av/includes/smarty/plugins/block.textformat.php

   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 ?>