debug/org.eclipse.cdt.debug.application.doc/concepts/cdt_c_content_assist.htm - cdt/org.eclipse.cdt - Git at Google

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 <div role="main">
 <h1>Content Assist</h1>

 <p>Content Assist is a set of tools built into the CDT that can reduce the number of keystrokes you must
 type to create your code.  The Content Assist plug-in consists of several components that forecast what
 a developer will type, based on the current context, scope, and prefix.</p>

 <h2>Code completion</h2>

 <p>Content assist provides code completion anywhere in the document. For the current project a list is
 displayed of the elements that begin with the letter combination you entered, and
 the relevance of each proposal is determined in the following order:</p>

 <ul>
   <li>Fields</li>
   <li>Variables</li>
   <li>Methods</li>
   <li>Functions</li>
   <li>Classes</li>
   <li>Structs</li>
   <li>Unions</li>
   <li>Namespaces</li>
   <li>Enumerations</li>
 </ul>

 You trigger the Code completion feature when you call Content Assist (such as when you type <span class="typewriter">Ctrl+Space</span>), but it is auto-activated when you type
 <Q><strong>.</strong></Q>, <Q><strong>-></strong></Q> or <Q><strong>::</strong></Q>.</p>

 <p><img src="../images/contentAssist_example.png"  alt="C++ example showing Code Assist popup"></p>

 <p>You can view the signature of each item on the list in a pop-up by pointing to it. You can then select an item in the list to  insert it directly into your code. </p>

 <h2>Templates</h2>

 <p>You can create and save templates for frequently used sections of code, which will be inserted according to scope. The Content Assist feature also provides quick access to code
 templates.</p>

 <p>When you enter a letter combination in the C/C++ editor, and type <span class="typewriter">CTRL+SPACE</span> (or right-click and click <strong>Content Assist</strong>), a
 list of code elements and templates that start with the letter combination that you typed is displayed.</p>

 <p>You can then select a template from the list and it is inserted directly into your code.</p>

 <img src="../images/editor_c_codetemplates_use.png"  alt="C++ example showing Code Assist popup"></p>

 <p>For example, the template <samp>do while statement</samp> contains the following code:</p>

 <p><img src="../images/codetemplates_example.png"  alt="Code Template showing do-while example"></p>

 <p> When you select the <samp>do</samp> template from the list, you insert the following code:</p>

 <p><pre>do {
 } while (condition);</pre></p>


 <p>If the completion engine finds only one proposal in your templates, that proposal is inserted at the current cursor position.
 For example if you create a new .cpp file and type <span class="typewriter">mai+CTRL+SPACE</span> the following code is inserted at the cursor location:</p>
 <p><pre>int
 main(int argc, char **argv) {

 }</pre></p>

 <h2>No Completions</h2>

 <p>If you invoke Content Assist, but no completions are found a message will be displayed on the status to inform you that the Content Assist parser has timed out.</p>

 <p><img src="../images/cdt_ca_no_completions.png"  alt="Content Assist No completions available message"></p>


 <p><img src="../images/ngconcepts.gif" ALT="Related concepts" width="143" height="21">
 <br>
 <a href="cdt_o_code_entry.htm">Code entry</a></p>
 <p><img src="../images/ngtasks.gif" ALT="Related tasks" width="143" height="21">
 <br>
 <a href="../tasks/cdt_t_contentassist.htm">Using Content Assist</a><br>
 <a href="../tasks/cdt_t_add_codetemp.htm">Creating and editing templates</a><br>
 <a href="../tasks/cdt_t_imp_code_temp.htm">Importing and exporting templates</a></p>
 <p><img src="../images/ngref.gif" ALT="Related reference" width="143" height="21">
 <br>
 <a href="../reference/cdt_u_icons.htm">C/C++ perspective icons</a></p>

 <p>

 <img src="../images/ng00_04a.gif" ALT="IBM Copyright Statement" ></p>
 </div>
 </body>

