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4MELFA-BASIC IV
4.3.6 Types of characters that can be used in program
The character which can be used within the program is shown in
on the characters that can be used in the program name, variable name and label name. The characters
that can be used are indicated by O, those that cannot be used are indicated by X, and those that can be
used with restrictions are indicated by
Table 4-4:List of characters that can be used
Class
Alphabetic
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
characters
a b c d e f g h i j k l m n o p q r s t u v w x y z
Numerals
0 1 2 3 4 5 6 7 8 9
Symbols
" ' & ( ) * + - . , / : ; = < > ? @ ` [ \ ] ^ { } ~ |
! # $ %
_(Underscore)
Spaces
Space character
Note1) Alphanumerics in variable names and label names in the program are automatically converted into
uppercase characters.
Note2) Only alphabetical characters can be used as the first character of the variable name. Numerals can
be used as the second and succeeding characters.
Note3) They can be used as the second and succeeding characters. Any variable having an underscore
(_) as the second character becomes an external variable.
Note4) If an underscore (_) is used in a label name, start with an asterisk (*) followed by alphabetic
character "L."
Refer to
Page 126, "(1) Program name"
for detail of variable names, and refer to
4-129 Detailed specifications of MELFA-BASIC V
.
@
Available characters
for detail of program names, refer to
Page 128, "4.3.5 Label"
Table
4-4. However, there are restrictions
Program name
Variable name
O
O
Note1)
X
@
Note2)
O
@
X
X
X
Available for
type
specification
Note3)
X
@
X
X
Page 134, "4.3.15 Variables"
for detail of label names.
Label name
O
Note 1)
@
O
X
X
Note4)
@
X
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