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/**
 * Copyright (c) 2008-2012, http://www.snakeyaml.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.yaml.snakeyaml.events;

import org.yaml.snakeyaml.error.Mark;

/**
 * Marks a scalar value.
 */
public final class ScalarEvent extends NodeEvent {
    private final String tag;
    // style flag of a scalar event indicates the style of the scalar. Possible
    // values are None, '', '\'', '"', '|', '>'
    private final Character style;
    private final String value;
    // The implicit flag of a scalar event is a pair of boolean values that
    // indicate if the tag may be omitted when the scalar is emitted in a plain
    // and non-plain style correspondingly.
    private final ImplicitTuple implicit;

    public ScalarEvent(String anchor, String tag, ImplicitTuple implicit, String value,
            Mark startMark, Mark endMark, Character style) {
        super(anchor, startMark, endMark);
        this.tag = tag;
        this.implicit = implicit;
        this.value = value;
        this.style = style;
    }

    /**
     * Tag of this scalar.
     * 
     * @return The tag of this scalar, or null if no explicit tag
     *         is available.
     */
    public String getTag() {
        return this.tag;
    }

    /**
     * Style of the scalar.
     * 
     * null
     * Flow Style - Plain
     * '\''
     * Flow Style - Single-Quoted
     * '"'
     * Flow Style - Double-Quoted
     * '|'
     * Block Style - Literal
     * '>'
     * Block Style - Folded
     * 
     * 
     * @see Kind/Style
     *      Combinations
     * @return Style of the scalar.
     */
    public Character getStyle() {
        return this.style;
    }

    /**
     * String representation of the value.
     * 
     * Without quotes and escaping.
     * 
     * 
     * @return Value as Unicode string.
     */
    public String getValue() {
        return this.value;
    }

    public ImplicitTuple getImplicit() {
        return this.implicit;
    }

    @Override
    protected String getArguments() {
        return super.getArguments() + ", tag=" + tag + ", " + implicit + ", value=" + value;
    }

    @Override
    public boolean is(Event.ID id) {
        return ID.Scalar == id;
    }
}