contextual spacing

src/file/paragraph/formatting/spacing.ts

@@ -1,5 +1,5 @@
 // http://officeopenxml.com/WPspacing.php
-import { XmlAttributeComponent, XmlComponent } from "file/xml-components";
+import { Attributes, XmlAttributeComponent, XmlComponent } from "file/xml-components";
 
 export interface ISpacingProperties {
     after?: number;
@@ -23,3 +23,14 @@ export class Spacing extends XmlComponent {
         this.root.push(new SpacingAttributes(opts));
     }
 }
+
+export class ContextualSpacing extends XmlComponent {
+    constructor(value: boolean) {
+        super("w:contextualSpacing");
+        this.root.push(
+            new Attributes({
+                val: value === false ? 0 : 1,
+            }),
+        );
+    }
+}

src/file/paragraph/paragraph.ts

@@ -10,7 +10,7 @@ import { Border, ThematicBreak } from "./formatting/border";
 import { IIndentAttributesProperties, Indent } from "./formatting/indent";
 import { KeepLines, KeepNext } from "./formatting/keep";
 import { PageBreak, PageBreakBefore } from "./formatting/page-break";
-import { ISpacingProperties, Spacing } from "./formatting/spacing";
+import { ContextualSpacing, ISpacingProperties, Spacing } from "./formatting/spacing";
 import { Style } from "./formatting/style";
 import { CenterTabStop, LeaderType, LeftTabStop, MaxRightTabStop, RightTabStop } from "./formatting/tab-stop";
 import { NumberProperties } from "./formatting/unordered-list";
@@ -211,6 +211,11 @@ export class Paragraph extends XmlComponent {
         return this;
     }
 
+    public contextualSpacing(value: boolean): Paragraph {
+        this.properties.push(new ContextualSpacing(value));
+        return this;
+    }
+
     public keepNext(): Paragraph {
         this.properties.push(new KeepNext());
         return this;