Brightsign BrightScript 2 Reference Guide Bedienungsanleitung PDF herunterladen (Seite 2)

Table of Contents

INTRODUCTION .................................................................................................. 5

STATEMENT SUMMARY .................................................................................... 6

EXPRESSIONS, VARIABLES, AND TYPES ....................................................... 7

IDENTIFIERS ................................................................................................................................... 7

TYPES ............................................................................................................................................ 7

LITERALS (CONSTANTS) .................................................................................................................. 8

TYPE DECLARATION CHARACTERS ................................................................................................ 10

TYPE CONVERSION (PROMOTION) ................................................................................................. 10

EFFECTS OF TYPE CONVERSIONS ON ACCURACY .......................................................................... 10

OPERATORS ................................................................................................................................. 11

STRING OPERATORS .................................................................................................................... 11

FUNCTION REFERENCES ............................................................................................................... 11

LOGICAL AND BITWISE OPERATORS .............................................................................................. 11

“DOT” OPERATOR ......................................................................................................................... 12

ARRAY/FUNCTION CALL OPERATOR .............................................................................................. 12

= OPERATOR ................................................................................................................................ 13

ROKU OBJECTS, INTERFACES, AND LANGUAGE INTEGRATION .............. 14

A BRIEF SUMMARY OF ROKU OBJECTS .......................................................................................... 14

BRIGHTSCRIPT STATEMENTS THAT WORK WITH ROKU OBJECT INTERFACES .................................... 14

WRAPPER OBJECTS AND INTRINSIC TYPE PROMOTION .................................................................... 15

BRIGHTSCRIPT XML SUPPORT ..................................................................................................... 16

GARBAGE COLLECTION ................................................................................. 19

EVENTS ............................................................................................................. 20

THREADING MODEL ......................................................................................... 21

SCOPE ............................................................................................................... 22

CREATING AND USING INTRINSIC OBJECTS ............................................... 23

PROGRAM STATEMENTS ................................................................................ 24

DIM NAME (DIM1, DIM2, …, DIMK) ................................................................................................ 24

VARIABLE = EXPRESSION .............................................................................................................. 24

END ............................................................................................................................................ 25

STOP ......................................................................................................................................... 25

GOTO LABEL ............................................................................................................................... 25

RETURN EXPRESSION ................................................................................................................. 25

FOR COUNTER = EXP TO EXP STEP EXP NEXT COUNTER ........................................................... 25

FOR EACH ITEM IN OBJECT ......................................................................................................... 26

WHILE EXPRESSION / EXIT WHILE ................................................................................................. 27

REM ........................................................................................................................................... 27

IF EXPRESSION THEN STATEMENTS [ELSE STATEMENTS] ............................................................. 27

BLOCK IF, ELSEIF, THEN, ENDIF ............................................................................................. 27

PRINT [#OUTPUT_OBJECT], [@LOCATION], ITEM LIST ................................................................... 29

FUNCTION([PARAMETER AS TYPE, …]) AS TYPE / END FUNCTION ................................................... 30

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Brightsign BrightScript 2 Reference Guide Bedienungsanleitung Seite 2