wiki.techinc.nl/math/util.ml
Lee Daniel Crocker d82c14fb4f Initial revision
2003-04-14 23:10:40 +00:00

17 lines
485 B
OCaml

let mapjoin f l = (List.fold_left (fun a b -> a ^ (f b)) "" l)
let mapjoine e f = function
[] -> ""
| h::t -> (List.fold_left (fun a b -> a ^ e ^ (f b)) (f h) t)
exception FileAlreadyExists
let open_out_unless_exists path =
if Sys.file_exists path
then raise FileAlreadyExists
else open_out path
let run_in_other_directory tmppath cmd =
let prevdir = Sys.getcwd () in(
Sys.chdir tmppath;
let retval = Sys.command cmd in
(Sys.chdir prevdir; retval)
)