improve the parse method and add the inverse parse

faitheir · Apr 24, 2020 · eb245de · eb245de
1 parent 6a8f8b4
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diff --git a/README.md b/README.md
@@ -1,12 +1,14 @@
 # dom-parser
 
-A PHP library , use to parse normal and special DOM string like vue react .  to DOM Tree .
+A PHP library , use to parse normal and special DOM string like vue react. to DOM Tree. 
+By modifying config variables, can parse other HTML-like markup languages string too.
 
 ## Installation
     composer require faitheir/dom-parser
 
 ## Base Usage
-
+#### Parse Method
+parse Dom string to DOM Tree (\Faitheir\DomParser\Node $dom).
 ```php
 $html = <<< 'HTML'
     <template>
@@ -37,4 +39,29 @@ $parser     = new \Faitheir\DomParser\DomParser();
 $dom        = $parser->setConfig([])->parse($html);
 
 print_r($dom);
+```
+
+#### Inverse Parse Method
+parse Dom Tree(\Faitheir\DomParser\Node $dom) to DOM string.
+```php
+$string = $parser->setConfig([])->invParse($dom);
+or
+Config::getInstance()->setConfig([
+    'tag_indent' => '  '
+]);
+$string = (string) $dom;
+```
+
+## Config Method
+```php
+# demo
+# match string '{{php id="world"}}'
+
+$configs = [
+    'start_tag_reg'  => '/^\s*{{([^}\s\/!]+)/is'
+];
+# other confs see DomPaser/Config.php
+
+$parser   = $parser->setConfig($configs);
+$dom      = $parser->parse($html);
 ```
diff --git a/examples/inverse_parse_com.php b/examples/inverse_parse_com.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: WangFei
+ * Date: 4/24/2020
+ * Time: 5:37 PM
+ */
+
+require_once '../vendor/autoload.php';
+
+$parser = new \Faitheir\DomParser\DomParser();
+
+$html = <<< 'HTML'
+    <template>
+        <!-- doc hello 
+         world 
+         -->
+        <view  class="container"  id="main-view" data-genid="12323">
+            <navigator url="/pages/show?id=1">
+                <image src="../../static/images/home-by.jpg" class="hello world" mode="widthFix"></image>
+            </navigator>
+            <view class="layout">
+                <view class="scan">
+                    <text class="iconfont icon-saoyisao" @click="scan()"></text>
+                </view>
+                <search-box class="search" :lable="search_lable" :value="serch" />
+                <view class="view-box">
+                    Hello World !
+                </view>
+            </view>
+        </view>
+    </template>
+HTML;
+
+$dom    = $parser->parse($html);
+
+$string = $parser->invParse($dom);
+echo $string;
diff --git a/examples/parse_dom_string.php b/examples/parse_dom_string.php
@@ -0,0 +1,39 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: WangFei
+ * Date: 4/24/2020
+ * Time: 5:34 PM
+ */
+
+require_once '../vendor/autoload.php';
+
+$parser = new \Faitheir\DomParser\DomParser();
+
+$html = <<< 'HTML'
+    <template>
+        <!-- doc hello 
+         world 
+         -->
+        <view  class="container"  id="main-view" data-genid="12323">
+            <navigator url="/pages/show?id=1">
+                <image src="../../static/images/home-by.jpg" class="hello world" mode="widthFix"></image>
+            </navigator>
+            <view class="layout">
+                <view class="scan">
+                    <text class="iconfont icon-saoyisao" @click="scan()"></text>
+                </view>
+                <search-box class="search" :lable="search_lable" :value="serch" />
+                <view class="view-box">
+                    Hello World !
+                </view>
+            </view>
+        </view>
+    </template>
+HTML;
+
+
+echo '<pre>';
+$dom = $parser->parse($html);
+
+print_r($dom);
diff --git a/src/DomParser/Config.php b/src/DomParser/Config.php
@@ -4,25 +4,37 @@
 
 class Config
 {
+    static private $instance;
 
+    private function __clone(){}
     # parser configs
     private $_config = [
+        # parse
         'start_tag_reg'     => '/^\s*<([^>\s\/!]+)/is',
         'start_end_tag_reg' => '/(^\s*>)|(^\s*\/>)/is',
         'end_tag_reg'       => '/^\s*<([^>\s\/]+)/is',
         'content_reg'       => '/^\s*([^<]+)|(<!--.*-->)/is',
         'attrs_reg'         => '/^\s*([^=>< ]+)="([^"]*)"|\s([^=><\s]+)(?=\s|>)/iU',
+        # inverse parse
+        'tag_indent'        => '    ',
+        'hide_genid'        => false,
     ];
 
-    /**
-     * Config constructor.
-     * @param array $confs
-     */
-    public function __construct($confs = [])
+    private function __construct($confs = [])
     {
         if (!empty($confs))
             $this->setConfig($confs);
     }
+    static public function getInstance($confs = [])
+    {
+        if (!self::$instance instanceof self) {
+            self::$instance = new self($confs);
+        }
+        if (!empty($confs))
+            self::$instance->setConfig($confs);
+
+        return self::$instance;
+    }
 
     /**
      * dynamic settings

diff --git a/src/DomParser/DomParser.php b/src/DomParser/DomParser.php
@@ -1,5 +1,4 @@
 <?php
-
 /**
  * DomParser Index File
  */
@@ -12,9 +11,9 @@ class DomParser
     private $orgDomString = '';
 
