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fixed recursion on non-directory-entries (FIFO, Dev, ..) #23

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fixed recursion on non-directory-entries (FIFO, Dev, ..) #23

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16 changes: 8 additions & 8 deletions code/lists-and-patterns/main.topscript
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Original file line number Diff line number Diff line change
Expand Up @@ -173,20 +173,20 @@ List.append [1;2;3] [4;5;6];;
List.concat [[1;2];[3;4;5];[6];[]];;
#part 35
let rec ls_rec s =
if Sys.is_file_exn ~follow_symlinks:true s
then [s]
else
Sys.ls_dir s
if Sys.is_directory_exn ~follow_symlinks:true s
then Sys.ls_dir s
|> List.map ~f:(fun sub -> ls_rec (s ^/ sub))
|> List.concat
else
[s]
;;
#part 36
let rec ls_rec s =
if Sys.is_file_exn ~follow_symlinks:true s
then [s]
else
Sys.ls_dir s
if Sys.is_directory_exn ~follow_symlinks:true s
then Sys.ls_dir s
|> List.concat_map ~f:(fun sub -> ls_rec (s ^/ sub))
else
[s]
;;
#part 37
let rec length = function
Expand Down