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package com.google.refine.expr.functions.strings;
import java.util.Properties;
import org.json.JSONException;
import org.json.JSONWriter;
import com.google.refine.grel.Function;
public class UnicodeType implements Function {
@Override
public Object call(Properties bindings, Object[] args) {
if (args.length == 1 && args[0] != null) {
Object o = args[0];
String s = (o instanceof String) ? (String) o : o.toString();
String[] output = new String[s.length()];
for (int i = 0; i < s.length(); i++) {
output[i] = translateType(Character.getType(s.codePointAt(i)));
}
return output;
}
return null;
}
private String translateType(int type) {
switch(type) {
case 0: return "unassigned";
case 1: return "uppercase letter";
case 2: return "lowercase letter";
case 3: return "titlecase letter";
case 4: return "modifier letter";
case 5: return "other letter";
case 6: return "non spacing mark";
case 7: return "enclosing mark";
case 8: return "combining spacing mark";
case 9: return "decimal digit number";
case 10: return "letter number";
case 11: return "other number";
case 12: return "space separator";
case 13: return "line separator";
case 14: return "paragraph separator";
case 15: return "control";
case 16: return "format";
// 17 does not seem to be used
case 18: return "private use";
case 19: return "surrogate";
case 20: return "dash punctuation";
case 21: return "start punctuation";
case 22: return "end punctuation";
case 23: return "connector punctuation";
case 24: return "other punctuation";
case 25: return "math symbol";
case 26: return "currency symbol";
case 27: return "modifier symbol";
case 28: return "other symbol";
case 29: return "initial quote punctuation";
case 30: return "final quote punctuation";
default: return "unknown";
}
}
@Override
public void write(JSONWriter writer, Properties options)
throws JSONException {
writer.object();
writer.key("description"); writer.value("Returns an array of strings describing each character of s in their full unicode notation");
writer.key("params"); writer.value("string s");
writer.key("returns"); writer.value("string");
writer.endObject();
}
}