On Nov 2, 2018, at 19:40, Helmut K. C. Tessarek wrote: > Or at least a reference to what `subst -nobackslashes -nocommands` does > and how to use it to build useful regexes. ;-) That's in the Tcl documentation: https://www.tcl.tk/man/tcl8.5/TclCmd/subst.htm