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author | William Joye <wjoye@cfa.harvard.edu> | 2016-12-21 22:13:18 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2016-12-21 22:13:18 (GMT) |
commit | 07e464099b99459d0a37757771791598ef3395d9 (patch) | |
tree | 4ba7d8aad13735e52f59bdce7ca5ba3151ebd7e3 /tcl8.6/doc/unset.n | |
parent | deb3650e37f26f651f280e480c4df3d7dde87bae (diff) | |
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new subtree for tcl/tk
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-rw-r--r-- | tcl8.6/doc/unset.n | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/tcl8.6/doc/unset.n b/tcl8.6/doc/unset.n deleted file mode 100644 index 2cfc63e..0000000 --- a/tcl8.6/doc/unset.n +++ /dev/null @@ -1,68 +0,0 @@ -'\" -'\" Copyright (c) 1993 The Regents of the University of California. -'\" Copyright (c) 1994-1996 Sun Microsystems, Inc. -'\" Copyright (c) 2000 Ajuba Solutions. -'\" -'\" See the file "license.terms" for information on usage and redistribution -'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. -'\" -.TH unset n 8.4 Tcl "Tcl Built-In Commands" -.so man.macros -.BS -'\" Note: do not modify the .SH NAME line immediately below! -.SH NAME -unset \- Delete variables -.SH SYNOPSIS -\fBunset \fR?\fB\-nocomplain\fR? ?\fB\-\-\fR? ?\fIname name name ...\fR? -.BE -.SH DESCRIPTION -.PP -This command removes one or more variables. -Each \fIname\fR is a variable name, specified in any of the -ways acceptable to the \fBset\fR command. -If a \fIname\fR refers to an element of an array then that -element is removed without affecting the rest of the array. -If a \fIname\fR consists of an array name with no parenthesized -index, then the entire array is deleted. -The \fBunset\fR command returns an empty string as result. -If \fB\-nocomplain\fR is specified as the first argument, any possible -errors are suppressed. The option may not be abbreviated, in order to -disambiguate it from possible variable names. The option \fB\-\-\fR -indicates the end of the options, and should be used if you wish to -remove a variable with the same name as any of the options. -If an error occurs during variable deletion, any variables after the named one -causing the error are not -deleted. An error can occur when the named variable does not exist, or the -name refers to an array element but the variable is a scalar, or the name -refers to a variable in a non-existent namespace. -.SH EXAMPLE -.PP -Create an array containing a mapping from some numbers to their -squares and remove the array elements for non-prime numbers: -.PP -.CS -array set squares { - 1 1 6 36 - 2 4 7 49 - 3 9 8 64 - 4 16 9 81 - 5 25 10 100 -} - -puts "The squares are:" -parray squares - -\fBunset\fR squares(1) squares(4) squares(6) -\fBunset\fR squares(8) squares(9) squares(10) - -puts "The prime squares are:" -parray squares -.CE -.SH "SEE ALSO" -set(n), trace(n), upvar(n) -.SH KEYWORDS -remove, variable -'\" Local Variables: -'\" mode: nroff -'\" fill-column: 78 -'\" End: |