文件操作 - modifier.mb_wordwrap.php

文件: /usr/share/php/smarty3/plugins/modifier.mb_wordwrap.php

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<?php
/**
 * Smarty plugin
 *
 * @package    Smarty
 * @subpackage PluginsModifier
 */
/**
 * Smarty wordwrap modifier plugin
 * Type:     modifier
 * Name:     mb_wordwrap
 * Purpose:  Wrap a string to a given number of characters
 *
 * @link   http://php.net/manual/en/function.wordwrap.php for similarity
 *
 * @param string  $str   the string to wrap
 * @param int     $width the width of the output
 * @param string  $break the character used to break the line
 * @param boolean $cut   ignored parameter, just for the sake of
 *
 * @return string  wrapped string
 * @author Rodney Rehm
 */
function smarty_modifier_mb_wordwrap($str, $width = 75, $break = "\n", $cut = false)
{
    // break words into tokens using white space as a delimiter
    $tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
    $length = 0;
    $t = '';
    $_previous = false;
    $_space = false;
    foreach ($tokens as $_token) {
        $token_length = mb_strlen($_token, Smarty::$_CHARSET);
        $_tokens = array($_token);
        if ($token_length > $width) {
            if ($cut) {
                $_tokens = preg_split(
                    '!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER,
                    $_token,
                    -1,
                    PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE
                );
            }
        }
        foreach ($_tokens as $token) {
            $_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token);
            $token_length = mb_strlen($token, Smarty::$_CHARSET);
            $length += $token_length;
            if ($length > $width) {
                // remove space before inserted break
                if ($_previous) {
                    $t = mb_substr($t, 0, -1, Smarty::$_CHARSET);
                }
                if (!$_space) {
                    // add the break before the token
                    if (!empty($t)) {
                        $t .= $break;
                    }
                    $length = $token_length;
                }
            } elseif ($token === "\n") {
                // hard break must reset counters
                $length = 0;
            }
            $_previous = $_space;
            // add the token
            $t .= $token;
        }
    }
    return $t;
}

文件操作 - modifier.mb_wordwrap.php

文件: /usr/share/php/smarty3/plugins/modifier.mb_wordwrap.php

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