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Name:

print -- Write to terminal or file

Synopsis:
print "foo",a$,b 
print "foo","a$,b; 
print #a "foo",a$ 
print #a "foo",a$; 
print foo using "##.###" 
print reverse "foo" 
print at(10,10) a$,b 
print @(10,10) a$,b 
print color("red","blue") a$,b 
print color("magenta") a$,b 
print color("green","yellow") at(5,5) a$,b 

Description:
The print-statement outputs strings or characters, either to your terminal (also known as console) or to an open file.

To understand all those uses of the print-statement, let's go throught the various lines in the synopsis above:print "foo",a$,bPrint the string foo as well as the contents of the variables a$ and b onto the screen, silently adding a newline.

print "foo",a$,b;
(Note the trailing semicolon!) This statement does the same as the one above; only the implicit newline is skipped, which means that the next print-statement will append seamlessly.

print #a "foo",a$
This is the way to write to files. The file with the number a must be open already, an implicit newline is added. Note the file-number #a, which starts with a hash ('#') amd is separated from the rest of the statement by a space only. The file-number (contained in the variable a) must have been returned by a previous open-statement (e.g. a=open("bar")).

print #a "foo",a$;
The same as above, but without the implicit newline.

print foo using "##.###"
Print the number foo with as many digits before and after the decimal dot as given by the number of '#'-signs. See the entries for using and str$ for a detailed description of this format.

print reverse "foo"

*** requires ncurses support compiled in ***
See Documentation/Advanced for info.

As all the print-variants to follow, this form of the print-statement can only be issued after clear screen has been called. The strings and numbers after the reverse-clause are simply printed inverse (compared to the normal print-statement).

print at(10,10) a$,b

*** requires ncurses support compiled in ***
See Documentation/Advanced for info.

Print at the specified (x,y)-position. This is only allowed after clear screen has been called. You may want to query peek$("screenwidth") or peek$("screenheight") to learn the actual size of your screen. You may add a semicolon to suppress the implicit newline.

print @(10,10) a$,b
This is exactly the same as above, however, at may be written as @.

print color("red","blue") at(5,5) a$,b
Print with the specified fore- ("red") and background ("blue") color (or colour). The possible values are "black", "white", "red", "blue", "green", "yellow", "cyan" or "magenta". Again, you need to call clear screen first and add a semicolon if you want to suppress the implicit newline.

print color("magenta") a$,b
You may specify the foreground color only.

print color("green","yellow") a$,b
A color and a position (in this sequence, not the other way around) may be specified at once.

Example:
clear screen 
columns=peek("screenwidth") 
lines=peek("screenheight") 
dim col$(7) 
for a=0 to 7:read col$(a):next a 
data "black","white","red","blue","green","yellow","cyan","magenta" 

for a=0 to 2*pi step 0.1 
	print colour(col$(mod(i,8))) at(columns*(0.8*sin(a)+0.9)/2,lines*(0.8*cos(a)+0.9)/2) "*" 
	i=i+1 
next a 
Explanation:

This example draws a cloured ellipse within the text window.
Start this program in a terminal.


Related: at, color, input, clear screen, using, ;