* Name: highlight_char
* Date: March 8, 2004
* Purpose: highlight first character of the input string with css class
* Input:
* - string = string whose first char should be wrapped in the given class
*
* Examples:
*
* {$xxx|highlight_char:big_font}
* Output:
* xxx
*
* {$xxx|highlight_char:none:b} {* you cannot leave a param empty, so none is no class *}
* Output:
* xxx
*
*
* @author Mark Hewitt
* @version 1.0
* @param string $string Text to modify
* @param string $css_class CSS classname to put in span tags, use 'none' to ignore
* @param string $tag_name (Optional) Tag to wrap first char in
* @param Smarty
* @return string|null
*/
function smarty_modifier_highlight_char($string,$css_class,$tag_name="span")
{
// strip whitespace off the front of the string, and make sure
// there are characters in the string, we only return valid characters...
if ( ($s = trim($string)) != '' )
{
$html = "<$tag_name";
if ( $css_class != 'none' ) $html .= ' class="'.$css_class.'"';
$html .= '>'.substr($s,0,1)."".substr($s,1);
return $html;
}
else
{
return '';
}
}