www.gusucode.com > baigo CMS PHP开源网站管理系统 v1.2.2源码程序 > baigocms_v1.2.2/bg_core/smarty/sysplugins/smarty_internal_compile_block.php
<?php
/**
* Smarty Internal Plugin Compile Block
*
* Compiles the {block}{/block} tags
*
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews
*/
/**
* Smarty Internal Plugin Compile Block Class
*
* @package Smarty
* @subpackage Compiler
*/
class Smarty_Internal_Compile_Block extends Smarty_Internal_CompileBase {
/**
* Attribute definition: Overwrites base class.
*
* @var array
* @see Smarty_Internal_CompileBase
*/
public $required_attributes = array('name');
/**
* Attribute definition: Overwrites base class.
*
* @var array
* @see Smarty_Internal_CompileBase
*/
public $shorttag_order = array('name', 'hide');
/**
* Attribute definition: Overwrites base class.
*
* @var array
* @see Smarty_Internal_CompileBase
*/
public $optional_attributes = array('hide');
/**
* Compiles code for the {block} tag
*
* @param array $args array with attributes from parser
* @param object $compiler compiler object
* @return boolean true
*/
public function compile($args, $compiler) {
// check and get attributes
$_attr = $this->getAttributes($compiler, $args);
$save = array($_attr, $compiler->parser->current_buffer, $compiler->nocache, $compiler->smarty->merge_compiled_includes, $compiler->merged_templates, $compiler->smarty->merged_templates_func, $compiler->template->properties, $compiler->template->has_nocache_code);
$this->openTag($compiler, 'block', $save);
if ($_attr['nocache'] == true) {
$compiler->nocache = true;
}
// set flag for {block} tag
$compiler->inheritance = true;
// must merge includes
$compiler->smarty->merge_compiled_includes = true;
$compiler->parser->current_buffer = new _smarty_template_buffer($compiler->parser);
$compiler->has_code = false;
return true;
}
/**
* Save or replace child block source by block name during parsing
*
* @param string $block_content block source content
* @param string $block_tag opening block tag
* @param object $template template object
* @param string $filepath filepath of template source
*/
public static function saveBlockData($block_content, $block_tag, $template, $filepath) {
$_rdl = preg_quote($template->smarty->right_delimiter);
$_ldl = preg_quote($template->smarty->left_delimiter);
if (!$template->smarty->auto_literal) {
$al = '\s*';
} else {
$al = '';
}
if (0 == preg_match("!({$_ldl}{$al}block\s+)(name=)?(\w+|'.*'|\".*\")(\s*?)?((append|prepend|nocache)?(\s*)?(hide)?)?(\s*{$_rdl})!", $block_tag, $_match)) {
$error_text = 'Syntax Error in template "' . $template->source->filepath . '" "' . htmlspecialchars($block_tag) . '" illegal options';
throw new SmartyCompilerException($error_text);
} else {
$_name = trim($_match[3], '\'"');
if ($_match[8] != 'hide' || isset($template->block_data[$_name])) { // replace {$smarty.block.child}
// get nested block tags
if (0 != preg_match_all("!({$_ldl}{$al}block\s+)(name=)?(\w+|'.*'|\".*\")([\s\S]*?)(hide)?(\s*{$_rdl})([\s\S]*?)(.*)?({$_ldl}{$al}/block\s*{$_rdl})!", $block_content, $_match2)) {
foreach ($_match2[3] as $key => $name) {
// get it's replacement
$_name2 = trim($name, '\'"');
if ($_match2[5][$key] != 'hide' || isset($template->block_data[$_name2])) {
if (isset($template->block_data[$_name2])) {
