From e4a392c1c3089e0ec77601d99cd19be4403bb3a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Smr=C5=BE?= <roman.smrz@seznam.cz>
Date: Sat, 2 Aug 2025 17:08:59 +0200
Subject: Shell: list all shell special characters for parser

---
 src/Parser/Shell.hs | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

(limited to 'src')

diff --git a/src/Parser/Shell.hs b/src/Parser/Shell.hs
index 37b4e79..7720ee9 100644
--- a/src/Parser/Shell.hs
+++ b/src/Parser/Shell.hs
@@ -29,7 +29,9 @@ parseArgument = lexeme $ fmap (App AnnNone (Pure T.concat) <$> foldr (liftA2 (:)
     , unquotedString
     ]
   where
-    specialChars = [ '\"', '\\', '$' ]
+    specialChars = [ '"', '\'', '\\', '$', '#', '|', '>', '<', ';', '[', ']', '{', '}', '(', ')', '*', '?', '~', '&', '!' ]
+
+    stringSpecialChars = [ '"', '\\', '$' ]
 
     unquotedString :: TestParser (Expr Text)
     unquotedString = do
@@ -40,7 +42,7 @@ parseArgument = lexeme $ fmap (App AnnNone (Pure T.concat) <$> foldr (liftA2 (:)
         void $ char '"'
         let inner = choice
                 [ char '"' >> return []
-                , (:) <$> (Pure . TL.toStrict <$> takeWhile1P Nothing (`notElem` specialChars)) <*> inner
+                , (:) <$> (Pure . TL.toStrict <$> takeWhile1P Nothing (`notElem` stringSpecialChars)) <*> inner
                 , (:) <$> stringEscapedChar <*> inner
                 , (:) <$> stringExpansion <*> inner
                 ]
@@ -53,11 +55,9 @@ parseArgument = lexeme $ fmap (App AnnNone (Pure T.concat) <$> foldr (liftA2 (:)
     stringEscapedChar :: TestParser (Expr Text)
     stringEscapedChar = do
         void $ char '\\'
-        Pure <$> choice
-            [ char '\\' >> return "\\"
-            , char '"' >> return "\""
-            , char '$' >> return "$"
-            , char 'n' >> return "\n"
+        fmap Pure $ choice $
+            map (\c -> char c >> return (T.singleton c)) stringSpecialChars ++
+            [ char 'n' >> return "\n"
             , char 'r' >> return "\r"
             , char 't' >> return "\t"
             , return "\\"
@@ -66,11 +66,9 @@ parseArgument = lexeme $ fmap (App AnnNone (Pure T.concat) <$> foldr (liftA2 (:)
     standaloneEscapedChar :: TestParser (Expr Text)
     standaloneEscapedChar = do
         void $ char '\\'
-        Pure <$> choice
-            [ char '\\' >> return "\\"
-            , char '"' >> return "\""
-            , char '$' >> return "$"
-            , char ' ' >> return " "
+        fmap Pure $ choice $
+            map (\c -> char c >> return (T.singleton c)) specialChars ++
+            [ char ' ' >> return " "
             ]
 
 parseArguments :: TestParser (Expr [ Text ])
-- 
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