Slide 22 : 42

Ad hoc abstraction

In order to control the complexity of a programmatic WWW document it is often useful to introduce ad hoc abstractions

URL abstractions Document with lots of full URLs to the same site are difficult to maintains

An example with URL abstractions

An example with URL abstractions

The example without URL abstractions

The example without URL abstractions

Table abstractions Tables are complicated and rich constructs in HTML. It is useful capture and abstract typical tables as LAML functions

An example with a table abstraction

An example with a table abstraction

The example without table abstractions

The example without table abstractions

Signature abstraction Most of my documents contains my name, email address and WWW home page address

An example with signature abstraction

An example with signature abstraction

The example without signature abstractions

The example without signature abstractions

URL abstraction HTML page Table abstraction HTML page Signature abstraction HTML page