 </html>
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
	<html lang="en">

	<head>
	<meta http-equiv="Content-Language" content="en-us">
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>Content Assist</title>
	<link rel="stylesheet" type="text/css" href="../help.css">
	</head>

	<body>
	<div role="main">
	<h1>Content Assist</h1>

	<p>Content Assist is a set of tools built into the CDT that can reduce the number of keystrokes you must
	type to create your code. The Content Assist plug-in consists of several components that forecast what
	a developer will type, based on the current context, scope, and prefix.</p>

	<h2>Code completion</h2>

	<p>Content assist provides code completion anywhere in the document. For the current project a list is
	displayed of the elements that begin with the letter combination you entered, and
	the relevance of each proposal is determined in the following order:</p>

	<ul>
	<li>Fields</li>
	<li>Variables</li>
	<li>Methods</li>
	<li>Functions</li>
	<li>Classes</li>
	<li>Structs</li>
	<li>Unions</li>
	<li>Namespaces</li>
	<li>Enumerations</li>
	</ul>

	You trigger the Code completion feature when you call Content Assist (such as when you type <span class="typewriter">Ctrl+Space</span>), but it is auto-activated when you type
	<Q><strong>.</strong></Q>, <Q><strong>-></strong></Q> or <Q><strong>::</strong></Q>.</p>

	<p><img src="../images/contentAssist_example.png" alt="C++ example showing Code Assist popup"></p>

	<p>You can view the signature of each item on the list in a pop-up by pointing to it. You can then select an item in the list to insert it directly into your code. </p>

	<h2>Templates</h2>

	<p>You can create and save templates for frequently used sections of code, which will be inserted according to scope. The Content Assist feature also provides quick access to code
	templates.</p>

	<p>When you enter a letter combination in the C/C++ editor, and type <span class="typewriter">CTRL+SPACE</span> (or right-click and click <strong>Content Assist</strong>), a
	list of code elements and templates that start with the letter combination that you typed is displayed.</p>

	<p>You can then select a template from the list and it is inserted directly into your code.</p>

	<img src="../images/editor_c_codetemplates_use.png" alt="C++ example showing Code Assist popup"></p>

	<p>For example, the template <samp>do while statement</samp> contains the following code:</p>

	<p><img src="../images/codetemplates_example.png" alt="Code Template showing do-while example"></p>

	<p> When you select the <samp>do</samp> template from the list, you insert the following code:</p>

	<p><pre>do {
	} while (condition);</pre></p>


	<p>If the completion engine finds only one proposal in your templates, that proposal is inserted at the current cursor position.
	For example if you create a new .cpp file and type <span class="typewriter">mai+CTRL+SPACE</span> the following code is inserted at the cursor location:</p>
	<p><pre>int
	main(int argc, char **argv) {

	}</pre></p>

	<h2>No Completions</h2>

	<p>If you invoke Content Assist, but no completions are found a message will be displayed on the status to inform you that the Content Assist parser has timed out.</p>

	<p><img src="../images/cdt_ca_no_completions.png" alt="Content Assist No completions available message"></p>


	<p><img src="../images/ngconcepts.gif" ALT="Related concepts" width="143" height="21">
	<br>
	<a href="cdt_o_code_entry.htm">Code entry</a></p>
	<p><img src="../images/ngtasks.gif" ALT="Related tasks" width="143" height="21">
	<br>
	<a href="../tasks/cdt_t_contentassist.htm">Using Content Assist</a><br>
	<a href="../tasks/cdt_t_add_codetemp.htm">Creating and editing templates</a><br>
	<a href="../tasks/cdt_t_imp_code_temp.htm">Importing and exporting templates</a></p>
	<p><img src="../images/ngref.gif" ALT="Related reference" width="143" height="21">
	<br>
	<a href="../reference/cdt_u_icons.htm">C/C++ perspective icons</a></p>

	<p>

	<img src="../images/ng00_04a.gif" ALT="IBM Copyright Statement" ></p>
	</div>
	</body>

	</html>