diff options
Diffstat (limited to 'include/smarty/libs/sysplugins/smarty_internal_parsetree.php')
| -rw-r--r-- | include/smarty/libs/sysplugins/smarty_internal_parsetree.php | 395 |
1 files changed, 395 insertions, 0 deletions
diff --git a/include/smarty/libs/sysplugins/smarty_internal_parsetree.php b/include/smarty/libs/sysplugins/smarty_internal_parsetree.php new file mode 100644 index 000000000..c9fb1f762 --- /dev/null +++ b/include/smarty/libs/sysplugins/smarty_internal_parsetree.php @@ -0,0 +1,395 @@ +<?php
+/**
+ * Smarty Internal Plugin Templateparser Parsetrees
+ *
+ * These are classes to build parsetrees in the template parser
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @author Thue Kristensen
+ * @author Uwe Tews
+ */
+
+/**
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+abstract class _smarty_parsetree {
+
+ /**
+ * Parser object
+ * @var object
+ */
+ public $parser;
+ /**
+ * Buffer content
+ * @var mixed
+ */
+ public $data;
+
+ /**
+ * Return buffer
+ *
+ * @return string buffer content
+ */
+ abstract public function to_smarty_php();
+
+}
+
+/**
+ * A complete smarty tag.
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+class _smarty_tag extends _smarty_parsetree {
+
+ /**
+ * Saved block nesting level
+ * @var int
+ */
+ public $saved_block_nesting;
+
+ /**
+ * Create parse tree buffer for Smarty tag
+ *
+ * @param object $parser parser object
+ * @param string $data content
+ */
+ public function __construct($parser, $data)
+ {
+ $this->parser = $parser;
+ $this->data = $data;
+ $this->saved_block_nesting = $parser->block_nesting_level;
+ }
+
+ /**
+ * Return buffer content
+ *
+ * @return string content
+ */
+ public function to_smarty_php()
+ {
+ return $this->data;
+ }
+
+ /**
+ * Return complied code that loads the evaluated outout of buffer content into a temporary variable
+ *
+ * @return string template code
+ */
+ public function assign_to_var()
+ {
+ $var = sprintf('$_tmp%d', ++$this->parser->prefix_number);
+ $this->parser->compiler->prefix_code[] = sprintf('<?php ob_start();?>%s<?php %s=ob_get_clean();?>', $this->data, $var);
+ return $var;
+ }
+
+}
+
+/**
+ * Code fragment inside a tag.
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+class _smarty_code extends _smarty_parsetree {
+
+
+ /**
+ * Create parse tree buffer for code fragment
+ *
+ * @param object $parser parser object
+ * @param string $data content
+ */
+ public function __construct($parser, $data)
+ {
+ $this->parser = $parser;
+ $this->data = $data;
+ }
+
+ /**
+ * Return buffer content in parentheses
+ *
+ * @return string content
+ */
+ public function to_smarty_php()
+ {
+ return sprintf("(%s)", $this->data);
+ }
+
+}
+
+/**
+ * Double quoted string inside a tag.
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+class _smarty_doublequoted extends _smarty_parsetree {
+
+ /**
+ * Create parse tree buffer for double quoted string subtrees
+ *
+ * @param object $parser parser object
+ * @param _smarty_parsetree $subtree parsetree buffer
+ */
+ public function __construct($parser, _smarty_parsetree $subtree)
+ {
+ $this->parser = $parser;
+ $this->subtrees[] = $subtree;
+ if ($subtree instanceof _smarty_tag) {
+ $this->parser->block_nesting_level = count($this->parser->compiler->_tag_stack);
+ }
+ }
+
+ /**
+ * Append buffer to subtree
+ *
+ * @param _smarty_parsetree $subtree parsetree buffer
+ */
+ public function append_subtree(_smarty_parsetree $subtree)
+ {
+ $last_subtree = count($this->subtrees) - 1;
+ if ($last_subtree >= 0 && $this->subtrees[$last_subtree] instanceof _smarty_tag && $this->subtrees[$last_subtree]->saved_block_nesting < $this->parser->block_nesting_level) {
+ if ($subtree instanceof _smarty_code) {
+ $this->subtrees[$last_subtree]->data .= '<?php echo ' . $subtree->data . ';?>';
+ } elseif ($subtree instanceof _smarty_dq_content) {
+ $this->subtrees[$last_subtree]->data .= '<?php echo "' . $subtree->data . '";?>';
+ } else {
+ $this->subtrees[$last_subtree]->data .= $subtree->data;
+ }
+ } else {
+ $this->subtrees[] = $subtree;
+ }
+ if ($subtree instanceof _smarty_tag) {
+ $this->parser->block_nesting_level = count($this->parser->compiler->_tag_stack);
+ }
+ }
+
+ /**
+ * Merge subtree buffer content together
+ *
+ * @return string compiled template code
+ */
+ public function to_smarty_php()
+ {
+ $code = '';
+ foreach ($this->subtrees as $subtree) {
+ if ($code !== "") {
+ $code .= ".";
+ }
+ if ($subtree instanceof _smarty_tag) {
+ $more_php = $subtree->assign_to_var();
+ } else {
+ $more_php = $subtree->to_smarty_php();
+ }
+
+ $code .= $more_php;
+
+ if (!$subtree instanceof _smarty_dq_content) {
+ $this->parser->compiler->has_variable_string = true;
+ }
+ }
+ return $code;
+ }
+
+}
+
+/**
+ * Raw chars as part of a double quoted string.
