Moved qparser and syntax in the library folder

1 files changed, 0 insertions, 212 deletions

diff --git a/lib/lexer.ml b/lib/lexer.ml
deleted file mode 100644
index c643577..0000000
--- a/lib/lexer.ml
+++ /dev/null
@@ -1,212 +0,0 @@
-(** 
-    Lexer using sedlex
- *)
-
-open Tokens
-
-exception UnclosedQuote of { content : string; line : int }
-exception LexError of Lexing.position * string
-exception EOF
-
-let pp_pos out { Lexing.pos_lnum; pos_cnum; pos_bol; _ } =
-  Format.fprintf out "line %d:%d" pos_lnum (pos_cnum - pos_bol)
-
-(* Extract the location name from the pattern *)
-let location_name = Str.regexp {|.* \(.*\)|}
-
-let build_ident buffer =
-  let id = Lexbuf.content buffer |> String.uppercase_ascii in
-  try
-    let value = Hashtbl.find Idents.keyword_table id in
-    let _ =
-      match value with IF | ELIF -> Lexbuf.incr_level buffer | _ -> ()
-    in
-    value
-  with Not_found -> IDENT id
-
-let wait_balance : (Buffer.t -> Lexbuf.t -> 'a) -> Lexbuf.t -> 'a =
- fun rule lexbuf ->
-  let _, position = Lexbuf.positions lexbuf in
-  Lexbuf.set_start_position lexbuf position;
-
-  try[@warning "-52"]
-    let token = rule (Buffer.create 256) lexbuf in
-    token
-  with Failure "lexing: empty token" ->
-    let position, _ = Lexbuf.positions lexbuf in
-    let line = position.Lexing.pos_lnum and content = Lexbuf.content lexbuf in
-    (raise (UnclosedQuote { line; content }) [@warning "+52"])
-
-let space = [%sedlex.regexp? ' ' | '\t']
-let eol = [%sedlex.regexp? '\r' | '\n' | "\r\n"]
-let coma = [%sedlex.regexp? ',']
-let digit = [%sedlex.regexp? '0' .. '9']
-let letters = [%sedlex.regexp? 'a' .. 'z' | 'A' .. 'Z' | '_']
-let spaces = [%sedlex.regexp? Plus space]
-let ident = [%sedlex.regexp? ('$' | letters), Star (digit | letters)]
-let location_ident = [%sedlex.regexp? letters | digit]
-let location_prefix = [%sedlex.regexp? '!' | '$' | '#' | '^']
-let location = [%sedlex.regexp? Opt location_prefix, Plus location_ident]
-
-let rec read_long_string level buf buffer =
-  let lexbuf = Lexbuf.buffer buffer in
-  match%sedlex lexbuf with
-  | '{' ->
-      Buffer.add_string buf (Sedlexing.Utf8.lexeme lexbuf);
-      read_long_string (level + 1) buf buffer
-  | '}' -> (
-      match level with
-      | 0 -> Buffer.contents buf
-      | _ ->
-          Buffer.add_string buf (Sedlexing.Utf8.lexeme lexbuf);
-          read_long_string (level - 1) buf buffer)
-  | eol ->
-      Buffer.add_string buf (Lexbuf.content buffer);
-      read_long_string level buf buffer
-  | any ->
-      Buffer.add_string buf (Lexbuf.content buffer);
-      read_long_string level buf buffer
-  | _ -> raise Not_found
-
-let rec read_dquoted_string buf buffer =
-  let lexbuf = Lexbuf.buffer buffer in
-  match%sedlex lexbuf with
-  | "\"\"" ->
-      Buffer.add_char buf '"';
-      read_dquoted_string buf buffer
-  | '"' -> Buffer.contents buf
-  | any ->
-      Buffer.add_string buf (Sedlexing.Utf8.lexeme lexbuf);
-      read_dquoted_string buf buffer
-  | _ -> raise Not_found
-
-let rec read_quoted_string buf buffer =
-  let lexbuf = Lexbuf.buffer buffer in
-  match%sedlex lexbuf with
-  | "''" ->
-      Buffer.add_char buf '\'';
-      read_quoted_string buf buffer
-  | '\'' -> Buffer.contents buf
-  | eol ->
-      Buffer.add_string buf (Lexbuf.content buffer);
-      read_quoted_string buf buffer
-  | any ->
