<?xml version="1.0" encoding="ISO-8859-1"?>
<section version="5.0" xml:id="noteworthy_elements"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:m="http://www.w3.org/1998/Math/MathML"
xmlns:htm="http://www.w3.org/1999/xhtml"
xmlns:db="http://docbook.org/ns/docbook">
<title>Noteworthy elements</title>
<para>In DocBook 5 (see <link
xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The Definitive
Guide</link>), two elements with the <emphasis>same name</emphasis> having
the <emphasis>same parent</emphasis> element may have <emphasis>different
content models</emphasis>. This is the case for <tag
class="element">indexterm</tag> and <tag
class="element">imagedata</tag>.</para>
<para>Other elements are less exotic because their content models are
contextual, that is, they depend on their parent elements.</para>
<para>Example 1: this paragraph contains the <emphasis>usual, full-fledged,
emphasis child element</emphasis> (called
"<literal>emphasis (db.emphasis)</literal>" in <link
xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The Definitive
Guide</link>).</para>
<para><inlinemediaobject>
<imageobject>
<imagedata fileref="images/action.png"></imagedata>
</imageobject>
</inlinemediaobject> Please click inside word
"<emphasis>emphasis</emphasis>" in the above example and use <menuchoice>
<guimenu>Help</guimenu>
<guimenuitem>Show Content Model</guimenuitem>
</menuchoice> (<keycombo>
<keycap>Shift</keycap>
<keycap>F1</keycap>
</keycombo>) to display the content model of the full-fledged <tag
class="element">emphasis</tag> element.</para>
<para>Example 2: <inlineequation>
<mathphrase>this inlineequation contains a mathphrase which contains
<emphasis>a limited emphasis child element</emphasis></mathphrase>
</inlineequation> (called "<literal>emphasis (db._emphasis)</literal>" in
<link xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The Definitive
Guide</link>).</para>
<para><inlinemediaobject>
<imageobject>
<imagedata fileref="images/action.png"></imagedata>
</imageobject>
</inlinemediaobject> Please click inside word
"<emphasis>emphasis</emphasis>" in the above example and use <menuchoice>
<guimenu>Help</guimenu>
<guimenuitem>Show Content Model</guimenuitem>
</menuchoice> (<keycombo>
<keycap>Shift</keycap>
<keycap>F1</keycap>
</keycombo>) to display the content model of the limited <tag
class="element">emphasis</tag> element.</para>
<section>
<title>Element <tag class="element">indexterm</tag></title>
<para>DocBook 5 has three kinds of <tag class="element">indexterm</tag>
elements:</para>
<variablelist>
<varlistentry>
<term>indexterm(singular)</term>
<listitem>
<para>(Called "<literal>indexterm (db.indexterm.singular)</literal>"
in <link xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The
Definitive Guide</link>.) A wrapper for an indexed term.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>indexterm(startofrange)</term>
<listitem>
<para>(Called
"<literal>indexterm (db.indexterm.startofrange)</literal>" in <link
xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The
Definitive Guide</link>.) A wrapper for an indexed term that covers
a range.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>indexterm(endofrange)</term>
<listitem>
<para>(Called
"<literal>indexterm (db.indexterm.endofrange)</literal>" in <link
xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The
Definitive Guide</link>.) Identifies the end of a range associated
with an indexed term.</para>
</listitem>
</varlistentry>
</variablelist>
<para>Example 1 (<literal>indexterm(singular)</literal>): The Tiger
<indexterm>
<primary>Big Cats</primary>
<secondary>Tigers</secondary>
</indexterm> is a very large cat indeed.</para>
<para><inlinemediaobject>
<imageobject>
<imagedata fileref="images/action.png"></imagedata>
</imageobject>
