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         } else if (!is_array($obj)) {                         # overwrite
  24                 foreach ($node->child_nodes() as $child) {
  25                         $node->remove_child($child);
  26                 }
  27                 $doc = $node->owner_document();
  28                 $node->add_child($doc->create_text_node($obj));
  29         } else if (is_associative_array($obj)) {              # substitute
  30                 foreach ($node->child_nodes() as $child) {
  31                         $processed = false;
  32
  33                         if ($child->node_type() == XML_ELEMENT_NODE) {
  34                                 $tag = $child->node_name();
  35                                 $attrs = $child->attributes();
  36                                 if (isset($attrs)) {
  37                                         foreach ($child->attributes() as $attr) {
  38                                                 if ($attr->namespace_uri() == 'http://template.sesse.net/' && $attr->name() == 'id') {
  39                                                         $id = $attr->value();
  40                                                         if ($clean) {
  41                                                                 $child->remove_attribute($attr->name());
  42                                                         }
  43                                                 }
  44                                         }
  45                                 }
  46
  47                                 # check all substitutions to see if we found anything
  48                                 # appropriate
  49                                 foreach (array_keys($obj) as $key) {
  50                                         # FIXME: we would want something like \Q and \E here...
  51                                         if (preg_match('/^' . $tag . '\/(.*)$/', $key, $matches) ||
  52                                             (isset($id) && preg_match('/^#' . $id . '\/(.*)$/', $key, $matches))) {
  53                                                 $child->set_attribute($matches[1], $obj[$key]);
  54                                         }
  55
  56                                         if ($processed) {
  57                                                 continue;
  58                                         }
  59                                         if ($key == $tag || (isset($id) && $key == ('#'.$id))) {
  60                                                 XML_Template_process($child, $obj[$key], $clean);
  61                                                 $processed = true;
  62                                         }
  63                                 }
  64                         }
  65
  66                         if (!$processed) {
  67                                 XML_Template_process($child, $obj, $clean);
  68                         }
  69                 }
  70         } else {                                                # repeat
  71                 $doc = $node->owner_document();
  72                 $frag = $doc->create_element("temporary-fragment");    # ugh
  73
  74                 foreach ($node->child_nodes() as $child) {
  75                         $frag->append_child($child);
  76                         $node->remove_child($child);
  77                 }
  78
  79                 foreach ($obj as $instance) {
  80                         $newnode = $frag->clone_node(true);
  81                         $node->append_child($newnode);
  82                         XML_Template_process($newnode, $instance, $clean);
  83                         if ($clean) {
  84                                 XML_Template_clean($newnode);
  85                         }
  86                 }
  87
  88                 # remove all the <fragment> tags
  89
  90                 foreach ($node->child_nodes() as $child) {
  91                         if ($child->name() != 'temporary-fragment') {
  92                                 continue;
  93                         }
  94                         foreach ($child->child_nodes() as $child2) {
  95                                 $node->append_child($child2);
  96                         }
  97                         $node->remove_child($child);
  98                 }
  99
 100                 return;
 101         }
 102
 103         if ($clean) {
 104                 XML_Template_clean($node);
 105         }
 106 }
 107
 108 function XML_Template_clean($node)
 109 {
 110         if ($node->node_type() == XML_ELEMENT_NODE) {
 111                 if ($node->namespace_uri() != '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->owner_document();
 118                 $parent = $node->parent_node();
 119                 foreach ($node->child_nodes() as $child) {
 120                         $node->remove_child($child);
 121                         $node->insert_before($child, $node);
 122                 }
 123                 $parent->remove_child($node);
 124         }
 125 }
 126
 127 # FIXME: use varargs here
 128 function XML_Template_alternate($tag, $array, $elems)
 129 {
 130         $i = 0;
 131         $num = count($elems);
 132
 133         for ($i = 0; $i < count($array); $i++) {
 134                 $array[$i][$tag] = $elems[$i % $num];
 135         }
 136
 137         return $array;
 138 }
 139
 140 function is_associative_array($arr)
 141 {
 142         if (!is_array($arr)) {
 143                 return false;
 144         }
 145         $diff = array_diff(range(0, count($arr) - 1), array_keys($arr));
 146         return (count($diff) > 0);
 147 }
 148 ?>