Adobe Extending Dreamweaver CS4 - Manual (Page 294)

288 EXTENDING DREAMWEAVER CS4
Server behaviors
<quickSearch>Response.Write</quickSearch>
<searchPatterns whereToSearch="directive">
<searchPattern paramNames="rs">/(\w+)\.EOF/</searchPattern>
<searchPattern paramNames="new__url">
/if\s*\([^\r\n]*\)\s*Response\.Redirect\("([^\r\n]*)"/i
</searchPattern>
</searchPatterns>
These shortened search patterns are flexible, so the user can add to the code. However, if the server behavior changes
the URL when the user clicks OK, the participant is replaced and the customizations are lost. To update more precisely,
add an
updatePatterns tag that contains a pattern for updating each parameter:
<updatePatterns>
<updatePattern paramNames="rs">/(\b)\w+(\.EOF)/\</updatePattern>
<updatePattern paramNames="new__url">
/(Response\.Redirect\(")[^\r\n]*(")/i
</updatePattern>
</updatePatterns>
In update patterns, the parentheses are reversed and are placed around the text before and after the parameter. For
search patterns, use the
textBeforeParam(param)textAfterParam parameter. For update patterns, use the
(textBeforeParam)param(textAfterParam) parameter. All the text between the two parenthetical subexpressions
is replaced with the new value for the parameter.
Deleting server behaviors
You can delete server behaviors by:
• Default deletion and dependency counts
• Using delete flags to limit participant deletion
Default deletion and dependency counts
The user can delete an instance that is selected in the Server Behaviors panel by clicking the Minus (-) button or
pressing Delete. All the participants are removed except for the ones that other server behaviors share. Specifically, if
more than one server behavior has a participant pointer to the same node, the node is not deleted.
By default, participants are deleted by removing an entire tag. If the insert location is wrapSelection , only the outer
tag is removed. For attributes, the entire attribute declaration is removed. The following example shows an attribute
participant on the
ACTION attribute of a form tag:
<form action="<% my_participant %>">
After deleting the attribute, only form remains.
Using delete flags to limit participant deletion
To limit the way that participants are deleted, add a delete tag to the EDML file. The following example shows a
participant that is an
href attribute of a link:
<a href="<%=MY_URL%>">Link Text</a>
When this attribute participant is deleted, the resulting tag is <a>Link Text</a> , which no longer appears as a link
in Dreamweaver. Deleting only the attribute value is preferred. Deletion is done by adding the following tag to the
participant EDML file:
<delete deleteType="innerOnly"/>