(* File to be processed by wlex, not ocamllex ! *) classes encoding_error xml_char blank lowercase uppercase ascii_digit "#_<>=.,:;+-*/@&{}[]()|?`\"\\\'!" unicode_base_char unicode_ideographic unicode_combining_char unicode_digit unicode_extender { (* the new Lexing lib in OCaml 3.07 has a different handling of locations. The following functions simulate the old behavior *) let lexeme_start lexbuf = lexbuf.Lexing.lex_abs_pos + lexbuf.Lexing.lex_start_pos let lexeme_end lexbuf = lexbuf.Lexing.lex_abs_pos + lexbuf.Lexing.lex_curr_pos let keywords = Hashtbl.create 17 let in_comment = ref false let error = Location.raise_loc exception Illegal_character of char exception Unterminated_comment exception Unterminated_string exception Unterminated_string_in_comment (* Buffer for string literals (always encoded in UTF8). *) let string_buff = Buffer.create 1024 let store_ascii = Buffer.add_char string_buff let store_char = Buffer.add_string string_buff let store_code = Encodings.Utf8.store string_buff let get_stored_string () = let s = Buffer.contents string_buff in Buffer.clear string_buff; s let store_special = function | 'n' -> store_ascii '\n' | 'r' -> store_ascii '\r' | 't' -> store_ascii '\t' | c -> raise (Illegal_character '\\') let string_start_pos = ref 0;; let comment_start_pos : int list ref = ref [];; let decimal_char s = int_of_string (String.sub s 1 (String.length s - 2)) let hexa_digit = function | '0'..'9' as c -> (Char.code c) - (Char.code '0') | 'a'..'f' as c -> (Char.code c) - (Char.code 'a') + 10 | _ -> failwith "Invalid hexadecimal digit" (* TODO: error loc *) let hexa_char s = let rec aux i accu = if i = String.length s - 1 then accu else aux (succ i) (accu * 16 + hexa_digit s.[i]) in aux 0 0 } let letter = lowercase | uppercase | unicode_base_char | unicode_ideographic let digit = ascii_digit | unicode_digit let character = [ ^ encoding_error ] let ncname_char = letter | digit | [ ".-_" ] | unicode_combining_char | unicode_extender let ncname = (letter | '_' ) ncname_char* let qname = (ncname ':')? ncname rule token = parse blank+ { token engine lexbuf } | qname { let s = Lexing.lexeme lexbuf in if Hashtbl.mem keywords s then "",s else "IDENT",s } | ncname ":*" { let s = Lexing.lexeme lexbuf in let s = String.sub s 0 (String.length s - 2) in "ANY_IN_NS", s } | ".:*" { "ANY_IN_NS", "" } | '-'? ascii_digit+ { "INT",Lexing.lexeme lexbuf } | [ "<>=.,:;+-*/@&{}[]()|?`!" ] | "->" | "::" | ";;" | "--" | ":=" | "\\" | "++" | "{|" | "|}" | "<=" | ">=" | "<<" | ">>" | ["?+*"] "?" | "#" { "",Lexing.lexeme lexbuf } | "#" ncname { "DIRECTIVE",Lexing.lexeme lexbuf } | '"' | "'" { let string_start = lexeme_start lexbuf in string_start_pos := string_start; let double_quote = Lexing.lexeme_char lexbuf 0 = '"' in string (Lexing.lexeme lexbuf) engine lexbuf; lexbuf.Lexing.lex_start_pos <- string_start - lexbuf.Lexing.lex_abs_pos; (if double_quote then "STRING2" else "STRING1"), (get_stored_string()) } | "(*" { comment_start_pos := [lexeme_start lexbuf]; in_comment := true; comment engine lexbuf; in_comment := false; token engine lexbuf } | eof { "EOI","" } | _ { error (lexeme_start lexbuf) (lexeme_end lexbuf) (Illegal_character ((Lexing.lexeme lexbuf).