

The separator is inserted between line numbers and lines in the verbatim environment.

linenumbering.width integer
linenumbering.width Indicates the width of line numbers

    <xsl:param name="linenumbering.width" select="'3'"></xsl:param>

#### Description

If line numbering is enabled, line numbers will appear right justified in a field "width" characters wide.

tablecolumns.extension boolean
tablecolumns.extension Enable the table columns extension function

    <xsl:param name="tablecolumns.extension" select="'1'"></xsl:param>

#### Description

The table columns extension function adjusts the widths of table columns in the HTML result to more accurately reflect the specifications in the CALS table.

textinsert.extension boolean
textinsert.extension Enable the textinsert extension element

    <xsl:param name="textinsert.extension" select="'1'"></xsl:param>

#### Description

The textinsert extension element inserts the contents of a a file into the result tree (as text).

graphicsize.extension boolean
graphicsize.extension Enable the getWidth()/getDepth() extension functions

    <xsl:param name="graphicsize.extension" select="1"></xsl:param>

#### Description

If non-zero (and if use.extensions is non-zero and if you're using a processor that supports extension functions), the `getWidth` and `getDepth` functions will be used to extract image sizes from graphics.

use.extensions boolean
use.extensions Enable extensions

    <xsl:param name="use.extensions" select="'0'"></xsl:param>

#### Description

If non-zero, extensions may be used. Each extension is further controlled by its own parameter. But if use.extensions is zero, no extensions will be used.

## Automatic labelling

chapter.autolabel boolean
chapter.autolabel Are chapters automatically enumerated?

    <xsl:param name="chapter.autolabel" select="1"></xsl:param>

#### Description

If true (non-zero), unlabeled chapters will be enumerated.

appendix.autolabel boolean
appendix.autolabel Are Appendixes automatically enumerated?

    <xsl:param name="appendix.autolabel" select="1"></xsl:param>

#### Description

If true (non-zero), unlabeled appendixes will be enumerated.

part.autolabel boolean
part.autolabel Are parts and references enumerated?

    <xsl:param name="part.autolabel" select="1"></xsl:param>

#### Description

If true (non-zero), unlabeled parts and references will be enumerated.

preface.autolabel boolean
preface.autolabel Are prefaces enumerated?

    <xsl:param name="preface.autolabel" select="0"></xsl:param>

#### Description

If true (non-zero), unlabeled prefaces will be enumerated.

qandadiv.autolabel boolean
qandadiv.autolabel Are divisions in QAndASets enumerated?

    <xsl:param name="qandadiv.autolabel" select="1"></xsl:param>

#### Description

If true (non-zero), unlabeled qandadivs will be enumerated.

section.autolabel boolean
section.autolabel Are sections enumerated?

    <xsl:param name="section.autolabel" select="0"></xsl:param>

#### Description

If true (non-zero), unlabeled sections will be enumerated.

section.label.includes.component.label boolean
section.label.includes.component.label Do section labels include the component label?

    <xsl:param name="section.label.includes.component.label" select="0"></xsl:param>

#### Description

If true (non-zero), section labels are prefixed with the label of the component that contains them.

label.from.part boolean
label.from.part Renumber chapters in each part?

    <xsl:param name="label.from.part" select="'0'"></xsl:param>

#### Description

If label.from.part is non-zero, components (chapters, appendixes, etc.) will be numbered from 1 in each part. Otherwise, they will be numbered monotonically throughout each book.

## HTML

html.base uri
html.base An HTML base URI

    <xsl:param name="html.base"></xsl:param>

#### Description

If html.base is set, it is used for the BASE element in the HEAD of the HTML documents. This is useful for dynamically served HTML where the base URI needs to be shifted.

html.stylesheet.type string
html.stylesheet.type The type of the stylesheet used in the generated HTML

    <xsl:param name="html.stylesheet.type">text/css</xsl:param>

#### Description

The type of the stylesheet to place in the HTML link tag.

html.stylesheet string
html.stylesheet Name of the stylesheet(s) to use in the generated HTML

    <xsl:param name="html.stylesheet" select="''"></xsl:param>

#### Description

The html.stylesheet parameter is either empty, indicating that no stylesheet LINK tag should be generated in the HTML output, or it is a list of one or more stylesheets.

Multiple stylesheets are space-delimited. If you need to reference a stylesheet URI that includes a space, encode it with `%20`. A seprate HTML LINK element will be generated for each stylesheet in the order they are listed in the parameter.

use.id.as.filename boolean
use.id.as.filename Use ID value of chunk elements as the filename?

    <xsl:param name="use.id.as.filename" select="'0'"></xsl:param>

#### Description

If use.id.as.filename is non-zero, the filename of chunk elements that have IDs will be derived from the ID value.

css.decoration boolean
css.decoration Enable CSS decoration of elements

    <xsl:param name="css.decoration" select="1"></xsl:param>

#### Description

If `css.decoration` is turned on, then HTML elements produced by the stylesheet may be decorated with STYLE attributes. For example, the LI tags produced for list items may include a fragment of CSS in the STYLE attribute which sets the CSS property "list-style-type".

spacing.paras boolean
spacing.paras Insert additional <p> elements for spacing?

    <xsl:param name="spacing.paras" select="'0'"></xsl:param>

#### Description

When non-zero, additional, empty paragraphs are inserted in several contexts (for example, around informal figures), to create a more pleasing visual appearance in many browsers.

emphasis.propagates.style boolean
emphasis.propagates.style Pass emphasis role attribute through to HTML?

    <xsl:param name="emphasis.propagates.style" select="1"></xsl:param>

#### Description

If true, the role attribute of emphasis elements will be passed through to the HTML as a class attribute on a span that surrounds the emphasis.

para.propagates.style boolean
para.propagates.style Pass para role attribute through to HTML?

    <xsl:param name="para.propagates.style" select="1"></xsl:param>

#### Description

If true, the role attribute of para elements will be passed through to the HTML as a class attribute on the p generated for the paragraph.

phrase.propagates.style boolean
phrase.propagates.style Pass phrase role attribute through to HTML?

    <xsl:param name="phrase.propagates.style" select="1"></xsl:param>

#### Description

If true, the role attribute of phrase elements will be passed through to the HTML as a class attribute on a span that surrounds the phrase.

entry.propagates.style boolean
entry.propagates.style Pass entry role attribute through to HTML?

    <xsl:param name="entry.propagates.style" select="1"></xsl:param>

#### Description

If true, the role attribute of entry elements will be passed through to the HTML as a class attribute on the td or th generated for the table cell.

html.longdesc boolean
html.longdesc Should longdesc URIs be created?

    <xsl:param name="html.longdesc" select="1"></xsl:param>

#### Description

If non-zero, HTML files will be created for the longdesc attribute. These files are created from the textobjects in mediaobjects and inlinemediaobject.

html.longdesc.link boolean
html.longdesc.link Should a link to the longdesc be included in the HTML?

    <xsl:param name="html.longdesc.link" select="$html.longdesc"></xsl:param>

#### Description

If non-zero, links will be created to the HTML files created for the longdesc attribute. It makes no sense to turn enable this option without also enabling the $html.longdesc parameter.

The `longdesc.link` named template is called to construct the link.

make.valid.html boolean
make.valid.html Attempt to make sure the HTML output is valid HTML

    <xsl:param name="make.valid.html" select="0"></xsl:param>

#### Description

If make.valid.html is true, the stylesheets take extra effort to ensure that the resulting HTML is valid. This may mean that some para tags are translated into HTML divs or that other substitutions occur.

This parameter is different from html.cleanup because it changes the resulting markup; it does not use extension functions to manipulate result-tree-fragments and is therefore applicable to any XSLT processor.

html.cleanup boolean
html.cleanup Attempt to clean up the resulting HTML?

    <xsl:param name="html.cleanup" select="1"></xsl:param>

#### Description

If non-zero, and if the EXSLT extensions are supported by your processor, the resulting HTML will be cleaned up. This improves the chances that the resulting HTML will be valid. It may also improve the formatting of some elements.

This parameter is different from make.valid.html because it uses extension functions to manipulate result-tree-fragments.

draft.mode list
draft.mode Select draft mode

    <xsl:param name="draft.mode" select="'maybe'"></xsl:param>

#### Description

Selects draft mode. If draft.mode is `yes`, the entire document will be treated as a draft. If it is `no`, the entire document will be treated as a final copy. If it is `maybe`, individual sections will be treated as draft or final independently, depending on how their status attribute is set.

draft.watermark.image uri
draft.watermark.image The URI of the image to be used for draft watermarks

    <xsl:param name="draft.watermark.image" select="'http://docbook.sourceforge.net/release/images/draft.png'"></xsl:param>

#### Description

The image to be used for draft watermarks.

generate.id.attributes
generate.id.attributes

    <xsl:param name="generate.id.attributes" select="0"></xsl:param>

#### Description

If non-zero, the HTML stylesheet will generate ID attributes on containers. For example, the markup:

    <section id="foo"><title>Some Title</title>
    <para>Some para.</para>
    </section>

might produce:

    <div class="section" id="foo">
    <h2>Some Title</h2>
    <p>Some para.</p>
    </div>

The alternative is to generate anchors:

    <div class="section">
    <h2><a name="foo"></a>Some Title</h2>
    <p>Some para.</p>
    </div>

Because the name attribute of the a element and the id attribute of other tags are both of type ID, producing both generates invalid documents.

As of version 1.50, you can use this switch to control which type of identifier is generated. For backwards-compatibility, generating a anchors is preferred.

Note: at present, this switch is incompletely implemented. Disabling ID attributes will suppress them, but enabling ID attributes will not suppress the anchors.

generate.meta.abstract boolean
generate.meta.abstract Generate HTML META element from abstract?

