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How to extract sub-string from array [message #61699]

Mon, 28 July 2008 01:07

Ian Dean
Messages: 26
Registered: January 2000

Junior Member

Hi,
I've got an array such as ['Test_data;01', 'Test_data;005',
'New_dat;100','Old_dat'....]

What I'd like to do but haven;t achieved is create an array of the extension
past the ';'
i.e. ['01','005','100',''....]
I've tried this:

semi_colon = STREGEX(Data_array, ';')
; This gives an array of positions [9, 9, 7,-1...]

I can replace the -1s with string lengths easily enough giving [9, 9, 7,
7...]
However, I can't seem to extract the sub-strings
I tried
Extension = STRMID(Data_array, semi_colon + 1)
but this gives me a 2-d array and no clue which elements I require.
I suspect that there is some arcane use of histogram, but I am not brave
enough to try.

I know why the STRMID is failing, because the help says so, because both
arguments are arrays.
Looping though the list is not an option as in reality I have an array
length in the order of 500,000

Any help would be appreciated,
Regards,
Ian

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How to extract sub-string from array

By: Ian Dean on Mon, 28 July 2008 01:07

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