fix(markdown): handle spaces inside bold markers

Author: gracefullight

packages/markdown/src/preprocess.test.ts

@@ -14,6 +14,20 @@ describe("preprocessMarkdown", () => {
     expect(preprocessMarkdown('**"text"**')).toBe('"**text**"');
   });
 
+  it("trims invalid spaces immediately inside bold markers", () => {
+    expect(
+      preprocessMarkdown(
+        "** 쇼핑몰 기본디자인 (base)**: 현재는 사용 중이지 않은 기본 디자인입니다.",
+      ),
+    ).toBe("**쇼핑몰 기본디자인 (base)**: 현재는 사용 중이지 않은 기본 디자인입니다.");
+  });
+
+  it("trims trailing spaces immediately before bold closing markers", () => {
+    expect(preprocessMarkdown("**쇼핑몰 기본디자인 (base) **입니다")).toBe(
+      "**쇼핑몰 기본디자인 (base)** 입니다",
+    );
+  });
+
   it("adds space between bold closing and Korean particle", () => {
     expect(preprocessMarkdown("**(text)**이며")).toBe("**(text)** 이며");
   });

packages/markdown/src/preprocess.ts

@@ -1,29 +1,37 @@
 /**
  * Preprocess markdown content to fix rendering issues with Korean text.
- * Version 0.1.1
+ * Version 0.1.3
  *
  * Handles:
- * 1. Bold markers wrapping quoted text: `**'text'**` → `'**text**'`
- * 2. Bold markers wrapping double-quoted text: `**"text"**` → `"**text**"`
- * 3. Bold closing `**` followed by Korean characters: `**text**에서` → `**text** 에서`
- * 4. Tilde escaping to prevent accidental strikethrough: `~` → `\~`
+ * 1. Trim invalid inner spaces around bold text: `** text **` → `**text**`
+ * 2. Bold markers wrapping quoted text: `**'text'**` → `'**text**'`
+ * 3. Bold markers wrapping double-quoted text: `**"text"**` → `"**text**"`
+ * 4. Bold closing `**` followed by Korean characters: `**text**에서` → `**text** 에서`
+ * 5. Tilde escaping to prevent accidental strikethrough: `~` → `\~`
  */
 export function preprocessMarkdown(content: string): string {
   if (!content) return "";
 
-  // 1. Move single quotes outside of bold markers
+  // 1. Trim invalid inner spaces around bold markers
+  // ** text ** -> **text**
+  let processed = content.replace(/\*\*([^*]+?)\*\*/g, (match, inner: string) => {
+    const trimmed = inner.trim();
+    return trimmed && trimmed !== inner ? `**${trimmed}**` : match;
+  });
+
+  // 2. Move single quotes outside of bold markers
   // **'text'** -> '**text**'
-  let processed = content.replace(/\*\*'(.+?)'\*\*/g, "'**$1**'");
+  processed = processed.replace(/\*\*'(.+?)'\*\*/g, "'**$1**'");
 
-  // 2. Move double quotes outside of bold markers
+  // 3. Move double quotes outside of bold markers
   // **"text"** -> "**text**"
   processed = processed.replace(/\*\*"([^"]+)"\*\*/g, '"**$1**"');
 
-  // 3. Handle cases where bold closing ** is followed by Korean character
+  // 4. Handle cases where bold closing ** is followed by Korean character
   // **text**에서 -> **text** 에서
   processed = processed.replace(/(\*\*[^*]+?\*\*)(?=[가-힣])/g, "$1 ");
 
-  // 4. Escape tildes to prevent accidental strikethrough
+  // 5. Escape tildes to prevent accidental strikethrough
   processed = processed.replace(/~/g, "\\~");
 
   return processed;