[0])) } and comment = parse "(*" { comment_start_pos := lexeme_start lexbuf :: !comment_start_pos; comment engine lexbuf; } | "*)" { comment_start_pos := List.tl !comment_start_pos; if !comment_start_pos <> [] then comment engine lexbuf; } | '"' | "'" { string_start_pos := lexeme_start lexbuf; Buffer.clear string_buff; let ender = Lexing.lexeme lexbuf in (try string ender engine lexbuf with Location.Location (_,_,Unterminated_string) -> let st = List.hd !comment_start_pos in error st (st+2) Unterminated_string_in_comment); Buffer.clear string_buff; comment engine lexbuf } | eof { let st = List.hd !comment_start_pos in error st (st+2) Unterminated_comment } | _ { comment engine lexbuf } and string ender = parse | '"' | "'" { let c = Lexing.lexeme lexbuf in if c = ender then () else (store_char (Lexing.lexeme lexbuf); string ender engine lexbuf) } | '\\' ['\\' '"' '\''] { store_ascii (Lexing.lexeme_char lexbuf 1); string ender engine lexbuf } | '\\' lowercase { let c = Lexing.lexeme_char lexbuf 1 in if c = 'x' then parse_hexa_char engine lexbuf else store_special c; string ender engine lexbuf } | '\\' ascii_digit+ ';' { store_code (decimal_char (Lexing.lexeme lexbuf)); string ender engine lexbuf } | '\\' { error (lexeme_start lexbuf) (lexeme_end lexbuf) (Illegal_character '\\') } | eof { error !string_start_pos (!string_start_pos+1) Unterminated_string } | _ { store_code (Char.code (Lexing.lexeme_char lexbuf 0)); (* Adapt when source is UTF8 *) string ender engine lexbuf } and parse_hexa_char = parse | (ascii_digit|lowercase)+ ';' { store_code (hexa_char (Lexing.lexeme lexbuf)) } | _ { error (lexeme_start lexbuf) (lexeme_end lexbuf) (Illegal_character '\\') } { let delta_loc = ref 0 let set_delta_loc dl = delta_loc := dl (* For synchronization on errors in the toplevel ... *) (* Issue: file inclusion *) let lexbuf = ref None let last_tok = ref ("","") let lexer_func_of_wlex lexfun lexengine cs = let dl = !delta_loc in delta_loc := 0; let lb = Lexing.from_function (fun s n -> try s.[0] <- Stream.next cs; 1 with Stream.Failure -> 0) in lexbuf := Some lb; let next () = let tok = lexfun lexengine lb in let loc = (lexeme_start lb + dl, lexeme_end lb + dl) in last_tok := tok; (tok, loc) in Token.make_stream_and_location next let register_kw (s1,s2) = if s1 = "" then match s2.[0] with | 'a' .. 