lsort tcl 7.0

Overview

Sort the elements of a list

Syntax

lsort ?switches? list

Description

This command sorts the elements of list, returning a new list in sorted order. By default ASCII sorting is used with the result returned in increasing order.

However, any of the following switches may be specified before list to control the sorting process (unique abbreviations are accepted):

-ascii

Use string comparison with ASCII collation order. This is the default.

-integer

Convert list elements to integers and use integer comparison.

-real

Convert list elements to floating-point values and use floating comparison.

-command command

Use command as a comparison command. To compare two elements, evaluate a Tcl script consisting of command with the two elements appended as additional arguments. The script should return an integer less than, equal to, or greater than zero if the first element is to be considered less than, equal to, or greater than the second, respectively.

-increasing

Sort the list in increasing order ("smallest" items first). This is the default.

-decreasing

Sort the list in decreasing order ("largest" items first).

Keywords

element, list, order, sort

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