     # config object
-    public $config;
+    private $config;
     # parser object
-    public $parser;
+    private $parser;
 
 
     /**
@@ -24,7 +23,7 @@ class DomParser
      */
     public function __construct($domString = '', $config = [])
     {
-        $this->config = new Config($config);
+        $this->config = Config::getInstance($config);
         $this->parser = new Parser();
 
         if ($domString)
@@ -50,7 +49,16 @@ public function parse($domString = '')
         if ($domString)
             $this->orgDomString = $domString;
 
-        return $this->parser->config($this->config)->parse($this->orgDomString);
+        return $this->parser->parse($this->orgDomString);
     }
 
+    /**
+     * inverse method
+     * @param $domTree
+     * @return string
+     */
+    public function invParse(Node $domTree)
+    {
+        return (string) $domTree;
+    }
 }
diff --git a/src/DomParser/Node.php b/src/DomParser/Node.php
@@ -137,5 +137,78 @@ public static function generContentNode($content = '')
         return (new self('content'))->setNodeId()->setContent($content);
     }
 
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        # config
+        $config = Config::getInstance();
+        $tagIndent = $config->get('tag_indent');
+        $hideGenid = $config->get('hide_genid');
+        $tagIndentString    = str_repeat($tagIndent, $this->level);
+
+        # content
+        if (in_array($this->nodeName, ['content'])) {
+            return $tagIndentString . $this->content . PHP_EOL;
+        }
+        # root
+        if (in_array($this->nodeName, ['root'])) {
+            return $this->_invParseChilds($this->childs);
+        }
+        if (empty($this->nodeName))
+            return '';
+
+        # normal
+        $string = $tagIndentString . '<' . $this->nodeName . ' ';
+        # id
+        if (!empty($this->domId))
+            $string .= ' id="' . $this->domId . '" ';
+        # gener id
+        if ($hideGenid == false)
+            $string .= ' data-genid="' . $this->nodeId . '" ';
+        # class
+        if (!empty($this->domAttrs['class'])) {
+            $string .= ' class="' . implode(' ', $this->domAttrs['class']) . '" ';
+            unset($this->domAttrs['class']);
+        }
+        # style
+        if (!empty($this->domAttrs['style'])) {
+//            $string .= implode(' ', $this->domAttrs['class']);
+            unset($this->domAttrs['style']);
+        }
+        # attrs
+        if (!empty($this->domAttrs)) {
+            foreach ($this->domAttrs as $k => $v) {
+                $string .= ' ' . $k . '="' . $v . '" ';
+            }
+        }
+        # is single
+        if ($this->isSingle == true)
+            return $string . ' />' . PHP_EOL;
+
+        # start tag end
+        $string .= ' >' . PHP_EOL ;
+
+        if (!empty($this->childs))
+            $string .= $this->_invParseChilds($this->childs);
+
+        # end
+        $string .= $tagIndentString . '</' . $this->nodeName . '>' . PHP_EOL;
+
+        return $string;
+    }
+
+    private function _invParseChilds($childs)
+    {
+        if (empty($childs))
+            return '';
+
+        $string = '';
+        foreach ($childs as $child) {
+            $string .= (string) $child;
+        }
+        return $string;
+    }
 
 }
diff --git a/src/DomParser/Parser.php b/src/DomParser/Parser.php
@@ -8,11 +8,10 @@ class Parser
     # config obj
     private $_config;
 
-    # set config obj
-    public function config($config = null)
+    #
+    private function _getConfig()
     {
-        $this->_config = $config;
-
+        $this->_config = Config::getInstance();
         #
         $this->_startTagReg = $this->_config->get('start_tag_reg');
         $this->_endTagReg   = $this->_config->get('end_tag_reg');
@@ -30,6 +29,9 @@ public function config($config = null)
      */
     public function parse($domString = '')
     {
+        # init parse config
+        $this->_getConfig();
+
         $root = Node::generRootNode();
 
         $domString = trim($domString);
@@ -53,13 +55,11 @@ private function _parseChildNodes($domString = '', $parent = null)
             $stringLen = strlen($domString);
             # match start tad
             list($domString, $node) = $this->_parseStartTag($domString, $parent);
-//            $domString = $this->_parseStartTag($domString, $parent);
 
             # match content
             $domString = $this->_parseContent($domString, $parent);
 
             # match end tag
-//            $domString = $this->_parseEndTag($domString, $parent);
             $domString = $this->_parseEndTag($domString, $node);
 
             if ($stringLen == strlen($domString))

diff --git a/tests/DomParserTest.php b/tests/DomParserTest.php
@@ -8,10 +8,12 @@
 
 $html = <<< 'HTML'
     <template>
-        <!-- doc commnet -->
-        <view class="container">
+        <!-- doc hello 
+         world 
+         -->
+        <view  class="container"  id="main-view" data-genid="12323">
             <navigator url="/pages/show?id=1">
-                <image src="../../static/images/home-by.jpg" mode="widthFix"></image>
+                <image src="../../static/images/home-by.jpg" class="hello world" mode="widthFix"></image>
             </navigator>
             <view class="layout">
                 <view class="scan">
@@ -26,7 +28,8 @@
     </template>
 HTML;
 
-echo '<pre>';
-$dom = $parser->setConfig([])->parse($html);
+//echo '<pre>';
+$dom = $parser->setConfig([
+])->parse($html);
 
 print_r($dom);