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annotate src/urweb.lex @ 524:a6159d0940f0

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Start of manual
author Adam Chlipala <adamc@hcoop.net>
date Thu, 27 Nov 2008 14:38:53 -0500
parents ae03d09043c1
children 8998114760c1
rev   line source
adamc@1 1 (* Copyright (c) 2008, Adam Chlipala
adamc@1 2 * All rights reserved.
adamc@1 3 *
adamc@1 4 * Redistribution and use in source and binary forms, with or without
adamc@1 5 * modification, are permitted provided that the following conditions are met:
adamc@1 6 *
adamc@1 7 * - Redistributions of source code must retain the above copyright notice,
adamc@1 8 * this list of conditions and the following disclaimer.
adamc@1 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@1 10 * this list of conditions and the following disclaimer in the documentation
adamc@1 11 * and/or other materials provided with the distribution.
adamc@1 12 * - The names of contributors may not be used to endorse or promote products
adamc@1 13 * derived from this software without specific prior written permission.
adamc@1 14 *
adamc@1 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@1 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@1 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@1 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@1 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@1 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@1 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@1 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@1 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@1 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@1 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@1 26 *)
adamc@1 27
adamc@244 28 (* Lexing info for Ur/Web programs *)
adamc@1 29
adamc@1 30 type pos = int
adamc@1 31 type svalue = Tokens.svalue
adamc@1 32 type ('a,'b) token = ('a,'b) Tokens.token
adamc@1 33 type lexresult = (svalue,pos) Tokens.token
adamc@1 34
adamc@1 35 local
adamc@1 36 val commentLevel = ref 0
adamc@1 37 val commentPos = ref 0
adamc@1 38 in
adamc@1 39 fun enterComment pos =
adamc@1 40 (if !commentLevel = 0 then
adamc@1 41 commentPos := pos
adamc@1 42 else
adamc@1 43 ();
adamc@1 44 commentLevel := !commentLevel + 1)
adamc@1 45
adamc@1 46 fun exitComment () =
adamc@1 47 (ignore (commentLevel := !commentLevel - 1);
adamc@1 48 !commentLevel = 0)
adamc@1 49
adamc@1 50 fun eof () =
adamc@1 51 let
adamc@1 52 val pos = ErrorMsg.lastLineStart ()
adamc@1 53 in
adamc@1 54 if !commentLevel > 0 then
adamc@1 55 ErrorMsg.errorAt' (!commentPos, !commentPos) "Unterminated comment"
adamc@1 56 else
adamc@1 57 ();
adamc@1 58 Tokens.EOF (pos, pos)
adamc@1 59 end
adamc@1 60 end
adamc@1 61
adamc@229 62 val strEnder = ref #"\""
adamc@14 63 val str = ref ([] : char list)
adamc@14 64 val strStart = ref 0
adamc@14 65
adamc@54 66 local
