# FO Parameter Reference

$Id: param.xweb,v 1.56 2003/05/15 17:30:35 kosek Exp $
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/current/fo/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 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.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.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.

admonition.title.properties To set the style for admonitions titles.

    <xsl:attribute-set name="admonition.title.properties">
      <xsl:attribute name="font-size">14pt</xsl:attribute>
      <xsl:attribute name="font-weight">bold</xsl:attribute>
      <xsl:attribute name="hyphenate">false</xsl:attribute>
      <xsl:attribute name="keep-with-next.within-column">always</xsl:attribute>
    </xsl:attribute-set>

#### Description

How do you want admonitions titles styled?

Set the font-size, weight etc to the style required.

admonition.properties To set the style for admonitions.

    <xsl:attribute-set name="admonition.properties"></xsl:attribute-set>

#### Description

How do you want admonitions styled?

Set the font-size, weight, etc. to the style required

## 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 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.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.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.

callout.unicode.font
callout.unicode.font Specify a font for Unicode glyphs

    <xsl:param name="callout.unicode.font" select="'ZapfDingbats'"></xsl:param>

#### Description

The name of the font to specify around Unicode callout glyphs. If set to the empty string, no font change will occur.

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.

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.

## ToC/LoT/Index Generation

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

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

#### Description

FIXME:

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

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

#### Description

FIXME:

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.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.

make.index.markup boolean
make.index.markup Generate XML index markup in the index?

    <xsl:param name="make.index.markup" select="0"></xsl:param>

#### Description

This parameter enables a very neat trick for getting properly merged, collated back-of-the-book indexes. G. Ken Holman suggested this trick at Extreme Markup Languages 2002 and I'm indebted to him for it.

Jeni Tennison's excellent code in `autoidx.xsl` does a great job of merging and sorting indexterms in the document and building a back-of-the-book index. However, there's one thing that it cannot reasonably be expected to do: merge page numbers into ranges. (I would not have thought that it could collate and suppress duplicate page numbers, but in fact it appears to manage that task somehow.)

Ken's trick is to produce a document in which the index at the back of the book is displayed in XML. Because the index is generated by the FO processor, all of the page numbers have been resolved. It's a bit hard to explain, but what it boils down to is that instead of having an index at the back of the book that looks like this:

> A

> ap1, 1, 2, 3

you get one that looks like this:

>     <indexdiv>A</indexdiv>
>     <indexentry>
>     <primaryie>ap1</primaryie>,
>     <phrase role="pageno">1</phrase>,
>     <phrase role="pageno">2</phrase>,
>     <phrase role="pageno">3</phrase>
>     </indexentry>

After building a PDF file with this sort of odd-looking index, you can extract the text from the PDF file and the result is a proper index expressed in XML.

Now you have data that's amenable to processing and a simple Perl script (such as `fo/pdf2index`) can merge page ranges and generate a proper index.

Finally, reformat your original document using this literal index instead of an automatically generated one and bingo!

xep.index.item.properties Properties associated with XEP index-items

    <xsl:attribute-set name="xep.index.item.properties">
      <xsl:attribute name="merge-subsequent-page-numbers">true</xsl:attribute>
      <xsl:attribute name="link-back">true</xsl:attribute>
    </xsl:attribute-set>

#### Description

Properties associated with XEP index-items. For more info see http://xep.xattic.com/xep/spec.html.

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.indent.width float
toc.indent.width Amount of indentation for TOC entries

    <xsl:param name="toc.indent.width" select="24"></xsl:param>

#### Description

Specifies, in points, the distance by which each level of the TOC is indented from its parent.

This value is expressed in points, without a unit (in other words, it is a bare number). Using a bare number allows the stylesheet to perform calculations that would otherwise have to be performed by the FO processor because not all processors support expressions.

toc.margin.properties Margin properties used on Tables of Contents

    <xsl:attribute-set name="toc.margin.properties">
      <xsl:attribute name="space-before.minimum">0.5em</xsl:attribute>
      <xsl:attribute name="space-before.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">2em</xsl:attribute>
      <xsl:attribute name="space-after.minimum">0.5em</xsl:attribute>
      <xsl:attribute name="space-after.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-after.maximum">2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

This attribute set is used on Tables of Contents. These attributes are set on the wrapper that surrounds the ToC block, not on each individual lines.

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.

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.

## Processor Extensions

arbortext.extensions boolean
arbortext.extensions Enable Arbortext extensions?

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

#### Description

If non-zero, Arbortext extensions will be used.

axf.extensions boolean
axf.extensions Enable XSL Formatter extensions?

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

#### Description

If non-zero, XSL Formatter extensions will be used. XSL Formatter extensions consists of PDF bookmarks, document information and better index processing.

fop.extensions boolean
fop.extensions Enable FOP extensions?

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

#### Description

If non-zero, FOP extensions will be used. At present, this consists of PDF bookmarks.

passivetex.extensions boolean
passivetex.extensions Enable PassiveTeX extensions?

