Laconic -> Ur

1 files changed, 0 insertions, 353 deletions

diff --git a/src/lacweb.lex b/src/lacweb.lex
deleted file mode 100644
index e593c5fe..00000000
--- a/src/lacweb.lex
+++ /dev/null
@@ -1,353 +0,0 @@
-(* Copyright (c) 2008, Adam Chlipala
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * - Redistributions of source code must retain the above copyright notice,
- *   this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright notice,
- *   this list of conditions and the following disclaimer in the documentation
- *   and/or other materials provided with the distribution.
- * - The names of contributors may not be used to endorse or promote products
- *   derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *)
-
-(* Lexing info for Laconic/Web programs *)
-
-type pos = int
-type svalue = Tokens.svalue
-type ('a,'b) token = ('a,'b) Tokens.token
-type lexresult = (svalue,pos) Tokens.token
-
-local
-  val commentLevel = ref 0
-  val commentPos = ref 0
-in
-  fun enterComment pos =
-      (if !commentLevel = 0 then
-           commentPos := pos
-       else
-           ();
-       commentLevel := !commentLevel + 1)
-    
-  fun exitComment () =
-      (ignore (commentLevel := !commentLevel - 1);
-       !commentLevel = 0)
-
-  fun eof () = 
-    let 
-      val pos = ErrorMsg.lastLineStart ()
-    in
-      if !commentLevel > 0 then
-          ErrorMsg.errorAt' (!commentPos, !commentPos) "Unterminated comment"
-      else
-          ();
-      Tokens.EOF (pos, pos) 
-    end
-end
-
-val strEnder = ref #"\""
-val str = ref ([] : char list)
-val strStart = ref 0
-
-local
-    val initSig = ref false
-    val offset = ref 0
-in
-
-fun initialSig () = initSig := true
-
-fun pos yypos = yypos - !offset
-
-fun newline yypos =
-    if !initSig then
-        (initSig := false;
-         offset := yypos + 1)
-    else
-        ErrorMsg.newline (pos yypos)
-
-end
-
-val xmlTag = ref ([] : string list)
-val xmlString = ref true
-val braceLevels = ref ([] : ((unit -> unit) * int) list)
-
-fun pushLevel s = braceLevels := (s, 1) :: (!braceLevels)
-
-fun enterBrace () =
-    case !braceLevels of
-	(s, i) :: rest => braceLevels := (s, i+1) :: rest
-      | _ => ()
-
-fun exitBrace () =
-    case !braceLevels of
-	(s, i) :: rest =>
-	if i = 1 then
-	    (braceLevels := rest;
-	     s ())
-	else
-	    braceLevels := (s, i-1) :: rest
-      | _ => ()
-
-fun initialize () = (xmlTag := [];
-		     xmlString := false)
-
-
-%%
-%header (functor LacwebLexFn(structure Tokens : Lacweb_TOKENS));
-%full
-%s COMMENT STRING XML XMLTAG;
-
-id = [a-z_][A-Za-z0-9_']*;
-cid = [A-Z][A-Za-z0-9_']*;
-ws = [\ \t\012];
-intconst = [0-9]+;
-realconst = [0-9]+\.[0-9]*;
-notags = [^<{\n]+;
-
-%%
-
-<INITIAL> \n          => (newline yypos;
-                          continue ());
-<COMMENT> \n          => (newline yypos;
-                          continue ());
-<XMLTAG> \n           => (newline yypos;
-                          continue ());
-<XML> \n              => (newline yypos;
-                          Tokens.NOTAGS (yytext, yypos, yypos + size yytext));
-
-<INITIAL> {ws}+       => (lex ());
-
-<INITIAL> "(*"        => (YYBEGIN COMMENT;
-                          enterComment (pos yypos);
-                          continue ());
-<INITIAL> "*)"        => (ErrorMsg.errorAt' (pos yypos, pos yypos) "Unbalanced comments";
-			  continue ());
-
-<COMMENT> "(*"        => (enterComment (pos yypos);
-                          continue ());
-<COMMENT> "*)"        => (if exitComment () then YYBEGIN INITIAL else ();
-			  continue ());
-
-<INITIAL> "\""        => (YYBEGIN STRING; strEnder := #"\""; strStart := pos yypos; str := []; continue());
-<INITIAL> "'"         => (YYBEGIN STRING; strEnder := #"'"; strStart := pos yypos; str := []; continue());
-<STRING> "\\\""       => (str := #"\"" :: !str; continue());
-<STRING> "\\'"        => (str := #"'" :: !str; continue());
-<STRING> "\n"         => (newline yypos;
