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flexmark-java extension for typographic
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package com.vladsch.flexmark.ext.typographic;

import com.vladsch.flexmark.ext.typographic.internal.*;
import com.vladsch.flexmark.html.HtmlRenderer;
import com.vladsch.flexmark.parser.Parser;
import com.vladsch.flexmark.util.data.DataKey;
import com.vladsch.flexmark.util.data.MutableDataHolder;
import com.vladsch.flexmark.util.data.NullableDataKey;
import org.jetbrains.annotations.NotNull;

/**
 * Extension for typographics
 * 
 * Create it with {@link #create()} and then configure it on the builders
 * 
 * The parsed typographic text is turned into {@link TypographicQuotes} and {@link TypographicSmarts} nodes.
 */
public class TypographicExtension implements Parser.ParserExtension, HtmlRenderer.HtmlRendererExtension {
    final public static DataKey ENABLE_QUOTES = new DataKey<>("ENABLE_QUOTES", true);
    final public static DataKey ENABLE_SMARTS = new DataKey<>("ENABLE_SMARTS", true);
    final public static DataKey ANGLE_QUOTE_CLOSE = new DataKey<>("ANGLE_QUOTE_CLOSE", "»");
    final public static DataKey ANGLE_QUOTE_OPEN = new DataKey<>("ANGLE_QUOTE_OPEN", "«");
    final public static NullableDataKey ANGLE_QUOTE_UNMATCHED = new NullableDataKey<>("ANGLE_QUOTE_UNMATCHED");
    final public static DataKey DOUBLE_QUOTE_CLOSE = new DataKey<>("DOUBLE_QUOTE_CLOSE", "”");
    final public static DataKey DOUBLE_QUOTE_OPEN = new DataKey<>("DOUBLE_QUOTE_OPEN", "“");
    final public static NullableDataKey DOUBLE_QUOTE_UNMATCHED = new NullableDataKey<>("DOUBLE_QUOTE_UNMATCHED");
    final public static DataKey ELLIPSIS = new DataKey<>("ELLIPSIS", "…");
    final public static DataKey ELLIPSIS_SPACED = new DataKey<>("ELLIPSIS_SPACED", "…");
    final public static DataKey EM_DASH = new DataKey<>("EM_DASH", "—");
    final public static DataKey EN_DASH = new DataKey<>("EN_DASH", "–");
    final public static DataKey SINGLE_QUOTE_CLOSE = new DataKey<>("SINGLE_QUOTE_CLOSE", "’");
    final public static DataKey SINGLE_QUOTE_OPEN = new DataKey<>("SINGLE_QUOTE_OPEN", "‘");
    final public static DataKey SINGLE_QUOTE_UNMATCHED = new DataKey<>("SINGLE_QUOTE_UNMATCHED", "’");

    private TypographicExtension() {
    }

    public static TypographicExtension create() {
        return new TypographicExtension();
    }

    @Override
    public void rendererOptions(@NotNull MutableDataHolder options) {

    }

    @Override
    public void parserOptions(MutableDataHolder options) {

    }

    @Override
    public void extend(Parser.Builder parserBuilder) {
        if (ENABLE_QUOTES.get(parserBuilder)) {
            TypographicOptions options = new TypographicOptions(parserBuilder);
            parserBuilder.customDelimiterProcessor(new AngleQuoteDelimiterProcessor(options));
            parserBuilder.customDelimiterProcessor(new SingleQuoteDelimiterProcessor(options));
            parserBuilder.customDelimiterProcessor(new DoubleQuoteDelimiterProcessor(options));
        }
        if (ENABLE_SMARTS.get(parserBuilder)) {
            parserBuilder.customInlineParserExtensionFactory(new SmartsInlineParser.Factory());
        }
    }

    @Override
    public void extend(@NotNull HtmlRenderer.Builder htmlRendererBuilder, @NotNull String rendererType) {
        if (htmlRendererBuilder.isRendererType("HTML") || htmlRendererBuilder.isRendererType("JIRA")) {
            htmlRendererBuilder.nodeRendererFactory(new TypographicNodeRenderer.Factory());
        }
    }
}