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@ -2,7 +2,7 @@ package io.legado.app.model.analyzeRule |
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//通用的规则切分处理 |
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//通用的规则切分处理 |
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class RuleAnalyzer(data: String) { |
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class RuleAnalyzer(data: String, code:Boolean = false) { |
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private var queue: String = data //被处理字符串 |
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private var queue: String = data //被处理字符串 |
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private var pos = 0 //处理到的位置 |
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private var pos = 0 //处理到的位置 |
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@ -12,6 +12,8 @@ class RuleAnalyzer(data: String) { |
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private var startX = 0 //规则的开始 |
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private var startX = 0 //规则的开始 |
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private var step:Int = 0 //分割字符的长度 |
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private var step:Int = 0 //分割字符的长度 |
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val chompBalanced = if(code) ::chompCodeBalanced else ::chompRuleBalanced //设置平衡组函数,json或JavaScript时设置成chompCodeBalanced,否则为chompRuleBalanced |
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var elementsType = "" |
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var elementsType = "" |
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//当前平衡字段 |
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//当前平衡字段 |
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@ -195,7 +197,7 @@ class RuleAnalyzer(data: String) { |
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/** |
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/** |
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* 拉出一个代码平衡组,存在转义文本,没有实体字符,通常以{}作为模块 |
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* 拉出一个代码平衡组,存在转义文本,没有实体字符,通常以{}作为模块 |
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*/ |
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*/ |
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fun chompCodeBalanced(open: Char = '{', close: Char = '}'): Boolean { |
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fun chompCodeBalanced(open: Char, close: Char): Boolean { |
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var pos = pos //声明临时变量记录匹配位置,匹配成功后才同步到类的pos |
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var pos = pos //声明临时变量记录匹配位置,匹配成功后才同步到类的pos |
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@ -234,9 +236,9 @@ class RuleAnalyzer(data: String) { |
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} |
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} |
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/** |
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/** |
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* 拉出一个规则平衡组,没有转义文本,有实体字符,通常以[]作为选择器 |
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* 拉出一个规则平衡组,经过仔细测试xpath和jsoup中,引号内转义字符无效。 |
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*/ |
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*/ |
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fun chompRuleBalanced(open: Char = '[', close: Char = ']'): Boolean { |
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fun chompRuleBalanced(open: Char, close: Char): Boolean { |
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var pos = pos //声明临时变量记录匹配位置,匹配成功后才同步到类的pos |
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var pos = pos //声明临时变量记录匹配位置,匹配成功后才同步到类的pos |
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var depth = 0 //嵌套深度 |
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var depth = 0 //嵌套深度 |
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@ -246,11 +248,14 @@ class RuleAnalyzer(data: String) { |
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do { |
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do { |
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if (pos == queue.length) break |
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if (pos == queue.length) break |
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val c = queue[pos++] |
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val c = queue[pos++] |
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if (c == '\'' && !inDoubleQuote) inSingleQuote = !inSingleQuote //匹配具有语法功能的单引号 |
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if (c == '\'' && !inDoubleQuote) inSingleQuote = !inSingleQuote //匹配具有语法功能的单引号 |
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else if (c == '"' && !inSingleQuote) inDoubleQuote = !inDoubleQuote //匹配具有语法功能的双引号 |
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else if (c == '"' && !inSingleQuote) inDoubleQuote = !inDoubleQuote //匹配具有语法功能的双引号 |
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if (inSingleQuote || inDoubleQuote) continue //语法单元未匹配结束,直接进入下个循环 |
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if (inSingleQuote || inDoubleQuote) continue //语法单元未匹配结束,直接进入下个循环 |
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else if( c=='\\' ){ //不在引号中的转义字符才将下个字符转义 |
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pos++ |
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continue |
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} |
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if ( c == open )depth++ //开始嵌套一层 |
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if ( c == open )depth++ //开始嵌套一层 |
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else if ( c== close) depth-- //闭合一层嵌套 |
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else if ( c== close) depth-- //闭合一层嵌套 |
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@ -331,7 +336,7 @@ class RuleAnalyzer(data: String) { |
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pos = st //位置推移到筛选器处 |
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pos = st //位置推移到筛选器处 |
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val next = if (queue[pos] == '[') ']' else ')' //平衡组末尾字符 |
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val next = if (queue[pos] == '[') ']' else ')' //平衡组末尾字符 |
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if (!chompRuleBalanced(queue[pos], next)) throw Error( |
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if (!chompBalanced(queue[pos], next)) throw Error( |
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queue.substring( |
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queue.substring( |
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0, |
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0, |
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start |
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start |
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@ -392,7 +397,7 @@ class RuleAnalyzer(data: String) { |
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pos = st //位置推移到筛选器处 |
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pos = st //位置推移到筛选器处 |
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val next = if (queue[pos] == '[') ']' else ')' //平衡组末尾字符 |
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val next = if (queue[pos] == '[') ']' else ')' //平衡组末尾字符 |
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if (!chompRuleBalanced(queue[pos], next)) throw Error( |
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if (!chompBalanced(queue[pos], next)) throw Error( |
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queue.substring( |
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queue.substring( |
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0, |
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0, |
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start |
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start |
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@ -427,7 +432,7 @@ class RuleAnalyzer(data: String) { |
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while (!isEmpty && consumeTo(inner)) { //拉取成功返回true,ruleAnalyzes里的字符序列索引变量pos后移相应位置,否则返回false,且isEmpty为true |
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while (!isEmpty && consumeTo(inner)) { //拉取成功返回true,ruleAnalyzes里的字符序列索引变量pos后移相应位置,否则返回false,且isEmpty为true |
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val posPre = pos //记录上次结束位置 |
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val posPre = pos //记录上次结束位置 |
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if (chompCodeBalanced()) { |
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if (chompBalanced('{', '}')) { |
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val frv= fr(currBalancedString(startStep,endStep)) |
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val frv= fr(currBalancedString(startStep,endStep)) |
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if(frv != null) { |
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if(frv != null) { |
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st.append(queue.substring(start,posPre)+frv) //压入内嵌规则前的内容,及内嵌规则解析得到的字符串 |
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st.append(queue.substring(start,posPre)+frv) //压入内嵌规则前的内容,及内嵌规则解析得到的字符串 |
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@ -559,5 +564,4 @@ class RuleAnalyzer(data: String) { |
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*/ |
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*/ |
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val splitListDefault = arrayOf("-",".","!","@","@@") |
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val splitListDefault = arrayOf("-",".","!","@","@@") |
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} |
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}} |
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} |
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