/**
* Fix to https://github.com/TwidereProject/Twidere-Android/issues/449
*
* @param string
*/
public static void fixSHY(Spannable string) {
for (int i = 0, j = string.length(); i < j; i++) {
if (string.charAt(i) == '\u00ad') {
string.setSpan(new ZeroWidthSpan(), i, i + 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
}
/**
* If a translator has messed up the edges of paragraph-level markup, fix it to actually cover the
* entire paragraph that it is attached to instead of just whatever range they put it on.
*/
private static void addParagraphSpan(Spannable buffer, Object what, int start, int end) {
int len = buffer.length();
if (start != 0 && start != len && buffer.charAt(start - 1) != '\n') {
for (start--; start > 0; start--) {
if (buffer.charAt(start - 1) == '\n') {
break;
}
}
}
if (end != 0 && end != len && buffer.charAt(end - 1) != '\n') {
for (end++; end < len; end++) {
if (buffer.charAt(end - 1) == '\n') {
break;
}
}
}
buffer.setSpan(what, start, end, Spannable.SPAN_PARAGRAPH);
}
public static CharSequence rot13(final Spannable span) {
// I needed to re-implement the rot13(String) encryption here because we must work on
// a SpannableStringBuilder instead of the pure text and we must replace each character inline.
// Otherwise we loose all the images, colors and so on...
final SpannableStringBuilder buffer = new SpannableStringBuilder(span);
Rot13Encryption rot13 = new Rot13Encryption();
final int length = span.length();
for (int index = 0; index < length; index++) {
char c = span.charAt(index);
buffer.replace(index, index + 1, String.valueOf(rot13.getNextEncryptedCharacter(c)));
}
return buffer;
}
private static void addUnprintable(Spannable spannable, int start, int end, int color) {
for (int i = start; i < end; ++i) {
ReplacementSpan span = null;
char c = spannable.charAt(i);
if (c == '\r' || c == '\n' || c == '\t') {
// do nothing
} else if (c >= 0x00 && (c - 0x00) < C0.length) {
span = new UnprintableSpan(C0[c - 0x00], color);
} else if (c >= 0x80 && (c - 0x80) < C1.length) {
span = new UnprintableSpan(C1[c - 0x80], color);
}
// else if (Character.isISOControl(c))
// {
// span = new UnprintableSpan('u' + Integer.toString(c, 16), color);
// }
if (span != null) {
// Log.d(TAG, " span " + i + " " + (int)c);
spannable.setSpan(span, i, i + 1, android.text.Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
}