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

#### Description

If non-zero, PassiveTeX extensions will be used. At present, this consists of PDF bookmarks and sorted index terms.

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.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.

xep.extensions boolean
xep.extensions Enable XEP extensions?

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

#### Description

If non-zero, XEP extensions will be used. XEP extensions consists of PDF bookmarks, document information and better index processing.

## Stylesheet 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).

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

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.

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.

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.

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.

## 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.

## Meta/*Info

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.

## 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.

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.title.properties attribute set
refentry.title.properties Title properties for a refentry title

    <xsl:attribute-set name="refentry.title.properties">
      <xsl:attribute name="font-family">
        <xsl:value-of select="$title.font.family"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="font-size">18pt</xsl:attribute>
      <xsl:attribute name="font-weight">bold</xsl:attribute>
      <xsl:attribute name="space-after">1em</xsl:attribute>
      <xsl:attribute name="hyphenate">false</xsl:attribute>
      <xsl:attribute name="keep-with-next.within-column">always</xsl:attribute>
      <xsl:attribute name="space-after.optimum">0.5em</xsl:attribute>
      <xsl:attribute name="space-after.minimum">0.4em</xsl:attribute>
      <xsl:attribute name="space-after.maximum">0.6em</xsl:attribute>
    </xsl:attribute-set>

#### Description

FIXME:

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.

## 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.cell.padding
table.cell.padding

    <xsl:attribute-set name="table.cell.padding">
      <xsl:attribute name="padding-left">2pt</xsl:attribute>
      <xsl:attribute name="padding-right">2pt</xsl:attribute>
      <xsl:attribute name="padding-top">2pt</xsl:attribute>
      <xsl:attribute name="padding-bottom">2pt</xsl:attribute>
    </xsl:attribute-set>

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

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

#### Description

FIXME:

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

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

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

#### Description

FIXME:

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

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

#### Description

FIXME:

## 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.

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.

## QAndASet

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.

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.

## 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>

glossterm.separation length
glossterm.separation Separation between glossary terms and descriptions in list mode

    <xsl:param name="glossterm.separation" select="'0.25in'"></xsl:param>

#### Description

Specifies the separation between glossary terms and descriptions when glossarys are presented using lists.

glossterm.width length
glossterm.width Width of glossterm in list presentation mode

    <xsl:param name="glossterm.width" select="'2in'"></xsl:param>

#### Description

This parameter specifies the width reserved for glossary terms when a list presentation is used.

glossary.as.blocks boolean
glossary.as.blocks Present glossarys using blocks instead of lists?

    <xsl:param name="glossary.as.blocks" select="0"></xsl:param>

#### Description

If non-zero, glossarys will be formatted as blocks.

If you have long glossterms, proper list markup in the FO case may produce unattractive lists. By setting this parameter, you can force the stylesheets to produce block markup instead of proper lists.

You can override this setting with a processing instruction as the child of glossary: dbfo glossary-presentation="blocks" or dbfo glossary-presentation="list"

glosslist.as.blocks boolean
glosslist.as.blocks Use blocks for glosslists?

    <xsl:param name="glosslist.as.blocks" select="0"></xsl:param>

#### Description

See glossary.as.blocks.

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
    </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.

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.blocks boolean
variablelist.as.blocks Format variablelists lists as blocks?

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

#### Description

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

If you have long terms, proper list markup in the FO case may produce unattractive lists. By setting this parameter, you can force the stylesheets to produce block markup instead of proper lists.

You can override this setting with a processing instruction as the child of variablelist: dbfo list-presentation="blocks" or dbfo list-presentation="list"

      <variablelist>
            <?dbfo list-presentation="list"?>
            <varlistentry>
              <term>list</term>
              <listitem>
                    <para>
                      Formatted as a list even if variablelist.as.blocks is set to 1.
                    </para>
              </listitem>
            </varlistentry>
      </variablelist>

blockquote.properties To set the style for block quotations.

    <xsl:attribute-set name="blockquote.properties">
    <xsl:attribute name="start-indent">0.5in</xsl:attribute>
    <xsl:attribute name="end-indent">0.5in</xsl:attribute>
    <xsl:attribute name="space-after.minimum">0.5em</xsl:attribute>
    <xsl:attribute name="space-after.optimum">1em</xsl:attribute>
    <xsl:attribute name="space-after.maximum">2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

The blockquote.properties attribute set specifies the formating properties of block quotations.

ulink.show boolean
ulink.show Display URLs after ulinks?

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

#### Description

If non-zero, the URL of each ULink will appear after the text of the link. If the text of the link and the URL are identical, the URL is suppressed.

ulink.footnotes boolean
ulink.footnotes Generate footnotes for ULinks?

    <xsl:param name="ulink.footnotes" select="0"></xsl:param>

#### Description

If non-zero, the URL of each ULink will appear as a footnote.

