annotate src/lacweb.grm @ 219:5292c0113024

SQL comparison operators
author Adam Chlipala <adamc@hcoop.net>
date Sat, 16 Aug 2008 17:18:00 -0400
parents ba4d7c33a45f
children 2b665e822e9a
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@1 28 (* Grammar for Laconic/Web programs *)
adamc@1 29
adamc@4 30 open Source
adamc@1 31
adamc@1 32 val s = ErrorMsg.spanOf
adamc@1 33
adamc@204 34 fun capitalize "" = ""
adamc@204 35 | capitalize s = str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@104 36
adamc@203 37 fun entable t =
adamc@203 38 case #1 t of
adamc@203 39 TRecord c => c
adamc@203 40 | _ => t
adamc@203 41
adamc@207 42 datatype select_item =
adamc@207 43 Field of con * con
adamc@207 44
adamc@207 45 datatype select =
adamc@207 46 Star
adamc@207 47 | Items of select_item list
adamc@207 48
adamc@207 49 fun eqTnames ((c1, _), (c2, _)) =
adamc@207 50 case (c1, c2) of
adamc@207 51 (CVar (ms1, x1), CVar (ms2, x2)) => ms1 = ms2 andalso x1 = x2
adamc@207 52 | (CName x1, CName x2) => x1 = x2
adamc@207 53 | _ => false
adamc@207 54
adamc@207 55 fun amend_select loc (si, tabs) =
adamc@207 56 let
adamc@207 57 val (tx, c) = case si of
adamc@207 58 Field (tx, fx) => (tx, (CRecord ([(fx, (CWild (KType, loc), loc))]), loc))
adamc@207 59
adamc@207 60 val (tabs, found) = ListUtil.foldlMap (fn ((tx', c'), found) =>
adamc@207 61 if eqTnames (tx, tx') then
adamc@207 62 ((tx', (CConcat (c, c'), loc)), true)
adamc@207 63 else
adamc@207 64 ((tx', c'), found))
adamc@207 65 false tabs
adamc@207 66 in
adamc@207 67 if found then
adamc@207 68 ()
adamc@207 69 else
adamc@207 70 ErrorMsg.errorAt loc "Select of field from unbound table";
adamc@207 71
adamc@207 72 tabs
adamc@207 73 end
adamc@207 74
adamc@209 75 fun sql_inject (v, t, loc) =
adamc@209 76 let
adamc@209 77 val e = (EApp ((EVar (["Basis"], "sql_inject"), loc), (v, loc)), loc)
adamc@209 78 in
adamc@209 79 (EApp (e, (t, loc)), loc)
adamc@209 80 end
adamc@209 81
adamc@219 82 fun sql_compare (oper, sqlexp1, sqlexp2, loc) =
adamc@219 83 let
adamc@219 84 val e = (EVar (["Basis"], "sql_comparison"), loc)
adamc@219 85 val e = (EApp (e, (EVar (["Basis"], "sql_" ^ oper), loc)), loc)
adamc@219 86 val e = (EApp (e, sqlexp1), loc)
adamc@219 87 val e = (EApp (e, sqlexp2), loc)
adamc@219 88 in
adamc@219 89 (EApp (e, (EWild, loc)), loc)
adamc@219 90 end
adamc@219 91
adamc@1 92 %%
adamc@1 93 %header (functor LacwebLrValsFn(structure Token : TOKEN))
adamc@1 94
adamc@1 95 %term
adamc@1 96 EOF
adamc@14 97 | STRING of string | INT of Int64.int | FLOAT of Real64.real
adamc@1 98 | SYMBOL of string | CSYMBOL of string
adamc@1 99 | LPAREN | RPAREN | LBRACK | RBRACK | LBRACE | RBRACE
adamc@156 100 | EQ | COMMA | COLON | DCOLON | TCOLON | DOT | HASH | UNDER | UNDERUNDER | BAR
adamc@219 101 | DIVIDE | DOTDOTDOT
adamc@211 102 | CON | LTYPE | VAL | REC | AND | FOLD | UNIT | KUNIT | CLASS
