Re: How to test for the existance of an audio file

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Yes there is.  With "if -file xxx"  or "do -file xxx" in a loop, "case 
-file", etc.  There is a -file and -dir option for conditional tests. 
With Bayonne and ccscript2 these were installed as a separate dso with 
"use file", with bayonne2 they are built-ins.  Check server/runtime.cpp 
"addConditional" for full list....

Tony White wrote:
> Thanks David,
> 
> So there is no way, other than jumping into a TGI script, to test for
> an audio (or other) file's existance, so that a decision can be made
> if a file is not present?  Do you think it feasible that an external
> TGI script is run after every keypress as a caller makes choices?  Or
> is it better to run one TGI script at the start of the call, to
> populate an array with ALL possible files' presence or absence?  The
> files may run into the tens of thousands! so it would be a VERY big
> array - and would be at least four-dimensional.  And as the system is
> dynamic, files may appear, or disappear from one call to the next.
> 
> Tony
> 
> 2008/5/1 David Sugar <[email protected]>:
>> There is a "play.one" option, that plays the first file that is found, and
>> only one, out of a list.  There is a "play.any" I think, that plays any that
>> can be found and skips any not found in a list.  The default is to abort if
>> not found.
>>
>>
>>
>>  Tony White wrote:
>>
>>> Hi David and all,
>>>
>>> In bayonne script, if I list several files to play eg.
>>>
>>> play %1 %2 %3 ......
>>>
>>> ...where %1, %2, %3 etc. variables have been set to file1.au,
>>> file2.au, file3.au .....
>>>
>>> so long as all three files exist on disk, then all is well.  BUT if,
>>> for example, file1.au doesn't exist, then the play will abort -
>>> without playing the rest of the files.
>>>
>>> The files are dynamically generated outside the bayonne environment -
>>> and may sometimes be missing.  So I am stuck on how to test within a
>>> script that a file exists before attempting to play it - and indeed to
>>> substitute a 'default' file instead.
>>>
>>> The only way i can see is to jump out into a TGI - but is there
>>> already a way to test this?  And if not, maybe this would be a
>>> possible test to include in the next version?
>>>
>>> Oh - and before I get the suggestion:
>>> play %1
>>> play %2
>>> play %3
>>> ....
>>>
>>> yes, that works insofar as playing all  files, even if one is missing
>>> - but there is a 'step' delay between each 'play' statement - which I
>>> want to avoid... and there seems to be no way to see if a file is
>>> missing so as to be able to substitute a 'default' file instead.
>>>
>>> Thanks,
>>>
> 
> 
> 

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