Remote-processing BASIC 52 Uživatelský manuál stáhnout pdf (Strana 122)

RPBASIC-52 PROGRAMMING GUIDE

2-103

STR

Syntax: A = STR(function,$(n)[,$(n)]))

Where: function = 0 to 14, specifies string function to perform as described below.

Function: Performs string m anipulation, described below, pe r function number.

Mode: Command,Run

Use: A = STR(0,$(0))

Cards: RPC-320, RPC-330

DESCRIPTION

There are 11 string manipulation functions using STR. Each function is described below.

NOTE: Most of these functions require a string variable (such as $(0)) rather than a quoted string. Functions

which will allow quoted strings offer an alternate syntax immediately below the first one.

Syntax: A = STR(0,$(n))

Description:

Returns num ber of characters in a string. When string is not set equal to som ething, or the string num ber is

out of bounds, erroneous data is returned. Length limit is 254 characters.

Example:

10 STRING 100,20

20 $(0)=" 123456789"

30 PRINT STR(0,$(0))

run

Syntax: A = STR(1,$(n))

Description:

Convert letters A - Z to lower case. Variable A returns length of the string.

Example: 10 STRING 100,20

20 $(0)="Some UPPER case"

30 A = STR(1,$(0))

40 PRINT $(0)

run

some upper case

Syntax: A = STR(2,$(n))

Description:

Convert letters a - z to upper case. Variable A returns length of the string.

Example: 10 STRING 100,20

20 $(1) = "Some lower case."

30 A = STR(2,$(1))

40 PRINT $(1)

run

SOME LOWER CASE.

1 2 ... 117 118 119 120 121 122 123 124 125 126 127 ... 162 163

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Remote-processing BASIC 52 Uživatelský manuál Strana 122