Closed
Description
The CLI around formats and extensions behaves in some unexpected ways.
Passing an unknown format or extension to -f or -t should make the command fail immediately instead of reading from stdin first (only to inevitably fail):
$ pandoc -f unknown_format
why do you let me write here?
^D
Unknown input format unknown_format
$ pandoc -t unknown_format
why do you let me write here?
^D
Unknown output format unknown_format
Running --list-extensions with a format that does not exist should return an error:
$ pandoc --list-extensions=unknown_format
-east_asian_line_breaks
Specifying an extension that doesn't exist for a format that doesn't exist should probably report an unknown format error (but currently reports an unknown extension error):
$ echo | pandoc -f a+b
Error parsing reader format "a+b": (line 1, column 4):
unexpected end of input
Unknown extension: b
$ echo | pandoc -t a+b
Error parsing writer format "a+b": (line 1, column 4):
unexpected end of input
Unknown extension: b
Pandoc version?
pandoc 2.16.2 on Linux