Adding 0 to be recognized as one of the escaped characters. (#2051)

* Adding 0 to be recognized as one of the escaped characters. * Simplifying unit test for string with null character. Co-authored-by: Dominik Skoda <[email protected]> Co-authored-by: DS185357 <[email protected]>
fsprojects · Feb 1, 2022 · dfaf07d · dfaf07d
1 parent 503a471
commit dfaf07d
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diff --git a/src/Fantomas.Tests/StringTests.fs b/src/Fantomas.Tests/StringTests.fs
@@ -339,3 +339,8 @@ let s =
     \"\"\"aaaa   
 bbb\"\"\"
 "
+
+[<Test>]
+let ``unicode null character should be recognized as a trivia item, 2050`` () =
+    formatSourceString false "let s = \"\\000\"" config
+    |> should equal "let s = \"\\000\"\n"
diff --git a/src/Fantomas/TokenParser.fs b/src/Fantomas/TokenParser.fs
@@ -522,7 +522,7 @@ let private (|InterpStringEndOrPartToken|_|) token =
         None
 
 let escapedCharacterRegex =
-    System.Text.RegularExpressions.Regex("(\\\\(a|b|f|n|r|t|u|v|x|'|\\\"|\\\\))+")
+    System.Text.RegularExpressions.Regex("(\\\\(a|b|f|n|r|t|u|v|x|0|'|\\\"|\\\\))+")
 
 let private (|MultipleStringTextTokens|_|) tokens =
     let f _ =