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正则匹配替换成com.google.re2j
自带的正则匹配超时无法取消
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commit
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@ -212,6 +212,9 @@ dependencies {
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//implementation('com.github.gedoor:rhino-android:1.8')
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implementation(fileTree(dir: 'lib', include: ['rhino-*.jar']))
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//正则匹配,android自带的正则匹配出现超时问题无法处理
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implementation('com.google.re2j:re2j:1.7')
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//网络
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implementation('com.squareup.okhttp3:okhttp:4.10.0')
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implementation(fileTree(dir: 'cronetlib', include: ['*.jar', '*.aar']))
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@ -100,10 +100,9 @@ data class BookChapter(
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if (item.pattern.isNotEmpty()) {
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try {
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val mDisplayTitle = if (item.isRegex) {
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displayTitle.replace(
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item.pattern.toRegex(),
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item.replacement,
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item.getValidTimeoutMillisecond()
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displayTitle.replaceRegex(
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item.pattern,
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item.replacement
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)
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} else {
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displayTitle.replace(item.pattern, item.replacement)
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@ -9,7 +9,7 @@ import io.legado.app.data.entities.ReplaceRule
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import io.legado.app.exception.RegexTimeoutException
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import io.legado.app.help.config.AppConfig
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import io.legado.app.help.config.ReadBookConfig
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import io.legado.app.utils.replace
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import io.legado.app.utils.replaceRegex
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import io.legado.app.utils.stackTraceStr
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import io.legado.app.utils.toastOnUi
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import kotlinx.coroutines.CancellationException
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@ -134,17 +134,16 @@ class ContentProcessor private constructor(
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return contents
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}
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suspend fun replaceContent(content: String): String {
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fun replaceContent(content: String): String {
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var mContent = content
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mContent = mContent.lines().joinToString("\n") { it.trim() }
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getContentReplaceRules().forEach { item ->
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if (item.pattern.isNotEmpty()) {
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try {
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mContent = if (item.isRegex) {
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mContent.replace(
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item.pattern.toRegex(),
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item.replacement,
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item.getValidTimeoutMillisecond()
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mContent.replaceRegex(
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item.pattern,
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item.replacement
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)
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} else {
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mContent.replace(item.pattern, item.replacement)
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@ -1,64 +1,33 @@
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package io.legado.app.utils
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import android.util.Log
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import androidx.core.os.postDelayed
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import com.google.re2j.Pattern
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import com.script.SimpleBindings
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import io.legado.app.constant.AppConst
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import io.legado.app.exception.RegexTimeoutException
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import io.legado.app.help.CrashHandler
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import io.legado.app.help.coroutine.Coroutine
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import kotlinx.coroutines.suspendCancellableCoroutine
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import splitties.init.appCtx
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import kotlin.coroutines.resume
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import kotlin.coroutines.resumeWithException
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private val handler by lazy { buildMainHandler() }
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/**
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* 带有超时检测的正则替换
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*/
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suspend fun CharSequence.replace(regex: Regex, replacement: String, timeout: Long): String {
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val charSequence = this@replace
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fun CharSequence.replaceRegex(regex: String, replacement: String): String {
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val charSequence = this
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val isJs = replacement.startsWith("@js:")
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val replacement1 = if (isJs) replacement.substring(4) else replacement
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return suspendCancellableCoroutine { block ->
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val coroutine = Coroutine.async {
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try {
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val pattern = regex.toPattern()
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val matcher = pattern.matcher(charSequence)
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val stringBuffer = StringBuffer()
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while (matcher.find()) {
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if (isJs) {
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val bindings = SimpleBindings()
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bindings["result"] = matcher.group()
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val jsResult =
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AppConst.SCRIPT_ENGINE.eval(replacement1, bindings).toString()
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matcher.appendReplacement(stringBuffer, jsResult)
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} else {
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matcher.appendReplacement(stringBuffer, replacement1)
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}
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}
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matcher.appendTail(stringBuffer)
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Log.e("regex", "end")
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block.resume(stringBuffer.toString())
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} catch (e: Exception) {
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block.resumeWithException(e)
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}
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}
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handler.postDelayed(timeout) {
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if (coroutine.isActive) {
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val timeoutMsg = "替换超时,3秒后还未结束将重启应用\n替换规则$regex\n替换内容:${this}"
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val exception = RegexTimeoutException(timeoutMsg)
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block.cancel(exception)
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appCtx.longToastOnUi(timeoutMsg)
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CrashHandler.saveCrashInfo2File(exception)
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handler.postDelayed(3000) {
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if (coroutine.isActive) {
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appCtx.restart()
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}
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}
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}
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val pattern = Pattern.compile(regex)
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val matcher = pattern.matcher(charSequence)
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val stringBuffer = StringBuffer()
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while (matcher.find()) {
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if (isJs) {
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val bindings = SimpleBindings()
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bindings["result"] = matcher.group()
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val jsResult =
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AppConst.SCRIPT_ENGINE.eval(replacement1, bindings).toString()
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matcher.appendReplacement(stringBuffer, jsResult)
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} else {
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matcher.appendReplacement(stringBuffer, replacement1)
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}
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}
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matcher.appendTail(stringBuffer)
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Log.e("regex", "end")
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return stringBuffer.toString()
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}
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