... you request the document /index .html via your web
browser, Apache will look for the file /home/httpd/htdocs/index .html
. If
index .html
contains an HREF to /some/file .html, you would have to ...
Note that Mason's templating capabilities aren't exactly taking center stage
in this example. You may ask why Mason is being used in this situation at
all. Indeed, without context, it's ... have done just this kind of thing in order to take advantage of
Mason's other features like dhandlers or to integrate the dynamically
generated image into an existing Mason site.
Apache::Status...
... thông tin bắt buộc đó chúng ta còn phải gửi các thông
tin phụ. Những thông tin phụ này người dùng người dùng không phải nhập. (các thông tin phụ đó dưới
đây sẽ được gạch chân)
Minh hoạ:
< ;HTML& gt;
<HEAD>
<meta ... <BR>
<input type="radio" name="GioiTinh" onMouseMove="window.status='Trong nam';">Nam </option>
<input type="radio" name="GioiTinh" ... đổi được.
Minh hoạ:
< ;HTML& gt;
<HEAD>
</HEAD>
<BODY>
<input type=button value=Xanh onclick="window.document.bgColor = 'blue'; ">
<input type =...
...
Insert a graphic
1.
In Notepad, open the Chesapeake Bay Retriever page, file name
chesapeake .html
.
2.
Create a new paragraph under the main heading.
3.
In the new paragraph, insert ... main section page 79
Add subsections to site 82
Insert a table for content and subsection links 82
Create subsection pages 84
Place tables within tables 88
Link to an external site using ... new windows 150
Validate form input 153
Validate form input 154
See how it works 154
Insert the validation script 155
Modify the <FORM> tag 156
Additional Resources 157
HTML...
... has been included in the HTML, either by
embedding or referencing, it can be linked to HTML elements to display the
underlying recordset by using DSO.
Using DSO-specific attributes
Individual ... Embedding XML Data inHTML
Practice: Binding HTML Elements to XML Data
In this practice, you will create an HTML file that displays data in an XML data
island by using DSO data binding. ... Object in Microsoft Internet Explorer 4, for
background information.
Presentation:
120 Minutes
Lab:
60 Minutes
Module 5: Embedding XML Data inHTML 27
Displaying XML Data Using Script...
... really show anything that
you couldn't do using standard server-side include (SSI) techniques. In fact,
the usage demonstrated in these examples is relatively uncommon in
building Mason sites, ... http://www.example.com/handshake .html from
your server, you should again see a random selection of either
Greetings, Earthlings or Greetings, Martians.
5
Assuming
you've gotten Mason installed properly and everything's ... shown in Example
1-10.
Example 1-10. handshake .html
requires at least Version 5.005 of Perl, though Version 5.6.1 is
recommended. Instructions for installing Perl are contained in the
INSTALL
...
... main body.
The <%init> block is typically used for doing things like checking
arguments, creating objects, or retrieving data from a database. The variables
created here are used in ... $component in the example.
In addition, component calls can take arguments (like width and admin in
the third example) just like a Perl subroutine internally, they actually are
subroutines.
How ... are three
valid escape flags, h for HTML entity escaping (i.e., > into > ), u for
URI escaping (i.e., > into %3E ), and n for no escaping. The HTML and URI
much like a URL, a component...
... concerning the currently executing chain of
components. It is treated in detail in Chapter 4
. Return.
4. Component objects are returned by several of the
HTML: :Mason::Request and HTML: :Mason::Interp ... know three ways to call c omponents: by using the inline
component call tag (<& &>), by using the $m->comp() method, or via a
URL. When using a component call tag, the called ...
request, before the <%init> block, but unlike in an <%init> block, the
variables declared in this block are in scope both in the component's main
body and in any subcomponents...
...
often no filtering is necessary.
Inspecting the Wrapping Chain
When Mason processes a request, it builds the wrapping chain and then
executes each component in the chain, starting with the topmost ... processing, though, because parsing HTML can give you a
stomach ache very quickly. In Chapter 5
you'll see how to use inheritance to
gain finer control over the production of the HTMLin ... start processing its child component, in this case
/welcome .html
. The /welcome .html component generates some output,
which gets inserted into the middle of /autohandler
and then finishes.
Control...
... rather than optimize your
code at the expense of increasing its complexity, thus making it less
maintainable.
Caching can also be a big win in providing scalability when you have a
bottleneck like ... discussed in
Chapter 3
.
•
call_next(arguments)
When the currently executing component is part of a wrapping chain,
this method will call the next component in the chain, passing it the
current ... certain size using an LRU algorithm. In addition, it is possible to
specify expiration times for stored data using a very flexible syntax.
For more information on Cache::Cache, simply install...
... available when using the
HTML: :Mason::ApacheHandler or HTML: :Mason::CGIHandler
classes. The latter class is covered in Chapter 9
.
•
cgi_object
This method is always available when using
HTML: :Mason::CGIHandler ... handle incoming
parameters by setting args_method to mod_perl, this object will
be an Apache::Request object; otherwise, it will be an Apache
object.
Incoming parameter handling is covered in ... Available Only When Using ApacheHandler
When you are using Mason under mod_perl with the
HTML: :Mason::ApacheHandler class, which is covered in Chapter 7
,
the Request object will contain several additional...
... autohandler example
using attributes instead of methods.
Example 5-7. autohandler
< ;html& gt;
main component and any of its subcomponents, including the main
component's <%init> section, ... request.
Now imagine another scenario, one in which the method needs to examine
the incoming arguments in order to generate its output. For instance, suppose
you request /view_user .html? id=2982, ... declare $id in an <%args> block or examine the
incoming %ARGS hash directly. An example using request_args()
follows:
<%method title>
<! this method is invoked in the autohandler...
... would be to insert a <%filter> block directly into the
source of the top_menu method. However, the method may be defined in
many different places; the whole point of using a method instead ... autohandler,
can inherit from a component of your choosing.
However, specifying an autohandler's inheritance explicitly can easily lead
to an infinite inheritance chain if you're ... some contortions in order to trick the wrapped portion
of the component into thinking that it is still in the original component. If we
had a component named bob .html
, as shown in the example...
... responsible for
coordinating the activities of the Compiler and Resolver, as well as creating
Request objects. Its main task involves receiving requests for components
and generating the resultant ... object
contains another object, the containing object will accept constructor
parameters intended for the contained object. For example, the Interpreter
object will accept parameters intended ... functionality. In an informal sense, we speak of
Release 1.10 as having made Mason more "pluggable."
By default, Mason creates a Lexer object in the
HTML: :Mason::Lexer class. By passing a...
... aren't
inheriting much from HTML: :Mason::Compiler , we still subclass it as
anything expecting a compiler will check that what it is given is a subclass
of HTML: :Mason::Compiler.
Of course, in ... component path by taking the requested URI and looking for
that in the database. If it doesn't exist, we will try appending the path info if
possible or just give up. Finally, we try the ... subclass that munges incoming strings into
Unicode, using the Encode module from CPAN.
• A CGIHandler subclass that performs the same argument-to-object
transformation seen in our example ApacheHandler...
... mouse click
•
A web page or an image loading
•
Mousing over a hot spot on the web page
•
Selecting an input box in an HTML form
•
Submitting an HTML form
•
A keystroke
... type="text /javascript& quot;>
document.getElementById("p1").innerHTML="New text!"; </script> </body> < /html& gt;
•
Changing an HTML Element Using Events: ... Test Links to Change Text in the Text box by moving the mouse over a link and
•
away from the link.
•
<SCRIPT LANGUAGE=" ;JavaScript1 .2"><! BEGIN HIDING
•
function setText(getText)...