let regexp number = xml_digit+
+ (* ZACK: breaks unicode's binder followed by an ascii letter without blank *)
+(* let regexp ident_letter = xml_letter *)
+
+let regexp ident_letter = [ 'a' - 'z' 'A' - 'Z' ]
+
let regexp ident_decoration = '\'' | '!' | '?' | '`'
-let regexp ident_cont = xml_letter | xml_digit | '_'
-let regexp ident = xml_letter ident_cont* ident_decoration*
+let regexp ident_cont = ident_letter | xml_digit | '_'
+let regexp ident = ident_letter ident_cont* ident_decoration*
let regexp tex_token = '\\' ident
-let regexp keyword = '"' ident '"'
+let regexp delim_begin = "\\["
+let regexp delim_end = "\\]"
+
+let regexp qkeyword = "'" ident "'"
let regexp implicit = '?'
+let regexp placeholder = '%'
let regexp meta = implicit number
+let regexp csymbol = '\'' ident
+
+let regexp begin_group = "@{" | "${"
+let regexp end_group = '}'
+let regexp wildcard = "$_"
+let regexp ast_ident = "@" ident
+let regexp ast_csymbol = "@" csymbol
+let regexp meta_ident = "$" ident
+let regexp meta_anonymous = "$_"
+let regexp qstring = '"' [^ '"']* '"'
+
+let regexp begincomment = "(**" xml_blank
+let regexp endcomment = "*)"
+let regexp comment_char = [^'*'] | '*'[^')']
+let regexp note = "(*" ([^'*'] | "**") comment_char* "*)"
+
+let level1_layouts =
+ [ "sub"; "sup";
+ "below"; "above";
+ "over"; "atop"; "frac";
+ "sqrt"; "root"
+ ]
+
+let level1_keywords =
+ [ "hbox"; "hvbox"; "hovbox"; "vbox";
+ "break";
+ "list0"; "list1"; "sep";
+ "opt";
+ "term"; "ident"; "number"
+ ] @ level1_layouts
+
+let level2_meta_keywords =
+ [ "if"; "then"; "else";
+ "fold"; "left"; "right"; "rec";
+ "fail";
+ "default";
+ "anonymous"; "ident"; "number"; "term"; "fresh"
+ ]
+
+ (* (string, unit) Hashtbl.t, to exploit multiple bindings *)
+let level2_ast_keywords = Hashtbl.create 23
+let _ =
+ List.iter (fun k -> Hashtbl.add level2_ast_keywords k ())
+ [ "CProp"; "Prop"; "Type"; "Set"; "let"; "rec"; "corec"; "using"; "match";
+ "with"; "in"; "and"; "to"; "as"; "on"; "names" ]
+
+let add_level2_ast_keyword k = Hashtbl.add level2_ast_keywords k ()
+let remove_level2_ast_keyword k = Hashtbl.remove level2_ast_keywords k
+
let regexp uri =
("cic:/" | "theory:/") (* schema *)
ident ('/' ident)* (* path *)
let begin_cnum, end_cnum = Ulexing.loc lexbuf in
raise (Error (begin_cnum, end_cnum, msg))
-let return lexbuf token =
- let begin_cnum, end_cnum = Ulexing.loc lexbuf in
+let return_with_loc token begin_cnum end_cnum =
(* TODO handle line/column numbers *)
let flocation_begin =
{ Lexing.pos_fname = "";
let flocation_end = { flocation_begin with Lexing.pos_cnum = end_cnum } in
(token, (flocation_begin, flocation_end))
+let return lexbuf token =
+ let begin_cnum, end_cnum = Ulexing.loc lexbuf in
+ return_with_loc token begin_cnum end_cnum
+
let return_lexeme lexbuf name = return lexbuf (name, Ulexing.utf8_lexeme lexbuf)
let remove_quotes s = String.sub s 1 (String.length s - 2)
("SYMBOL", Utf8Macro.expand macro)
with Utf8Macro.Macro_not_found _ -> "SYMBOL", Ulexing.utf8_lexeme lexbuf
-let keyword lexbuf = "KEYWORD", remove_quotes (Ulexing.utf8_lexeme lexbuf)
+let remove_quotes s = String.sub s 1 (String.length s - 2)
+let remove_left_quote s = String.sub s 1 (String.length s - 1)
-let rec token = lexer
- | xml_blank+ -> token lexbuf
+let rec level2_pattern_token_group counter buffer = lexer
+ | end_group ->
+ if (counter > 0) then
+ Buffer.add_string buffer (Ulexing.utf8_lexeme lexbuf) ;
+ snd (Ulexing.loc lexbuf)
+ | begin_group ->
+ Buffer.add_string buffer (Ulexing.utf8_lexeme lexbuf) ;
