Allow giving the filename with extension in play commands (#237)

Since commit 8e49687 ("Allow referencing audio files with filenames
outside [a-zA-Z0-9_] (#236)"), all filenames could be given to the play
command, however the user had to cut off the file extension manually.
First search for the full filename, before trying with the standard
extension.

To allow basic filenames without quoting, "." is now also allowed in
identifiers for the play command.

Idea and code suggestion by Joachim Breitner.

Co-authored-by: Thomas Bleher <[email protected]>

Author: tbleher

Changelog.md

@@ -3,7 +3,8 @@
 ## 1.10 (UNRELEASED)
 
  * Audio filenames can now be quoted, to support filenames with characters
-   outside the range `a-zA-Z0-9_`
+   outside the range `a-zA-Z0-9_`. Audio files can also be given including
+   their extension.
  * Support for the `stop` and `restart` codes (generated by default)
  * The `set-language` command truncates long language names (like `ITALIAN`)
    automatically.

src/TipToiYaml.hs

@@ -843,11 +843,9 @@ ttYaml2tt no_date dir (TipToiYAML {..}) extCodes = do
         Just (lang, txt) -> do
             Right <$> readFile' (ttsFileName lang txt)
         Nothing -> do
-            let paths = [ combine dir relpath
-                    | ext <- map snd fileMagics
-                    , let pat = fromMaybe "%s" ttyMedia_Path
-                    , let relpath = printf pat fn <.> ext
-                    ]
+            let pat = fromMaybe "%s" ttyMedia_Path
+            let basePath = printf pat fn
+            let paths = map (combine dir) (basePath : [basePath <.> ext | (_,ext) <- fileMagics ])
             ex <- filterM doesFileExist paths
             case ex of
                 [] -> do
@@ -955,7 +953,7 @@ parsePlayList :: Parser [String]
 parsePlayList = P.commaSep lexer $ parseAudioRef
 
 parseAudioRef :: Parser String
-parseAudioRef = (P.lexeme lexer $ many1 (alphaNum <|> char '_')) <|> P.stringLiteral lexer
+parseAudioRef = (P.lexeme lexer $ many1 (alphaNum <|> char '_' <|> char '.')) <|> P.stringLiteral lexer
 
 parseScriptRef :: Parser String
 parseScriptRef = P.lexeme lexer $ many1 (alphaNum <|> char '_')