CODEWITHSUNDEEP
stringtcl
user2131316
user2131316

Reputation: 3287

how to get some part of a string in TCL

I have a string in tcl like this:

set hello 0x09

how to get the last part of $hello, like 09 from it?

Upvotes: 0

Views: 246

Answers (2)

siyb
siyb

Reputation: 2947

The simplest answer to your question would be:

set result [lindex [split $hello "x"] 1]

Depending on your problem, this solution might not be the best. What is it you are trying to do?

Upvotes: 1

glenn jackman
glenn jackman

Reputation: 247210

You could evaluate the string in a slave interpreter, and rely on the fact that the set command returns its value:

set cmd {set hello 0x09}
set i [interp create -safe]
set value [interp eval $i $cmd]
puts $value

0x09

This also protects you from set hello [exec echo malicious command here]

Upvotes: 0

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