Update AnalyzeByJSonPath.kt

注释优化,复制错代码修正
pull/1095/head
bushixuanqi 3 years ago committed by GitHub
parent db6db67f1e
commit 6caa0c39a7
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  1. 225
      app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeByJSonPath.kt

@ -1,33 +1,192 @@
0. 新增专门用于切分各种规则的类分解完所有规则后才切片其余操作都只改变变量指向规则字符串中的位置暂时只用于处理三大规则的&&||%%@切分以后将扩展到全部解析规则
改进jsonPath,jsoup,xpath中的规则切分方法允许查询规则的正则或字符串中存在&&||%%@而不切错
/**
* 改进解析方法
* 解决阅读&&||与jsonPath支持的&&||之间的冲突
* 解决{$.rule}形式规则可能匹配错误的问题旧规则用正则解析内容含}的json文本时用规则中的字段去匹配这种内容时会匹配错误.现改用平衡嵌套方法解决这个问题
* */
1. 加强AnalyzeByJSoup中的索引写法
/**
* 1.支持阅读原有写法':'分隔索引!.表示筛选方式索引可为负数
*
* 例如 tag.div.-1:10:2 tag.div!0:3
*
* 2. 支持与jsonPath类似的[]索引写法
*
* 格式形如 [it,it] [!it,it] 其中[!开头表示筛选方式为排除it为单个索引或区间
*
* 区间格式为 start:end start:end:step其中start为0可省略end为-1可省略
*
* 索引区间两端及间隔都支持负数
*
* 例如 tag.div[-1, 3:-2:-10, 2]
*
* 特殊用法 tag.div[-1:0] 可在任意地方让列表反向
*
* */
-------------------
已测试过各种&&||%%切分的规则及两者索引写法没发现大问题坤飞大大可以再测试看看
package io.legado.app.model.analyzeRule
import androidx.annotation.Keep
import com.jayway.jsonpath.JsonPath
import com.jayway.jsonpath.ReadContext
import java.util.*
@Suppress("RegExpRedundantEscape")
@Keep
class AnalyzeByJSonPath(json: Any) {
companion object {
fun parse(json: Any): ReadContext {
return when (json) {
is ReadContext -> json
is String -> JsonPath.parse(json) //JsonPath.parse<String>(json)
else -> JsonPath.parse(json) //JsonPath.parse<Any>(json)
}
}
}
private var ctx: ReadContext = parse(json)
/**
* 改进解析方法
* 解决阅读&&||与jsonPath支持的&&||之间的冲突
* 解决{$.rule}形式规则可能匹配错误的问题旧规则用正则解析内容含}的json文本时用规则中的字段去匹配这种内容时会匹配错误.现改用平衡嵌套方法解决这个问题
* */
fun getString(rule: String): String? {
if (rule.isEmpty()) return null
var result: String
val ruleAnalyzes = RuleAnalyzer(rule)
val rules = ruleAnalyzes.splitRule("&&","||")
if (rules.size == 1) {
ruleAnalyzes.reSetPos() //将pos重置为0,复用解析器
result = ruleAnalyzes.innerRule("{$."){ getString(it) } //替换所有{$.rule...}
if (result.isEmpty()) { //st为空,表明无成功替换的内嵌规则
try {
val ob = ctx.read<Any>(rule)
result =(if (ob is List<*>) {
val builder = StringBuilder()
for (o in ob) {
builder.append(o).append("\n")
}
builder.deleteCharAt(builder.lastIndex) //删除末尾赘余换行
builder
} else ob).toString()
} catch (ignored: Exception) {
}
}
return result
} else {
val textList = arrayListOf<String>()
for (rl in rules) {
val temp = getString(rl)
if (!temp.isNullOrEmpty()) {
textList.add(temp)
if (ruleAnalyzes.elementsType == "||") {
break
}
}
}
return textList.joinToString("\n")
}
}
internal fun getStringList(rule: String): List<String> {
val result = ArrayList<String>()
if (rule.isEmpty()) return result
val ruleAnalyzes = RuleAnalyzer(rule)
val rules = ruleAnalyzes.splitRule("&&","||","%%")
if (rules.size == 1) {
ruleAnalyzes.reSetPos() //将pos重置为0,复用解析器
val st = ruleAnalyzes.innerRule("{$."){ getString(it) } //替换所有{$.rule...}
if (st.isEmpty()) { //st为空,表明无成功替换的内嵌规则
try {
val obj = ctx.read<Any>(rule) //kotlin的Any型返回值不包含null ,删除赘余 ?: return result
if (obj is List<*>) {
for (o in obj) result.add(o.toString())
} else result.add(obj.toString())
} catch (ignored: Exception) {
}
}else result.add(st)
return result
} else {
val results = ArrayList<List<String>>()
for (rl in rules) {
val temp = getStringList(rl)
if (temp.isNotEmpty()) {
results.add(temp)
if (temp.isNotEmpty() && ruleAnalyzes.elementsType == "||") {
break
}
}
}
if (results.size > 0) {
if ("%%" == ruleAnalyzes.elementsType) {
for (i in results[0].indices) {
for (temp in results) {
if (i < temp.size) {
result.add(temp[i])
}
}
}
} else {
for (temp in results) {
result.addAll(temp)
}
}
}
return result
}
}
internal fun getObject(rule: String): Any {
return ctx.read(rule)
}
internal fun getList(rule: String): ArrayList<Any>? {
val result = ArrayList<Any>()
if (rule.isEmpty()) return result
val ruleAnalyzes = RuleAnalyzer(rule)
val rules = ruleAnalyzes.splitRule("&&","||","%%")
if (rules.size == 1) {
ctx.let {
try {
return it.read<ArrayList<Any>>(rules[0])
} catch (e: Exception) {
e.printStackTrace()
}
}
return null
} else {
val results = ArrayList<ArrayList<*>>()
for (rl in rules) {
val temp = getList(rl)
if (temp != null && temp.isNotEmpty()) {
results.add(temp)
if (temp.isNotEmpty() && ruleAnalyzes.elementsType == "||") {
break
}
}
}
if (results.size > 0) {
if ("%%" == ruleAnalyzes.elementsType) {
for (i in 0 until results[0].size) {
for (temp in results) {
if (i < temp.size) {
temp[i]?.let { result.add(it) }
}
}
}
} else {
for (temp in results) {
result.addAll(temp)
}
}
}
}
return result
}
}

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