-			  str := #"\n" :: !str; continue());
-<STRING> .            => (let
-                              val ch = String.sub (yytext, 0)
-                          in
-                              if ch = !strEnder then
-                                  (if !xmlString then
-			               (xmlString := false; YYBEGIN XMLTAG)
-			           else
-			               YYBEGIN INITIAL;
-			           Tokens.STRING (String.implode (List.rev (!str)), !strStart, pos yypos + 1))
-                              else
-                                  (str := ch :: !str;
-                                   continue ())
-                          end);
-
-<INITIAL> "<" {id} ">"=> (let
-			      val tag = String.substring (yytext, 1, size yytext - 2)
-			  in
-			      YYBEGIN XML;
-			      xmlTag := tag :: (!xmlTag);
-			      Tokens.XML_BEGIN (tag, yypos, yypos + size yytext)
-			  end);
-<XML> "</" {id} ">"   => (let
-			      val id = String.substring (yytext, 2, size yytext - 3)
-			  in
-			      case !xmlTag of
-			          id' :: rest =>
-			          if id = id' then
-				      (YYBEGIN INITIAL;
-				       xmlTag := rest;
-				       Tokens.XML_END (yypos, yypos + size yytext))
-			          else
-				      Tokens.END_TAG (id, yypos, yypos + size yytext)
-			        | _ => 
-			          Tokens.END_TAG (id, yypos, yypos + size yytext)
-			  end);
-
-<XML> "<" {id}        => (YYBEGIN XMLTAG;
-			  Tokens.BEGIN_TAG (String.extract (yytext, 1, NONE),
-					    yypos, yypos + size yytext));
-
-<XMLTAG> "/"          => (Tokens.DIVIDE (yypos, yypos + size yytext));
-<XMLTAG> ">"          => (YYBEGIN XML;
-			  Tokens.GT (yypos, yypos + size yytext));
-
-<XMLTAG> {ws}+        => (lex ());
-
-<XMLTAG> {id}         => (Tokens.SYMBOL (yytext, yypos, yypos + size yytext));
-<XMLTAG> "="          => (Tokens.EQ (yypos, yypos + size yytext));
-
-<XMLTAG> {intconst}   => (case Int64.fromString yytext of
-                            SOME x => Tokens.INT (x, yypos, yypos + size yytext)
-                          | NONE   => (ErrorMsg.errorAt' (yypos, yypos)
-                                       ("Expected int, received: " ^ yytext);
-                                       continue ()));
-<XMLTAG> {realconst}  => (case Real.fromString yytext of
-                            SOME x => Tokens.FLOAT (x, yypos, yypos + size yytext)
-                          | NONE   => (ErrorMsg.errorAt' (yypos, yypos)
-                                       ("Expected float, received: " ^ yytext);
-                                       continue ()));
-<XMLTAG> "\""         => (YYBEGIN STRING;
-			  xmlString := true;
-			  strStart := yypos; str := []; continue ());
-
-<XMLTAG> "{"          => (YYBEGIN INITIAL;
-			  pushLevel (fn () => YYBEGIN XMLTAG);
-			  Tokens.LBRACE (yypos, yypos + 1));
-<XMLTAG> "("          => (YYBEGIN INITIAL;
-			  pushLevel (fn () => YYBEGIN XMLTAG);
-			  Tokens.LPAREN (yypos, yypos + 1));
-
-<XMLTAG> .            => (ErrorMsg.errorAt' (yypos, yypos)
-                          ("illegal XML tag character: \"" ^ yytext ^ "\"");
-                          continue ());
-
-<XML> "{"             => (YYBEGIN INITIAL;
-			  pushLevel (fn () => YYBEGIN XML);
-			  Tokens.LBRACE (yypos, yypos + 1));
-
-<XML> {notags}        => (Tokens.NOTAGS (yytext, yypos, yypos + size yytext));
-
-<XML> .               => (ErrorMsg.errorAt' (yypos, yypos)
-                          ("illegal XML character: \"" ^ yytext ^ "\"");
-                          continue ());
-
-<INITIAL> "()"        => (Tokens.UNIT (pos yypos, pos yypos + size yytext));
-<INITIAL> "("         => (Tokens.LPAREN (pos yypos, pos yypos + size yytext));
-<INITIAL> ")"         => (Tokens.RPAREN (pos yypos, pos yypos + size yytext));
-<INITIAL> "["         => (Tokens.LBRACK (pos yypos, pos yypos + size yytext));
-<INITIAL> "]"         => (Tokens.RBRACK (pos yypos, pos yypos + size yytext));
