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Convert newpipe/util/FilenameUtils.java to kotlin

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Co-authored-by: Aayush Gupta <aayushgupta219@gmail.com>
This commit is contained in:
Yevhen Babiichuk (DustDFG) 2025-12-26 01:57:15 +02:00
parent 37df95453c
commit cea21d0fb5
2 changed files with 64 additions and 70 deletions
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70
app/src/main/java/org/schabi/newpipe/util/FilenameUtils.java
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package org.schabi.newpipe.util;
import android.content.Context;
import android.content.SharedPreferences;
import androidx.preference.PreferenceManager;
import org.schabi.newpipe.R;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public final class FilenameUtils {
private static final String CHARSET_MOST_SPECIAL = "[\\n\\r|?*<\":\\\\>/']+";
private static final String CHARSET_ONLY_LETTERS_AND_DIGITS = "[^\\w\\d]+";
private FilenameUtils() { }
/**
* #143 #44 #42 #22: make sure that the filename does not contain illegal chars.
*
* @param context the context to retrieve strings and preferences from
* @param title the title to create a filename from
* @return the filename
*/
public static String createFilename(final Context context, final String title) {
final SharedPreferences sharedPreferences = PreferenceManager
.getDefaultSharedPreferences(context);
final String charsetLd = context.getString(R.string.charset_letters_and_digits_value);
final String charsetMs = context.getString(R.string.charset_most_special_value);
final String defaultCharset = context.getString(R.string.default_file_charset_value);
final String replacementChar = sharedPreferences.getString(
context.getString(R.string.settings_file_replacement_character_key), "_");
String selectedCharset = sharedPreferences.getString(
context.getString(R.string.settings_file_charset_key), null);
final String charset;
if (selectedCharset == null || selectedCharset.isEmpty()) {
selectedCharset = defaultCharset;
}
if (selectedCharset.equals(charsetLd)) {
charset = CHARSET_ONLY_LETTERS_AND_DIGITS;
} else if (selectedCharset.equals(charsetMs)) {
charset = CHARSET_MOST_SPECIAL;
} else {
charset = selectedCharset; // Is the user using a custom charset?
}
final Pattern pattern = Pattern.compile(charset);
return createFilename(title, pattern, Matcher.quoteReplacement(replacementChar));
}
/**
* Create a valid filename.
*
* @param title the title to create a filename from
* @param invalidCharacters patter matching invalid characters
* @param replacementChar the replacement
* @return the filename
*/
private static String createFilename(final String title, final Pattern invalidCharacters,
final String replacementChar) {
return title.replaceAll(invalidCharacters.pattern(), replacementChar);
}
}

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app/src/main/java/org/schabi/newpipe/util/FilenameUtils.kt Normal file
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/*
* SPDX-FileCopyrightText: 2017-2025 NewPipe contributors <https://newpipe.net>
* SPDX-License-Identifier: GPL-3.0-or-later
*/
package org.schabi.newpipe.util
import android.content.Context
import androidx.preference.PreferenceManager
import org.schabi.newpipe.R
import org.schabi.newpipe.ktx.getStringSafe
import java.util.regex.Matcher
object FilenameUtils {
private const val CHARSET_MOST_SPECIAL = "[\\n\\r|?*<\":\\\\>/']+"
private const val CHARSET_ONLY_LETTERS_AND_DIGITS = "[^\\w\\d]+"
/**
* #143 #44 #42 #22: make sure that the filename does not contain illegal chars.
*
* @param context the context to retrieve strings and preferences from
* @param title the title to create a filename from
* @return the filename
*/
@JvmStatic
fun createFilename(context: Context, title: String): String {
val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
val charsetLd = context.getString(R.string.charset_letters_and_digits_value)
val charsetMs = context.getString(R.string.charset_most_special_value)
val defaultCharset = context.getString(R.string.default_file_charset_value)
val replacementChar = sharedPreferences.getStringSafe(
context.getString(R.string.settings_file_replacement_character_key), "_"
)
val selectedCharset = sharedPreferences.getStringSafe(
context.getString(R.string.settings_file_charset_key), ""
).ifEmpty { defaultCharset }
val charset = when (selectedCharset) {
charsetLd -> CHARSET_ONLY_LETTERS_AND_DIGITS
charsetMs -> CHARSET_MOST_SPECIAL
else -> selectedCharset // Is the user using a custom charset?
}
return createFilename(title, charset, Matcher.quoteReplacement(replacementChar))
}
/**
* Create a valid filename.
*
* @param title the title to create a filename from
* @param invalidCharacters patter matching invalid characters
* @param replacementChar the replacement
* @return the filename
*/
private fun createFilename(
title: String,
invalidCharacters: String,
replacementChar: String
): String {
return title.replace(invalidCharacters.toRegex(), replacementChar)
}
}