diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | doc/Tcl.n | 19 |
2 files changed, 22 insertions, 3 deletions
@@ -1,3 +1,9 @@ +2009-05-03 Donal K. Fellows <dkf@users.sf.net> + + * doc/Tcl.n: [Bug 2538432]: Clarified exact treatment of ${arr(idx)} + form of variable substitution. This is not a change of behavior, just + an improved description of the current situation. + 2009-04-30 Miguel Sofer <msofer@users.sf.net> * generic/tclBasic.c (TclObjInvoke): Make sure that a null objProc @@ -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 1.20 2008/10/15 10:43:37 dkf Exp $ +'\" RCS: @(#) $Id: Tcl.n,v 1.21 2009/05/03 18:05:39 dkf Exp $ '\" .so man.macros .TH Tcl n "8.5" Tcl "Tcl Built-In Commands" @@ -121,8 +121,17 @@ substitutions are performed on the characters of \fIindex\fR. .TP 15 \fB${\fIname\fB}\fR . -\fIName\fR is the name of a scalar variable. It may contain any -characters whatsoever except for close braces. +\fIName\fR is the name of a scalar variable or array element. It may contain +any characters whatsoever except for close braces. It indicates an array +element if \fIname\fR is in the form +.QW \fIarrayName\fB(\fIindex\fB)\fR +where \fIarrayName\fR does not contain any open parenthesis characters, +.QW \fB(\fR , +or close brace characters, +.QW \fB}\fR , +and \fIindex\fR can be any sequence of characters except for close brace +characters. No further +substitutions are performed during the parsing of \fIname\fR. .PP There may be any number of variable substitutions in a single word. Variable substitution is not performed on words enclosed in braces. @@ -236,3 +245,7 @@ except for argument expansion as specified in rule [5]. For example, during variable substitution the entire value of the variable becomes part of a single word, even if the variable's value contains spaces. +'\" Local Variables: +'\" mode: nroff +'\" fill-column: 78 +'\" End: |