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Initial commit of OpenSPARC T2 design and verification files.
[OpenSPARC-T2-DV] / tools / src / nas,5.n2.os.2 / lib / python / html / python / ref / atoms.html
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AT		 1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
2<html>
3<head>
4<link rel="STYLESHEET" href="ref.css" type='text/css' />
5<link rel="SHORTCUT ICON" href="../icons/pyfav.png" type="image/png" />
6<link rel='start' href='../index.html' title='Python Documentation Index' />
7<link rel="first" href="ref.html" title='Python Reference Manual' />
8<link rel='contents' href='contents.html' title="Contents" />
9<link rel='index' href='genindex.html' title='Index' />
10<link rel='last' href='about.html' title='About this document...' />
11<link rel='help' href='about.html' title='About this document...' />
12<link rel="next" href="primaries.html" />
13<link rel="prev" href="conversions.html" />
14<link rel="parent" href="expressions.html" />
15<link rel="next" href="atom-identifiers.html" />
16<meta name='aesop' content='information' />
17<title>5.2 Atoms</title>
18</head>
19<body>
20<DIV CLASS="navigation">
21<div id='top-navigation-panel' xml:id='top-navigation-panel'>
22<table align="center" width="100%" cellpadding="0" cellspacing="2">
23<tr>
24<td class='online-navigation'><a rel="prev" title="5.1 Arithmetic conversions"
25 href="conversions.html"><img src='../icons/previous.png'
26 border='0' height='32' alt='Previous Page' width='32' /></A></td>
27<td class='online-navigation'><a rel="parent" title="5. Expressions"
28 href="expressions.html"><img src='../icons/up.png'
29 border='0' height='32' alt='Up One Level' width='32' /></A></td>
30<td class='online-navigation'><a rel="next" title="5.2.1 Identifiers (Names)"
31 href="atom-identifiers.html"><img src='../icons/next.png'
32 border='0' height='32' alt='Next Page' width='32' /></A></td>
33<td align="center" width="100%">Python Reference Manual</td>
34<td class='online-navigation'><a rel="contents" title="Table of Contents"
35 href="contents.html"><img src='../icons/contents.png'
36 border='0' height='32' alt='Contents' width='32' /></A></td>
37<td class='online-navigation'><img src='../icons/blank.png'
38 border='0' height='32' alt='' width='32' /></td>
39<td class='online-navigation'><a rel="index" title="Index"
40 href="genindex.html"><img src='../icons/index.png'
41 border='0' height='32' alt='Index' width='32' /></A></td>
42</tr></table>
43<div class='online-navigation'>
44<b class="navlabel">Previous:</b>
45<a class="sectref" rel="prev" href="conversions.html">5.1 Arithmetic conversions</A>
46<b class="navlabel">Up:</b>
47<a class="sectref" rel="parent" href="expressions.html">5. Expressions</A>
48<b class="navlabel">Next:</b>
49<a class="sectref" rel="next" href="atom-identifiers.html">5.2.1 Identifiers (Names)</A>
50</div>
51<hr /></div>
52</DIV>
53<!--End of Navigation Panel-->
54
55<H1><A NAME="SECTION007200000000000000000"></A><A NAME="atoms"></A>
56<a id='l2h-332' xml:id='l2h-332'></a>
57<BR>
585.2 Atoms
59</H1>
60
61<P>
62Atoms are the most basic elements of expressions. The simplest atoms
63are identifiers or literals. Forms enclosed in
64reverse quotes or in parentheses, brackets or braces are also
65categorized syntactically as atoms. The syntax for atoms is:
66
67<P>
68<dl><dd class="grammar">
69<div class="productions">
70<table>
71<tr>
72 <td><a id='tok-atom' xml:id='tok-atom'>atom</a></td>
73 <td>::=</td>
74 <td><a class='grammartoken' href="identifiers.html#tok-identifier">identifier</a> | <a class='grammartoken' href="atom-literals.html#tok-literal">literal</a> | <a class='grammartoken' href="atoms.html#tok-enclosure">enclosure</a></td></tr>