adamc@156 103 | DATATYPE | OF
adamc@7 104 | TYPE | NAME
adamc@195 105 | ARROW | LARROW | DARROW | STAR
adamc@149 106 | FN | PLUSPLUS | MINUSMINUS | DOLLAR | TWIDDLE
adamc@88 107 | STRUCTURE | SIGNATURE | STRUCT | SIG | END | FUNCTOR | WHERE | EXTERN
adamc@203 108 | INCLUDE | OPEN | CONSTRAINT | CONSTRAINTS | EXPORT | TABLE
adamc@190 109 | CASE | IF | THEN | ELSE
adamc@1 110
adamc@91 111 | XML_BEGIN of string | XML_END
adamc@91 112 | NOTAGS of string
adamc@91 113 | BEGIN_TAG of string | END_TAG of string
adamc@91 114
adamc@209 115 | SELECT | FROM | AS | CWHERE
adamc@209 116 | TRUE | FALSE
adamc@219 117 | NE | LT | LE | GT | GE
adamc@204 118
adamc@30 119 %nonterm
adamc@1 120 file of decl list
adamc@1 121 | decls of decl list
adamc@1 122 | decl of decl
adamc@123 123 | vali of string * con option * exp
adamc@123 124 | valis of (string * con option * exp) list
adamc@1 125
adamc@191 126 | dargs of string list
adamc@156 127 | barOpt of unit
adamc@156 128 | dcons of (string * con option) list
adamc@156 129 | dcon of string * con option
adamc@156 130
adamc@30 131 | sgn of sgn
adamc@42 132 | sgntm of sgn
adamc@30 133 | sgi of sgn_item
adamc@30 134 | sgis of sgn_item list
adamc@30 135
adamc@30 136 | str of str
adamc@30 137
adamc@1 138 | kind of kind
adamc@207 139 | ktuple of kind list
adamc@1 140 | kcolon of explicitness
adamc@1 141
adamc@34 142 | path of string list * string
adamc@156 143 | cpath of string list * string
adamc@34 144 | spath of str
adamc@59 145 | mpath of string list
adamc@34 146
adamc@1 147 | cexp of con
adamc@1 148 | capps of con
adamc@1 149 | cterm of con
adamc@195 150 | ctuple of con list
adamc@207 151 | ctuplev of con list
adamc@1 152 | ident of con
adamc@200 153 | idents of con list
adamc@1 154 | rcon of (con * con) list
adamc@83 155 | rconn of (con * con) list
adamc@1 156 | rcone of (con * con) list
adamc@1 157
adamc@8 158 | eexp of exp
adamc@8 159 | eapps of exp
adamc@8 160 | eterm of exp
adamc@195 161 | etuple of exp list
adamc@12 162 | rexp of (con * exp) list
adamc@91 163 | xml of exp
adamc@91 164 | xmlOne of exp
adamc@141 165 | tag of string * exp
adamc@141 166 | tagHead of string * exp
adamc@8 167
adamc@170 168 | branch of pat * exp
adamc@170 169 | branchs of (pat * exp) list
adamc@170 170 | pat of pat
adamc@170 171 | pterm of pat
adamc@174 172 | rpat of (string * pat) list * bool
adamc@195 173 | ptuple of pat list
adamc@170 174
adamc@104 175 | attrs of (con * exp) list
adamc@104 176 | attr of con * exp
adamc@104 177 | attrv of exp
adamc@104 178
adamc@204 179 | query of exp
adamc@204 180 | tables of (con * exp) list
adamc@204 181 | tname of con
adamc@204 182 | table of con * exp
adamc@207 183 | tident of con
adamc@207 184 | fident of con
adamc@207 185 | seli of select_item
adamc@207 186 | selis of select_item list
