JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2002-2016, the original author or authors.
 *
 * This software is distributable under the BSD license. See the terms of the
 * BSD license in the documentation provided with this software.
 *
 * https://opensource.org/licenses/BSD-3-Clause
 */
package jdk.internal.org.jline.reader;

public interface Parser {

    ParsedLine parse(String line, int cursor, ParseContext context) throws SyntaxError;

    default ParsedLine parse(String line, int cursor) throws SyntaxError {
        return parse(line, cursor, ParseContext.UNSPECIFIED);
    }

    default boolean isEscapeChar(char ch) {
        return ch == '\\';
    }

    enum ParseContext {
        UNSPECIFIED,

        /** Try a real "final" parse.
         * May throw EOFError in which case we have incomplete input.
         */
        ACCEPT_LINE,

        /** Parse to find completions (typically after a Tab).
         * We should tolerate and ignore errors.
         */
        COMPLETE,

        /** Called when we need to update the secondary prompts.

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