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Template-engine
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修改加载自定义标签库的方式

This commit is contained in:
TOP糯米 2019-07-28 16:06:38 +08:00
parent b4d226517f
commit a2e2602c59
5 changed files with 194 additions and 193 deletions
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4
aa7cc8f2dc7ba35fd85943e9db00190b.php → 2ec7facf63614beb8c7f02cc2378e1cd.php
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@ -6,14 +6,14 @@
</head> </head>
<body> <body>
<?php foreach ($array as $vo): echo $vo; endforeach; ?> <?php foreach ($array as $vo): echo ($vo); endforeach; ?>
将上面的内容放入raw标签： 将上面的内容放入raw标签：
<volist name="array" id="vo"> <volist name="array" id="vo">
{$vo} {$vo}
</volist> </volist>
<?php if ($var == 1): echo time(); endif; ?> <?php echo ($a); if ($var == 1): echo (time()); if ($var1 == 2): echo (time()); endif; endif; ?>
扩展的标签： 扩展的标签：
<?php echo 'Hello'; ?> <?php echo 'Hello'; ?>

4
demo/index.html
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@ -12,8 +12,12 @@
{$vo} {$vo}
</volist> </volist>
</raw> </raw>
{$a}
<if condition="$var == 1"> <if condition="$var == 1">
{:time()} {:time()}
<if condition="$var1 == 2">
{:time()}
</if>
</if> </if>
扩展的标签： 扩展的标签：
<say what="Hello" /> <say what="Hello" />

25
script.php
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@ -3,24 +3,15 @@ require 'template/Engine.php';
require 'template/Extend.php'; require 'template/Extend.php';
$content = file_get_contents('./demo/index.html'); $content = file_get_contents('./demo/index.html');
$t1 = microtime(true);
echo "\r\n\r\n原始内容\r\n\r\n"; $template = \template\Engine::instance();
print_r($content); // 加载自定义标签库
$template->loadTaglib(\template\Extend::class);
$template = new \template\Engine(); // 编译
// 默认编译结果
$result = $template->compile($content); $result = $template->compile($content);
echo "\r\n\r\n第一次结果\r\n\r\n";
print_r($result);
// 开始处理用户定义标签库
$extend = new \template\Extend();
$result = $extend->parseCustomizeTags($result);
// 用户定义标签库处理结束
// 最后还原raw标签 // 最后还原raw标签
$result = $template->returnRaw($result); $result = $template->returnRaw($result);
$t2 = microtime(true);
echo '执行时间' . ($t2 - $t1) . "\r\n";
echo "\r\n\r\n第二次结果\r\n\r\n"; file_put_contents(md5(time()) . '.php', $result);
print_r($result);

346
template/Engine.php
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@ -9,6 +9,12 @@ namespace template;
*/ */
class Engine class Engine
{ {
/**
* @var null 单一实例
*/
private static $instance = null;
/** /**
* @var string 左定界符 * @var string 左定界符
*/ */
@ -28,23 +34,26 @@ class Engine
* @var null 模板配置 * @var null 模板配置
*/ */
protected $config = null; protected $config = null;
/** /**
* @var null 模板路径 * @var null 扩展标签库
*/ */
private $viewDir = null; private $extend = [];
/**
* @var array 扩展标签库类实例
*/
private $extendInstance = [];
/** /**
* @var array 默认标签定义 * @var array 默认标签定义
*/ */
private $defaultTags = [ private $defaultTags = [
'php' => ['attr' => null, 'close' => 1],
'if' => ['attr' => 'condition', 'close' => 1], 'if' => ['attr' => 'condition', 'close' => 1],
'else' => ['attr' => 'condition', 'close' => 0], 'else' => ['attr' => 'condition', 'close' => 0],
'volist' => ['attr' => 'name,id,key', 'close' => 1], 'volist' => ['attr' => 'name,id,key', 'close' => 1],
'assign' => ['attr' => 'name,value', 'close' => 0], 'assign' => ['attr' => 'name,value', 'close' => 0]
'switch' => ['attr' => 'name', 'close' => 1],
'case' => ['attr' => 'value', 'close' => 1],
'default' => ['attr' => '', 'close' => 1]
]; ];
/** /**
@ -52,24 +61,44 @@ class Engine
* Engine constructor. * Engine constructor.
