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Problem with a AWK Script

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# 1  
Old 05-22-2009
Java Problem with a AWK Script
Hi

I am having some contents in my file like this

file1

Code:
##########################
 
pin (PIN1) {
     direction : input ;
     capacitance : 121 ;
     max_transition :  231 ;
 }
   pin (PIN2) {
     direction : input ;
     capacitance : 124 ;
     max_transition : 421 ;
##########################
 
The Awk script should search the "PIN1" and then "max_transition" of the Group PIN1 
 
and Insert the following code 
 
timing () {
       related_pin : PIN4 ;
       timing_type : setup_rising ;
       rise_constraint (scalar) {
         values ("0.20000") ;
       }
       fall_constraint (scalar) {
         values ("0.20000") ;
       }
     }
     
 
so final Contents of the file 1 should be 
 
file 1
 
###########################
pin (PIN1) {
     direction : input ;
     capacitance : 121 ;
     max_transition :  231 ;
 }
timing () {
       related_pin : PIN4 ;
       timing_type : setup_rising ;
       rise_constraint (scalar) {
         values ("0.20000") ;
       }
       fall_constraint (scalar) {
         values ("0.20000") ;
       }
     }

 pin (PIN2) {
     direction : input ;
     capacitance : 124 ;
     max_transition : 421 ;

can anyone help me out in this ?

Thanks and Regards
Kshitij Kulshreshtha
# 2  
Old 05-22-2009
Suppose you have the code you want to insert in a file insert_file:

Code:
awk '
/PIN1/{f=1}
f && /}/{print;system("cat insert_file");f=0;next}
1' file1 > newfile

# 3  
Old 05-22-2009
Code:
awk '
/PIN1/{f=1}
f && /}/{
 print
 print "timing () {"
 print "    related_pin : PIN4 ;{"
 print "    rise_constraint (scalar) {"
 print "    values (\"0.20000\") ;"
 print "    }"
 print "    fall_constraint (scalar) {"
 print "       values ("0.20000") ;"
 print "    }"
 print "  }"
 f=0
 next
}1' file

# 4  
Old 05-24-2009
Java Problem with a awk script
awk '
/PIN1/{f=1}
f && /}/{print;system("cat *insert_file*");f=0;next}
1' file1 > newfile

I could not understand how this code works
Can anyone explains me this ?

Thanks and Regards
Kshitij Kulshreshtha
# 5  
Old 05-24-2009
Code:
awk '
/PIN1/{f=1}
f && /}/{print;system("cat insert_file");f=0;next}
1' file1 > newfile

Awk reads the file line by line and applies the command.
When a line matches PIN1, it sets a flag(f=1).
And keeps reading the file line by line. When it finds the line that matches a closing brcket }, it checks the flag value.
If the flag value is set and also it matches the }, then it prints the line and then also prints the contents of the file "insert_file". It then resets the flag and starts processing the next line and jumps to the frst command in the awk script, repeating the loop.


-Devaraj Takhellambam
# 6  
Old 05-24-2009
Java Problem with a AWK SCRIPT
Thanks for your previous reply

Awk script with new requirements

file1
#######################

Code:
pin (PIN1) {
     direction : input ;
     capacitance : 121 ;
     max_transition :  231 ;
 }
 
pin (PIN2) {
     direction : input ;
     capacitance : 124 ;
     max_transition : 421 ;

##############################

Need to write an awk script which should search PIN1
and max_transition of the Group PIN1 and then add the limited code from the file insert_file

like this

insert_file
#################
Code:
timing () {
       related_pin : PIN4 ;
       timing_type : setup_rising ;
       rise_constraint (scalar) {
         values ("0.20000") ;
       }
       fall_constraint (scalar) {
         values ("0.20000") ;
       }
     }
timing () {
       related_pin : PIN5 ;
       timing_type : setup_rising ;
       rise_constraint (scalar) {
         values ("0.20000") ;
       }
       fall_constraint (scalar) {
         values ("0.20000") ;
       }
     }
timing () {
       related_pin : PIN6 ;
       timing_type : setup_rising ;
       rise_constraint (scalar) {
         values ("0.20000") ;
       }
       fall_constraint (scalar) {
         values ("0.20000") ;
       }
     }

only the code related to PIN4 should be inserted in the file1

so the new file2 contents should be

file2
######################


Code:
pin (PIN1) {
     direction : input ;
     capacitance : 121 ;
     max_transition :  231 ;

timing () {
       related_pin : PIN4 ;
       timing_type : setup_rising ;
       rise_constraint (scalar) {
         values ("0.20000") ;
       }
       fall_constraint (scalar) {
         values ("0.20000") ;
       }
     }

pin (PIN2) {
     direction : input ;
     capacitance : 124 ;
     max_transition : 421 ;
}

Last edited by vidyadhar85; 05-24-2009 at 06:45 AM.. Reason: added code tags
# 7  
Old 05-24-2009
Code:
sed -n '/timing/{N;N;N;N;N;N;N;N;N;/timing.*PIN4/p;N}' insert_file | awk '/PIN1/{f=1}
f && /}/{print;system("cat $1");f=0;next}1' inputfile


-Devaraj Takhellambam
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