adamc@54 67 val initSig = ref false
adamc@54 68 val offset = ref 0
adamc@54 69 in
adamc@54 70
adamc@54 71 fun initialSig () = initSig := true
adamc@54 72
adamc@54 73 fun pos yypos = yypos - !offset
adamc@54 74
adamc@54 75 fun newline yypos =
adamc@54 76 if !initSig then
adamc@54 77 (initSig := false;
adamc@54 78 offset := yypos + 1)
adamc@54 79 else
adamc@54 80 ErrorMsg.newline (pos yypos)
adamc@54 81
adamc@54 82 end
adamc@54 83
adamc@91 84 val xmlTag = ref ([] : string list)
adamc@91 85 val xmlString = ref true
adamc@91 86 val braceLevels = ref ([] : ((unit -> unit) * int) list)
adamc@91 87
adamc@91 88 fun pushLevel s = braceLevels := (s, 1) :: (!braceLevels)
adamc@91 89
adamc@91 90 fun enterBrace () =
adamc@91 91 case !braceLevels of
adamc@91 92 (s, i) :: rest => braceLevels := (s, i+1) :: rest
adamc@91 93 | _ => ()
adamc@91 94
adamc@91 95 fun exitBrace () =
adamc@91 96 case !braceLevels of
adamc@91 97 (s, i) :: rest =>
adamc@91 98 if i = 1 then
adamc@91 99 (braceLevels := rest;
adamc@91 100 s ())
adamc@91 101 else
adamc@91 102 braceLevels := (s, i-1) :: rest
adamc@91 103 | _ => ()
adamc@91 104
adamc@91 105 fun initialize () = (xmlTag := [];
adamc@91 106 xmlString := false)
adamc@91 107
adamc@54 108
adamc@1 109 %%
adamc@244 110 %header (functor UrwebLexFn(structure Tokens : Urweb_TOKENS));
adamc@1 111 %full
adamc@91 112 %s COMMENT STRING XML XMLTAG;
adamc@1 113
adamc@48 114 id = [a-z_][A-Za-z0-9_']*;
adamc@316 115 cid = [A-Z][A-Za-z0-9_]*;
adamc@1 116 ws = [\ \t\012];
adamc@14 117 intconst = [0-9]+;
adamc@14 118 realconst = [0-9]+\.[0-9]*;
adamc@91 119 notags = [^<{\n]+;
adamc@1 120
adamc@1 121 %%
adamc@1 122
adamc@54 123 <INITIAL> \n => (newline yypos;
adamc@1 124 continue ());
adamc@54 125 <COMMENT> \n => (newline yypos;
adamc@1 126 continue ());
adamc@91 127 <XMLTAG> \n => (newline yypos;
adamc@91 128 continue ());
adamc@91 129 <XML> \n => (newline yypos;
adamc@91 130 Tokens.NOTAGS (yytext, yypos, yypos + size yytext));
adamc@1 131
adamc@1 132 <INITIAL> {ws}+ => (lex ());
adamc@1 133
adamc@1 134 <INITIAL> "(*" => (YYBEGIN COMMENT;
adamc@54 135 enterComment (pos yypos);
adamc@1 136 continue ());
adamc@54 137 <INITIAL> "*)" => (ErrorMsg.errorAt' (pos yypos, pos yypos) "Unbalanced comments";
adamc@1 138 continue ());
adamc@1 139
adamc@54 140 <COMMENT> "(*" => (enterComment (pos yypos);
adamc@1 141 continue ());
adamc@1 142 <COMMENT> "*)" => (if exitComment () then YYBEGIN INITIAL else ();
adamc@1 143 continue ());
adamc@1 144
adamc@229 145 <INITIAL> "\"" => (YYBEGIN STRING; strEnder := #"\""; strStart := pos yypos; str := []; continue());
adamc@229 146 <INITIAL> "'" => (YYBEGIN STRING; strEnder := #"'"; strStart := pos yypos; str := []; continue());
adamc@14 147 <STRING> "\\\"" => (str := #"\"" :: !str; continue());
adamc@229 148 <STRING> "\\'" => (str := #"'" :: !str; continue());
adamc@54 149 <STRING> "\n" => (newline yypos;
