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Merge pull request #417 from emdete/unicode_emoticons

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improve regex, implement pattern cache
This commit is contained in:
Daniel Gultsch 2014-09-04 10:16:28 +02:00
commit 50f90d37b8
1 changed files with 32 additions and 16 deletions
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48
src/eu/siacs/conversations/utils/UIHelper.java
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@ -544,24 +544,40 @@ public class UIHelper {
return getContactPicture(account.getJid(), size, context, false);
}
}
private final static class EmoticonPattern {
Pattern pattern;
String replacement;
EmoticonPattern(String ascii, int unicode) {
this.pattern = Pattern.compile("(?<=(^|\\s))" + ascii + "(?=(\\s|$))");
this.replacement = new String(new int[]{unicode, }, 0, 1);
}
String replaceAll(String body) {
return pattern.matcher(body).replaceAll(replacement);
}
}
private static final EmoticonPattern[] patterns = new EmoticonPattern[] {
new EmoticonPattern(":-?D", 0x1f600),
new EmoticonPattern("\\^\\^", 0x1f601),
new EmoticonPattern(":'D", 0x1f602),
new EmoticonPattern("\\]-?D", 0x1f608),
new EmoticonPattern(";-?\\)", 0x1f609),
new EmoticonPattern(":-?\\)", 0x1f60a),
new EmoticonPattern("[B8]-?\\)", 0x1f60e),
new EmoticonPattern(":-?\\|", 0x1f610),
new EmoticonPattern(":-?[/\\\\]", 0x1f615),
new EmoticonPattern(":-?\\*", 0x1f617),
new EmoticonPattern(":-?[Ppb]", 0x1f61b),
new EmoticonPattern(":-?\\(", 0x1f61e),
new EmoticonPattern(":-?[0Oo]", 0x1f62e),
new EmoticonPattern("\\\\o/", 0x1F631),
};
public static String transformAsciiEmoticons(String body) {
if (body != null) {
for (String[] r: new String[][]{ // see https://de.wikipedia.org/wiki/Unicodeblock_Smileys
{":-?\\)", " 😀 ", },
{";-?\\)", " 😉 ", },
{":-?D", " 😃 ", },
{":-?[Ppb]", " 😋 ", },
{"8-?\\)", " 😎 ", },
{":-?\\|", " 😐 ", },
{":-?[/\\\\]", " 😕 ", },
{":-?\\*", " 😗 ", },
{":-?[0Oo]", " 😮 ", },
{":-?\\(", " 😞 ", },
{"\\^\\^", " 😁 ", },
}) {
String p = r[0];
p = "(^" + p + "$|^" + p + "\\s+|\\s+" + p + "\\s+|\\s+" + p + "$)";
body = body.replaceAll(p, r[1]);
for (EmoticonPattern p: patterns) {
body = p.replaceAll(body);
}
body = body.trim();
}