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Alexander Söderberg 2020-09-27 23:04:15 +02:00
parent 0064093dbf
commit c74cda3a0f
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207 changed files with 2689 additions and 611 deletions
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cloud-annotations/src/main/java/com/intellectualsites/commands/annotations/SyntaxParser.java
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//
// MIT License
//
// Copyright (c) 2020 Alexander Söderberg
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
package com.intellectualsites.commands.annotations;
import javax.annotation.Nonnull;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.StringTokenizer;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.regex.Pattern;
/**
* Parses command syntax into syntax fragments
*/
final class SyntaxParser implements Function<String, LinkedHashMap<String, SyntaxFragment>> {
private static final Predicate<String> PATTERN_ARGUMENT_LITERAL = Pattern.compile("([A-Za-z0-9]+)(|([A-Za-z0-9]+))*")
.asPredicate();
private static final Predicate<String> PATTERN_ARGUMENT_REQUIRED = Pattern.compile("<([A-Za-z0-9]+)>")
.asPredicate();
private static final Predicate<String> PATTERN_ARGUMENT_OPTIONAL = Pattern.compile("\\[([A-Za-z0-9]+)]")
.asPredicate();
@Override
public LinkedHashMap<String, SyntaxFragment> apply(@Nonnull final String syntax) {
final StringTokenizer stringTokenizer = new StringTokenizer(syntax, " ");
final LinkedHashMap<String, SyntaxFragment> map = new LinkedHashMap<>();
while (stringTokenizer.hasMoreTokens()) {
final String token = stringTokenizer.nextToken();
String major;
List<String> minor = new ArrayList<>();
ArgumentMode mode;
if (PATTERN_ARGUMENT_REQUIRED.test(token)) {
major = token.substring(1, token.length() - 1);
mode = ArgumentMode.REQUIRED;
} else if (PATTERN_ARGUMENT_OPTIONAL.test(token)) {
major = token.substring(1, token.length() - 1);
mode = ArgumentMode.OPTIONAL;
} else if (PATTERN_ARGUMENT_LITERAL.test(token)) {
final String[] literals = token.split("\\|");
/* Actually use the other literals as well */
major = literals[0];
minor.addAll(Arrays.asList(literals).subList(1, literals.length));
mode = ArgumentMode.LITERAL;
} else {
throw new IllegalArgumentException(String.format("Unrecognizable syntax token '%s'", syntax));
}
map.put(major, new SyntaxFragment(major, minor, mode));
}
return map;
}
}