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[svn-r5742]

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Purpose:
    Update variable-length datatype info.
Description:
    Added "Bit Field for Variable-length Types (Class 9)" table.
    Added "Properties for Variable-length Types (Class 9)" table.
    Fixed a few minor typos.
Platforms tested:
    IE 5
This commit is contained in:
Frank Baker 2002-07-01 16:55:24 -05:00
parent eb45c3c8a4
commit a27d38778a
1 changed files with 118 additions and 7 deletions
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125
doc/html/H5.format.html
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@ -2543,7 +2543,7 @@ Elena> "Free-space object"
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Bit Field for Bitfield types (Class 4)</b>
<b>Bit Field for Bitfield Types (Class 4)</b>
</caption>
<tr align=center>
@ -2576,7 +2576,7 @@ Elena> "Free-space object"
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Properties for Bitfield types (Class 4)</b>
<b>Properties for Bitfield Types (Class 4)</b>
</caption>
<tr align=center>
@ -2597,7 +2597,7 @@ Elena> "Free-space object"
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Bit Field for Opaque types (Class 5)</b>
<b>Bit Field for Opaque Types (Class 5)</b>
</caption>
<tr align=center>
@ -2616,7 +2616,7 @@ Elena> "Free-space object"
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Properties for Opaque types (Class 5)</b>
<b>Properties for Opaque Types (Class 5)</b>
</caption>
<tr align=center>
@ -2729,7 +2729,7 @@ Elena> "Free-space object"
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Bit Field for Enumeration types (Class 8)</b>
<b>Bit Field for Enumeration Types (Class 8)</b>
</caption>
<tr align=center>
@ -2754,7 +2754,7 @@ Elena> "Free-space object"
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Properties for Enumeration types (Class 8)</b>
<b>Properties for Enumeration Types (Class 8)</b>
</caption>
<tr align=center>
@ -2800,6 +2800,117 @@ Elena> "Free-space object"
</table>
</center>
<p>
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Bit Field for Variable-length Types (Class 9)</b>
</caption>
<tr align=center>
<th width="10%">Bits</th>
<th width="90%">Meaning</th>
</tr>
<tr valign=top>
<td>0-3</td>
<td><dl><dt><b>Type</b></dt>
<dt>0 Variable-length sequence</dt>
<dd>This variable-length datatype can be of any sequence
of data. Variable-length sequences do not have padding
or character set information.</dd>
<dt>1 Variable-length string</dt>
<dd>This variable-length datatype is composed of a series of
characters. Variable-length strings have padding and
character set information.</dd></dl>
</td>
</tr>
<tr valign=top>
<td>4-7</td>
<td><dl><dt><b>Padding type</b> (variable-length string only)</dt>
<dd>This four-bit value determines the type of padding
used for variable-length strings. The values are the same
as for the string padding type, as follows:</dd>
<dt>0 Null terminate</dt>
<dd>A zero byte marks the end of a string and is guaranteed
to be present after converting a long string to a short
string. When converting a short string to a long string,
the value is padded with additional null characters
as necessary.
<dt>1 Null pad</dt>
<dd>Null characters are added to the end of the value
during conversion from a short string to a longer string.
Conversion from a long string to a shorter string
simply truncates the value.</dd>
<dt>2 Space pad</dt>
<dd>Space characters are added to the end of the value
during conversion from a short string to a longer string.
Conversion from a long string to a shorter string simply
truncates the value.
This is the Fortran representation of the string.
</dd>
<dt>3-15 Reserved</dt>
<dd>These values are reserved for future use.</dd></dl>
</td>
</tr>
<tr valign=top>
<td>8-11</td>
<td><dl><dt><b>Character set</b> (variable-length string only)</dt>
<dd>This four-bit value specifies the character set
to be used for encoding the string.</dd>
<dt>0 8-bit ASCII</dt>
<dd>As of this writing (June 2002, Release 1.4.4),
8-bit ASCII is the only character set supported.
Therefore, no translations have been defined.</dd></dl>
</td>
</tr>
<tr valign=top>
<td>12-23</td>
<td>Reserved (zero).</td>
</tr>
</table>
</center>
<p>
<center>
<table border cellpadding=4 width="80%">
<caption align=top>
<b>Properties for Variable-length Types (Class 9)</b>
</caption>
<tr align=center>
<th width="25%">Byte</th>
<th width="25%">Byte</th>
<th width="25%">Byte</th>
<th width="25%">Byte</th>
</tr>
<tr align=center>
<td colspan=4><br>Parent Type<br><br></td>
</tr>
</table>
</center>
<center>
<table border=0 cellpadding=4 width="80%">
<tr align=left valign=top>
<td valign=top width=20%>Parent Type:</td>
<td valign=top>Each variable-length type is based on
some parent type. The information for that parent type is
described recursively by this field.</td>
</tr>
</table>
</center>
<p>
<!--
<p>Datatype examples are <a href="Datatypes.html">here</a>.
-->
@ -3965,7 +4076,7 @@ in the structure, with each item formatted according to its datatype.
-->
<address><a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a></address>
<!-- hhmts start -->
Last modified: 25 April 2002
Last modified: 1 July 2002
<!-- hhmts end -->
<br>