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Hello,
Its not in flat file,Its is a field My field may have varible no of '_' i want to extract values b/w second last '_' and third last '_'. i want to store this details in same database as a field
I'm sorry if someone has already answered your question. I've read the thread over, but I'm somewhat confused by whether this was resolved or not.
What I'd do is write a loop that searches for the underscore character. Something like this:
midrange.com
len = %len(Input);
count = 0;
For pos = len downto 1;
if %subst(input:pos:1) = '_';
count = count + 1;
select;
when (count = 2);
endpos = pos - 1;
when (count = 3);
startpos = pos + 1;
leave;
endsl;
endif;
endfor;
if ( count < 3 );
// error -- not enough underscores found!
data = '';
else;
len = (endpos - startpos) + 1;
data = %subst(Input: startpos: len);
endif;
I didn't compile or test this code, but it should give you the basic idea.
This is what it does:
a) Find out how long the string is. b) Loop from the last position to the first position c) Count each '_' char. d) Save the 2nd & 3rd ones from the end. e) If they were found, extract the data between them.Pretty simple, really. There's no need to reverse the characters in the string, doing so would only require additional CPU time. Though, reversing the characters would be easy enough to do just by looping from the end to the start and concatenating each character to a new string.
Anyway, good luck.
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