adamc@207 187 | select of select
adamc@209 188 | sqlexp of exp
adamc@209 189 | wopt of exp
adamc@207 190
adamc@204 191
adamc@1 192 %verbose (* print summary of errors *)
adamc@1 193 %pos int (* positions *)
adamc@1 194 %start file
adamc@1 195 %pure
adamc@1 196 %eop EOF
adamc@1 197 %noshift EOF
adamc@1 198
adamc@1 199 %name Lacweb
adamc@1 200
adamc@195 201 %nonassoc IF THEN ELSE
adamc@1 202 %nonassoc DARROW
adamc@1 203 %nonassoc COLON
adamc@6 204 %nonassoc DCOLON TCOLON
adamc@1 205 %right COMMA
adamc@219 206 %nonassoc EQ NE LT LE GT GE
adamc@1 207 %right ARROW LARROW
adamc@149 208 %right PLUSPLUS MINUSMINUS
adamc@195 209 %right STAR
adamc@84 210 %nonassoc TWIDDLE
adamc@1 211 %nonassoc DOLLAR
adamc@1 212 %left DOT
adamc@1 213
adamc@1 214 %%
adamc@1 215
adamc@1 216 file : decls (decls)
adamc@54 217 | SIG sgis ([(DSgn ("?", (SgnConst sgis, s (SIGleft, sgisright))),
adamc@54 218 s (SIGleft, sgisright))])
adamc@1 219
adamc@1 220 decls : ([])
adamc@1 221 | decl decls (decl :: decls)
adamc@1 222
adamc@1 223 decl : CON SYMBOL EQ cexp (DCon (SYMBOL, NONE, cexp), s (CONleft, cexpright))
adamc@1 224 | CON SYMBOL DCOLON kind EQ cexp (DCon (SYMBOL, SOME kind, cexp), s (CONleft, cexpright))
adamc@7 225 | LTYPE SYMBOL EQ cexp (DCon (SYMBOL, SOME (KType, s (LTYPEleft, cexpright)), cexp),
adamc@7 226 s (LTYPEleft, cexpright))
adamc@191 227 | DATATYPE SYMBOL dargs EQ barOpt dcons(DDatatype (SYMBOL, dargs, dcons), s (DATATYPEleft, dconsright))
adamc@191 228 | DATATYPE SYMBOL dargs EQ DATATYPE CSYMBOL DOT path
adamc@191 229 (case dargs of
adamc@191 230 [] => (DDatatypeImp (SYMBOL, CSYMBOL :: #1 path, #2 path), s (DATATYPEleft, pathright))
adamc@191 231 | _ => raise Fail "Arguments specified for imported datatype")
adamc@123 232 | VAL vali (DVal vali, s (VALleft, valiright))
adamc@123 233 | VAL REC valis (DValRec valis, s (VALleft, valisright))
adamc@1 234
adamc@30 235 | SIGNATURE CSYMBOL EQ sgn (DSgn (CSYMBOL, sgn), s (SIGNATUREleft, sgnright))
adamc@30 236 | STRUCTURE CSYMBOL EQ str (DStr (CSYMBOL, NONE, str), s (STRUCTUREleft, strright))
adamc@30 237 | STRUCTURE CSYMBOL COLON sgn EQ str (DStr (CSYMBOL, SOME sgn, str), s (STRUCTUREleft, strright))
adamc@42 238 | FUNCTOR CSYMBOL LPAREN CSYMBOL COLON sgn RPAREN EQ str
adamc@42 239 (DStr (CSYMBOL1, NONE,
adamc@42 240 (StrFun (CSYMBOL2, sgn1, NONE, str), s (FUNCTORleft, strright))),
adamc@42 241 s (FUNCTORleft, strright))
adamc@42 242 | FUNCTOR CSYMBOL LPAREN CSYMBOL COLON sgn RPAREN COLON sgn EQ str
adamc@42 243 (DStr (CSYMBOL1, NONE,
adamc@42 244 (StrFun (CSYMBOL2, sgn1, SOME sgn2, str), s (FUNCTORleft, strright))),
adamc@42 245 s (FUNCTORleft, strright))
adamc@48 246 | EXTERN STRUCTURE CSYMBOL COLON sgn (DFfiStr (CSYMBOL, sgn), s (EXTERNleft, sgnright))
adamc@61 247 | OPEN mpath (case mpath of
