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Function std.ascii.isAlpha
Prototype
bool isAlpha( dchar c ) pure nothrow @nogc @safe;
Parameters
Name | Description |
---|---|
c | The character to test. |
Returns
Whether
is an ASCII letter (A..Z, a..z).
c
Example
assert( isAlpha('A')); assert(!isAlpha('1')); assert(!isAlpha('#')); // N.B.: does not return true for non-ASCII Unicode alphabetic characters: assert(!isAlpha('รก'));
Authors
Walter Bright and Jonathan M Davis