* @throws \Exception * @throws \Exception
*/ */
public function __construct() private function __construct()
{ {
// 仅作示例，请在外部传入模板目录 // $this->config = Register::get('Config')->get('view');
$this->viewDir = './demo/'; $this->config['dir'] = './demo/';
if (isset($this->config['left']) && $this->config['left']) {
$this->left = $this->config['left'];
}
if (isset($this->config['right']) && $this->config['right']) {
$this->right = $this->config['right'];
}
}
/**
* 获取类单一实例
* @return null|Engine
*/
public static function instance()
{
if (!self::$instance) {
self::$instance = new self();
}
return self::$instance;
} }
/** /**
* 处理模板继承 * 处理模板继承
* @param $template
* @return mixed
*/ */
private function parseExtend($tmpl) private function parseExtend($template)
{ {
$pattern = '#' . $this->left . 'extend +file=[\'"](.*?)[\'"] +/' . $this->right . '#'; $pattern = '#' . $this->left . 'extend +file=[\'"](.*?)[\'"] +/' . $this->right . '#';
preg_match($pattern, $tmpl, $matches); preg_match($pattern, $template, $matches);
if (!empty($matches)) { if (!empty($matches)) {
$blockPattern = '#' . $this->left . 'block +name=[\'"](.*?)[\'"]' . $this->right; $blockPattern = '#' . $this->left . 'block +name=[\'"](.*?)[\'"]' . $this->right;
$blockPattern .= '([\s\S]*?)' . $this->left . '\/block' . $this->right . '#'; $blockPattern .= '([\s\S]*?)' . $this->left . '\/block' . $this->right . '#';
// 获得被继承的模板内容 // 获得被继承的模板内容
$file = $this->viewDir . $matches[1] . '.html'; $file = $this->config['dir'] . $matches[1] . '.html';
$extendFileContent = null; $extendFileContent = null;
if (file_exists($file)) { if (file_exists($file)) {
$extendFileContent = file_get_contents($file); $extendFileContent = file_get_contents($file);
@ -80,7 +109,7 @@ class Engine
// 被继承模板中的块 // 被继承模板中的块
preg_match_all($blockPattern, $extendFileContent, $extendResult); preg_match_all($blockPattern, $extendFileContent, $extendResult);
// 继承模板中的块 // 继承模板中的块
preg_match_all($blockPattern, $tmpl, $templateResult); preg_match_all($blockPattern, $template, $templateResult);
// 组合搜索的块数组 // 组合搜索的块数组
$search = []; $search = [];
$defaultContent = []; $defaultContent = [];
@ -104,172 +133,219 @@ class Engine
$replaceArray[] = $defaultContent[$key]; $replaceArray[] = $defaultContent[$key];
} }
} }
$tmpl = str_replace($searchArray, $replaceArray, $extendFileContent); $template = str_replace($searchArray, $replaceArray, $extendFileContent);
} }
return $tmpl; return $template;
} }
/** /**
* 处理include标签 * 处理include标签
* @return bool * @param $template
* @return null|string|string[]
*/ */
private function parseInclude($tmpl) private function parseInclude($template)
{ {
$pattern = '#' . $this->left . 'include +file=[\'"](.*?)[\'"] +/' . $this->right . '#'; $pattern = '#' . $this->left . 'include +file=[\'"](.*?)[\'"] +/' . $this->right . '#';
$tmpl = preg_replace_callback($pattern, function ($result) { $template = preg_replace_callback($pattern, function ($result) {
$str = null; $str = null;
$file = $this->viewDir . $result[1] . '.html'; $file = $this->config['dir'] . $result[1] . '.html';
if (file_exists($file)) { if (file_exists($file)) {
$str = file_get_contents($file); $str = file_get_contents($file);
} }
return $str; return $str;
}, $tmpl); }, $template);
// 处理多层include // 处理多层include
if ($this->hasInclude($tmpl)) { if ($this->hasInclude($template)) {
$tmpl = $this->parseInclude($tmpl); $template = $this->parseInclude($template);
} }
return $tmpl; return $template;
} }
/** /**
