Add String.parserMiraiCode, close #264

build.gradle.kts

@@ -68,8 +68,9 @@ subprojects {
     afterEvaluate {
         apply(plugin = "com.github.johnrengelman.shadow")
         val kotlin =
-            (this as ExtensionAware).extensions.getByName("kotlin") as? org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
-                ?: return@afterEvaluate
+            runCatching {
+                (this as ExtensionAware).extensions.getByName("kotlin") as? org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+            }.getOrNull() ?: return@afterEvaluate
 
         val shadowJvmJar by tasks.creating(com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar::class) {
             group = "mirai"

mirai-serialization/build.gradle.kts

@@ -0,0 +1,95 @@
+@file:Suppress("UNUSED_VARIABLE")
+
+plugins {
+    kotlin("multiplatform")
+    id("kotlinx-atomicfu")
+    kotlin("plugin.serialization")
+    id("signing")
+    `maven-publish`
+    id("com.jfrog.bintray") version Versions.Publishing.bintray
+}
+
+description = "Mirai serialization module"
+
+val isAndroidSDKAvailable: Boolean by project
+
+kotlin {
+    if (isAndroidSDKAvailable) {
+        apply(from = rootProject.file("gradle/android.gradle"))
+        android("android") {
+            publishAllLibraryVariants()
+        }
+    } else {
+        println(
+            """Android SDK 可能未安装.
+                $name 的 Android 目标编译将不会进行. 
+                这不会影响 Android 以外的平台的编译.
+            """.trimIndent()
+        )
+        println(
+            """Android SDK might not be installed.
+                Android target of $name will not be compiled. 
+                It does no influence on the compilation of other platforms.
+            """.trimIndent()
+        )
+    }
+
+    jvm()
+
+    sourceSets {
+        all {
+            languageSettings.enableLanguageFeature("InlineClasses")
+            languageSettings.useExperimentalAnnotation("kotlin.Experimental")
+            languageSettings.useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiInternalAPI")
+            languageSettings.useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiExperimentalAPI")
+            languageSettings.useExperimentalAnnotation("net.mamoe.mirai.LowLevelAPI")
+            languageSettings.useExperimentalAnnotation("kotlin.ExperimentalUnsignedTypes")
+            languageSettings.useExperimentalAnnotation("kotlin.experimental.ExperimentalTypeInference")
+            languageSettings.useExperimentalAnnotation("kotlin.time.ExperimentalTime")
+            languageSettings.useExperimentalAnnotation("kotlin.contracts.ExperimentalContracts")
+            languageSettings.progressiveMode = true
+        }
+
+        val commonMain by getting {
+            dependencies {
+                api(kotlin("stdlib"))
+                api(project(":mirai-core"))
+            }
+        }
+        val commonTest by getting {
+            dependencies {
+                api(kotlin("test-annotations-common"))
+                api(kotlin("test-common"))
+            }
+        }
+
+        if (isAndroidSDKAvailable) {
+            val androidMain by getting {
+                dependencies {
+                }
+            }
+
+            val androidTest by getting {
+                dependencies {
+                }
+            }
+        }
+
+        val jvmMain by getting {
+            dependencies {
+                runtimeOnly(files("build/classes/kotlin/jvm/main")) // classpath is not properly set by IDE
+            }
+        }
+
+        val jvmTest by getting {
+            dependencies {
+                implementation(kotlin("test"))
+                implementation(kotlin("test-junit"))
+
+                runtimeOnly(files("build/classes/kotlin/jvm/test")) // classpath is not properly set by IDE
+            }
+        }
+    }
+}
+
+apply(from = rootProject.file("gradle/publish.gradle"))

mirai-serialization/src/commonMain/kotlin/net/mamoe/mirai/message/code/MiraiCode.kt