    <xsl:param name="generate.meta.abstract" select="1"></xsl:param>

#### Description

If non-zero, document abstracts will be reproduced in the HTML HEAD with meta name="description" content="...".

## XSLT Processing

rootid string
rootid Specify the root element to format

    <xsl:param name="rootid" select="''"></xsl:param>

#### Description

If rootid is specified, it must be the value of an ID that occurs in the document being formatted. The entire document will be loaded and parsed, but formatting will begin at the element identified, rather than at the root. For example, this allows you to process only chapter 4 of a book.

Because the entire document is available to the processor, automatic numbering, cross references, and other dependencies are correctly resolved.

suppress.navigation boolean
suppress.navigation Disable header and footer navigation

    <xsl:param name="suppress.navigation">0</xsl:param>

#### Description

If `suppress.navigation` is turned on, header and footer navigation will be suppressed.

suppress.header.navigation boolean
suppress.header.navigation Disable header navigation

    <xsl:param name="suppress.header.navigation">0</xsl:param>

#### Description

If `suppress.header.navigation` is turned on, header navigation will be suppressed.

suppress.footer.navigation boolean
suppress.footer.navigation Disable footer navigation

    <xsl:param name="suppress.footer.navigation">0</xsl:param>

#### Description

If `suppress.footer.navigation` is turned on, footer navigation will be suppressed.

header.rule boolean
header.rule Rule under headers?

    <xsl:param name="header.rule" select="1"></xsl:param>

#### Description

If non-zero, a rule will be drawn below the page headers.

footer.rule boolean
footer.rule Rule over footers?

    <xsl:param name="footer.rule" select="1"></xsl:param>

#### Description

If non-zero, a rule will be drawn above the page footers.

## Meta/*Info

inherit.keywords boolean
inherit.keywords Inherit keywords from ancestor elements?

    <xsl:param name="inherit.keywords" select="'1'"></xsl:param>

#### Description

If inherit.keywords is non-zero, the keyword META for each HTML HEAD element will include all of the keywords from ancestral elements. Otherwise, only the keywords from the current section will be used.

make.single.year.ranges boolean
make.single.year.ranges Print single-year ranges (e.g., 1998-1999)

    <xsl:param name="make.single.year.ranges" select="0"></xsl:param>

#### Description

If non-zero, year ranges that span a single year will be printed in range notation (1998-1999) instead of discrete notation (1998, 1999).

make.year.ranges boolean
make.year.ranges Collate copyright years into ranges?

    <xsl:param name="make.year.ranges" select="0"></xsl:param>

#### Description

If non-zero, copyright years will be collated into ranges.

author.othername.in.middle boolean
author.othername.in.middle Is othername in author a middle name?

    <xsl:param name="author.othername.in.middle" select="1"></xsl:param>

#### Description

If true (non-zero), the othername of an author appears between the firstname and surname. Otherwise, othername is suppressed.

generate.legalnotice.link boolean
generate.legalnotice.link TBD

    <xsl:param name="generate.legalnotice.link" select="0"></xsl:param>

#### Description

TBD

## Reference Pages

funcsynopsis.decoration boolean
funcsynopsis.decoration Decorate elements of a FuncSynopsis?

    <xsl:param name="funcsynopsis.decoration" select="1"></xsl:param>

#### Description

If true (non-zero), elements of the FuncSynopsis will be decorated (e.g. bold or italic). The decoration is controlled by functions that can be redefined in a customization layer.

funcsynopsis.style list ansi kr
funcsynopsis.style What style of 'FuncSynopsis' should be generated?

    <xsl:param name="funcsynopsis.style">kr</xsl:param>

#### Description

If `funcsynopsis.style` is `ansi`, ANSI-style function synopses are generated for a funcsynopsis, otherwise K&R-style function synopses are generated.

funcsynopsis.tabular.threshold integer
funcsynopsis.tabular.threshold Width beyond which a tabular presentation will be used

    <xsl:param name="funcsynopsis.tabular.threshold" select="40"></xsl:param>

#### Description

If funcsynopsis.tabular.threshold is greater than zero then if a funcprototype is wider than the threshold value, it will be presented in a table.

function.parens boolean
function.parens Generate parens after a function?

    <xsl:param name="function.parens">0</xsl:param>

#### Description

If not 0, the formatting of a function element will include generated parenthesis.

refentry.generate.name boolean
refentry.generate.name Output NAME header before 'RefName'(s)?

    <xsl:param name="refentry.generate.name" select="1"></xsl:param>

#### Description

If true (non-zero), a "NAME" section title is output before the list of 'RefName's. This parameter and refentry.generate.title are mutually exclusive. This means that if you change this parameter to zero, you should set refentry.generate.title to 1 unless you want get quite strange output.

refentry.generate.title boolean
refentry.generate.title Output title before 'RefName'(s)?

    <xsl:param name="refentry.generate.title" select="0"></xsl:param>

#### Description

If true (non-zero), the reference page title or first name is output before the list of 'RefName's. This parameter and refentry.generate.name are mutually exclusive. This means that if you change this parameter to 1, you should set refentry.generate.name to 0 unless you want get quite strange output.

refentry.xref.manvolnum boolean
refentry.xref.manvolnum Output manvolnum as part of refentry cross-reference?

    <xsl:param name="refentry.xref.manvolnum" select="1"></xsl:param>

#### Description

if true (non-zero), the manvolnum is used when cross-referencing refentrys, either with xref or citerefentry.

citerefentry.link boolean
citerefentry.link Generate URL links when cross-referencing RefEntrys?

    <xsl:param name="citerefentry.link" select="'0'"></xsl:param>

#### Description

If true, a web link will be generated, presumably to an online man->HTML gateway. The text of the link is generated by the generate.citerefentry.link template.

refentry.separator boolean
refentry.separator Generate a separator between consecutive RefEntry elements?

    <xsl:param name="refentry.separator" select="'1'"></xsl:param>

#### Description

If true, a separator will be generated between consecutive reference pages.

## Tables

default.table.width length
default.table.width The default width of tables

    <xsl:param name="default.table.width" select="''"></xsl:param>

#### Description

If specified, this value will be used for the WIDTH attribute on tables that do not specify an alternate width (with the dbhtml processing instruction).

nominal.table.width length
nominal.table.width The (absolute) nominal width of tables

    <xsl:param name="nominal.table.width" select="'6in'"></xsl:param>

#### Description

In order to convert CALS column widths into HTML column widths, it is sometimes necessary to have an absolute table width to use for conversion of mixed absolute and relative widths. This value must be an absolute length (not a percentag).

table.borders.with.css boolean
table.borders.with.css Use CSS to specify table, row, and cell borders?

    <xsl:param name="table.borders.with.css" select="0"></xsl:param>

#### Description

If true (non-zero), CSS will be used to draw table borders.

table.cell.border.style
table.cell.border.style

    <xsl:param name="table.cell.border.style" select="'solid'"></xsl:param>

#### Description

FIXME:

table.cell.border.thickness
table.cell.border.thickness

    <xsl:param name="table.cell.border.thickness" select="'0.5pt'"></xsl:param>

#### Description

FIXME:

table.cell.border.color
table.cell.border.color

    <xsl:param name="table.cell.border.color" select="''"></xsl:param>

#### Description

FIXME:

table.frame.border.style
table.frame.border.style

    <xsl:param name="table.frame.border.style" select="'solid'"></xsl:param>

#### Description

FIXME:

table.frame.border.thickness
table.frame.border.thickness Specifies the thickness of the frame border

    <xsl:param name="table.frame.border.thickness" select="'0.5pt'"></xsl:param>

#### Description

Specifies the thickness of the border on the table's frame.

table.frame.border.color
table.frame.border.color

    <xsl:param name="table.frame.border.color" select="''"></xsl:param>

#### Description

FIXME:

html.cellspacing integer
html.cellspacing Default value for cellspacing in HTML tables

    <xsl:param name="html.cellspacing" select="''"></xsl:param>

#### Description

If specified, this value will be used as the default cellspacing value in HTML tables.

html.cellpadding integer
html.cellpadding Default value for cellpadding in HTML tables

    <xsl:param name="html.cellpadding" select="''"></xsl:param>

#### Description

If specified, this value will be used as the default cellpadding value in HTML tables.

## QAndASet

qanda.defaultlabel boolean
qanda.defaultlabel Sets the default for defaultlabel on QandASet.

    <xsl:param name="qanda.defaultlabel">number</xsl:param>

#### Description

If no defaultlabel attribute is specified on a QandASet, this value is used. It must be one of the legal values for the defaultlabel attribute.

qanda.inherit.numeration boolean
qanda.inherit.numeration Does enumeration of QandASet components inherit the numeration of parent elements?

    <xsl:param name="qanda.inherit.numeration" select="1"></xsl:param>

#### Description

If true (non-zero), numbered QandADiv elements and Questions and Answers inherit the numeration of the ancestors of the QandASet.

## Linking

target.database.document uri
target.database.document Name of master database file for resolving olinks

    <xsl:param name="target.database.document" select="''"></xsl:param>

#### Description

To resolve olinks between documents, the stylesheets use a master database document that identifies the target datafiles for all the documents within the scope of the olinks. This parameter value is the URI of the master document to be read during processing to resolve olinks. The default value is `olinkdb.xml`.

