feat(table): support align option

README.md

@@ -182,14 +182,15 @@ md.strikethrough("Hello, World!");
 // => "~~Hello, World!~~"
 ```
 
-### `table(table: { rows[][], columns[] })`
+### `table()`
 
 Render a markdown table.
 
 **Example:**
 
 ```js
 md.table({
+ align: "center",
  columns: ["Breed", "Origin", "Size", "Temperament"],
  rows: [
    ["Abyssinian", "Egypt", "Medium", "Active"],

src/render.ts

@@ -122,6 +122,7 @@ export function codeBlock(
  *
  * ```js
  * md.table({
+ *  align: "center",
  *  columns: ["Breed", "Origin", "Size", "Temperament"],
  *  rows: [
  *    ["Abyssinian", "Egypt", "Medium", "Active"],
@@ -135,13 +136,24 @@ export function codeBlock(
  * @param table Table object
  * @param table.rows Table rows
  * @param table.columns Table columns
+ * @param table.align Table alignment
  * @returns Rendered markdown string
  *
  * @group render_utils
  */
-export function table(table: { rows: string[][]; columns: string[] }): string {
+export function table(table: {
+  rows: string[][];
+  columns: string[];
+  align?: "left" | "center" | "right";
+}): string {
   const header = `| ${table.columns.join(" | ")} |`;
-  const separator = `| ${table.columns.map(() => "---").join(" | ")} |`;
+  const separator = `| ${table.columns
+    .map(() => {
+      if (table.align === "center") return ":-:";
+      if (table.align === "right") return "--:";
+      return "---";
+    })
+    .join(" | ")} |`;
   const body = table.rows.map((row) => `| ${row.join(" | ")} |`).join("\n");
   return `${header}\n${separator}\n${body}`;
 }

test/render.test.ts

@@ -123,5 +123,62 @@ describe("mdbox", () => {
       | American Bobtail | United States | Medium | Active |
       | Applehead Siamese | Thailand | Medium | Active |"
     `);
+    expect(
+      md.table({
+        align: "left",
+        columns: ["Breed", "Origin", "Size", "Temperament"],
+        rows: [
+          ["Abyssinian", "Egypt", "Medium", "Active"],
+          ["Aegean", "Greece", "Medium", "Active"],
+          ["American Bobtail", "United States", "Medium", "Active"],
+          ["Applehead Siamese", "Thailand", "Medium", "Active"],
+        ],
+      }),
+    ).toMatchInlineSnapshot(`
+      "| Breed | Origin | Size | Temperament |
+      | --- | --- | --- | --- |
+      | Abyssinian | Egypt | Medium | Active |
+      | Aegean | Greece | Medium | Active |
+      | American Bobtail | United States | Medium | Active |
+      | Applehead Siamese | Thailand | Medium | Active |"
+    `);
+    expect(
+      md.table({
+        align: "center",
+        columns: ["Breed", "Origin", "Size", "Temperament"],
+        rows: [
+          ["Abyssinian", "Egypt", "Medium", "Active"],
+          ["Aegean", "Greece", "Medium", "Active"],
+          ["American Bobtail", "United States", "Medium", "Active"],
+          ["Applehead Siamese", "Thailand", "Medium", "Active"],
+        ],
+      }),
+    ).toMatchInlineSnapshot(`
+      "| Breed | Origin | Size | Temperament |
+      | :-: | :-: | :-: | :-: |
+      | Abyssinian | Egypt | Medium | Active |
+      | Aegean | Greece | Medium | Active |
+      | American Bobtail | United States | Medium | Active |
+      | Applehead Siamese | Thailand | Medium | Active |"
+    `);
+    expect(
+      md.table({
+        align: "right",
+        columns: ["Breed", "Origin", "Size", "Temperament"],
+        rows: [
+          ["Abyssinian", "Egypt", "Medium", "Active"],
+          ["Aegean", "Greece", "Medium", "Active"],
+          ["American Bobtail", "United States", "Medium", "Active"],
+          ["Applehead Siamese", "Thailand", "Medium"],
+        ],
+      }),
+    ).toMatchInlineSnapshot(`
+      "| Breed | Origin | Size | Temperament |
+      | --: | --: | --: | --: |
+      | Abyssinian | Egypt | Medium | Active |
+      | Aegean | Greece | Medium | Active |
+      | American Bobtail | United States | Medium | Active |
+      | Applehead Siamese | Thailand | Medium |"
+    `);
   });
 });