'z' when not (Hashtbl.mem keywords s2) -> Hashtbl.add keywords s2 () | _ -> () let lexer lexfun lexengine = { Token.tok_func = lexer_func_of_wlex lexfun lexengine; Token.tok_using = register_kw; Token.tok_removing = (fun _ -> ()); Token.tok_match = Token.default_match; Token.tok_text = Token.lexer_text; Token.tok_comm = None; } let classes = let c i = (i,i) in let i ch1 ch2 = (Char.code ch1, Char.code ch2) in [ unicode_base_char, [ 0x00C0,0x00D6; 0x00D8,0x00F6; 0x00F8,0x00FF; 0x0100,0x0131; 0x0134,0x013E; 0x0141,0x0148; 0x014A,0x017E; 0x0180,0x01C3; 0x01CD,0x01F0; 0x01F4,0x01F5; 0x01FA,0x0217; 0x0250,0x02A8; 0x02BB,0x02C1; 0x0386,0x0386; 0x0388,0x038A; 0x038C,0x038C; 0x038E,0x03A1; 0x03A3,0x03CE; 0x03D0,0x03D6; 0x03DA,0x03DA; 0x03DC,0x03DC; 0x03DE,0x03DE; 0x03E0,0x03E0; 0x03E2,0x03F3; 0x0401,0x040C; 0x040E,0x044F; 0x0451,0x045C; 0x045E,0x0481; 0x0490,0x04C4; 0x04C7,0x04C8; 0x04CB,0x04CC; 0x04D0,0x04EB; 0x04EE,0x04F5; 0x04F8,0x04F9; 0x0531,0x0556; 0x0559,0x0559; 0x0561,0x0586; 0x05D0,0x05EA; 0x05F0,0x05F2; 0x0621,0x063A; 0x0641,0x064A; 0x0671,0x06B7; 0x06BA,0x06BE; 0x06C0,0x06CE; 0x06D0,0x06D3; 0x06D5,0x06D5; 0x06E5,0x06E6; 0x0905,0x0939; 0x093D,0x093D; 0x0958,0x0961; 0x0985,0x098C; 0x098F,0x0990; 0x0993,0x09A8; 0x09AA,0x09B0; 0x09B2,0x09B2; 0x09B6,0x09B9; 0x09DC,0x09DD; 0x09DF,0x09E1; 0x09F0,0x09F1; 0x0A05,0x0A0A; 0x0A0F,0x0A10; 0x0A13,0x0A28; 0x0A2A,0x0A30; 0x0A32,0x0A33; 0x0A35,0x0A36; 0x0A38,0x0A39; 0x0A59,0x0A5C; 0x0A5E,0x0A5E; 0x0A72,0x0A74; 0x0A85,0x0A8B; 0x0A8D,0x0A8D; 0x0A8F,0x0A91; 0x0A93,0x0AA8; 0x0AAA,0x0AB0; 0x0AB2,0x0AB3; 0x0AB5,0x0AB9; 0x0ABD,0x0ABD; 0x0AE0,0x0AE0; 0x0B05,0x0B0C; 0x0B0F,0x0B10; 0x0B13,0x0B28; 0x0B2A,0x0B30; 0x0B32,0x0B33; 0x0B36,0x0B39; 0x0B3D,0x0B3D; 0x0B5C,0x0B5D; 0x0B5F,0x0B61; 0x0B85,0x0B8A; 0x0B8E,0x0B90; 0x0B92,0x0B95; 0x0B99,0x0B9A; 0x0B9C,0x0B9C; 0x0B9E,0x0B9F; 0x0BA3,0x0BA4; 0x0BA8,0x0BAA; 0x0BAE,0x0BB5; 0x0BB7,0x0BB9; 0x0C05,0x0C0C; 0x0C0E,0x0C10; 0x0C12,0x0C28; 0x0C2A,0x0C33; 0x0C35,0x0C39; 0x0C60,0x0C61; 0x0C85,0x0C8C; 0x0C8E,0x0C90; 0x0C92,0x0CA8; 0x0CAA,0x0CB3; 0x0CB5,0x0CB9; 0x0CDE,0x0CDE; 0x0CE0,0x0CE1; 0x0D05,0x0D0C; 0x0D0E,0x0D10; 0x0D12,0x0D28; 0x0D2A,0x0D39; 0x0D60,0x0D61; 0x0E01,0x0E2E; 0x0E30,0x0E30; 0x0E32,0x0E33; 0x0E40,0x0E45; 0x0E81,0x0E82; 0x0E84,0x0E84; 0x0E87,0x0E88; 0x0E8A,0x0E8A; 0x0E8D,0x0E8D; 0x0E94,0x0E97; 0x0E99,0x0E9F; 0x0EA1,0x0EA3; 0x0EA5,0x0EA5; 0x0EA7,0x0EA7; 0x0EAA,0x0EAB; 0x0EAD,0x0EAE; 0x0EB0,0x0EB0; 0x0EB2,0x0EB3; 0x0EBD,0x0EBD; 0x0EC0,0x0EC4; 0x0F40,0x0F47; 0x0F49,0x0F69; 0x10A0,0x10C5; 0x10D0,0x10F6; 0x1100,0x1100; 0x1102,0x1103; 0x1105,0x1107; 0x1109,0x1109; 0x110B,0x110C; 0x110E,0x1112; 0x113C,0x113C; 0x113E,0x113E; 0x1140,0x1140; 0x114C,0x114C; 0x114E,0x114E; 0x1150,0x1150; 0x1154,0x1155; 0x1159,0x1159; 0x115F,0x1161; 0x1163,0x1163; 0x1165,0x1165; 0x1167,0x1167; 0x1169,0x1169; 0x116D,0x116E; 0x1172,0x1173; 0x1175,0x1175; 0x119E,0x119E; 0x11A8,0x11A8; 0x11AB,0x11AB; 0x11AE,0x11AF; 0x11B7,0x11B8; 0x11BA,0x11BA; 0x11BC,0x11C2; 0x11EB,0x11EB; 0x11F0,0x11F0; 0x11F9,0x11F9; 0x1E00,0x1E9B; 0x1EA0,0x1EF9; 0x1F00,0x1F15; 0x1F18,0x1F1D; 0x1F20,0x1F45; 0x1F48,0x1F4D; 0x1F50,0x1F57; 0x1F59,0x1F59; 0x1F5B,0x1F5B; 0x1F5D,0x1F5D; 0x1F5F,0x1F7D; 0x1F80,0x1FB4; 0x1FB6,0x1FBC; 0x1FBE,0x1FBE; 0x1FC2,0x1FC4; 0x1FC6,0x1FCC; 0x1FD0,0x1FD3; 0x1FD6,0x1FDB; 