The data structure of the file is defined in the `targetdatabase.dtd` DTD. The database file provides the high level elements to record the identifiers, locations, and relationships of documents. The cross reference data for individual documents is generally pulled into the database using system entity references or XIncludes. See also targets.filename.

targets.filename string
targets.filename Name of cross reference targets data file

    <xsl:param name="targets.filename" select="'target.db'"></xsl:param>

#### Description

In order to resolve olinks efficiently, the stylesheets can generate an external data file containing information about all potential cross reference endpoints in a document. This parameter lets you change the name of the generated file from the default name `target.db`. The name must agree with that used in the target database used to resolve olinks during processing. See also target.database.document.

collect.xref.targets string
collect.xref.targets Controls whether cross reference data is collected

    <xsl:param name="collect.xref.targets" select="'no'"></xsl:param>

#### Description

In order to resolve olinks efficiently, the stylesheets can generate an external data file containing information about all potential cross reference endpoints in a document. This parameter determines whether the collection process is run when the document is processed by the stylesheet. The default value is `no`, which means the data file is not generated during processing. The other choices are `yes`, which means the data file is created and the document is processed for output, and `only`, which means the data file is created but the document is not processed for output. See also targets.filename.

olink.base.uri uri
olink.base.uri Base URI used in olink hrefs

    <xsl:param name="olink.base.uri" select="''"></xsl:param>

#### Description

When cross reference data is collected for resolving olinks, it may be necessary to prepend a base URI to each target's href. This parameter lets you set that base URI when cross reference data is collected. This feature is needed when you want to link to a document that is processed without chunking. The output filename for such a document is not known to the XSL stylesheet; the only target information consists of fragment identifiers such as `#idref`. To enable the resolution of olinks between documents, you should pass the name of the HTML output file as the value of this parameter. Then the hrefs recorded in the cross reference data collection look like `outfile.html#idref`, which can be reached as links from other documents.

use.local.olink.style boolean
use.local.olink.style Process olinks using xref style of current document

    <xsl:param name="use.local.olink.style" select="0"></xsl:param>

#### Description

When cross reference data is collected for use by olinks, the data for each potential target includes one field containing a completely assembled cross reference string, as if it were an xref generated in that document. Other fields record the separate title, number, and element name of each target. When an olink is formed to a target from another document, the olink resolves to that preassembled string by default. If the use.local.olink.style parameter is set to non-zero, then instead the cross reference string is formed again from the target title, number, and element name, using the stylesheet processing the targeting document. Then olinks will match the xref style in the targeting document rather than in the target document. If both documents are processed with the same stylesheet, then the results will be the same.

current.docid string
current.docid targetdoc identifier for the document being processed

    <xsl:param name="current.docid" select="''"></xsl:param>

#### Description

When olinks between documents are resolved for HTML output, the stylesheet can compute the relative path between the current document and the target document. The stylesheet needs to know the `targetdoc` identifiers for both documents, as they appear in the target.database.document database file. This parameter passes to the stylesheet the targetdoc identifier of the current document, since that identifier does not appear in the document itself.

This parameter can also be used for print output. If an olink's `targetdoc` id differs from the `current.docid`, then the stylesheet can append the target document's title to the generated olink text. That identifies to the reader that the link is to a different document, not the current document. See also olink.doctitle to enable that feature.

olink.doctitle boolean
olink.doctitle show the document title for external olinks?

    <xsl:param name="olink.doctitle" select="0"></xsl:param>

#### Description

When olinks between documents are resolved for print output, the generated text may not make it clear that the reference is to another document. It is possible for the stylesheets to append the other document's title to external olinks. For this to happen, two parameters must be set. The olink.doctitle parameter should be set to nonzero to enable this feature. And you should set the current.docid parameter to the document id for the document currently being processed for output. If an olink's `targetdoc` id differs from the `current.docid`, then the stylesheet can append the target document's title to the generated olink text.

link.mailto.url string
link.mailto.url Mailto URL for the LINK REL=made HTML HEAD element

    <xsl:param name="link.mailto.url"></xsl:param>

#### Description

If not the empty string, this address will be used for the REL=made LINK element in the HTML HEAD.

ulink.target string
ulink.target The HTML anchor target for ULinks

    <xsl:param name="ulink.target" select="'_top'"></xsl:param>

#### Description

If ulink.target is set, its value will be used for the target attribute on anchors generated for ulinks.

olink.fragid string
olink.fragid Names the fragment identifier portion of an OLink resolver query

    <xsl:param name="olink.fragid" select="'fragid='"></xsl:param>

#### Description

FIXME:

olink.outline.ext string
olink.outline.ext The extension of OLink outline files

    <xsl:param name="olink.outline.ext" select="'.olink'"></xsl:param>

#### Description

FIXME:

olink.pubid string
olink.pubid Names the public identifier portion of an OLink resolver query

    <xsl:param name="olink.pubid" select="'pubid='"></xsl:param>

#### Description

FIXME:

olink.sysid string
olink.sysid Names the system identifier portion of an OLink resolver query

    <xsl:param name="olink.sysid" select="'sysid='"></xsl:param>

#### Description

FIXME:

olink.resolver
olink.resolver The root name of the OLink resolver (usually a script)

    <xsl:param name="olink.resolver" select="'/cgi-bin/olink'"></xsl:param>

#### Description

FIXME:

## Bibliography

biblioentry.item.separator string
biblioentry.item.separator Text to separate bibliography entries

    <xsl:param name="biblioentry.item.separator">. </xsl:param>

#### Description

Text to separate bibliography entries

bibliography.collection string
bibliography.collection Name of the bibliography collection file

    <xsl:param name="bibliography.collection" select="'http://docbook.sourceforge.net/release/bibliography/bibliography.xml'"></xsl:param>

#### Description

Maintaining bibliography entries across a set of documents is tedious, time consuming, and error prone. It makes much more sense, usually, to store all of the bibliography entries in a single place and simply extract the ones you need in each document.

That's the purpose of the bibliography.collection parameter. To setup a global bibliography database, follow these steps:

First, create a stand-alone bibliography document that contains all of the documents that you wish to reference. Make sure that each bibliography entry (whether you use biblioentry or bibliomixed) has an ID.

My global bibliography, `~/bibliography.xml` begins like this:

    <!DOCTYPE bibliography
      PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
      "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
    <bibliography><title>References</title>

    <bibliomixed id="xml-rec"><abbrev>XML 1.0</abbrev>Tim Bray,
    Jean Paoli, C. M. Sperberg-McQueen, and Eve Maler, editors.
    <citetitle><ulink url="http://www.w3.org/TR/REC-xml">Extensible Markup
    Language (XML) 1.0 Second Edition</ulink></citetitle>.
    World Wide Web Consortium, 2000.
    </bibliomixed>

    <bibliomixed id="xml-names"><abbrev>Namespaces</abbrev>Tim Bray,
    Dave Hollander,
    and Andrew Layman, editors.
    <citetitle><ulink url="http://www.w3.org/TR/REC-xml-names/">Namespaces in
    XML</ulink></citetitle>.
    World Wide Web Consortium, 1999.
    </bibliomixed>

    <!-- ... -->
    </bibliography>

When you create a bibliography in your document, simply provide empty bibliomixed entries for each document that you wish to cite. Make sure that these elements have the same ID as the corresponding real entry in your global bibliography.

For example:

    <bibliography><title>Bibliography</title>

    <bibliomixed id="xml-rec"/>
    <bibliomixed id="xml-names"/>
    <bibliomixed id="DKnuth86">Donald E. Knuth. <citetitle>Computers and
    Typesetting: Volume B, TeX: The Program</citetitle>. Addison-Wesley,
    1986.  ISBN 0-201-13437-3.
    </bibliomixed>
    <bibliomixed id="relaxng"/>

    </bibliography>

Note that it's perfectly acceptable to mix entries from your global bibliography with normal entries. You can use xref or other elements to cross-reference your bibliography entries in exactly the same way you do now.

Finally, when you are ready to format your document, simply set the bibliography.collection parameter (in either a customization layer or directly through your processor's interface) to point to your global bibliography.

The stylesheets will format the bibliography in your document as if all of the entries referenced appeared there literally.

bibliography.numbered boolean
bibliography.numbered Should bibliography entries be numbered?

    <xsl:param name="bibliography.numbered" select="0"></xsl:param>

#### Description

If non-zero bibliography entries will be numbered

## Glossary

glossterm.auto.link boolean
glossterm.auto.link Generate links from glossterm to glossentry automaticaly?

    <xsl:param name="glossterm.auto.link" select="0"></xsl:param>

#### Description

If true, a link will be automatically created from glossterm to glossentry for that glossary term. This is usefull when your glossterm names are consistent and you don't want to add links manually.

If there is linkend on glossterm then is used instead of autogeneration of link.

firstterm.only.link boolean
firstterm.only.link Does automatic glossterm linking only apply to firstterms?

    <xsl:param name="firstterm.only.link" select="0"></xsl:param>

#### Description

If true, only firstterms will be automatically linked to the glossary. If glossary linking is not enabled, this parameter has no effect.

glossary.collection string
glossary.collection Name of the glossary collection file

    <xsl:param name="glossary.collection" select="''"></xsl:param>

#### Description

Glossaries maintained independently across a set of documents are likely to become inconsistent unless considerable effort is expended to keep them in sync. It makes much more sense, usually, to store all of the glossary entries in a single place and simply extract the ones you need in each document.

That's the purpose of the glossary.collection parameter. To setup a global glossary database, follow these steps:

##### Setting Up the Glossary Database

First, create a stand-alone glossary document that contains all of the entries that you wish to reference. Make sure that each glossary entry has an ID.

