Add enum to lineRule and create demo

demo/62-paragraph-spacing.ts

@@ -0,0 +1,34 @@
+// Simple example to add text to a document
+// Import from 'docx' rather than '../build' if you install from npm
+import * as fs from "fs";
+import { Document, LineRuleType, Packer, Paragraph, TextRun } from "../build";
+
+const doc = new Document();
+
+doc.addSection({
+    properties: {},
+    children: [
+        new Paragraph({
+            spacing: {
+                after: 5000,
+                before: 5000,
+            },
+            children: [new TextRun("Hello World")],
+        }),
+        new Paragraph({
+            spacing: {
+                line: 2000,
+                lineRule: LineRuleType.AUTO,
+            },
+            children: [
+                new TextRun(
+                    "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed turpis ex, aliquet et faucibus quis, euismod in odio. Fusce gravida tempor nunc sed lacinia. Nulla sed dolor fringilla, fermentum libero ut, egestas ex. Donec pellentesque metus non orci lacinia bibendum. Cras porta ex et mollis hendrerit. Suspendisse id lectus suscipit, elementum lacus eu, convallis felis. Fusce sed bibendum dolor, id posuere ligula. Aliquam eu elit ut urna eleifend vestibulum. Praesent condimentum at turpis sed scelerisque. Suspendisse porttitor metus nec vestibulum egestas. Sed in eros sapien. Morbi efficitur placerat est a consequat. Nunc bibendum porttitor mi nec tempus. Morbi dictum augue porttitor nisi sodales sodales.",
+                ),
+            ],
+        }),
+    ],
+});
+
+Packer.toBuffer(doc).then((buffer) => {
+    fs.writeFileSync("My Document.docx", buffer);
+});

docs/usage/paragraph.md

@@ -176,12 +176,12 @@ Adding spacing between paragraphs
 
 ### ISpacingProperties
 
-| Property | Type     | Notes    |
-| -------- | -------- | -------- |
-| after    | `number` | Optional |
-| before   | `number` | Optional |
-| line     | `number` | Optional |
-| lineRule | `string` | Optional |
+| Property | Type           | Notes    |
+| -------- | -------------- | -------- |
+| after    | `number`       | Optional |
+| before   | `number`       | Optional |
+| line     | `number`       | Optional |
+| lineRule | `LineRuleType` | Optional |
 
 **Example:**
 

src/file/footnotes/footnotes.ts

@@ -1,6 +1,6 @@
 import { XmlComponent } from "file/xml-components";
 
-import { Paragraph } from "../paragraph";
+import { LineRuleType, Paragraph } from "../paragraph";
 import { Footnote, FootnoteType } from "./footnote/footnote";
 import { ContinuationSeperatorRun } from "./footnote/run/continuation-seperator-run";
 import { SeperatorRun } from "./footnote/run/seperator-run";
@@ -40,7 +40,7 @@ export class FootNotes extends XmlComponent {
                     spacing: {
                         after: 0,
                         line: 240,
-                        lineRule: "auto",
+                        lineRule: LineRuleType.AUTO,
                     },
                     children: [new SeperatorRun()],
                 }),
@@ -57,7 +57,7 @@ export class FootNotes extends XmlComponent {
                     spacing: {
                         after: 0,
                         line: 240,
-                        lineRule: "auto",
+                        lineRule: LineRuleType.AUTO,
                     },
                     children: [new ContinuationSeperatorRun()],
                 }),

src/file/paragraph/formatting/spacing.ts

@@ -1,11 +1,18 @@
 // http://officeopenxml.com/WPspacing.php
 import { Attributes, XmlAttributeComponent, XmlComponent } from "file/xml-components";
 
+export enum LineRuleType {
+    AT_LEAST = "atLeast",
+    EXACTLY = "exactly",
+    AUTO = "auto",
+}
 export interface ISpacingProperties {
     readonly after?: number;
     readonly before?: number;
     readonly line?: number;
-    readonly lineRule?: string;
+    readonly lineRule?: LineRuleType;
+    readonly beforeAutoSpacing?: boolean;
+    readonly afterAutoSpacing?: boolean;
 }
 
 class SpacingAttributes extends XmlAttributeComponent<ISpacingProperties> {

src/file/styles/style/default-styles.ts

@@ -1,5 +1,7 @@
 import { UnderlineType } from "file/paragraph/run/underline";
 
+import { LineRuleType } from "file/paragraph";
+
 import { IBaseCharacterStyleOptions, StyleForCharacter } from "./character-style";
 import { IBaseParagraphStyleOptions, IParagraphStyleOptions, StyleForParagraph } from "./paragraph-style";
 
@@ -121,7 +123,7 @@ export class FootnoteText extends StyleForParagraph {
                 spacing: {
                     after: 0,
                     line: 240,
-                    lineRule: "auto",
+                    lineRule: LineRuleType.AUTO,
                 },
             },
             run: {