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                                                                 $child->remove_attribute($attr->name());
  46                                                         }
  47                                                 }
  48                                         }
  49                                 }
  50
  51                                 # check all substitutions to see if we found anything
  52                                 # appropriate
  53                                 foreach (array_keys($obj) as $key) {
  54                                         # FIXME: we would want something like \Q and \E here...
  55                                         if (preg_match('/^' . $tag . '\/(.*)$/', $key, $matches) ||
  56                                             (isset($id) && preg_match('/^#' . $id . '\/(.*)$/', $key, $matches))) {
  57                                                 $child->set_attribute($matches[1], $obj[$key]);
  58                                         }
  59
  60                                         if ($processed) {
  61                                                 continue;
  62                                         }
  63                                         if ($key == $tag || (isset($id) && $key == ('#'.$id))) {
  64                                                 XML_Template_process($child, $obj[$key], $clean);
  65                                                 $processed = true;
  66                                         }
  67                                 }
  68                         }
  69
  70                         if (!$processed) {
  71                                 XML_Template_process($child, $obj, $clean);
  72                         }
  73                 }
  74         } else {                                                # repeat
  75                 $doc = $node->owner_document();
  76                 $frag = $doc->create_element("temporary-fragment");    # ugh
  77
  78                 foreach ($node->child_nodes() as $child) {
  79                         $frag->append_child($child);
  80                         $node->remove_child($child);
  81                 }
  82
  83                 foreach ($obj as $instance) {
  84                         $newnode = $frag->clone_node(true);
  85                         $node->append_child($newnode);
  86                         XML_Template_process($newnode, $instance, $clean);
  87                         if ($clean) {
  88                                 XML_Template_clean($newnode);
  89                         }
  90                 }
  91
  92                 # remove all the <fragment> tags
  93
  94                 foreach ($node->child_nodes() as $child) {
  95                         if ($child->name() != 'temporary-fragment') {
  96                                 continue;
  97                         }
  98                         foreach ($child->child_nodes() as $child2) {
  99                                 $node->append_child($child2);
 100                         }
 101                         $node->remove_child($child);
 102                 }
 103
 104                 return;
 105         }
 106
 107         if ($clean) {
 108                 XML_Template_clean($node);
 109         }
 110 }
 111
 112 function XML_Template_clean($node)
 113 {
 114         if ($node->node_type() == XML_ELEMENT_NODE) {
 115                 if ($node->namespace_uri() != 'http://template.sesse.net/') {
 116                         return;
 117                 }
 118
 119                 # as this is a dummy node, we want to remove it and move everything further up
 120                 # after we've done any required replacements
 121                 $doc = $node->owner_document();
 122                 $parent = $node->parent_node();
 123                 foreach ($node->child_nodes() as $child) {
 124                         $node->remove_child($child);
 125                         $node->insert_before($child, $node);
 126                 }
 127                 $parent->remove_child($node);
 128         }
 129 }
 130
 131 # FIXME: use varargs here
 132 function XML_Template_alternate($tag, $array, $elems)
 133 {
 134         $i = 0;
 135         $num = count($elems);
 136
 137         for ($i = 0; $i < count($array); $i++) {
 138                 $array[$i][$tag] = $elems[$i % $num];
 139         }
 140
 141         return $array;
 142 }
 143
 144 function is_associative_array($arr)
 145 {
 146         if (!is_array($arr)) {
 147                 return false;
 148         }
 149         $diff = array_diff(range(0, count($arr) - 1), array_keys($arr));
 150         return (count($diff) > 0);
 151 }
 152 ?>