Skip to main content
aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to 'core/docs/org.eclipse.wst.sse.doc.user/topics/csrcedt006.dita')
-rw-r--r--core/docs/org.eclipse.wst.sse.doc.user/topics/csrcedt006.dita115
1 files changed, 115 insertions, 0 deletions
diff --git a/core/docs/org.eclipse.wst.sse.doc.user/topics/csrcedt006.dita b/core/docs/org.eclipse.wst.sse.doc.user/topics/csrcedt006.dita
new file mode 100644
index 0000000000..2dbfe9d6cd
--- /dev/null
+++ b/core/docs/org.eclipse.wst.sse.doc.user/topics/csrcedt006.dita
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--Arbortext, Inc., 1988-2006, v.4002-->
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN"
+ "..\dtd\concept.dtd">
+<concept id="csrcedt006" xml:lang="en-us">
+<title>Content assist</title>
+<shortdesc>Content assist helps you insert or finish a tag or function or
+finish a line of code in a structured text editor. The placement of the cursor
+in the source file provides the context for the content assist to offer suggestions
+for completion.</shortdesc>
+<prolog><metadata>
+<keywords><indexterm keyref="csrcedt006|1|contentassistanceoverview" status="new">content
+assistance<indexterm>overview</indexterm></indexterm><indexterm keyref="csrcedt006|2|structuredtexteditorscontentassistance"
+status="changed">structured text editors<indexterm>content assistance<indexterm>overview</indexterm></indexterm></indexterm>
+</keywords>
+</metadata></prolog>
+<conbody>
+<p>Most of the structured text editors have content assist. For a list of
+editors that have content assist, see <xref href="csrcedt004.dita" type="concept">Structured
+text editors for markup languages</xref>. For information on how to get content
+assistance, see <xref href="tsrcedt005.dita" type="task">Getting content assistance
+in structured text editors</xref></p>
+<p>The sections below describe specifics of HTML content assist, <tm tmclass="special"
+tmowner="Sun Microsystems, Inc." tmtype="tm" trademark="JavaScript">JavaScript</tm> content
+assist, and JSP content assist.</p>
+<section><title>HTML content assist</title><p>HTML is flexible in that some
+HTML elements allow end tags to be optionally omitted, such as <codeph>P</codeph>, <codeph>DT</codeph>, <codeph>DD</codeph>, <codeph>LI</codeph>, <codeph
+>THEAD</codeph>, <codeph>TR</codeph>, <codeph>TD</codeph>, <codeph>TH</codeph>,
+and so on. Other HTML elements that are defined to have no content may require
+the end tag always be omitted, such as <codeph>BR</codeph>, <codeph>HR</codeph>, <codeph>LINK</codeph>, <codeph>META</codeph>,
+and <codeph>IMG</codeph>. This flexibility makes the content assist function
+within the HTML source page editor less precise than it might be with a more
+rigidly constrained markup language.</p><p>HTML content assist is most beneficial
+when you need to complete a tag name, add an attribute name-value pair within
+a start tag, or select from an enumerated list of attribute values.</p><p>Although
+content assist only shows attribute names that have not already been specified
+in a start tag, it does not take into account grammar constraints for tags.
+For example, the <codeph>HEAD</codeph> element in HTML only permits zero or
+one occurrences of a <codeph>TITLE</codeph> tag in its content. If you prompt
+for content assist within a <codeph>HEAD</codeph> content that already contains
+a <codeph>TITLE</codeph> tag, content assist will still show <codeph>TITLE</codeph> in
+its proposal list.</p><p>However, if an attribute is required according to
+the DTD/Schema, that attribute will show up at the top of the list, with a
+yellow circle indicator on its icon.</p><p>If your cursor is in a position
+where content assist is available, a pop-up list of available choices is displayed.
