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<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" style="xslt-template" id="db2html.entry">
<info>
<link type="guide" xref="db2html-table" group="templates"/>
<link type="guide" xref="templates" group="db2html"/>
<desc>Creates a <sys>td</sys> element for an <sys>entry</sys> element</desc>
</info>
<title>db2html.entry</title>
<synopsis>
<title>Parameters</title>
<terms>
<item>
<title><code>$entry</code></title>
<p>The <sys>entry</sys> element to process</p>
</item>
<item>
<title><code>$colspecs</code></title>
<p>The <sys>colspec</sys> elements currently in scope</p>
</item>
<item>
<title><code>$spanspecs</code></title>
<p>The <sys>spanspec</sys> elements currently in scope</p>
</item>
<item>
<title><code>$colsep</code></title>
<p>Whether column separators are currently enabled</p>
</item>
<item>
<title><code>$rowsep</code></title>
<p>Whether column separators are currently enabled</p>
</item>
<item>
<title><code>$colpos</code></title>
<p>The output column position currently being considered</p>
</item>
<item>
<title><code>$colnum</code></title>
<p>The actual column number of <code>$entry</code></p>
</item>
<item>
<title><code>$spanstr</code></title>
<p>The string representation of the row spans</p>
</item>
</terms>
</synopsis>
<p>This template processes a single <sys>entry</sys> element and generates <sys>td</sys> elements
as needed. It then calls itself on the following <sys>entry</sys> element, adjusting
parameters as necessary. Under certain conditions, this template may not be
able to output a <sys>td</sys> element immediately. In these cases, it makes whatever
adjustments are needed and calls itself or <code xref="db2html.entry.implicit">db2html.entry.implicit</code> (which,
in turn, calls this template again when it's finished).</p>
<p>Three parameters are used to determine whether a <sys>td</sys> element can be output.
The <code>$spanstr</code> parameter provides infomation about row spans in effect from
entries in previous rows; the <code>$colpos</code> parameter specifies which column we
would output to if we created a <sys>td</sys>; and the <code>$colnum</code> parameter specifies
which column this <sys>entry</sys> should be in, according to any relevant <sys>colspec</sys>
or <sys>spanspec</sys> elemets.</p>
<p>There are two conditions that cause this template not to output a <sys>td</sys> element
immediately: if the <code>$spanstr</code> parameter does not start with <sys>0:</sys>, and if the
<code>$colpos</code> parameter is less than the <code>$colnum</code> parameter.</p>
<p>The <code>$spanstr</code> parameter specifies the row spans in effect from entries in
previous rows. As this template iterates over the <sys>entry</sys> elements, it strips
off parts of <code>$spanstr</code> so that only the parts relevant to the <sys>entry</sys> are
present. If <code>$spanstr</code> does not start with <sys>0:</sys>, then an entry in a previous
row occupies this column position. In this case, that value is removed from
<code>$spanstr</code>, the <code>$colpos</code> parameter is incremented, and <code xref="db2html.entry">db2html.entry</code> is
called again. Additionally, since <code xref="db2html.entry.colnum">db2html.entry.colnum</code> doesn't consider
row spans, the <code>$colnum</code> parameter may be incremented as well.</p>
<p>If the <code>$colpos</code> parameter is less than the <code>$colnum</code> parameter, then the
document has skipped entries by explicitly referencing a column. This is
allowed in CALS tables, but not in HTML. To fill the blank spaces, we call
<code xref="db2html.entry.implicit">db2html.entry.implicit</code>, which outputs an empty <sys>td</sys> element spanning as
many columns as necessary to fill in the blanks. The <code xref="db2html.entry.implicit">db2html.entry.implicit</code>
template then calls this template again with appropriate parameter values.</p>
<p>When this template is finally able to output a <sys>td</sys> element, it calculates
appropriate values for the <sys>style</sys> and <sys>class</sys> attribute based on DocBook
attributes on the <sys>entry</sys>, the relevant <sys>colspec</sys> or <sys>spanspec</sys>, and any
relevant ancestor elements. It then calls itself on the following <sys>entry</sys>
element to output the next <sys>td</sys>.</p>
<list style="compact">
<title>Calls Templates</title>
<item>
<p><link xref="db2html.entry"/></p>
</item>
<item>
<p><link xref="db2html.entry.colnum"/></p>
</item>
<item>
<p><link xref="db2html.entry.colspan"/></p>
</item>
<item>
<p><link xref="db2html.entry.implicit"/></p>
</item>
<item>
<p><link xref="db2html.spanstr.pop"/></p>
</item>
<item>
<p><link xref="html.class.attr"/></p>
</item>
<item>
<p><link xref="html.lang.attrs"/></p>
</item>
</list>
</page>
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