adamc@14 150 str := #"\n" :: !str; continue());
adamc@229 151 <STRING> . => (let
adamc@229 152 val ch = String.sub (yytext, 0)
adamc@229 153 in
adamc@229 154 if ch = !strEnder then
adamc@229 155 (if !xmlString then
adamc@229 156 (xmlString := false; YYBEGIN XMLTAG)
adamc@229 157 else
adamc@229 158 YYBEGIN INITIAL;
adamc@229 159 Tokens.STRING (String.implode (List.rev (!str)), !strStart, pos yypos + 1))
adamc@229 160 else
adamc@229 161 (str := ch :: !str;
adamc@229 162 continue ())
adamc@229 163 end);
adamc@14 164
adamc@360 165 <INITIAL> "<" {id} "/>"=>(let
adamc@360 166 val tag = String.substring (yytext, 1, size yytext - 3)
adamc@360 167 in
adamc@360 168 Tokens.XML_BEGIN_END (tag, yypos, yypos + size yytext)
adamc@360 169 end);
adamc@91 170 <INITIAL> "<" {id} ">"=> (let
adamc@91 171 val tag = String.substring (yytext, 1, size yytext - 2)
adamc@91 172 in
adamc@91 173 YYBEGIN XML;
adamc@91 174 xmlTag := tag :: (!xmlTag);
adamc@91 175 Tokens.XML_BEGIN (tag, yypos, yypos + size yytext)
adamc@91 176 end);
adamc@91 177 <XML> "</" {id} ">" => (let
adamc@91 178 val id = String.substring (yytext, 2, size yytext - 3)
adamc@91 179 in
adamc@91 180 case !xmlTag of
adamc@91 181 id' :: rest =>
adamc@91 182 if id = id' then
adamc@91 183 (YYBEGIN INITIAL;
adamc@91 184 xmlTag := rest;
adamc@91 185 Tokens.XML_END (yypos, yypos + size yytext))
adamc@91 186 else
adamc@91 187 Tokens.END_TAG (id, yypos, yypos + size yytext)
adamc@91 188 | _ =>
adamc@91 189 Tokens.END_TAG (id, yypos, yypos + size yytext)
adamc@91 190 end);
adamc@91 191
adamc@91 192 <XML> "<" {id} => (YYBEGIN XMLTAG;
adamc@91 193 Tokens.BEGIN_TAG (String.extract (yytext, 1, NONE),
adamc@91 194 yypos, yypos + size yytext));
adamc@91 195
adamc@91 196 <XMLTAG> "/" => (Tokens.DIVIDE (yypos, yypos + size yytext));
adamc@91 197 <XMLTAG> ">" => (YYBEGIN XML;
adamc@91 198 Tokens.GT (yypos, yypos + size yytext));
adamc@91 199
adamc@91 200 <XMLTAG> {ws}+ => (lex ());
adamc@91 201
adamc@91 202 <XMLTAG> {id} => (Tokens.SYMBOL (yytext, yypos, yypos + size yytext));
adamc@91 203 <XMLTAG> "=" => (Tokens.EQ (yypos, yypos + size yytext));
adamc@91 204
adamc@91 205 <XMLTAG> {intconst} => (case Int64.fromString yytext of
adamc@91 206 SOME x => Tokens.INT (x, yypos, yypos + size yytext)
adamc@91 207 | NONE => (ErrorMsg.errorAt' (yypos, yypos)
adamc@91 208 ("Expected int, received: " ^ yytext);
adamc@91 209 continue ()));
adamc@91 210 <XMLTAG> {realconst} => (case Real.fromString yytext of
adamc@91 211 SOME x => Tokens.FLOAT (x, yypos, yypos + size yytext)
adamc@91 212 | NONE => (ErrorMsg.errorAt' (yypos, yypos)
adamc@91 213 ("Expected float, received: " ^ yytext);
adamc@91 214 continue ()));
adamc@91 215 <XMLTAG> "\"" => (YYBEGIN STRING;
adamc@91 216 xmlString := true;
adamc@104 217 strStart := yypos; str := []; continue ());
adamc@91 218
adamc@91 219 <XMLTAG> "{" => (YYBEGIN INITIAL;
adamc@91 220 pushLevel (fn () => YYBEGIN XMLTAG);