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+class _smarty_dq_content extends _smarty_parsetree {
+
+
+ /**
+ * Create parse tree buffer with string content
+ *
+ * @param object $parser parser object
+ * @param string $data string section
+ */
+ public function __construct($parser, $data)
+ {
+ $this->parser = $parser;
+ $this->data = $data;
+ }
+
+ /**
+ * Return content as double quoted string
+ *
+ * @return string doubled quoted string
+ */
+ public function to_smarty_php()
+ {
+ return '"' . $this->data . '"';
+ }
+
+}
+
+/**
+ * Template element
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+class _smarty_template_buffer extends _smarty_parsetree {
+
+ /**
+ * Array of template elements
+ *
+ * @var array
+ */
+ public $subtrees = Array();
+
+ /**
+ * Create root of parse tree for template elements
+ *
+ * @param object $parser parse object
+ */
+ public function __construct($parser)
+ {
+ $this->parser = $parser;
+ }
+
+ /**
+ * Append buffer to subtree
+ *
+ * @param _smarty_parsetree $subtree
+ */
+ public function append_subtree(_smarty_parsetree $subtree)
+ {
+ $this->subtrees[] = $subtree;
+ }
+
+ /**
+ * Sanitize and merge subtree buffers together
+ *
+ * @return string template code content
+ */
+ public function to_smarty_php()
+ {
+ $code = '';
+ for ($key = 0, $cnt = count($this->subtrees); $key < $cnt; $key++) {
+ if ($key + 2 < $cnt) {
+ if ($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) {
+ $key = $key + 1;
+ continue;
+ }
+ if (substr($this->subtrees[$key]->data, -1) == '<' && $this->subtrees[$key + 1]->data == '' && substr($this->subtrees[$key + 2]->data, -1) == '?') {
+ $key = $key + 2;
+ continue;
+ }
+ }
+ if (substr($code, -1) == '<') {
+ $subtree = $this->subtrees[$key]->to_smarty_php();
+ if (substr($subtree, 0, 1) == '?') {
+ $code = substr($code, 0, strlen($code) - 1) . '<<?php ?>?' . substr($subtree, 1);
+ } elseif ($this->parser->asp_tags && substr($subtree, 0, 1) == '%') {
+ $code = substr($code, 0, strlen($code) - 1) . '<<?php ?>%' . substr($subtree, 1);
+ } else {
+ $code .= $subtree;
+ }
+ continue;
+ }
+ if ($this->parser->asp_tags && substr($code, -1) == '%') {
+ $subtree = $this->subtrees[$key]->to_smarty_php();
+ if (substr($subtree, 0, 1) == '>') {
+ $code = substr($code, 0, strlen($code) - 1) . '%<?php ?>>' . substr($subtree, 1);
+ } else {
+ $code .= $subtree;
+ }
+ continue;
+ }
+ if (substr($code, -1) == '?') {
+ $subtree = $this->subtrees[$key]->to_smarty_php();
+ if (substr($subtree, 0, 1) == '>') {
+ $code = substr($code, 0, strlen($code) - 1) . '?<?php ?>>' . substr($subtree, 1);
+ } else {
+ $code .= $subtree;
+ }
+ continue;
+ }
+ $code .= $this->subtrees[$key]->to_smarty_php();
+ }
+ return $code;
+ }
+
+}
+
+/**
+ * template text
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+class _smarty_text extends _smarty_parsetree {
+
+
+ /**
+ * Create template text buffer
+ *
+ * @param object $parser parser object
+ * @param string $data text
+ */
+ public function __construct($parser, $data)
+ {
+ $this->parser = $parser;
+ $this->data = $data;
+ }
+
+ /**
+ * Return buffer content
+ *
+ * @return strint text
+ */
+ public function to_smarty_php()
+ {
+ return $this->data;
+ }
+
+}
+
+/**
+ * template linebreaks
+ *
+ * @package Smarty
+ * @subpackage Compiler
+ * @ignore
+ */
+class _smarty_linebreak extends _smarty_parsetree {
+
+ /**
+ * Create buffer with linebreak content
+ *
+ * @param object $parser parser object
+ * @param string $data linebreak string
+ */
+ public function __construct($parser, $data)
+ {
+ $this->parser = $parser;
+ $this->data = $data;
+ }
+
+ /**
+ * Return linebrak
+ *
+ * @return string linebreak
+ */
+ public function to_smarty_php()
+ {
+ return $this->data;
+ }
+
+}
+
+?>
\ No newline at end of file |