Tcl Built-In Commands lreplace(1T)
NAME
lreplace - Replace elements in a list with new elements
SYNOPSIS
lreplace list first last ?element element ...?
DESCRIPTION
lreplace returns a new list formed by replacing one or more
elements of list with the element 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 ele-
ments between first and last are simply deleted. If list is
empty, any element arguments are added to the end of the
list.
EXAMPLES
Replacing an element of a list with another:
% lreplace {a b c d e} 1 1 foo
a foo c d e
Replacing two elements of a list with three:
% lreplace {a b c d e} 1 2 three more elements
a three more elements d e
Deleting the last element from a list in a variable:
% set var {a b c d e}
a b c d e
% set var [lreplace $var end end]
a b c d
Tcl Last change: 7.4 1
Tcl Built-In Commands lreplace(1T)
SEE ALSO
list(1T), lappend(1T), lindex(1T), linsert(1T), llength(1T),
lsearch(1T), lset(1T), lrange(1T), lsort(1T)
KEYWORDS
element, list, replace
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWTcl
Interface Stability Uncommitted
NOTES
Source for Tcl is available on http:/opensolaris.org.
Tcl Last change: 7.4 2
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