Iscsymf - Texas Instruments TI-89 Developer's Manual

Appendix C: Macros — Character Classification / Conversion

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.
c
Inputs:
Non-zero if c is a valid first character in a symbol, zero otherwise.
Outputs:
Assumptions: Access_AMS_Global_Variables is defined.
Side Effects: None
AMS 2.00 or above.
Availability:
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);
TI-89 / TI-92 Plus Developer Guide
— Character to test.
Not for Distribution
1279
Beta Version January 26, 2001