MaplePrimes - answers and comments on Question, How read from standard input in pipe?

reading source files into the GUI

Alejandro Jakubi — Sun, 03 Jul 2011 08:07:45 Z

You may see this thread for options about reading source files into the GUI. And you may see here about reading source files into the CLI.

pointer to example

Joe Riel — Sun, 03 Jul 2011 19:32:20 Z

It is possible to get this to work, see these examples, (none precisely address your question, but the large example I gave uses readline to pipe stuff through maple) however, this generally is not the easy way to go and I do not see any compelling reason here for doing so. Using readline and shell passing in maple, at least for me, has always been tricky.

reply to Joe

Gary Palmer — Sun, 03 Jul 2011 22:42:38 Z

Thanks. As you suggest, it looks involved, but there are things in the thread and your script that I can use. I think I will abandon the general idea of putting maple in the pipeline and use hard files for data transfers to and from maple.

Mac w OS X, 10.4.6, 3.06 GHz Intel Duo with 4GB RAM, Maple14 Student

Reply to Alejandro

Gary Palmer — Sun, 03 Jul 2011 18:28:46 Z

I followed the links. It's true that I could accomplish the reorganization by reading and writing files to disk, and I am doing some of that, both with libraries of procedures and with data from Exel files, but the question is,

How does one write the input and output procedures in maple programs so they function in pipes with other scripting languages such as ruby? The sample script pipemaple.sh should read one line from the output of ls.

A secondary question is, why is the syntax of my sample script, receive.mpl, breaking? if I run the "receive.mpl" script from within BBEdit, it does not show a syntax error (but it doesn't get STDIN, either), but it breaks in the Terminal (console).

Mac w OS X, 10.4.6, 3.06 GHz Intel Duo with 4GB RAM, Maple14 Student