$replacement = $template->block_data[$_name2]['source'];
} else {
$replacement = '';
}
// replace {$smarty.block.child} tag
if (preg_match("!{$_ldl}{$al}\\\$smarty\.block\.child\s*{$_rdl}!",$_match2[7][$key])) {
$replacement = preg_replace("!({$_ldl}{$al}\\\$smarty\.block\.child\s*{$_rdl})!", $replacement, $_match2[7][$key]);
$block_content = preg_replace("!(({$_ldl}{$al}block)(.*)?{$name}(.*)?({$_rdl}[\s\S]*?{$_ldl}{$al}/block\s*{$_rdl}))!", $replacement, $block_content);
}
if (preg_match("!{$_ldl}{$al}\\\$smarty\.block\.child\s*{$_rdl}!",$_match2[8][$key])) {
$replacement = preg_replace("!{$_ldl}{$al}\\\$smarty\.block\.child\s*{$_rdl}!", $replacement, $_match2[8][$key]);
$block_content = preg_replace("!(({$_ldl}{$al}block)(.*)?{$name}(.*)?({$_rdl})(.*)?({$_ldl}{$al}/block\s*{$_rdl}))!", $replacement, $block_content);
}
} else {
// remove hidden blocks
$block_content = preg_replace("!(({$_ldl}{$al}block)(.*)?{$name}(.*)?({$_rdl}[\s\S]*?{$_ldl}{$al}/block\s*{$_rdl}))!", '', $block_content);
}
}
}
// do we have not nested {$smart.block.child}
if (0 != preg_match("!({$_ldl}{$al}\\\$smarty\.block\.child\s*{$_rdl})!", $block_content, $_match2)) {
// get child replacement for this block
if (isset($template->block_data[$_name])) {
$replacement = $template->block_data[$_name]['source'];
unset($template->block_data[$_name]);
} else {
$replacement = '';
}
$block_content = preg_replace("!({$_ldl}{$al}\\\$smarty\.block\.child\s*{$_rdl})!", $replacement, $block_content);
}
if (isset($template->block_data[$_name])) {
if (strpos($template->block_data[$_name]['source'], '%%%%SMARTY_PARENT%%%%') !== false) {
$template->block_data[$_name]['source'] =
str_replace('%%%%SMARTY_PARENT%%%%', $block_content, $template->block_data[$_name]['source']);
} elseif ($template->block_data[$_name]['mode'] == 'prepend') {
$template->block_data[$_name]['source'] .= $block_content;
} elseif ($template->block_data[$_name]['mode'] == 'append') {
$template->block_data[$_name]['source'] = $block_content . $template->block_data[$_name]['source'];
}
} else {
$template->block_data[$_name]['source'] = $block_content;
$template->block_data[$_name]['file'] = $filepath;
}
if ($_match[6] == 'append') {
$template->block_data[$_name]['mode'] = 'append';
} elseif ($_match[6] == 'prepend') {
$template->block_data[$_name]['mode'] = 'prepend';
} else {
$template->block_data[$_name]['mode'] = 'replace';
}
}
}
}
/**
* Compile saved child block source
*
* @param object $compiler compiler object
* @param string $_name optional name of child block
* @return string compiled code of schild block
*/
public static function compileChildBlock($compiler, $_name = null) {
$_output = '';
// if called by {$smarty.block.child} we must search the name of enclosing {block}
if ($_name == null) {
$stack_count = count($compiler->_tag_stack);
while (--$stack_count >= 0) {
if ($compiler->_tag_stack[$stack_count][0] == 'block') {
$_name = trim($compiler->_tag_stack[$stack_count][1][0]['name'], "'\"");
break;
}
}
// flag that child is already compile by {$smarty.block.child} inclusion
$compiler->template->block_data[$_name]['compiled'] = true;
}
if ($_name == null) {
$compiler->trigger_template_error('{$smarty.block.child} used out of context', $compiler->lex->taglineno);
}
// undefined child?
