Array to string in TCL

Question

How can I convert a known array in to string in TCL? an array might have values such as root_user_appversion 10.1.3.20 and/or I just want to take out the last values out of it which 10.1.3.20 .

At least show your effort what you have done.

toxic_boi_8041
– toxic_boi_8041

2016-03-19 08:38:38 +00:00
Commented Mar 19, 2016 at 8:38 — toxic_boi_8041
– toxic_boi_8041, Commented Mar 19, 2016 at 8:38

glenn jackman · Accepted Answer · 2016-03-18 13:58:28Z

4

You can transform the array in list:

set my_list [array get my_array]

puts "last element: [lindex $my_list [expr {[llength $my_list] -1}] ]"

After that, you can easily convert your list in string with join:

set my_string [join $my_list " "]

edited Mar 18, 2016 at 13:58

glenn jackman

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answered Mar 18, 2016 at 10:16

Mathieu

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2 Comments

Peter Lewerin Over a year ago

lindex $my_list end is more idiomatic.

Peter Lewerin Over a year ago

Another problem with this is that it doesn't really solve the problem, it just stringifies the array contents.

Peter Lewerin · Accepted Answer · 2016-03-26 22:32:21Z

0

I think you want

join [dict values [array get the_array]]

Which takes a list of alternating key / value items, filters out the value items, and joins them into a string.

Note that values with spaces will be munged: in that case you're better off with just dict values [array get the_array].

Documentation: array, dict, join

edited Mar 26, 2016 at 22:32

answered Mar 18, 2016 at 12:43

Peter Lewerin

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