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

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

#### Description

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

ulink.hyphenate string
ulink.hyphenate Allow URLs to be automatically hyphenated

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

#### Description

If not empty, the specified character (or more generally, content) is added to URLs after every /. If the character specified is a Unicode soft hyphen (0x00AD) or Unicode zero-width space (0x200B), some FO processors will be able to reasonably hyphenate long URLs.

As of 28 Jan 2002, discretionary hyphens are more widely and correctly supported than zero-width spaces for this purpose.

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="background-color">#E0E0E0</xsl:attribute>
    </xsl:attribute-set>

#### 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:

## 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.

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.mediaojbect.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.

## Pagination and General Styles

#### Understanding XSL FO Margins

In order for the parameters in this section to make sense, it is useful to consider .

Figure showing page margins

This figure shows the physical page with the various FO page regions identified.

First, let's consider the regions on the page.

The white region is the physical page. Its dimensions are determined by the page.height and page.width parameters.

The yellow region is the region-body. The size and placement of the region body is constrained by the dimensions labelled in the figure.

The pink region at the top of the page is the region-before. The darker area inside the region-before is the header text. In XSL, the default display alignment for a region is `before`, but the DocBook stylesheets still explicitly make it `before`. That's why the darker area is at the top.

The pink region at the bottom of the page is the region-after. The darker area is the footer text. In XSL, the default display alignment for a region is `before`, but the DocBook stylesheets explicitly make it `after`. That's why the darker area is at the bottom.

The dimensions in the figure are:

1. The page-master margin-top.

2. The region-before extent.

3. The region-body margin-top.

4. The region-after extent.

5. The page-master margin-bottom.

6. The region-body margin-bottom.

7. The sum of the page-master margin-left and the region-body margin-left. In DocBook, the region-body margin-left is zero by default, so this is simply the page-master region-left.

8. The sum of the page-master margin-right and the region-body margin-right. In DocBook, the region-body margin-right is zero by default, so this is simply the page-master region-left.

page.height
page.height The height of the physical page

    <xsl:param name="page.height">
      <xsl:choose>
        <xsl:when test="$page.orientation = 'portrait'">
          <xsl:value-of select="$page.height.portrait"></xsl:value-of>
        </xsl:when>
        <xsl:otherwise>
          <xsl:value-of select="$page.width.portrait"></xsl:value-of>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:param>

#### Description

The page height is generally calculated from the `paper.type` and `page.orientation`.

page.height.portrait
page.height.portrait Specify the physical size of the long edge of the page

    <xsl:param name="page.height.portrait">
      <xsl:choose>
        <xsl:when test="$paper.type = 'A4landscape'">210mm</xsl:when>
        <xsl:when test="$paper.type = 'USletter'">11in</xsl:when>
        <xsl:when test="$paper.type = 'USlandscape'">8.5in</xsl:when>
        <xsl:when test="$paper.type = '4A0'">2378mm</xsl:when>
        <xsl:when test="$paper.type = '2A0'">1682mm</xsl:when>
        <xsl:when test="$paper.type = 'A0'">1189mm</xsl:when>
        <xsl:when test="$paper.type = 'A1'">841mm</xsl:when>
        <xsl:when test="$paper.type = 'A2'">594mm</xsl:when>
        <xsl:when test="$paper.type = 'A3'">420mm</xsl:when>
        <xsl:when test="$paper.type = 'A4'">297mm</xsl:when>
        <xsl:when test="$paper.type = 'A5'">210mm</xsl:when>
        <xsl:when test="$paper.type = 'A6'">148mm</xsl:when>
        <xsl:when test="$paper.type = 'A7'">105mm</xsl:when>
        <xsl:when test="$paper.type = 'A8'">74mm</xsl:when>
        <xsl:when test="$paper.type = 'A9'">52mm</xsl:when>
        <xsl:when test="$paper.type = 'A10'">37mm</xsl:when>
        <xsl:when test="$paper.type = 'B0'">1414mm</xsl:when>
        <xsl:when test="$paper.type = 'B1'">1000mm</xsl:when>
        <xsl:when test="$paper.type = 'B2'">707mm</xsl:when>
        <xsl:when test="$paper.type = 'B3'">500mm</xsl:when>
        <xsl:when test="$paper.type = 'B4'">353mm</xsl:when>
        <xsl:when test="$paper.type = 'B5'">250mm</xsl:when>
        <xsl:when test="$paper.type = 'B6'">176mm</xsl:when>
        <xsl:when test="$paper.type = 'B7'">125mm</xsl:when>
        <xsl:when test="$paper.type = 'B8'">88mm</xsl:when>
        <xsl:when test="$paper.type = 'B9'">62mm</xsl:when>
        <xsl:when test="$paper.type = 'B10'">44mm</xsl:when>
        <xsl:when test="$paper.type = 'C0'">1297mm</xsl:when>
        <xsl:when test="$paper.type = 'C1'">917mm</xsl:when>
        <xsl:when test="$paper.type = 'C2'">648mm</xsl:when>
        <xsl:when test="$paper.type = 'C3'">458mm</xsl:when>
        <xsl:when test="$paper.type = 'C4'">324mm</xsl:when>
        <xsl:when test="$paper.type = 'C5'">229mm</xsl:when>
        <xsl:when test="$paper.type = 'C6'">162mm</xsl:when>
        <xsl:when test="$paper.type = 'C7'">114mm</xsl:when>
        <xsl:when test="$paper.type = 'C8'">81mm</xsl:when>
        <xsl:when test="$paper.type = 'C9'">57mm</xsl:when>
        <xsl:when test="$paper.type = 'C10'">40mm</xsl:when>
        <xsl:otherwise>11in</xsl:otherwise>
      </xsl:choose>
    </xsl:param>

