3 * Smarty Internal Plugin Templateparser Parsetrees
5 * These are classes to build parsetrees in the template parser
9 * @author Thue Kristensen
13 abstract class _smarty_parsetree {
14 abstract public function to_smarty_php();
18 * A complete smarty tag.
20 class _smarty_tag extends _smarty_parsetree
24 public $saved_block_nesting;
25 function __construct($parser, $data)
27 $this->parser = $parser;
29 $this->saved_block_nesting = $parser->block_nesting_level;
32 public function to_smarty_php()
37 public function assign_to_var()
39 $var = sprintf('$_tmp%d', ++$this->parser->prefix_number);
40 $this->parser->compiler->prefix_code[] = sprintf('<?php ob_start();?>%s<?php %s=ob_get_clean();?>',
47 * Code fragment inside a tag.
49 class _smarty_code extends _smarty_parsetree {
52 function __construct($parser, $data)
54 $this->parser = $parser;
58 public function to_smarty_php()
60 return sprintf("(%s)", $this->data);
65 * Double quoted string inside a tag.
67 class _smarty_doublequoted extends _smarty_parsetree {
69 public $subtrees = Array();
70 function __construct($parser, _smarty_parsetree $subtree)
72 $this->parser = $parser;
73 $this->subtrees[] = $subtree;
74 if ($subtree instanceof _smarty_tag) {
75 $this->parser->block_nesting_level = count($this->parser->compiler->_tag_stack);
79 function append_subtree(_smarty_parsetree $subtree)
81 $last_subtree = count($this->subtrees)-1;
82 if ($last_subtree >= 0 && $this->subtrees[$last_subtree] instanceof _smarty_tag && $this->subtrees[$last_subtree]->saved_block_nesting < $this->parser->block_nesting_level) {
83 if ($subtree instanceof _smarty_code) {
84 $this->subtrees[$last_subtree]->data .= '<?php echo ' . $subtree->data . ';?>';
85 } elseif ($subtree instanceof _smarty_dq_content) {
86 $this->subtrees[$last_subtree]->data .= '<?php echo "' . $subtree->data . '";?>';
88 $this->subtrees[$last_subtree]->data .= $subtree->data;
91 $this->subtrees[] = $subtree;
93 if ($subtree instanceof _smarty_tag) {
94 $this->parser->block_nesting_level = count($this->parser->compiler->_tag_stack);
98 public function to_smarty_php()
101 foreach ($this->subtrees as $subtree) {
105 if ($subtree instanceof _smarty_tag) {
106 $more_php = $subtree->assign_to_var();
108 $more_php = $subtree->to_smarty_php();
113 if (!$subtree instanceof _smarty_dq_content) {
114 $this->parser->compiler->has_variable_string = true;
122 * Raw chars as part of a double quoted string.
124 class _smarty_dq_content extends _smarty_parsetree {
126 function __construct($parser, $data)
128 $this->parser = $parser;
132 public function to_smarty_php()
134 return '"' . $this->data . '"';
141 class _smarty_template_buffer extends _smarty_parsetree {
142 public $subtrees = Array();
143 function __construct($parser)
145 $this->parser = $parser;
148 function append_subtree(_smarty_parsetree $subtree)
150 $this->subtrees[] = $subtree;
153 public function to_smarty_php()
156 for ($key = 0, $cnt = count($this->subtrees); $key < $cnt; $key++) {
157 if ($key + 2 < $cnt) {
158 if ($this->subtrees[$key] instanceof _smarty_linebreak && $this->subtrees[$key + 1] instanceof _smarty_tag && $this->subtrees[$key + 1]->data == '' && $this->subtrees[$key + 2] instanceof _smarty_linebreak) {
162 if (substr($this->subtrees[$key]->data, -1) == '<' && $this->subtrees[$key + 1]->data == '' && substr($this->subtrees[$key + 2]->data, -1) == '?') {
167 if (substr($code, -1) == '<') {
168 $subtree = $this->subtrees[$key]->to_smarty_php();
169 if (substr($subtree, 0, 1) == '?') {
170 $code = substr($code, 0, strlen($code)-1) . '<<?php ?>?' . substr($subtree, 1);
171 } elseif ($this->parser->asp_tags && substr($subtree, 0, 1) == '%') {
172 $code = substr($code, 0, strlen($code)-1) . '<<?php ?>%' . substr($subtree, 1);
178 if ($this->parser->asp_tags && substr($code, -1) == '%') {
179 $subtree = $this->subtrees[$key]->to_smarty_php();
180 if (substr($subtree, 0, 1) == '>') {
181 $code = substr($code, 0, strlen($code)-1) . '%<?php ?>>' . substr($subtree, 1);
187 if (substr($code, -1) == '?') {
188 $subtree = $this->subtrees[$key]->to_smarty_php();
189 if (substr($subtree, 0, 1) == '>') {
190 $code = substr($code, 0, strlen($code)-1) . '?<?php ?>>' . substr($subtree, 1);
196 $code .= $this->subtrees[$key]->to_smarty_php();
205 class _smarty_text extends _smarty_parsetree {
207 function __construct($parser, $data)
209 $this->parser = $parser;
213 public function to_smarty_php()
220 * template linebreaks
222 class _smarty_linebreak extends _smarty_parsetree {
224 function __construct($parser, $data)
226 $this->parser = $parser;
230 public function to_smarty_php()