Re: invoking stdin: a use case?

[Dmytro O. Redchuk]

On Thu 17 Mar 2011, 12:19 Federico Bruni wrote:
> Hi LilyPonders,
Hi!

> in Usage 1.2:
> 
> "When invoked with a filename that has no extension, the ‘.ly’ extension
> is tried first. To read input from stdin, use a dash (-) for file."
> 
> I wonder what's the use of stdin.  Can you show a use case?
> 
> I'm translating the Usage manual so I want to be sure that I've
> understood it correctly. I guess that the dash **replaces** the file, so
> the command is:
> 
> lilypond -
cat test.ly | lilypond -o TEST -

for instance. You'll get "TEST.pdf" here.

Without "-o TEST" it produces "-.pdf" actually. Probably, i would like it do
make "stdin.pdf" really, by the way. Don't know whether it's better .)

> 
> BTW, I think that in the following sentence:
> 
> "When ‘filename.ly’ is processed it will produce ‘filename.ps’ and
> ‘filename.pdf’ as output."
> 
> ‘filename.ps’ should be removed (or at least you should say that .ps
> file will be converted to .pdf and then deleted), otherwise new users
> might wonder where the .ps file has gone.

-- 
  Dmytro O. Redchuk
  Bug Squad