fixed a bug that thrown exception with certain numbers

Persian_Numbers/build.gradle

@@ -12,8 +12,8 @@ android {
     defaultConfig {
         minSdkVersion 16
         targetSdkVersion 33
-        versionCode 4
-        versionName "2.0.0"
+        versionCode 5
+        versionName "2.0.1"
         consumerProguardFiles "consumer-rules.pro"
     }
 

Persian_Numbers/src/main/java/com/github/yamin8000/ppn/PersianDigits.kt

@@ -100,16 +100,17 @@ object PersianDigits {
     }
 
     private fun processTwoDigitsNumber(number: String): String {
+        if (number.length != 2) spellUnknownNumber(number)
         val oneNotation = "${number[1]}".toLong()
         val tenNotation = ("${number[0]}".toLong()) * 10
         return "${twoDigits[tenNotation]} $AND ${singleDigits[oneNotation]}"
     }
 
     private fun processThreeDigitsNumber(number: String): String {
-        val oneNotation = "${number[2]}".toLong()
-        val tenNotation = (("${number[1]}".toLong()) * 10) + oneNotation
+        if (number.length != 3) spellUnknownNumber(number)
+        val smallNotations = number.drop(1)
         val hundredNotation = ("${number[0]}".toLong()) * 100
-        return "${threeDigits[hundredNotation]} $AND ${spellTwoDigitsNumber("$tenNotation")}"
+        return "${threeDigits[hundredNotation]} $AND ${spellUnknownNumber(smallNotations)}"
     }
 
     private fun spellFourDigitsAndMoreNumber(number: String): String {

Persian_Numbers/src/test/java/com/github/yamin8000/ppn/MehdiTests.kt

@@ -0,0 +1,23 @@
+package com.github.yamin8000.ppn
+
+import com.github.yamin8000.ppn.PersianHelpers.spellToPersian
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+
+class MehdiTests {
+
+    @Test
+    fun firstMehdiTests() {
+        assertEquals("یکصد و یک", 101.spellToPersian())
+    }
+
+    @Test
+    fun otherMehdiTests() {
+        assertEquals("دویست و دو", 202.spellToPersian())
+        assertEquals("یک هزار و یکصد و یک", 1101.spellToPersian())
+        assertEquals("نود و نه هزار و نهصد و نه", 99_909.spellToPersian())
+        assertEquals("پانصد و پنجاه و پنج هزار و پانصد و پنج", 555_505.spellToPersian())
+        assertEquals("یک هزار و پنج", 1005.spellToPersian())
+        assertEquals("یک هزار و پانصد و پنج", 1505.spellToPersian())
+    }
+}

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.0.1'
+        classpath 'com.android.tools.build:gradle:8.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }