OpenEuphoria

1. column aligmnent %4d versus %d

• Posted by jessedavis Jun 20, 2016
• 1730 views

Euphoria 4.00.05 Windows 7 Pro
Another off-the-wall question. I just wrote a short euphoria routine that allows me to print to a inkjet printer from within euphoria without a lot of hassle. The problem is everyone asking me, "Can't you keep the columns straight?" So, I did a little test the result of which is that if I use the formatting string -> "%4d" <- I get columns that have the correct number of spaces and digits and are generally aligned but wander by about 1/2 character width. If I use the format string -> "%d <- I get perfect character alignment; however, since there are different numbers of digits the entire column moves back and forth. I am using w32lib function wputs to print. The text string sent to wputs is created by sprintf(). I am using courier, a monospace font. I have tentatively ruled out the printer (HP8610) - wputs combination because I can print a single character anywhere on the page that is "bang on" location wise (to the nearest few thousandths of an inch - dial calipers!). Has anyone out there explored this? Maybe found a solution? I suppose I could draw the characters on the page and then print the dots? Bite your tongue!

Thanks, in advance,
jd

3. Re: column aligmnent %4d versus %d

• Posted by jessedavis Jun 21, 2016
• 1684 views

Thanks for the quick reply.
I guess I don't understand. position(x,y) applies only to the cursor position of the console monitor.

regards, jd

5. Re: column aligmnent %4d versus %d

• Posted by jessedavis Jun 22, 2016
• 1654 views

        startDoc( "EuPrint Job")      ---|----WIN32LIB PRINTER ROUTINES 
        startPage()     -----------------| 
 
 
        for i = 1 to length(txt) do 
                integer len = length(txt[i]) 
                sequence build_line = {} 
                if line_num then 
                    build_line = build_line & sprintf("%4d%1s", {line_num,lne_flg}) 
                    build_line = build_line & txt[i] 
                    line_num += 1     
                end if                
                wPuts({Printer,left_margin,top_margin +(i-1) * page[6]},build_line)    --page[6] is the line spacing 
        end for	 
		 
	endPage()   ---------| 
        endDoc()        -----|----W32LIB ROUTINES TO HANDLE PRINTER 
        releasePrinter()  ---| 
 

1st line: XXX9Xtext string X is a space character
2nd line: XX10Xtext string

I cannot illustrate it here but the problem is that on the printout page the "9" is not above the "0" in "10" but between the "1' and the "0" in "10" it's shifted 1/2 character to the left. My understanding of the format string is that it should always place 4 character slots on the page, placing the integer as is appropriate and should not attempt to "center" or whatever it's trying to do. Since I am using a constant width font the characters should stay put, in the slots provided.

7. Re: column aligmnent %4d versus %d

• Posted by DonCole Jun 23, 2016
• 1619 views

I still think the best way is to use position to force the line to be straight.

I included a small code I whipped up real fast.

You can substitute your own data for Col%d.

include win32lib.ew 
constant col={1,15,22,33,44} 
integer i 
for x=1 to 10 do 
    for y=1 to length(col) do 
        position(x,col[y]) 
        printf(1,"Col%d",{y}) 
    end for 
end for 
i=wait_key() 
 

Don Cole