adamc@91 221 Tokens.LBRACE (yypos, yypos + 1));
adamc@91 222 <XMLTAG> "(" => (YYBEGIN INITIAL;
adamc@91 223 pushLevel (fn () => YYBEGIN XMLTAG);
adamc@91 224 Tokens.LPAREN (yypos, yypos + 1));
adamc@91 225
adamc@91 226 <XMLTAG> . => (ErrorMsg.errorAt' (yypos, yypos)
adamc@91 227 ("illegal XML tag character: \"" ^ yytext ^ "\"");
adamc@91 228 continue ());
adamc@91 229
adamc@91 230 <XML> "{" => (YYBEGIN INITIAL;
adamc@91 231 pushLevel (fn () => YYBEGIN XML);
adamc@91 232 Tokens.LBRACE (yypos, yypos + 1));
adamc@91 233
adamc@91 234 <XML> {notags} => (Tokens.NOTAGS (yytext, yypos, yypos + size yytext));
adamc@91 235
adamc@91 236 <XML> . => (ErrorMsg.errorAt' (yypos, yypos)
adamc@91 237 ("illegal XML character: \"" ^ yytext ^ "\"");
adamc@91 238 continue ());
adamc@91 239
adamc@82 240 <INITIAL> "()" => (Tokens.UNIT (pos yypos, pos yypos + size yytext));
adamc@54 241 <INITIAL> "(" => (Tokens.LPAREN (pos yypos, pos yypos + size yytext));
adamc@54 242 <INITIAL> ")" => (Tokens.RPAREN (pos yypos, pos yypos + size yytext));
adamc@54 243 <INITIAL> "[" => (Tokens.LBRACK (pos yypos, pos yypos + size yytext));
adamc@54 244 <INITIAL> "]" => (Tokens.RBRACK (pos yypos, pos yypos + size yytext));
adamc@110 245 <INITIAL> "{" => (enterBrace ();
adamc@110 246 Tokens.LBRACE (pos yypos, pos yypos + size yytext));
adamc@110 247 <INITIAL> "}" => (exitBrace ();
adamc@110 248 Tokens.RBRACE (pos yypos, pos yypos + size yytext));
adamc@1 249
adamc@54 250 <INITIAL> "->" => (Tokens.ARROW (pos yypos, pos yypos + size yytext));
adamc@54 251 <INITIAL> "=>" => (Tokens.DARROW (pos yypos, pos yypos + size yytext));
adamc@54 252 <INITIAL> "++" => (Tokens.PLUSPLUS (pos yypos, pos yypos + size yytext));
adamc@149 253 <INITIAL> "--" => (Tokens.MINUSMINUS (pos yypos, pos yypos + size yytext));
adamc@493 254 <INITIAL> "---" => (Tokens.MINUSMINUSMINUS (pos yypos, pos yypos + size yytext));
adamc@1 255
adamc@54 256 <INITIAL> "=" => (Tokens.EQ (pos yypos, pos yypos + size yytext));
adamc@219 257 <INITIAL> "<>" => (Tokens.NE (pos yypos, pos yypos + size yytext));
adamc@219 258 <INITIAL> "<" => (Tokens.LT (pos yypos, pos yypos + size yytext));
adamc@219 259 <INITIAL> ">" => (Tokens.GT (pos yypos, pos yypos + size yytext));
adamc@219 260 <INITIAL> "<=" => (Tokens.LE (pos yypos, pos yypos + size yytext));
adamc@219 261 <INITIAL> ">=" => (Tokens.GE (pos yypos, pos yypos + size yytext));
adamc@54 262 <INITIAL> "," => (Tokens.COMMA (pos yypos, pos yypos + size yytext));
adamc@54 263 <INITIAL> ":::" => (Tokens.TCOLON (pos yypos, pos yypos + size yytext));
adamc@54 264 <INITIAL> "::" => (Tokens.DCOLON (pos yypos, pos yypos + size yytext));
adamc@54 265 <INITIAL> ":" => (Tokens.COLON (pos yypos, pos yypos + size yytext));
adamc@174 266 <INITIAL> "..." => (Tokens.DOTDOTDOT (pos yypos, pos yypos + size yytext));
adamc@54 267 <INITIAL> "." => (Tokens.DOT (pos yypos, pos yypos + size yytext));