</inlinemediaobject> Please click on the above <tag
class="element">indexterm</tag> element, use <menuchoice>
<guimenu>Edit</guimenu>
<guimenuitem>Replace</guimenuitem>
</menuchoice> (<keycombo>
<keycap>Ctrl</keycap>
<keycap>R</keycap>
</keycombo>), then type "<literal>in</literal>" (autocompletion) to see
what is suggested in the element list of the <guilabel>Edit</guilabel>
tool.</para>
<para>Example 2 (<literal>indexterm(singular)</literal>): <indexterm
zone="a1">
<primary>Network Configuration</primary>
</indexterm></para>
<blockquote xml:id="a1">
<formalpara>
<title>Configuring Your Network</title>
<para>Everything you need to know about configuring your
network.</para>
</formalpara>
</blockquote>
<para>Example 3
(<literal>indexterm(startofrange)</literal>/<literal>indexterm(endofrange)</literal>
pair): <indexterm class="startofrange" xml:id="idxexformalpara">
<primary>Example formalpara</primary>
</indexterm></para>
<blockquote>
<formalpara>
<title>Example formalpara</title>
<para>Some content. <indexterm class="endofrange"
startref="idxexformalpara" /></para>
</formalpara>
</blockquote>
<para><inlinemediaobject>
<imageobject>
<imagedata fileref="images/action.png"></imagedata>
</imageobject>
</inlinemediaobject> Please click on any of the above <tag
class="element">indexterm</tag> elements and then use <menuchoice>
<guimenu>Help</guimenu>
<guimenuitem>Show Content Model</guimenuitem>
</menuchoice> (<keycombo>
<keycap>Shift</keycap>
<keycap>F1</keycap>
</keycombo>) to display their content models.</para>
</section>
<section>
<title>Element <tag class="element">imagedata</tag></title>
<para>DocBook 5 has three kinds of <tag class="element">imagedata</tag>
elements:</para>
<variablelist>
<varlistentry>
<term>imagedata(fileref)</term>
<listitem>
<para>(Called "<literal>imagedata (db.imagedata)</literal>" in <link
xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The
Definitive Guide</link>.) Pointer to external image data.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>imagedata(svg)</term>
<listitem>
<para>(Called "<literal>imagedata (db.imagedata.svg)</literal>" in
<link xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The
Definitive Guide</link>.) An SVG drawing in a media object.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>imagedata(mathml)</term>
<listitem>
<para>(Called "<literal>imagedata (db.imagedata.mathml)</literal>"
in <link xlink:href="http://www.docbook.org/tdg5/">DocBook 5.0: The
Definitive Guide</link>.) A MathML expression in a media
object.</para>
</listitem>
</varlistentry>
</variablelist>
<para>Examples:</para>
<figure>
<title>``Normal'' <tag class="element">imagedata</tag> (this <tag
class="element">imagedata</tag> element has no attributes other than
<tag class="attribute">fileref</tag>)</title>
<mediaobject>
<imageobject>
<imagedata fileref="images/fish4.png" format="PNG"></imagedata>
</imageobject>
</mediaobject>
<para><inlinemediaobject>
<imageobject>
<imagedata fileref="images/action.png"></imagedata>
</imageobject>
</inlinemediaobject> Please click on the above image and use
<menuchoice>
<guimenu>Edit</guimenu>
<guimenuitem>Replace</guimenuitem>
</menuchoice> (<keycombo>
<keycap>Ctrl</keycap>
<keycap>R</keycap>
</keycombo>) to see what is suggested in the element list of the
<guilabel>Edit</guilabel> tool.</para>
</figure>
<figure>
<title>SVG <tag class="element">imagedata</tag> (the attributes of this
<tag class="element">imagedata</tag> element are: <tag
class="attribute">align</tag>=<tag class="attvalue">right</tag>, <tag
class="attribute">depth</tag>=<tag class="attvalue">10cm</tag>, <tag
class="attribute">scale</tag>=<tag class="attvalue">25</tag>, <tag
class="attribute">valign</tag>=<tag class="attvalue">top</tag>, <tag
class="attribute">width</tag>=<tag class="attvalue">10cm</tag>).
