This is not directly possible from the FORMAT keyword.





However, you can create a sub-macro that takes your number as an argument and format it accordingly. You can then call this sub-macro whenever it is needed.





I have drafted this sub-macro and a dummy macro to illustrate its function.

Dummy macro defining the number to be formatted

# Define a number


a_number = 123456789


# Print the number


PRINT "Input number = ", a_number


PRINT "Calling formatting sub-macro..."


PRINT ""


PRINT "Formatted number = ",


# Define the number as an input for the sub-macro


CALLSETDBL 1, a_number


# Call the formatting sub-macro


CALLMACRO Comma_separation.ZPL

Sub-macro formatting the numbers with commas

# Retrieve input number


a_number = CALD(1)


# Change format to 3 digits integer


FORMAT 3 INT


# If input number is smaller than 1000 ...


IF (a_number > 999)


    # and if input number is smaller than 1000000 ...


    IF (a_number > 999999)


        a_string$ = $STR(a_number)


        a_string$ = $RIGHTSTRING(a_string$, 6)


        


        # ... otherwise, we print the millions, add a coma


        PRINT $STR(a_number/999999), ",",


        # print the thousands, add another coma


        PRINT $LEFTSTRING(a_string$, 3), ",",


        # and then print the rest


        PRINT $RIGHTSTRING(a_string$, 3)


    ELSE


        a_string$ = $STR(a_number)


        


        # ... we first print the thousands, add a coma


        PRINT $STR(a_number/1000), ",",


        # and then print the rest


        PRINT $RIGHTSTRING(a_string$, 3)


    ENDIF


ELSE


    # ... we just print that number


    PRINT a_number


ENDIF

If you copy those to macro to your \Documents\Zemax\Macros folder and execute Comma_example.ZPL, this will give the following result:











Please note that you'd need to modify this macro if you want to account for numbers greater than 999,999,999.





Kind regards,








David

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Hey David,





I think there might be a way to do it with just the FORMAT keyword. We support this structure:


 

FORMAT "C_format_string" [lit]

The optional keyword LIT (for literal) indicates the value should be printed according to the “C” language format specifier. I'll bet (without proof, but that's why it's betting) that C supports this kind of format directly.





Best,





- Mark

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Actually, I can't find a C format spec for this...I'm really surprised!

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Hi Mark,








I did spend a little bit of time searching for the C syntax that would give me this number formatting. However, to my surprise as well, it was not easy to figure out.





I ended up writting this sub-macro, but I'm happy to change it if someone finds a better solution!





Kind regards,








- Davd

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