ISSUE-379: "us-ascii" should not be an alias for "windows-1252"

"us-ascii" should not be an alias for "windows-1252"

Raised by:
Addison Phillips
Opened on:

This issue tracks the bug listed above and was created as part of the WG LC process. The bug was created prior to the WG LC.

--- lists US-ASCII and equivalents (e.g., ASCII) as an alias for "windows-1252". This isn't correct, as Windows 1252 has several code points above 127 that are not ASCII characters. US-ASCII should be kept distinct from Windows 1252, just as it should be kept distinct from Latin-1 and all the other encodings that are extensions of US-ASCII.
Related Actions Items:
No related actions
Related emails:
  1. I18N-ISSUE-379 (BUG23646): "us-ascii" should not be an alias for "windows-1252" [encoding] (from on 2014-07-10)

Related notes:

These issues are now tracked at

Richard Ishida, 16 Sep 2015, 12:00:45

Display change log ATOM feed

Addison Phillips <>, Chair, Richard Ishida <>, Fuqiao Xue <>, Atsushi Shimono <>, Staff Contacts
Tracker: documentation, (configuration for this group), originally developed by Dean Jackson, is developed and maintained by the Systems Team <>.
$Id: index.php,v 1.326 2018/10/13 17:29:51 vivien Exp $