diff options
Diffstat (limited to 'lib/smarty3/sysplugins/smarty_internal_smartytemplatecompiler.php')
-rw-r--r-- | lib/smarty3/sysplugins/smarty_internal_smartytemplatecompiler.php | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/lib/smarty3/sysplugins/smarty_internal_smartytemplatecompiler.php b/lib/smarty3/sysplugins/smarty_internal_smartytemplatecompiler.php new file mode 100644 index 0000000..8cd37dd --- /dev/null +++ b/lib/smarty3/sysplugins/smarty_internal_smartytemplatecompiler.php @@ -0,0 +1,170 @@ +<?php +/** + * Smarty Internal Plugin Smarty Template Compiler Base + * This file contains the basic classes and methods for compiling Smarty templates with lexer/parser + * + * @package Smarty + * @subpackage Compiler + * @author Uwe Tews + */ + +/** + * Class SmartyTemplateCompiler + * + * @package Smarty + * @subpackage Compiler + */ +class Smarty_Internal_SmartyTemplateCompiler extends Smarty_Internal_TemplateCompilerBase +{ + /** + * Lexer class name + * + * @var string + */ + public $lexer_class; + + /** + * Parser class name + * + * @var string + */ + public $parser_class; + + /** + * array of vars which can be compiled in local scope + * + * @var array + */ + public $local_var = array(); + + /** + * array of callbacks called when the normal compile process of template is finished + * + * @var array + */ + public $postCompileCallbacks = array(); + + /** + * prefix code + * + * @var string + */ + public $prefixCompiledCode = ''; + + /** + * postfix code + * + * @var string + */ + public $postfixCompiledCode = ''; + + /** + * Initialize compiler + * + * @param string $lexer_class class name + * @param string $parser_class class name + * @param Smarty $smarty global instance + */ + public function __construct($lexer_class, $parser_class, Smarty $smarty) + { + parent::__construct($smarty); + // get required plugins + $this->lexer_class = $lexer_class; + $this->parser_class = $parser_class; + } + + /** + * method to compile a Smarty template + * + * @param mixed $_content template source + * @param bool $isTemplateSource + * + * @return bool true if compiling succeeded, false if it failed + * @throws \SmartyCompilerException + */ + protected function doCompile($_content, $isTemplateSource = false) + { + /* here is where the compiling takes place. Smarty + tags in the templates are replaces with PHP code, + then written to compiled files. */ + // init the lexer/parser to compile the template + $this->parser = + new $this->parser_class(new $this->lexer_class(str_replace(array("\r\n", "\r"), "\n", $_content), $this), + $this); + if ($isTemplateSource && $this->template->caching) { + $this->parser->insertPhpCode("<?php\n\$_smarty_tpl->compiled->nocache_hash = '{$this->nocache_hash}';\n?>\n"); + } + if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) { + $mbEncoding = mb_internal_encoding(); + mb_internal_encoding('ASCII'); + } else { + $mbEncoding = null; + } + + if ($this->smarty->_parserdebug) { + $this->parser->PrintTrace(); + $this->parser->lex->PrintTrace(); + } + // get tokens from lexer and parse them + while ($this->parser->lex->yylex()) { + if ($this->smarty->_parserdebug) { + echo "<pre>Line {$this->parser->lex->line} Parsing {$this->parser->yyTokenName[$this->parser->lex->token]} Token " . + htmlentities($this->parser->lex->value) . "</pre>"; + } + $this->parser->doParse($this->parser->lex->token, $this->parser->lex->value); + } + + // finish parsing process + $this->parser->doParse(0, 0); + if ($mbEncoding) { + mb_internal_encoding($mbEncoding); + } + // check for unclosed tags + if (count($this->_tag_stack) > 0) { + // get stacked info + list($openTag, $_data) = array_pop($this->_tag_stack); + $this->trigger_template_error("unclosed {$this->smarty->left_delimiter}" . $openTag . + "{$this->smarty->right_delimiter} tag"); + } + // call post compile callbacks + foreach ($this->postCompileCallbacks as $cb) { + $parameter = $cb; + $parameter[ 0 ] = $this; + call_user_func_array($cb[ 0 ], $parameter); + } + // return compiled code + return $this->prefixCompiledCode . $this->parser->retvalue . $this->postfixCompiledCode; + } + + /** + * Register a post compile callback + * - when the callback is called after template compiling the compiler object will be inserted as first parameter + * + * @param callback $callback + * @param array $parameter optional parameter array + * @param string $key optional key for callback + * @param bool $replace if true replace existing keyed callback + * + */ + public function registerPostCompileCallback($callback, $parameter = array(), $key = null, $replace = false) + { + array_unshift($parameter, $callback); + if (isset($key)) { + if ($replace || !isset($this->postCompileCallbacks[ $key ])) { + $this->postCompileCallbacks[ $key ] = $parameter; + } + } else { + $this->postCompileCallbacks[] = $parameter; + } + } + + /** + * Remove a post compile callback + * + * @param string $key callback key + */ + public function unregisterPostCompileCallback($key) + { + unset($this->postCompileCallbacks[ $key ]); + } +} |