Adobe 38040334 Extending Dreamweaver - Page 290

Deleting server behaviors

Page 290 highlights

DREAMWEAVER CS3 284 Extending Dreamweaver The search patterns fail because they are looking for a parenthesis after the EOF parameter. To make the search patterns more forgiving, you can shorten them by splitting them up, as shown in the following example: Response.Write /(\w+)\.EOF/ /if\s*\([^\r\n]*\)\s*Response\.Redirect\("([^\r\n]*)"/i 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: /(\b)\w+(\.EOF)/\ /(Response\.Redirect\(")[^\r\n]*(")/i 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 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 are shared by other server behaviors. 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: After deleting the attribute, only form remains. Using delete flags to limit participant deletion There might be cases where you want to limit the way that participants are deleted. This can be achieved by adding a delete tag to the EDML file. The following example shows a participant that is an href attribute of a link: Link Text When this attribute participant is deleted, the resulting tag is Link Text, which no longer appears as a link in Dreamweaver. It might be preferable to delete only the attribute value, which is done by adding the following tag to the participant EDML file: Another approach is to remove the entire tag when the attribute is deleted by typing . The resulting text is Link Text.

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DREAMWEAVER CS3
Extending Dreamweaver
284
The search patterns fail because they are looking for a parenthesis after the
EOF
parameter. To make the search
patterns more forgiving, you can shorten them by splitting them up, as shown in the following example:
<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 subexpres-
sions is replaced with the new value for the parameter.
Deleting server behaviors
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
are shared by other server behaviors. 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
There might be cases where you want to limit the way that partic-
ipants are deleted. This can be achieved by adding 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. It might be preferable to delete only the attribute value, which is done by adding the following tag
to the participant EDML file:
<delete deleteType="innerOnly"/>
Another approach is to remove the entire tag when the attribute is deleted by typing
<delete
deleteType="tagOnly"/>
. The resulting text is
Link Text
.