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package org.zwobble.mammoth.internal.docx;
import org.zwobble.mammoth.internal.documents.NumberingStyle;
import org.zwobble.mammoth.internal.documents.Style;
import org.zwobble.mammoth.internal.xml.XmlElement;
import org.zwobble.mammoth.internal.xml.XmlElementList;
import java.util.Map;
import java.util.Optional;
import static org.zwobble.mammoth.internal.util.Iterables.lazyFilter;
import static org.zwobble.mammoth.internal.util.Maps.*;
public class StylesXml {
public static Styles readStylesXmlElement(XmlElement element) {
XmlElementList styleElements = element.findChildren("w:style");
return new Styles(
readStyles(styleElements, "paragraph"),
readStyles(styleElements, "character"),
readStyles(styleElements, "table"),
readNumberingStyles(styleElements)
);
}
private static Map<String, Style> readStyles(XmlElementList styleElements, String styleType) {
return toMapPreferFirst(
styleElementsOfType(styleElements, styleType),
StylesXml::readStyle
);
}
private static Map.Entry<String, Style> readStyle(XmlElement element) {
String styleId = readStyleId(element);
Optional<String> styleName = element.findChildOrEmpty("w:name").getAttributeOrNone("w:val");
return entry(styleId, new Style(styleId, styleName));
}
private static Map<String, NumberingStyle> readNumberingStyles(XmlElementList styleElements) {
return toMapPreferFirst(
styleElementsOfType(styleElements, "numbering"),
StylesXml::readNumberingStyle
);
}
private static Map.Entry<String, NumberingStyle> readNumberingStyle(XmlElement element) {
String styleId = readStyleId(element);
Optional<String> numId = element
.findChildOrEmpty("w:pPr")
.findChildOrEmpty("w:numPr")
.findChildOrEmpty("w:numId")
.getAttributeOrNone("w:val");
return entry(styleId, new NumberingStyle(numId));
}
private static String readStyleId(XmlElement element) {
return element.getAttribute("w:styleId");
}
private static Iterable<XmlElement> styleElementsOfType(XmlElementList styleElements, String styleType) {
return lazyFilter(styleElements, styleElement -> isStyleType(styleElement, styleType));
}
private static boolean isStyleType(XmlElement styleElement, String styleType) {
return styleElement.getAttribute("w:type").equals(styleType);
}
}
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