NotebookImport fails for code split over multiple lines

Question

Bug introduced in 10.4 or earlier and fixed in 11.2

I've found that NotebookImport[file,"Input" -> "HeldInterpretedCell"] doesn't seem to cope when the closing bracket of a command is on the following line of an input cell.

So if I save a notebook test.nb with the following input cell (as one cell):

Plot[x, {x, 0, 1}
 ]

Then NotebookImport["test.nb","Input" -> "HeldInterpretedCell"] gives a Failure[] box instead of the expected HoldComplete[Plot[x,{x,0,1}]].

With multiple different cells with different permutations:

Plot[x, {x, 0, 1}
 ]

Plot[x, {x, 0, 1}]

Plot[x,
 {x, 0, 1}]

Plot[
 x,
 {x, 0, 1}]

the first and last will fail, but the middle two are fine. It looks like it is related to the square brackets of the outmost command being the end/start of a line.

Is this a bug?

I'd say so, meanwhile you can probably use ideas from: Reading Cells or Boxes expression by expression — Kuba, May 19 '17 at 12:47
I asked the question based on the answers in https://mathematica.stackexchange.com/questions/146167 sometimes giving errors, and traced it back to this. I can probably hack the part out of the Failure[] box that I need. — SPPearce, May 19 '17 at 13:30
Not only "HeldInterpretedCell" but also "InterpretedCell" fails miserably. I think it is a bug, definitely worth reporting. — Alexey Popkov, May 19 '17 at 14:30
With versions 11.0.1 and 10.4.1 I get the same failure for "HeldInterpretedCell" and "InterpretedCell" as with version 11.1.1. — Alexey Popkov, May 19 '17 at 14:34
Wolfram emailed me to let me know this has been fixed in v11.2, which I've confirmed. — SPPearce, Nov 14 '17 at 16:07

score 1 · Accepted Answer · answered Nov 14 '17 at 19:46

1

Wolfram Support emailed me to let me know that this has been fixed in v11.2, which I've confirmed.

answered Nov 14 '17 at 19:46

SPPearce

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NotebookImport fails for code split over multiple lines

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