printf() as first line and number formatting

Hi Evan,

 There are plenty of ways to achieve this but these might give you some ideas:

Eg.1: sprintf(nil, if(integerp(n), "%d", "%2.3f") n)

Eg. 2: axlMKSStr2UU(sprintf(nil, "%n", readstring(sprintf(nil, "%n", value))))

Eg. 3: if(value then value = readstring(value), axlMKSStr2UU(sprintf(nil, cond((stringp(value), value)(integerp(value), "%d"), (floatp(value), "%2.3f")) value)) else "")

Hi

As you point out, there are plenty of ways. I've used sprintf a number of times to create the formatting string. You can then just wrap this sprintf command into case or if/then constructs depending on what you're looking at. You just have to keep you head cold when writing the formatting string, it can get complex.

example: (taken from a pick and place output utility that I've made)

pn_length > 1 if partnumber is defined for part

package_length is the length of the package symbol name (strlen)

value_length is the length of the component value (strlen)

  if( pn_length > 1 then
   sprintf(pp_header "%s%d%s%d%s%d%s" "%-7s %-8s %-8s %-8.3f %-" (package_length +2) "s %-" (value_length +2) "s %-" (pn_length+2) "s\n")
  else
   sprintf(pp_header "%s%d%s%d%s%s" "%-7s %-8s %-8s %-8.3f %-" (package_length +2) "s %-" (value_length +2) "s" "\n")
  )

then just use the fprintf or printf with the formatting header

     if( pn_length > 1 then
      fprintf(sm_top, pp_header, c_refdes, x_coor, y_coor, c_rotation, c_psm, c_value, c_pn)
     else
      fprintf(sm_top, pp_header, c_refdes, x_coor, y_coor, c_rotation, c_psm, c_value)
     )

c_refdes=reference designator, x_coor is x coordinate, y_coor is y coordinate, c_rotation is the rotation, c_psm is the package symbol name, c_value is the component value and c_pn is the component partnumber

Best regards

Ole 

Hope this helps?

 Hi Dave and Ole,

 Thank you very much! I am getting the formatting I desire now! I knew it could be done and you two showed me a way.

In case anyone might see this and use it in the future, I'm presenting my solution. I decided to use the cond() function and then checked for the type of object I was dealing with. That way I can print the object differently depending on what it is. Like so:

cond(                                                                
    (integerp(object) sprintf(object_str "%d" object))
    (floatp(object) sprintf(object_str "%g" object))
)

Now, I can use "%s" to print the object. And I don't have any trailing zeros for floats and integers stop at the decimanl point. And I could add a null(object) to see if there was no value, or check for equality within the cond(), etc. So I can cover all the cases I detailed above.

It seems like a fairly simple concept now, and I appreciate your help in making this concept seem simple. Thanks again!!

I am getting the printing results I want, but SKILL Lint isn't so happy with one line of code. In the case where the input variable is nil, it is being fed to the else clause of an if statement and dealt with using the following code:

sprintf(object_str "" nil)

 That works just fine and gives me the result I want, so I can print everything with a "%s" format. But although I'm happy with the code and it does just want I want, SKILL Lint doesn't give the program an IQ of 100 due to this line of code.

 What could be the problem with this line of code? Should I ignore SKILL Lint's complaint? Is there a way to make a nil variable into an empty string, printable by "%s", without making SKILL Lint gripe?

As an aside, page 10 of http://www.cadence.com/rl/Resources/conference_papers/stp_cdnlive2006India_AlgroSkill.pdf shows SKILL Lint recommending a replacement of nth(1 ...) with cadr(...). Why? What about be the implications? How much weight can be given to SKILL Lint results?

Hi Evan,

I work with SKILL in the CIC (Custom IC) tools where we have Lint also.  I suspect that the problem is that you do not have any format specifier in the formatting string. Typically you can use as a format specifier %L to print anything including 'nil' which would throw an error if used with a format like %s etc. So your example might now be:

sprintf(object_str "%L" nil)

However, I don't understand what you are trying to do. What do you want the string object_str to contain if the variable is nil?  I hope that this is useful information, but if not, explain what you are trying to achieve and we may be able to help you further.

Regards,

Lawrence.