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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Hyperlinked ECMA C# Language Specification</title><meta name="author" content="Jon Jagger" /><link rel="stylesheet" href="ecma334.css"></link></head><body><div align="right"><em><a href="http://www.jaggersoft.com">Jon Jagger</a></em></div><div align="right"><a href="mailto:jon@jaggersoft.com">jon@jaggersoft.com</a></div><form method="get" action="http://search.atomz.com/search/"><input size="30" name="sp-q"></input><input type="submit" value="Search C# Spec"></input><input type="hidden" name="sp-a" value="sp10024177"></input><input type="hidden" name="sp-f" value="ISO-8859-1"></input></form><a href="toc.htm">Table of Contents</a> <a href="1.htm">1</a> <a href="2.htm">2</a> <a href="3.htm">3</a> <a href="4.htm">4</a> <a href="5.htm">5</a> <a href="6.htm">6</a> <a href="7.htm">7</a> <a href="8.htm">8</a> <a href="9.htm">9</a> <a href="10.htm">10</a> <a href="11.htm">11</a> <a href="12.htm">12</a> <a href="13.htm">13</a> <a href="14.htm">14</a> <a href="15.htm">15</a> <a href="16.htm">16</a> <a href="17.htm">17</a> <a href="18.htm">18</a> <a href="19.htm">19</a> <a href="20.htm">20</a> <a href="21.htm">21</a> <a href="22.htm">22</a> <a href="23.htm">23</a> <a href="24.htm">24</a> <a href="25.htm">25</a> <a href="notes.htm">Notes</a> <a href="HyperlinkedCSharpECMA.zip">Download</a><span class="ruler"></span><span class="heading">ECMA-334 C# Language Specification</span><span class="navigate"><a href="9.3.1.htm"><img src="previous.gif" alt="previous" border="0" /></a><a href="9.3.3.htm"><img src="next.gif" alt="next" border="0" /></a></span><span class="clause-depth"><a href="8.htm"><img src="previous.gif" alt="previous at this level" border="0" /></a><a href="10.htm"><img src="next.gif" alt="next at this level" border="0" /></a> <span class="clause-number-link"><a href="9.htm">9</a></span><span class="clause-title-previous"> Lexical structure</span></span><span class="clause-depth"><a href="9.2.htm"><img src="previous.gif" alt="previous at this level" border="0" /></a><a href="9.4.htm"><img src="next.gif" alt="next at this level" border="0" /></a> <span class="clause-number-link"><a href="9.3.htm">9.3</a></span><span class="clause-title-previous"> Lexical analysis</span></span><span class="clause-depth"><a href="9.3.1.htm"><img src="previous.gif" alt="previous at this level" border="0" /></a><a href="9.3.3.htm"><img src="next.gif" alt="next at this level" border="0" /></a> <span class="clause-number">9.3.2</span><span class="clause-title"> Comments</span></span><span class="locator">
     Paragraph 1</span><span class="paragraph"><span class="sentence"><span class="sentence-number">1</span> <a name="P1S1"></a>Two forms of comments are supported: delimited comments and single-line comments.</span> </span><span class="locator">
     Paragraph 2</span><span class="paragraph"><span class="sentence"><span class="sentence-number">1</span> <a name="P2S1"></a>A delimited comment begins with the characters /* and ends with the characters */.</span> <span class="sentence"><span class="sentence-number">2</span> <a name="P2S2"></a>Delimited comments can occupy a portion of a line, a single line, or multiple lines.</span> <span class="example">[Example: The example <pre class="code-example">
/* Hello, world program  
This program writes "hello, world" to the console  
*/  
class Hello  
{  
   static void Main() {  
      System.Console.WriteLine("hello, world");  
   }  
}  
</pre>includes a delimited comment. end example]</span> </span><span class="locator">
     Paragraph 3</span><span class="paragraph"><span class="sentence"><span class="sentence-number">1</span> <a name="P3S1"></a>A single-line comment begins with the characters // and extends to the end of the line.</span> <span class="example">[Example: The example <pre class="code-example">
// Hello, world program  
//   This program writes "hello, world" to the console  
//  
class Hello // any name will do for this class  
{  
   static void Main() { // this method must be named "Main"  
      System.Console.WriteLine("hello, world");  
   }  
}  
