From e76a9ec8aa005b6694fa56f8146a2afc26ca84d5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?marcin=20miko=C5=82ajczak?= <git@mkljczk.pl>
Date: Tue, 18 Apr 2023 23:50:26 +0200
Subject: [PATCH] wip
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Signed-off-by: marcin mikołajczak <git@mkljczk.pl>
---
 .../compose/editor/transformers/index.ts      | 24 ++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/app/soapbox/features/compose/editor/transformers/index.ts b/app/soapbox/features/compose/editor/transformers/index.ts
index bc8dbee16..5266daadc 100644
--- a/app/soapbox/features/compose/editor/transformers/index.ts
+++ b/app/soapbox/features/compose/editor/transformers/index.ts
@@ -57,6 +57,28 @@ export const UNESCAPE_ITALIC_UNDERSCORE: TextMatchTransformer = {
   type: 'text-match',
 };
 
+const UNESCAPE_ITALIC_STAR_IMPORT_REGEX =
+  /([\*])(?<!(?:\1|\w).)(?![_*\s])(.*?[^_*\s])(?=\1)([\*])(?!\w|\3)/;
+const UNESCAPE_ITALIC_STAR_REGEX =
+  /([\*])(?<!(?:\1|\w).)(?![_*\s])(.*?[^_*\s])(?=\1)([\*])(?!\w|\3)/;
+
+export const UNESCAPE_ITALIC_STAR: TextMatchTransformer = {
+  dependencies: [],
+  export: () => null,
+  importRegExp: UNESCAPE_ITALIC_STAR_IMPORT_REGEX,
+  regExp: UNESCAPE_ITALIC_STAR_REGEX,
+  replace: (textNode, _) => {
+    const notEscapedStarRegex = /(?<![\\]{1})[\*]{1}/g;
+    const textContent = replaceUnescapedChars(textNode.getTextContent(), [
+      notEscapedStarRegex,
+    ]);
+    textNode.setTextContent(replaceEscapedChars(textContent));
+    textNode.setFormat('italic');
+  },
+  trigger: '*',
+  type: 'text-match',
+};
+
 const UNESCAPE_BACKSLASH_IMPORT_REGEX = /(\\(?:\\\\)?).*?\1*[\~\*\_\{\}\[\]\(\)\#\+\-\.\!]/;
 const UNESCAPE_BACKSLASH_REGEX = /(\\(?:\\\\)?).*?\1*[\~\*\_\{\}\[\]\(\)\#\+\-\.\!]$/;
 
@@ -82,7 +104,7 @@ export const TO_WYSIWYG_TRANSFORMERS = [
   BOLD_UNDERSCORE,
   STRIKETHROUGH,
   UNESCAPE_ITALIC_UNDERSCORE,
-  // UNESCAPE_ITALIC_STAR,
+  UNESCAPE_ITALIC_STAR,
   INLINE_CODE,
   HEADING,
   QUOTE,