From 68d36f27d202eb0ae5e1d9c5098f656eab6de09b Mon Sep 17 00:00:00 2001 From: topnuomi <1130395124@qq.com> Date: Sat, 24 Aug 2019 11:10:31 +0800 Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E9=BB=98=E8=AE=A4=E6=A8=A1?= =?UTF-8?q?=E6=9D=BF=E5=BC=95=E6=93=8E=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../library/template/driver/tags/Engine.php | 242 ++++++++++-------- 1 file changed, 138 insertions(+), 104 deletions(-) diff --git a/framework/library/template/driver/tags/Engine.php b/framework/library/template/driver/tags/Engine.php index 7e5f9b5..74aa6d7 100644 --- a/framework/library/template/driver/tags/Engine.php +++ b/framework/library/template/driver/tags/Engine.php @@ -85,15 +85,6 @@ class Engine return self::$instance; } - /** - * 外部加载扩展标签 - * @param $lib - */ - public function loadTaglib($lib) - { - $this->extend[] = $lib; - } - /** * 处理模板继承 * @param $template @@ -101,11 +92,11 @@ class Engine */ private function parseExtend($template) { - $pattern = '#' . $this->left . 'extend +file=[\'"](.*?)[\'"] +/' . $this->right . '#'; + $pattern = '/' . $this->left . 'extend.*?file=[\'"](.*?)[\'"].*?\/' . $this->right . '/is'; preg_match($pattern, $template, $matches); if (!empty($matches)) { - $blockPattern = '#' . $this->left . 'block +name=[\'"](.*?)[\'"]' . $this->right; - $blockPattern .= '([\s\S]*?)' . $this->left . '\/block' . $this->right . '#'; + $blockPattern = '/' . $this->left . 'block.*?name=[\'"](.*?)[\'"]' . $this->right; + $blockPattern .= '([\s\S]*?)' . $this->left . '\/block' . $this->right . '/is'; // 获得被继承的模板内容 $file = $this->config['dir'] . $matches[1] . '.html'; $extendFileContent = null; @@ -154,14 +145,14 @@ class Engine */ private function parseInclude($template) { - $pattern = '#' . $this->left . 'include +file=[\'"](.*?)[\'"] +/' . $this->right . '#'; + $pattern = '/' . $this->left . 'include.*?file=[\'"](.*?)[\'"].*?\/' . $this->right . '/is'; $template = preg_replace_callback($pattern, function ($result) { - $str = null; + $string = null; $file = $this->config['dir'] . $result[1] . '.html'; if (file_exists($file)) { - $str = file_get_contents($file); + $string = file_get_contents($file); } - return $str; + return $string; }, $template); // 处理多层include if ($this->hasInclude($template)) { @@ -177,7 +168,7 @@ class Engine */ private function hasInclude($template) { - $pattern = '#' . $this->left . 'include +file=[\'"](.*?)[\'"] +/' . $this->right . '#'; + $pattern = '/' . $this->left . 'include.*?file=[\'"](.*?)[\'"].*?\/' . $this->right . '/is'; preg_match($pattern, $template, $matches); return !empty($matches); } @@ -189,7 +180,7 @@ class Engine */ private function parseVars($template) { - preg_match_all('#{(.*?)}#', $template, $matches); + preg_match_all('/{(.*?)}/', $template, $matches); $search = []; $replace = []; for ($i = 0; $i < count($matches[0]); $i++) { @@ -207,6 +198,15 @@ class Engine return $template; } + /** + * 外部加载扩展标签 + * @param $lib + */ + public function loadTaglib($lib) + { + $this->extend[] = $lib; + } + /** * 标签处理 * @param $template @@ -228,18 +228,19 @@ class Engine /** * 获取标签处理结果 - * @param $name - * @param $tagContent - * @return mixed + * @param $method + * @param $tag + * @param string $content + * @return null */ - private function getTagParseResult($name, $tagContent = []) + private function getTagParseResult($method, $tag, $content = '') { - if (method_exists($this, $name)) { - return $this->{$name}($tagContent); + if (method_exists($this, $method)) { + return $this->{$method}($tag, $content); } else { foreach ($this->extendInstance as $item) { - if (method_exists($item, $name)) { - return $item->{$name}($tagContent); + if (method_exists($item, $method)) { + return $item->{$method}($tag, $content); } } return null; @@ -255,31 +256,97 @@ class Engine private function _parseTags($template, $tags) { foreach ($tags as $name => $item) { - $pattern = '#' . $this->left . $name . '(.*?)' . ($item['close'] ? null : '\/') . $this->right . '#'; - preg_match_all($pattern, $template, $matches); - for ($i = 0; $i < count($matches[0]); $i++) { - $tag = []; - if ($item['attr']) { - $attrPattern = '#(.*?)=[\'"](.*?)[\'"]#'; - preg_match_all($attrPattern, $matches[1][$i], $result); - if (isset($result[0]) && !empty($result[0])) { - foreach ($result[1] as $key => $value) { - $tag[trim($value, ' ')] = $result[2][$key]; + $pattern = '/' . $this->left . '(?:(' . $name . ')\b(?>[^' . $this->right . ']*)|\/(' . $name . '))'; + $pattern .