Tcl Source Code: View Ticket

Ticket UUID:	2c0f49e26c27847ace39b90258beedea3e79eead
Title:	Tcl 9 clock format -locale does not look up locale children if parent locale used first
Type:	Bug	Created on:	2025-03-04 08:07:15
Submitter:	apnadkarni	Assigned to:	nobody
Subsystem:	16. Commands A-H	Severity:	Important
Priority:	5 Medium	Last modified:	2025-03-04 15:57:30
Status:	Closed	Closed by:	sebres
Resolution:	Fixed	Closed on:	2025-03-04 15:57:30
Version:	8.7+

Description:
Running the following script in Tcl 8.6 and Tcl 9 gives different results, Tcl 8.6 seems correct behavior. `package require msgcat namespace eval ::tcl::clock { ::msgcat::mcset fr_xx DATE_FORMAT "%e\|%B\|%Y" } puts [package require Tcl] puts [clock format 0 -format %x -locale fr] puts [clock format 0 -format %x -locale fr_xx]` Output from Tcl 8.6: `8.6.16 1 janvier 1970 1\|janvier\|1970 <- Note pipe separator` Output from 9.0.1: `9.0.1 1 janvier 1970 1 janvier 1970 <- fr_xx format seemingly ignored` If the line for the `fr` locale is commented, Tcl 9 correctly prints the `fr_xx` format.
User Comments:
sebres added on 2025-03-04 15:04:38: Good catch, Ashok! The reason for that is that new clock-engine caching the msgcat dictionary internally in merged catalog (from parent to child locale), but more important here is that "%x" is so called "localized" format (since it expanding in `::tcl::clock::LocalizeFormat`) and its result becomes also cached in merged catalog with keys `FMT_*` (here by `FMT_%x`), but (because it is not overwritten), the value remains as the value from parent catalog (after merge in `::tcl::clock::mcMerge`). The fix is simple, so I'll fix it now (and cover by a test). sebres added on 2025-03-04 15:57:30: Fixed in [dc5c5857c146c665] and merged to all derived branches.