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package org.zwobble.mammoth;
import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import org.zwobble.mammoth.documents.DocumentElement;
import org.zwobble.mammoth.documents.HasChildren;
import org.zwobble.mammoth.documents.Paragraph;
import org.zwobble.mammoth.documents.Text;
import org.zwobble.mammoth.docx.DocxFile;
import org.zwobble.mammoth.docx.ZippedDocxFile;
import org.zwobble.mammoth.html.Html;
import org.zwobble.mammoth.results.Result;
import org.zwobble.mammoth.styles.HtmlPath;
import org.zwobble.mammoth.styles.ParagraphMatcher;
import org.zwobble.mammoth.styles.StyleMap;
import org.zwobble.mammoth.util.Casts;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.zip.ZipFile;
import static org.zwobble.mammoth.docx.DocumentReader.readDocument;
import static org.zwobble.mammoth.util.MammothLists.list;
public class Mammoth {
public static class Options {
public static final Options DEFAULT = new Options("", false);
private final String idPrefix;
private final boolean preserveEmptyParagraphs;
public Options(String idPrefix, boolean preserveEmptyParagraphs) {
this.idPrefix = idPrefix;
this.preserveEmptyParagraphs = preserveEmptyParagraphs;
}
public Options idPrefix(String prefix) {
return new Options(prefix, preserveEmptyParagraphs);
}
public Options preserveEmptyParagraphs() {
return new Options(idPrefix, true);
}
}
private static final StyleMap DEFAULT_STYLE_MAP = StyleMap.builder()
.mapParagraph(ParagraphMatcher.styleName("footnote text"), HtmlPath.element("p"))
.mapParagraph(ParagraphMatcher.styleName("endnote text"), HtmlPath.element("p"))
.mapParagraph(ParagraphMatcher.styleName("Footnote"), HtmlPath.element("p"))
.mapParagraph(ParagraphMatcher.styleName("Endnote"), HtmlPath.element("p"))
.mapParagraph(ParagraphMatcher.styleName("Normal"), HtmlPath.element("p"))
.build();
public static Result<String> convertToHtml(File file) {
return convertToHtml(file, Options.DEFAULT);
}
public static Result<String> convertToHtml(File file, Options options) {
return withDocxFile(file, zipFile ->
readDocument(zipFile)
.flatMap(nodes -> DocumentConverter.convertToHtml(options.idPrefix, options.preserveEmptyParagraphs, DEFAULT_STYLE_MAP, nodes))
.map(Html::stripEmpty)
.map(Html::collapse)
.map(Html::write));
}
public static Result<String> extractRawText(File file) {
return withDocxFile(file, zipFile ->
readDocument(zipFile).map(Mammoth::extractRawTextOfChildren));
}
private static <T> T withDocxFile(File file, Function<DocxFile, T> function) {
try (DocxFile zipFile = new ZippedDocxFile(new ZipFile(file))) {
return function.apply(zipFile);
} catch (IOException e) {
throw new UnsupportedOperationException("Should return a result of failure");
}
}
private static String extractRawTextOfChildren(HasChildren parent) {
return extractRawText(parent.getChildren());
}
private static String extractRawText(List<DocumentElement> nodes) {
return String.join("", Iterables.transform(nodes, node -> extractRawText(node)));
}
private static String extractRawText(DocumentElement node) {
return Casts.tryCast(Text.class, node)
.map(Text::getValue)
.orElseGet(() -> {
List<DocumentElement> children = Casts.tryCast(HasChildren.class, node)
.map(HasChildren::getChildren)
.orElse(list());
String suffix = node instanceof Paragraph ? "\n\n" : "";
return extractRawText(children) + suffix;
});
}
}
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