Example usage for java.lang Character isSurrogatePair

Introduction

In this page you can find the example usage for java.lang Character isSurrogatePair.

Prototype

public static boolean isSurrogatePair(char high, char low) 

Source Link

Document

Determines whether the specified pair of char values is a valid <a href="http://www.unicode.org/glossary/#surrogate_pair"> Unicode surrogate pair</a>.

Usage

From source file:Main.java

public static void main(String[] args) {
    System.out.println("A valid Unicode surrogate pair: " + Character.isSurrogatePair('\ud800', '\udc00'));
}

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From source file:Main.java

public static boolean isUnicodeSurrogate(String word) { // emoji icons are within these surrogate areas
    if (word != null && word.length() == 2) {
        char[] chArray = word.toCharArray();
        return Character.isSurrogatePair(chArray[0], chArray[1]);
    }//  www. j  a v a2s .c  o  m
    return false;

}

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From source file:mobisocial.musubi.ui.util.EmojiSpannableFactory.java

public void updateSpannable(Spannable span) {
    Spannable source = span;//from  www  .  ja v a2s.  c  o m
    for (int i = 0; i < source.length(); i++) {
        char high = source.charAt(i);
        if (high <= 127) {
            // fast exit ascii
            continue;
        }

        // Block until we're initialized
        waitForEmoji();

        long codePoint = high;
        if (Character.isHighSurrogate(high)) {
            char low = source.charAt(++i);
            codePoint = Character.toCodePoint(high, low);
            if (Character.isSurrogatePair(high, low)) {
                // from BMP
                if (!mEmojiMap.containsKey(codePoint)) {
                    if (i >= source.length() - 2) {
                        continue;
                    }
                    high = source.charAt(++i);
                    if (!Character.isHighSurrogate(high)) {
                        Log.w(TAG, "bad unicode character? " + high);
                        continue;
                    }
                    low = source.charAt(++i);
                    if (!Character.isSurrogatePair(high, low)) {
                        Log.d(TAG, "Bogus unicode surrogate " + high + ", " + low);
                        continue;
                    }
                    int codePoint2 = Character.toCodePoint(high, low);
                    //String label = String.format("U+%X U+%X", codePoint, codePoint2);
                    codePoint = ((long) codePoint << 16) | codePoint2;
                }
            } else {
                Log.d(TAG, "Bogus unicode");
            }
        }

        if (mEmojiMap.containsKey(codePoint)) {
            Bitmap b = mStickerCache.get(codePoint);
            if (b != null) {
                DynamicDrawableSpan im = createStickerSpan(b);
                span.setSpan(im, i, i + 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            } else {
                Log.d(TAG, "failed to decode bitmap for codepoints: " + codePoint);
            }
        }
    }
}

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From source file:com.liferay.events.global.mobile.Utils.java

public static String removeUnicode(String input) {
    if (Validator.isNull(input)) {
        return null;
    }//from   w  ww  .j  a  v  a  2s  . c  o m
    StringBuilder sb = new StringBuilder();

    for (int i = 0; i < input.length(); i++) {
        if (i < (input.length() - 1)) {
            // Emojis are two characters long in java, e.g. a rocket emoji is "\uD83D\uDE80";
            if (Character.isSurrogatePair(input.charAt(i), input.charAt(i + 1))) {
                i += 1; //also skip the second character of the emoji
                continue;
            }
        }
        sb.append(input.charAt(i));
    }
    return sb.toString();
}

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