1 <?php

     2 /**

     3  * Smarty plugin

     4  * @package Smarty

     5  * @subpackage plugins

     6  */

     7 

     8 /**

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

    10  *

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

    16  *       (Smarty online manual)

    17  * @param array

    18  * <pre>

    19  * Params:   style: string (email)

    20  *           indent: integer (0)

    21  *           wrap: integer (80)

    22  *           wrap_char string ("\n")

    23  *           indent_char: string (" ")

    24  *           wrap_boundary: boolean (true)

    25  * </pre>

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

    27  * @param string contents of the block

    28  * @param Smarty clever simulation of a method

    29  * @return string string $content re-formatted

    30  */

    31 function smarty_block_textformat($params, $content, &$smarty)

    32 {

    33     if (is_null($content)) {

    34         return;

    35     }

    36 

    37     $style = null;

    38     $indent = 0;

    39     $indent_first = 0;

    40     $indent_char = ' ';

    41     $wrap = 80;

    42     $wrap_char = "\n";

    43     $wrap_cut = false;

    44     $assign = null;

    45     

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

    47         switch ($_key) {

    48             case 'style':

    49             case 'indent_char':

    50             case 'wrap_char':

    51             case 'assign':

    52                 $$_key = (string)$_val;

    53                 break;

    54 

    55             case 'indent':

    56             case 'indent_first':

    57             case 'wrap':

    58                 $$_key = (int)$_val;

    59                 break;

    60 

    61             case 'wrap_cut':

    62                 $$_key = (bool)$_val;

    63                 break;

    64 

    65             default:

    66                 $smarty->trigger_error("textformat: unknown attribute '$_key'");

    67         }

    68     }

    69 

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

    71         $wrap = 72;

    72     }

    73 

    74     // split into paragraphs

    75     $_paragraphs = preg_split('![\r\n][\r\n]!',$content);

    76     $_output = '';

    77 

    78     for($_x = 0, $_y = count($_paragraphs); $_x < $_y; $_x++) {

    79         if ($_paragraphs[$_x] == '') {

    80             continue;

    81         }

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

    83         $_paragraphs[$_x] = preg_replace(array('!\s+!','!(^\s+)|(\s+$)!'), array(' ',''), $_paragraphs[$_x]);

    84         // indent first line

    85         if($indent_first > 0) {

    86             $_paragraphs[$_x] = str_repeat($indent_char, $indent_first) . $_paragraphs[$_x];

    87         }

    88         // wordwrap sentences

    89         $_paragraphs[$_x] = wordwrap($_paragraphs[$_x], $wrap - $indent, $wrap_char, $wrap_cut);

    90         // indent lines

    91         if($indent > 0) {

    92             $_paragraphs[$_x] = preg_replace('!^!m', str_repeat($indent_char, $indent), $_paragraphs[$_x]);

    93         }

    94     }

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

    96 

    97     return $assign ? $smarty->assign($assign, $_output) : $_output;

    98 

    99 }

   100 

   101 /* vim: set expandtab: */

   102 

   103 ?>