adamc@61 248 [] => raise Fail "Impossible mpath parse [1]"
adamc@61 249 | m :: ms => (DOpen (m, ms), s (OPENleft, mpathright)))
adamc@88 250 | OPEN CONSTRAINTS mpath (case mpath of
adamc@88 251 [] => raise Fail "Impossible mpath parse [3]"
adamc@88 252 | m :: ms => (DOpenConstraints (m, ms), s (OPENleft, mpathright)))
adamc@88 253 | CONSTRAINT cterm TWIDDLE cterm (DConstraint (cterm1, cterm2), s (CONSTRAINTleft, ctermright))
adamc@109 254 | EXPORT spath (DExport spath, s (EXPORTleft, spathright))
adamc@203 255 | TABLE SYMBOL COLON cexp (DTable (SYMBOL, entable cexp), s (TABLEleft, cexpright))
adamc@211 256 | CLASS SYMBOL EQ cexp (DClass (SYMBOL, cexp), s (CLASSleft, cexpright))
adamc@211 257 | CLASS SYMBOL SYMBOL EQ cexp (let
adamc@211 258 val loc = s (CLASSleft, cexpright)
adamc@211 259 val k = (KType, loc)
adamc@211 260 val c = (CAbs (SYMBOL2, SOME k, cexp), loc)
adamc@211 261 in
adamc@211 262 (DClass (SYMBOL1, c), s (CLASSleft, cexpright))
adamc@211 263 end)
adamc@30 264
adamc@191 265 dargs : ([])
adamc@191 266 | SYMBOL dargs (SYMBOL :: dargs)
adamc@191 267
adamc@156 268 barOpt : ()
adamc@156 269 | BAR ()
adamc@156 270
adamc@156 271 dcons : dcon ([dcon])
adamc@156 272 | dcon BAR dcons (dcon :: dcons)
adamc@156 273
adamc@156 274 dcon : CSYMBOL (CSYMBOL, NONE)
adamc@156 275 | CSYMBOL OF cexp (CSYMBOL, SOME cexp)
adamc@156 276
adamc@123 277 vali : SYMBOL EQ eexp (SYMBOL, NONE, eexp)
adamc@123 278 | SYMBOL COLON cexp EQ eexp (SYMBOL, SOME cexp, eexp)
adamc@123 279
adamc@123 280 valis : vali ([vali])
adamc@123 281 | vali AND valis (vali :: valis)
adamc@123 282
adamc@42 283 sgn : sgntm (sgntm)
adamc@40 284 | FUNCTOR LPAREN CSYMBOL COLON sgn RPAREN COLON sgn
adamc@40 285 (SgnFun (CSYMBOL, sgn1, sgn2), s (FUNCTORleft, sgn2right))
adamc@30 286
adamc@42 287 sgntm : SIG sgis END (SgnConst sgis, s (SIGleft, ENDright))
adamc@59 288 | mpath (case mpath of
adamc@61 289 [] => raise Fail "Impossible mpath parse [2]"
adamc@59 290 | [x] => SgnVar x
adamc@59 291 | m :: ms => SgnProj (m,
adamc@59 292 List.take (ms, length ms - 1),
adamc@59 293 List.nth (ms, length ms - 1)),
adamc@59 294 s (mpathleft, mpathright))
adamc@42 295 | sgntm WHERE CON SYMBOL EQ cexp (SgnWhere (sgntm, SYMBOL, cexp), s (sgntmleft, cexpright))
adamc@42 296 | sgntm WHERE LTYPE SYMBOL EQ cexp(SgnWhere (sgntm, SYMBOL, cexp), s (sgntmleft, cexpright))
adamc@42 297 | LPAREN sgn RPAREN (sgn)
adamc@42 298
adamc@30 299 sgi : CON SYMBOL DCOLON kind (SgiConAbs (SYMBOL, kind), s (CONleft, kindright))
adamc@30 300 | LTYPE SYMBOL (SgiConAbs (SYMBOL, (KType, s (LTYPEleft, SYMBOLright))),
adamc@30 301 s (LTYPEleft, SYMBOLright))
adamc@30 302 | CON SYMBOL EQ cexp (SgiCon (SYMBOL, NONE, cexp), s (CONleft, cexpright))
adamc@30 303 | CON SYMBOL DCOLON kind EQ cexp (SgiCon (SYMBOL, SOME kind, cexp), s (CONleft, cexpright))
