[ruby-core:86496] [Ruby trunk Bug#14676] On Windows Readline's input is not correctly filled after autocomplete

Issue #14676 has been updated by graywolf (Gray Wolf).


Works when the string is actual prefix for the completion.

```
require 'readline'
Readline.completion_proc = Proc.new do |word|
  ['aafoo', 'aabar']
end
while buf = Readline.readline('> ')
  pp buf
end
```

produces

```
> aa<TAB>
aabar  aafoo
> aa<ENTER>
"aa"
```

However, it would still be nice to have it behave same way on linux and windows.

----------------------------------------
Bug #14676: On Windows Readline's input is not correctly filled after autocomplete
https://bugs.ruby-lang.org/issues/14676#change-71439

* Author: graywolf (Gray Wolf)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.5.1p57 (2018-03-29 revision 63029) [x64-mingw32]
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
When Readline.completion_proc returns more than one match, you are presented with empty line insted of what you have already put in.

```
require 'readline'
Readline.completion_proc = Proc.new do |word|
  ['foo', 'bar']
end
while buf = Readline.readline('> ')
  pp buf
end
```

You will end up with

```
> aa<TAB>
bar  foo
> <ENTER>
""
```

Works as expected on linux.



-- 
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