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Need help with sed/awk command

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# 1  
Old 10-20-2014
Need help with sed/awk command
Dear all,

I have a file named as fileName with following entities,
Code:
functions
{
    planeDictName
    {
        type            surfaces;
        functionObjectLibs ( "libsampling.so" );
        outputControl   timeStep;
        surfaceFormat   vtk;
        fields          ( p U );
        interpolationScheme cellPoint;
        surfaces
        (
            planeName
            {
                type plane;
                    basePoint (0.0 0.0 0.025);
                    normalVector (0 0 1);
                triangulate false;
                interpolate true;
            }
        );
    }


    planeDictName2
    {
        type            surfaces;
        functionObjectLibs ( "libsampling.so" );
        outputControl   timeStep;
        surfaceFormat   vtk;
        fields          ( p U );
        interpolationScheme cellPoint;
        surfaces
        (
            planeName
            {
                type plane;
                    basePoint (0.0 0.0 0.075);
                    normalVector (0 0 1);
                triangulate false;
                interpolate true;
            }
        );
    }
}

Entities in red colour are user defined names. I want to read these names using awk, grep or sed commands and store in shell variables.

Can somebody help me?

Thanks & Regards,
linuxUser_
# 2  
Old 10-20-2014
What have you tried?
# 3  
Old 10-20-2014
Quote:
Originally Posted by Corona688
What have you tried?
too tough question. Smilie
I don't see any condition to read the parameters in this format except functions :-o.
There is no rule to provide it like this
Code:
functions {     planeDictName     {

it can be something like this as well.
Code:
functions {





    planeDictName     {

string between two limiters { and } in this case will not work but it may be done as follows
Code:
sed 's/.*{\(.*\)}\.*/\1/' file

but I am still dumb in my problem.


Thanks & Regards,
linuxUser_

---------- Post updated at 11:03 PM ---------- Previous update was at 10:54 PM ----------

Ideal way for the solution may be,

create a string of length n, (2 in this case as only 2-plane's data needs to be written).

shell parameters:

dictName[1] = planeDictName
dictName[2] = planeDictName2
:
:
dictName[n] = .... dicts as many as present.

planeName[1] = planeDictName
planeName[2] = planeDictName2
:
:
planeName[n] = .... planes as many as present.


and fields .... there is no limit for number of fields...


1st question,
Is shell script is good choice for this problem?
# 4  
Old 10-20-2014
Well, what you're asking for isn't trivial. There's not a one-liner I can wave at you to fix it, especially when you point out that your data isn't "pretty" the way you presented it. Neither awk nor sed nor most commandline tools are really suited for parsing recursive grammar. You have to chew through it character by character.

Do you have a C compiler?
# 5  
Old 10-20-2014
Quote:
Originally Posted by Corona688
Well, what you're asking for isn't trivial. There's not a one-liner I can wave at you to fix it, especially when you point out that your data isn't "pretty" the way you presented it. Neither awk nor sed nor most commandline tools are really suited for parsing recursive grammar. You have to chew through it character by character.

Do you have a C compiler?

Yes, gcc
# 6  
Old 10-20-2014
I guess the regex [Pp]lane.*[Nn]ame.* (although ideal for the eample given) won't work for the general case. Try to describe in plain English WHAT you want to extract.

---------- Post updated at 20:02 ---------- Previous update was at 19:55 ----------

Maybe a first step :
Code:
awk '{CNT=CNT + gsub (/{/,"") - gsub(/}/,""); if (CNT==1 && !/^ *$/) print}' file
    planeDictName
    planeDictName2

This User Gave Thanks to RudiC For This Post:
linuxUser_
# 7  
Old 10-20-2014
in functions{}, there will be many sub-dicts.
one of them is
Code:
    planeDictName
     {
         type            surfaces;
         functionObjectLibs ( "libsampling.so" );
         outputControl   timeStep;
         surfaceFormat   vtk;
         fields          ( p U );
         interpolationScheme cellPoint;
         surfaces
         (
             planeName
             {                 type plane;
                     basePoint (0.0 0.0 0.025);
                     normalVector (0 0 1);
                 triangulate false;
                 interpolate true;
             }
         );
     }

in this I want to store names(in red colour) in shell variables

for this case, consider shell variables
dictName, planeName, fieldNames

dictName = planeDictName
planeName = planeName
fieldNames[1] = p
fielsNames[2] = U
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