adamc@30 304 | LTYPE SYMBOL EQ cexp (SgiCon (SYMBOL, SOME (KType, s (LTYPEleft, cexpright)), cexp),
adamc@30 305 s (LTYPEleft, cexpright))
adamc@191 306 | DATATYPE SYMBOL dargs EQ barOpt dcons(SgiDatatype (SYMBOL, dargs, dcons), s (DATATYPEleft, dconsright))
adamc@191 307 | DATATYPE SYMBOL dargs EQ DATATYPE CSYMBOL DOT path
adamc@191 308 (case dargs of
adamc@191 309 [] => (SgiDatatypeImp (SYMBOL, CSYMBOL :: #1 path, #2 path), s (DATATYPEleft, pathright))
adamc@191 310 | _ => raise Fail "Arguments specified for imported datatype")
adamc@30 311 | VAL SYMBOL COLON cexp (SgiVal (SYMBOL, cexp), s (VALleft, cexpright))
adamc@30 312
adamc@30 313 | STRUCTURE CSYMBOL COLON sgn (SgiStr (CSYMBOL, sgn), s (STRUCTUREleft, sgnright))
adamc@59 314 | SIGNATURE CSYMBOL EQ sgn (SgiSgn (CSYMBOL, sgn), s (SIGNATUREleft, sgnright))
adamc@42 315 | FUNCTOR CSYMBOL LPAREN CSYMBOL COLON sgn RPAREN COLON sgn
adamc@42 316 (SgiStr (CSYMBOL1,
adamc@42 317 (SgnFun (CSYMBOL2, sgn1, sgn2), s (FUNCTORleft, sgn2right))),
adamc@42 318 s (FUNCTORleft, sgn2right))
adamc@58 319 | INCLUDE sgn (SgiInclude sgn, s (INCLUDEleft, sgnright))
adamc@88 320 | CONSTRAINT cterm TWIDDLE cterm (SgiConstraint (cterm1, cterm2), s (CONSTRAINTleft, ctermright))
adamc@203 321 | TABLE SYMBOL COLON cexp (SgiTable (SYMBOL, entable cexp), s (TABLEleft, cexpright))
adamc@211 322 | CLASS SYMBOL (SgiClassAbs SYMBOL, s (CLASSleft, SYMBOLright))
adamc@211 323 | CLASS SYMBOL EQ cexp (SgiClass (SYMBOL, cexp), s (CLASSleft, cexpright))
adamc@211 324 | CLASS SYMBOL SYMBOL EQ cexp (let
adamc@211 325 val loc = s (CLASSleft, cexpright)
adamc@211 326 val k = (KType, loc)
adamc@211 327 val c = (CAbs (SYMBOL2, SOME k, cexp), loc)
adamc@211 328 in
adamc@211 329 (SgiClass (SYMBOL1, c), s (CLASSleft, cexpright))
adamc@211 330 end)
adamc@30 331
adamc@30 332 sgis : ([])
adamc@30 333 | sgi sgis (sgi :: sgis)
adamc@30 334
adamc@30 335 str : STRUCT decls END (StrConst decls, s (STRUCTleft, ENDright))
adamc@34 336 | spath (spath)
adamc@40 337 | FUNCTOR LPAREN CSYMBOL COLON sgn RPAREN DARROW str
adamc@40 338 (StrFun (CSYMBOL, sgn, NONE, str), s (FUNCTORleft, strright))
adamc@40 339 | FUNCTOR LPAREN CSYMBOL COLON sgn RPAREN COLON sgn DARROW str
adamc@40 340 (StrFun (CSYMBOL, sgn1, SOME sgn2, str), s (FUNCTORleft, strright))
adamc@44 341 | spath LPAREN str RPAREN (StrApp (spath, str), s (spathleft, RPARENright))
adamc@34 342
adamc@34 343 spath : CSYMBOL (StrVar CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@34 344 | spath DOT CSYMBOL (StrProj (spath, CSYMBOL), s (spathleft, CSYMBOLright))
adamc@30 345
adamc@1 346 kind : TYPE (KType, s (TYPEleft, TYPEright))
adamc@1 347 | NAME (KName, s (NAMEleft, NAMEright))
adamc@1 348 | LBRACE kind RBRACE (KRecord kind, s (LBRACEleft, RBRACEright))
adamc@1 349 | kind ARROW kind (KArrow (kind1, kind2), s (kind1left, kind2right))