* 检测是否含有include * 检测是否含有include
* @param $tmpl * @param $template
* @return bool * @return bool
*/ */
private function hasInclude($tmpl) private function hasInclude($template)
{ {
$pattern = '#' . $this->left . 'include +file=[\'"](.*?)[\'"] +/' . $this->right . '#'; $pattern = '#' . $this->left . 'include +file=[\'"](.*?)[\'"] +/' . $this->right . '#';
preg_match($pattern, $tmpl, $matches); preg_match($pattern, $template, $matches);
return !empty($matches); return !empty($matches);
} }
/** /**
* 分析参数以及函数输出 * 分析参数以及函数输出
* @param $template
* @return mixed
*/ */
private function parseVars($tmpl) private function parseVars($template)
{ {
preg_match_all('#{(.*?)}#', $tmpl, $matches); preg_match_all('#{(.*?)}#', $template, $matches);
$search = []; $search = [];
$replace = []; $replace = [];
for ($i = 0; $i < count($matches[0]); $i++) { for ($i = 0; $i < count($matches[0]); $i++) {
$start = substr($matches[1][$i], 0, 1); $start = substr($matches[1][$i], 0, 1);
$search[] = $matches[0][$i];
if ($start == '$') { if ($start == '$') {
$search[] = $matches[0][$i]; $replace[] = '<?php echo (' . $matches[1][$i] . '); ?>';
$replace[] = '<?php echo ' . $matches[1][$i] . '; ?>';
} elseif ($start == ':') { } elseif ($start == ':') {
$search[] = $matches[0][$i]; $replace[] = '<?php echo (' . ltrim($matches[1][$i], ':') . '); ?>';
$replace[] = '<?php echo ' . ltrim($matches[1][$i], ':') . '; ?>'; } else {
$replace[] = $matches[0][$i];
} }
} }
$tmpl = str_replace($search, $replace, $tmpl); $template = str_replace($search, $replace, $template);
return $tmpl; return $template;
} }
/** /**
* 处理用户自定义标签 * 外部加载扩展标签
* @param $tmpl * @param $lib
* @return null|string|string[]
*/ */
public function parseCustomizeTags($tmpl) public function loadTaglib($lib)
{ {
return $this->parseTags($tmpl, $this->tags); $this->extend[] = $lib;
} }
/** /**
* 处理默认的标签 * 标签处理
* @param $tmpl * @param $template
* @return null|string|string[] * @return null|string|string[]
*/ */
private function parseDefaultTags($tmpl) private function parseTags($template)
{ {
return $this->parseTags($tmpl, $this->defaultTags); foreach ($this->extend as $lib) {
$this->extendInstance[$lib] = $object = new $lib;
foreach ($object->tags as $name => $tag) {
if (!isset($this->tags[$name]) && !isset($this->defaultTags[$name])) {
$this->tags[$name] = $tag;
}
}
}
$tags = array_merge($this->defaultTags, $this->tags);
return $this->_parseTags($template, $tags);
}
/**
* 获取标签处理结果
* @param $name
* @param $tagContent
* @return mixed
*/
private function getTagParseResult($name, $tagContent = [])
{
if (method_exists($this, $name)) {
return $this->{$name}($tagContent);
} else {
foreach ($this->extendInstance as $item) {
if (method_exists($item, $name)) {
return $item->{$name}($tagContent);
}
}
return null;
}
} }
/** /**
* 进行标签处理 * 进行标签处理
* @param $tmpl * @param $template
* @param $tags * @param $tags
* @return null|string|string[] * @return null|string|string[]
*/ */
private function parseTags($tmpl, $tags) private function _parseTags($template, $tags)
{ {
foreach ($tags as $name => $item) { foreach ($tags as $name => $item) {
$attr = ($item['attr']) ? ' +(.*?)' : null; $pattern = '#' . $this->left . $name . '(.*?)' . ($item['close'] ? null : '\/') . $this->right . '#';
$pattern = '#' . $this->left . $name . $attr . ($item['close'] ? $this->right : '\/' . $this->right . '#'); preg_match_all($pattern, $template, $matches);
if ($item['close']) {
$pattern .= '([\s\S]*?)' . $this->left . '\/' . $name . $this->right . '#';