+ ignore (level2_pattern_token_group (counter + 1) buffer lexbuf) ;
+ level2_pattern_token_group counter buffer lexbuf
+ | _ ->
+ Buffer.add_string buffer (Ulexing.utf8_lexeme lexbuf) ;
+ level2_pattern_token_group counter buffer lexbuf
+
+let read_unparsed_group token_name lexbuf =
+ let buffer = Buffer.create 16 in
+ let begin_cnum, _ = Ulexing.loc lexbuf in
+ let end_cnum = level2_pattern_token_group 0 buffer lexbuf in
+ return_with_loc (token_name, Buffer.contents buffer) begin_cnum end_cnum
+
+let rec level2_meta_token = lexer
+ | xml_blank+ -> level2_meta_token lexbuf
+ | ident ->
+ let s = Ulexing.utf8_lexeme lexbuf in
+ begin
+ if List.mem s level2_meta_keywords then
+ return lexbuf ("", s)
+ else
+ return lexbuf ("IDENT", s)
+ end
+ | "@{" -> read_unparsed_group "UNPARSED_AST" lexbuf
+ | ast_ident ->
+ return lexbuf ("UNPARSED_AST",
+ remove_left_quote (Ulexing.utf8_lexeme lexbuf))
+ | ast_csymbol ->
+ return lexbuf ("UNPARSED_AST",
+ remove_left_quote (Ulexing.utf8_lexeme lexbuf))
+ | eof -> return lexbuf ("EOI", "")
+
+let rec level2_ast_token = lexer
+ | xml_blank+ -> level2_ast_token lexbuf
| meta -> return lexbuf ("META", Ulexing.utf8_lexeme lexbuf)
- | implicit -> return lexbuf ("IMPLICIT", Ulexing.utf8_lexeme lexbuf)
- | ident -> return lexbuf ("IDENT", Ulexing.utf8_lexeme lexbuf)
+ | implicit -> return lexbuf ("IMPLICIT", "")
+ | placeholder -> return lexbuf ("PLACEHOLDER", "")
+ | ident ->
+ let lexeme = Ulexing.utf8_lexeme lexbuf in
+ if Hashtbl.mem level2_ast_keywords lexeme then
+ return lexbuf ("", lexeme)
+ else
+ return lexbuf ("IDENT", lexeme)
| number -> return lexbuf ("NUMBER", Ulexing.utf8_lexeme lexbuf)
- | keyword -> return lexbuf (keyword lexbuf)
| tex_token -> return lexbuf (expand_macro lexbuf)
| uri -> return lexbuf ("URI", Ulexing.utf8_lexeme lexbuf)
+ | qstring ->
+ return lexbuf ("QSTRING", remove_quotes (Ulexing.utf8_lexeme lexbuf))
+ | csymbol ->
+ return lexbuf ("CSYMBOL", remove_left_quote (Ulexing.utf8_lexeme lexbuf))
+ | "${" -> read_unparsed_group "UNPARSED_META" lexbuf
+ | "@{" -> read_unparsed_group "UNPARSED_AST" lexbuf
+ | '(' -> return lexbuf ("LPAREN", "")
+ | ')' -> return lexbuf ("RPAREN", "")
+ | meta_ident ->
+ return lexbuf ("UNPARSED_META",
+ remove_left_quote (Ulexing.utf8_lexeme lexbuf))
+ | meta_anonymous -> return lexbuf ("UNPARSED_META", "anonymous")
+ | note ->
+ let comment =
+ Ulexing.utf8_sub_lexeme lexbuf 2 (Ulexing.lexeme_length lexbuf - 4)
+ in
+ return lexbuf ("NOTE", comment)
+ | begincomment -> return lexbuf ("BEGINCOMMENT","")
+ | endcomment -> return lexbuf ("ENDCOMMENT","")
+ | eof -> return lexbuf ("EOI", "")
+ | _ -> return lexbuf ("SYMBOL", Ulexing.utf8_lexeme lexbuf)
+
+let rec level1_pattern_token = lexer
+ | xml_blank+ -> level1_pattern_token lexbuf
+ | number -> return lexbuf ("NUMBER", Ulexing.utf8_lexeme lexbuf)
+ | ident ->
+ let s = Ulexing.utf8_lexeme lexbuf in
+ begin
+ if List.mem s level1_keywords then
+ return lexbuf ("", s)
+ else
+ return lexbuf ("IDENT", s)
+ end
+ | tex_token -> return lexbuf (expand_macro lexbuf)
+ | qkeyword ->
+ return lexbuf ("QKEYWORD", remove_quotes (Ulexing.utf8_lexeme lexbuf))
+ | '(' -> return lexbuf ("LPAREN", "")
+ | ')' -> return lexbuf ("RPAREN", "")
| eof -> return lexbuf ("EOI", "")
| _ -> return lexbuf ("SYMBOL", Ulexing.utf8_lexeme lexbuf)
(* API implementation *)
-let notation_lexer = mk_lexer token
+let level1_pattern_lexer = mk_lexer level1_pattern_token
+let level2_ast_lexer = mk_lexer level2_ast_token
+let level2_meta_lexer = mk_lexer level2_meta_token
projects / helm.git / blobdiff