Use Chinese transliteration library

build.gradle.kts

@@ -9,11 +9,16 @@ version = "1.0-SNAPSHOT"
 
 repositories {
     mavenCentral()
+    maven {
+        url = uri("https://gitea.marvinelsen.com/api/packages/marvinelsen/maven")
+    }
 }
 
 dependencies {
     detektPlugins(libs.detekt.formatting)
 
+    implementation("com.marvinelsen:chinese-transliteration:1.1-SNAPSHOT") { isChanging = true }
+
     testImplementation(libs.kotest.core)
     testImplementation(libs.kotest.assertions)
 }

src/main/kotlin/com/marvinelsen/cedict/api/CedictEntry.kt

@@ -1,8 +1,10 @@
 package com.marvinelsen.cedict.api
 
+import com.marvinelsen.chinese.transliteration.Syllable
+
 data class CedictEntry(
     val traditional: String,
     val simplified: String,
-    val pinyinSyllables: List<PinyinSyllable>,
+    val pinyinSyllables: List<Syllable>,
     val definitions: List<CedictDefinition>,
 )

src/main/kotlin/com/marvinelsen/cedict/api/PinyinSyllable.kt

@@ -1,27 +0,0 @@
-package com.marvinelsen.cedict.api
-
-data class PinyinSyllable(
-    val syllable: String,
-    val tone: Tone,
-) {
-    companion object {
-        fun fromString(pinyinWithNumbers: String): PinyinSyllable {
-            require(pinyinWithNumbers.isNotBlank()) { "Argument pinyinWithNumbers must not be blank." }
-
-            val lastCharacter = pinyinWithNumbers.last()
-            return if (lastCharacter.isDigit()) {
-                PinyinSyllable(
-                    syllable = pinyinWithNumbers.substring(0, pinyinWithNumbers.lastIndex),
-                    tone = Tone.fromDigit(lastCharacter)
-                )
-            } else {
-                PinyinSyllable(
-                    syllable = pinyinWithNumbers,
-                    tone = Tone.NONE
-                )
-            }
-        }
-    }
-
-    override fun toString() = syllable + tone.toString()
-}

src/main/kotlin/com/marvinelsen/cedict/api/Tone.kt

@@ -1,25 +0,0 @@
-package com.marvinelsen.cedict.api
-
-enum class Tone {
-    NONE, FIRST, SECOND, THIRD, FORTH, FIFTH;
-
-    companion object {
-        fun fromDigit(digit: Char) = when (digit) {
-            '1' -> FIRST
-            '2' -> SECOND
-            '3' -> THIRD
-            '4' -> FORTH
-            '5' -> FIFTH
-            else -> error("Digit $digit is not a valid tone")
-        }
-    }
-
-    override fun toString() = when (this) {
-        NONE -> ""
-        FIRST -> "1"
-        SECOND -> "2"
-        THIRD -> "3"
-        FORTH -> "4"
-        FIFTH -> "5"
-    }
-}

src/main/kotlin/com/marvinelsen/cedict/internal/CedictParserImpl.kt

@@ -3,7 +3,7 @@ package com.marvinelsen.cedict.internal
 import com.marvinelsen.cedict.api.CedictDefinition
 import com.marvinelsen.cedict.api.CedictEntry
 import com.marvinelsen.cedict.api.CedictParser
-import com.marvinelsen.cedict.api.PinyinSyllable
+import com.marvinelsen.chinese.transliteration.Syllable
 import java.io.InputStream
 
 internal class CedictParserImpl : CedictParser {
@@ -42,10 +42,9 @@ internal class CedictParserImpl : CedictParser {
     }
 
     private fun toPinyinSyllables(pinyinWithNumbers: String) = pinyinWithNumbers
-        .lowercase()
-        .replace("u:", "ü")
         .split(" ")
-        .map { PinyinSyllable.fromString(it) }
+        .filter { Syllable.isValidPinyinWithToneNumberSyllable(it) }
+        .map { Syllable.fromPinyinWithToneNumber(it) }
 
     private fun toCedictDefinitions(definitions: String) = definitions
         .split(DEFINITION_SEPARATOR)

src/test/kotlin/com/marvinelsen/cedict/internal/CedictParserImplTest.kt

@@ -1,8 +1,8 @@
 package com.marvinelsen.cedict.internal
 
 import com.marvinelsen.cedict.api.CedictDefinition
-import com.marvinelsen.cedict.api.PinyinSyllable
+import com.marvinelsen.chinese.transliteration.Syllable
-import com.marvinelsen.cedict.api.Tone
+import com.marvinelsen.chinese.transliteration.Tone
 import io.kotest.core.spec.style.ShouldSpec
 import io.kotest.matchers.shouldBe
 import java.util.zip.GZIPInputStream
@@ -16,8 +16,8 @@ class CedictParserImplTest : ShouldSpec({
         cedictEntry.traditional shouldBe "皮實"
         cedictEntry.simplified shouldBe "皮实"
         cedictEntry.pinyinSyllables shouldBe listOf(
-            PinyinSyllable("pi", Tone.SECOND),
+            Syllable("pi", Tone.SECOND),
-            PinyinSyllable("shi", Tone.FIFTH)
+            Syllable("shi", Tone.FIFTH)
         )
         cedictEntry.definitions shouldBe listOf(
             CedictDefinition(listOf("(of things) durable")),