32 lines
1.1 KiB
Java
32 lines
1.1 KiB
Java
package net.minecraft.util.parsing.packrat.commands;
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import com.mojang.brigadier.StringReader;
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import com.mojang.brigadier.exceptions.CommandSyntaxException;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import net.minecraft.util.parsing.packrat.DelayedException;
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import net.minecraft.util.parsing.packrat.ParseState;
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import net.minecraft.util.parsing.packrat.Rule;
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public final class GreedyPatternParseRule implements Rule<StringReader, String> {
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private final Pattern pattern;
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private final DelayedException<CommandSyntaxException> error;
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public GreedyPatternParseRule(Pattern pattern, DelayedException<CommandSyntaxException> error) {
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this.pattern = pattern;
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this.error = error;
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}
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public String parse(ParseState<StringReader> parseState) {
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StringReader stringReader = parseState.input();
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String string = stringReader.getString();
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Matcher matcher = this.pattern.matcher(string).region(stringReader.getCursor(), string.length());
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if (!matcher.lookingAt()) {
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parseState.errorCollector().store(parseState.mark(), this.error);
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return null;
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} else {
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stringReader.setCursor(matcher.end());
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return matcher.group(0);
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}
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}
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}
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