Cannot insert at the start of lines with visual block

[opeik]

After creating a visual block, pressing I doesn't seem to do anything. Pressing c on the other hand does work, but consumes the first character as you'd expect.

Steps to reproduce:

• Create a visual block selection (Control-Q) containing only the first character of every line
• Press I to enter insert mode

Expected behaviour:

• You enter insert mode at the start of every line

Actual behaviour:

• Nothing happens

[Apostolique]

The same issue happens with regular visual mode. I and A.

[mtippett]

I've looked into it a bit under LiveDebug (https://www.twitch.tv/bastiondebugging).

It looks like libvim isn't handling the block mode correctly. I'll be updating the visual_mode tests to demonstrate for comparison. Observations are (using unit test hacks)...

Starting file is

line1
line2
line3
line4
line5

The test_insert_block_mode is modified to comment out the viminput("") and ("j") (ie: just doing a straight insert). Output is

LINE: abcline1
LINE: line2
LINE: line3

When the visual mode is used, with "I", it will produce

LINE: line1
LINE: line2
LINE: line3

expected

LINE: abcline1
LINE: abcline2
LINE: abcline3

When visual mode is used with "c", it will product

LINE: abcine1
LINE: ine2
LINE: ine3

Expected

LINE: abcine1
LINE: abcine2
LINE: abcine3

I'll construct a pull request for these tests in the next debug run.

[77abe77]

Any update on this issue? I am still experiencing this on latest build c771129

[HealsCodes]

Also still in 4aa0458 but since it's probably a libvim issue it might be better situated in that repo.

Possibly related to these two TODOs libvim/src/normal.c#L1546, libvim/src/normal.c#L1553 - as far as I can climb through the flow of visual block handling those are the difference to regular vim.