string-upcase
string &key start end ⇒ cased-string
string-downcase
string &key start end ⇒ cased-string
string-capitalize
string &key start end ⇒ cased-string
nstring-upcase
string &key start end ⇒ string
nstring-downcase
string &key start end ⇒ string
nstring-capitalize
string &key start end ⇒ string
string—a string designator. For nstring-upcase, nstring-downcase, and nstring-capitalize, the string designator must be a string.
start, end—bounding index designators of string. The defaults for start and end are 0 and nil, respectively.
cased-string—a string.
string-upcase, string-downcase, string-capitalize, nstring-upcase, nstring-downcase, nstring-capitalize change the case of the subsequence of string bounded by start and end as follows:
For string-upcase, string-downcase, and string-capitalize, string is not modified. However, if no characters in string require conversion, the result may be either string or a copy of it, at the implementation's discretion.
(string-upcase "abcde") ⇒ "ABCDE" (string-upcase "Dr. Livingston, I presume?") ⇒ "DR. LIVINGSTON, I PRESUME?" (string-upcase "Dr. Livingston, I presume?" :start 6 :end 10) ⇒ "Dr. LiVINGston, I presume?" (string-downcase "Dr. Livingston, I presume?") ⇒ "dr. livingston, i presume?" (string-capitalize "elm 13c arthur;fig don't") ⇒ "Elm 13c Arthur;Fig Don'T" (string-capitalize " hello ") ⇒ " Hello " (string-capitalize "occlUDeD cASEmenTs FOreSTAll iNADVertent DEFenestraTION") ⇒ "Occluded Casements Forestall Inadvertent Defenestration" (string-capitalize 'kludgy-hash-search) ⇒ "Kludgy-Hash-Search" (string-capitalize "DON'T!") ⇒ "Don'T!" ;not "Don't!" (string-capitalize "pipe 13a, foo16c") ⇒ "Pipe 13a, Foo16c" (setq str (copy-seq "0123ABCD890a")) ⇒ "0123ABCD890a" (nstring-downcase str :start 5 :end 7) ⇒ "0123AbcD890a" str ⇒ "0123AbcD890a"
nstring-upcase, nstring-downcase, and nstring-capitalize modify string as appropriate rather than constructing a new string.
char-upcase , char-downcase
The result is always of the same length as string.