Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Ke.ywords
MID$ Function
MID$(string, start [,length]>
Returns a substring of a string.
Length is the number of characters in the substring. It must be
in the range
1 to 255.
Start specifies the position in the string from which to get the
substring.
If you omit
length or if there are fewer than that number of char-
acters
to the right of start position, BASIC returns all characters
to the right
of the character at the start position including that
character
at start.
If start is greater than number of characters in string, BASIC re-
turns a null string.
Examples
10 A$ = "WEATHERFORD"
20 PRINT MIDSCAS, 3, 2)
prints AT
F$ = MID$<A$, 3)
puts ATHERFORD into F$.
Sample Program
200 INPUT "AREA CODE AND NUMBER (NNN-NNN-NNNN)";
PH$
210 EX$ = MID$CPH$, 5, 3)
220 PRINT "NUMBER IS IN THE " EX$ " EXCHANGE."
The first 3 digits of a local phone number are sometimes called
the exchange
of the number. This program looks at a complete
phone number (area code, exchange, last
4 digits) and picks out
the exchange.
219

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200