Re: [O] org babel support for tcl and awk

[Eric Schulte]

Eric Schulte <address@hidden> writes:

> Eric S Fraga <address@hidden> writes:
>
>> Eric Schulte <address@hidden> writes:
>>
>> [...]
>>
>>> As an example, I've worked up an very simple ob-awk.el file from
>>> ob-template.el, it is attached along with an example org-mode file which
>>> demonstrates its usage.
>>
>> Eric,
>>
>> this is great to see as I use awk quite often.  What is involved in
>> extending this to be able to run an awk script on input from within the
>> org file (output of another babel block, for instance, as my typical use
>> of awk is to re-arrange output from another program...)?  Or, if you
>> wish, can you suggest one of the ob-XXX modules that best illustrates
>> how to do this and I can give it a try?
>>
>
> I've made a quick change so that any variable named "stdin" is treated
> specially, in that, rather than using its value to replace strings of
> $stdin in the text of the awk code, the value of the stdin variable is
> saved into the file processed by awk.  This allows awk to operate over
> Org-mode references.
>
> See the attached example file.
>
> If babel code block supported a pipe or an actual stdin header argument,
> that would be the ideal way to add this behavior, but currently nothing
> of that nature exists.
>
> Please let me know if this misses part of your suggestion, or more
> generally what else may be advisable before we add this to the core.
>

I've now added ob-awk.el to the Org-mode core.  The newest version
incorporates some change inspired by recent work with Sebastien, notably
:stdin is now its own header argument, rather than a special variable
name.

Best -- Eric

-- 
Eric Schulte
http://cs.unm.edu/~eschulte/