如何过滤emoji表情

1. python 怎么过滤 emoji 表情符号

||滤该表情
[java] view plain
public static String filterEmoji(String source) {
if (!containsEmoji(source)) {
return source;// 包含直接返
}

StringBuilder buf = null;
int len = source.length();
for (int i = 0; i < len; i++) {
char codePoint = source.charAt(i);
if (!isEmojiCharacter(codePoint)) {
if (buf == null) {
buf = new StringBuilder(source.length());
}
buf.append(codePoint);
} else {
}
}
if (buf == null) {
return "";
} else {
if (buf.length() == len) {// 意义于尽能少toString重新字符串
buf = null;
return source;
} else {
return buf.toString();
}
}
}

[java] view plain
// 判别否包含Emoji表情
private static boolean containsEmoji(String str) {
int len = str.length();
for (int i = 0; i < len; i++) {
if (isEmojiCharacter(str.charAt(i))) {
return true;
}
}
return false;
}

private static boolean isEmojiCharacter(char codePoint) {
return !((codePoint == 0x0) ||
(codePoint == 0x9) ||
(codePoint == 0xA) ||
(codePoint == 0xD) ||
((codePoint >= 0x20) && (codePoint <= 0xD7FF)) ||
((codePoint >= 0xE000) && (codePoint <= 0xFFFD)) ||
((codePoint >= 0x10000) && (codePoint <= 0x10FFFF)));
}