#### Description

The portrait page height is the length of the long edge of the physical page.

page.margin.bottom
page.margin.bottom The bottom margin of the page

    <xsl:param name="page.margin.bottom" select="'0.5in'"></xsl:param>

#### Description

The bottom page margin is the distance from the bottom of the region-after to the physical bottom of the page.

page.margin.inner
page.margin.inner The inner page margin

    <xsl:param name="page.margin.inner">
      <xsl:choose>
        <xsl:when test="$double.sided != 0">1.25in</xsl:when>
        <xsl:otherwise>1in</xsl:otherwise>
      </xsl:choose>
    </xsl:param>

#### Description

The inner page margin is the distance from binding edge of the page to the first column of text. In the left-to-right, top-to-bottom writing direction, this is the left margin of recto pages.

The inner and outer margins are usually the same unless the output is double-sided.

page.margin.outer
page.margin.outer The outer page margin

    <xsl:param name="page.margin.outer">
      <xsl:choose>
        <xsl:when test="$double.sided != 0">0.75in</xsl:when>
        <xsl:otherwise>1in</xsl:otherwise>
      </xsl:choose>
    </xsl:param>

#### Description

The outer page margin is the distance from non-binding edge of the page to the last column of text. In the left-to-right, top-to-bottom writing direction, this is the right margin of recto pages.

The inner and outer margins are usually the same unless the output is double-sided.

page.margin.top
page.margin.top The top margin of the page

    <xsl:param name="page.margin.top" select="'0.5in'"></xsl:param>

#### Description

The top page margin is the distance from the physical top of the page to the top of the region-before.

page.orientation
page.orientation Select the page orientation

    <xsl:param name="page.orientation" select="'portrait'"></xsl:param>

#### Description

In portrait orientation, the short edge is horizontal; in landscape orientation, it is vertical.

page.width
page.width The width of the physical page

    <xsl:param name="page.width">
      <xsl:choose>
        <xsl:when test="$page.orientation = 'portrait'">
          <xsl:value-of select="$page.width.portrait"></xsl:value-of>
        </xsl:when>
        <xsl:otherwise>
          <xsl:value-of select="$page.height.portrait"></xsl:value-of>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:param>

#### Description

The page width is generally calculated from the `paper.type` and `page.orientation`.

page.width.portrait
page.width.portrait Specify the physical size of the short edge of the page

    <xsl:param name="page.width.portrait">
      <xsl:choose>
        <xsl:when test="$paper.type = 'USletter'">8.5in</xsl:when>
        <xsl:when test="$paper.type = '4A0'">1682mm</xsl:when>
        <xsl:when test="$paper.type = '2A0'">1189mm</xsl:when>
        <xsl:when test="$paper.type = 'A0'">841mm</xsl:when>
        <xsl:when test="$paper.type = 'A1'">594mm</xsl:when>
        <xsl:when test="$paper.type = 'A2'">420mm</xsl:when>
        <xsl:when test="$paper.type = 'A3'">297mm</xsl:when>
        <xsl:when test="$paper.type = 'A4'">210mm</xsl:when>
        <xsl:when test="$paper.type = 'A5'">148mm</xsl:when>
        <xsl:when test="$paper.type = 'A6'">105mm</xsl:when>
        <xsl:when test="$paper.type = 'A7'">74mm</xsl:when>
        <xsl:when test="$paper.type = 'A8'">52mm</xsl:when>
        <xsl:when test="$paper.type = 'A9'">37mm</xsl:when>
        <xsl:when test="$paper.type = 'A10'">26mm</xsl:when>
        <xsl:when test="$paper.type = 'B0'">1000mm</xsl:when>
        <xsl:when test="$paper.type = 'B1'">707mm</xsl:when>
        <xsl:when test="$paper.type = 'B2'">500mm</xsl:when>
        <xsl:when test="$paper.type = 'B3'">353mm</xsl:when>
        <xsl:when test="$paper.type = 'B4'">250mm</xsl:when>
        <xsl:when test="$paper.type = 'B5'">176mm</xsl:when>
        <xsl:when test="$paper.type = 'B6'">125mm</xsl:when>
        <xsl:when test="$paper.type = 'B7'">88mm</xsl:when>
        <xsl:when test="$paper.type = 'B8'">62mm</xsl:when>
        <xsl:when test="$paper.type = 'B9'">44mm</xsl:when>
        <xsl:when test="$paper.type = 'B10'">31mm</xsl:when>
        <xsl:when test="$paper.type = 'C0'">917mm</xsl:when>
        <xsl:when test="$paper.type = 'C1'">648mm</xsl:when>
        <xsl:when test="$paper.type = 'C2'">458mm</xsl:when>
        <xsl:when test="$paper.type = 'C3'">324mm</xsl:when>
        <xsl:when test="$paper.type = 'C4'">229mm</xsl:when>
        <xsl:when test="$paper.type = 'C5'">162mm</xsl:when>
        <xsl:when test="$paper.type = 'C6'">114mm</xsl:when>
        <xsl:when test="$paper.type = 'C7'">81mm</xsl:when>
        <xsl:when test="$paper.type = 'C8'">57mm</xsl:when>
        <xsl:when test="$paper.type = 'C9'">40mm</xsl:when>
        <xsl:when test="$paper.type = 'C10'">28mm</xsl:when>
        <xsl:otherwise>8.5in</xsl:otherwise>
      </xsl:choose>
    </xsl:param>

