git.sesse.net Git - xml-template/blob - php5/xml-template.php

   1 <?php
   2
   3 function XML_Template_process_file($filename, $obj, $clean = 1)
   4 {
   5         $doc = new DOMDocument;
   6         $doc->load($filename);
   7         XML_Template_process($doc, $obj, $clean);
   8         return $doc;
   9 }
  10
  11 function XML_Template_process($node, $obj, $clean = 1)
  12 {
  13         if (is_a($obj, 'DOMNode')) {                          # overwrite
  14                 while ($node->childeNodes->length > 0) {
  15                         $child = $node->childNodes->item(0);
  16                         $node->removeChild($child);
  17                 }
  18
  19                 if (is_a($obj, 'DOMDocument')) {
  20                         $obj = $obj->documentElement;
  21                 }
  22
  23                 $frag = $node->ownerDocument->createDocumentFragment();
  24                 $frag->appendXML($obj->ownerDocument->saveXML($obj));
  25                 XML_Template_process($frag, array(), $clean);
  26                 $node->appendChild($frag);
  27         } else if (!is_array($obj)) {                         # overwrite
  28                 for ($i = 0; $i < $node->childNodes->length; ++$i) {
  29                         $child = $node->childNodes->item($i);
  30                         $node->removeChild($child);
  31                 }
  32                 $doc = $node->ownerDocument;
  33                 $node->appendChild($doc->createTextNode($obj));
  34         } else if (is_associative_array($obj)) {              # substitute
  35                 for ($i = 0; $i < $node->childNodes->length; ++$i) {
  36                         $child = $node->childNodes->item($i);
  37                         $processed = false;
  38
  39                         if ($child->nodeType == XML_ELEMENT_NODE) {
  40                                 unset($id);
  41
  42                                 $tag = $child->localName;
  43                                 $attrs = $child->attributes;
  44
  45                                 if (isset($attrs)) {
  46                                         foreach ($child->attributes as $attr) {
  47                                                 if ($attr->namespaceURI == 'http://template.sesse.net/' && $attr->name == 'id') {
  48                                                         $id = $attr->value;
  49                                                         if ($clean) {
  50                                                                 $child->removeAttributeNode($attr);
  51                                                         }
  52                                                 }
  53                                         }
  54                                 }
  55
  56                                 # check all substitutions to see if we found anything
  57                                 # appropriate
  58                                 foreach (array_keys($obj) as $key) {
  59                                         # FIXME: we would want something like \Q and \E here...
  60                                         if (preg_match('/^' . $tag . '\/(.*)$/', $key, $matches) ||
  61                                             (isset($id) && preg_match('/^#' . $id . '\/(.*)$/', $key, $matches))) {
  62                                                 $child->setAttribute($matches[1], $obj[$key]);
  63                                         }
  64
  65                                         if ($processed) {
  66                                                 continue;
  67                                         }
  68                                         if ($key == $tag || (isset($id) && $key == ('#'.$id))) {
  69                                                 XML_Template_process($child, $obj[$key], $clean);
  70                                                 $processed = true;
  71                                         }
  72                                 }
  73                         }
  74
  75                         if (!$processed) {
  76                                 XML_Template_process($child, $obj, $clean);
  77                         }
  78                 }
  79         } else {                                                # repeat
  80                 $doc = $node->ownerDocument;
  81                 $frag = $doc->createDocumentFragment();
  82
  83                 while ($node->childNodes->length > 0) {
  84                         $child = $node->childNodes->item(0);
  85                         $node->removeChild($child);
  86                         $frag->appendChild($child);
  87                 }
  88
  89                 foreach ($obj as $instance) {
  90                         if (!isset($instance)) {
  91                                 continue;
  92                         }
  93
  94                         $newnode = $frag->cloneNode(true);
  95                         XML_Template_process($newnode, $instance, $clean);
  96                         $node->appendChild($newnode);
  97                         if ($clean) {
  98                                 XML_Template_clean($newnode);
  99                         }
 100                 }
 101         }
 102
 103         if ($clean) {
 104                 XML_Template_clean($node);
 105         }
 106 }
 107
 108 function XML_Template_clean($node)
 109 {
 110         if ($node->nodeType == XML_ELEMENT_NODE) {
 111                 if ($node->namespaceURI != 'http://template.sesse.net/') {
 112                         return;
 113                 }
 114
 115                 # as this is a dummy node, we want to remove it and move everything further up
 116                 # after we've done any required replacements
 117                 $doc = $node->ownerDocument;
 118                 $parent = $node->parentNode;
 119
 120                 while ($node->childNodes->length > 0) {
 121                         $child = $node->childNodes->item(0);
 122                         $node->removeChild($child);
 123                         $parent->insertBefore($child, $node);
 124                 }
 125                 $parent->removeChild($node);
 126         }
 127 }
 128
 129 # FIXME: use varargs here
 130 function XML_Template_alternate($tag, $array, $elems)
 131 {
 132         $num = count($elems);
 133
 134         for ($i = 0, $j = 0; $i < count($array); $i++) {
 135                 if (isset($array[$i])) {
 136                         $array[$i][$tag] = $elems[$j++ % $num];
 137                 }
 138         }
 139
 140         return $array;
 141 }
 142
 143 function is_associative_array($arr)
 144 {
 145         if (!is_array($arr)) {
 146                 return false;
 147         }
 148         $diff = array_diff(range(0, count($arr) - 1), array_keys($arr));
 149         return (count($diff) > 0);
 150 }
 151 ?>