优化markdown解析

src/markd/core.js

@@ -152,7 +152,7 @@ const Decoder = {
       var stat = todoChecked === 1 ? 'checked' : ''
       var txt = todoChecked === 1 ? `<del>${word}</del>` : word
 
-      return `\n<section><wc-checkbox readonly ${stat}>${txt}</wc-checkbox></section>\n`
+      return `\n<section><wc-checkbox readonly ${stat}>${txt}</wc-checkbox></section>`
     }
     return false
   }
@@ -194,7 +194,7 @@ class Tool {
         emptyLineLength = 0
         if (tmp.startsWith('```')) {
           if (isCodeBlock) {
-            list.push('\n</xmp></wc-code>\n\n')
+            list.push('\n</xmp></wc-code>\n')
           } else {
             list.push(
               tmp.replace(/^```([\w\#\-]*?)$/, `\n<wc-code lang="$1"><xmp>`)
@@ -265,22 +265,22 @@ class Tool {
   }
 
   parse() {
-    var html = ''
+    let html = ''
-    var isCodeBlock = false // 是否代码块
+    let isCodeBlock = false // 是否代码块
-    var emptyLineLength = 0 //连续空行的数量
+    let emptyLineLength = 0 //连续空行的数量
-    var isBlockquote = false
+    let isBlockquote = false
-    var isTable = false
+    let isTable = false
-    var tableAlign = null
+    let tableAlign = null
-    var blockquoteLevel = 0
+    let blockquoteLevel = 0
-    var isParagraph = false
+    let isParagraph = false
 
-    var isList = false
+    let isList = false
-    var orderListLevel = -1
+    let orderListLevel = -1
-    var unorderListLevel = -1
+    let unorderListLevel = -1
 
-    var isQuoteList = false // 引用中的列表, 只支持一层级
+    let isQuoteList = false // 引用中的列表, 只支持一层级
-    var quoteListStyle = 0 // 1有序,  2 无序
+    let quoteListStyle = 0 // 1有序,  2 无序
-    var isHtmlBlock = false // 是否原生html代码块
+    let isHtmlBlock = false // 是否原生html代码块
 
     //
     for (let it of this.list) {
@@ -350,6 +350,11 @@ class Tool {
           continue
         }
 
+        // 处理常规样式之前, 先判断是否为原生html文本
+        // 避免处理完常规样式之后生成的html干扰结果
+        let isSingleLineHtml = SINGLE_LINE_HTML_RE.test(it)
+        let isMultiLineHtml = !isSingleLineHtml && MULTI_LINE_HTML_RE.test(it)
+
         // 优先处理一些常规样式
         it = Decoder.inline.call(this, it)
 
@@ -358,10 +363,24 @@ class Tool {
         let head = Decoder.head(it)
         if (head) {
           html = trimBr(html)
+          // 有段落先结束
           if (isParagraph) {
             isParagraph = false
             html += '</p>'
           }
+          // 有列表也先结束
+          if (isList) {
+            while (orderListLevel > -1 || unorderListLevel > -1) {
+              if (orderListLevel > unorderListLevel) {
+                html += '</ol>\n'
+                orderListLevel--
+              } else {
+                html += '</ul>\n'
+                unorderListLevel--
+              }
+            }
+            isList = false
+          }
 
           html += head
           continue
@@ -450,39 +469,40 @@ class Tool {
           let tmp = Helper.ltrim(it)
           let ltrim = it.length - tmp.length
           let word = tmp.replace(LIST_RE, '').trim()
-          let level = Math.floor(ltrim / 2)
+          let level = Math.floor(ltrim / 2) //缩进级别
-          let tag = listChecked > 0 ? 'ol' : 'ul'
+          let tag = listChecked === 1 ? 'ol' : 'ul'
 
           if (isList) {
+            let _level = listChecked === 1 ? orderListLevel : unorderListLevel
+
+            // 大于上一个缩进
+            if (level > _level) {
+              // 需要先把上一个列表的结束符去掉
+              html = html.trim().replace(/<\/li>$/, '')
+              html += `\n<${tag}>\n<li>${word}</li>\n`
+            }
+            // 跟上一个平级
+            else if (level === _level) {
+              html += `<li>${word}</li>\n`
+            }
+            // 比上一个缩进要小
+            else {
+              html += `</${tag}>\n</li>\n<li>${word}</li>\n`
+            }
+
             if (listChecked === 1) {
-              if (level > orderListLevel) {
-                html = html.replace(/<\/li>$/, '')
-                html += `<${tag}><li>${word}</li>`
-              } else if (level === orderListLevel) {
-                html += `<li>${word}</li>`
-              } else {
-                html += `</${tag}></li><li>${word}</li>`
-              }
               orderListLevel = level
             } else {
-              if (level > unorderListLevel) {
-                html = html.replace(/<\/li>$/, '')
-                html += `<${tag}><li>${word}</li>`
-              } else if (level === unorderListLevel) {
-                html += `<li>${word}</li>`
-              } else {
-                html += `</${tag}></li><li>${word}</li>`
-              }
               unorderListLevel = level
             }
           } else {
-            html += `<${tag}>`
+            html += `<${tag}>\n`
             if (listChecked === 1) {
               orderListLevel = level
             } else {
               unorderListLevel = level
             }
-            html += `<li>${word}</li>`
+            html += `<li>${word}</li>\n`
           }
 
           isList = true
@@ -503,13 +523,13 @@ class Tool {
         if (isParagraph) {
           html += `${it}\n`
         } else {
-          if (isHtmlBlock || SINGLE_LINE_HTML_RE.test(it)) {
+          if (isHtmlBlock || isSingleLineHtml) {
             html += `${it}\n`
-          } else if (MULTI_LINE_HTML_RE.test(it)) {
+          } else if (isMultiLineHtml) {
             isHtmlBlock = !isHtmlBlock
             html += `${it}\n`
           } else {
-            html += `\n<p>\n${it}`
+            html += `\n<p>${it}`
             isParagraph = true
           }
         }
@@ -556,7 +576,7 @@ class Tool {
               emptyLineLength = 0
               isParagraph = false
               html = trimBr(html)
-              html += '\n</p>\n'
+              html += '</p>\n'
             } else {
               html += '<br>'
             }