Requires installing the Batik image toolkit plug-in<footnote>
<para>Please use <menuchoice>
<guimenu>Options</guimenu>
<guimenuitem>Install Add-ons</guimenuitem>
</menuchoice> to download and install the add-on called "Apache
Batik image toolkit plug-in".</para>
</footnote>.</title>
<mediaobject>
<imageobject>
<imagedata align="right" depth="10cm" format="svg" scale="25"
valign="top" width="10cm">
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d="M 72.008 569.512 C 38.312 627.256 38.096 662.68 62.504 681.328 C 63.728 682.264 64.448 680.032 63.296 679.168 C 36.296 655.48 48.896 615.52 74.168 570.88 C 74.888 569.584 72.512 568.432 72.008 569.512 z "
id="path63"></svg:path> </svg:g> <svg:g id="g64"
style="fill:#c1c1bf;"> <svg:path
d="M 289.376 586.864 C 289.232 589.168 288.368 589.528 286.424 587.368 C 279.8 575.848 235.088 551.44 213.344 548.704 C 209.24 547.264 209.456 545.392 213.488 544.816 C 229.184 544.816 241.28 537.904 254.96 537.904 C 258.704 538.048 262.304 539.488 264.392 541.648 C 269.504 544.96 288.08 570.592 289.376 586.864 z "
id="path65"></svg:path> </svg:g> <svg:g id="g66"
style="fill:#c1c1bf;"> <svg:path
d="M 180.152 546.832 C 180.872 550.792 163.808 545.68 164.744 556.696 C 165.032 559.72 160.496 561.376 160.64 556.696 C 160.64 548.272 161.072 548.416 152.72 546.832 C 151.208 546.76 151.352 544.528 152.72 544.816 L 152.72 544.816 C 158.696 546.472 166.76 542.872 166.4 538.84 C 166.256 537.472 168.56 537.688 168.488 538.84 C 167.984 545.248 181.664 542.152 180.152 546.832 z "
id="path67"></svg:path> </svg:g> <svg:g id="g68"
style="fill:#c1c1bf;"> <svg:path
d="M 151.568 705.376 C 151.64 708.328 148.76 707.68 148.544 705.592 C 140.192 680.536 143.72 618.832 151.856 598.96 C 152.432 596.08 156.248 596.944 155.744 598.96 C 147.104 635.464 147.248 673.048 151.568 705.376 z "
id="path69"></svg:path> </svg:g> <svg:g id="g70"
style="fill:#b77200;"> <svg:path
d="M 51.704 684.424 C 75.68 707.824 91.376 743.248 114.632 775.288 C 148.472 816.04 121.472 858.304 66.464 845.56 C 38.888 835.192 -0.784 836.344 -32.68 825.832 C -55.072 820.36 -55.864 809.272 -44.416 787.6 C -40.384 773.776 -40.024 751.312 -43.768 732.592 C -45.784 718.408 -39.232 710.488 -24.112 708.832 L -24.112 708.832 C -11.296 708.688 6.56 713.872 16.28 686.44 C 23.552 673.336 40.976 672.976 51.704 684.424 z "
id="path71"></svg:path> </svg:g> <svg:g id="g72"
style="fill:#f2b700;"> <svg:path
d="M 24.632 699.04 C 23.84 680.968 39.32 677.296 49.688 688.312 C 68.192 710.992 85.112 736.048 100.376 764.992 C 124.712 804.16 104.624 842.68 67.904 828.064 C 49.688 817.84 6.128 813.304 -17.344 809.128 C -33.04 807.832 -35.128 797.608 -29.152 791.848 C -20.944 782.416 -20.08 759.808 -27.856 740.512 C -35.56 728.56 -21.088 715.384 -9.712 720.856 C 0.8 727.048 25.64 713.08 24.632 699.04 z "
id="path73"></svg:path> </svg:g> </svg:g> </svg:g></svg:svg>
</imagedata>
</imageobject>
</mediaobject>
</figure>
<figure>
<title>MathML <tag class="element">imagedata</tag>. Requires installing
the JEuclid image toolkit plug-in and/or the MathML add-on<footnote>
<para>Please use <menuchoice>
<guimenu>Options</guimenu>
