+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLInnerAttr
+\end_layout
+
+\end_inset
+
+ [
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+string
+\end_layout
+
+\end_inset
+
+] Attributes for the inner tag.
+ Defaults to
+\begin_inset Quotes eld
+\end_inset
+
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+class=`insetname_inner'
+\end_layout
+
+\end_inset
+
+
+\begin_inset Quotes erd
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLInnerTag
+\end_layout
+
+\end_inset
+
+ [
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+string
+\end_layout
+
+\end_inset
+
+] The inner tag, replacing
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+innertag
+\end_layout
+
+\end_inset
+
+ in the examples above.
+ By default, there is none.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLIsBlock
+\end_layout
+
+\end_inset
+
+ [
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+0,
+\emph on
+1
+\end_layout
+
+\end_inset
+
+] Whether this inset represents a standalone block of text (such as a footnote)
+ or instead represents material that is included in the surrounding text
+ (such as a branch).
+ Defaults to 1.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLLabel
+\end_layout
+
+\end_inset
+
+ [
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+string
+\end_layout
+
+\end_inset
+
+] A label for this inset, possibly including a reference to a counter.
+ For example, for footnote, it might be:
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+
+\backslash
+arabic{footnote}
+\end_layout
+
+\end_inset
+
+.
+ This is optional, and there is no default.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLPreamble
+\end_layout
+
+\end_inset
+
+ Information to be output in the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+<head>
+\end_layout
+
+\end_inset
+
+ section when this style is used.
+ This might, for example, be used to include a
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+<script>
+\end_layout
+
+\end_inset
+
+ block defining an
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+onclick
+\end_layout
+
+\end_inset
+
+ handler.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLStyle
+\end_layout
+
+\end_inset
+
+ CSS style information to be included when this style is used.
+ Note that this will automatically be wrapped in a layout-generated
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+<style>
+\end_layout
+
+\end_inset
+
+ block, so only the CSS itself need be included.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLTag
+\end_layout
+
+\end_inset
+
+ [
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+string
+\end_layout
+
+\end_inset
+
+] The tag to be used for the main label, replacing
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+tag
+\end_layout
+
+\end_inset
+
+ in the examples above.
+ The default depends upon the setting of
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+MultiPar
+\end_layout
+
+\end_inset
+
+: If
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+MultiPar
+\end_layout
+
+\end_inset
+
+ is true, the default is
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+div
+\end_layout
+
+\end_inset
+
+; if it is false, the default is
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+span
+\end_layout
+
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Subsection
+Float XHTML
+\end_layout
+
+\begin_layout Standard
+The XHTML output for floats too can be controlled by layout information.
+ The output has the following form:
+\end_layout
+
+\begin_layout LyX-Code
+<tag attr=
+\begin_inset Quotes erd
+\end_inset
+
+value
+\begin_inset Quotes erd
+\end_inset
+
+>
+\end_layout
+
+\begin_layout LyX-Code
+Contents of the float.
+\end_layout
+
+\begin_layout LyX-Code
+</tag>
+\end_layout
+
+\begin_layout Standard
+The caption, if there is one, is a separate inset and will be output as
+ such.
+ Its appearance can be controlled via the InsetLayout for caption insets.
+
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLAttr
+\end_layout
+
+\end_inset
+
+ [
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+string
+\end_layout
+
+\end_inset
+
+] Specifies attribute information to be output with the main tag.
+ For example,
+\begin_inset Quotes eld
+\end_inset
+
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+class=`myfloat' onclick=`\SpecialChar \ldots{}
+'
+\end_layout
+
+\end_inset
+
+
+\begin_inset Quotes erd
+\end_inset
+
+.
+ By default, LyX will output
+\begin_inset Quotes eld
+\end_inset
+
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+class=`float float-floattype'
+\end_layout
+
+\end_inset
+
+
+\begin_inset Quotes erd
+\end_inset
+
+, where
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+floattype
+\end_layout
+
+\end_inset
+
+ is LyX's name for this type of float, as determined by the float declaration
+ (see
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "sub:Floats"
+
+\end_inset
+
+), though made lowercase and with non-alphanumeric characters converted
+ to underscores, for example: float-table.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLStyle
+\end_layout
+
+\end_inset
+
+ CSS style information to be included when this float is used.
+ Note that this will automatically be wrapped in a layout-generated
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+<style>
+\end_layout
+
+\end_inset
+
+ block, so only the CSS itself need be included.
+\end_layout
+
+\begin_layout Description
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+HTMLTag
+\end_layout
+
+\end_inset
+
+ [
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+string
+\end_layout
+
+\end_inset
+
+] The tag to be used for this float, replacing
+\begin_inset Quotes eld
+\end_inset
+
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+tag
+\end_layout
+
+\end_inset
+
+
+\begin_inset Quotes erd
+\end_inset
+
+ in the example above.
+ The default is
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+div
+\end_layout
+
+\end_inset
+
+ and will rarely need changing.
+\end_layout
+
+\begin_layout Subsection
+Bibliography formatting
+\end_layout
+
+\begin_layout Standard
+The bibliography can be formatted using
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+CiteFormat
+\end_layout
+
+\end_inset
+
+ blocks.
+ See
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "sub:Citation-format-description"
+
+\end_inset
+
+ for the details.
+\end_layout
+
+\begin_layout Subsection
+LyX-generated CSS
+\end_layout
+
+\begin_layout Standard
+We have several times mentioned that LyX will generate default CSS style
+ rules for both insets and paragraph styles, based upon the other layout
+ information that is provided.
+ In this section, we shall say a word about which layout information LyX
+ uses and how.
