improve text highlighting, if it contains numbers

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         propMinSdkVersion = 21
         propTargetSdkVersion = propCompileSdkVersion
         propVersionCode = 1
-        propVersionName = '5.6.3'
+        propVersionName = '5.6.4'
         kotlin_version = '1.3.11'
     }
 

commons/src/main/kotlin/com/simplemobiletools/commons/extensions/Activity.kt

@@ -2,8 +2,6 @@ package com.simplemobiletools.commons.extensions
 
 import android.annotation.SuppressLint
 import android.app.Activity
-import android.app.AlertDialog
-import android.app.ProgressDialog.show
 import android.content.*
 import android.content.pm.ApplicationInfo
 import android.content.pm.PackageManager
@@ -14,6 +12,7 @@ import android.os.Looper
 import android.os.TransactionTooLargeException
 import android.provider.DocumentsContract
 import android.provider.MediaStore
+import android.text.Html
 import android.view.View
 import android.view.ViewGroup
 import android.view.Window
@@ -21,6 +20,9 @@ import android.view.WindowManager
 import android.view.inputmethod.InputMethodManager
 import android.widget.EditText
 import android.widget.TextView
+import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.app.AppCompatActivity
+import androidx.documentfile.provider.DocumentFile
 import com.simplemobiletools.commons.R
 import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.dialogs.*

commons/src/main/kotlin/com/simplemobiletools/commons/extensions/String.kt

@@ -10,11 +10,13 @@ import android.media.MediaMetadataRetriever
 import android.os.Build
 import android.text.Spannable
 import android.text.SpannableString
+import android.text.TextUtils
 import android.text.style.ForegroundColorSpan
 import com.simplemobiletools.commons.helpers.*
 import java.text.Normalizer
 import java.text.SimpleDateFormat
 import java.util.*
+import java.util.regex.Pattern
 
 fun String.getFilenameFromPath() = substring(lastIndexOf("/") + 1)
 
@@ -240,7 +242,7 @@ fun String.substringTo(cnt: Int): String {
     }
 }
 
-fun String.highlightTextPart(textToHighlight: String, color: Int, highlightAll: Boolean = false): SpannableString {
+fun String.highlightTextPart(textToHighlight: String, color: Int, highlightAll: Boolean = false, ignoreCharsBetweenDigits: Boolean = false): SpannableString {
     val spannableString = SpannableString(this)
     if (textToHighlight.isEmpty()) {
         return spannableString
@@ -259,6 +261,21 @@ fun String.highlightTextPart(textToHighlight: String, color: Int, highlightAll:
         }
     }
 
+    // handle cases when we search for 643, but in reality the string contains it like 6-43
+    if (ignoreCharsBetweenDigits && indexes.isEmpty()) {
+        val regex = TextUtils.join("(\\D*)", textToHighlight.toCharArray().toTypedArray())
+        val pattern = Pattern.compile(regex)
+        val result = pattern.matcher(normalizeString())
+        if (result.find()) {
+            try {
+                spannableString.setSpan(ForegroundColorSpan(color), result.start(), result.end(), Spannable.SPAN_EXCLUSIVE_INCLUSIVE)
+            } catch (ignored: Exception) {
+            }
+        }
+
+        return spannableString
+    }
+
     indexes.forEach {
         val endIndex = Math.min(it + textToHighlight.length, length)
         try {