1lrange(n) Tcl Built-In Commands lrange(n)
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8 lrange - Return one or more adjacent elements from a list
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11 lrange list first last
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16 List must be a valid Tcl list. This command will return a new list
17 consisting of elements first through last, inclusive. The index values │
18 first and last are interpreted the same as index values for the command │
19 string index, supporting simple index arithmetic and indices relative │
20 to the end of the list. If first is less than zero, it is treated as
21 if it were zero. If last is greater than or equal to the number of
22 elements in the list, then it is treated as if it were end. If first
23 is greater than last then an empty string is returned. Note: “lrange
24 list first first” does not always produce the same result as “lindex
25 list first” (although it often does for simple fields that are not
26 enclosed in braces); it does, however, produce exactly the same results
27 as “list [lindex list first]”
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30 Selecting the first two elements:
31 % lrange {a b c d e} 0 1
32 a b
33 Selecting the last three elements:
35 % lrange {a b c d e} end-2 end
36 c d e
37 Selecting everything except the first and last element:
39 % lrange {a b c d e} 1 end-1
40 b c d
41 Selecting a single element with lrange is not the same as doing so with
43 lindex:
44 % set var {some {elements to} select}
45 some {elements to} select
46 % lindex $var 1
47 elements to
48 % lrange $var 1 1
49 {elements to}
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53 list(n), lappend(n), lindex(n), linsert(n), llength(n), lsearch(n),
54 lset(n), lreplace(n), lsort(n), string(n) │
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58 element, list, range, sublist
59Tcl 7.4 lrange(n)