[Chicken-users] Unit ports documentation needs an example or two for non-gods
(port-map FN THUNK) where does the port go? I was sort of hoping for something like this to work: csi (define inp (open-input-file ~/.bashrc)) csi (define a (port-map inp read-line)) csi (close-input-file inp) but it took guessing to figure out the intended usage. How about some trivial examples in the docs? By trial and error I figured this out: (define a (with-input-from-file ~/.bashrc (lambda ()(port-map (lambda (x) x) read-line That is ugly. I just want to get a file into a list: E.g. in Ruby: foo=`cat ~/.bashrc` port-fold doesn't improve it: (define b (with-input-from-file ~/.bashrc (lambda ()(reverse (port-fold cons '() read-line) Is there an egg or unit for down-n-dirty, get-the-job-done-yesterday, screw the right thing programming? (use ducttape) (define a (file-list ~/.bashrc)) Such a unit or egg deserves mention on the front page. I dug though the docs and never did find an easy way to do what I want. ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Unit ports documentation needs an example or two for non-gods
I'm personally not aware of any eggs that specifically match your request. But there are these eggs, which I tend to use more often than others: Misc Macros http://wiki.call-cc.org/eggref/4/miscmacros More Macros http://wiki.call-cc.org/eggref/4/moremacros lookup-table http://wiki.call-cc.org/eggref/4/lookup-table Sequences http://wiki.call-cc.org/eggref/4/sequences SRFI-99 http://wiki.call-cc.org/eggref/4/srfi-99 Less general, but still often useful: SRFI-45 http://wiki.call-cc.org/eggref/4/srfi-45 lazy-seq http://wiki.call-cc.org/eggref/4/lazy-seq -Dan On Wed, May 23, 2012 at 6:35 AM, Matt Welland estifo...@gmail.com wrote: (port-map FN THUNK) where does the port go? I was sort of hoping for something like this to work: csi (define inp (open-input-file ~/.bashrc)) csi (define a (port-map inp read-line)) csi (close-input-file inp) but it took guessing to figure out the intended usage. How about some trivial examples in the docs? By trial and error I figured this out: (define a (with-input-from-file ~/.bashrc (lambda ()(port-map (lambda (x) x) read-line That is ugly. I just want to get a file into a list: E.g. in Ruby: foo=`cat ~/.bashrc` port-fold doesn't improve it: (define b (with-input-from-file ~/.bashrc (lambda ()(reverse (port-fold cons '() read-line) Is there an egg or unit for down-n-dirty, get-the-job-done-yesterday, screw the right thing programming? (use ducttape) (define a (file-list ~/.bashrc)) Such a unit or egg deserves mention on the front page. I dug though the docs and never did find an easy way to do what I want. ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Unit ports documentation needs an example or two for non-gods
You can do that with (call-with-input-file PATH read-lines) or (read-lines my-file.txt) The latter comes from this page http://wiki.call-cc.org/chicken-for-python-programmers which documents a few down-and-dirty idioms. Kevin ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Unit ports documentation needs an example or two for non-gods
Thanks Kevin and Daniel, great hints. Much appreciated. On Wed, May 23, 2012 at 7:48 AM, Kevin Wortman kwort...@gmail.com wrote: You can do that with (call-with-input-file PATH read-lines) or (read-lines my-file.txt) The latter comes from this page http://wiki.call-cc.org/chicken-for-python-programmers which documents a few down-and-dirty idioms. Kevin ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users
