Error while using scan() in the procedure script

smp wrote on May 06, 2009

Hi,

This is segment of my script:

procedure new (object_filename,flat_filename)

string  object_filename  {prompt = "Give name of file containing science images"}
string flat_filename     {prompt = "Give name of file containing flat images"}

  :
struct *imglist

begin
   string  imname
  :
  :
imgfile = mktemp("tmp$HD80606_B_")
sections(obj_file, option = "fullname", > imgfile)
imglist = imgfile

while(fscan(imglist,imname) != EOF)
     {
        printf(imname//"_left") | scan(str)              
        imcopy(input = imname//"[1:1084,*]", output = str, verbose = no)
  :
  :
     }

If run the script, I get following error:

ERROR: scan limited to 1022 char lines
scan (new.str)
new ()

Please tell what is wrong in the script?

Regards
smp

---

Mike Fitzpatrick wrote on May 06, 2009

The scan() wants to see a newline: either use print() instead or else put a "\n" at the end of the string.

-Mike

---

smp wrote on May 06, 2009

I tried

print(imname//"_left") | scan(str)

But then I got the error:

ERROR on line 147: Attempt to access undefined local variable `str'

---

Mike Fitzpatrick wrote on May 06, 2009

That message usually means the scan to the variable failed, i.e. either the fscan() in the loop didn't read anything into 'imname', or you're running something like "foo() | scan(str)" but the foo() didn't produce any output so the scan didn't load 'str' and you later tried to use it.

-Mike

---

smp wrote on May 06, 2009

thanks

it worked

regards

---

Last post on May 06, 2009