75 <tr>
76 <td><a id='tok-enclosure' xml:id='tok-enclosure'>enclosure</a></td>
77 <td>::=</td>
78 <td><a class='grammartoken' href="parenthesized.html#tok-parenth_form">parenth_form</a> | <a class='grammartoken' href="lists.html#tok-list_display">list_display</a></td></tr>
79 <tr>
80 <td></td>
81 <td></td>
82 <td><code>| <a class='grammartoken' href="genexpr.html#tok-generator_expression">generator_expression</a> | <a class='grammartoken' href="dict.html#tok-dict_display">dict_display</a></code></td></tr>
83 <tr>
84 <td></td>
85 <td></td>
86 <td><code>| <a class='grammartoken' href="string-conversions.html#tok-string_conversion">string_conversion</a></code></td></tr>
87</table>
88</div>
89<a class="grammar-footer"
90 href="grammar.txt" type="text/plain"
91 >Download entire grammar as text.</a>
92</dd></dl>
93
94<P>
95
96<p><br /></p><hr class='online-navigation' />
97<div class='online-navigation'>
98<!--Table of Child-Links-->
99<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></a>
100
101<UL CLASS="ChildLinks">
102<LI><A href="atom-identifiers.html">5.2.1 Identifiers (Names)</a>
103<LI><A href="atom-literals.html">5.2.2 Literals</a>
104<LI><A href="parenthesized.html">5.2.3 Parenthesized forms</a>
105<LI><A href="lists.html">5.2.4 List displays</a>
106<LI><A href="genexpr.html">5.2.5 Generator expressions</a>
107<LI><A href="dict.html">5.2.6 Dictionary displays</a>
108<LI><A href="string-conversions.html">5.2.7 String conversions</a>
109</ul>
110<!--End of Table of Child-Links-->
111</div>
112
113<DIV CLASS="navigation">
114<div class='online-navigation'>
115<p></p><hr />
116<table align="center" width="100%" cellpadding="0" cellspacing="2">
117<tr>
118<td class='online-navigation'><a rel="prev" title="5.1 Arithmetic conversions"
119 href="conversions.html"><img src='../icons/previous.png'
120 border='0' height='32' alt='Previous Page' width='32' /></A></td>
121<td class='online-navigation'><a rel="parent" title="5. Expressions"
122 href="expressions.html"><img src='../icons/up.png'
123 border='0' height='32' alt='Up One Level' width='32' /></A></td>
124<td class='online-navigation'><a rel="next" title="5.2.1 Identifiers (Names)"
125 href="atom-identifiers.html"><img src='../icons/next.png'
126 border='0' height='32' alt='Next Page' width='32' /></A></td>
127<td align="center" width="100%">Python Reference Manual</td>
128<td class='online-navigation'><a rel="contents" title="Table of Contents"
129 href="contents.html"><img src='../icons/contents.png'
130 border='0' height='32' alt='Contents' width='32' /></A></td>
131<td class='online-navigation'><img src='../icons/blank.png'
132 border='0' height='32' alt='' width='32' /></td>
133<td class='online-navigation'><a rel="index" title="Index"
134 href="genindex.html"><img src='../icons/index.png'
135 border='0' height='32' alt='Index' width='32' /></A></td>
136</tr></table>
137<div class='online-navigation'>
138<b class="navlabel">Previous:</b>
139<a class="sectref" rel="prev" href="conversions.html">5.1 Arithmetic conversions</A>
140<b class="navlabel">Up:</b>
141<a class="sectref" rel="parent" href="expressions.html">5. Expressions</A>
142<b class="navlabel">Next:</b>
143<a class="sectref" rel="next" href="atom-identifiers.html">5.2.1 Identifiers (Names)</A>
144</div>
145</div>
146<hr />
147<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
148</DIV>
149<!--End of Navigation Panel-->
150<ADDRESS>
151See <i><a href="about.html">About this document...</a></i> for information on suggesting changes.
152</ADDRESS>
153</BODY>
154</HTML>
Full OpenSPARC design & verification tarball including full HDL.