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Convert UploadMediaDetailInputFilter to kotlin

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This commit is contained in:
Paul Hawke 2024-12-21 22:47:16 -06:00
parent e3aac88f5b
commit 3fcefd5c2f
2 changed files with 69 additions and 81 deletions
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81
app/src/main/java/fr/free/nrw/commons/upload/UploadMediaDetailInputFilter.java
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@ -1,81 +0,0 @@
package fr.free.nrw.commons.upload;
import android.text.InputFilter;
import android.text.Spanned;
import java.util.regex.Pattern;
/**
* An {@link InputFilter} class that removes characters blocklisted in Wikimedia titles. The list
* of blocklisted characters is linked below.
* @see <a href="https://commons.wikimedia.org/wiki/MediaWiki:Titleblacklist"></a>wikimedia.org</a>
*/
public class UploadMediaDetailInputFilter implements InputFilter {
private final Pattern[] patterns;
/**
* Initializes the blocklisted patterns.
*/
public UploadMediaDetailInputFilter() {
patterns = new Pattern[]{
Pattern.compile("[\\x{00A0}\\x{1680}\\x{180E}\\x{2000}-\\x{200B}\\x{2028}\\x{2029}\\x{202F}\\x{205F}]"),
Pattern.compile("[\\x{202A}-\\x{202E}]"),
Pattern.compile("\\p{Cc}"),
Pattern.compile("\\x{3A}"), // Added for colon(:)
Pattern.compile("\\x{FEFF}"),
Pattern.compile("\\x{00AD}"),
Pattern.compile("[\\x{E000}-\\x{F8FF}\\x{FFF0}-\\x{FFFF}]"),
Pattern.compile("[^\\x{0000}-\\x{FFFF}\\p{sc=Han}]")
};
}
/**
* Checks if the source text contains any blocklisted characters.
* @param source input text
* @return contains a blocklisted character
*/
private Boolean checkBlocklisted(final CharSequence source) {
for (final Pattern pattern: patterns) {
if (pattern.matcher(source).find()) {
return true;
}
}
return false;
}
/**
* Removes any blocklisted characters from the source text.
* @param source input text
* @return a cleaned character sequence
*/
private CharSequence removeBlocklisted(CharSequence source) {
for (final Pattern pattern: patterns) {
source = pattern.matcher(source).replaceAll("");
}
return source;
}
/**
* Filters out any blocklisted characters.
* @param source {@inheritDoc}
* @param start {@inheritDoc}
* @param end {@inheritDoc}
* @param dest {@inheritDoc}
* @param dstart {@inheritDoc}
* @param dend {@inheritDoc}
* @return {@inheritDoc}
*/
@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart,
int dend) {
if (checkBlocklisted(source)) {
if (start == dstart && dest.length() > 0) {
return dest;
}
return removeBlocklisted(source);
}
return null;
}
}

69
app/src/main/java/fr/free/nrw/commons/upload/UploadMediaDetailInputFilter.kt Normal file
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@ -0,0 +1,69 @@
package fr.free.nrw.commons.upload
import android.text.InputFilter
import android.text.Spanned
import java.util.regex.Pattern
/**
* An [InputFilter] class that removes characters blocklisted in Wikimedia titles. The list
* of blocklisted characters is linked below.
* @see [](https://commons.wikimedia.org/wiki/MediaWiki:Titleblacklist)wikimedia.org
*/
class UploadMediaDetailInputFilter : InputFilter {
private val patterns = listOf(
Pattern.compile("[\\x{00A0}\\x{1680}\\x{180E}\\x{2000}-\\x{200B}\\x{2028}\\x{2029}\\x{202F}\\x{205F}]"),
Pattern.compile("[\\x{202A}-\\x{202E}]"),
Pattern.compile("\\p{Cc}"),
Pattern.compile("\\x{3A}"), // Added for colon(:)
Pattern.compile("\\x{FEFF}"),
Pattern.compile("\\x{00AD}"),
Pattern.compile("[\\x{E000}-\\x{F8FF}\\x{FFF0}-\\x{FFFF}]"),
Pattern.compile("[^\\x{0000}-\\x{FFFF}\\p{sc=Han}]")
)
/**
* Checks if the source text contains any blocklisted characters.
* @param source input text
* @return contains a blocklisted character
*/
private fun checkBlocklisted(source: CharSequence): Boolean =
patterns.any { it.matcher(source).find() }
/**
* Removes any blocklisted characters from the source text.
* @param source input text
* @return a cleaned character sequence
*/
private fun removeBlocklisted(input: CharSequence): CharSequence {
var source = input
patterns.forEach {
source = it.matcher(source).replaceAll("")
}
return source
}
/**
* Filters out any blocklisted characters.
* @param source {@inheritDoc}
* @param start {@inheritDoc}
* @param end {@inheritDoc}
* @param dest {@inheritDoc}
* @param dstart {@inheritDoc}
* @param dend {@inheritDoc}
* @return {@inheritDoc}
*/
override fun filter(
source: CharSequence, start: Int, end: Int, dest: Spanned, dstart: Int,
dend: Int
): CharSequence? {
if (checkBlocklisted(source)) {
if (start == dstart && dest.isNotEmpty()) {
return dest
}
return removeBlocklisted(source)
}
return null
}
}