Substitution Variables

You can declare substitution Adelia variables [::VARNAME] anywhere in the HTML source.

These variables let you define dynamically any value for a given attribute.

The table below shows the syntax for declaring and using substitution Adelia variables:

Variable [::VARNAME]	Declaration	Use
attribute= "::VARNAME"	ALPHA(32) variable with VARNAME guide word.	for a dynamic attribute value.
attribute= "::VARNAME(Lg)"	ALPHA(Lg) variable with VARNAME guide word.	for a dynamic attribute value.
::VARNAME= "value"	ALPHA(32) variable with VARNAME guide word.	for a dynamic attribute name.

The HTML page is saved in the xHTML format. The verification carried out at the backup stage obeys the xHTML constraints. Thus, a value must be assigned to each attribute.

As a result, you cannot write the ::VARNAME string alone inside a tag. Instead, you must write: ::VARNAME= "value" or Attribute= ::VARNAME.

Note: The same variable can be used in several places in the HTML page, except variables which are used in a list.

Example:

The HTML code lets you add an ALPHA(32) variable with a VARCOLOR guide word in data environment of the Adelia Web program.

Then, before the web page is displayed, the program can assign the variable a new value, and, as a result, display the text in another color.

If necessary, you can specify the size of the ALPHA variable to be declared by using the following syntax:

::MDVAR(Length)

↑ Top of page