-      Buffer.add_string buf (Lexbuf.content buffer);
-      read_quoted_string buf buffer
-  | _ -> raise Not_found
-
-let rec skip_comment buffer =
-  let lexbuf = Lexbuf.buffer buffer in
-  match%sedlex lexbuf with
-  | '{' ->
-      let _ = wait_balance (read_long_string 0) buffer in
-      skip_comment buffer
-  | '\'' ->
-      let _ = wait_balance read_quoted_string buffer in
-      skip_comment buffer
-  | '"' ->
-      let _ = wait_balance read_dquoted_string buffer in
-      skip_comment buffer
-  | eol ->
-      (* Ugly hack used in order to put the eol in the front of the next
-         parsing. *)
-      Sedlexing.rollback lexbuf;
-      COMMENT
-  | any -> skip_comment buffer
-  | _ -> raise Not_found
-
-(** Main lexer *)
-let rec token : Lexbuf.t -> token =
- fun buffer ->
-  let lexbuf = Lexbuf.buffer buffer in
-  match%sedlex lexbuf with
-  | 0Xfeff ->
-      (* Ignore the BOM *)
-      token buffer
-  | '#', Star space, location ->
-      (* Extract the location name *)
-      let ident = Lexbuf.content buffer in
-      let () =
-        match Str.string_match location_name ident 0 with
-        | false -> ()
-        | true -> Sedlexing.set_filename lexbuf (Str.matched_group 1 ident)
-      in
-
-      (* Restart the line number (new location here) *)
-      Lexbuf.start buffer;
-
-      LOCATION_START ident
-  | '-', Plus '-', Star (Sub (any, ('\r' | '\n'))) ->
-      Lexbuf.reset_level buffer;
-      LOCATION_END
-  | Plus digit -> INTEGER (Lexbuf.content buffer)
-  | '+' -> PLUS
-  | '-' -> MINUS
-  | "+=" -> INCR
-  | "-=" -> DECR
-  | "*=" -> MULT_EQUAL
-  | '/' -> DIV
-  | '*' -> STAR
-  | ':' ->
-      (* We are leaving the block, the comment will be handled again *)
-      Lexbuf.decr_level buffer;
-
-      COLUMN
-  | '[' -> L_BRACKET
-  | ']' -> R_BRACKET
-  | '(' ->
-      Lexbuf.incr_level buffer;
-      L_PAREN
-  | ')' ->
-      Lexbuf.decr_level buffer;
-      R_PAREN
-  | '<' -> LT
-  | '>' -> GT
-  | coma -> COMA
-  | '=' ->
-      Lexbuf.incr_level buffer;
-      EQUAL
-  | ident -> build_ident buffer
-  | eol ->
-      Lexbuf.reset_level buffer;
-      EOL
-  | '&' ->
-      Lexbuf.reset_level buffer;
-      AMPERSAND
-  | '!' -> if Lexbuf.level buffer > 0 then EXCLAMATION else skip_comment buffer
-  | spaces -> token buffer
-  | '\'' -> LITERAL (wait_balance read_quoted_string buffer)
-  | '"' -> LITERAL (wait_balance read_dquoted_string buffer)
-  | '{' -> LITERAL (wait_balance (read_long_string 0) buffer)
-  | eof -> raise EOF
-  | _ ->
-      let position = fst @@ Sedlexing.lexing_positions lexbuf in
-      let tok = Lexbuf.content buffer in
-
-      let msg =
-        Format.asprintf "Unexpected character %S at %a" tok pp_pos position
-      in
-
-      raise @@ LexError (position, msg)
-
-let rec discard buffer =
-  let lexbuf = Lexbuf.buffer buffer in
-  match%sedlex lexbuf with
-  | '\'' ->
-      ignore (wait_balance read_quoted_string buffer);
-      discard buffer
-  | '"' ->
-      ignore (wait_balance read_dquoted_string buffer);
-      discard buffer
-  | '{' ->
-      ignore (wait_balance (read_long_string 0) buffer);
-      discard buffer
-  | eof -> raise EOF
-  | '-', Plus '-', Star (Sub (any, ('\r' | '\n'))) ->
-      Lexbuf.reset_level buffer;
-      ()
-  | '!' ->
-      ignore @@ skip_comment buffer;
-      discard buffer
-  | any -> discard buffer
-  | _ -> raise EOF