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JMinara
Beginner
Joined: 05 Jul 2005
Posts: 14
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 Posted: Thu Apr 20, 2006 6:59 am
Determining line number of a string in a text file
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I'm working with a textfile and I'm searching for a string, and I need to know the line number of that string. Basically I need %grep, except instead of returning the value of the line I need it to return the line number.
Is there any way to do that?
Edit: Evidently not. |
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shalimar
GURU
Joined: 04 Aug 2002
Posts: 4689
Location: Pensacola, FL, USA
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Posted: Thu Apr 20, 2006 7:19 am
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if you can loop through the file line by line, adding them in turn to a variable array... %ismember would return the numeric position within the array
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Discord: Shalimarwildcat |
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Tarn
GURU
Joined: 10 Oct 2000
Posts: 873
Location: USA
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Posted: Thu Apr 20, 2006 7:20 am Re: Determining line number of a string in a text file
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| JMinara wrote: |
I'm working with a textfile and I'm searching for a string, and I need to know the line number of that string. Basically I need %grep, except instead of returning the value of the line I need it to return the line number.
Is there any way to do that?
Edit: Evidently not. |
Why not?
Open a file with #FILE.
You probably have a readme.txt in your zMud directory, so
#FILE 1 "readme.txt"
(opening "readme.txt" as file 1)
Then,
#SHOW %read(1)
will read a single line from file 1.
Instead of showing the line, put it in a loop with a counter, and use the "~=" pattern-checking operator to see if a particular line matches a pattern. If it matches the pattern, the counter can tell you what line you're on.
Alternatively: use the mechanism above to read the file and write another, numbering the lines as it goes. %Then grep could give you the numbered lines matching your pattern from the new file.
-Tarn |
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