@@ -0,0 +1,123 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+@file:JvmMultifileClass
+@file:JvmName("MiraiCode")
+@file:Suppress("INVISIBLE_MEMBER")
+
+package net.mamoe.mirai.message.code
+
+import net.mamoe.mirai.message.data.*
+import net.mamoe.mirai.utils.SinceMirai
+import kotlin.jvm.JvmMultifileClass
+import kotlin.jvm.JvmName
+
+@Suppress("RegExpRedundantEscape") // required on android
+internal val codeRegex = Regex("""(?:\[mirai:([^\]]*)?:(.*?)?\])|(?:\[mirai:(.*?)\])""")
+
+/**
+ * 解析形如 "[mirai:]" 的 mirai 码, 即 [Message.toString] 返回的内容.
+ */
+@SinceMirai("1.1.0")
+fun String.parseMiraiCode(): MessageChain = buildMessageChain {
+    forEachMiraiCode { origin, name, args ->
+        if (name == null) {
+            add(origin.toMessage())
+            return@forEachMiraiCode
+        }
+        val parser = MiraiCodeParsers[name] ?: kotlin.run {
+            add(origin.toMessage())
+            return@forEachMiraiCode
+        }
+        parser.argsRegex.matchEntire(args)
+            ?.destructured
+            ?.let {
+                parser.runCatching {
+                    mapper(it)
+                }.getOrNull()
+            }
+            ?.let(::add)
+            ?: add(origin.toMessage())
+    }
+}
+
+private inline fun String.forEachMiraiCode(crossinline block: (origin: String, name: String?, args: String) -> Unit) {
+    var lastIndex = 0
+    for (result in codeRegex.findAll(this)) {
+        if (result.range.first != lastIndex) {
+            // skipped string
+            block(result.value, null, substring(lastIndex, result.range.first))
+        }
+
+        lastIndex = result.range.last + 1
+        if (result.groups[3] != null) {
+            // no param
+            block(result.value, result.groups[3]!!.value, "")
+        } else block(result.value, result.groups[1]!!.value, result.groups[2]?.value ?: "")
+    }
+}
+
+internal object MiraiCodeParsers : Map<String, MiraiCodeParser> by mapOf(
+    "at" to MiraiCodeParser(Regex("""(\d*),(.*)""")) { (target, display) ->
+        At._lowLevelConstructAtInstance(target.toLong(), display)
+    },
+    "atall" to MiraiCodeParser(Regex("")) {
+        AtAll
+    },
+    "poke" to MiraiCodeParser(Regex("(.*)?,(\\d*),(-?\\d*)")) { (name, type, id) ->
+        PokeMessage(name, type.toInt(), id.toInt())
+    },
+    "vipface" to MiraiCodeParser(Regex("""\((\d*),(.*)\),(\d*)""")) { (id, name, count) ->
+        VipFace(VipFace.Kind(id.toInt(), name), count.toInt())
+    },
+    "face" to MiraiCodeParser(Regex("""(\d*)""")) { (id) ->
+        Face(id.toInt())
+    },
+    "image" to MiraiCodeParser(Regex("""(.*)""")) { (id) ->
+        Image(id)
+    },
+    "flash" to MiraiCodeParser(Regex("""(.*)""")) { (id) ->
+        Image(id).flash()
+    }
+)
+
+/*
+internal object MiraiCodeParsers2 : Map<String, (args: String) -> Message?> by mapOf(
+    "at" to l@{ args ->
+        val group = args.split(',')
+        if (group.size != 2) return@l null
+        val target = group[0].toLongOrNull() ?: return@l null
+        @Suppress("INVISIBLE_MEMBER")
+        At(target, group[1])
+    },
+    "atall" to l@{
+        AtAll
+    },
+    "poke" to l@{ args ->
+        val group = args.split(',')
+        if (group.size != 2) return@l null
+        val type = group[1].toIntOrNull() ?: return@l null
+        val id = group[2].toIntOrNull() ?: return@l null
+        @Suppress("INVISIBLE_MEMBER")
+        PokeMessage(group[0], type, id)
+    },
+    "vipface" to l@{ args ->
+        val group = args.split(',')
+        if (group.size != 2) return@l null
+        val type = group[1].toIntOrNull() ?: return@l null
+        val id = group[2].toIntOrNull() ?: return@l null
+        @Suppress("INVISIBLE_MEMBER")
+        PokeMessage(group[0], type, id)
+    }
+)*/
+
+internal class MiraiCodeParser(
+    val argsRegex: Regex,
+    val mapper: MiraiCodeParser.(MatchResult.Destructured) -> Message?
+)

mirai-serialization/src/commonTest/kotlin/net/mamoe/mirai/message/code/MiraiCodeParserTest.kt

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+
+package net.mamoe.mirai.message.code
+
+import net.mamoe.mirai.message.data.*
+import net.mamoe.mirai.message.data.VipFace.Companion.AiXin
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+internal class MiraiCodeParserTest {
+
+    @Test
+    fun testSplit() {
+        val str = "sadvass][ [mirai:at:1,test]]vdsavs [mirai:atall]"
+        assertEquals(str, str.parseMiraiCode().toString())
+    }
+
+    @Test
+    fun at() {
+        val str = "[mirai:at:1,test]"
+        assertEquals(At._lowLevelConstructAtInstance(1, "test"), str.parseMiraiCode()[0])
+
+        fun testPlain(str: String) {
+            assertEquals(str, (str.parseMiraiCode()[0] as PlainText).content)
+        }
+        testPlain("[mirai:at:bad,test]")
+        testPlain("[mirai:at:bad]")
+        testPlain("[mirai:at:]")
+        testPlain("[mirai:at]")
+    }
+
+    @Test
+    fun atAll() {
+        val str = "[mirai:atall]"
+        assertEquals(AtAll, str.parseMiraiCode()[0])
+    }
+
+    @Test
+    fun poke() {
+        assertEquals(PokeMessage.Poke, PokeMessage.Poke.toString().parseMiraiCode()[0])
+    }
+
+    @Test
+    fun vipFace() {
+        val instance = VipFace(AiXin, 1)
+        assertEquals(instance, instance.toString().parseMiraiCode()[0])
+    }
+
+    @Test
+    fun image() {
+        val instance = Image("{01E9451B-70ED-EAE3-B37C-101F1EEBF5B5}.mirai")
+        assertEquals(instance, instance.toString().parseMiraiCode()[0])
+    }
+
+    @Test
+    fun flash() {
+        val instance = Image("{01E9451B-70ED-EAE3-B37C-101F1EEBF5B5}.mirai").flash()
+        assertEquals(instance, instance.toString().parseMiraiCode()[0])
+    }
+}

settings.gradle

@@ -23,6 +23,7 @@ rootProject.name = 'mirai'
 
 include(':mirai-core')
 include(':mirai-core-qqandroid')
+include(':mirai-serialization')
 //include(':compatibility-validator') // THIS WILL CAUSE A DEPENDENCY RESOLUTION BUG
 //include(':java-compatibility-validator')