chapter 3 programming with regular expressions

Chapter 3: Programming with Windows Forms pps

Ngày tải lên : 05/07/2014, 21:20

... controls to Forms (runtime) Using Complex Controls Creating GUI Components Working with Menu Creating MDI applications with Windows Forms Deploying Windows Forms Applications What is Windows Forms ... main menu and individual items are MenuItem objects ContextMenu component is used to provide users with an easily accessible Pop-up menus that appear when you right-click a form or control MDI applications...

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Chapter 3 working with financial statements

Ngày tải lên : 06/03/2015, 15:32

... major categories of ratios and how you compute specific ratios within each category? • What are some of the problems associated with financial statement analysis? 3-31 Ethics Issues • Should ... through time – Internal and external uses • Peer Group Analysis – Compare to similar companies or within industries – SIC and NAICS codes 3-25 Real World Example - I • Ratios are figured using financial ... the company grows • They are also useful for comparing companies of different sizes, particularly within the same industry 3-9 Ratio Analysis • Ratios allow for better comparison through time or...

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Web Client Programming with Perl-Chapter 3: Learning HTTP- P3

Ngày tải lên : 17/10/2013, 19:15

... client might also use a Content-type header with the POST or PUT method Most commonly, with many CGI applications, clients use a POST or PUT request with information in the entity-body, and supply ... Pragma header was used with the value no-cache to tell caching proxies and clients not to cache the document Under HTTP 1.1, the Cache-Control header supplants Pragma, with several caching directives ... can use the IfModified-Since header with the GET method When using this option, the client requests the server to send the requested information associated with the URL only if it has been modified...

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Tài liệu Web Client Programming with Perl-Chapter 3: Learning HTTP- P1 pdf

Ngày tải lên : 26/01/2014, 07:20

... server will reply with a response line and headers, but no entity-body The headers returned by the server with the HEAD method should be exactly the same as the headers returned with a GET request ... practice, POST is used with CGI programs that happen to interface with other resources like network services and command line programs In the future, POST may be directly interfaced with a wider variety ... are discussed later in this chapter The server responds as follows: The server replies with a status line with the following three fields: the HTTP version, a status code, and description of the...

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Tài liệu Web Client Programming with Perl-Chapter 3: Learning HTTP- P2 pdf

Ngày tải lên : 26/01/2014, 07:20

... handle with the Accept header and a server could now declare its entity-body's media type with the Content-type header This allowed the client to know what kind of data it was receiving and deal with ... request Either something was wrong with the document, or something was wrong with the request itself By far, the server status code that web users are most familiar with is 404 (Not Found), the code ... Range) Occasionally, the error might be with the server itself or, more commonly, with the CGI portion of the server CGI programmers are painfully familiar with the 500 (Internal Server Error) code,...

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Creating Applications with Mozilla-Chapter 3. XUL Elements and Features- P2

Ngày tải lên : 17/10/2013, 19:15

... markup in Example 3-9 is the rules for the nesting of elements within a listbox structure The number of columns needs to be set, each with a element, and all have to be wrapped in a ... cell within an to the column in the tree and is optional Tying the concepts presented in this section together allows us to present Example 3-11, which shows a multilevel tree with ... by elements in Mozilla's XPFE toolkit In this section, we look at list boxes, trees, and grids With the exception of the tree, these elements are not limited in regard to the content they can...

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Creating Applications with Mozilla-Chapter 3. XUL Elements and Features- P3

Ngày tải lên : 20/10/2013, 09:15

... displayed is directly associated with the element using the src attribute You can also use list-style-image, which is a CSS2 property used to associate an image with an element To this, you need ... groups are useful UI controls that present the user with a choice of options in XUL In HTML, radio choices are represented by the element with the type attribute set to the value of radio, ... connect the tree view to the front end This connection ensures that the correct tree is associated with the view getCellText (row,column) Returns the text of a particular cell, or an empty string...

