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Problem syntax with user-defined function

 
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# 8  
Old 04-09-2012
Where are you calling the function?
BTW: note the space between n and v, n, v. This is convention, although it should be a TAB character, not a space, but I guess that got lost somewhere in copy-paste land.. This means that the variable to the right of the TAB are local variables and that the function has 1 parameter...
Last edited by Scrutinizer; 04-09-2012 at 03:45 AM..
# 9  
Old 04-09-2012
Ok, but How do you call the function?

I tried with:
Code:
{b = split($2,a,", ")
       for (i=1; i<=b; i++){
        n = a[i]
        
        convert($2) 
       
       }
}1

Code:
{b = split($2,a,", ")
       for (i=1; i<=b; i++){
        n = a[i]
        
        convert(n) 
       
       }
}1

Code:
{b = split($2,a,", ")
       for (i=1; i<=b; i++){
        n = a[i]
        
        convert(a[i]) 
       
       }
}1

it returns the input everytime.


***EDIT***
Still the same with the TAB
# 10  
Old 04-09-2012
Try:
Code:
#!/usr/bin/awk -f

BEGIN{FS=OFS="|"}

function convert (n,    v,w,x,y,r1,r10,r100,r1000){
  split("I II III IV V VI VII VIII IX",r1," ")
  split("X XX XXX XL L LX LXX LXXX XC",r10," ")
  split("C CC CCC CD D DC DCC DCCC CM",r100," ")
  split("M MM MMM",r1000," ")

  v = (n - (n % 1000)) / 1000

  n = n % 1000
  w = (n - (n % 100)) / 100

  n = n % 100
  x = (n - (n % 10)) / 10

  y = n % 10
  return(r1000[v] r100[w] r10[x] r1[y])
}


{ 
  b = split($2,N,", ")
  for (i=1; i<=b; i++){
    s=s convert(N[i]) " "
  }
  $2=s
}
1

There was not return statement in the function
You needed to assign the outcome to field 2..
This User Gave Thanks to Scrutinizer For This Post:
lucasvs
# 11  
Old 04-09-2012
Great !

Thanks!

but what is the function of the "return" statement?
# 12  
Old 04-09-2012
The return statement can be used to return a value. Note that s=s convert(N[i]) " " is a concatenated assignment to variable s, consisting of 3 strings: s, convert(N[i]) , and a space
Last edited by Scrutinizer; 04-09-2012 at 04:42 AM..
 
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