libraries/transformations/text_plain__substr.inc.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * @package PhpMyAdmin-Transformation
   5  */
   6
   7 function PMA_transformation_text_plain__substr_info()
   8 {
   9     return array(
  10         'info' => __('Displays a part of a string. The first option is the number of characters to skip from the beginning of the string (Default 0). The second option is the number of characters to return (Default: until end of string). The third option is the string to append and/or prepend when truncation occurs (Default: "...").'),
  11         );
  12 }
  13
  14 /**
  15  *
  16  */
  17 function PMA_transformation_text_plain__substr($buffer, $options = array(), $meta = '')
  18 {
  19     // possibly use a global transform and feed it with special options:
  20     // include './libraries/transformations/global.inc.php';
  21
  22     // further operations on $buffer using the $options[] array.
  23     if (!isset($options[0]) ||  $options[0] == '') {
  24         $options[0] = 0;
  25     }
  26
  27     if (!isset($options[1]) ||  $options[1] == '') {
  28         $options[1] = 'all';
  29     }
  30
  31     if (!isset($options[2]) || $options[2] == '') {
  32         $options[2] = '...';
  33     }
  34
  35     $newtext = '';
  36     if ($options[1] != 'all') {
  37         $newtext = PMA_substr($buffer, $options[0], $options[1]);
  38     } else {
  39         $newtext = PMA_substr($buffer, $options[0]);
  40     }
  41
  42     $length = strlen($newtext);
  43     $baselength = strlen($buffer);
  44     if ($length != $baselength) {
  45         if ($options[0] != 0) {
  46             $newtext = $options[2] . $newtext;
  47         }
  48
  49         if (($length + $options[0]) != $baselength) {
  50             $newtext .= $options[2];
  51         }
  52     }
  53
  54     return $newtext;
  55 }
  56
  57 ?>