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Creating Applications with Mozilla-Chapter 3. XUL Elements and Features- P4

Ngày tải lên : 20/10/2013, 09:15

... "broadcasting" element That broadcasting element can be an actual or a regular element that broadcasts its state with special attributes A common example of broadcasting is the disabling of ... Table 3-3 Button types Type Usage Description Menu integrated into the Menu type= "menu" button with small arrow icon Menu appears distinct Dual Menu type= "menu-button" from the button, in separate ... contextsensitive help Taking one of the button types in Table 3-3 as a mini-case study, you could use a button with the type menu-button to display more than one option at a time The default orientation for...

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Web Client Programming with Perl-Chapter 4: The Socket Library- P1

Ngày tải lên : 20/10/2013, 10:15

... connection associated with that socket on a specified remote host and port The server uses the accept( ) call to intercept the incoming connection and initiate communication with the client Now ... applications must associate these characteristics with a newly created socket For example, in the following line, the SH file handle is associated with the newly created socket PF_INET indicates ... assigns $! with an error message Use die( ) after connect( ) to stop the program and report any errors Writing Data to a Network Connection To write to the file handle associated with the open...

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Web Client Programming with Perl-Chapter 4: The Socket Library- P2

Ngày tải lên : 20/10/2013, 10:15

... use strict; use Socket; # include Socket module require 'tcp.pl'; # file with Open_TCP routine require 'web.pl'; # file with parseURL routine use vars qw($opt_h $opt_H $opt_r $opt_d); use Getopt::Std; ... on to the web server you specify This allows you to things like HTML form postings with POST, or a file upload with PUT, and selectively look at the results At this point, it's really all up to ... use strict; use Socket; # include Socket module require 'tcp.pl'; # file with Open_TCP routine require 'web.pl'; # file with parseURL routine use vars qw($opt_h $opt_i $opt_l); use Getopt::Std;...

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Creating Applications with Mozilla-Chapter 3. XUL Elements and Features- P5

Ngày tải lên : 24/10/2013, 08:15

... controls used to create a simple three-tab control with content elements on each panel The tabs are associated with the appropriate panels by their order within the containing element 3.9.2.2 Status ... elements within In this example, the icons appear to the left and right of the bar, while the flexed text panel takes up the remaining space 3.9.3 Additional Box Features Boxes work in concert with ... specified as a numerical value, and all flex is relative For example, a child with a flex of is twice as flexible as a child with a flex of 1, as Example 3-20 shows The flex attribute is invaluable...

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Creating Applications with Mozilla-Chapter 3. XUL Elements and Features- P6

Ngày tải lên : 24/10/2013, 08:15

... you would in a regular web page, but with the addition of the namespace you declared: Go to Help page When you use a page with code in your ... in a base file: When an overlay is read with the content below, the previous line is replaced with that content: Overlay files are XUL files with a xul extension The content within that file has to be contained in an element, which is the root...

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Web Client Programming with Perl-Chapter 5: The LWP Library- P1

Ngày tải lên : 24/10/2013, 08:15

... useful routines within the LWP library  At the end of the chapter, we'll present some examples that glue together the different components of LWP Some Simple Examples LWP is distributed with a very ... in the for loop: for (@{ $parsed_html->extract_links( ) }) { and dereference the array within the list with: $link = $_->[0]; After the deferencing, we have direct access to the hyperlink's location, ... showlink printed out the hyperlinks exactly as they appear within the HTML But in some cases, you want to see the link as an absolute URL, with the full glory of a URL's scheme, hostname, and path...

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Web Client Programming with Perl-Chapter 5: The LWP Library- P2

Ngày tải lên : 24/10/2013, 08:15

... URI with certain characters replaced with % followed by two hexadecimal digits The first parameter can be a text string, like "http://www.ora.com", or an object of type URI::URL When invoked without ... invoked with no parameters, this returns the user for the URL defined in the object When invoked with a parameter, the object's user is assigned to that value $url->password( ) When invoked with ... invoked with a parameter, the object's password is assigned to that value $url->host( ) When invoked with no parameters, this returns the hostname in the URL defined in the object When invoked with...

