[Caml-list] Better option to read a file

["Agustín Valverde" <a_valverde@ctima.uma.es>]

Hi

In a program  I need to read the input data from a file and I have 
written several options. I want to obtain the string of characters from 
a text file and I don't know what is the better option. Among others, I 
have written the following:

First option:

let leer_file fl =
      let form = ref "" in
      let arch = open_in fl in
      let long = in_channel_length arch in
      form := String.create (long-1);
      really_input arch (!form) 0 (long-1);
      close_in arch;
      !form;;

Second:

let rec unir c ac = unir ac^(Char.escaped c);;

let leer2 fl =
      let form = ref "" in
      let c = ref '-' in
      let arch = open_in fl in
      (try
        (while true do (c := input_char arch); (if !c != '\n' then (form 
:= unir !c !form) else ()) done)
      with End_of_file -> close_in arch);
      !form;;

I also have a parser to convert the string, could I to improve these 
functions merging them with the parser in some way?

Thanks for your help

Agustín Valverde
Department of Applied Mathematics
University of Malaga, Spain

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