User Guide

40 Chapter 2: Extending Dreamweaver

The following example shows the syntax for a tag entry:

<!ELEMENT htmlTag NAME="tagName ">

<!ATTLIST htmlTag

unsupportedAttribute1 !Error !msg="The unsupportedAttribute1

attribute of the htmlTag tag is not supported.Try using

supportedAttribute1 for a similar effect."

supportedAttribute1

supportedAttribute2 (validValue1 |validValue2 |validValue3 )

unsupportedAttribute2 !Error !msg="Don’t ever use the

unsupportedAttribute2 attribute of the htmlTag tag!"

The elements shown in this syntax are defined as follows:

• htmlTag is the tag as it appears in an HTML document.

• tagName is an explanatory name for the tag; for example, the name for the HR tag is

“Horizontal Rule.” The

NAME attribute is optional. If specified, tagName is used in error

messages; if you do not supply a name,

htmlTag is used in error messages.

• unsupportedAttribute is an attribute that is not supported. Any tags or attributes not

specifically mentioned as supported attributes are assumed to be unsupported. Specify

unsupported tags or attributes only when you want to create a custom error message.

• supportedAttribute is an attribute that is supported by htmlTag. Only tags listed without

!Error designation are considered to be supported by the browser.

• validValue indicates a value that is supported by the attribute.

The following example shows an entry for the

APPLET tag that would be accurate for Netscape

Navigator 3.0:

<!ELEMENT APPLET Name="Java Applet">

<!ATTLIST APPLET

absbottom |baseline |texttop )

Alt