Commodore Plus 4 - Page 93

BASIC Version 3.5 Commands, Functions, and System Variables 81
The number in parentheses is a dummy argument, which means it does not
mean anything. It is nonetheless required, and you should just type RGR(O).
Example: PRINT RGR(O)
2 The current graphic mode is split-screen high-res.
RIGHTS Abbr. rl
RIGHTS (string, length)
Returns a substring of the designated string with the specified length. RIGHTS
is used frequently to check the end of an input string.
Parameters: master string, number of characters to use
1. The master string can be any text string, text-string variable, or string
expression.
2. The RIGHTS substring always begins at the rightmost character in the
master string. You can use as many characters as you want. If you specify more
characters than the string contains, the entire string is returned.
Examples: PRINT RIGHT$("GRADUATE",3)
ATE
PRINT RIGHT$("RED",4) The string contains only
RED three characters so only
three are printed.
10 INPUT "WHAT DAY IS IT"; D$
20 INPUT "MORNING OR AFTERNOON"; T$
30 IFRIGHT$(D$,4>"SDAY''THEN
PRINT "TUES/THURS SCHEDULE"
RUN
WHAT DAY IS IT? THURSDAY
MORNING OR AFTERNOON? AFTERNOON
TUES/THURS SCHEDULE
RLUM Abbr. rL
RLUM (color source)
Find the number of the color luminance level assigned to one of the five color
sources:
0 screen background color
1 foreground color