Here's an example glossary:

    <?xml version="1.0" encoding="utf-8"?>
    <!DOCTYPE glossary
      PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
      "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
    <glossary>
    <glossaryinfo>
    <editor><firstname>Eric</firstname><surname>Raymond</surname></editor>
    <title>Jargon File 4.2.3 (abridged)</title>
    <releaseinfo>Just some test data</releaseinfo>
    </glossaryinfo>

    <glossdiv><title>0</title>

    <glossentry>
    <glossterm>0</glossterm>
    <glossdef>
    <para>Numeric zero, as opposed to the letter `O' (the 15th letter of
    the English alphabet). In their unmodified forms they look a lot
    alike, and various kluges invented to make them visually distinct have
    compounded the confusion. If your zero is center-dotted and letter-O
    is not, or if letter-O looks almost rectangular but zero looks more
    like an American football stood on end (or the reverse), you're
    probably looking at a modern character display (though the dotted zero
    seems to have originated as an option on IBM 3270 controllers). If
    your zero is slashed but letter-O is not, you're probably looking at
    an old-style ASCII graphic set descended from the default typewheel on
    the venerable ASR-33 Teletype (Scandinavians, for whom /O is a letter,
    curse this arrangement). (Interestingly, the slashed zero long
    predates computers; Florian Cajori's monumental "A History of
    Mathematical Notations" notes that it was used in the twelfth and
    thirteenth centuries.) If letter-O has a slash across it and the zero
    does not, your display is tuned for a very old convention used at IBM
    and a few other early mainframe makers (Scandinavians curse <emphasis>this</emphasis>
    arrangement even more, because it means two of their letters collide).
    Some Burroughs/Unisys equipment displays a zero with a <emphasis>reversed</emphasis>
    slash. Old CDC computers rendered letter O as an unbroken oval and 0
    as an oval broken at upper right and lower left. And yet another
    convention common on early line printers left zero unornamented but
    added a tail or hook to the letter-O so that it resembled an inverted
    Q or cursive capital letter-O (this was endorsed by a draft ANSI
    standard for how to draw ASCII characters, but the final standard
    changed the distinguisher to a tick-mark in the upper-left corner).
    Are we sufficiently confused yet?</para>
    </glossdef>
    </glossentry>

    <glossentry>
    <glossterm>1TBS</glossterm>
    <glossdef>
    <para role="accidence">
    <phrase role="pronounce"></phrase>
    <phrase role="partsofspeach">n</phrase>
    </para>
    <para>The "One True Brace Style"</para>
    <glossseealso>indent style</glossseealso>
    </glossdef>
    </glossentry>

    <!-- ... -->

    </glossdiv>

    <!-- ... -->

    </glossary>

##### Marking Up Glossary Terms

That takes care of the glossary database, now you have to get the entries into your document. Unlike bibliography entries, which can be empty, creating placeholder glossary entries would be very tedious. So instead, support for glossary.collection relies on implicit linking.

In your source document, simply use firstterm and glossterm to identify the terms you wish to have included in the glossary. The stylesheets assume that you will either set the baseform attribute correctly, or that the content of the element exactly matches a term in your glossary.

If you're using a glossary.collection, don't make explicit links on the terms in your document.

So, in your document, you might write things like this:

    <para>This is dummy text, without any real meaning.
    The point is simply to reference glossary terms like <glossterm>0</glossterm>
    and the <firstterm baseform="1TBS">One True Brace Style (1TBS)</firstterm>.
    The <glossterm>1TBS</glossterm>, as you can probably imagine, is a nearly
    religious issue.</para>

If you set the firstterm.only.link parameter, only the terms marked with firstterm will be links. Otherwise, all the terms will be linked.

##### Marking Up the Glossary

The glossary itself has to be identified for the stylesheets. For lack of a better choice, the role is used. To identify the glossary as the target for automatic processing, set the role to `auto`. The title of this glossary (and any other information from the glossaryinfo that's rendered by your stylesheet) will be displayed, but the entries will come from the database.

Unfortunately, the glossary can't be empty, so you must put in at least one glossentry. The content of this entry is irrelevant, it will not be rendered:

    <glossary role="auto">
    <glossentry>
    <glossterm>Irrelevant</glossterm>
    <glossdef>
    <para>If you can see this, the document was processed incorrectly. Use
    the <parameter>glossary.collection</parameter> parameter.</para>
    </glossdef>
    </glossentry>
    </glossary>

What about glossary divisions? If your glossary database has glossary divisions and your automatic glossary contains at least one glossdiv, the automic glossary will have divisions. If the glossdiv is missing from either location, no divisions will be rendered.

Glossary entries (and divisions, if appropriate) in the glossary will occur in precisely the order they occur in your database.

##### Formatting the Document

Finally, when you are ready to format your document, simply set the glossary.collection parameter (in either a customization layer or directly through your processor's interface) to point to your global glossary.

The stylesheets will format the glossary in your document as if all of the entries implicilty referenced appeared there literally.

##### Limitations

Glossary cross-references within the glossary are not supported. For example, this will not work:

    <glossentry>
    <glossterm>gloss-1</glossterm>
    <glossdef><para>A description that references <glossterm>gloss-2</glossterm>.</para>
    <glossseealso>gloss-2</glossseealso>
    </glossdef>
    </glossentry>

If you put glossary cross-references in your glossary that way, you'll get the cryptic error: `Warning: glossary.collection specified, but there are 0 automatic glossaries`.

Instead, you must do two things:

1. Markup your glossary using glossseealso:

       <glossentry>
       <glossterm>gloss-1</glossterm>
       <glossdef><para>A description that references <glossterm>gloss-2</glossterm>.</para>
       <glossseealso>gloss-2</glossseealso>
       </glossdef>
       </glossentry>

2. Make sure there is at least one glossterm reference to gloss-2 in your document. The easiest way to do that is probably within a remark in your automatic glossary:

       <glossary role="auto">
       <remark>Make sure there's a reference to <glossterm>gloss-2</glossterm>.</remark>
       <glossentry>
       <glossterm>Irrelevant</glossterm>
       <glossdef>
       <para>If you can see this, the document was processed incorrectly. Use
       the <parameter>glossary.collection</parameter> parameter.</para>
       </glossdef>
       </glossentry>
       </glossary>

glossentry.show.acronym list
glossentry.show.acronym Display glossentry acronyms?

    <xsl:param name="glossentry.show.acronym" select="'no'"></xsl:param>

#### Description

A setting of yes means they should be displayed; no means they shouldn't. If primary is used, then they are shown as the primary text for the entry.

This setting controls both acronym and abbrev elements in the glossentry.

## Miscellaneous

formal.procedures boolean
formal.procedures Selects formal or informal procedures

    <xsl:param name="formal.procedures" select="1"></xsl:param>

#### Description

Formal procedures are numbered and always have a title.

formal.title.placement
formal.title.placement

    <xsl:param name="formal.title.placement">
    figure before
    example before
    equation before
    table before
    procedure before
    task before
    </xsl:param>

#### Description

Specifies where formal object titles should occur. For each formal object type (figure, example, equation, table, and procedure) you can specify either the keyword `before` or `after`.

runinhead.default.title.end.punct string
runinhead.default.title.end.punct Default punctuation character on a run-in-head

    <xsl:param name="runinhead.default.title.end.punct" select="'.'"></xsl:param>

#### Description

FIXME:

runinhead.title.end.punct string
runinhead.title.end.punct Characters that count as punctuation on a run-in-head

    <xsl:param name="runinhead.title.end.punct" select="'.!?:'"></xsl:param>

#### Description

FIXME:

show.comments boolean
show.comments Display comment elements?

    <xsl:param name="show.comments">1</xsl:param>

#### Description

If true (non-zero), comments will be displayed, otherwise they are suppressed. Comments here refers to the comment element, which will be renamed remark in DocBook V4.0, not XML comments (<-- like this -->) which are unavailable.

show.revisionflag boolean
show.revisionflag Enable decoration of elements that have a revisionflag

    <xsl:param name="show.revisionflag">0</xsl:param>

#### Description

If `show.revisionflag` is turned on, then the stylesheets may produce additional markup designed to allow a CSS stylesheet to highlight elements that have specific revisionflag settings.

The markup inserted will be usually be either a <span> or <div> with an appropriate `class` attribute. (The value of the class attribute will be the same as the value of the revisionflag attribute). In some contexts, for example tables, where extra markup would be structurally illegal, the class attribute will be added to the appropriate container element.

In general, the stylesheets only test for revisionflag in contexts where an importing stylesheet would have to redefine whole templates. Most of the revisionflag processing is expected to be done by another stylesheet, for example `changebars.xsl`.

shade.verbatim boolean
shade.verbatim Should verbatim environments be shaded?

    <xsl:param name="shade.verbatim" select="0"></xsl:param>

#### Description

FIXME:

shade.verbatim.style
shade.verbatim.style Properties that specify the style of shaded verbatim listings

    <xsl:attribute-set name="shade.verbatim.style">
      <xsl:attribute name="border">0</xsl:attribute>
      <xsl:attribute name="bgcolor">#E0E0E0</xsl:attribute>
    </xsl:attribute-set>

#### Description

FIXME:

punct.honorific string
punct.honorific Punctuation after an honorific in a personal name.

    <xsl:param name="punct.honorific" select="'.'"></xsl:param>

#### Description

This parameter specifies the punctuation that should be added after an honorific in a personal name.

segmentedlist.as.table boolean
segmentedlist.as.table Format segmented lists as tables?

    <xsl:param name="segmentedlist.as.table" select="0"></xsl:param>

#### Description

If non-zero, segmentedlists will be formatted as tables.

variablelist.as.table boolean
variablelist.as.table Format variablelists as tables?

    <xsl:param name="variablelist.as.table" select="0"></xsl:param>

#### Description

If non-zero, variablelists will be formatted as tables.

This parameter only applys to the HTML transformations. In the FO case, proper list markup is robust enough to handle the formatting. But see also variablelist.as.blocks.

tex.math.in.alt string
tex.math.in.alt TeX notation used for equations

    <xsl:param name="tex.math.in.alt" select="''"></xsl:param>

#### Description

If you want type math directly in TeX notation in equations, this parameter specifies notation used. Currently are supported two values -- `plain` and `latex`. Empty value means that you are not using TeX math at all.

