lreplace(n) Tcl Built-In Commands lreplace(n)
lreplace - Replace elements in a list with new elements
lreplace list first last ?element element ...?
lreplace returns a new list formed by replacing one or more elements of list with the ele-
ment arguments. first and last specify the first and last index of the range of elements
to replace. 0 refers to the first element of the list, and end (or any abbreviation of
it) may be used to refer to the last element of the list. If list is empty, then first
and last are ignored.
If first is less than zero, it is considered to refer to the first element of the list.
For non-empty lists, the element indicated by first must exist.
If last is less than zero but greater than first, then any specified elements will be
prepended to the list. If last is less than first then no elements are deleted; the new
elements are simply inserted before first.
The element arguments specify zero or more new arguments to be added to the list in place
of those that were deleted. Each element argument will become a separate element of the
list. If no element arguments are specified, then the elements between first and last are
simply deleted. If list is empty, any element arguments are added to the end of the list.
lappend(n), lindex(n), linsert(n), list(n), llength(n), lrange(n), lsearch(n), lsort(n)
element, list, replace
Tcl 7.4 lreplace(n)