grep to find content in between curly braces, "{" and "},"

keshav_rk · #1 (**permalink**) 08-09-2007

problem String
~~~~~~~~~~~~~~~~~~
icecream= { smart peopleLink "good" LC "happy" ,
smartpeopleLink "dull" LC "sad" }
aend = {smart vc4 eatr kalu}

output needed
~~~~~~~~~~~~~~~~~~
smart peopleLink "good" LC "happy" , smartpeopleLink "dull" LC "sad"
smart vc4 eatr kalu

I am new to use shell script,
facing problem to fetch above result specially when curly braces are
in different lines.

i am using ksh

Any one with some idea to help.............
thanks
kris

jim mcnamara · #2 (**permalink**) 08-09-2007

FILE:

Code:

~~~~~~~~~~~~~~~~~~ 
icecream= { smart peopleLink "good" LC "happy" , 
smartpeopleLink "dull" LC "sad" } 
aend = {smart vc4 eatr kalu}

awk code:

Code:

awk ' BEGIN { p=0 }
      {
      	for(i=1; i<length($0); i++)
      	{
      	    test=substr($0, i, 1)
      		if(test=="{") {
      		    p=1
      		    continue
      		}
      		if(test=="}") {
      		    p=0;
      		}
      		if(p==1) {
      		    printf("%s", test)
      		}
      	}
      	printf("\n") } ' filename

output

Code:

 smart peopleLink "good" LC "happy" ,
smartpeopleLink "dull" LC "sad"
smart vc4 eatr kalu

keshav_rk · #3 (**permalink**) 08-09-2007

jim thanks

but i need to have output as

output needed
~~~~~~~~~~~~~~~~~~
smart peopleLink "good" LC "happy" , smartpeopleLink "dull" LC "sad"
smart vc4 eatr kalu

is there any way to fetch all the contents that come in between curly braces, "{" and "},"

regards
kris

reborg · #4 (**permalink**) 08-09-2007

Code:

sed -n -e '$!N' -e 's/\n//g' -e 's/.*{\([^{][^{]*\)}.*/\1/gp' filename

ghostdog74 · #5 (**permalink**) 08-09-2007

If you have Python and open to alternatives:

Code:

#!/usr/bin/python
import re
data=open("file").read()
result=re.compile("{(.*?)}",re.M|re.DOTALL).findall(data)
for item in result:
    item=item.replace("\n","")
    print item

output:

Code:

# python test.py
 smart peopleLink "good" LC "happy" ,smartpeopleLink "dull" LC "sad"
smart vc4 eatr kalu

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