Improper parsing of command when using `M-/` for completion.

[bryce-carson]

As per the title, this is the parsing issue I encounter occasionally when I use ess expansions:

> filenamesAndParameters$outputIndFitnessFilename
outputIndFitnessFilename
Error: object 'outputIndFitnessFilename' not found

[lionel-]

I don't see these symbols in the ESS code base so I'm guessing they come from a script you've opened?

Can you post a full reprex please?

[bryce-carson]

Yes, they're objects and columns within an R script I'm working on.

It's an issue that occurs during interactive use, sporadically, so a reprex as I know it wouldn't be helpful, but I can post steps.

• Start an ESS process with R
• create an object, such as a dataframe:
  • testDF <- data.frame(apple = 1:3, banana = 4:6)
• type the object name, testDF at the prompt
• add $a, to produce testDF$a
• Press M-/ to expand the command line prompt to testDF$apple, and press Return

Occasionally, only the expanded part of the name is sent to the comint, apple in this case, which will produce an object not found error unless something with the same name actually exists.

[vspinu]

This is strange. I never experienced this and cannot reproduce. What is M-/ is bound to for you?

[bryce-carson]

It appears that M-/ is bound to hippie-expand. I can't reproduce the problem now either, so I'm closing this issue.