#### Description

The portrait page width is the length of the short edge of the physical page.

paper.type
paper.type Select the paper type

    <xsl:param name="paper.type" select="'USletter'"></xsl:param>

#### Description

The paper type is a convenient way to specify the paper size. The list of known paper sizes includes USletter and most of the A, B, and C sizes. See `page.width.portrait`, for example.

double.sided
double.sided Is the document to be printed double sided?

    <xsl:param name="double.sided" select="0"></xsl:param>

#### Description

Double-sided documents are printed with a slightly wider margin on the binding edge of the page.

FIXME: The current set of parameters does not take writing direction into account.

body.margin.bottom
body.margin.bottom The bottom margin of the body text

    <xsl:param name="body.margin.bottom" select="'0.5in'"></xsl:param>

#### Description

The body bottom margin is the distance from the last line of text in the page body to the bottom of the region-after.

body.margin.top
body.margin.top To specify the size of the top margin of a page

    <xsl:param name="body.margin.top" select="'0.5in'"></xsl:param>

#### Description

The body top margin is the distance from the top of the region-before to the first line of text in the page body.

alignment
alignment Specify the default text alignment

    <xsl:param name="alignment">justify</xsl:param>

#### Description

The default text alignment is used for most body text.

hyphenate
hyphenate Specify hyphenation behavior

    <xsl:param name="hyphenate">true</xsl:param>

#### Description

If true, words may be hyphenated. Otherwise, they may not.

line-height string
line-height Specify the line-height property

    <xsl:param name="line-height" select="'normal'"></xsl:param>

#### Description

Sets the line-height property.

column.count.back integer
column.count.back Number of columns on back matter pages

    <xsl:param name="column.count.back" select="1"></xsl:param>

#### Description

Number of columns on back matter (appendix, glossary, etc.) pages.

column.count.body integer
column.count.body Number of columns on body pages

    <xsl:param name="column.count.body" select="1"></xsl:param>

#### Description

Number of columns on body pages.

column.count.front integer
column.count.front Number of columns on front matter pages

    <xsl:param name="column.count.front" select="1"></xsl:param>

#### Description

Number of columns on front matter (dedication, preface, etc.) pages.

column.count.index integer
column.count.index Number of columns on index pages

    <xsl:param name="column.count.index" select="2"></xsl:param>

#### Description

Number of columns on index pages.

column.count.lot integer
column.count.lot Number of columns on a 'List-of-Titles' page

    <xsl:param name="column.count.lot" select="1"></xsl:param>

#### Description

Number of columns on a page sequence containing the Table of Contents, List of Figures, etc.

column.count.titlepage integer
column.count.titlepage Number of columns on a title page

    <xsl:param name="column.count.titlepage" select="1"></xsl:param>

#### Description

Number of columns on a title page

region.after.extent
region.after.extent Specifies the height of the footer.

    <xsl:param name="region.after.extent" select="'0.4in'"></xsl:param>

#### Description

The region after extent is the height of the area where footers are printed.

region.before.extent
region.before.extent Specifies the height of the header

    <xsl:param name="region.before.extent" select="'0.4in'"></xsl:param>

#### Description

The region before extent is the height of the area where headers are printed.

default.units list cm mm in pt pc px em
default.units Default units for an unqualified dimension

    <xsl:param name="default.units" select="'pt'"></xsl:param>

#### Description

If an unqualified dimension is encountered (for example, in a graphic width), the default-units will be used for the units. Unqualified dimensions are not allowed in XSL Formatting Objects.