<guimenuitem>Install Add-ons</guimenuitem>
</menuchoice> to download and install the add-on called "JEuclid
image toolkit plug-in" and/or the add-on called "MathML
support".</para>
</footnote>.</title>
<mediaobject>
<imageobject>
<imagedata>
<m:math display="block">
<m:mi>x</m:mi>
<m:mo>=</m:mo>
<m:mfrac>
<m:mrow>
<m:mrow>
<m:mo>-</m:mo>
<m:mi>b</m:mi>
</m:mrow>
<m:mo>±</m:mo>
<m:msqrt>
<m:msup>
<m:mi>b</m:mi>
<m:mn>2</m:mn>
</m:msup>
<m:mo>-</m:mo>
<m:mrow>
<m:mn>4</m:mn>
<m:mo>⁢</m:mo>
<m:mi>a</m:mi>
<m:mo>⁢</m:mo>
<m:mi>c</m:mi>
</m:mrow>
</m:msqrt>
</m:mrow>
<m:mrow>
<m:mn>2</m:mn>
<m:mo>⁢</m:mo>
<m:mi>a</m:mi>
</m:mrow>
</m:mfrac>
</m:math>
</imagedata>
</imageobject>
</mediaobject>
</figure>
<para>Examples of inline images: ``normal'' <tag
class="element">inlinemediaobject</tag> <inlinemediaobject>
<imageobject>
<imagedata fileref="images/fish4.png" format="PNG" scale="50"></imagedata>
</imageobject>
</inlinemediaobject> (the attributes of the <tag
class="element">imagedata</tag> child element of this <tag
class="element">inlinemediaobject</tag> are: <tag
class="attribute">scale</tag>=<tag class="attvalue">50</tag>), SVG <tag
class="element">inlinemediaobject</tag> <inlinemediaobject>
<imageobject>
<imagedata format="svg" scale="10">
<svg:svg height="744.094" id="svg75" version="1.0" width="744.094"
x="0" y="0"><svg:defs id="defs77"></svg:defs> <svg:g id="g3"
style="font-size:12;"
transform="matrix(1.03441,0,0,1.03441,58.7841,-56.0537)">
<svg:path
d="M 344.427 534.692 L 396.057 616.976 L 463.014 650.858 L 564.66 617.783 L 625.97 522.591 L 619.517 433.852 L 569.5 322.526 L 546.106 278.157 L 421.065 279.77 L 414.611 317.686 L 371.049 391.096 L 342.007 470.961 L 344.427 534.692 z "
id="path4" style="fill:#ffffff;"
transform="translate(-188.771,11.294)"></svg:path> <svg:g id="g5"
transform="translate(107.656,-154.861)"> <svg:g id="g6"
style="fill:#c1c1bf;"> <svg:path
d="M 329.336 727.552 C 315.224 726.328 304.136 715.816 303.128 694.936 C 306.368 639.496 309.608 582.112 271.232 545.104 C 265.256 499.024 244.016 482.104 234.008 452.512 L 218.24 441.208 L 237.104 411.688 L 245.168 411.904 L 323.936 571.168 L 340.424 651.448 L 329.336 727.552 z "
id="path7"></svg:path> </svg:g> <svg:g id="g8"
style="fill:#c1c1bf;"> <svg:path
d="M 136.232 439.696 C 133.856 455.248 132.56 470.512 134.792 485.272 C 118.376 507.592 105.92 530.128 104.48 553.312 C 92.024 586.504 62.432 614.584 67.544 680.104 C 84.176 697.456 107.432 713.584 127.376 730.36 C 152.432 751.312 137.528 778.96 102.248 772.408 C 94.4 763.768 76.616 709.624 42.92 676.288 L 49.544 632.584 L 81.368 547.408 L 120.968 484.048 L 125.36 456.688 L 119.816 386.776 L 124.424 361.216 L 136.232 439.696 L 136.232 439.696 z "
id="path9"></svg:path> </svg:g> <svg:g id="g10"
style="fill:#c1c1bf;"> <svg:path
d="M 115.64 341.416 C 116.576 336.376 117.8 331.624 119.312 327.16 L 121.688 342.784 L 115.64 341.416 z "
id="path11"></svg:path> </svg:g> <svg:g id="g12"
style="fill:#c1c1bf;"> <svg:path
d="M 120.968 500.464 C 108.368 523.792 103.976 546.256 132.92 550.216 C 117.008 553.888 97.208 568.648 77.192 593.488 L 77.624 543.016 L 101.456 503.272 L 120.968 500.464 z "
