alpha-char-p (ANSI and GNU Common Lisp Document)

Next: alphanumericp, Previous: characterp, Up: Characters Dictionary

#### 13.2.8 alpha-char-p [Function]

`alpha-char-p` character ⇒ generalized-boolean

#### Arguments and Values::

character—a character.

generalized-boolean—a generalized boolean.

#### Description::

Returns true if character is an alphabetic_1 character; otherwise, returns false.

#### Examples::

     (alpha-char-p #\a) ⇒  true
     (alpha-char-p #\5) ⇒  false
     (alpha-char-p #\Newline) ⇒  false
     ;; This next example presupposes an implementation
     ;; in which #\\alpha is a defined character.
     (alpha-char-p #\\alpha) ⇒  implementation-dependent

#### Affected By::

None. (In particular, the results of this predicate are independent of any special syntax which might have been enabled in the current readtable.)

#### Exceptional Situations::

Should signal an error of type type-error if character is not a character.

#### See Also::

alphanumericp , Documentation of Implementation-Defined Scripts