dev.dewy.nbt.utils.StringUtils Maven / Gradle / Ivy

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Flexible and intuitive library for reading and writing Minecraft's NBT format, with emphasis on custom tags.

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package dev.dewy.nbt.utils;

import dev.dewy.nbt.api.snbt.SnbtConfig;

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class StringUtils {
    public static String escapeSnbt(String str) {
        StringBuilder sb = new StringBuilder(" ");

        char quote = 0;
        for (int i = 0; i < str.length(); ++i) {
            char current = str.charAt(i);

            if (current == '\\') {
                sb.append('\\');
            } else if (current == '"' || current == '\'') {
                if (quote == 0) {
                    quote = current == '"' ? '\'' : '"';
                }

                if (quote == current) {
                    sb.append('\\');
                }
            }

            sb.append(current);
        }

        if (quote == 0) {
            quote = '"';
        }

        sb.setCharAt(0, quote);
        sb.append(quote);

        return sb.toString();
    }

    public static String multiplyIndent(int by, SnbtConfig config) {
        return new String(new char[by * config.getIndentSpaces()]).replace("\0", " ");
    }

    public static String[] getMatches(Pattern regex, String in) {
        List matches = new ArrayList<>();
        Matcher matcher = regex.matcher(in);

        while (matcher.find()) {
            matches.add(matcher.group());
        }

        return matches.toArray(new String[0]);
    }
}