From 7d89a661bf819c5fca291b7e76daafbe8496e85c Mon Sep 17 00:00:00 2001
From: Hossein Mohammadi <hosseinm.developer@gmail.com>
Date: Fri, 12 Feb 2021 20:09:07 +0330
Subject: [PATCH] fix(description): empty lines

issue: https://github.com/hosseinmd/prettier-plugin-jsdoc/issues/75
---
 src/descriptionFormatter.ts                |  8 ++++----
 tests/__snapshots__/paragraph.test.js.snap | 13 ++++++++++++-
 tests/paragraph.test.js                    | 21 +++++++++++++++++++++
 3 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/src/descriptionFormatter.ts b/src/descriptionFormatter.ts
index 586531f..22ed60a 100644
--- a/src/descriptionFormatter.ts
+++ b/src/descriptionFormatter.ts
@@ -93,17 +93,17 @@ function formatDescription(
   }
 
   text = text.replace(
-    /(\n(\s+|)(---(\s|-)+)\n)/g, // `------- --- --- -` | `----`
+    /(\n(\s+)?(---(\s|-)+)\n)/g, // `------- --- --- -` | `----`
     NEW_DASH_LINE,
   );
 
   text = text.replace(
-    /(\n(\s+|)\n\s\s\s+)/g,
+    /(\n([^\S\r\n]+)?\n[^\S\r\n]{2}[^\S\r\n]+)/g,
     NEW_PARAGRAPH_START_THREE_SPACE_SIGNATURE,
   ); // Add a signature for new paragraph start with three space
 
   text = text.replace(
-    /(\n\n+(\s+|)-(\s+|))/g, // `\n\n - ` | `\n\n-` | `\n\n -` | `\n\n- `
+    /(\n\n+(\s+)?-(\s+)?)/g, // `\n\n - ` | `\n\n-` | `\n\n -` | `\n\n- `
     NEW_PARAGRAPH_START_WITH_DASH,
   );
 
@@ -112,7 +112,7 @@ function formatDescription(
     NEW_LINE_START_WITH_DASH,
   );
 
-  text = text.replace(/(\n\n)|(\n\s+\n)/g, EMPTY_LINE_SIGNATURE); // Add a signature for empty line and use that later
+  text = text.replace(/(\n(\s+)?\n+)/g, EMPTY_LINE_SIGNATURE); // Add a signature for empty line and use that later
   // text = text.replace(/\n\s\s\s+/g, NEW_LINE_START_THREE_SPACE_SIGNATURE); // Add a signature for new line start with three space
 
   text = capitalizer(text);
diff --git a/tests/__snapshots__/paragraph.test.js.snap b/tests/__snapshots__/paragraph.test.js.snap
index e5acd76..d50dc1a 100644
--- a/tests/__snapshots__/paragraph.test.js.snap
+++ b/tests/__snapshots__/paragraph.test.js.snap
@@ -278,7 +278,7 @@ exports[`description new line with dash 3`] = `
  *     -------------------------------------
  * {expected token stream}
  *
- * or of three parts:
+ * Or of three parts:
  *
  *     {source code}
  *     -------------------------------------
@@ -301,6 +301,17 @@ exports[`description start underscores 1`] = `
 "
 `;
 
+exports[`empty lines 1`] = `
+"/**
+ * Foo
+ *
+ * Bar
+ *
+ * @param a Baz
+ */
+"
+`;
+
 exports[`numbers and code in description 1`] = `
 "/**
  * =========================== PressResponder Tutorial ===========================
diff --git a/tests/paragraph.test.js b/tests/paragraph.test.js
index 37bf463..7c77abf 100644
--- a/tests/paragraph.test.js
+++ b/tests/paragraph.test.js
@@ -423,6 +423,27 @@ test("`#` in text", () => {
   expect(result1).toMatchSnapshot();
 });
 
+test("empty lines", () => {
+  const result1 = subject(
+    `/**
+* Foo
+*
+*
+*
+*
+*
+* Bar
+*
+*
+*
+*
+* @param a Baz
+*/`,
+  );
+
+  expect(result1).toMatchSnapshot();
+});
+
 /**
  * If this is a vertical ScrollView scrolls to the bottom.
  * If this is a horizontal ScrollView scrolls to the right.