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Web Client Programming with Perl-Chapter 6: Example LWP Programs-P1

Ngày tải lên : 28/10/2013, 15:15

... added to the URI::URL object with a call to $self->{'url'}query( ) A new HTTP::Request( ) object is made with the URI::URL object as a parameter The request is issued with the call to $self->{'robot'}->request( ... $body); } Within simple_get( ), an LWP::UserAgent object is created, and a proxy server is defined for the object if one was specified to simple_get( ) A new HTTP::Request object is created with the ... more easily be said with something like this: if ($response->code!= RC_OK) { return; } if ($response->content_type !~ m@text/html@) { return; } In the process of finding URLs without the help of...

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Web Client Programming with Perl-Chapter 6: Example LWP Programs-P2

Ngày tải lên : 28/10/2013, 15:15

... 1; } my $root_url=shift @ARGV; # if there's no URL to start with, tell the user unless ($root_url) { print "Error: need URL to start with\ n"; exit(-1); } # if no "output" options are selected, ... public interface The bad( ) method returns an associative array of any URLs that encountered errors Within the associative array, one uses the URL as a key, and the key value is a \n delimited error ... contains the content-type for the URL And finally, the ref( ) method is an associative array of URLs with values of referring URLs, delimited by \n So if the URL hash of "www.ora.com" has a value of...

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Web Client Programming with Perl-Chapter 7: Graphical Examples with Perl/Tk- P1

Ngày tải lên : 07/11/2013, 09:15

... this simple program that will just prompt for the word and go look it up without all that extra hassle Anyone familiar with the xwebster client for the X Window System will find xword to be vaguely ... place We want lots of room to type, so we set it up with a default width of 40 Also note that we are storing anything that's been entered with the Entry widget in a global variable called $word ... setting it up Since the purpose of this chapter is to show some examples using Tk and to interact with the WWW, we won't be going into much more detail about what Tk does and why Some places you...

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Web Client Programming with Perl-Chapter 7: Graphical Examples with Perl/Tk- P2

Ngày tải lên : 07/11/2013, 09:15

... we need to delimit it from the prior text (which we insert into our text widget with the flush_text( ) function) with a few returns Note that flush_text( ) takes the same arguments as any of our ... to call our function, do_search( ), with the URL we extracted from the HTML tag Then we insert the text for the link into the text widget, and associate it with the tag we just built Figure 7-2 ... every few minutes For this example, we'll interact with the Federal Express tracking page When you ship a package via FedEx, they keep track of it with a shipping number (also called an airbill number)...

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Web Client Programming with Perl-Chapter 7: Graphical Examples with Perl/Tk- P3

Ngày tải lên : 07/11/2013, 09:15

... letter, it would scroll to the first entry starting with that letter Or you could put an additional entry, and search for any word starting with those characters: my $response_f = $mw->Frame; ... today for the date field The FedEx web page expects it in the form of "DayMonthYear", and digits with only one number require a leading zero The string returned from localtime( ) gives us the correct ... The loop_query( ) subroutine gets called when the Loop button is pressed We query the web site with the information entered, then set up Tk to loop again in $query_interval minutes To let the...

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Tài liệu Embedding Perl in HTML with Mason Chapter 3: Special Components: Dhandlers and Autohandlers pdf

Ngày tải lên : 14/12/2013, 12:15

... site that serves news articles, with articles identified by the date they were written Normally articles get published once a day, but once in a while there's a day without an article published ... of the URL will be placed in $m>dhandler_arg On the other hand, if /path/to/missing exists as a regular Mason component instead of as a directory, this component will be invoked by Mason and the ... PerlHandler HTML::Mason::ApacheHandler This directive has a rather strange interaction with Mason's dhandler mechanism If you have a dhandler at /home/httpd/html/dhandler on the filesystem,...

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