+The list is based on the context. For example, if you use content assist directly
+after an opening paragraph tag (<codeph>&lt;p></codeph>) , the first item
+in the content assist list will be the corresponding closing paragraph (<codeph>&lt;/p></codeph>)
+tag.</p><p>The content assist list displays all available tags for the current
+cursor position, including templates. The picture below shows the default
+content assist list for a paragraph tag example:<image alt="HTML Content assist"
+href="../images/ncontass.gif" placement="break"></image></p><p>Tag proposals
+are listed alphabetically. If you type a <codeph>&lt;</codeph> (to begin a
+new tag) before prompting for content assist, and begin typing the first one
+or two letters of the tag that you want to add, the proposal list automatically
+refreshes to reflect proposals that match the pattern you have typed. If you
+do not type a <codeph>&lt;</codeph> before prompting for content assist, you
+can click within the proposal list and then type the letter that the tag begins
+with, to reduce (somewhat) the amount of scrolling to locate the desired tag.</p><p>As
+you type the first one or two letters of the attribute names or enumerated
+attribute values that you want to add to a tag, the list automatically refreshes
+to reflect proposals that match the pattern you have typed.</p><note type="restriction"><image
+alt="For Linux." href="../images/nlinux.gif"></image> When using Linux (Motif
+or GTK) and a DBCS locale, double-clicking on the content assist list can
+sometimes cause the <tm tmclass="special" tmowner="Sun Microsystems, Inc."
+tmtype="tm" trademark="Java">Java</tm> VM to terminate. Instead of double-clicking
+on the list, use the arrows and Enter keys to make the selection from the
+list.</note></section>
+<section><title>JSP content assist</title><p>You have many options for embedding <tm
+tmclass="special" tmowner="Sun Microsystems, Inc." tmtype="tm" trademark="Java">Java</tm> and
+HTML code in your JSP pages by using content assist.</p><p>All of the JSP
+tags are included both in the template list and in XML format (for example, <codeph>&lt;jsp:expression></codeph>).
+To add JSP scriptlet tags, for example, move the cursor to the appropriate
+position in the file and press Ctrl+Space to use content assist. Select <image
+alt="JSP scriptlet content assist" href="../images/nmacscrp.gif" placement="inline">
+</image> from the proposal list to insert <codeph>&lt;% %></codeph> in the
+document.</p><p>Scriptlets are inserted in a tag <codeph>&lt;% %></codeph>.
+For example: <codeblock>&lt;% System.currentTimeMillis() %></codeblock></p><p>This
+example will evaluate the <tm tmclass="special" tmowner="Sun Microsystems, Inc."
+tmtype="tm" trademark="Java">Java</tm> statement to get the current time in
+milliseconds.</p><p>To have the result of the statement inserted in the file,
+put an equals sign (=) in the front of the statement. For example: <codeblock>&lt;b>This is the time : &lt;%= System.currentTimeMillis()%>&lt;/b></codeblock
+></p><p>When you are within a scriptlet you are writing pure <tm tmclass="special"
+tmowner="Sun Microsystems, Inc." tmtype="tm" trademark="Java">Java</tm> code.
+Therefore, content assist works exactly the same as it does for the <tm tmclass="special"
+tmowner="Sun Microsystems, Inc." tmtype="tm" trademark="Java">Java</tm> editor.
+For example, if you request content assist after <codeph>System</codeph>,
+content assist displays a list of methods. <note><tm tmclass="special" tmowner="Sun Microsystems, Inc."
+tmtype="tm" trademark="Java">Java</tm> content assist works only in a Web
+project, because it requires a buildpath to find the appropriate <tm tmclass="special"
+tmowner="Sun Microsystems, Inc." tmtype="tm" trademark="Java">Java</tm> classes.</note></p><p>There
+are also special tags such as useBean. For example: <codeblock>&lt;jsp:useBean id="useBean" class="java.lang.String"/></codeblock></p><p>The
+useBean tag enables you to create a bean called <codeph>aString</codeph> of
+type <codeph>String</codeph>. Then when you use content assist, this is recognized
+as a declared variable. For example, if you use content assist after <codeph>aString</codeph>,
+as follows:</p><p> <codeblock>&lt;% aString. %> </codeblock>the content assist
+list shows available methods. This is because <codeph>aString</codeph> has
+been declared as a bean of type String.</p><p>If you use content assist after
+the <codeph>a</codeph>, as follows: <codeblock>&lt;% a %> </codeblock>content
+assist knows that <codeph>aString</codeph> exists, and it is shown in the
+content assist list.</p></section>
+</conbody>
+<related-links>
+<linkpool type="concept">
+<link href="csrcedt004.dita"><linktext>Structured text editors for markup
+languages</linktext></link>
+</linkpool>
+<linkpool type="task">
+<link href="tsrcedt005.dita"><linktext>Getting content assistance in structured
+text editors</linktext></link>
+<link href="tsrcedt024.dita"><linktext>Adding and removing HTML templates</linktext>
+</link>
+</linkpool>
+</related-links>
+</concept>

Back to the top