normal.para.spacing What space do you want between normal paragraphs

    <xsl:attribute-set name="normal.para.spacing">
      <xsl:attribute name="space-before.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-before.minimum">0.8em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">1.2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

Specify the spacing required between normal paragraphs

body.font.master
body.font.master Specifies the default point size for body text

    <xsl:param name="body.font.master">10</xsl:param>

#### Description

The body font size is specified in two parameters (`body.font.master` and `body.font.size`) so that math can be performed on the font size by XSLT.

body.font.size
body.font.size Specifies the default font size for body text

    <xsl:param name="body.font.size">
     <xsl:value-of select="$body.font.master"></xsl:value-of><xsl:text>pt</xsl:text>
    </xsl:param>

#### Description

The body font size is specified in two parameters (`body.font.master` and `body.font.size`) so that math can be performed on the font size by XSLT.

footnote.font.size
footnote.font.size The font size for footnotes

    <xsl:param name="footnote.font.size">
     <xsl:value-of select="$body.font.master * 0.8"></xsl:value-of><xsl:text>pt</xsl:text>
    </xsl:param>

#### Description

The footnote font size is used for...footnotes!

title.margin.left
title.margin.left Adjust the left margin for titles

    <xsl:param name="title.margin.left" select="'-4pc'"></xsl:param>

#### Description

This parameter adjusts the left margin for titles.

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.

headers.on.blank.pages boolean
headers.on.blank.pages Put headers on blank pages?

    <xsl:param name="headers.on.blank.pages" select="1"></xsl:param>

#### Description

If non-zero, headers will be placed on blank pages.

footers.on.blank.pages boolean
footers.on.blank.pages Put footers on blank pages?

    <xsl:param name="footers.on.blank.pages" select="1"></xsl:param>

#### Description

If non-zero, footers will be placed on blank pages.

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.

header.content.properties
header.content.properties

    <xsl:attribute-set name="header.content.properties">
      <xsl:attribute name="font-family">
        <xsl:value-of select="$body.font.family"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="margin-left">
        <xsl:value-of select="$title.margin.left"></xsl:value-of>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

Properties of page header content.

footer.content.properties
footer.content.properties

    <xsl:attribute-set name="footer.content.properties">
      <xsl:attribute name="font-family">
        <xsl:value-of select="$body.font.family"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="margin-left">
        <xsl:value-of select="$title.margin.left"></xsl:value-of>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

Properties of page footer content.

## Font Families

body.font.family
body.font.family The default font family for body text

    <xsl:param name="body.font.family" select="'serif'"></xsl:param>

#### Description

The body font family is the default font used for text in the page body.

dingbat.font.family
dingbat.font.family The font family for copyright, quotes, and other symbols

    <xsl:param name="dingbat.font.family" select="'serif'"></xsl:param>

#### Description

The dingbat font family is used for dingbats. If it is defined as the empty string, no font change is effected around dingbats.

monospace.font.family
monospace.font.family The default font family for monospace environments

    <xsl:param name="monospace.font.family" select="'monospace'"></xsl:param>

#### Description

The monospace font family is used for verbatim environments (program listings, screens, etc.).

sans.font.family
sans.font.family The default sans-serif font family

    <xsl:param name="sans.font.family" select="'sans-serif'"></xsl:param>

#### Description

The default sans-serif font family. At the present, this isn't actually used by the stylesheets.

title.font.family
title.font.family The default font family for titles

    <xsl:param name="title.font.family" select="'sans-serif'"></xsl:param>

#### Description

The title font family is used for titles (chapter, section, figure, etc.)

## Lists

list.block.spacing What spacing do you want before and after lists?

    <xsl:attribute-set name="list.block.spacing">
      <xsl:attribute name="space-before.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-before.minimum">0.8em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">1.2em</xsl:attribute>
      <xsl:attribute name="space-after.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-after.minimum">0.8em</xsl:attribute>
      <xsl:attribute name="space-after.maximum">1.2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

Specify the spacing required before and after a list. It is necessary to specify the space after a list block because lists can come inside of paras.

list.item.spacing What space do you want between list items?

    <xsl:attribute-set name="list.item.spacing">
      <xsl:attribute name="space-before.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-before.minimum">0.8em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">1.2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

Specify what spacing you want between each list item.

compact.list.item.spacing What space do you want between list items (when spacing=compact)?

    <xsl:attribute-set name="compact.list.item.spacing">
      <xsl:attribute name="space-before.optimum">0em</xsl:attribute>
      <xsl:attribute name="space-before.minimum">0em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">0.2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

Specify what spacing you want between each list item when spacing is `compact`.

## Cross References

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

    <xsl:param name="insert.xref.page.number" select="0"></xsl:param>

#### Description

If non-zero, cross references (xrefs) will include page number citations.

xref.properties Properties associated with cross-reference text

    <xsl:attribute-set name="xref.properties">
    </xsl:attribute-set>

#### Description

This attribute set is used on cross reference text.

