## What line is it?

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RossG
Posts: 244
Joined: Thu Jan 08, 2015 7:38 am

### What line is it?

I have a list field with two items per line..

17 18
22 19
13 21
27 26

I can find the line which item 2 matches
e.g 21 but I then need the line number so that I
can extract item 1 for that line and 3 or 4
lines before and after.
Is age an excuse? Eighty-three and counting.

ClipArtGuy
Posts: 226
Joined: Wed Aug 19, 2015 4:29 pm

### Re: What line is it?

Here's what I came up with.

Code: Select all

``````local tSearch
ask "Number to find?"
put it into tSearch
set the itemdelimiter to space
repeat with x = 1 to the number of lines in fld "Your Field"
if (item 2 of line x of fld "Your Field" = tSearch) then
answer (tSearch && "is in line" && x &"."&cr&"Item 1 of line"&&x&&" is" && item 1 of line x of fld "Your Field")
end if
end repeat``````

RossG
Posts: 244
Joined: Thu Jan 08, 2015 7:38 am

### Re: What line is it?

Thanks for your help ClipArtGuy.

I must remember to use the field and
not the array which populates it (and
is superfluous anyway).
Is age an excuse? Eighty-three and counting.

jacque
VIP Livecode Opensource Backer
Posts: 5340
Joined: Sat Apr 08, 2006 8:31 pm
Location: Minneapolis MN
Contact:

### Re: What line is it?

The lineOffset function might be easier, but keep in mind that it will return only the first instance it finds unless you add the second "skip" parameter. Since you want the second item, search for space and the number.

Code: Select all

``put lineOffset(space & tNum, fld x) into tLine ``
That will give you the line number, which you can use to extract word 2, and then add 1 sequentially to get the next 2 lines.
Jacqueline Landman Gay | jacque at hyperactivesw dot com
HyperActive Software | http://www.hyperactivesw.com

dunbarx
VIP Livecode Opensource Backer
Posts: 6615
Joined: Wed May 06, 2009 2:28 pm
Location: New York, NY

### Re: What line is it?

What everyone said.

And especially Jacque's comment about the first instance. You ought to write a general purpose handler that extracts all the foundLines in any given search, as well as foundChunk within each. I have been using one forever, and find it an invaluable general purpose gadget that I call from a library stack.

Anyone remember Rinaldi's "fullFind"?

Craig

mrcoollion
Posts: 520
Joined: Thu Sep 11, 2014 1:49 pm
Location: The Netherlands

### Re: What line is it?

This thread might be of interest ?

http://forums.livecode.com/viewtopic.php?t=14622