Question

How to write a regexp in TCL that matches word and whitespaces. For example I have

aaaa    bbbb    cccc       

and I want to match “aaaaa “, “bbbb “, “cccc “.
And also please tell me what is the regex symbol for whitespace and non-whitespace. I can’t find it anywhere.

Thanks.

Answer 1

My thought would be to just search for groupings of word characters:

set text {aaaa bbbb cccc}
regexp -all -inline {\S+} $text
> aaaa bbbb cccc

You can find the writeup for the Tcl regular expression syntax on the re_syntax man page