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Manipulating multiple variables simultaneously

2009-11-09T12:42:11-04:00

I suppose you could use upvar for this, but otherwize user's suggestion should do just well...

Statistics: Posted by nml375 — Mon Nov 09, 2009 12:42 pm

Manipulating multiple variables simultaneously

2009-11-09T10:28:32-04:00

Thanks!

Though I feel a bit of a fool not managing to work that one out myself.

Statistics: Posted by arfer — Mon Nov 09, 2009 10:28 am

use set

2009-11-09T09:59:08-04:00

Code:

set $var [string trim [set $var] ^]

Statistics: Posted by user — Mon Nov 09, 2009 9:59 am

Manipulating multiple variables simultaneously

2009-11-09T09:12:15-04:00

I want to trim multiple variables in a single line of code. For example, trimming the caret symbol (^) from the start and end of the variables a, b, c, d, e, f as below :-

Code:

foreach var {a b c d e f} {set $var [string trim $$var ^]}

The second $ in $$var doesn't get substituted. It behaves as if I had used ${$var}. Is there any 'neat/clever' way to do this without resorting to the following code :-

Code:

foreach var {a b c d e f} {set $var [string trim $[subst -nocommands -nobackslashes $var] ^]}

The problem being any dollar symbol in any one of more of the variable values will probably break the code.

Statistics: Posted by arfer — Mon Nov 09, 2009 9:12 am