L2ClientDat decoder.

L2ClientDat/dist/structure/format/SkillNameFormat.java

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+import l2god.listeners.FormatListener;
+import l2god.util.Util;
+
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class SkillNameFormat implements FormatListener
+{
+	private static final Pattern pattern = Pattern.compile("\\bskill_txt_begin\\b(.*?)\\bskill_txt_end\\b", Pattern.DOTALL);
+	private static final Pattern pattern2 = Pattern.compile("\\bskill_begin\\b(.*?)\\bskill_end\\b", Pattern.DOTALL);
+
+	@Override
+	public String decode(String str)
+	{
+		Matcher m = pattern.matcher(str);
+		Map<Integer, String> indexes = new HashMap<>();
+		while(m.find())
+		{
+			Map<String, String> params = Util.stringToMap(m.group(1));
+			String name = params.get("name");
+			indexes.put(Integer.valueOf(params.get("index")), name.substring(1, name.length() - 1));
+		}
+
+		StringBuilder builder = new StringBuilder();
+		Matcher m2 = pattern2.matcher(str);
+		while(m2.find())
+		{
+			Map<String, String> params = Util.stringToMap(m2.group(1));
+			setNameByIndex(indexes, params, "name");
+			setNameByIndex(indexes, params, "desc");
+			setNameByIndex(indexes, params, "desc_param");
+			setNameByIndex(indexes, params, "enchant_name");
+			setNameByIndex(indexes, params, "enchant_name_param");
+			setNameByIndex(indexes, params, "enchant_desc");
+			setNameByIndex(indexes, params, "enchant_desc_param");
+
+			builder.append("skill_begin\t").append(Util.mapToString(params)).append("skill_end").append("\r\n");
+		}
+
+		return builder.toString();
+	}
+
+	@Override
+	public String encode(String str)
+	{
+		Map<String, String> indexes = new LinkedHashMap<>();
+		Map<Long, String> sorted = new TreeMap<>();
+
+		Matcher m2 = pattern2.matcher(str);
+		while(m2.find())
+		{
+			Map<String, String> params = Util.stringToMap(m2.group(1));
+			setIndexByName(indexes, params, "name");
+			setIndexByName(indexes, params, "desc");
+			setIndexByName(indexes, params, "desc_param");
+			setIndexByName(indexes, params, "enchant_name");
+			setIndexByName(indexes, params, "enchant_name_param");
+			setIndexByName(indexes, params, "enchant_desc");
+			setIndexByName(indexes, params, "enchant_desc_param");
+
+			String result = "skill_begin\t" + Util.mapToString(params) + "skill_end\r\n";
+
+			int id = Integer.parseInt(params.get("skill_id"));
+			int level = Integer.parseInt(params.get("skill_level"));
+			int subLevel = Integer.parseInt(params.get("skill_sublevel"));
+
+			sorted.put(getSkillHashCode(id, level, subLevel), result);
+		}
+
+		StringBuilder builder = new StringBuilder();
+		for(String key : indexes.keySet())
+		{
+			builder.append("skill_txt_begin\tname=").append(key).append("\tindex=").append(indexes.get(key)).append("\tskill_txt_end\r\n");
+		}
+
+		sorted.values().forEach(builder::append);
+
+		return builder.toString();
+	}
+
+	private void setNameByIndex(Map<Integer, String> indexes, Map<String, String> params, String paramName)
+	{
+		params.put(paramName, "[" + indexes.get(Integer.parseInt(params.get(paramName))) + "]");
+	}
+
+	private void setIndexByName(Map<String, String> indexes, Map<String, String> params, String paramName)
+	{
+		String name = params.get(paramName);
+		if(indexes.containsKey(name))
+		{
+			params.put(paramName, indexes.get(name));
+			return;
+		}
+
+		String index = String.valueOf(indexes.size());
+		indexes.put(name, index);
+		params.put(paramName, index);
+	}
+
+	private static long getSkillHashCode(int skillId, int skillLevel, int subLevel)
+	{
+		if(subLevel > 0)
+			return (skillId * 4294967296L) + (subLevel * 65536) + skillLevel;
+		else
+			return (skillId * 65536) + skillLevel;
+	}
+}