## Property Sets

formal.object.properties Properties associated with a formal object such as a figure, or other component that has a title

    <xsl:attribute-set name="formal.object.properties">
      <xsl:attribute name="space-before.minimum">0.5em</xsl:attribute>
      <xsl:attribute name="space-before.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">2em</xsl:attribute>
      <xsl:attribute name="space-after.minimum">0.5em</xsl:attribute>
      <xsl:attribute name="space-after.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-after.maximum">2em</xsl:attribute>
      <xsl:attribute name="keep-together">always</xsl:attribute>
    </xsl:attribute-set>

#### Description

The styling for formal objects in docbook. Specify the spacing before and after the object.

formal.title.properties Style the title element of formal object such as a figure.

    <xsl:attribute-set name="formal.title.properties" use-attribute-sets="normal.para.spacing">
      <xsl:attribute name="font-weight">bold</xsl:attribute>
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.master * 1.2"></xsl:value-of>
        <xsl:text>pt</xsl:text>
      </xsl:attribute>
      <xsl:attribute name="hyphenate">false</xsl:attribute>
      <xsl:attribute name="space-after.minimum">0.4em</xsl:attribute>
      <xsl:attribute name="space-after.optimum">0.6em</xsl:attribute>
      <xsl:attribute name="space-after.maximum">0.8em</xsl:attribute>
    </xsl:attribute-set>

#### Description

Specify how the title should be styled. Specify the font size and weight of the title of the formal object.

informal.object.properties Properties associated with a formal object such as a figure, or other component that has a title

    <xsl:attribute-set name="informal.object.properties">
      <xsl:attribute name="space-before.minimum">0.5em</xsl:attribute>
      <xsl:attribute name="space-before.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">2em</xsl:attribute>
      <xsl:attribute name="space-after.minimum">0.5em</xsl:attribute>
      <xsl:attribute name="space-after.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-after.maximum">2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

The styling for informal objects in docbook. Specify the spacing before and after the object.

monospace.properties attribute set
monospace.properties Properties of monospaced content

    <xsl:attribute-set name="monospace.properties">
      <xsl:attribute name="font-family">
        <xsl:value-of select="$monospace.font.family"></xsl:value-of>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

Specifies the font name for monospaced output. This property set used to set the font-size as well, but that doesn't work very well when different fonts are used (as they are in titles and paragraphs, for example).

If you want to set the font-size in a customization layer, it's probably going to be more appropriate to set font-size-adjust, if your formatter supports it.

verbatim.properties Properties associated with verbatim text

    <xsl:attribute-set name="verbatim.properties">
      <xsl:attribute name="space-before.minimum">0.8em</xsl:attribute>
      <xsl:attribute name="space-before.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">1.2em</xsl:attribute>
      <xsl:attribute name="space-after.minimum">0.8em</xsl:attribute>
      <xsl:attribute name="space-after.optimum">1em</xsl:attribute>
      <xsl:attribute name="space-after.maximum">1.2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

This attribute set is used on all verbatim environments.

monospace.verbatim.properties What font and size do you want for monospaced content?

    <xsl:attribute-set name="monospace.verbatim.properties" use-attribute-sets="verbatim.properties monospace.properties">
      <xsl:attribute name="text-align">start</xsl:attribute>
    </xsl:attribute-set>

#### Description

Specify the font name and size you want for monospaced output

sidebar.properties attribute set
sidebar.properties Attribute set for sidebar properties

    <xsl:attribute-set name="sidebar.properties" use-attribute-sets="formal.object.properties">
      <xsl:attribute name="border-style">solid</xsl:attribute>
      <xsl:attribute name="border-width">1pt</xsl:attribute>
      <xsl:attribute name="border-color">black</xsl:attribute>
      <xsl:attribute name="background-color">#DDDDDD</xsl:attribute>
      <xsl:attribute name="padding-left">12pt</xsl:attribute>
      <xsl:attribute name="padding-right">12pt</xsl:attribute>
      <xsl:attribute name="padding-top">6pt</xsl:attribute>
      <xsl:attribute name="padding-bottom">6pt</xsl:attribute>
    <!--
      <xsl:attribute name="margin-left">12pt</xsl:attribute>
      <xsl:attribute name="margin-right">12pt</xsl:attribute>
      <xsl:attribute name="margin-top">6pt</xsl:attribute>
      <xsl:attribute name="margin-bottom">6pt</xsl:attribute>
    -->
    </xsl:attribute-set>

#### Description

The styling for sidebars.

section.title.properties attribute set
section.title.properties Properties for section titles

    <xsl:attribute-set name="section.title.properties">
      <xsl:attribute name="font-family">
        <xsl:value-of select="$title.font.family"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="font-weight">bold</xsl:attribute>
      <!-- font size is calculated dynamically by section.heading template -->
      <xsl:attribute name="keep-with-next.within-column">always</xsl:attribute>
      <xsl:attribute name="space-before.minimum">0.8em</xsl:attribute>
      <xsl:attribute name="space-before.optimum">1.0em</xsl:attribute>
      <xsl:attribute name="space-before.maximum">1.2em</xsl:attribute>
    </xsl:attribute-set>

