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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * Copyright INRIA, CNRS and contributors *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
open Common
let norm_char_latin1 c = match Char.uppercase_ascii c with
| '\192'..'\198' -> 'A'
| '\199' -> 'C'
| '\200'..'\203' -> 'E'
| '\204'..'\207' -> 'I'
| '\209' -> 'N'
| '\210'..'\214' -> 'O'
| '\217'..'\220' -> 'U'
| '\221' -> 'Y'
| c -> c
let norm_char_utf8 c = Char.uppercase_ascii c
let norm_char c =
if !prefs.encoding.utf8 then norm_char_utf8 c else
if !prefs.encoding.latin1 then norm_char_latin1 c else
Char.uppercase_ascii c
let norm_string = String.map (fun s -> norm_char s)
let compare_char c1 c2 = match norm_char c1, norm_char c2 with
| ('A'..'Z' as c1), ('A'..'Z' as c2) -> compare c1 c2
| 'A'..'Z', _ -> -1
| _, 'A'..'Z' -> 1
| '_', _ -> -1
| _, '_' -> 1
| c1, c2 -> compare c1 c2
let compare_string s1 s2 =
let n1 = String.length s1 in
let n2 = String.length s2 in
let rec cmp i =
if i == n1 || i == n2 then
n1 - n2
else
let c = compare_char s1.[i] s2.[i] in
if c == 0 then cmp (succ i) else c
in
cmp 0
|