adamc@54 268 <INITIAL> "$" => (Tokens.DOLLAR (pos yypos, pos yypos + size yytext));
adamc@54 269 <INITIAL> "#" => (Tokens.HASH (pos yypos, pos yypos + size yytext));
adamc@54 270 <INITIAL> "__" => (Tokens.UNDERUNDER (pos yypos, pos yypos + size yytext));
adamc@54 271 <INITIAL> "_" => (Tokens.UNDER (pos yypos, pos yypos + size yytext));
adamc@84 272 <INITIAL> "~" => (Tokens.TWIDDLE (pos yypos, pos yypos + size yytext));
adamc@156 273 <INITIAL> "|" => (Tokens.BAR (pos yypos, pos yypos + size yytext));
adamc@195 274 <INITIAL> "*" => (Tokens.STAR (pos yypos, pos yypos + size yytext));
adamc@243 275 <INITIAL> "<-" => (Tokens.LARROW (pos yypos, pos yypos + size yytext));
adamc@243 276 <INITIAL> ";" => (Tokens.SEMI (pos yypos, pos yypos + size yytext));
adamc@1 277
adamc@389 278 <INITIAL> "+" => (Tokens.PLUS (pos yypos, pos yypos + size yytext));
adamc@389 279 <INITIAL> "-" => (Tokens.MINUS (pos yypos, pos yypos + size yytext));
adamc@389 280 <INITIAL> "/" => (Tokens.DIVIDE (yypos, yypos + size yytext));
adamc@389 281 <INITIAL> "%" => (Tokens.MOD (pos yypos, pos yypos + size yytext));
adamc@403 282 <INITIAL> "@" => (Tokens.AT (pos yypos, pos yypos + size yytext));
adamc@389 283
adamc@54 284 <INITIAL> "con" => (Tokens.CON (pos yypos, pos yypos + size yytext));
adamc@54 285 <INITIAL> "type" => (Tokens.LTYPE (pos yypos, pos yypos + size yytext));
adamc@156 286 <INITIAL> "datatype" => (Tokens.DATATYPE (pos yypos, pos yypos + size yytext));
adamc@156 287 <INITIAL> "of" => (Tokens.OF (pos yypos, pos yypos + size yytext));
adamc@54 288 <INITIAL> "val" => (Tokens.VAL (pos yypos, pos yypos + size yytext));
adamc@123 289 <INITIAL> "rec" => (Tokens.REC (pos yypos, pos yypos + size yytext));
adamc@123 290 <INITIAL> "and" => (Tokens.AND (pos yypos, pos yypos + size yytext));
adamc@242 291 <INITIAL> "fun" => (Tokens.FUN (pos yypos, pos yypos + size yytext));
adamc@54 292 <INITIAL> "fn" => (Tokens.FN (pos yypos, pos yypos + size yytext));
adamc@67 293 <INITIAL> "fold" => (Tokens.FOLD (pos yypos, pos yypos + size yytext));
adamc@170 294 <INITIAL> "case" => (Tokens.CASE (pos yypos, pos yypos + size yytext));
adamc@190 295 <INITIAL> "if" => (Tokens.IF (pos yypos, pos yypos + size yytext));
adamc@190 296 <INITIAL> "then" => (Tokens.THEN (pos yypos, pos yypos + size yytext));
adamc@190 297 <INITIAL> "else" => (Tokens.ELSE (pos yypos, pos yypos + size yytext));
adamc@1 298
adamc@54 299 <INITIAL> "structure" => (Tokens.STRUCTURE (pos yypos, pos yypos + size yytext));
adamc@54 300 <INITIAL> "signature" => (Tokens.SIGNATURE (pos yypos, pos yypos + size yytext));
adamc@54 301 <INITIAL> "struct" => (Tokens.STRUCT (pos yypos, pos yypos + size yytext));
adamc@54 302 <INITIAL> "sig" => (if yypos = 2 then initialSig () else (); Tokens.SIG (pos yypos, pos yypos + size yytext));
adamc@446 303 <INITIAL> "let" => (Tokens.LET (pos yypos, pos yypos + size yytext));
