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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.

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/*
 * #%L
 * SciJava Common shared library for SciJava software.
 * %%
 * Copyright (C) 2009 - 2017 Board of Regents of the University of
 * Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck
 * Institute of Molecular Cell Biology and Genetics.
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * #L%
 */

package org.scijava.parse;

import org.scijava.service.SciJavaService;

/**
 * Interface for service that parses strings.
 *
 * @author Curtis Rueden
 */
public interface ParseService extends SciJavaService {

	/**
	 * Parses a comma-delimited list of data elements.
	 * 
	 * Some data elements might be {@code key=value} pairs, while others might be
	 * raw values (i.e., no equals sign).
	 * 
	 * 
	 * @param arg The string to parse.
	 * @return A parsed list of {@link Item}s.
	 * @throws IllegalArgumentException If the string does not conform to expected
	 *           syntax.
	 */
	default Items parse(final String arg) {
		return parse(arg, true);
	}

	/**
	 * Parses a comma-delimited list of data elements.
	 * 
	 * Some data elements might be {@code key=value} pairs, while others might be
	 * raw values (i.e., no equals sign).
	 * 
	 * 
	 * @param arg The string to parse.
	 * @param strict Whether to fail fast when encountering an unassigned variable
	 *          token.
	 * @return A parsed list of {@link Item}s.
	 * @throws IllegalArgumentException If the string does not conform to expected
	 *           syntax.
	 */
	Items parse(String arg, boolean strict);
}