Regular expression in TCL scripting

Question

I need to match "data arrival" multiple times in the string "data arrival time data arrival data arrival time data arrival data arrival time"

I have executed the below TCL code

Code:

set a "data arrival time data arrival data arrival time data arrival data arrival time"

regexp {(data arrival)*} $a match

puts $match

However i'm getting data arrival only once. Please help me out to get desired result

That is trying to match the string "data arrival" or "data arrivaldata arrival". — slebetman, May 09 '17 at 07:23
Please check my answer and let know if it is enough or you need more details. — Wiktor Stribiżew, May 09 '17 at 08:36

score 0 · Answer 1 · answered May 09 '17 at 07:23

You only search for 0 or more consecutive occurrences of data arrival substring with your regex.

You just need to find multiple matches, see example code:

set a {data arrival time data arrival data arrival time data arrival data arrival time}
set RE {data arrival}
set match [regexp -all -inline $RE $a]
puts $match

score 0 · Answer 2 · edited May 23 '17 at 11:47

0

You need to specify that you want to search for ALL occurences that match the string. Read more here: How do I extract all matches with a Tcl regex?

edited May 23 '17 at 11:47

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answered May 09 '17 at 11:23

Xyzk

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Regular expression in TCL scripting

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