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Add method to test whether a string is a valid pinyin with tone number syllable #1

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marvinelsen merged 2 commits from add-is-valid-method into main 2024-09-20 10:58:27 +00:00
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1 changed files with 4 additions and 1 deletions
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src/main/kotlin/com/marvinelsen/chinese/transliteration/Syllable.kt
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@ -2,6 +2,7 @@ package com.marvinelsen.chinese.transliteration
import java.io.InputStream
@Suppress("MagicNumber", "MaximumLineLength", "MaxLineLength")
data class Syllable(
val pinyinSyllableWithoutTone: String,
val tone: Tone,
@ -13,6 +14,9 @@ data class Syllable(
private val zhuyinToPinyin = pinyinToZhuyin.entries.associate { it.value to it.key }
private val zhuyinToneMarkRegex = """[ˊˇˋ˙]""".toRegex()
fun isValidPinyinWithToneNumberSyllable(pinyinSyllable: String) =
pinyinSyllable.last().isDigit() && pinyinSyllable.last().digitToInt() in 1..5 && pinyinSyllable.lowercase() in pinyinToZhuyin
fun fromPinyinWithToneNumber(pinyinWithToneNumber: String): Syllable {
val pinyinWithoutNumber = pinyinWithToneNumber.substring(0, pinyinWithToneNumber.lastIndex)
val lastCharacter = pinyinWithToneNumber.last()
@ -20,7 +24,6 @@ data class Syllable(
require(lastCharacter.isDigit()) {
"'$pinyinWithToneNumber' is not a valid Pinyin with tone number syllable. Expected the last character to be a digit, but was '${pinyinWithToneNumber.last()}'"
}
@Suppress("MagicNumber")
require(lastCharacter.digitToInt() in 1..5) {
"'$pinyinWithToneNumber' is not a valid Pinyin with tone number syllable. Expected the tone number 'n' to be in range 1 <= n <= 5, but was '${pinyinWithToneNumber.last()}'"
}