-<INITIAL> "{"         => (enterBrace ();
-                          Tokens.LBRACE (pos yypos, pos yypos + size yytext));
-<INITIAL> "}"         => (exitBrace ();
-                          Tokens.RBRACE (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "->"        => (Tokens.ARROW (pos yypos, pos yypos + size yytext));
-<INITIAL> "=>"        => (Tokens.DARROW (pos yypos, pos yypos + size yytext));
-<INITIAL> "++"        => (Tokens.PLUSPLUS (pos yypos, pos yypos + size yytext));
-<INITIAL> "--"        => (Tokens.MINUSMINUS (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "="         => (Tokens.EQ (pos yypos, pos yypos + size yytext));
-<INITIAL> "<>"        => (Tokens.NE (pos yypos, pos yypos + size yytext));
-<INITIAL> "<"         => (Tokens.LT (pos yypos, pos yypos + size yytext));
-<INITIAL> ">"         => (Tokens.GT (pos yypos, pos yypos + size yytext));
-<INITIAL> "<="        => (Tokens.LE (pos yypos, pos yypos + size yytext));
-<INITIAL> ">="        => (Tokens.GE (pos yypos, pos yypos + size yytext));
-<INITIAL> ","         => (Tokens.COMMA (pos yypos, pos yypos + size yytext));
-<INITIAL> ":::"       => (Tokens.TCOLON (pos yypos, pos yypos + size yytext));
-<INITIAL> "::"        => (Tokens.DCOLON (pos yypos, pos yypos + size yytext));
-<INITIAL> ":"         => (Tokens.COLON (pos yypos, pos yypos + size yytext));
-<INITIAL> "..."       => (Tokens.DOTDOTDOT (pos yypos, pos yypos + size yytext));
-<INITIAL> "."         => (Tokens.DOT (pos yypos, pos yypos + size yytext));
-<INITIAL> "$"         => (Tokens.DOLLAR (pos yypos, pos yypos + size yytext));
-<INITIAL> "#"         => (Tokens.HASH (pos yypos, pos yypos + size yytext));
-<INITIAL> "__"        => (Tokens.UNDERUNDER (pos yypos, pos yypos + size yytext));
-<INITIAL> "_"         => (Tokens.UNDER (pos yypos, pos yypos + size yytext));
-<INITIAL> "~"         => (Tokens.TWIDDLE (pos yypos, pos yypos + size yytext));
-<INITIAL> "|"         => (Tokens.BAR (pos yypos, pos yypos + size yytext));
-<INITIAL> "*"         => (Tokens.STAR (pos yypos, pos yypos + size yytext));
-<INITIAL> "<-"        => (Tokens.LARROW (pos yypos, pos yypos + size yytext));
-<INITIAL> ";"         => (Tokens.SEMI (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "con"       => (Tokens.CON (pos yypos, pos yypos + size yytext));
-<INITIAL> "type"      => (Tokens.LTYPE (pos yypos, pos yypos + size yytext));
-<INITIAL> "datatype"  => (Tokens.DATATYPE (pos yypos, pos yypos + size yytext));
-<INITIAL> "of"        => (Tokens.OF (pos yypos, pos yypos + size yytext));
-<INITIAL> "val"       => (Tokens.VAL (pos yypos, pos yypos + size yytext));
-<INITIAL> "rec"       => (Tokens.REC (pos yypos, pos yypos + size yytext));
-<INITIAL> "and"       => (Tokens.AND (pos yypos, pos yypos + size yytext));
-<INITIAL> "fun"       => (Tokens.FUN (pos yypos, pos yypos + size yytext));
-<INITIAL> "fn"        => (Tokens.FN (pos yypos, pos yypos + size yytext));
-<INITIAL> "fold"      => (Tokens.FOLD (pos yypos, pos yypos + size yytext));
-<INITIAL> "case"      => (Tokens.CASE (pos yypos, pos yypos + size yytext));
-<INITIAL> "if"        => (Tokens.IF (pos yypos, pos yypos + size yytext));
-<INITIAL> "then"      => (Tokens.THEN (pos yypos, pos yypos + size yytext));
-<INITIAL> "else"      => (Tokens.ELSE (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "structure" => (Tokens.STRUCTURE (pos yypos, pos yypos + size yytext));
-<INITIAL> "signature" => (Tokens.SIGNATURE (pos yypos, pos yypos + size yytext));
-<INITIAL> "struct"    => (Tokens.STRUCT (pos yypos, pos yypos + size yytext));
-<INITIAL> "sig"       => (if yypos = 2 then initialSig () else (); Tokens.SIG (pos yypos, pos yypos + size yytext));
-<INITIAL> "end"       => (Tokens.END (pos yypos, pos yypos + size yytext));
-<INITIAL> "functor"   => (Tokens.FUNCTOR (pos yypos, pos yypos + size yytext));
-<INITIAL> "where"     => (Tokens.WHERE (pos yypos, pos yypos + size yytext));
