display html entities in textarea

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... Embedding XML Data in HTML 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. ... 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 ... Object in Microsoft Internet Explorer 4, for background information. Presentation: 120 Minutes Lab: 60 Minutes Module 5: Embedding XML Data in HTML 27 Displaying XML Data Using Script...

Ngày tải lên: 10/12/2013, 16:16

... 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 ... controlling code to several different templates, so that designers can create different look-and-feel templates without involving programmers. HTML: :Template is generally very fast at filling in HTML...

Ngày tải lên: 14/12/2013, 12:15

... %>< /textarea& gt; Mason uses HTML: :Entities internally but does not provide a way to tell HTML: :Entities not to escape certain characters. By default, HTML: :Entities assumes that you are using ... $foo_data %>< /textarea& gt; If $foo_data contains the string < /textarea& gt;, your HTML will be broken. Guard against this possibility by escaping the output: < ;textarea name="foo"><% ... 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...

Ngày tải lên: 14/12/2013, 12:15

... 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 ... 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 ... the component is loaded into memory. It is executed before any other block (including an <%init> block). Any variables declared here remain in existence (and in scope) until the component...

Ngày tải lên: 14/12/2013, 12:15

... 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 HTML in ... 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...

Ngày tải lên: 14/12/2013, 12:15

... 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 ... the components in the wrapping chain that have yet to be executed. They are returned in order based on their position in the wrapping chain. Dhandler-Related Methods Certain request object ... multiline error with trace information, a single-line error with tab-separated fields (suitable for writing to a log), and a fancy HTML format. Each of these methods corresponds to a method in...

Ngày tải lên: 14/12/2013, 12:15

... 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 ... but for methods instead of subcomponents. • title Returns a printable string identifying this component. It is intended to uniquely identify a component within a given interpreter although ... 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...

Ngày tải lên: 14/12/2013, 12:15

... 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...

Ngày tải lên: 14/12/2013, 12:15

... 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 ... the indicated component, first in mine, then in shared if none is found in mine. An Advanced Inheritance Example An example can help showcase several of the topics we've discussed in this ... 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 not careful. Suppose...

Ngày tải lên: 14/12/2013, 12:15

... 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...

Ngày tải lên: 14/12/2013, 12:15

... 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...

Ngày tải lên: 14/12/2013, 12:15