#### Description

The properties common to all section titles.

section.title.level1.properties attribute set
section.title.level1.properties Properties for level-1 section titles

    <xsl:attribute-set name="section.title.level1.properties">
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.master * 2.0736"></xsl:value-of>
        <xsl:text>pt</xsl:text>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

The properties of level-1 section titles.

section.title.level2.properties attribute set
section.title.level2.properties Properties for level-1 section titles

    <xsl:attribute-set name="section.title.level2.properties">
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.master * 1.728"></xsl:value-of>
        <xsl:text>pt</xsl:text>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

The properties of level-2 section titles.

section.title.level3.properties attribute set
section.title.level3.properties Properties for level-1 section titles

    <xsl:attribute-set name="section.title.level3.properties">
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.master * 1.44"></xsl:value-of>
        <xsl:text>pt</xsl:text>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

The properties of level-3 section titles.

section.title.level4.properties attribute set
section.title.level4.properties Properties for level-1 section titles

    <xsl:attribute-set name="section.title.level4.properties">
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.master * 1.2"></xsl:value-of>
        <xsl:text>pt</xsl:text>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

The properties of level-4 section titles.

section.title.level5.properties attribute set
section.title.level5.properties Properties for level-1 section titles

    <xsl:attribute-set name="section.title.level5.properties">
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.master"></xsl:value-of>
        <xsl:text>pt</xsl:text>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

The properties of level-5 section titles.

section.title.level6.properties attribute set
section.title.level6.properties Properties for level-1 section titles

    <xsl:attribute-set name="section.title.level6.properties">
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.master"></xsl:value-of>
        <xsl:text>pt</xsl:text>
      </xsl:attribute>
    </xsl:attribute-set>

#### Description

The properties of level-6 section titles. This property set is actually used for all titles below level 5.

figure.properties Properties associated with a figure

    <xsl:attribute-set name="figure.properties" use-attribute-sets="formal.object.properties"></xsl:attribute-set>

#### Description

The styling for figures.

example.properties Properties associated with a example

    <xsl:attribute-set name="example.properties" use-attribute-sets="formal.object.properties"></xsl:attribute-set>

#### Description

The styling for examples.

equation.properties Properties associated with a equation

    <xsl:attribute-set name="equation.properties" use-attribute-sets="formal.object.properties"></xsl:attribute-set>

#### Description

The styling for equations.

table.properties Properties associated with a table

    <xsl:attribute-set name="table.properties" use-attribute-sets="formal.object.properties"></xsl:attribute-set>

#### Description

The styling for tables.

procedure.properties Properties associated with a procedure

    <xsl:attribute-set name="procedure.properties" use-attribute-sets="formal.object.properties"></xsl:attribute-set>

#### Description

The styling for procedures.

root.properties attribute set
root.properties The properties of the fo:root element

    <xsl:attribute-set name="root.properties">
      <xsl:attribute name="font-family">
        <xsl:value-of select="$body.font.family"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="font-size">
        <xsl:value-of select="$body.font.size"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="text-align">
        <xsl:value-of select="$alignment"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="line-height">
        <xsl:value-of select="$line-height"></xsl:value-of>
      </xsl:attribute>
      <xsl:attribute name="font-selection-strategy">character-by-character</xsl:attribute>
    </xsl:attribute-set>

#### Description

This property set is used on the fo:root element of an FO file. It defines a set of default, global parameters.

## 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.

## 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.

## EBNF

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

    <xsl:param name="ebnf.assignment">
      <fo:inline font-family="{$monospace.font.family}">
        <xsl:text>::=</xsl:text>
      </fo:inline>
    </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.

## The Stylesheet

The `param.xsl` stylesheet is just a wrapper around all these parameters.

    <xsl:stylesheet exclude-result-prefixes="src" version="1.0">

    <!-- This file is generated from param.xweb; do not edit this file! -->

    <!-- ********************************************************************
         $Id: param.xweb,v 1.56 2003/05/15 17:30:35 kosek Exp $
         ********************************************************************

         This file is part of the XSL DocBook Stylesheet distribution.
         See ../README or http://nwalsh.com/docbook/xsl/ for copyright
         and other information.

         ******************************************************************** -->

    <src:fragref linkend="admon.graphics.extension.frag"></src:fragref>
    <src:fragref linkend="admon.graphics.frag"></src:fragref>
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    <src:fragref linkend="admon.textlabel.frag"></src:fragref>
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    <src:fragref linkend="firstterm.only.link.frag"></src:fragref>
    <src:fragref linkend="footer.content.properties.frag"></src:fragref>
    <src:fragref linkend="footer.rule.frag"></src:fragref>
    <src:fragref linkend="footers.on.blank.pages.frag"></src:fragref>
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