FreeCalypso > hg > themwi-interim
diff libutil/extdigits.c @ 1:b161dbfffdaa
include, libutil: port from old ThemWi
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 08 Jun 2024 23:06:53 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libutil/extdigits.c Sat Jun 08 23:06:53 2024 +0000 @@ -0,0 +1,29 @@ +/* + * The library function implemented in this module checks "extended" + * number digits, i.e., checks whether or not a given character + * makes a valid "extended" number digit. + */ + +is_valid_ext_digit(c) +{ + switch (c) { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case '*': + case '#': + case 'a': + case 'b': + case 'c': + return(1); + default: + return(0); + } +}