}
preg_match_all($pattern, $tmpl, $matches);
for ($i = 0; $i < count($matches[0]); $i++) { for ($i = 0; $i < count($matches[0]); $i++) {
$attrPattern = '#(.*?)=[\'"](.*?)[\'"]#';
preg_match_all($attrPattern, $matches[1][$i], $result);
$tag = []; $tag = [];
if (!empty($result)) { if ($item['attr']) {
foreach ($result[1] as $key => $value) { $attrPattern = '#(.*?)=[\'"](.*?)[\'"]#';
$tag[trim($value, ' ')] = $result[2][$key]; preg_match_all($attrPattern, $matches[1][$i], $result);
if (isset($result[0]) && !empty($result[0])) {
foreach ($result[1] as $key => $value) {
$tag[trim($value, ' ')] = $result[2][$key];
}
} }
} }
if ($item['close']) { $function = ($item['close']) ? '_' . $name . '_start' : '_' . $name;
$tagContent = isset($matches[2][$i]) ? $matches[2][$i] : (($attr) ? null : $matches[1][$i]); $template = str_replace($matches[0][$i], $this->getTagParseResult($function, $tag), $template);
$content = $this->{'_' . $name . '_start'}($tag, $tagContent); }
if ($item['close']) { if ($item['close']) {
$content .= $this->{'_' . $name . '_end'}($tag, $tagContent); $closePattern = '#' . $this->left . '\/' . $name . $this->right . '#';
} $template = preg_replace_callback($closePattern, function () use ($name) {
} else { $function = '_' . $name . '_end';
$content = $this->{'_' . $name . '_start'}($tag); return $this->getTagParseResult($function);
} }, $template);
$tmpl = str_replace($matches[0][$i], $content, $tmpl);
} }
} }
return preg_replace('#\?>([\r|\n|\s]*?)<\?php#', '', $tmpl); return preg_replace('#\?>([\r|\n|\s]*?)<\?php#', '', $template);
} }
/** /**
* 处理raw标签 * 处理raw标签
* @param $tmpl * @param $template
* @return null|string|string[] * @return null|string|string[]
*/ */
private function parseRaw($tmpl) private function parseRaw($template)
{ {
$pattern = '#' . $this->left . 'raw' . $this->right . '([\s\S]*?)'; $pattern = '#' . $this->left . 'raw' . $this->right . '([\s\S]*?)';
$pattern .= $this->left . '\/raw' . $this->right . '#'; $pattern .= $this->left . '\/raw' . $this->right . '#';
$tmpl = preg_replace_callback($pattern, function ($matches) { $template = preg_replace_callback($pattern, function ($matches) {
return str_replace([ return str_replace([
$this->left, $this->right, $this->left, $this->right,
'{', '}' '{', '}'
], [ ], [
'<raw!--', '--raw>', '<raw!--', '--raw>',
'{raw!--', '--raw}' '<-raw!--', '--raw->'
], $matches[1]); ], $matches[1]);
}, $tmpl); }, $template);
return $tmpl; return $template;
} }
/** /**
* 还原raw * 还原raw
* @param $tmpl * @param $template
* @return null|string|string[] * @return mixed
*/ */
public function returnRaw($tmpl) public function returnRaw($template)
{ {
$pattern = '#[{|<]raw!--([\s\S]*?)--raw[>|}]#'; $template = str_replace([
$tmpl = preg_replace_callback($pattern, function ($matches) { '<raw!--', '--raw>',
$left = substr($matches[0], 0, 1); '<-raw!--', '--raw->'
$right = substr($matches[0], -1); ], [
return $left . $matches[1] . $right; $this->left, $this->right,
}, $tmpl); '{', '}'
return $tmpl; ], $template);
return $template;
}
/**
* php标签开始
* @return string
*/
private function _php_start()
{
return '<?php ';
}
/**
* php标签结束
* @return string
*/
private function _php_end()
{
return ' ?>';
} }
/** /**
* if标签 * if标签
* @param $tag * @param $tag
* @param $content
* @return string * @return string
*/ */
private function _if_start($tag, $content) private function _if_start($tag)
{ {
