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John.Cowan wrote: > I think this SRFI should have char-titlecase and string-titlecase > functions. The former maps a lowercase or uppercase character into > its titlecase equivalent, and leaves all other characters alone. > The latter titlecases its first character and lowercases all the rest; > it's trivial to define string-titlecase given char-titlecase, but it's > IMHO worth having for symmetry. String-titlecase is part of SRFI 13, although with different semantics from what you describe. For example: (string-titlecase "--capitalize tHIS sentence.") => "--Capitalize This Sentence." string-titlecase s [start end] -> string string-titlecase! s [start end] -> unspecified "For every character c in the selected range of s, if c is preceded by a cased character, it is downcased; otherwise it is titlecased." David