Movatterモバイル変換

Syntax:

upper-case-pcharacter =>generalized-boolean

lower-case-pcharacter =>generalized-boolean

both-case-pcharacter =>generalized-boolean

Arguments and Values:

character---acharacter.

generalized-boolean---ageneralized boolean.

Description:

These functions test the case of a givencharacter.

upper-case-p returnstrue ifcharacter is anuppercasecharacter; otherwise, returnsfalse.

lower-case-p returnstrue ifcharacter is alowercasecharacter; otherwise, returnsfalse.

both-case-p returnstrue ifcharacter is acharacter withcase; otherwise, returnsfalse.

Examples:

 (upper-case-p #\A) =>true (upper-case-p #\a) =>false (both-case-p #\a) =>true (both-case-p #\5) =>false (lower-case-p #\5) =>false (upper-case-p #\5) =>false ;; This next example presupposes an implementation  ;; in which #\Bell is an implementation-defined character. (lower-case-p #\Bell) =>false

Side Effects: None.

Affected By: None.

Exceptional Situations:

Should signal an error oftypetype-error ifcharacter is not acharacter.

See Also:

char-upcase,char-downcase,Section 13.1.4.3 (Characters With Case),Section 13.1.10 (Documentation of Implementation-Defined Scripts)

Notes: None.