+\end_layout
+
+\begin_layout Standard
+At present, LyX auto-generates CSS only for font information, making use
+ of the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+Family
+\end_layout
+
+\end_inset
+
+,
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+Series
+\end_layout
+
+\end_inset
+
+,
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+Shape
+\end_layout
+
+\end_inset
+
+, and
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+Size
+\end_layout
+
+\end_inset
+
+ specified in the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+Font
+\end_layout
+
+\end_inset
+
+ declaration (see
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "sub:Font-description"
+
+\end_inset
+
+).
+ The translation is mostly straightforward and obvious.
+ For example,
+\begin_inset Quotes eld
+\end_inset
+
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+Family Sans
+\end_layout
+
+\end_inset
+
+
+\begin_inset Quotes erd
+\end_inset
+
+ becomes
+\begin_inset Quotes eld
+\end_inset
+
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+font-family: sans-serif;
+\end_layout
+
+\end_inset
+
+
+\begin_inset Quotes erd
+\end_inset
+
+.
+ The correspondence of LyX sizes and CSS sizes is a little less obvious
+ but nonetheless intuitive.
+ See the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+getSizeCSS()
+\end_layout
+
+\end_inset
+
+ function in
+\begin_inset Flex URL
+status collapsed
+
+\begin_layout Plain Layout
+
+src/FontInfo.cpp
+\end_layout
+
+\end_inset
+
+ for the details.
+\end_layout
+
+\begin_layout Chapter
+Including External Material
+\begin_inset CommandInset label
+LatexCommand label
+name "chap:Including-External-Material"
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Box Shadowbox
+position "t"
+hor_pos "c"
+has_inner_box 1
+inner_pos "t"
+use_parbox 0
+use_makebox 0
+width "100col%"
+special "none"
+height "1in"
+height_special "totalheight"
+status open
+
+\begin_layout Plain Layout
+WARNING: This portion of the documentation has not been updated for some
+ time.
+ We certainly hope that it is still accurate, but there are no guarantees.
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+The use of material from sources external to LyX is covered in detail in
+ the
+\emph on
+Embedded Objects
+\emph default
+ manual.
+ This part of the manual covers what needs to happen behind the scenes for
+ new sorts of material to be included.
+\end_layout
+
+\begin_layout Section
+How does it work?
+\end_layout
+
+\begin_layout Standard
+The external material feature is based on the concept of a
+\emph on
+template
+\emph default
+.
+ A template is a specification of how LyX should interface with a certain
+ kind of material.
+ As bundled, LyX comes with predefined templates for Xfig figures, various
+ raster format images, chess diagrams, and LilyPond music notation.
+ You can check the actual list by using the menu
+\begin_inset Flex MenuItem
+status collapsed
+
+\begin_layout Plain Layout
+Insert\SpecialChar \menuseparator
+File\SpecialChar \menuseparator
+External Material
+\end_layout
+
+\end_inset
+
+.
+ Furthermore, it is possible to roll your own template to support a specific
+ kind of material.
+ Later we'll describe in more detail what is involved, and hopefully you
+ will submit all the templates you create so we can include them in a later
+ LyX version.
+\end_layout
+
+\begin_layout Standard
+Another basic idea of the external material feature is to distinguish between
+ the original file that serves as a base for final material and the produced
+ file that is included in your exported or printed document.
+ For example, consider the case of a figure produced with
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+Xfig
+\end_layout
+
+\end_inset
+
+.
+ The Xfig application itself works on an original file with the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+.fig
+\end_layout
+
+\end_inset
+
+ extension.
+ Within Xfig, you create and change your figure, and when you are done,
+ you save the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+fig
+\end_layout
+
+\end_inset
+
+-file.
+ When you want to include the figure in your document, you invoke
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+transfig
+\end_layout
+
+\end_inset
+
+ in order to create a PostScript file that can readily be included in your
+ LaTeX file.
+ In this case, the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+.fig
+\end_layout
+
+\end_inset
+
+ file is the original file, and the PostScript file is the produced file.
+\end_layout
+
+\begin_layout Standard
+This distinction is important in order to allow updating of the material
+ while you are in the process of writing the document.
+ Furthermore, it provides us with the flexibility that is needed to support
+ multiple export formats.
+ For instance, in the case of a plain text file, it is not exactly an award-winn
+ing idea to include the figure as raw PostScript.
+ Instead, you would either prefer to just include a reference to the figure
+ or try to invoke some graphics to ASCII converter to make the final result
+ look similar to the real graphics.
+ The external material management allows you to do this, because it is parametri
+zed on the different export formats that LyX supports.
+\end_layout
+
+\begin_layout Standard
+Besides supporting the production of different products according to the
+ exported format, it supports tight integration with editing and viewing
+ applications.
+ In the case of an Xfig figure, you are able to invoke Xfig on the original
+ file with a single click from within the external material dialog in LyX,
+ and also preview the produced PostScript file with Ghostview with another
+ click.
+ No more fiddling around with the command line and/or file browsers to locate
+ and manipulate the original or produced files.
+ In this way, you are finally able to take full advantage of the many different
+ applications that are relevant to use when you write your documents, and
+ ultimately be more productive.
+\end_layout
+
+\begin_layout Section
+The external template configuration file
+\end_layout
+
+\begin_layout Standard
+It is relatively easy to add custom external template definitions to LyX.
+ However, be aware that doing this in an careless manner most probably
+\emph on
+will
+\emph default
+ introduce an easily exploitable security hole.
+ So before you do this, please read the discussion about security in
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "sec:Security-discussion"
+
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Standard
+Having said that, we encourage you to submit any interesting templates that
+ you create.
+
+\end_layout
+
+\begin_layout Standard
+The external templates are defined in the
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+LyXDir/lib/external_templates
+\end_layout
+
+\end_inset
+
+ file.
+ You can place your own version in
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+UserDir/external_templates
+\end_layout
+
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Standard