0x1FE0,0x1FEC; 0x1FF2,0x1FF4; 0x1FF6,0x1FFC; 0x2126,0x2126; 0x212A,0x212B; 0x212E,0x212E; 0x2180,0x2182; 0x3041,0x3094; 0x30A1,0x30FA; 0x3105,0x312C; (* 0xAC00,0xD7A3 *) ]; unicode_ideographic, [ 0x3007,0x3007; 0x3021,0x3029 (* 0x4E00-0x9FA5 *) ]; unicode_combining_char, [ 0x0300,0x0345; 0x0360,0x0361; 0x0483,0x0486; 0x0591,0x05A1; 0x05A3,0x05B9; 0x05BB,0x05BD; 0x05BF,0x05BF; 0x05C1,0x05C2; 0x05C4,0x05C4; 0x064B,0x0652; 0x0670,0x0670; 0x06D6,0x06DC; 0x06DD,0x06DF; 0x06E0,0x06E4; 0x06E7,0x06E8; 0x06EA,0x06ED; 0x0901,0x0903; 0x093C,0x093C; 0x093E,0x094C; 0x094D,0x094D; 0x0951,0x0954; 0x0962,0x0963; 0x0981,0x0983; 0x09BC,0x09BC; 0x09BE,0x09BE; 0x09BF,0x09BF; 0x09C0,0x09C4; 0x09C7,0x09C8; 0x09CB,0x09CD; 0x09D7,0x09D7; 0x09E2,0x09E3; 0x0A02,0x0A02; 0x0A3C,0x0A3C; 0x0A3E,0x0A3E; 0x0A3F,0x0A3F; 0x0A40,0x0A42; 0x0A47,0x0A48; 0x0A4B,0x0A4D; 0x0A70,0x0A71; 0x0A81,0x0A83; 0x0ABC,0x0ABC; 0x0ABE,0x0AC5; 0x0AC7,0x0AC9; 0x0ACB,0x0ACD; 0x0B01,0x0B03; 0x0B3C,0x0B3C; 0x0B3E,0x0B43; 0x0B47,0x0B48; 0x0B4B,0x0B4D; 0x0B56,0x0B57; 0x0B82,0x0B83; 0x0BBE,0x0BC2; 0x0BC6,0x0BC8; 0x0BCA,0x0BCD; 0x0BD7,0x0BD7; 0x0C01,0x0C03; 0x0C3E,0x0C44; 0x0C46,0x0C48; 0x0C4A,0x0C4D; 0x0C55,0x0C56; 0x0C82,0x0C83; 0x0CBE,0x0CC4; 0x0CC6,0x0CC8; 0x0CCA,0x0CCD; 0x0CD5,0x0CD6; 0x0D02,0x0D03; 0x0D3E,0x0D43; 0x0D46,0x0D48; 0x0D4A,0x0D4D; 0x0D57,0x0D57; 0x0E31,0x0E31; 0x0E34,0x0E3A; 0x0E47,0x0E4E; 0x0EB1,0x0EB1; 0x0EB4,0x0EB9; 0x0EBB,0x0EBC; 0x0EC8,0x0ECD; 0x0F18,0x0F19; 0x0F35,0x0F35; 0x0F37,0x0F37; 0x0F39,0x0F39; 0x0F3E,0x0F3E; 0x0F3F,0x0F3F; 0x0F71,0x0F84; 0x0F86,0x0F8B; 0x0F90,0x0F95; 0x0F97,0x0F97; 0x0F99,0x0FAD; 0x0FB1,0x0FB7; 0x0FB9,0x0FB9; 0x20D0,0x20DC; 0x20E1,0x20E1; 0x302A,0x302F; 0x3099,0x3099; 0x309A,0x309A ]; unicode_digit, [ 0x0660,0x0669; 0x06F0,0x06F9; 0x0966,0x096F; 0x09E6,0x09EF; 0x0A66,0x0A6F; 0x0AE6,0x0AEF; 0x0B66,0x0B6F; 0x0BE7,0x0BEF; 0x0C66,0x0C6F; 0x0CE6,0x0CEF; 0x0D66,0x0D6F; 0x0E50,0x0E59; 0x0ED0,0x0ED9; 0x0F20,0x0F29 ]; unicode_extender, [ 0x00B7,0x00B7; 0x02D0,0x02D1; 0x0387,0x0387; 0x0640,0x0640; 0x0E46,0x0E46; 0x0EC6,0x0EC6; 0x3005,0x3005; 0x3031,0x3035; 0x309D,0x309E; 0x30FC,0x30FE ]; ascii_digit, [ i '0' '9']; lowercase, [i 'a' 'z']; uppercase, [i 'A' 'Z']; blank, [c 8; c 9; c 10; c 13; c 32] ] let table = assert(nb_classes <= 256); let v = String.make 0x312d (Char.chr encoding_error) in let fill_int c (i, j) = String.fill v i (j-i+1) c in let fill_class (c, l) = List.iter (fill_int (Char.chr c)) l in let fill_char (ch, cl) = v.[ch] <- Char.chr cl in List.iter fill_class classes; List.iter fill_char one_char_classes; v let utf8_engine = Lex_engines.engine_tiny_utf8 table (fun code -> if code >= 0x4E00 && code <= 0x9FA5 then unicode_ideographic else if code >= 0xAC00 && code <= 0xD7A3 then unicode_base_char else if code <= 0xD7FF || (code >= 0xE000 && code <= 0xFFFD) || (code >= 0x10000 && code <= 0x10FFFF) then xml_char else encoding_error) let latin1_engine = Lex_engines.engine_tiny_8bit table }