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 Mrtn Dk | In Guile scheme, which command do you recommend for reading a line of text (from a file stored on a fixed disk, for instance)? | 11:24:12 |
 hideyo | (read-line) | 11:25:05 |
| hideyo | * (read-line)
from (ice-9 rdelim) module | 11:26:11 |
| 5 Jul 2020 |
|  sfield joined the room. | 06:44:27 |
| Mrtn Dk | In reply to @hideyo:matrix.org
(read-line)
from (ice-9 rdelim) module Thank you! That works great! | 12:58:01 |
| Mrtn Dk | I have a small problem though, albeit I worked around the problem for now. The problem is, I get a #\return at the end of each line I read, if the file happens to be stored in "DOS" format. | 12:59:02 |
| Mrtn Dk | I tried (read-line <port> 'split), but it only splits the newline from the payload. | 13:00:18 |
| Mrtn Dk | A workaround is of cause very simple, for instance (let* ((lin (read-line port)) (len (string-length lin))) (set! lin (string-filter (lambda (c) (not (char=? c #\return)))) ;; or similar. | 13:03:39 |
| Mrtn Dk | (sorry for all the errors, but you get the point, I hope). | 13:05:50 |
| Mrtn Dk | (string-filter (λ (c) (not (char=? c #\return))) (car (read-line (open-file "filename" "r") 'split))) | 13:06:52 |
|  walter changed their profile picture. | 16:26:06 |
| hideyo | In reply to @mrtn:hackeruniverse.dk
I have a small problem though, albeit I worked around the problem for now. The problem is, I get a #\return at the end of each line I read, if the file happens to be stored in "DOS" format. interesting. (read-line) is sort of standard for scheme, so we should maybe check how other implementation handle this (if #\return is omitted or not) and if it's different, maybe submit a bug report | 18:08:52 |
| Mrtn Dk | hideyo: Can you reproduce the error on your system? | 19:51:51 |
| Mrtn Dk | hideyo: | 19:52:06 |
| hideyo | In reply to @mrtn:hackeruniverse.dk
hideyo: Can you reproduce the error on your system? yes, and I tried it in guile, chez scheme (get-line) and racket. It works the same in every implementation, so this is not an error | 22:20:36 |
| 6 Jul 2020 |
| Mrtn Dk | In reply to @hideyo:matrix.org
yes, and I tried it in guile, chez scheme (get-line) and racket. It works the same in every implementation, so this is not an error How do you mean it is not an error? As in, you got a different result, or as in the last character of the string is supposed to be a #\return if reading a DOS-file ? | 02:07:12 |
| hideyo |
<@hideyo:matrix.org> yes, and I tried it in guile, chez scheme (get-line) and racket. It works the same in every implementation, so this is not an error
How do you mean it is not an error? As in, you got a different result, or as in the last character of the string is supposed to be a #\return if reading a DOS-file ?
I got same result so \return is supposed to be the last character | 06:39:30 |
| Mrtn Dk | In reply to @hideyo:matrix.org
<@hideyo:matrix.org> yes, and I tried it in guile, chez scheme (get-line) and racket. It works the same in every implementation, so this is not an error
How do you mean it is not an error? As in, you got a different result, or as in the last character of the string is supposed to be a #\return if reading a DOS-file ?
I got same result so \return is supposed to be the last character 😎👍 | 06:51:35 |
