invalid command name "text"
    while executing
"text .t -bg black -fg white \
	-height 10 -width 55 \
	-state normal \
	-undo 1 -autoseparators 0"
    (in namespace eval "::request" script line 12)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
#!/usr/local/bin/wish

proc Remove {} {
    .t delete 2.19 2.30
    .t edit separator
}

proc Add {} {
    .t edit undo
}

text .t -bg black -fg white \
	-height 10 -width 55 \
	-state normal \
	-undo 1 -autoseparators 0
pack .t

.t insert end "Here is a test.\n"
.t insert end "And this is a line with a blue tagged region inside\n"
.t insert end "that explicit the undo behaviour with tags"
.t tag configure tblue -background cyan
.t tag add tblue 2.19 2.30
.t edit separator

button .brm -text "1. Remove " -bg green -command [list Remove]
button .bad -text "2.  Add back" -bg green -command [list Add]

pack .brm .bad -side left