= $this->right . '/is'; + if ($item['close']) { + preg_match_all($pattern, $template, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE); + $nodes = []; + if (!empty($matches)) { + // 将匹配结果组合为成对数组 + $start = []; + foreach ($matches as $match) { + // 为空则为结束标签 + if ($match[1][0] == '') { + $tag = array_pop($start); + $nodes[$match[0][1]] = [ + 'name' => $name, + 'start' => $tag[1], + 'end' => $match[0][1], + 'start_str' => $tag[0], + 'end_str' => $match[0][0], + ]; + } else { + $start[] = $match[0]; + } + } + unset($matches, $start); + krsort($nodes); + + if (!empty($nodes)) { + $nodes = array_merge($nodes, []); + $cut = ''; + $method = '_' . $name; + $startArray = []; + foreach ($nodes as $pos => $node) { + $attr = $item['attr'] ? $this->getAttr($node['start_str'], explode(',', $item['attr'])) : []; + // 得到准备替换的值 + $replace = explode($cut, $this->getTagParseResult($method, $attr, $cut)); + while ($startArray) { + $begin = end($startArray); + // 如果当前结束位置大于最后一个开始标签的位置，则跳过，直接去替换这个结束标签 + if ($node['end'] > $begin['start']) { + break; + } else { + // 否则先替换掉这个标签后面的所有开始标签 + $begin = array_pop($startArray); + $template = substr_replace($template, $begin['string'], $begin['start'], $begin['length']); + } + } + $template = substr_replace($template, $replace[1], $node['end'], strlen($node['end_str'])); + $startArray[] = [ + 'start' => $node['start'], + 'length' => strlen($node['start_str']), + 'string' => $replace[0] + ]; + } + // 替换掉最后入栈，未进入while循环的开始标签 + while ($startArray) { + $begin = array_pop($startArray); + $template = substr_replace($template, $begin['string'], $begin['start'], $begin['length']); } } } - $function = ($item['close']) ? '_' . $name . '_start' : '_' . $name; - $template = str_replace($matches[0][$i], $this->getTagParseResult($function, $tag), $template); - } - if ($item['close']) { - $closePattern = '#' . $this->left . '\/' . $name . $this->right . '#'; - $template = preg_replace_callback($closePattern, function () use ($name) { - $function = '_' . $name . '_end'; - return $this->getTagParseResult($function); + } else { // 自闭合标签处理 + $template = preg_replace_callback($pattern, function ($matches) use ($item) { + $method = '_' . $matches[1]; + $attr = $item['attr'] ? $this->getAttr($matches[0], explode(',', $item['attr'])) : []; + return $this->getTagParseResult($method, $attr); }, $template); } } - return preg_replace('#\?>([\r|\n|\s]*?)<\?php#', '', $template); + return preg_replace('/\?>([\r|\n|\s]*?)<\?php/is', '', $template); + } + + /** + * 获取属性 + * @param $string + * @param array $tags + * @return array + */ + private function getAttr($string, $tags = []) + { + $attr = []; + $attrPattern = '/[ +](.*?)=[\'"](.*?)[\'"]/is'; + preg_match_all($attrPattern, $string, $result); + if (isset($result[0]) && !empty($result[0])) { + foreach ($result[1] as $key => $value) { + $name = trim($value, ' '); + if (in_array($name, $tags)) { + $attr[$name] = $result[2][$key]; + } + } + } + return $attr; } /** @@ -289,15 +356,15 @@ class Engine */ private function parseRaw($template) { - $pattern = '#' . $this->left . 'raw' . $this->right . '([\s\S]*?)'; - $pattern .= $this->left . '\/raw' . $this->right . '#'; + $pattern = '/' . $this->left . 'raw' . $this->right . '([\s\S]*?)'; + $pattern .= $this->left . '\/raw' . $this->right . '/is'; $template = preg_replace_callback($pattern, function ($matches) { return str_replace([ $this->left, $this->right, '{', '}' ], [ - '', - '<-raw!--', '--raw->' + '', + '' ], $matches[1]); }, $template); return $template; @@ -311,8 +378,8 @@ class Engine public function returnRaw($template) { $template = str_replace([ - '', - '<-raw!--', '--raw->' + '', + '' ], [ $this->left, $this->right, '{', '}' @@ -322,47 +389,35 @@ class Engine /** * php标签开始 + * @param $tag + * @param $content * @return string */ - private function _php_start() + private function _php($tag, $content) { - return ''; + return ''; } /** * if标签 * @param $tag + * @param $content * @return string */ - private function _if_start($tag) + private function _if($tag, $content) { - return ''; + $parse = ''; + $parse .= $content; + $parse .= ''; + return $parse; } /** - * if标签结束 - * @return string - */ - private function _if_end() - { - return ''; - } - - /** - * else标签（支持条件） + * else标签 * @param $tag * @return string */ - private function _else_start($tag) + private function _else($tag) { if (isset($tag['condition'])) { $parse = ''; @@ -375,44 +430,23 @@ class Engine /** * volist标签 * @param $tag + * @param $content * @return string */ - private function _volist_start($tag) + private function _volist($tag, $content) { - if (substr($tag['name'], 0, 1) == ':') { - $name = substr($tag['name'], 1); - } else { - $name = '$' . $tag['name']; - } - $key = (empty($tag['key'])) ? null : '$' . $tag['key'] . ' = 0;'; - $parse = ''; + $parse = '' : '') . '$' . $tag['id'] . '): '; + $parse .= (isset($tag['key']) ? '$' . $tag['key'] . '++;' : '') . ' ?>'; + $parse .= $content; + $parse .= ''; return $parse; } - /** - * volist标签结束 - * @return string - */ - private function _volist_end() - { - return ''; - } - - /** - * assign标签 - * @param $tag - * @return string - */ - private function _assign($tag) - { - return ''; - } - /** * 获取编译后的内容 * @param $template - * @return bool|mixed|null|string|string[] + * @return mixed|null|string|string[] */ public function compile($template) {