1 <?php

     2 /**

     3  * Smarty plugin to format text blocks

     4  *

     5  * @package    Smarty

     6  * @subpackage PluginsBlock

     7  */

     8 

     9 /**

    10  * Smarty {textformat}{/textformat} block plugin

    11  * Type:     block function<br>

    12  * Name:     textformat<br>

    13  * Purpose:  format text a certain way with preset styles

    14  *           or custom wrap/indent settings<br>

    15  * Params:

    16  * <pre>

    17  * - style         - string (email)

    18  * - indent        - integer (0)

    19  * - wrap          - integer (80)

    20  * - wrap_char     - string ("\n")

    21  * - indent_char   - string (" ")

    22  * - wrap_boundary - boolean (true)

    23  * </pre>

    24  *

    25  * @link   http://www.smarty.net/manual/en/language.function.textformat.php {textformat}

    26  *         (Smarty online manual)

    27  *

    28  * @param array $params parameters

    29  * @param string $content contents of the block

    30  * @param Smarty_Internal_Template $template template object

    31  * @param boolean &$repeat repeat flag

    32  *

    33  * @return string content re-formatted

    34  * @author Monte Ohrt <monte at ohrt dot com>

    35  */

    36 function smarty_block_textformat($params, $content, $template, &$repeat) {

    37     if (is_null($content)) {

    38         return;

    39     }

    40 

    41     $style = null;

    42     $indent = 0;

    43     $indent_first = 0;

    44     $indent_char = ' ';

    45     $wrap = 80;

    46     $wrap_char = "\n";

    47     $wrap_cut = false;

    48     $assign = null;

    49 

    50     foreach ($params as $_key => $_val) {

    51         switch ($_key) {

    52             case 'style':

    53             case 'indent_char':

    54             case 'wrap_char':

    55             case 'assign':

    56                 $$_key = (string)$_val;

    57                 break;

    58 

    59             case 'indent':

    60             case 'indent_first':

    61             case 'wrap':

    62                 $$_key = (int)$_val;

    63                 break;

    64 

    65             case 'wrap_cut':

    66                 $$_key = (bool)$_val;

    67                 break;

    68 

    69             default:

    70                 trigger_error("textformat: unknown attribute '$_key'");

    71         }

    72     }

    73 

    74     if ($style == 'email') {

    75         $wrap = 72;

    76     }

    77     // split into paragraphs

    78     $_paragraphs = preg_split('![\r\n]{2}!', $content);

    79 

    80     foreach ($_paragraphs as &$_paragraph) {

    81         if (!$_paragraph) {

    82             continue;

    83         }

    84         // convert mult. spaces & special chars to single space

    85         $_paragraph = preg_replace(array('!\s+!' . Smarty::$_UTF8_MODIFIER, '!(^\s+)|(\s+$)!' . Smarty::$_UTF8_MODIFIER), array(' ', ''), $_paragraph);

    86         // indent first line

    87         if ($indent_first > 0) {

    88             $_paragraph = str_repeat($indent_char, $indent_first) . $_paragraph;

    89         }

    90         // wordwrap sentences

    91         if (Smarty::$_MBSTRING) {

    92             require_once(SMARTY_PLUGINS_DIR . 'shared.mb_wordwrap.php');

    93             $_paragraph = smarty_mb_wordwrap($_paragraph, $wrap - $indent, $wrap_char, $wrap_cut);

    94         } else {

    95             $_paragraph = wordwrap($_paragraph, $wrap - $indent, $wrap_char, $wrap_cut);

    96         }

    97         // indent lines

    98         if ($indent > 0) {

    99             $_paragraph = preg_replace('!^!m', str_repeat($indent_char, $indent), $_paragraph);

   100         }

   101     }

   102     $_output = implode($wrap_char . $wrap_char, $_paragraphs);

   103 

   104     if ($assign) {

   105         $template->assign($assign, $_output);

   106     } else {

   107         return $_output;

   108     }

   109 }