-<INITIAL> "extern"    => (Tokens.EXTERN (pos yypos, pos yypos + size yytext));
-<INITIAL> "include"   => (Tokens.INCLUDE (pos yypos, pos yypos + size yytext));
-<INITIAL> "open"      => (Tokens.OPEN (pos yypos, pos yypos + size yytext));
-<INITIAL> "constraint"=> (Tokens.CONSTRAINT (pos yypos, pos yypos + size yytext));
-<INITIAL> "constraints"=> (Tokens.CONSTRAINTS (pos yypos, pos yypos + size yytext));
-<INITIAL> "export"    => (Tokens.EXPORT (pos yypos, pos yypos + size yytext));
-<INITIAL> "table"     => (Tokens.TABLE (pos yypos, pos yypos + size yytext));
-<INITIAL> "class"     => (Tokens.CLASS (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "Type"      => (Tokens.TYPE (pos yypos, pos yypos + size yytext));
-<INITIAL> "Name"      => (Tokens.NAME (pos yypos, pos yypos + size yytext));
-<INITIAL> "Unit"      => (Tokens.KUNIT (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "SELECT"    => (Tokens.SELECT (pos yypos, pos yypos + size yytext));
-<INITIAL> "FROM"      => (Tokens.FROM (pos yypos, pos yypos + size yytext));
-<INITIAL> "AS"        => (Tokens.AS (pos yypos, pos yypos + size yytext));
-<INITIAL> "WHERE"     => (Tokens.CWHERE (pos yypos, pos yypos + size yytext));
-<INITIAL> "GROUP"     => (Tokens.GROUP (pos yypos, pos yypos + size yytext));
-<INITIAL> "ORDER"     => (Tokens.ORDER (pos yypos, pos yypos + size yytext));
-<INITIAL> "BY"        => (Tokens.BY (pos yypos, pos yypos + size yytext));
-<INITIAL> "HAVING"    => (Tokens.HAVING (pos yypos, pos yypos + size yytext));
-<INITIAL> "LIMIT"     => (Tokens.LIMIT (pos yypos, pos yypos + size yytext));
-<INITIAL> "OFFSET"    => (Tokens.OFFSET (pos yypos, pos yypos + size yytext));
-<INITIAL> "ALL"       => (Tokens.ALL (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "UNION"     => (Tokens.UNION (pos yypos, pos yypos + size yytext));
-<INITIAL> "INTERSECT" => (Tokens.INTERSECT (pos yypos, pos yypos + size yytext));
-<INITIAL> "EXCEPT"    => (Tokens.EXCEPT (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "TRUE"      => (Tokens.TRUE (pos yypos, pos yypos + size yytext));
-<INITIAL> "FALSE"     => (Tokens.FALSE (pos yypos, pos yypos + size yytext));
-<INITIAL> "AND"       => (Tokens.CAND (pos yypos, pos yypos + size yytext));
-<INITIAL> "OR"        => (Tokens.OR (pos yypos, pos yypos + size yytext));
-<INITIAL> "NOT"       => (Tokens.NOT (pos yypos, pos yypos + size yytext));
-
-<INITIAL> "COUNT"     => (Tokens.COUNT (pos yypos, pos yypos + size yytext));
-<INITIAL> "AVG"       => (Tokens.AVG (pos yypos, pos yypos + size yytext));
-<INITIAL> "SUM"       => (Tokens.SUM (pos yypos, pos yypos + size yytext));
-<INITIAL> "MIN"       => (Tokens.MIN (pos yypos, pos yypos + size yytext));
-<INITIAL> "MAX"       => (Tokens.MAX (pos yypos, pos yypos + size yytext));
-
-<INITIAL> {id}        => (Tokens.SYMBOL (yytext, pos yypos, pos yypos + size yytext));
-<INITIAL> {cid}       => (Tokens.CSYMBOL (yytext, pos yypos, pos yypos + size yytext));
-
-<INITIAL> {intconst}  => (case Int64.fromString yytext of
-                              SOME x => Tokens.INT (x, pos yypos, pos yypos + size yytext)
-                            | NONE   => (ErrorMsg.errorAt' (pos yypos, pos yypos)
-                                                           ("Expected int, received: " ^ yytext);
-                                         continue ()));
-<INITIAL> {realconst} => (case Real64.fromString yytext of
-                            SOME x => Tokens.FLOAT (x, pos yypos, pos yypos + size yytext)
-                          | NONE   => (ErrorMsg.errorAt' (pos yypos, pos yypos)
-                                       ("Expected float, received: " ^ yytext);
-                                       continue ()));
-
-<COMMENT> .           => (continue());
-
-<INITIAL> .           => (ErrorMsg.errorAt' (pos yypos, pos yypos)
-                                            ("illegal character: \"" ^ yytext ^ "\"");
-                          continue ());