MACROMEDIA DREAMWEAVER 8-DREAMWEAVER API Manual do Utilizador descarregar pdf (Página 24)

For example, ASP files contain—in addition to regular HTML—ASP code for the server to

interpret. ASP code looks almost like an HTML tag, but is marked by a pair of delimiters: it

begins with

<% and ends with %>. The Dreamweaver Configuration/ThirdPartyTags folder

contains a file named Tags.xml, which describes the format of various third-party tags, including

ASP code, and defines how Dreamweaver displays that code. Because of the way ASP code is

specified in Tags.xml, Dreamweaver doesn’t try to interpret anything between the delimiters;

instead, in the Document window’s Design view, it simply displays an icon indicating ASP code.

You can define your own tag database files that define how Dreamweaver reads and displays your

tags. Create a new tag database file for each set of tags, to tell Dreamweaver how to display the tags.

Note: This section explains how to define the way Dreamweaver displays a custom tag, but doesn’t describe

how to provide a way to edit the content or properties of a custom tag. For information on how to create a

Property inspector to inspect and change the properties of a custom tag, see Extending Dreamweaver (Help >

Extending Dreamweaver).

Each tag database file defines the name, type, content model, rendering scheme, and icon for one

or more custom tags. You can create any number of tag database files, but all of them must reside

in the Configuration/ThirdPartyTags folder to be read and processed by Dreamweaver. Tag

database files have the file extension .xml.

Tip: If you are working on several different unrelated sites at once (for example, as a freelance developer), you can

put all the tag specifications for a particular site in one file. Then simply include that tag database file with the custom

icons and Property inspectors that you hand over to the people who will maintain the site.

You define a tag specification with an XML tag called tagspec. For example, the following code

describes the specification for a tag named

happy:

<tagspec tag_name="happy" tag_type="nonempty" render_contents="false"

content_model="marker_model" icon="happy.gif" icon_width="18"

icon_height="18"></tagspec>

You can define two different kinds of tags using tagspec: normal HTML-style tags and string-

delimited tags. String-delimited tags start with one string and end with another string; they’re like

empty HTML tags (such as

img) in that they don’t surround content and don’t have closing tags.

The

happy tag shown above is a normal HTML-style tag; it starts with an opening <happy> tag,

contains data between opening and closing tags, and ends with a closing

</happy> tag. (If the tag

were a string-delimited tag, the tag specification would include the

start_string and

end_string attributes.) An ASP tag is a string-delimited tag; it starts with the string <% and ends

with the string

%>, and it has no closing tag.

The following information describes the attributes and valid values for the

tagspec tag. Attributes

marked with an asterisk (*) are ignored for string-delimited tags. Optional attributes are marked in

the attribute lists with braces (

{}); all attributes not marked with braces are required.

Description

Provides information about a third-party tag.

Attributes

tag_name, {tag_type}, {render_contents}, {content_model}, {start_string},

{end_string}, {detect_in_attribute}, {parse_attributes}, icon, icon_width,

icon_height, {equivalent_tag}, {is_visual}, {server_model}

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