| | |
| | import com.vladsch.flexmark.ast.Text; |
| | -import com.vladsch.flexmark.html.HtmlRenderer; |
| | import com.vladsch.flexmark.html.HtmlWriter; |
| | import com.vladsch.flexmark.html.renderer.NodeRenderer; |
| | import com.vladsch.flexmark.html.renderer.NodeRendererContext; |
| | import com.vladsch.flexmark.html.renderer.NodeRendererFactory; |
| | import com.vladsch.flexmark.html.renderer.NodeRenderingHandler; |
| | -import com.vladsch.flexmark.util.ast.Node; |
| | import com.vladsch.flexmark.util.ast.TextCollectingVisitor; |
| | import com.vladsch.flexmark.util.data.DataHolder; |
| | import com.vladsch.flexmark.util.data.MutableDataHolder; |
| | import org.jetbrains.annotations.NotNull; |
| | import org.jetbrains.annotations.Nullable; |
| | |
| | +import java.util.LinkedHashMap; |
| | import java.util.Map; |
| | import java.util.Set; |
| | |
| | import static com.scrivenvar.processors.text.TextReplacementFactory.replace; |
| | +import static com.vladsch.flexmark.html.HtmlRenderer.Builder; |
| | +import static com.vladsch.flexmark.html.HtmlRenderer.HtmlRendererExtension; |
| | |
| | /** |
| | * Responsible for substituting multi-codepoint glyphs with single codepoint |
| | * glyphs. The text is adorned with ligatures prior to rendering as HTML. |
| | * This requires a font that supports ligatures. |
| | * <p> |
| | * TODO: I18N https://github.com/DaveJarvis/scrivenvar/issues/81 |
| | * </p> |
| | */ |
| | -public class LigatureExtension |
| | - implements HtmlRenderer.HtmlRendererExtension { |
| | - private final static Map<String, String> LIGATURES_SHORT = Map.of( |
| | +public class LigatureExtension implements HtmlRendererExtension { |
| | + /** |
| | + * Retain insertion order so that ligature substitution uses longer ligatures |
| | + * ahead of shorter ligatures. The word "ruffian" should use the "ffi" |
| | + * ligature, not the "ff" ligature. |
| | + */ |
| | + private final static Map<String, String> LIGATURES = new LinkedHashMap<>(); |
| | + |
| | + static { |
| | + LIGATURES.put( "ffi", "\uFB03" ); |
| | + LIGATURES.put( "ffl", "\uFB04" ); |
| | + LIGATURES.put( "ff", "\uFB00" ); |
| | + LIGATURES.put( "fi", "\uFB01" ); |
| | + LIGATURES.put( "fl", "\uFB02" ); |
| | + LIGATURES.put( "ft", "\uFB05" ); |
| | + LIGATURES.put( "AE", "\u00C6" ); |
| | + LIGATURES.put( "OE", "\u0152" ); |
| | // "ae", "\u00E6", |
| | // "oe", "\u0153", |
| | - "AE", "\u00C6", |
| | - "OE", "\u0152", |
| | - "ff", "\uFB00", |
| | - "fi", "\uFB01", |
| | - "fl", "\uFB02", |
| | - "ft", "\uFB05" |
| | - ); |
| | - |
| | - private final static Map<String, String> LIGATURES_LONG = Map.of( |
| | - "ffi", "\uFB03", |
| | - "ffl", "\uFB04" |
| | - ); |
| | + } |
| | |
| | private static class LigatureRenderer implements NodeRenderer { |
| | - |
| | private final TextCollectingVisitor mVisitor = new TextCollectingVisitor(); |
| | |
 |
| | } |
| | |
| | - private <N extends Node> void render( |
| | - @NotNull final N n, |
| | - @NotNull final NodeRendererContext nodeRendererContext, |
| | + /** |
| | + * This will pick the fastest string replacement algorithm based on the |
| | + * text length. The insertion order of the {@link #LIGATURES} is |
| | + * important to give precedence to longer ligatures. |
| | + * |
| | + * @param textNode The text node containing text to replace with ligatures. |
| | + * @param context Not used. |
| | + * @param html Where to write the text adorned with ligatures. |
| | + */ |
| | + private void render( |
| | + @NotNull final Text textNode, |
| | + @NotNull final NodeRendererContext context, |
| | @NotNull final HtmlWriter html ) { |
| | - final var text = mVisitor.collectAndGetText( n ); |
| | - html.text( replace( replace( text, LIGATURES_LONG ), LIGATURES_SHORT ) ); |
| | + final var text = mVisitor.collectAndGetText( textNode ); |
| | + html.text( replace( text, LIGATURES ) ); |
| | } |
| | } |
| | |
| | - public static class Factory implements NodeRendererFactory { |
| | + private static class Factory implements NodeRendererFactory { |
| | @NotNull |
| | @Override |
|
| | |
| | @Override |
| | - public void extend( @NotNull final HtmlRenderer.Builder builder, |
| | + public void extend( @NotNull final Builder builder, |
| | @NotNull final String rendererType ) { |
| | if( "HTML".equalsIgnoreCase( rendererType ) ) { |