Re: Tcl9: source files are interpreted as utf-8 by default

Am 10.01.2025 um 13:09 schrieb Uwe Schmitz:

Another thing that hurts me and is off-topic here (sorry):
The changed variable name resolution also affects itcl::class
defintions. The following leads to an error:
 ::itcl::class A {
    public common tclVersion $tcl_version
}
 Because the ::itcl::class commands open a namespace, the resolution
of the global variable tcl_version doesn't succeed. You
have to use the complete path $::tcl_version.

Yes, that is intentional and important. And Ashoks migration tolls also catch this.
The issue in TCL 8.6 is:
namespace eval test { set test A }
Works as follows:
- if test exists in the global namespace, the global is set.
- if test does not exist in the global namespace, a namespace variable "test" is created.
This feature had the consequence, that namespace variables sometimes overwrote global variables, but were intended as namespace variables.
In TCL 9, this will always address a namespace variable.
Take care,
Harald