mirror of
https://github.com/BlueMap-Minecraft/BlueMap.git
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82 lines
3.2 KiB
Java
82 lines
3.2 KiB
Java
/*
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* This file is part of BlueMap, licensed under the MIT License (MIT).
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*
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* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
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* Copyright (c) contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package de.bluecolored.bluemap.common.config;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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import java.util.function.Function;
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import java.util.function.Predicate;
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import java.util.regex.Pattern;
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public class ConfigTemplate {
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private static final Pattern TEMPLATE_VARIABLE = Pattern.compile("\\$\\{([\\w\\-.]+)}"); // ${variable}
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private static final Pattern TEMPLATE_CONDITIONAL = Pattern.compile("\\$\\{([\\w\\-.]+)<<([\\s\\S]*?)>>}"); // ${conditionid<< ... >>}
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private final String template;
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private final Set<String> enabledConditionals;
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private final Map<String, String> variables;
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public ConfigTemplate(String template) {
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this.template = template;
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this.enabledConditionals = new HashSet<>();
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this.variables = new HashMap<>();
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}
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public ConfigTemplate setConditional(String conditional, boolean enabled) {
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if (enabled) enabledConditionals.add(conditional);
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else enabledConditionals.remove(conditional);
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return this;
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}
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public ConfigTemplate setVariable(String variable, String value) {
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if (value == null) variables.remove(variable);
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else variables.put(variable, replacerEscape(value));
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return this;
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}
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public String build() {
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return build(this.template, enabledConditionals::contains, s -> variables.getOrDefault(s, "?"));
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}
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private String build(String template, Predicate<? super String> conditionalResolver, Function<? super String, String> variableResolver) {
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String result = TEMPLATE_CONDITIONAL.matcher(template).replaceAll(match ->
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conditionalResolver.test(match.group(1)) ? replacerEscape(build(match.group(2), conditionalResolver, variableResolver)) : ""
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);
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return TEMPLATE_VARIABLE.matcher(result).replaceAll(match -> variableResolver.apply(match.group(1)));
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}
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private String replacerEscape(String raw) {
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return raw
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.replace("\\", "\\\\")
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.replace("$", "\\$");
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}
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}
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