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8		<title>Restrictions on Usable Characters</title>
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12
13<h1>Restrictions on Usable Characters</h1>
14
15<h2>Valid Characters for Paths</h2>
16<p>
17The following characters can be used in the paths stored in the intermediate file to locations on the computer.</p>
18
19<center><table class="arguments">
20<tr><td>Valid Characters</td><td>Double-byte Japanese characters.<BR>Single-byte characters except those listed as invalid below.</td></tr>
21<tr><td>Invalid Characters</td><td>\ : ; * ? &lt; &gt; | & ' &quot;<BR>control text characters (e.g., \n)</td></tr>
22</table></center>
23<br>
24<p>
25Regular expressions: <br> <br>
26<pre>
27    tba
28</pre>
29
30
31<h2>Valid Characters for Names of Models, Nodes, Materials, Textures and the Like</h2>
32<p>
33The following characters can be used.</p>
34<center><table class="arguments">
35<tr><td>Valid Characters</td><td>Single-byte alphanumeric characters (both upper- and lower-case)<BR><CODE>-</CODE>, <CODE>_</CODE>, <CODE>.</CODE></td></tr>
36<tr><td>Invalid Characters</td><td>double-byte Japanese characters<BR>single-byte characters except those listed as valid above<BR>control characters (e.g., \n)</td></tr>
37</table></center>
38<br>
39<p>
40Regular expressions: <br> <br>
41<pre>
42    [0-9A-Za-z\-\._]+
43</pre>
44
45
46<a name="user_keyword"></a>
47<h2>Valid Characters for User Data Identifiers</h2>
48<p>
49User data can be added to nodes and materials stored in intermediate files. Characters that can be used in strings to identify user data are as follows:</p>
50<center><table class="arguments">
51<tr><td>Valid Characters</td><td>Single-byte alphanumeric characters (both upper- and lower-case)<BR><CODE>-</CODE>, <CODE>_</CODE>, <CODE>.</CODE></td></tr>
52<tr><td>Invalid Characters</td><td>double-byte Japanese characters<BR>single-byte characters except those listed as valid above<BR>control characters (e.g., \n)</td></tr>
53</table></center>
54<br>
55<p>
56Regular expressions: <br> <br>
57<pre>
58    [0-9A-Za-z\-\._]+
59</pre>
60
61
62<h2>Valid Characters for User Data</h2>
63<p>
64Characters that can be used when storing strings in user data are as follows:</p>
65<center><table class="arguments">
66<tr><td>Valid Characters</td><td>BMP region Unicode characters</td></tr>
67<tr><td>Invalid Characters</td><td>Non-BMP region Unicode characters. (Expressed as UTF-16 encoded surrogate pairs)</td></tr>
68</table></center>
69<br>
70<p>
71Regular expressions: <br> <br>
72<pre>
73    tba
74</pre>
75<br>
76
77	<hr><p>CONFIDENTIAL</p></body>
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