ocaml/asmcomp/emitaux.ml

56 lines
1.9 KiB
OCaml

(***********************************************************************)
(* *)
(* Caml Special Light *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1995 Institut National de Recherche en Informatique et *)
(* Automatique. Distributed only by permission. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(* Common functions for emitting assembly code *)
let output_channel = ref stdout
let emit_string s = output_string !output_channel s
let emit_int n = output_string !output_channel (string_of_int n)
let emit_char c = output_char !output_channel c
let emit_printf fmt =
Printf.fprintf !output_channel fmt
let emit_symbol esc s =
for i = 0 to String.length s - 1 do
let c = s.[i] in
match c with
'A'..'Z' | 'a'..'z' | '0'..'9' | '_' ->
output_char !output_channel c
| _ ->
Printf.fprintf !output_channel "%c%02x" esc (Char.code c)
done
let emit_string_literal s =
let last_was_escape = ref false in
emit_string "\"";
for i = 0 to String.length s - 1 do
let c = s.[i] in
if c >= '0' & c <= '9' then
if !last_was_escape
then Printf.fprintf !output_channel "\\%o" (Char.code c)
else output_char !output_channel c
else if c >= ' ' & c <= '~' & c <> '"' & c <> '\\' then begin
output_char !output_channel c;
last_was_escape := false
end else begin
Printf.fprintf !output_channel "\\%o" (Char.code c);
last_was_escape := true
end
done;
emit_string "\""