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martanne / vis

A vi-like editor based on Plan 9's structural regular expressions
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Enter a command using ":", but backspace out error #596

Closed ddkn closed 7 years ago

ddkn commented 7 years ago

I have come across a bug, or user idiosyncrasy when trying to enter a command. In command mode, I would usually type a command as such: :x/myitem however, sometimes I may change my mind on a command. One example is I want to search a document in typical vi fashion such as /myitem So I start the command such as :x/myitem, but then backspace it to /myitem. When hitting enter I run into the error /myitem Newline expected I would expect the parser to be able to handle this change command with no issue. Instead the workaround is to hit Esc twice, fairly slowly (with a delay of about 0.5 seconds) or it inserts \<M-Escape> (which is possibly another user idiosyncrasy?).

The delay issue is noticeable in a few places, when trying to move around quickly, but this is an unrelated concern to this question.

Unrelated note: When I saw the demo video for structural regex in vis, wow! Really cool, and so far really digging this editor!

Using commit 546917d

martanne commented 7 years ago

The prompt issue is related to #577. The problem is that there are two different prompts used for searching (/ and ?) and commands (:). As a short term workaround you can use the sam address :/myitem (notice the starting colon). This is not exactly the same as searching because it will create a new selection.

In general (multiline) command entry should be improved. However, it isn't that easy. For example the following is a valid insertion command which can't really be specified right now:

:i
Begin
:more text:
End
.

See the FAQ entry for the Escape delay issue.

ddkn commented 7 years ago

Ah, makes sense. I will close this due to being similar to #577. Thanks for the response.