Re: [racket-users] Naive question on how to capitalize only the first word of a string

Wow. In addition to getting my question answered, I learned about 6 other things. Thank you so much, everyone! Glenn -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an

Re: [racket-users] Naive question on how to capitalize only the first word of a string

Here's another: (define/contract (ucfirst str) (-> string? string?) (match (regexp-match #px"^([^a-z]*)(.)(.+)" str) [(list _ prefix first-letter rest-of-string) (~a prefix (string-upcase first-letter) rest-of-string)])) -> (ucfirst "cat dog") "Cat dog" -> (ucfirst " Cat dog") "

Re: [racket-users] Naive question on how to capitalize only the first word of a string

Robby's answer was more idiomatic Racket, and mine was idomatic-Scheme-and-also-OK-Racket, by habit. :) I'd suggest reading both implementations. As you learn more Racket, you'll start to get a feel for your preferred linguistic style(s), and you'll notice different people have a lot more

Re: [racket-users] Naive question on how to capitalize only the first word of a string

On Mon, Jun 19, 2017 at 8:12 PM, Glenn Hoetker wrote: > I'm quite new to Racket/LISP, so I hope this isn't breathtakingly obvious. > Can someone please tell me the best way to capitalize just the first word in > a multiword string. So, given the string "it was a dark and

Re: [racket-users] Naive question on how to capitalize only the first word of a string

Here's another way to implement it. Fun. :) #lang racket (provide (contract-out [cap-first (-> string? string?)])) (define (cap-first s) (apply string (for/list ([c (in-string s)] [i (in-naturals)]) (if (= i 0) (char-upcase c) c (module+ test

Re: [racket-users] Naive question on how to capitalize only the first word of a string

Welcome to Racket! One intro-to-Racket-compared-to-some-other-languages thing I'll just say upfront is that you don't want to modify the string itself, not that you asked to. (Not all Racket strings are mutable. Plus, mutating introduces a bunch more possibilities for bugs, and for string

Re: [racket-users] Naive question on how to capitalize only the first word of a string

I don't think there's a library function that does what you want, so you'd need to define your own. Here's one way to do it: (define (capitalize-first-letter str) (cond [(non-empty-string? str) (define first-letter-str (substring str 0 1)) (define rest-str (substring

[racket-users] Naive question on how to capitalize only the first word of a string

I'm quite new to Racket/LISP, so I hope this isn't breathtakingly obvious. Can someone please tell me the best way to capitalize just the first word in a multiword string. So, given the string "it was a dark and stormy night", I would like to get "It was a dark and stormy night". I see