BrightSign HD2000 BrightScript Reference Guide - Manual (Page 2)

2
Table of Contents
INTRODUCTION ..................................................................................................4
Q UICK E XAMPLE ............................................................................................................................ 4
LINE NUMBERS AND STATEMENT SEPARATOR............................................5
EXPRESSIONS, VARIABLES, AND CONSTANTS.............................................5
E XPRESSION S UMMARY ................................................................................................................. 5
V ARIABLE N AMES .......................................................................................................................... 5
T YPES ........................................................................................................................................... 6
T YPE D ECLARATION C HARACTERS ................................................................................................. 7
O PERATORS .................................................................................................................................. 7
O RDER OF O PERATIONS ................................................................................................................ 7
S TRING O PERATORS ...................................................................................................................... 8
D ETERMINING THE TYPE OF A CONSTANT ........................................................................................ 8
T YPE C ONVERSION (P ROMOTION ) .................................................................................................. 9
E FFECTS OF T YPE C ONVERSIONS ON A CCURACY ............................................................................ 9
A SSIGNING D OUBLE -P RECISION V ALUES ...................................................................................... 10
A RRAYS ...................................................................................................................................... 10
S TRINGS ..................................................................................................................................... 10
L OGICAL O PERATORS .................................................................................................................. 11
H EX AND O CTAL .......................................................................................................................... 11
PROGRAM STATEMENTS ................................................................................12
DEF TYPE .................................................................................................................................... 12
CLEAR ...................................................................................................................................... 12
DIM NAME ( DIM 1, DIM 2, …, DIM K) ................................................................................................ 12
LET VARIABLE = EXPRESSION ...................................................................................................... 13
END ........................................................................................................................................... 13
STOP......................................................................................................................................... 13
GOTO LINE NUMBER OR LABEL OR RUN - TIME VARIABLE ................................................................. 13
GOSUB LINE NUMBER OR LABEL OR RUN - TIME VARIABLE ............................................................... 13
RETURN ................................................................................................................................... 14
ON N GOTO LINE NUMBER OR LABEL , …, LINE NUMBER OR LABEL OR RUN - TIME VARIABLE .............. 14
FOR COUNTER = EXP TO EXP STEP EXP NEXT COUNTER ........................................................... 14
ON ERROR GOTO LINE NUMBER ............................................................................................... 15
RESUME LINE NUMBER .............................................................................................................. 16
REM........................................................................................................................................... 16
IF TRUE / FALSE EXPRESSION THEN ACTION - CLAUSE ...................................................................... 16
THEN STATEMENT OR LINE NUMBER OR LINE LABEL ...................................................................... 17
ELSE STATEMENT OR LINE NUMBER OR LINE LABEL ....................................................................... 17
BLOCK IF, ELSEIF, THEN, ENDIF............................................................................................ 17
DATA ITEM LIST .......................................................................................................................... 18
READ ITEM LIST .......................................................................................................................... 18
RESTORE ................................................................................................................................. 19
CONSOLE STATEMENTS .................................................................................20
PRINT ITEM LIST ......................................................................................................................... 20
PRINT TAB ( EXPRESSION ).......................................................................................................... 21
INPUT ITEM LIST ......................................................................................................................... 21
LINEINPUT STRING VARIABLE ..................................................................................................... 21
POS( X )....................................................................................................................................... 22