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Re: Re: [Caml-list] ExtLib1.0b released: msg#00015

Subject: Re: Re: [Caml-list] ExtLib1.0b released
> (** Some useful operators on int and double references. *)
> let (+=) r i = r := !r + i; !r
> let (-=) r i = r := !r - i; !r
> let ( *=) r i = r := !r * i; !r
> let (/=) r i = r := !r / i; !r
> let (+.=) r d = r := !r +. d; !r
> let (-.=) r d = r := !r -. d; !r
> let ( *.=) r d = r := !r *. d; !r
> let (/.=) r d = r := !r /. d; !r

Theses are convenient for C users.
Why not, but this is matter of taste, not really a additional functionality

> (** eg. homedir // "file". *)
> let (//) = Filename.concat
>
> (** list |> List.iter (fun ... -> ...) *)
> let (|>) a f = f a

Same for theses

> (** The 'lost' conversion function from pervasives. *)
> let string_of_char c =
>   let s = String.create 1 in
>   s.[0] <- c;
>   s

open ExtString;
String.of_char is doing the job.

[...]
> (** Return true if a string starts with another string. *)
> let starts_with str prefix =
>   let len = String.length prefix in
>   (String.sub str 0 len) = prefix
>
> (** Return true if a string ends with another string. *)
> let ends_with str suffix =
>   let len = String.length str in
>   let sflen = String.length suffix in
>   (String.sub str (len-sflen) sflen) = suffix

ends_with is already in ExtString.
I will add starts_with (sounds logical to have both).
BTW your implementation of starts_with raise an exception if  strlen(prefix)
> strlen(str) !

> let readdir_all dirname =
> let is_dir path =
> let is_dir_lstat path =
> let copy_file src dest =
> let rec delete_directory path =

Theses are looking useful but not complete, I think that we need a module
full a functions for file/directory access, creating , copying and moving.
If s/one is willing to write it....

> let buffer_of_chan chan =

We already have this one :
Std.input_all : in_channel -> string

Nicolas Cannasse



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