Since Perl contains powerful pattern-matching operators and string
manipulation functions, it is very simple to decode form information.
Unfortunately, this process is not as easy when dealing with other
high-level languages, as most of them lack these kinds of operators.
However, there are various libraries of functions on the Internet that
make the decoding process easier, as well as the uncgi program.
This article takes a look at the facilities provided by former versions
of the JSP specification for writing custom tags. As you'll see
throughout the article, these previous methods, now called classic
tags, provide more flexibility than current methods, and for this
reason they're still useful in some scenarios. You'll also see how
classic tags can take advantage of some of the new features that are
now a part of the JSP 2.0 specification, including how custom tags can
now support dynamic attributes.
Whether your content
is academic or commercial in nature, no professionally developed website would be complete
without the ability to deliver content as a PDF (Portable Document Format).
Shelves are a powerful tool; they allow scripts to throw Python objects
on a keyed-access file and load them back later in a single step. They
aren't quite a full-blown database system, though; objects (records)
are accessed with a single key, and there is no notion of SQL queries.
It's as if shelves were a database with a single index and no other
query-processing support.
Once you've optimized
your hardware, your database, and Apache, you can concentrate on tuning your actual code. The best
preparation you can do to help yourself at this point is to select and adhere
to a consistent coding
standard. The less time you spend trying to interpret what you have written,
the more time you can spend
looking at other tricks to improve its efficiency.
Installing and configuring mod_auth_mysql involves a few steps, the first of
which is to create the necessary database structures to hold the user data.
Start by loading up your favorite MySQL client, and creating the database. For
example:
