This is an old-school Unix terminal way of mimicking the use of ‘fancy quoting’ by using the backtick (`) and single quote (') because on some terminals they were shaped the same as ‘ and ’. Changing this would break many error parsers that are used to Ruby doing it this way.

-a

On Thu, Jan 9, 2020 at 4:54 PM <kolano@gmail.com> wrote:

Issue #16495 has been reported by Kolano (Kenneth Kolano).

----------------------------------------
Bug #16495: Inconsistant Quotes in Error Messages
https://bugs.ruby-lang.org/issues/16495

* Author: Kolano (Kenneth Kolano)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* ruby -v: 2.5.3
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
Error messages use inconsistent pairs of quotes, for instance...

```
-e:1:in `<main>': undefined local variable or method `foo' for main:Object (NameError)
```
...where a "fancy" quote is used on the left-hand side, and a standard single quote is used on the right.

The same quotes should be used on either side of elements being quoted.

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