Preferred way for including TeX alternative of math is inside of textobject element. Eg.:

    <inlineequation>
    <inlinemediaobject>
    <imageobject>
    <imagedata fileref="eq1.gif"/>
    </imageobject>
    <textobject><phrase>E=mc squared</phrase></textobject>
    <textobject role="tex"><phrase>E=mc^2</phrase></textobject>
    </inlinemediaobject>
    </inlineequation>

If you are using graphic element, you can store TeX inside alt element:

    <inlineequation>
    <alt role="tex">a^2+b^2=c^2</alt>
    <graphic fileref="a2b2c2.gif"/>
    </inlineequation>

If you want use this feature, you should process your FO with PassiveTeX, which only supports TeX math notation. When calling stylsheet, don't forget to specify also passivetex.extensions=1.

If you want equations in HTML, just process generated file `tex-math-equations.tex` by TeX or LaTeX. Then run dvi2bitmap program on result DVI file. You will get images for equations in your document.

tex.math.file string
tex.math.file Name of temporary file for generating images from equations

    <xsl:param name="tex.math.file" select="'tex-math-equations.tex'"></xsl:param>

#### Description

Name of auxiliary file for TeX equations. This file can be processed by dvi2bitmap to get bitmap versions of equations for HTML output.

tex.math.delims boolean
tex.math.delims Should be equations outputed for processing by TeX automatically surrounded by math mode delimiters

    <xsl:param name="tex.math.delims" select="'1'"></xsl:param>

#### Description

For compatibility with DSSSL based DBTeXMath from Allin Cottrell you should set this parameter to 0.

pixels.per.inch integer
pixels.per.inch How many pixels are there per inch?

    <xsl:param name="pixels.per.inch" select="90"></xsl:param>

#### Description

When lengths are converted to pixels, this value is used to determine the size of a pixel. The default value is taken from the XSL Recommendation.

points.per.em number
points.per.em Specify the nominal size of an em-space in points

    <xsl:param name="points.per.em" select="10"></xsl:param>

#### Description

FIXME:

use.svg boolean
use.svg Allow SVG in the result tree?

    <xsl:param name="use.svg" select="1"></xsl:param>

#### Description

If non-zero, SVG will be considered an acceptable image format. SVG is passed through to the result tree, so correct rendering of the resulting diagram depends on the formatter (FO processor or web browser) that is used to process the output from the stylesheet.

use.role.as.xrefstyle boolean
use.role.as.xrefstyle Use role attribute for xrefstyle on xref?

    <xsl:param name="use.role.as.xrefstyle" select="1"></xsl:param>

#### Description

If non-zero, the role attribute on xref will be used to select the cross reference style. The DocBook Technical Committee recently added an xrefstyle attribute for this purpose. If the xrefstyle attribute is present, role will be ignored, regardless of this setting.

Until an official DocBook release that includes the new attribute, this flag allows role to serve that purpose.

#### Example

The following small stylesheet shows how to configure the stylesheets to make use of the cross reference style:

    <?xml version="1.0"?>
    <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                    version="1.0">

    <xsl:import href="../xsl/html/docbook.xsl"/>

    <xsl:output method="html"/>

    <xsl:param name="local.l10n.xml" select="document('')"/>
    <l:i18n xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0">
      <l:l10n xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" language="en">
       <l:context name="xref">
          <l:template name="chapter" style="title" text="Chapter %n, %t"/>
          <l:template name="chapter" text="Chapter %n"/>
        </l:context>
      </l:l10n>
    </l:i18n>

    </xsl:stylesheet>

With this stylesheet, the cross references in the following document:

    <?xml version="1.0" encoding="utf-8"?>
    <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
                      "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
    <book id="book"><title>Book</title>

    <preface>
    <title>Preface</title>

    <para>Normal: <xref linkend="ch1"/>.</para>
    <para>Title: <xref xrefstyle="title" linkend="ch1"/>.</para>

    </preface>

    <chapter id="ch1">
    <title>First Chapter</title>

    <para>Irrelevant.</para>

    </chapter>
    </book>

will appear as:

Normal: Chapter 1.

Title: Chapter 1, First Chapter.

menuchoice.separator
menuchoice.separator

    <xsl:param name="menuchoice.separator" select="'+'"></xsl:param>

#### Description

Separator used to connect items of a menuchoice other than guimenuitem and guisubmenu. The latter elements are linked with menuchoice.menu.separator.

menuchoice.menu.separator
menuchoice.menu.separator

    <xsl:param name="menuchoice.menu.separator" select="'->'"></xsl:param>

#### Description

Separator used to connect items of a menuchoice with guimenuitem or guisubmenu. Other elements are linked with menuchoice.separator.

default.float.class string
default.float.class Specifies the default float class

    <xsl:param name="default.float.class" select="'before'"></xsl:param>

#### Description

FIXME:

footnote.number.format string
footnote.number.format Identifies the format used for footnote numbers

    <xsl:param name="footnote.number.format" select="'1'"></xsl:param>

#### Description

The footnote.number.format specifies the format to use for footnote numeration (1, i, I, a, or A).

table.footnote.number.format string
table.footnote.number.format Identifies the format used for footnote numbers in tables

    <xsl:param name="table.footnote.number.format" select="'a'"></xsl:param>

#### Description

The table.footnote.number.format specifies the format to use for footnote numeration (1, i, I, a, or A) in tables.

footnote.number.symbols
footnote.number.symbols

    <xsl:param name="footnote.number.symbols" select="''"></xsl:param>

#### Description

If footnote.number.symbols is not the empty string, footnotes will use the characters it contains as footnote symbols. For example, *&#x2020;&#x2021;&#x25CA;&#x2720; will identify footnotes with *, †, ‡, ◊, and ✠. If there are more footnotes than symbols, the stylesheets will fall back to numbered footnotes using footnote.number.format.

The use of symbols for footnotes depends on the ability of your processor (or browser) to render the symbols you select. Not all systems are capable of displaying the full range of Unicode characters. If the quoted characters in the preceding paragraph are not displayed properly, that's a good indicator that you may have trouble using those symbols for footnotes.

table.footnote.number.symbols
table.footnote.number.symbols

    <xsl:param name="table.footnote.number.symbols" select="''"></xsl:param>

#### Description

If table.footnote.number.symbols is not the empty string, table footnotes will use the characters it contains as footnote symbols. For example, *&#x2020;&#x2021;&#x25CA;&#x2720; will identify footnotes with *, †, ‡, ◊, and ✠. If there are more footnotes than symbols, the stylesheets will fall back to numbered footnotes using table.footnote.number.format.

The use of symbols for footnotes depends on the ability of your processor (or browser) to render the symbols you select. Not all systems are capable of displaying the full range of Unicode characters. If the quoted characters in the preceding paragraph are not displayed properly, that's a good indicator that you may have trouble using those symbols for footnotes.

xref.with.number.and.title boolean
xref.with.number.and.title Use number and title in cross references

    <xsl:param name="xref.with.number.and.title" select="1"></xsl:param>

#### Description

FIXME:

xref.label-page.separator string
xref.label-page.separator Punctuation or space separating label from page number in xref

    <xsl:param name="xref.label-page.separator"><xsl:text> </xsl:text></xsl:param>

#### Description

This parameter allows you to control the punctuation of certain types of generated cross reference text. When cross reference text is generated for an xref or olink element using an xrefstyle attribute that makes use of the `select:` feature, and the selected components include both label and page but no title, then the value of this parameter is inserted between label and page number in the output. If a title is included, then other separators are used.

xref.label-title.separator string
xref.label-title.separator Punctuation or space separating label from title in xref

    <xsl:param name="xref.label-title.separator">: </xsl:param>

#### Description

This parameter allows you to control the punctuation of certain types of generated cross reference text. When cross reference text is generated for an xref or olink element using an xrefstyle attribute that makes use of the `select:` feature, and the selected components include both label and title, then the value of this parameter is inserted between label and title in the output.

xref.title-page.separator string
xref.title-page.separator Punctuation or space separating title from page number in xref

    <xsl:param name="xref.title-page.separator"><xsl:text> </xsl:text></xsl:param>

#### Description

This parameter allows you to control the punctuation of certain types of generated cross reference text. When cross reference text is generated for an xref or olink element using an xrefstyle attribute that makes use of the `select:` feature, and the selected components include both title and page number, then the value of this parameter is inserted between title and page number in the output.

insert.xref.page.number string
insert.xref.page.number Turns page numbers in xrefs on and off

    <xsl:param name="insert.xref.page.number">no</xsl:param>

#### Description

The value of this parameter determines if cross references (xrefs) in printed output will include page number citations. It has three possible values.

no

- No page number references will be generated.

yes

- Page number references will be generated for all xref elements. The style of page reference may be changed if an xrefstyle attribute is used.

maybe

- Page number references will not be generated for an xref element unless it has an xrefstyle attribute whose value specifies a page reference.

## Graphics

graphic.default.extension string
graphic.default.extension Default extension for graphic filenames

    <xsl:param name="graphic.default.extension"></xsl:param>

#### Description

If a graphic or mediaobject includes a reference to a filename that does not include an extension, and the format attribute is unspecified, the default extension will be used.

default.image.width length
default.image.width The default width of images

    <xsl:param name="default.image.width" select="''"></xsl:param>

#### Description

If specified, this value will be used for the width attribute on images that do not specify any viewport dimensions.

nominal.image.width length
nominal.image.width The nominal image width

    <xsl:param name="nominal.image.width" select="6 * $pixels.per.inch"></xsl:param>

#### Description

Graphic widths expressed as a percentage are problematic. In the following discussion, we speak of width and contentwidth, but the same issues apply to depth and contentdepth.

A width of 50% means "half of the available space for the image." That's fine. But note that in HTML, this is a dynamic property and the image size will vary if the browser window is resized.

A contentwidth of 50% means "half of the actual image width". But what does that mean if the stylesheets cannot assess the image's actual size? Treating this as a width of 50% is one possibility, but it produces behavior (dynamic scaling) that seems entirely out of character with the meaning.

