Appendix C: Macros — Character Classification / Conversion
1279
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
iscsymf
Declaration:
BYTE
iscsymf
(BYTE
c
)
Category(ies):
Character Classification / Conversion
Description:
Return non-zero (true) if the given character is a valid character to start a
symbol.
Inputs:
c
— Character to test.
Outputs:
Non-zero if
c
is a valid first character in a symbol, zero otherwise.
Assumptions:
Access_AMS_Global_Variables is defined.
Side Effects:
None
Availability:
AMS 2.00 or above.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: iscsym
Example:
In VAR-LINK, if a key is pressed and that key can start a symbol then the
current position is moved to the symbol starting with that character as
shown in the following code fragment.
if (Key <= 0xFF && iscsymf(Key))
Key = tolower(Key);
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