feat/ Make Mapdl.input accepts strings

[germa89]

Current situation

Sometimes, it is interesting to input multiple strings of MAPDL commands.

A less experienced PyMAPDL user might feel tempted to use Mapdl.input after writing a file.

However, there is the Mapdl.run_multiline which is for that purpose but it is not very known.

Proposal

I would propose then, either:

• Create Mapdl.input_strings
• Make Mapdl.input accept cmd multiline strings (checking for example if there is \n in the string) and redirect it to Mapdl.run_multiline.

Given the complexity of Mapdl.input, I feel the first method is better.

[akaszynski]

Agree with the first approach. Should we simply rename run_multiline to input_strings?

[germa89]

mmhh... Although run_multiline is not used much in current implementation and docs, I would probably create input_strings (which maps to run_multiline) and show a deprecation warning in run_multiline for couple of releases.

It should not be a big deal to change the name though. But the above I think it is the recommended good practice.