Instead, the stylesheets define a nominal.image.width and convert percentages to actual values based on that nominal size.

nominal.image.depth length
nominal.image.depth Nominal image depth

    <xsl:param name="nominal.image.depth" select="4 * $pixels.per.inch"></xsl:param>

#### Description

See nominal.image.width.

use.embed.for.svg boolean
use.embed.for.svg Use HTML embed for SVG?

    <xsl:param name="use.embed.for.svg" select="0"></xsl:param>

#### Description

If non-zero, an embed element will be created for SVG figures. An object is always created, this parameter merely controls whether or not an additional embed is generated inside the object.

On the plus side, this may be more portable among browsers and plug-ins. On the minus side, it isn't valid HTML.

make.graphic.viewport boolean
make.graphic.viewport Use tables in HTML to make viewports for graphics

    <xsl:param name="make.graphic.viewport" select="1"></xsl:param>

#### Description

The HTML img element only supports the notion of content-area scaling; it doesn't support the distinction between a content-area and a viewport-area, so we have to make some compromises.

If make.graphic.viewport is non-zero, a table will be used to frame the image. This creates an effective viewport-area.

Tables and alignment don't work together, so this parameter is ignored if alignment is specified on an image.

preferred.mediaobject.role
preferred.mediaobject.role Select which mediaobject to use based on this value of an object's role attribute.

    <xsl:param name="preferred.mediaobject.role"></xsl:param>

#### Description

A mediaobject may contain several objects such as imageobjects. If the parameter use.role.for.mediaobject is non-zero, then the role attribute on imageobjects and other objects within a mediaobject container will be used to select which object will be used. If one of the objects has a role value that matches the preferred.mediaobject.role parameter, then it has first priority for selection. If more than one has such a role value, the first one is used.

See the use.role.for.mediaobject parameter for the sequence of selection.

use.role.for.mediaobject boolean
use.role.for.mediaobject Use role attribute value for selecting which of several objects within a mediaobject to use.

    <xsl:param name="use.role.for.mediaobject" select="1"></xsl:param>

#### Description

If non-zero, the role attribute on imageobjects or other objects within a mediaobject container will be used to select which object will be used.

The order of selection when then parameter is non-zero is:

1. If the stylesheet parameter preferred.mediaobject.role has a value, then the object whose role equals that value is selected.

2. Else if an object's role attribute has a value of `html` for HTML processing or `fo` for FO output, then the first of such objects is selected.

3. Else the first suitable object is selected.

If the value of use.role.for.mediaobject is zero, then role attributes are not considered and the first suitable object with or without a role value is used.

ignore.image.scaling boolean
ignore.image.scaling Tell the stylesheets to ignore the author's image scaling attributes

    <xsl:param name="ignore.image.scaling" select="0"></xsl:param>

#### Description

If non-zero, the scaling attributes on graphics and media objects are ignored.

## Chunking

chunker.output.cdata-section-elements string
chunker.output.cdata-section-elements List of elements to escape with CDATA sections
<xsl:param name="chunker.output.cdata-section-elements" select="''"/>

#### Description

This parameter specifies the list of elements that should be escaped as CDATA sections by the chunking stylesheet. Not all processors support specification of this parameter.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.doctype-public string
chunker.output.doctype-public Public identifer to use in the document type of generated pages
<xsl:param name="chunker.output.doctype-public" select="''"/>

#### Description

This parameter specifies the public identifier that should be used by the chunking stylesheet in the document type declaration of chunked pages. Not all processors support specification of this parameter.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.doctype-system uri
chunker.output.doctype-system System identifier to use for the document type in generated pages
<xsl:param name="chunker.output.doctype-system" select="''"/>

#### Description

This parameter specifies the system identifier that should be used by the chunking stylesheet in the document type declaration of chunked pages. Not all processors support specification of this parameter.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.encoding string
chunker.output.encoding Encoding used in generated pages
<xsl:param name="chunker.output.encoding" select="'ISO-8859-1'"/>

#### Description

This parameter specifies the encoding to be used in files generated by the chunking stylesheet. Not all processors support specification of this parameter.

This parameter used to be named `default.encoding`.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.indent string
chunker.output.indent Specification of indentation on generated pages
<xsl:param name="chunker.output.indent" select="'no'"/>

#### Description

This parameter specifies the value of the indent specification for generated pages. Not all processors support specification of this parameter.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.media-type string
chunker.output.media-type Media type to use in generated pages
<xsl:param name="chunker.output.media-type" select="''"/>

#### Description

This parameter specifies the media type that should be used by the chunking stylesheet. Not all processors support specification of this parameter.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.method list html xml
chunker.output.method Method used in generated pages
<xsl:param name="chunker.output.method" select="'html'"/>

#### Description

This parameter specifies the output method to be used in files generated by the chunking stylesheet.

This parameter used to be named `output.method`.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.omit-xml-declaration
chunker.output.omit-xml-declaration Omit-xml-declaration for generated pages
<xsl:param name="chunker.output.omit-xml-declaration" select="'no'"/>

#### Description

This parameter specifies the value of the omit-xml-declaration specification for generated pages. Not all processors support specification of this parameter.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

chunker.output.standalone string
chunker.output.standalone Standalone declaration for generated pages
<xsl:param name="chunker.output.standalone" select="'no'"/>

#### Description

This parameter specifies the value of the standalone specification for generated pages. Not all processors support specification of this parameter.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

saxon.character.representation string
saxon.character.representation Saxon character representation used in generated HTML pages
<xsl:param name="saxon.character.representation" select="'entity;decimal'"/>

#### Description

This character representation is used in files generated by chunking stylesheet. If you want to suppress entity references for characters with direct representation in default.encoding, set this parameter to value `native`.

This parameter is documented here, but the declaration is actually in the `chunker.xsl` stylesheet module.

html.ext
html.ext Identifies the extension of generated HTML files

    <xsl:param name="html.ext" select="'.html'"></xsl:param>

#### Description

The extension identified by html.ext will be used as the filename extension for chunks created by this stylesheet.

html.extra.head.links boolean
html.extra.head.links Toggle extra HTML head link information

    <xsl:param name="html.extra.head.links" select="0"></xsl:param>

#### Description

If non-zero, extra link elements will be generated in the head of chunked HTML files. These extra links point to chapters, appendixes, sections, etc. as supported by the Site Navigation Bar in Mozilla 1.0 (as of CR1, at least).

root.filename
root.filename Identifies the name of the root HTML file when chunking

    <xsl:param name="root.filename" select="'index'"></xsl:param>

#### Description

The root.filename is the base filename for the chunk created for the root of each document processed.

base.dir
base.dir The base directory of chunks

    <xsl:param name="base.dir" select="''"></xsl:param>

#### Description

If specified, the `base.dir` identifies the output directory for chunks. (If not specified, the output directory is system dependent.)

generate.manifest boolean
generate.manifest Generate a manifest file?

    <xsl:param name="generate.manifest" select="0"></xsl:param>

#### Description

If non-zero, a list of HTML files generated by the stylesheet transformation is written to the file named by the manifest parameter.

manifest string
manifest Name of manifest file

    <xsl:param name="manifest" select="'HTML.manifest'"></xsl:param>

#### Description

The name of the file to which a manifest is written (if the value of the generate.manifest parameter is non-zero).

manifest.in.base.dir boolean
manifest.in.base.dir Should be manifest file written in $base.dir?

    <xsl:param name="manifest.in.base.dir" select="0"></xsl:param>

#### Description

If non-zero manifest file and project files for HTML Help and Eclipse Help are written into base.dir instead of current directory.

chunk.toc string
chunk.toc An explicit TOC to be used for chunking

    <xsl:param name="chunk.toc" select="''"></xsl:param>

#### Description

The chunk.toc identifies an explicit TOC that will be used for chunking. This parameter is only used by the `chunktoc.xsl` stylesheet (and customization layers built from it).

chunk.tocs.and.lots boolean
chunk.tocs.and.lots Should ToC and LoTs be in separate chunks?

    <xsl:param name="chunk.tocs.and.lots" select="0"></xsl:param>

#### Description

If non-zero, ToC and LoT (List of Examples, List of Figures, etc.) will be put in a separate chunk. At the moment, this chunk is not in the normal forward/backward navigation list. Instead, a new link is added to the navigation footer.

This feature is still somewhat experimental. Feedback welcome.

chunk.section.depth integer
chunk.section.depth Depth to which sections should be chunked

    <xsl:param name="chunk.section.depth" select="1"></xsl:param>

#### Description

This parameter sets the depth of section chunking.

chunk.first.sections
chunk.first.sections Chunk the first top-level section?

    <xsl:param name="chunk.first.sections" select="0"></xsl:param>

#### Description

If non-zero, a chunk will be created for the first top-level sect1 or section elements in each component. Otherwise, that section will be part of the chunk for its parent.

chunk.quietly
chunk.quietly Omit the chunked filename messages.

    <xsl:param name="chunk.quietly" select="0"></xsl:param>

#### Description

If zero (the default), the XSL processor emits a message naming each separate chunk filename as it is being output. If nonzero, then the messages are suppressed.

navig.graphics boolean
navig.graphics Use graphics in navigational headers and footers?

    <xsl:param name="navig.graphics" select="0"></xsl:param>

#### Description

If true (non-zero), the navigational headers and footers in chunked HTML are presented in an alternate style that uses graphical icons for Next, Previous, Up, and Home. Default graphics are provided in the distribution.

navig.graphics.extension string
navig.graphics.extension Extension for navigational graphics

    <xsl:param name="navig.graphics.extension" select="'.gif'"></xsl:param>

#### Description

Sets the filename extension to use on navigational graphics used in the headers and footers of chunked HTML.

navig.graphics.path string
navig.graphics.path Path to navigational graphics

    <xsl:param name="navig.graphics.path">images/</xsl:param>

#### Description

Sets the path, probably relative to the directory where the HTML files are created, to the navigational graphics used in the headers and footers of chunked HTML.

navig.showtitles boolean
navig.showtitles Display titles in HTML headers and footers?

