diff options
Diffstat (limited to 'doc/Tcl.n')
| -rw-r--r-- | doc/Tcl.n | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -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: Tcl.n,v 1.3 1999/04/16 00:46:33 stanton Exp $ +'\" RCS: @(#) $Id: Tcl.n,v 1.4 2002/06/03 16:31:24 msofer Exp $ '\" .so man.macros .TH Tcl n "8.1" Tcl "Tcl Built-In Commands" @@ -82,13 +82,14 @@ Variable substitution may take any of the following forms: .RS .TP 15 \fB$\fIname\fR -\fIName\fR is the name of a scalar variable; the name is terminated -by any character that isn't a letter, digit, or underscore. +\fIName\fR is the name of a scalar variable; the name is a sequence +of one or more characters that are a letter, digit, or underscore. .TP 15 \fB$\fIname\fB(\fIindex\fB)\fR \fIName\fR gives the name of an array variable and \fIindex\fR gives the name of an element within that array. -\fIName\fR must contain only letters, digits, and underscores. +\fIName\fR must contain only letters, digits, and underscores, +but may be an empty string. Command substitutions, variable substitutions, and backslash substitutions are performed on the characters of \fIindex\fR. .TP 15 |