return '<?php if (' . $tag['condition'] . '): ?>' . $content; return '<?php if (' . $tag['condition'] . '): ?>';
} }
/** /**
@ -299,10 +375,9 @@ class Engine
/** /**
* volist标签 * volist标签
* @param $tag * @param $tag
* @param $content
* @return string * @return string
*/ */
private function _volist_start($tag, $content) private function _volist_start($tag)
{ {
if (substr($tag['name'], 0, 1) == ':') { if (substr($tag['name'], 0, 1) == ':') {
$name = substr($tag['name'], 1); $name = substr($tag['name'], 1);
@ -311,7 +386,7 @@ class Engine
} }
$key = (empty($tag['key'])) ? null : '$' . $tag['key'] . ' = 0;'; $key = (empty($tag['key'])) ? null : '$' . $tag['key'] . ' = 0;';
$parse = '<?php ' . $key . ' foreach (' . $name . ' as $' . $tag['id'] . '): '; $parse = '<?php ' . $key . ' foreach (' . $name . ' as $' . $tag['id'] . '): ';
$parse .= ($key ? '$' . $tag['key'] . '++;' : null) . ' ?>' . $content; $parse .= ($key ? '$' . $tag['key'] . '++;' : null) . ' ?>';
return $parse; return $parse;
} }
@ -329,99 +404,30 @@ class Engine
* @param $tag * @param $tag
* @return string * @return string
*/ */
private function _assign_start($tag) private function _assign($tag)
{ {
return '<?php $' . $tag['name'] . ' = ' . $tag['value'] . '; ?>'; return '<?php $' . $tag['name'] . ' = ' . $tag['value'] . '; ?>';
} }
/**
* switch标签
* @param $tag
* @param $content
* @return string
*/
private function _switch_start($tag, $content)
{
$parse = '<?php switch($' . $tag['name'] . '): ?>' . $content;
return $parse;
}
/**
* switch标签结束
* @return string
*/
private function _switch_end()
{
$parse = '<?php endswitch; ?>';
return $parse;
}
/**
* case标签
* @param $tag
* @param $content
* @return string
*/
private function _case_start($tag, $content)
{
if (is_numeric($tag['value'])) {
$caseVar = $tag['value'];
} else {
$caseVar = '\'' . $tag['value'] . '\'';
}
$parse = '<?php case ' . $caseVar . ': ?>' . $content;
return $parse;
}
/**
* case标签结束
* @return string
*/
private function _case_end()
{
$parse = '<?php break; ?>';
return $parse;
}
/**
* default标签
* @param $tag
* @param $content
* @return string
*/
private function _default_start($tag, $content)
{
$parse = '<?php default: ?>' . $content;
return $parse;
}
/**
* default标签结束
* @return string
*/
private function _default_end()
{
$parse = '<?php break; ?>';
return $parse;
}
/** /**
* 获取编译后的内容 * 获取编译后的内容
* @param $tmpl * @param $template
* @return bool|mixed|null|string|string[] * @return bool|mixed|null|string|string[]
*/ */
public function compile($tmpl) public function compile($template)
{ {
$tmpl = $this->parseRaw($tmpl); // 处理raw标签
$template = $this->parseRaw($template);
// 处理模板继承标签 // 处理模板继承标签
$tmpl = $this->parseExtend($tmpl); $template = $this->parseExtend($template);
// 处理include标签 // 处理include标签
$tmpl = $this->parseInclude($tmpl); $template = $this->parseInclude($template);
// 处理变量以及函数 // 处理变量以及函数
$tmpl = $this->parseVars($tmpl); $template = $this->parseVars($template);
// 处理定义的标签 // 处理定义的标签
$tmpl = $this->parseDefaultTags($tmpl); $template = $this->parseTags($template);
return $tmpl;
return $template;
} }
} }

8
template/Extend.php
View File

@ -2,13 +2,13 @@
namespace template; namespace template;
class Extend extends Engine class Extend
{ {
protected $tags = [ public $tags = [
'say' => ['attr' => 'what', 'close' => 0] 'say' => ['attr' => 'what', 'close' => 0]
]; ];
protected function _say_start($tag) public function _say($tag)
{ {
return '<?php echo \''. $tag['what'] .'\'; ?>'; return '<?php echo \''. $tag['what'] .'\'; ?>';
} }