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Awk match a multiline pattern

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# 1  
Old 10-12-2009
Awk match a multiline pattern
Hello!

i wanna match in a config file, one text with more than one lines, something like this:

Code:
CACHE_SIZE{
10000 M
}

I have problems with the ends of line, i think that i can match the end of the line with \n, but i can't get it

Someone can help me with the regular expression?

Thanks!
# 2  
Old 10-12-2009
Not sure if I undestood what you need but here is an example with a preceding block and a block afterwards, separated by a blank line:

Code:
$> cat infile
eins
zwei
drei

CACHE_SIZE{
10000 M
}

vier
fuenf
sechs
$> awk '/^CACHE_SIZE/ {print}' FS="\n" RS="" infile
CACHE_SIZE{
10000 M
}

# 3  
Old 10-12-2009
Sorry, but i can use FS="\n" because my file have 3 differents patterns, and i need to use FS="\t". My file is something like this:
Code:
123M     xls     <670K
234K     doc    >800K

CACHE_SIZE{
1000M
}

Then i have a regexp that matches the first pattern, because this i need FS="\t" and need to match the second
Code:
CACHE_SIZE{
1000M
}

# 4  
Old 10-12-2009
Separate the processing of your file into two different runs?

Or check if your line starts with something like your CACHE_SIZE{ and let it do getline until there is a closing curled bracket or work with a flag to notice when the bracket opens and when it closes. So you will not need to change FS or RS for that part.
# 5  
Old 10-12-2009
No, i don't want separate the processing of my file in 2 diferents runs, i wanna run first a regexp, and this retunrs the values to me and then run the second regexp but continuosly not in 2 diferents runs.
# 6  
Old 10-13-2009
Then maybe go with the second suggestion I mentioned.
# 7  
Old 10-13-2009
Ok, thanks!

I'll try to search information about getline works.
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