adamc@446 304 <INITIAL> "in" => (Tokens.IN (pos yypos, pos yypos + size yytext));
adamc@54 305 <INITIAL> "end" => (Tokens.END (pos yypos, pos yypos + size yytext));
adamc@54 306 <INITIAL> "functor" => (Tokens.FUNCTOR (pos yypos, pos yypos + size yytext));
adamc@54 307 <INITIAL> "where" => (Tokens.WHERE (pos yypos, pos yypos + size yytext));
adamc@54 308 <INITIAL> "extern" => (Tokens.EXTERN (pos yypos, pos yypos + size yytext));
adamc@58 309 <INITIAL> "include" => (Tokens.INCLUDE (pos yypos, pos yypos + size yytext));
adamc@58 310 <INITIAL> "open" => (Tokens.OPEN (pos yypos, pos yypos + size yytext));
adamc@88 311 <INITIAL> "constraint"=> (Tokens.CONSTRAINT (pos yypos, pos yypos + size yytext));
adamc@88 312 <INITIAL> "constraints"=> (Tokens.CONSTRAINTS (pos yypos, pos yypos + size yytext));
adamc@109 313 <INITIAL> "export" => (Tokens.EXPORT (pos yypos, pos yypos + size yytext));
adamc@203 314 <INITIAL> "table" => (Tokens.TABLE (pos yypos, pos yypos + size yytext));
adamc@338 315 <INITIAL> "sequence" => (Tokens.SEQUENCE (pos yypos, pos yypos + size yytext));
adamc@211 316 <INITIAL> "class" => (Tokens.CLASS (pos yypos, pos yypos + size yytext));
adamc@459 317 <INITIAL> "cookie" => (Tokens.COOKIE (pos yypos, pos yypos + size yytext));
adamc@30 318
adamc@54 319 <INITIAL> "Type" => (Tokens.TYPE (pos yypos, pos yypos + size yytext));
adamc@54 320 <INITIAL> "Name" => (Tokens.NAME (pos yypos, pos yypos + size yytext));
adamc@82 321 <INITIAL> "Unit" => (Tokens.KUNIT (pos yypos, pos yypos + size yytext));
adamc@1 322
adamc@204 323 <INITIAL> "SELECT" => (Tokens.SELECT (pos yypos, pos yypos + size yytext));
adamc@204 324 <INITIAL> "FROM" => (Tokens.FROM (pos yypos, pos yypos + size yytext));
adamc@204 325 <INITIAL> "AS" => (Tokens.AS (pos yypos, pos yypos + size yytext));
adamc@209 326 <INITIAL> "WHERE" => (Tokens.CWHERE (pos yypos, pos yypos + size yytext));
adamc@339 327 <INITIAL> "SQL" => (Tokens.SQL (pos yypos, pos yypos + size yytext));
adamc@226 328 <INITIAL> "GROUP" => (Tokens.GROUP (pos yypos, pos yypos + size yytext));
adamc@230 329 <INITIAL> "ORDER" => (Tokens.ORDER (pos yypos, pos yypos + size yytext));
adamc@226 330 <INITIAL> "BY" => (Tokens.BY (pos yypos, pos yypos + size yytext));
adamc@227 331 <INITIAL> "HAVING" => (Tokens.HAVING (pos yypos, pos yypos + size yytext));
adamc@231 332 <INITIAL> "LIMIT" => (Tokens.LIMIT (pos yypos, pos yypos + size yytext));
adamc@231 333 <INITIAL> "OFFSET" => (Tokens.OFFSET (pos yypos, pos yypos + size yytext));
adamc@232 334 <INITIAL> "ALL" => (Tokens.ALL (pos yypos, pos yypos + size yytext));
adamc@209 335
adamc@229 336 <INITIAL> "UNION" => (Tokens.UNION (pos yypos, pos yypos + size yytext));
adamc@229 337 <INITIAL> "INTERSECT" => (Tokens.INTERSECT (pos yypos, pos yypos + size yytext));
adamc@229 338 <INITIAL> "EXCEPT" => (Tokens.EXCEPT (pos yypos, pos yypos + size yytext));
adamc@229 339