    <xsl:param name="navig.showtitles">1</xsl:param>

#### Description

If true (non-zero), the headers and footers of chunked HTML display the titles of the next and previous chunks, along with the words 'Next' and 'Previous' (or the equivalent graphical icons if navig.graphics is true). If false (zero), then only the words 'Next' and 'Previous' (or the icons) are displayed.

## Profiling

Following parameters can be used for attribute value based profiling of your document. For more info about profiling look at http://docbook.sourceforge.net/projects/xsl/doc/tools/profiling.html.

profile.arch string
profile.arch Target profile for arch attribute

    <xsl:param name="profile.arch" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.condition string
profile.condition Target profile for condition attribute

    <xsl:param name="profile.condition" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.conformance string
profile.conformance Target profile for conformance attribute

    <xsl:param name="profile.conformance" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.lang string
profile.lang Target profile for lang attribute

    <xsl:param name="profile.lang" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.os string
profile.os Target profile for os attribute

    <xsl:param name="profile.os" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.revision string
profile.revision Target profile for revision attribute

    <xsl:param name="profile.revision" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.revisionflag string
profile.revisionflag Target profile for revisionflag attribute

    <xsl:param name="profile.revisionflag" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.role string
profile.role Target profile for role attribute

    <xsl:param name="profile.role" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

Note that role is often used for other purposes than profiling. For example it is commonly used to get emphasize in bold font:

    <emphasis role="bold">very important</emphasis>

If you are using role for these purposes do not forget to add values like `bold` to value of this parameter. If you forgot you will get document with small pieces missing which are very hard to track.

For this reason it is not recommended to use role attribute for profiling. You should rather use profiling specific attributes like userlevel, os, arch, condition, etc.

profile.security string
profile.security Target profile for security attribute

    <xsl:param name="profile.security" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.userlevel string
profile.userlevel Target profile for userlevel attribute

    <xsl:param name="profile.userlevel" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.vendor string
profile.vendor Target profile for vendor attribute

    <xsl:param name="profile.vendor" select="''"></xsl:param>

#### Description

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.attribute string
profile.attribute Name of user-specified profiling attribute

    <xsl:param name="profile.attribute" select="''"></xsl:param>

#### Description

This parameter is used in conjuction with profile.value.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.value string
profile.value Target profile for user-specified attribute

    <xsl:param name="profile.value" select="''"></xsl:param>

#### Description

When you are using this parameter you must also specify name of profiling attribute with parameter profile.attribute.

Value of this parameter specifies profiles which should be included in the output. You can specify multiple profiles by separating them by semicolon. You can change separator character by profile.separator parameter.

This parameter has effect only when you are using profiling stylesheets (`profile-docbook.xsl`, `profile-chunk.xsl`, …) instead of normal ones (`docbook.xsl`, `chunk.xsl`, …).

profile.separator string
profile.separator Separator character for compound profile values

    <xsl:param name="profile.separator" select="';'"></xsl:param>

#### Description

Separator character for compound profile values.

## HTML Help

htmlhelp.encoding string
htmlhelp.encoding Character encoding to use in files for HTML Help compiler.

    <xsl:param name="htmlhelp.encoding" select="'iso-8859-1'"></xsl:param>

#### Description

HTML Help Compiler is not UTF-8 aware, so you should always use apropriate single-byte encoding here.

htmlhelp.autolabel boolean
htmlhelp.autolabel Should tree-like ToC use autonumbering feature?

    <xsl:param name="htmlhelp.autolabel" select="0"></xsl:param>

#### Description

If you want to include chapter and section numbers into ToC in the left panel, set this parameter to 1.

htmlhelp.chm string
htmlhelp.chm Filename of output HTML Help file.

    <xsl:param name="htmlhelp.chm" select="'htmlhelp.chm'"></xsl:param>

#### Description

Change this parameter if you want different name of result CHM file than htmlhelp.chm.

htmlhelp.default.topic string
htmlhelp.default.topic Name of file with default topic

    <xsl:param name="htmlhelp.default.topic" select="''"></xsl:param>

#### Description

Normally first chunk of document is displayed when you open HTML Help file. If you want to display another topic, simply set its filename by this parameter.

This is useful especially if you don't generate ToC in front of your document and you also hide root element in ToC. E.g.:

    <xsl:param name="generate.book.toc" select="0"/>
    <xsl:param name="htmlhelp.hhc.show.root" select="0"/>
    <xsl:param name="htmlhelp.default.topic" select="'pr01.html'"/>

htmlhelp.display.progress boolean
htmlhelp.display.progress Display compile progress?

    <xsl:param name="htmlhelp.display.progress" select="1"></xsl:param>

#### Description

You can swith off display of compile progress by setting this parameter to 0.

htmlhelp.hhp string
htmlhelp.hhp Filename of project file.

    <xsl:param name="htmlhelp.hhp" select="'htmlhelp.hhp'"></xsl:param>

#### Description

Change this parameter if you want different name of project file than htmlhelp.hhp.

htmlhelp.hhc string
htmlhelp.hhc Filename of TOC file.

    <xsl:param name="htmlhelp.hhc" select="'toc.hhc'"></xsl:param>

#### Description

Change this parameter if you want different name of TOC file than toc.hhc.

htmlhelp.hhk string
htmlhelp.hhk Filename of index file.

    <xsl:param name="htmlhelp.hhk" select="'index.hhk'"></xsl:param>

#### Description

Change this parameter if you want different name of index file than index.hhk.

htmlhelp.hhp.tail string
htmlhelp.hhp.tail Additional content for project file.

    <xsl:param name="htmlhelp.hhp.tail"></xsl:param>

#### Description

If you want to include some additional parameters into project file, store appropriate part of project file into this parameter.

htmlhelp.hhp.window string
htmlhelp.hhp.window Name of default window.

    <xsl:param name="htmlhelp.hhp.window" select="'Main'"></xsl:param>

#### Description

Name of default window. If empty no [WINDOWS] section will be added to project file.

htmlhelp.hhp.windows string
htmlhelp.hhp.windows Definition of additional windows

    <xsl:param name="htmlhelp.hhp.windows"></xsl:param>

#### Description

Content of this parameter is placed at the end of [WINDOWS] section of project file. You can use it for defining your own addtional windows.

htmlhelp.enhanced.decompilation boolean
htmlhelp.enhanced.decompilation Allow enhanced decompilation of CHM?

    <xsl:param name="htmlhelp.enhanced.decompilation" select="0"></xsl:param>

#### Description

When set to 1 this parameter enables enhanced decompilation of CHM.

htmlhelp.enumerate.images boolean
htmlhelp.enumerate.images Should be paths to all used images added to project file?

    <xsl:param name="htmlhelp.enumerate.images" select="0"></xsl:param>

#### Description

You should turn on this flag, if you insert images into your documents as external binary entities or if you are using absolute path in image names.

htmlhelp.force.map.and.alias boolean
htmlhelp.force.map.and.alias Should be [MAP] and [ALIAS] section added to project file unconditionaly?

    <xsl:param name="htmlhelp.force.map.and.alias" select="0"></xsl:param>

#### Description

You should turn on this flag, if you have your own `alias.h` and `contex.h` files and you want include reference to them in project file.

htmlhelp.map.file string
htmlhelp.map.file Filename of map file.

    <xsl:param name="htmlhelp.map.file" select="'context.h'"></xsl:param>

#### Description

Change this parameter if you want different name of map file than `context.h`.

htmlhelp.alias.file string
htmlhelp.alias.file Filename of map file.

    <xsl:param name="htmlhelp.alias.file" select="'alias.h'"></xsl:param>

#### Description

Change this parameter if you want different name of map file than `alias.h`.

htmlhelp.hhc.section.depth integer
htmlhelp.hhc.section.depth Depth of TOC for sections in a left pane.

    <xsl:param name="htmlhelp.hhc.section.depth" select="5"></xsl:param>

#### Description

Change this parameter if you want shallower ToC in a left pane of HTML Help viewer.

htmlhelp.hhc.show.root boolean
htmlhelp.hhc.show.root Should be entry for root element shown in ToC?

    <xsl:param name="htmlhelp.hhc.show.root" select="1"></xsl:param>

#### Description

If set to 0, there will be no entry for root element in ToC. This is useful when you want provide user with expanded ToC as a default.

htmlhelp.hhc.folders.instead.books
htmlhelp.hhc.folders.instead.books

    <xsl:param name="htmlhelp.hhc.folders.instead.books" select="1"></xsl:param>

#### Description

This parameter controls whether there should be folder-like icons (1) or book-like icons (0) in ToC. If you want to use folder-like icons you must swith off binary ToC using htmlhelp.hhc.binary.

htmlhelp.hhc.binary
htmlhelp.hhc.binary

    <xsl:param name="htmlhelp.hhc.binary" select="1"></xsl:param>

#### Description

This parametr controls whether binary TOC will be generated. You must create binary TOC if you want to add Prev/Next buttons to toolbar (which is default behaviour). Files with binary TOC can't be merged.

htmlhelp.hhc.width integer
htmlhelp.hhc.width Width of navigation (ToC) pane

    <xsl:param name="htmlhelp.hhc.width"></xsl:param>

#### Description

This parameter specifies width of ToC pane in pixels.

htmlhelp.title string
htmlhelp.title Title of HTML Help

    <xsl:param name="htmlhelp.title" select="''"></xsl:param>

#### Description

Content of this parameter will be used as a title for generated HTML Help. If empty, title will be automatically taken from document.

htmlhelp.show.menu boolean
htmlhelp.show.menu Should be menu shown?

