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

   1 <?php
   2
   3 function XML_Template_process_file($filename, $obj, $clean = 1)
   4 {
   5         $doc = domxml_open_file($filename);
   6         XML_Template_process($doc, $obj, $clean);
   7         return $doc;
   8 }
   9
  10 function XML_Template_process($node, $obj, $clean = 1)
  11 {
  12         if (is_a($obj, 'domnode')) {                          # overwrite
  13                 foreach ($node->child_nodes() as $child) {
  14                         $node->remove_child($child);
  15                 }
  16
  17                 if (is_a($obj, 'domdocument')) {
  18                         $obj = $obj->document_element();
  19                 }
  20
  21                 $newobj = $obj->clone_node(true);
  22                 $node->append_child($newobj);
  23
  24                 if ($clean) {
  25                         clean($newobj);
  26                 }
  27         } else if (!is_array($obj)) {                         # overwrite
  28                 foreach ($node->child_nodes() as $child) {
  29                         $node->remove_child($child);
  30                 }
  31                 $doc = $node->owner_document();
  32                 $node->add_child($doc->create_text_node($obj));
  33         } else if (is_associative_array($obj)) {              # substitute
  34                 foreach ($node->child_nodes() as $child) {
  35                         $processed = false;
  36
  37                         if ($child->node_type() == XML_ELEMENT_NODE) {
  38                                 $tag = $child->node_name();
  39                                 $attrs = $child->attributes();
  40                                 if (isset($attrs)) {
  41                                         foreach ($child->attributes() as $attr) {
  42                                                 if ($attr->namespace_uri() == 'http://template.sesse.net/' && $attr->name() == 'id') {
  43                                                         $id = $attr->value();
  44                                                         if ($clean) {
  45                                                                 // FIXME: this won't work since we're not in the right namespace
  46                                                                 // $child->remove_attribute($attr->name());
  47                                                         }
  48                                                 }
  49                                         }
  50                                 }
  51
  52                                 # check all substitutions to see if we found anything
  53                                 # appropriate
  54                                 foreach (array_keys($obj) as $key) {
  55                                         # FIXME: we would want something like \Q and \E here...
  56                                         if (preg_match('/^' . $tag . '\/(.*)$/', $key, $matches) ||
  57                                             (isset($id) && preg_match('/^#' . $id . '\/(.*)$/', $key, $matches))) {
  58                                                 $child->set_attribute($matches[1], $obj[$key]);
  59                                         }
  60
  61                                         if ($processed) {
  62                                                 continue;
  63                                         }
  64                                         if ($key == $tag || (isset($id) && $key == ('#'.$id))) {
  65                                                 XML_Template_process($child, $obj[$key], $clean);
  66                                                 $processed = true;
  67                                         }
  68                                 }
  69                         }
  70
  71                         if (!$processed) {
  72                                 XML_Template_process($child, $obj, $clean);
  73                         }
  74                 }
  75         } else {                                                # repeat
  76                 $doc = $node->owner_document();
  77                 $frag = $doc->create_element("temporary-fragment");    # ugh
  78
  79                 foreach ($node->child_nodes() as $child) {
  80                         $frag->append_child($child);
  81                         $node->remove_child($child);
  82                 }
  83
  84                 foreach ($obj as $instance) {
  85                         $newnode = $frag->clone_node(true);
  86                         $node->append_child($newnode);
  87                         XML_Template_process($newnode, $instance, $clean);
  88                         if ($clean) {
  89                                 XML_Template_clean($newnode);
  90                         }
  91                 }
  92
  93                 # remove all the <fragment> tags
  94
  95                 foreach ($node->child_nodes() as $child) {
  96                         if ($child->name() != 'temporary-fragment') {
  97                                 continue;
  98                         }
  99                         foreach ($child->child_nodes() as $child2) {
 100                                 $node->append_child($child2);
 101                         }
 102                         $node->remove_child($child);
 103                 }
 104
 105                 return;
 106         }
 107
 108         if ($clean) {
 109                 XML_Template_clean($node);
 110         }
 111 }
 112
 113 function XML_Template_clean($node)
 114 {
 115         if ($node->node_type() == XML_ELEMENT_NODE) {
 116                 if ($node->namespace_uri() != 'http://template.sesse.net/') {
 117                         return;
 118                 }
 119
 120                 # as this is a dummy node, we want to remove it and move everything further up
 121                 # after we've done any required replacements
 122                 $doc = $node->owner_document();
 123                 $parent = $node->parent_node();
 124                 foreach ($node->child_nodes() as $child) {
 125                         $node->remove_child($child);
 126                         $node->insert_before($child, $node);
 127                 }
 128                 $parent->remove_child($node);
 129         }
 130 }
 131
 132 # FIXME: use varargs here
 133 function XML_Template_alternate($tag, $array, $elems)
 134 {
 135         $i = 0;
 136         $num = count($elems);
 137
 138         for ($i = 0; $i < count($array); $i++) {
 139                 $array[$i][$tag] = $elems[$i % $num];
 140         }
 141
 142         return $array;
 143 }
 144
 145 function is_associative_array($arr)
 146 {
 147         if (!is_array($arr)) {
 148                 return false;
 149         }
 150         $diff = array_diff(range(0, count($arr) - 1), array_keys($arr));
 151         return (count($diff) > 0);
 152 }
 153 ?>