adamc@209 340 <INITIAL> "TRUE" => (Tokens.TRUE (pos yypos, pos yypos + size yytext));
adamc@209 341 <INITIAL> "FALSE" => (Tokens.FALSE (pos yypos, pos yypos + size yytext));
adamc@220 342 <INITIAL> "AND" => (Tokens.CAND (pos yypos, pos yypos + size yytext));
adamc@220 343 <INITIAL> "OR" => (Tokens.OR (pos yypos, pos yypos + size yytext));
adamc@220 344 <INITIAL> "NOT" => (Tokens.NOT (pos yypos, pos yypos + size yytext));
adamc@204 345
adamc@235 346 <INITIAL> "COUNT" => (Tokens.COUNT (pos yypos, pos yypos + size yytext));
adamc@236 347 <INITIAL> "AVG" => (Tokens.AVG (pos yypos, pos yypos + size yytext));
adamc@236 348 <INITIAL> "SUM" => (Tokens.SUM (pos yypos, pos yypos + size yytext));
adamc@236 349 <INITIAL> "MIN" => (Tokens.MIN (pos yypos, pos yypos + size yytext));
adamc@236 350 <INITIAL> "MAX" => (Tokens.MAX (pos yypos, pos yypos + size yytext));
adamc@235 351
adamc@268 352 <INITIAL> "ASC" => (Tokens.ASC (pos yypos, pos yypos + size yytext));
adamc@268 353 <INITIAL> "DESC" => (Tokens.DESC (pos yypos, pos yypos + size yytext));
adamc@268 354
adamc@302 355 <INITIAL> "INSERT" => (Tokens.INSERT (pos yypos, pos yypos + size yytext));
adamc@302 356 <INITIAL> "INTO" => (Tokens.INTO (pos yypos, pos yypos + size yytext));
adamc@302 357 <INITIAL> "VALUES" => (Tokens.VALUES (pos yypos, pos yypos + size yytext));
adamc@302 358 <INITIAL> "UPDATE" => (Tokens.UPDATE (pos yypos, pos yypos + size yytext));
adamc@302 359 <INITIAL> "SET" => (Tokens.SET (pos yypos, pos yypos + size yytext));
adamc@302 360 <INITIAL> "DELETE" => (Tokens.DELETE (pos yypos, pos yypos + size yytext));
adamc@467 361 <INITIAL> "NULL" => (Tokens.NULL (pos yypos, pos yypos + size yytext));
adamc@470 362 <INITIAL> "IS" => (Tokens.IS (pos yypos, pos yypos + size yytext));
adamc@302 363
adamc@441 364 <INITIAL> "CURRENT_TIMESTAMP" => (Tokens.CURRENT_TIMESTAMP (pos yypos, pos yypos + size yytext));
adamc@441 365
adamc@54 366 <INITIAL> {id} => (Tokens.SYMBOL (yytext, pos yypos, pos yypos + size yytext));
adamc@54 367 <INITIAL> {cid} => (Tokens.CSYMBOL (yytext, pos yypos, pos yypos + size yytext));
adamc@1 368
adamc@14 369 <INITIAL> {intconst} => (case Int64.fromString yytext of
adamc@120 370 SOME x => Tokens.INT (x, pos yypos, pos yypos + size yytext)
adamc@120 371 | NONE => (ErrorMsg.errorAt' (pos yypos, pos yypos)
adamc@120 372 ("Expected int, received: " ^ yytext);
adamc@120 373 continue ()));
adamc@14 374 <INITIAL> {realconst} => (case Real64.fromString yytext of
adamc@54 375 SOME x => Tokens.FLOAT (x, pos yypos, pos yypos + size yytext)
adamc@54 376 | NONE => (ErrorMsg.errorAt' (pos yypos, pos yypos)
adamc@14 377 ("Expected float, received: " ^ yytext);
adamc@14 378 continue ()));
adamc@14 379
adamc@1 380 <COMMENT> . => (continue());
adamc@1 381
adamc@54 382 <INITIAL> . => (ErrorMsg.errorAt' (pos yypos, pos yypos)
adamc@1 383 ("illegal character: \"" ^ yytext ^ "\"");
adamc@1 384 continue ());