if (!isset($compiler->template->block_data[$_name]['source'])) {
return '';
}
$_tpl = new Smarty_Internal_template('string:' . $compiler->template->block_data[$_name]['source'], $compiler->smarty, $compiler->template, $compiler->template->cache_id,
$compiler->template->compile_id = null, $compiler->template->caching, $compiler->template->cache_lifetime);
$_tpl->variable_filters = $compiler->template->variable_filters;
$_tpl->properties['nocache_hash'] = $compiler->template->properties['nocache_hash'];
$_tpl->source->filepath = $compiler->template->block_data[$_name]['file'];
$_tpl->allow_relative_path = true;
if ($compiler->nocache) {
$_tpl->compiler->forceNocache = 2;
} else {
$_tpl->compiler->forceNocache = 1;
}
$_tpl->compiler->suppressHeader = true;
$_tpl->compiler->suppressTemplatePropertyHeader = true;
$_tpl->compiler->suppressMergedTemplates = true;
if (strpos($compiler->template->block_data[$_name]['source'], '%%%%SMARTY_PARENT%%%%') !== false) {
$_output = str_replace('%%%%SMARTY_PARENT%%%%', $compiler->parser->current_buffer->to_smarty_php(), $_tpl->compiler->compileTemplate($_tpl));
} elseif ($compiler->template->block_data[$_name]['mode'] == 'prepend') {
$_output = $_tpl->compiler->compileTemplate($_tpl) . $compiler->parser->current_buffer->to_smarty_php();
} elseif ($compiler->template->block_data[$_name]['mode'] == 'append') {
$_output = $compiler->parser->current_buffer->to_smarty_php() . $_tpl->compiler->compileTemplate($_tpl);
} elseif (!empty($compiler->template->block_data[$_name])) {
$_output = $_tpl->compiler->compileTemplate($_tpl);
}
$compiler->template->properties['file_dependency'] = array_merge($compiler->template->properties['file_dependency'], $_tpl->properties['file_dependency']);
$compiler->template->properties['function'] = array_merge($compiler->template->properties['function'], $_tpl->properties['function']);
$compiler->merged_templates = array_merge($compiler->merged_templates, $_tpl->compiler->merged_templates);
$compiler->template->variable_filters = $_tpl->variable_filters;
if ($_tpl->has_nocache_code) {
$compiler->template->has_nocache_code = true;
}
foreach ($_tpl->required_plugins as $key => $tmp1) {
if ($compiler->nocache && $compiler->template->caching) {
$code = 'nocache';
} else {
$code = $key;
}
foreach ($tmp1 as $name => $tmp) {
foreach ($tmp as $type => $data) {
$compiler->template->required_plugins[$code][$name][$type] = $data;
}
}
}
unset($_tpl);
return $_output;
}
}
/**
* Smarty Internal Plugin Compile BlockClose Class
*
* @package Smarty
* @subpackage Compiler
*/
class Smarty_Internal_Compile_Blockclose extends Smarty_Internal_CompileBase {
/**
* Compiles code for the {/block} tag
*
* @param array $args array with attributes from parser
* @param object $compiler compiler object
* @return string compiled code
*/
public function compile($args, $compiler) {
$compiler->has_code = true;
// check and get attributes
$_attr = $this->getAttributes($compiler, $args);
$saved_data = $this->closeTag($compiler, array('block'));
$_name = trim($saved_data[0]['name'], "\"'");
if (isset($compiler->template->block_data[$_name]) && !isset($compiler->template->block_data[$_name]['compiled'])) {
// restore to status before {block} tag as new subtemplate code of parent {block} is not needed
// TODO: Below code was disabled in 3.1.8 because of problems with {include} in nested {block} tags in child templates
// combined with append/prepend or $smarty.block.parent
// For later versions it should be checked under which conditions it could run for optimisation
//
//$compiler->merged_templates = $saved_data[4];
//$compiler->smarty->merged_templates_func = $saved_data[5];
//$compiler->template->properties = $saved_data[6];
//$compiler->template->has_nocache_code = $saved_data[7];
$_output = Smarty_Internal_Compile_Block::compileChildBlock($compiler, $_name);
} else {
if (isset($saved_data[0]['hide']) && !isset($compiler->template->block_data[$_name]['source'])) {
$_output = '';
} else {
$_output = $compiler->parser->current_buffer->to_smarty_php();
}
unset($compiler->template->block_data[$_name]['compiled']);
}
// reset flags
$compiler->parser->current_buffer = $saved_data[1];
$compiler->nocache = $saved_data[2];
$compiler->smarty->merge_compiled_includes = $saved_data[3];
// reset flag for {block} tag
$compiler->inheritance = false;
// $_output content has already nocache code processed
$compiler->suppressNocacheProcessing = true;
return $_output;
}
}
?>