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Revision: 1.1, Sat Nov 1 17:06:05 2008 UTC (12 months, 2 weeks ago) by mdavis Branch: MAIN CVS Tags: HEAD *** empty log message *** |
<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta name="Title" content="Google Docs - Revised Property Stability Table" />
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<title>Google Docs - Revised Property Stability Table</title>
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<p>Unmerged Cells</p>
<table cellspacing="0" cellpadding="4" style="margin:1em; border-collapse: collapse; " id="table1" border="1">
<tr>
<th style="padding:0in 0in 0in 0in" align="left">
<p ><span style="font-size:14.0pt;">Applicable Unicode
Versions</span></p>
</th>
<th style="padding:0in 0in 0in 0in" align="left">
<p ><span style="font-size:14.0pt;">Constraints</span></p>
</th>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
1.1.5+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
General_Category property value
Control (Cc) is immutable: the set of code points with that
value will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
1.1.5+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
Canonical_Combining_Class property
values are limited to the values 0 to 255.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
1.1.5+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">All characters
other than those with General_Category
property values Spacing_Mark (Mc)
and Nonspacing_Mark (Mn)
have the Canonical_Combining_Class
property value 0.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
2.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
General_Category property value
Private_Use (Co) is immutable: the
set of code points with that value will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
2.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
General_Category property value
Surrogate (Cs) is immutable: the set of code points with that
value will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
2.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Once a
character is assigned, both its Name and its
Jamo_Short_Name will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
2.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Canonical
and compatibility mappings (Decomposition_Mapping
property values) are always in canonical order, and the resulting
recursive decomposition will also be in canonical order.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
2.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Canonical
mappings (Decomposition_Mapping
property values) are always limited either to a single value
or to a pair. The second character in the pair cannot itself
have a canonical mapping.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
2.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Canonical
mappings (Decomposition_Mapping
property values) are always limited so that no string when normalized
to NFC expands to more than 3× in length (measured in code units).</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
2.1.3+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
General_Category property values
will not be further subdivided.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
Bidi_Class property values will
not be further subdivided.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Once a
character is assigned, its Canonical_Combining_Class
will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.0.1+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
Case_Folding property value is limited
so that no string when case folded expands to more than 3× in
length (measured in code units).</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
Noncharacter_Code_Point property
is an immutable code point property, which means that its property
values for all Unicode code points will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Once a
character is ID_Continue, it must
continue to be so in all future versions.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">If a character
is ID_Start then it must also be
ID_Continue.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Once a
character is ID_Start, it must continue
to be so in all future versions.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Once a
character is XID_Continue, it must
continue to be so in all future versions.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">If a character
is XID_Start then it must also be
XID_Continue.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
3.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Once a
character is XID_Start, it must
continue to be so in all future versions.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
4.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The property
values for the Bidirectional properties
Bidi_Class and Bidi_Mirrored
preserve canonical equivalence.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
4.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The set
of characters having General_Category=Nd
will always be the same as the set of characters having
Numeric_Type=de.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
4.0.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Once a
character is assigned, its Decomposition_Mapping
will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
4.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">All characters
with the Lowercase property and all characters with the Uppercase
property have the Alphabetic property.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
4.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">If a character
is ID_Continue then it must be neither
Pattern_Syntax nor
Pattern_White_Space.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
4.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">The
Pattern_Syntax and
Pattern_Whitespace properties are
immutable code point properties, which means that their property
values for all Unicode code points will never change.</span></p>
</td>
</tr>
<tr>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">Unicode
4.1.0+</span></p>
</td>
<td style="padding:0in 0in 0in 0in">
<p ><span style="font-size:14.0pt;">If a character
is XID_Continue then it must be
neither Pattern_Syntax nor
Pattern_White_Space.</span></p>
</td>
</tr>
</tbody>
</table>
<p > </p>
</td>
</tr>
</tbody>
</table>
<div id="footer">
<p style="background:#EFEFEF">
<span style="font-size:14.0pt;
font-family:Arial;display:none;"> </span></p>
<p ><span style="font-size:14.0pt;"> </span></p>
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