src/game/java/net/minecraft/ChatFormatting.java

package net.minecraft;

import com.google.common.collect.Lists;
import com.mojang.serialization.Codec;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import javax.annotation.Nullable;
import net.minecraft.util.StringRepresentable;
import org.jetbrains.annotations.Contract;

public enum ChatFormatting implements StringRepresentable {
    BLACK("BLACK", '0', 0, 0),
    DARK_BLUE("DARK_BLUE", '1', 1, 170),
    DARK_GREEN("DARK_GREEN", '2', 2, 43520),
    DARK_AQUA("DARK_AQUA", '3', 3, 43690),
    DARK_RED("DARK_RED", '4', 4, 11141120),
    DARK_PURPLE("DARK_PURPLE", '5', 5, 11141290),
    GOLD("GOLD", '6', 6, 16755200),
    GRAY("GRAY", '7', 7, 11184810),
    DARK_GRAY("DARK_GRAY", '8', 8, 5592405),
    BLUE("BLUE", '9', 9, 5592575),
    GREEN("GREEN", 'a', 10, 5635925),
    AQUA("AQUA", 'b', 11, 5636095),
    RED("RED", 'c', 12, 16733525),
    LIGHT_PURPLE("LIGHT_PURPLE", 'd', 13, 16733695),
    YELLOW("YELLOW", 'e', 14, 16777045),
    WHITE("WHITE", 'f', 15, 16777215),
    OBFUSCATED("OBFUSCATED", 'k', true),
    BOLD("BOLD", 'l', true),
    STRIKETHROUGH("STRIKETHROUGH", 'm', true),
    UNDERLINE("UNDERLINE", 'n', true),
    ITALIC("ITALIC", 'o', true),
    RESET("RESET", 'r', -1, null);

    public static final Codec<ChatFormatting> CODEC = StringRepresentable.fromEnum(ChatFormatting::values);
    public static final char PREFIX_CODE = '\u00a7';
    private static final Map<String, ChatFormatting> FORMATTING_BY_NAME = Arrays.stream(values())
        .collect(Collectors.toMap(p_126660_ -> cleanName(p_126660_.name), p_126652_ -> (ChatFormatting)p_126652_));
    private static final Pattern STRIP_FORMATTING_PATTERN = Pattern.compile("(?i)\u00a7[0-9A-FK-OR]");
    private final String name;
    private final char code;
    private final boolean isFormat;
    private final String toString;
    private final int id;
    @Nullable
    private final Integer color;

    private static String cleanName(String p_126663_) {
        return p_126663_.toLowerCase(Locale.ROOT).replaceAll("[^a-z]", "");
    }

    private ChatFormatting(final String p_126627_, final char p_126628_, final int p_126629_, @Nullable final Integer p_126630_) {
        this(p_126627_, p_126628_, false, p_126629_, p_126630_);
    }

    private ChatFormatting(final String p_126634_, final char p_126635_, final boolean p_126636_) {
        this(p_126634_, p_126635_, p_126636_, -1, null);
    }

    private ChatFormatting(final String p_126640_, final char p_126641_, final boolean p_126642_, final int p_126643_, @Nullable final Integer p_126644_) {
        this.name = p_126640_;
        this.code = p_126641_;
        this.isFormat = p_126642_;
        this.id = p_126643_;
        this.color = p_126644_;
        this.toString = "\u00a7" + p_126641_;
    }

    public char getChar() {
        return this.code;
    }

    public int getId() {
        return this.id;
    }

    public boolean isFormat() {
        return this.isFormat;
    }

    public boolean isColor() {
        return !this.isFormat && this != RESET;
    }

    @Nullable
    public Integer getColor() {
        return this.color;
    }

    public String getName() {
        return this.name().toLowerCase(Locale.ROOT);
    }

    @Override
    public String toString() {
        return this.toString;
    }

    @Nullable
    @Contract("!null->!null;_->_")
    public static String stripFormatting(@Nullable String p_126650_) {
        return p_126650_ == null ? null : STRIP_FORMATTING_PATTERN.matcher(p_126650_).replaceAll("");
    }

    @Nullable
    public static ChatFormatting getByName(@Nullable String p_126658_) {
        return p_126658_ == null ? null : FORMATTING_BY_NAME.get(cleanName(p_126658_));
    }

    @Nullable
    public static ChatFormatting getById(int p_126648_) {
        if (p_126648_ < 0) {
            return RESET;
        } else {
            for (ChatFormatting chatformatting : values()) {
                if (chatformatting.getId() == p_126648_) {
                    return chatformatting;
                }
            }

            return null;
        }
    }

    @Nullable
    public static ChatFormatting getByCode(char p_126646_) {
        char c0 = Character.toLowerCase(p_126646_);

        for (ChatFormatting chatformatting : values()) {
            if (chatformatting.code == c0) {
                return chatformatting;
            }
        }

        return null;
    }

    public static Collection<String> getNames(boolean p_126654_, boolean p_126655_) {
        List<String> list = Lists.newArrayList();

        for (ChatFormatting chatformatting : values()) {
            if ((!chatformatting.isColor() || p_126654_) && (!chatformatting.isFormat() || p_126655_)) {
                list.add(chatformatting.getName());
            }
        }

        return list;
    }

    @Override
    public String getSerializedName() {
        return this.getName();
    }
}