/**
 * Smarty trimwhitespace outputfilter plugin
 *
 * File:     outputfilter.trimwhitespace.php<br>
 * Type:     outputfilter<br>
 * Name:     trimwhitespace<br>
 * Date:     Jan 25, 2003<br>
 * Purpose:  trim leading white space and blank lines from
 *           template source after it gets interpreted, cleaning
 *           up code and saving bandwidth. Does not affect
 *           <<PRE>></PRE> and <SCRIPT></SCRIPT> blocks.<br>
 * Install:  Drop into the plugin directory, call
 *           <code>$smarty->load_filter('output','trimwhitespace');</code>
 *           from application.
 * @author   Monte Ohrt <monte at ohrt dot com>
 * @author Contributions from Lars Noschinski <*****@*****.**>
 * @version  1.3
 * @param string $source input string
 * @param object &$smarty Smarty object
 * @return string filtered output
 */
function smarty_outputfilter_trimwhitespace($source, $smarty)
{
    // Pull out the script blocks
    preg_match_all("!<script[^>]*?>.*?</script>!is", $source, $match);
    $_script_blocks = $match[0];
    $source = preg_replace("!<script[^>]*?>.*?</script>!is", '@@@SMARTY:TRIM:SCRIPT@@@', $source);
    // Pull out the pre blocks
    preg_match_all("!<pre[^>]*?>.*?</pre>!is", $source, $match);
    $_pre_blocks = $match[0];
    $source = preg_replace("!<pre[^>]*?>.*?</pre>!is", '@@@SMARTY:TRIM:PRE@@@', $source);
    // Pull out the textarea blocks
    preg_match_all("!<textarea[^>]*?>.*?</textarea>!is", $source, $match);
    $_textarea_blocks = $match[0];
    $source = preg_replace("!<textarea[^>]*?>.*?</textarea>!is", '@@@SMARTY:TRIM:TEXTAREA@@@', $source);
    // remove all leading spaces, tabs and carriage returns NOT
    // preceeded by a php close tag.
    $source = trim(preg_replace('/((?<!\\?>)\\n)[\\s]+/m', '\\1', $source));
    // replace textarea blocks
    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:TEXTAREA@@@", $_textarea_blocks, $source);
    // replace pre blocks
    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:PRE@@@", $_pre_blocks, $source);
    // replace script blocks
    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@", $_script_blocks, $source);
    return $source;
}
function smarty_outputfilter_trimwhitespace($source,&$smarty)
{
preg_match_all("!<script[^>]*?>.*?</script>!is",$source,$match);
$_script_blocks = $match[0];
$source = preg_replace("!<script[^>]*?>.*?</script>!is",
'@@@SMARTY:TRIM:SCRIPT@@@',$source);
preg_match_all("!<pre[^>]*?>.*?</pre>!is",$source,$match);
$_pre_blocks = $match[0];
$source = preg_replace("!<pre[^>]*?>.*?</pre>!is",
'@@@SMARTY:TRIM:PRE@@@',$source);
preg_match_all("!<textarea[^>]*?>.*?</textarea>!is",$source,$match);
$_textarea_blocks = $match[0];
$source = preg_replace("!<textarea[^>]*?>.*?</textarea>!is",
'@@@SMARTY:TRIM:TEXTAREA@@@',$source);
$source = trim(preg_replace('/((?<!\?>)\n)[\s]+/m','\1',$source));
smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:TEXTAREA@@@",$_textarea_blocks,$source);
smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:PRE@@@",$_pre_blocks,$source);
smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@",$_script_blocks,$source);
return $source;
}
/**
 * Smarty html_minify outputfilter plugin
 *
 * File:     outputfilter.html_minify.php<br>
 * Type:     outputfilter<br>
 * Name:     html_minify<br>
 * Date:     Feb 06, 2011<br>
 * Purpose:  it minifies html yo!
 * Install:  Drop into the plugin directory, call
 *           <code>$smarty->load_filter('output','html_minify');</code>
 *           from application.
 * @author   Nicholas Granado <ngranado at gmail dot com>
 * @author   Based on outputfilter.trimwhitespace from Monte Ohrt <monte at ohrt dot com>
 * @author   Contributions from Lars Noschinski <*****@*****.**>
 * @version  1.0
 * @param string
 * @param Smarty
 */
function smarty_outputfilter_html_minify($source, &$smarty)
{
    // Pull out the script blocks
    preg_match_all("!<script[^>]*?>.*?</script>!is", $source, $match);
    $_script_blocks = $match[0];
    $source = preg_replace("!<script[^>]*?>.*?</script>!is", '@@@SMARTY:TRIM:SCRIPT@@@', $source);
    // Pull out the pre blocks
    preg_match_all("!<pre[^>]*?>.*?</pre>!is", $source, $match);
    $_pre_blocks = $match[0];
    $source = preg_replace("!<pre[^>]*?>.*?</pre>!is", '@@@SMARTY:TRIM:PRE@@@', $source);
    // Pull out the textarea blocks
    preg_match_all("!<textarea[^>]*?>.*?</textarea>!is", $source, $match);
    $_textarea_blocks = $match[0];
    $source = preg_replace("!<textarea[^>]*?>.*?</textarea>!is", '@@@SMARTY:TRIM:TEXTAREA@@@', $source);
    // remove all leading spaces, tabs and carriage returns NOT
    // preceeded by a php close tag.
    $source = trim(preg_replace('/((?<!\\?>)\\n)[\\s]+/m', '\\1', $source));
    //---------- FROM HTML MINIFY
    // remove HTML comments (not containing IE conditional comments).
    $source = preg_replace_callback('/<!--([\\s\\S]*?)-->/', "_commentCB", $source);
    // trim each line.
    // @todo take into account attribute values that span multiple lines.
    $source = preg_replace('/^\\s+|\\s+$/m', '', $source);
    // remove ws around block/undisplayed elements
    $source = preg_replace('/\\s+(<\\/?(?:area|base(?:font)?|blockquote|body' . '|caption|center|cite|col(?:group)?|dd|dir|div|dl|dt|fieldset|form' . '|frame(?:set)?|h[1-6]|head|hr|html|legend|li|link|map|menu|meta' . '|ol|opt(?:group|ion)|p|param|t(?:able|body|head|d|h||r|foot|itle)' . '|ul)\\b[^>]*>)/i', '$1', $source);
    // remove ws outside of all elements
    $source = preg_replace_callback('/>([^<]+)</', "_outsideTagCB", $source);
    // use newlines before 1st attribute in open tags (to limit line lengths)
    //$source = preg_replace('/(<[a-z\\-]+)\\s+([^>]+>)/i', "$1\n$2", $source);
    //---------- END HTML MINIFY
    // replace textarea blocks
    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:TEXTAREA@@@", $_textarea_blocks, $source);
    // replace pre blocks
    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:PRE@@@", $_pre_blocks, $source);
    // replace script blocks
    smarty_outputfilter_trimwhitespace_replace("@@@SMARTY:TRIM:SCRIPT@@@", $_script_blocks, $source);
    return $source;
}