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style="fill:#c1c1bf;"> <svg:path
d="M -33.256 818.488 C 10.52 838.144 41.408 837.064 69.272 850.96 C 91.304 862.552 113.552 861.184 126.944 847.144 C 138.32 832.456 146.744 831.736 163.52 830.224 C 190.952 828.568 217.736 828.28 241.928 830.8 L 269.576 833.032 C 269.072 864.064 328.04 867.88 345.392 844.336 C 366.344 819.424 395.144 808.264 419.84 790.192 L 289.304 725.536 C 255.824 806.464 131.048 827.632 113.768 763.264 L -33.256 818.488 z "
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style="fill:#c1c1bf;"> <svg:path
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id="path17"></svg:path> </svg:g> <svg:g id="g18"> <svg:path
d="M -37.36 821.224 C 7.136 840.88 38.6 839.728 66.968 853.696 C 89.36 865.216 111.968 863.92 125.648 849.808 C 137.24 835.192 145.808 834.472 162.872 832.96 C 190.736 831.232 218.024 831.016 242.648 833.464 L 270.728 835.768 C 270.224 866.8 330.272 870.544 347.912 847 C 369.224 822.088 398.528 811 423.656 792.856 L 290.816 728.272 C 256.76 809.128 129.824 830.296 112.256 766 L -37.36 821.224 z "
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style="fill:#c1c1bf;"> <svg:path
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style="fill:#c1c1bf;"> <svg:path
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style="fill:#ffffff;"> <svg:path
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id="path31"></svg:path> </svg:g> <svg:g id="g32"> <svg:path
d="M 141.848 382.672 C 148.544 382.096 154.736 389.728 155.6 399.664 C 156.464 409.6 151.64 418.24 144.944 418.816 C 138.248 419.392 132.056 411.76 131.192 401.752 C 130.328 391.816 135.152 383.248 141.848 382.672 z "
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style="fill:#c1c1bf;"> <svg:path
d="M 227.096 392.392 C 228.104 394.048 226.448 395.776 225.224 394.12 C 223.784 392.104 221.408 389.944 218.888 388.432 C 217.232 387.568 217.808 385.624 219.68 386.2 C 222.92 387.28 225.368 389.368 227.096 392.392 z "
id="path43"></svg:path> </svg:g> <svg:g id="g44"
style="fill:#b77200;"> <svg:path
d="M 164.96 404.488 C 172.376 402.328 184.112 403.048 192.248 404.632 C 200.384 406.792 222.056 418.24 245.024 430.696 C 247.976 432.208 248.84 437.104 245.024 438.688 C 239.12 439.12 249.272 453.664 238.904 458.848 C 223.352 462.88 198.44 485.992 186.128 487.864 C 179.288 489.376 172.232 489.592 164.6 487.864 C 140.552 482.968 134.216 455.608 122.912 450.064 C 119.816 446.824 121.4 441.208 122.408 440.056 C 123.632 434.224 149.696 406.216 164.96 404.488 z "
id="path45"></svg:path> </svg:g> <svg:g id="g46"
style="fill:#f2b700;"> <svg:path
d="M 185.408 405.856 C 198.44 407.296 226.088 423.928 239.408 430.624 C 242.72 432.424 242.504 437.824 239.552 438.688 C 236.384 440.488 235.448 438.256 232.928 437.896 C 228.896 435.736 222.272 440.92 217.016 444.88 C 186.704 467.776 180.656 465.256 156.176 462.664 C 147.68 460.576 142.136 457.984 139.688 455.968 C 141.488 445.888 160.496 407.656 166.76 406.792 C 168.344 404.704 179.936 404.632 185.408 405.856 z "
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