    <xsl:param name="htmlhelp.show.menu" select="0"></xsl:param>

#### Description

If you want application menu in your HTML Help file, turn this parameter to 1.

htmlhelp.show.toolbar.text boolean
htmlhelp.show.toolbar.text Show text under toolbar buttons?

    <xsl:param name="htmlhelp.show.toolbar.text" select="1"></xsl:param>

#### Description

You can switch off display of texts under toolbar buttons by setting this parameter to 0.

htmlhelp.show.advanced.search boolean
htmlhelp.show.advanced.search Should be advanced search available?

    <xsl:param name="htmlhelp.show.advanced.search" select="0"></xsl:param>

#### Description

If you want advanced search features in your help, turn this parameter to 1.

htmlhelp.show.favorities boolean
htmlhelp.show.favorities Should be favorities tab shown?

    <xsl:param name="htmlhelp.show.favorities" select="0"></xsl:param>

#### Description

If you want favorities tab shown in your help, turn this parameter to 1.

htmlhelp.button.hideshow boolean
htmlhelp.button.hideshow Should be Hide/Show button shown?

    <xsl:param name="htmlhelp.button.hideshow" select="1"></xsl:param>

#### Description

If you want Hide/Show button shown on toolbar, turn this parameter to 1.

htmlhelp.button.back boolean
htmlhelp.button.back Should be Back button shown?

    <xsl:param name="htmlhelp.button.back" select="1"></xsl:param>

#### Description

If you want Back button shown on toolbar, turn this parameter to 1.

htmlhelp.button.forward boolean
htmlhelp.button.forward Should be Forward button shown?

    <xsl:param name="htmlhelp.button.forward" select="0"></xsl:param>

#### Description

If you want Forward button shown on toolbar, turn this parameter to 1.

htmlhelp.button.stop boolean
htmlhelp.button.stop Should be Stop button shown?

    <xsl:param name="htmlhelp.button.stop" select="0"></xsl:param>

#### Description

If you want Stop button shown on toolbar, turn this parameter to 1.

htmlhelp.button.refresh boolean
htmlhelp.button.refresh Should be Refresh button shown?

    <xsl:param name="htmlhelp.button.refresh" select="0"></xsl:param>

#### Description

If you want Refresh button shown on toolbar, turn this parameter to 1.

htmlhelp.button.home boolean
htmlhelp.button.home Should be Home button shown?

    <xsl:param name="htmlhelp.button.home" select="0"></xsl:param>

#### Description

If you want Home button shown on toolbar, turn this parameter to 1.

htmlhelp.button.home.url string
htmlhelp.button.home.url URL address of page accessible by Home button

    <xsl:param name="htmlhelp.button.home.url"></xsl:param>

#### Description

URL address of page accessible by Home button.

htmlhelp.button.options boolean
htmlhelp.button.options Should be Options button shown?

    <xsl:param name="htmlhelp.button.options" select="1"></xsl:param>

#### Description

If you want Options button shown on toolbar, turn this parameter to 1.

htmlhelp.button.print boolean
htmlhelp.button.print Should be Print button shown?

    <xsl:param name="htmlhelp.button.print" select="1"></xsl:param>

#### Description

If you want Print button shown on toolbar, turn this parameter to 1.

htmlhelp.button.locate boolean
htmlhelp.button.locate Should be Locate button shown?

    <xsl:param name="htmlhelp.button.locate" select="0"></xsl:param>

#### Description

If you want Locate button shown on toolbar, turn this parameter to 1.

htmlhelp.button.jump1 boolean
htmlhelp.button.jump1 Should be Jump1 button shown?

    <xsl:param name="htmlhelp.button.jump1" select="0"></xsl:param>

#### Description

If you want Jump1 button shown on toolbar, turn this parameter to 1.

htmlhelp.button.jump1.url string
htmlhelp.button.jump1.url URL address of page accessible by Jump1 button

    <xsl:param name="htmlhelp.button.jump1.url"></xsl:param>

#### Description

URL address of page accessible by Jump1 button.

htmlhelp.button.jump1.title string
htmlhelp.button.jump1.title Title of Jump1 button

    <xsl:param name="htmlhelp.button.jump1.title" select="'User1'"></xsl:param>

#### Description

Title of Jump1 button.

htmlhelp.button.jump2 boolean
htmlhelp.button.jump2 Should be Jump2 button shown?

    <xsl:param name="htmlhelp.button.jump2" select="0"></xsl:param>

#### Description

If you want Jump2 button shown on toolbar, turn this parameter to 1.

htmlhelp.button.jump2.url string
htmlhelp.button.jump2.url URL address of page accessible by Jump2 button

    <xsl:param name="htmlhelp.button.jump2.url"></xsl:param>

#### Description

URL address of page accessible by Jump2 button.

htmlhelp.button.jump2.title string
htmlhelp.button.jump2.title Title of Jump2 button

    <xsl:param name="htmlhelp.button.jump2.title" select="'User2'"></xsl:param>

#### Description

Title of Jump2 button.

htmlhelp.button.next boolean
htmlhelp.button.next Should be Next button shown?

    <xsl:param name="htmlhelp.button.next" select="1"></xsl:param>

#### Description

If you want Next button shown on toolbar, turn this parameter to 1.

htmlhelp.button.prev boolean
htmlhelp.button.prev Should be Prev button shown?

    <xsl:param name="htmlhelp.button.prev" select="1"></xsl:param>

#### Description

If you want Prev button shown on toolbar, turn this parameter to 1.

htmlhelp.button.zoom boolean
htmlhelp.button.zoom Should be Zoom button shown?

    <xsl:param name="htmlhelp.button.zoom" select="0"></xsl:param>

#### Description

If you want Zoom button shown on toolbar, turn this parameter to 1.

htmlhelp.remember.window.position boolean
htmlhelp.remember.window.position Remember help window position?

    <xsl:param name="htmlhelp.remember.window.position" select="0"></xsl:param>

#### Description

To remember help window position between starts set this parameter to 1.

htmlhelp.window.geometry string
htmlhelp.window.geometry Set initial geometry of help window

    <xsl:param name="htmlhelp.window.geometry"></xsl:param>

#### Description

This parameter specifies initial position of help window. E.g.

    <xsl:param name="htmlhelp.window.geometry">[160,64,992,704]</xsl:param>

htmlhelp.use.hhk boolean
htmlhelp.use.hhk Should be index built using HHK file?

    <xsl:param name="htmlhelp.use.hhk" select="0"></xsl:param>

#### Description

If non-zero, index is created using HHK file. This provides some new features.

htmlhelp.only boolean
htmlhelp.only Should be only project files generated?

    <xsl:param name="htmlhelp.only" select="0"></xsl:param>

#### Description

If you want to play with various HTML Help parameters and you don't need to regenerate all HTML files, you can set this parameter to 1. This setting will not process whole document, only project files (hhp, hhc, hhk,...) will be generated.

## Eclipse Help Platform

eclipse.autolabel boolean
eclipse.autolabel Should tree-like ToC use autonumbering feature?

    <xsl:param name="eclipse.autolabel" select="0"></xsl:param>

#### Description

If you want to include chapter and section numbers into ToC in the left panel, set this parameter to 1.

eclipse.plugin.name string
eclipse.plugin.name Eclipse Help plugin name

    <xsl:param name="eclipse.plugin.name">DocBook Online Help Sample</xsl:param>

#### Description

Eclipse Help plugin name.

eclipse.plugin.id string
eclipse.plugin.id Eclipse Help plugin id

    <xsl:param name="eclipse.plugin.id">com.example.help</xsl:param>

#### Description

Eclipse Help plugin id. You should change this id to something unique for each help.

eclipse.plugin.provider string
eclipse.plugin.provider Eclipse Help plugin provider name

    <xsl:param name="eclipse.plugin.provider">Example provider</xsl:param>

#### Description

Eclipse Help plugin provider name.

## Localization

l10n.gentext.language string
l10n.gentext.language Sets the gentext language

    <xsl:param name="l10n.gentext.language" select="''"></xsl:param>

#### Description

If this parameter is set to any value other than the empty string, its value will be used as the value for the language when generating text. Setting l10n.gentext.language overrides any settings within the document being formatted.

It's much more likely that you might want to set the l10n.gentext.default.language parameter.

l10n.gentext.default.language string
l10n.gentext.default.language Sets the default language for generated text

    <xsl:param name="l10n.gentext.default.language" select="'en'"></xsl:param>

#### Description

The value of the l10n.gentext.default.language parameter is used as the language for generated text if no setting is provided in the source document.

l10n.gentext.use.xref.language boolean
l10n.gentext.use.xref.language Use the language of target when generating cross-reference text?

    <xsl:param name="l10n.gentext.use.xref.language" select="0"></xsl:param>

#### Description

If non-zero, the language of the target will be used when generating cross reference text. Usually, the current language is used when generating text (that is, the language of the element that contains the cross-reference element). But setting this parameter allows the language of the element pointed to to control the generated text.

Consider the following example:

    <para lang="en">See also <xref linkend="chap3"/>.</para>

Suppose that Chapter 3 happens to be written in German. If l10n.gentext.use.xref.language is non-zero, the resulting text will be something like this:

> See also Kapital 3.

Where the more traditional rendering would be:

> See also Chapter 3.

## The Stylesheet

The `param.xsl` stylesheet is just a wrapper around all these parameters.

    <!-- This file is generated from param.xweb; do not edit this file! -->

    <xsl:stylesheet exclude-result-prefixes="src" version="1.0">

    <!-- ********************************************************************
         $Id: param.xml 1341 2006-08-02 16:35:13Z telrod $
         ********************************************************************

         This file is part of the XSL DocBook Stylesheet distribution.
         See ../README or http://nwalsh.com/docbook/xsl/ for copyright
         and other information.

         ******************************************************************** -->

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