- Chip Template Engine
Infobox Software
name = Chip Template Engine
developer = Mike A. Leonetti
latest_release_version = 0.31
latest_release_date = 16th August 2006
genre =Template engine
license =LGPL
website = [http://code.divineaspirations.net/chip code.divineaspirations.net/chip]Chip is a template engine written for use with both
PHP andPerl . It is designed to provide both the programmer with a flexible toolset for quickHTML parsing and output, and the designer with a simple parsing control syntax. Instead of completely separating thebusiness logic end of the code from theHTML portion, Chip allows the design end to utilize a tag-like command set to controlHTML code output.With
HTML code control tags that more resemble realHTML , Chip "GUI" files can be syntax highlighted with the same parameters as HTML.GUI files, or rather the files containing the
HTML , contain more than one template. Templates are created an included in a "new" tag, and can be linked or embedded in each other to create dependencies. In this way a single GUI file can be used either for an entire section (i.e. all pages associated with a shopping cart) or just a single page (i.e. a homepage). Each template has its own separate cache, to allow for particular code flow.Looping in Chip can be managed as the programmer sees fit. Since the
HTML code is split up into separate templates and each template cached, it is possible to parse the same template over and over again with different variables to produce a list-like output.The second option is to use the built in "foreach" tag and to set only one GUI variable as an array. The rest will be handled by the GUI code.
How it works
Chip uses
Perl regular expressions to parse the GUI template creating another file containing the parsedPHP /Perl output that is then included into the currently running script. However, since a single GUI file needs to be parsed once, if the related GUI file is unmodified itsPHP /Perl result will be recycled. This allows for sometimes large speed-ups.After the file is included, actual
HTML code is not parsed, nor are any of the variables replaced until "parse_template(...)" or "output_template(...)" are called.In essence, each template is in effect like a C function or a Perl sub-routine. None of the code contained in the function or sub-routine is executed until the function is called. Templates behave in the same manner.
Coding examples
"main.gui"
{$title}</head><body> <table width="100%"><tr><td style="text-align: left;"> <parser:foreach array="$menu" value="$menu_item"> {$menu_item ['text'] } </parser:foreach> </td><td style="text-align: left;"></parser:new><p><parser:new name="footer"> </td></tr></table></body></html></parser:new></div></blockquote>"cart.gui"<blockquote style="border: thin solid rgb(224, 224, 224); padding: 3px 15px; float: none;"><div><parser:new name="show_cart"> <parser:link name="header" src="main.gui"> <table><tr><td style="text-align: left;">Name</td><td style="text-align: left;">Quantity</td><td style="text-align: left;">Total Price</td></tr> <parser:new name="cart_item"> <tr> <td style="text-align: left;">{$item ['name'] }</td> <td style="text-align: left;">{$item ['qty'] }</td> <td style="text-align: left;">{$item ['price'] }</td> </tr> </parser:new> </table> <parser:link name="footer"></parser:new></div></blockquote><p>Note in the example above "main.gui" has two templates in it.<p>Some set-up and looping examples. First the "foreach" loop method. Let's start with PHP also.<blockquote style="border: thin solid rgb(224, 224, 224); padding: 3px 15px; float: none;"><div>require_once( "chip_gui.php" );<p>$gui = new Chip;<p>$gui->gui_directory = "gui/";$gui->php_directory = "php/";<p>// .gui is optional$gui->parse_file( "main" );<p>$menu = array( array( "link"=>"http://www.page.com/main.php", "text"=>"Main" ), array( "link"=>"http://www.page.com/cart.php", "text"=>"Cart" ) );$gui->variables ['menu'] = $menu;</div></blockquote><p>Now that the main template variables are set up, the cart gets parsed next using the second loop option that is not "foreach".<blockquote style="border: thin solid rgb(224, 224, 224); padding: 3px 15px; float: none;"><div>$gui->parse_file( "cart" );<p>// Get the cart from the DB$query_result = mysql_query( "SELECT name, qty, price FROM carts WHERE customer_id={$customer_id}" );<p>while( $row = mysql_fetch_assoc( $query_result ) ){ // Set the price to the total price $row ['price'] = $row ['price'] * $row ['qty'] ; // Let the $gui->variables ['item'] array reflect $row $gui->variables ['item'] = $row;<p> // Parse the template appending the newly parsed data to the end of the cache $gui->parse_template( "cart_item" );}<p>mysql_free_result( $query_result );<p>// Show the template, the rest of the linked templates will follow$gui->output_template( "show_cart" );</div></blockquote><p>The same GUI file can be parsed with Perl using a little bit of perl code.<p><blockquote style="border: thin solid rgb(224, 224, 224); padding: 3px 15px; float: none;"><div>require "chip_gui.pm";<p>my $gui = new Chip;<p>$gui->{'gui_directory'} = "gui/";$gui->{'pl_directory'} = "pl/";<p># .gui is optional$gui->parse_file( "main" );<p>my $menu = { { "link"=>"http://www.page.com/main.php", "text"=>"Main" }, { "link"=>"http://www.page.com/cart.php", "text"=>"Cart" } };$gui->{'variables'}->{'menu'} = $menu;</div></blockquote><p>Onto the cart processing file.<blockquote style="border: thin solid rgb(224, 224, 224); padding: 3px 15px; float: none;"><div>$gui->parse_file( "cart" );<p># Get the cart from the DB using DBImy $query_result = $mysql_dbi->prepare( "SELECT name, qty, price FROM carts WHERE customer_id={$customer_id}" );<p>while( my $row = $query_result->fetchrow_hashref() ){ # Set the price to the total price $row->{'price'} = $row->{'price'} * $row->{'qty'}; # Let the $gui->variables ['item'] array reflect $row $gui->{'variables'}->{'item'} = $row;<p> # Parse the template appending the newly parsed data to the end of the cache $gui->parse_template( "cart_item" );}<p>// Show the template, the rest of the linked templates will follow$gui->output_template( "show_cart" );</div></blockquote><p><strong>ee also</strong><p>* <r>Smarty</r>, the more popular template engine for PHP<br>* <p><strong>External links</strong><p>* [<small><i>http://code.divineaspirations.net/chip Chip Home Page</i></small>] <br>* [<small><i>http://code.divineaspirations.net/chip/chip_download.html Download</i></small>] <br>* [<small><i>http://code.divineaspirations.net/chip/chip_guide.html Comprehensive Guide</i></small>] </dd> <br /> <p id="TerminSourceInfo" class="src"> <em><span itemprop="source">Wikimedia Foundation</span>. <span itemprop="source-date">2010</span>.</em> </p> </div> </dl> </div> <div style="padding:5px 0px;"> <a href="https://games.academic.ru" style="color: green; font-size: 16px; margin-right:10px"><b>Игры ⚽</b></a> <b><a title='онлайн-сервис помощи студентам' href='https://homework.academic.ru/?type_id=11'>Нужна курсовая?</a></b></div> <div id="socialBar_h"></div> <ul class="post-nav" id="TerminsNavigationBar"> <li class="prev"><a href="https://en-academic.com/dic.nsf/enwiki/3391422" title="Qooxdoo">Qooxdoo</a></li> <li class="next"><a href="https://en-academic.com/dic.nsf/enwiki/3391427" title="Kalvanin Kadhali">Kalvanin Kadhali</a></li> </ul> <div class="other-info"> <div class="holder"> <h3 class="dictionary">Look at other dictionaries:</h3> <ul class="terms-list"> <li><p><strong><a href="//en-academic.com/dic.nsf/enwiki/960426">Template engine (web)</a></strong> — A (web) template engine is software that is designed to process web templates and content information to produce output web documents. 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