let regexp alpha = [ 'a' - 'z' 'A' - 'Z' ]
let regexp digit = [ '0' - '9' ]
let regexp blank = [ ' ' '\t' '\n' ]
-
+let regexp paren = [ '(' '[' '{' ')' ']' '}' ]
+let regexp implicit = '?'
+let regexp symbol_char =
+ [^ 'a' - 'z' 'A' - 'Z' '0' - '9'
+ ' ' '\t' '\n'
+ '\\' '(' '[' '{' ')' ']' '}' '?'
+ ]
+let regexp dust = "%%" [^ '\n']* '\n'
+let regexp comment_char = [^ "*)" ]
+let regexp note = "(*" comment_char* "*)"
+let regexp commentbegin = "(**"
+let regexp commentend = "**)"
let regexp blanks = blank+
let regexp num = digit+
let regexp tex_token = '\\' alpha+
-let regexp symbol = [^ 'a' - 'z' 'A' - 'Z' '0' - '9' ' ' '\t' '\n' ]
-let regexp ident_cont = alpha | num | '_'
+let regexp symbol = symbol_char+
+let regexp ident_cont = alpha | num | '_' | '\''
let regexp ident_cont' = ident_cont | tex_token
let regexp ident = (alpha ident_cont*) | ('_' ident_cont+)
let regexp ident' = ((alpha | tex_token) ident_cont'*) | ('_' ident_cont'+)
-let regexp lparen = [ '(' '[' '{' ]
-let regexp rparen = [ ')' ']' '}' ]
-let regexp meta = '?' num
+let regexp meta = implicit num
+let regexp qstring = '"' [^ '"']* '"'
+let regexp uri =
+ ("cic:/" | "theory:/") (* schema *)
+ ident ('/' ident)* (* path *)
+ ('.' ident)+ (* ext *)
+ ("#xpointer(" num ('/' num)+ ")")? (* xpointer *)
(* let regexp catchall = .* *)
let keywords = Hashtbl.create 17
let _ =
List.iter (fun keyword -> Hashtbl.add keywords keyword ("", keyword))
- [ "Prop"; "Type"; "Set"; "let"; "rec"; "using"; "match"; "with" ]
+ [ "Prop"; "Type"; "Set"; "let"; "Let"; "rec"; "using"; "match"; "with";
+ "in"; "and" ]
let error lexbuf msg =
raise (Error (Ulexing.lexeme_start lexbuf, Ulexing.lexeme_end lexbuf, msg))
let error_at_end lexbuf msg =
raise (Error (Ulexing.lexeme_end lexbuf, Ulexing.lexeme_end lexbuf, msg))
-let return lexbuf token = (token, Ulexing.loc lexbuf)
+let return lexbuf token =
+ let flocation_begin =
+ { Lexing.pos_fname = ""; Lexing.pos_lnum = -1; Lexing.pos_bol = -1;
+ Lexing.pos_cnum = Ulexing.lexeme_start lexbuf }
+ in
+ let flocation_end =
+ { flocation_begin with Lexing.pos_cnum = Ulexing.lexeme_end lexbuf }
+ in
+ (token, (flocation_begin, flocation_end))
(*
let parse_ext_ident ident =
and token = lexer
*)
-let rec token = lexer
- | blanks -> token lexbuf
+
+let remove_quotes s = String.sub s 1 (String.length s - 2)
+
+let rec token comments = lexer
+ | blanks -> token comments lexbuf
+ | uri -> return lexbuf ("URI", Ulexing.utf8_lexeme lexbuf)
| ident ->
let lexeme = Ulexing.utf8_lexeme lexbuf in
(try
return lexbuf (Hashtbl.find keywords lexeme)
with Not_found -> return lexbuf ("IDENT", lexeme))
| num -> return lexbuf ("NUM", Ulexing.utf8_lexeme lexbuf)
- | lparen -> return lexbuf ("LPAREN", Ulexing.utf8_lexeme lexbuf)
- | rparen -> return lexbuf ("RPAREN", Ulexing.utf8_lexeme lexbuf)
+ | paren -> return lexbuf ("PAREN", Ulexing.utf8_lexeme lexbuf)
| meta -> return lexbuf ("META", Ulexing.utf8_lexeme lexbuf)
+ | implicit -> return lexbuf ("IMPLICIT", Ulexing.utf8_lexeme lexbuf)
+ | qstring ->
+ return lexbuf ("QSTRING", remove_quotes (Ulexing.utf8_lexeme lexbuf))
| symbol -> return lexbuf ("SYMBOL", Ulexing.utf8_lexeme lexbuf)
| tex_token ->
let macro =
Ulexing.utf8_sub_lexeme lexbuf 1 (Ulexing.lexeme_length lexbuf - 1)
in
(try
- return lexbuf ("SYMBOL", Macro.expand macro)
- with Macro.Macro_not_found _ ->
+ return lexbuf ("SYMBOL", Utf8Macro.expand macro)
+ with Utf8Macro.Macro_not_found _ ->
return lexbuf ("SYMBOL", Ulexing.utf8_lexeme lexbuf))
+ | dust -> token comments lexbuf
+ | note ->
+ (*if comments then*)
+ let comment =
+ Ulexing.utf8_sub_lexeme lexbuf 2 (Ulexing.lexeme_length lexbuf - 2)
+ in
+ return lexbuf ("NOTE", comment)
+ (*else
+ token comments lexbuf*)
+ | commentbegin -> return lexbuf ("BEGINCOMMENT","")
+ | commentend -> return lexbuf ("ENDCOMMENT","")
| eof -> return lexbuf ("EOI", "")
| _ -> error lexbuf "Invalid character"
-let tok_func stream =
+let tok_func comments stream =
let lexbuf = Ulexing.from_utf8_stream stream in
- Token.make_stream_and_location
+ Token.make_stream_and_flocation
(fun () ->
try
- token lexbuf
+ token comments lexbuf
with
| Ulexing.Error -> error_at_end lexbuf "Unexpected character"
| Ulexing.InvalidCodepoint i -> error_at_end lexbuf "Invalid code point")
-let lex =
- {
- Token.tok_func = tok_func;
+let cic_lexer ?(comments = false) () =
+ {
+ Token.tok_func = tok_func comments;
Token.tok_using = (fun _ -> ());
Token.tok_removing = (fun _ -> ());
Token.tok_match = Token.default_match;
Token.tok_text = Token.lexer_text;
Token.tok_comm = None;
}
+