shorten

Written by readers of the earlier documentation sites, kept as they were.

1. Beware of xml :)

   P. Renaud · 03/01/2007 02:46 pm

   Shorten is a "as is" operator, and will shorten crudely your xml text, counting tags as simple text, and producing seemingly strange output.
   A solution is to use the Php strip_tags operator, as follows :

   {def $xml_content=$node.data_map.champ_xml.data_text}
   {def $text_content=$xml_content|strip_tags()}
   {$text_content|shorten(100)}

   In order to be able to use strip_tags, you have to add it to authorized eZ template operators. Edit the template.ini.append.php file of your siteaccess (create it if it does not exist), and add

   [PHP]
   PHPOperatorList[strip_tags]=strip_tags

   Forum links :
   http://ez.no/community/forum/setu...g_text_from_summarizing_ezxmltext__1
   http://ez.no/community/forum/deve...e_item_shorten_100_is_not_working__1

2. A more flexible way

   Xavier · 03/10/2007 10:46 am

   Your solution has a major problem: it destroys all the new lines and screws the layout.
   This extension allows to shorten the xml result, even while keeping all (or a selection of) xml tags.
   http://projects.ez.no/xmlwash
   as an added bonus, it offers a bigger security, no matter your ez config.

3. shorten on a word boundary

   Betsy Gamrat · 09/14/2007 04:16 pm

   Code snippet to break on a word boundary.
   Basic strategy is to truncate the string, then add characters until you encounter a space, or run out of string.

   {def $sub=$node.object.data_map.short_description.content.xml_data
           $subsub=''
           $len=count($sub)
           $limit=598
           $chr=''
           $i=0}
   {if ge($len,$limit)}
           {set $i=$limit|sub(50)}
           {set $subsub=$sub|shorten($i,'')}
           {set $chr=$sub|extract($i,1)}
           {while and(ne($chr,' '),lt($i,$limit))}
                   {set $subsub=$subsub|concat($chr)}
                   {set $i=$i|inc}
                   {set $chr=$sub|extract($i,1)}
           {/while}
           {set $subsub=$subsub|concat(' ...')}
   {/if}