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Chapter

BASIC

Commands

Example

S1$ = TRIM_LEFT$(" Hello World!")

' S1$ = "Hello World!"

TRIM_RIGHT$

Purpose

To return a copy of a string with trailing blank spaces stripped away.

Syntax

A$ = TRIM_RIGHT$(X$)

Remarks

"A$" is a string variable to be assigned to the result.

"X$" is a string variable that may contain some space characters at the end.

Example

S2$ = TRIM_RIGHT$("Hello World! ")

' S2$ = "Hello World!"

5.4.6 Converting for Strings

Several commands are available for converting strings to uppercase or lowercase letters, as

well as converting strings to numbers, and vice versa.

ASC

Purpose

To return the decimal value for the ASCII code for the first character of a given

string.

Syntax

A% = ASC(X$)

Remarks

"A%" is an integer variable to be assigned to the result.

"X$" is a string variable, consisting of characters.

Example

A% = ASC("John Thomas") ' A% = 74

CHR$

Purpose

To return the character for a given ASCII value.

Syntax

A% = CHR$(N%)

Remarks

"A$" is a string variable to be assigned to the result.

"N%" is a numeric expression in the range of 0 to 255.

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Metrologic IS1000 Series Guía de usuario Pagina 43