Adobe Extending Dreamweaver CS4 Manuel d'utilisateur télécharger pdf (Page 290)

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EXTENDING DREAMWEAVER CS4

Server behaviors

Optional search patterns

Sometimes you want to identify a participant even if some parameters are not found. The participant stores some

optional information such as a telephone number. For such an example, you could use the following ASP code:

<% //address block

LNAME = "joe";

FNAME = "smith";

PHONE = "123-4567";

You could use the following search patterns:

<quickSearch>address</quickSearch>

<searchPattern paramNames="lname">/LNAME\s*=\s*"([^\r\n]*)"/i</searchPattern>

<searchPattern paramNames="fname">/FNAME\s*=\s*"([^\r\n]*)"/i</searchPattern>

<searchPattern paramNames="phone">/PHONE\s*=\s*"([^\r\n]*)"/i</searchPattern>

</searchPatterns>

In the previous example, the telephone number must be specified. However, you can make the telephone number

optional, by adding the

isOptional attribute, as shown in the following example:

<quickSearch>address</quickSearch>

<searchPattern paramNames="lname">/LNAME\s*=\s*"([^\r\n]*)"/i</searchPattern>

<searchPattern paramNames="fname">/FNAME\s*=\s*"([^\r\n]*)"/i</searchPattern>

<searchPattern paramNames="phone" isOptional="true">/PHONE\s*=\s*"([^\r\n]*)"/i¬

</searchPattern>

</searchPatterns>

Now the participant is recognized, even if the telephone number is not found.

How participants are matched

If a server behavior has more than one participant, the participants must be identified in the user document and

matched. If the user applies multiple instances of the server behavior to a document, each group of participants must

be matched accordingly. To ensure that participants are matched correctly, change or add parameters and construct

participants so they can be uniquely identified.

Matching requires some rules. Participants are matched when all parameters with the same name have the same value.

Above and below the

html tag, there can be only one instance of a participant with a given set of parameter values.

Within the

html.../html tags, Dreamwaever matches participants by their position relative to the selection or to

common nodes that are used for insertion.

Participants without parameters are automatically matched, as shown in the following example of a server behavior

with group file:

</groupParticipants>

</group>

The following example inserts two simple participants above the html tag:

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Adobe Extending Dreamweaver CS4 Manuel d'utilisateur Page 290