</pre>shows several single-line comments. end example]</span> <span class="grammar-production"><span class="name"><a name="comment"></a>comment</span> :: <span class="rhs"><span class="non-terminal"><a href="9.3.2.htm#single-line-comment">single-line-comment</a></span> </span><span class="rhs"><span class="non-terminal"><a href="9.3.2.htm#delimited-comment">delimited-comment</a></span> </span></span><span class="grammar-production"><span class="name"><a name="single-line-comment"></a>single-line-comment</span> :: <span class="rhs"><span class="terminal">//</span> <span class="non-terminal"><a href="9.3.2.htm#input-characters">input-characters</a></span><sub>opt</sub> </span></span><span class="grammar-production"><span class="name"><a name="input-characters"></a>input-characters</span> :: <span class="rhs"><span class="non-terminal"><a href="9.3.2.htm#input-character">input-character</a></span> </span><span class="rhs"><span class="non-terminal"><a href="9.3.2.htm#input-characters">input-characters</a></span> <span class="non-terminal"><a href="9.3.2.htm#input-character">input-character</a></span> </span></span><span class="grammar-production"><span class="name"><a name="input-character"></a>input-character</span> :: <span class="rhs">Any Unicode character except a <span class="non-terminal"><a href="9.3.2.htm#new-line-character">new-line-character</a></span> </span></span><span class="grammar-production"><span class="name"><a name="new-line-character"></a>new-line-character</span> :: <span class="rhs">Carriage return character (U+000D) </span><span class="rhs">Line feed character (U+000A) </span><span class="rhs">Line separator character (U+2028) </span><span class="rhs">Paragraph separator character (U+2029) </span></span><span class="grammar-production"><span class="name"><a name="delimited-comment"></a>delimited-comment</span> :: <span class="rhs"><span class="terminal">/*</span> <span class="non-terminal"><a href="9.3.2.htm#delimited-comment-characters">delimited-comment-characters</a></span><sub>opt</sub> <span class="terminal">*/</span> </span></span><span class="grammar-production"><span class="name"><a name="delimited-comment-characters"></a>delimited-comment-characters</span> :: <span class="rhs"><span class="non-terminal"><a href="9.3.2.htm#delimited-comment-character">delimited-comment-character</a></span> </span><span class="rhs"><span class="non-terminal"><a href="9.3.2.htm#delimited-comment-characters">delimited-comment-characters</a></span> <span class="non-terminal"><a href="9.3.2.htm#delimited-comment-character">delimited-comment-character</a></span> </span></span><span class="grammar-production"><span class="name"><a name="delimited-comment-character"></a>delimited-comment-character</span> :: <span class="rhs"><span class="non-terminal"><a href="9.3.2.htm#not-asterisk">not-asterisk</a></span> </span><span class="rhs"><span class="terminal">*</span> <span class="non-terminal"><a href="9.3.2.htm#not-slash">not-slash</a></span> </span></span><span class="grammar-production"><span class="name"><a name="not-asterisk"></a>not-asterisk</span> :: <span class="rhs">Any Unicode character except * </span></span><span class="grammar-production"><span class="name"><a name="not-slash"></a>not-slash</span> :: <span class="rhs">Any Unicode character except / </span></span></span><span class="locator">
     Paragraph 4</span><span class="paragraph"><span class="sentence"><span class="sentence-number">1</span> <a name="P4S1"></a>Comments do not nest.</span> <span class="sentence"><span class="sentence-number">2</span> <a name="P4S2"></a>The character sequences /* and */ have no special meaning within a single-line comment, and the character sequences // and /* have no special meaning within a delimited comment.</span> </span><span class="locator">
     Paragraph 5</span><span class="paragraph"><span class="sentence"><span class="sentence-number">1</span> <a name="P5S1"></a>Comments are not processed within character and string literals.</span> </span><span class="ruler"></span><table><tr><td><table align="left" bgcolor="navy"><tr bgcolor="navy"><td><font face="Arial,sans-serif" size="6" color="yellow"><strong>{ JSL }</strong></font></td></tr></table></td></tr><tr><td><font face="Arial,sans-serif" size="2" color="navy"><strong>Jagger Software Ltd</strong></font></td></tr><tr><td><font face="Arial,sans-serif" size="2" color="navy"><strong>Company # 4070126</strong></font></td></tr><tr><td><font face="Arial,sans-serif" size="2" color="navy"><strong>VAT # 762 5213 42</strong></font></td></tr></table><img src="valid-html401.png" align="left" height="31" width="88" alt="Valid HTML 4.01" /><img src="vcss.gif" align="left" height="31" width="88" alt="Valid CSS" /></body></html>
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