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Diffstat (limited to 'doc/lassign.n')
| -rw-r--r-- | doc/lassign.n | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/doc/lassign.n b/doc/lassign.n index 4d1c3c8..b01f308 100644 --- a/doc/lassign.n +++ b/doc/lassign.n @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: lassign.n,v 1.2 2007/10/25 09:31:52 dkf Exp $ +'\" RCS: @(#) $Id: lassign.n,v 1.3 2007/10/26 20:11:53 dgp Exp $ '\" .so man.macros .TH lassign n 8.5 Tcl "Tcl Built-In Commands" @@ -16,6 +16,7 @@ lassign \- Assign list elements to variables .SH SYNOPSIS \fBlassign \fIlist varName \fR?\fIvarName ...\fR? .BE + .SH DESCRIPTION .PP This command treats the value \fIlist\fR as a list and assigns @@ -28,30 +29,27 @@ unassigned elements is returned. An illustration of how multiple assignment works, and what happens when there are either too few or too many elements. .CS -.ta 2.5i -lassign {a b c} x y z \fB\(->\fI Empty return\fR -puts $x \fB\(->\fI Prints "a"\fR -puts $y \fB\(->\fI Prints "b"\fR -puts $z \fB\(->\fI Prints "c"\fR +lassign {a b c} x y z ;# Empty return +puts $x ;# Prints "a" +puts $y ;# Prints "b" +puts $z ;# Prints "c" -lassign {d e} x y z \fB\(->\fI Empty return\fR -puts $x \fB\(->\fI Prints "d"\fR -puts $y \fB\(->\fI Prints "e"\fR -puts $z \fB\(->\fI Prints ""\fR +lassign {d e} x y z ;# Empty return +puts $x ;# Prints "d" +puts $y ;# Prints "e" +puts $z ;# Prints "" -lassign {f g h i} x y \fB\(->\fI Returns "h i"\fR -puts $x \fB\(->\fI Prints "f"\fR -puts $y \fB\(->\fI Prints "g"\fR +lassign {f g h i} x y ;# Returns "h i" +puts $x ;# Prints "f" +puts $y ;# Prints "g" .CE -.PP The \fBlassign\fR command has other uses. It can be used to create -the analogue of the -.QW shift -command in many shell languages like this: +the analogue of the "shift" command in many shell languages like this: .CS set ::argv [lassign $::argv argumentToReadOff] .CE .SH "SEE ALSO" lindex(n), list(n), lset(n), set(n) + .SH KEYWORDS assign, element, list, multiple, set, variable |