adamc@1 350 | LPAREN kind RPAREN (#1 kind, s (LPARENleft, RPARENright))
adamc@82 351 | KUNIT (KUnit, s (KUNITleft, KUNITright))
adamc@18 352 | UNDERUNDER (KWild, s (UNDERUNDERleft, UNDERUNDERright))
adamc@207 353 | LPAREN ktuple RPAREN (KTuple ktuple, s (LPARENleft, RPARENright))
adamc@207 354
adamc@207 355 ktuple : kind STAR kind ([kind1, kind2])
adamc@207 356 | kind STAR ktuple (kind :: ktuple)
adamc@1 357
adamc@1 358 capps : cterm (cterm)
adamc@1 359 | capps cterm (CApp (capps, cterm), s (cappsleft, ctermright))
adamc@1 360
adamc@1 361 cexp : capps (capps)
adamc@1 362 | cexp ARROW cexp (TFun (cexp1, cexp2), s (cexp1left, cexp2right))
adamc@15 363 | SYMBOL kcolon kind ARROW cexp (TCFun (kcolon, SYMBOL, kind, cexp), s (SYMBOLleft, cexpright))
adamc@1 364
adamc@1 365 | cexp PLUSPLUS cexp (CConcat (cexp1, cexp2), s (cexp1left, cexp1right))
adamc@1 366
adamc@67 367 | FN SYMBOL DARROW cexp (CAbs (SYMBOL, NONE, cexp), s (FNleft, cexpright))
adamc@67 368 | FN SYMBOL DCOLON kind DARROW cexp (CAbs (SYMBOL, SOME kind, cexp), s (FNleft, cexpright))
adamc@84 369 | cterm TWIDDLE cterm DARROW cexp(CDisjoint (cterm1, cterm2, cexp), s (cterm1left, cexpright))
adamc@85 370 | cterm TWIDDLE cterm ARROW cexp (TDisjoint (cterm1, cterm2, cexp), s (cterm1left, cexpright))
adamc@1 371
adamc@8 372 | LPAREN cexp RPAREN DCOLON kind (CAnnot (cexp, kind), s (LPARENleft, kindright))
adamc@6 373
adamc@18 374 | UNDER DCOLON kind (CWild kind, s (UNDERleft, UNDERright))
adamc@195 375 | ctuple (let
adamc@195 376 val loc = s (ctupleleft, ctupleright)
adamc@195 377 in
adamc@195 378 (TRecord (CRecord (ListUtil.mapi (fn (i, c) =>
adamc@195 379 ((CName (Int.toString (i + 1)), loc),
adamc@195 380 c)) ctuple),
adamc@195 381 loc), loc)
adamc@195 382 end)
adamc@18 383
adamc@1 384 kcolon : DCOLON (Explicit)
adamc@1 385 | TCOLON (Implicit)
adamc@1 386
adamc@34 387 path : SYMBOL ([], SYMBOL)
adamc@34 388 | CSYMBOL DOT path (let val (ms, x) = path in (CSYMBOL :: ms, x) end)
adamc@34 389
adamc@156 390 cpath : CSYMBOL ([], CSYMBOL)
adamc@156 391 | CSYMBOL DOT cpath (let val (ms, x) = cpath in (CSYMBOL :: ms, x) end)
adamc@156 392
adamc@59 393 mpath : CSYMBOL ([CSYMBOL])
adamc@59 394 | CSYMBOL DOT mpath (CSYMBOL :: mpath)
adamc@59 395
adamc@1 396 cterm : LPAREN cexp RPAREN (#1 cexp, s (LPARENleft, RPARENright))
adamc@1 397 | LBRACK rcon RBRACK (CRecord rcon, s (LBRACKleft, RBRACKright))
adamc@83 398 | LBRACK rconn RBRACK (CRecord rconn, s (LBRACKleft, RBRACKright))
adamc@1 399 | LBRACE rcone RBRACE (TRecord (CRecord rcone, s (LBRACEleft, RBRACEright)),
adamc@1 400 s (LBRACEleft, RBRACEright))
adamc@1 401 | DOLLAR cterm (TRecord cterm, s (DOLLARleft, ctermright))
adamc@1 402 | HASH CSYMBOL (CName CSYMBOL, s (HASHleft, CSYMBOLright))
adamc@195 403 | HASH INT (CName (Int64.toString INT), s (HASHleft, INTright))
adamc@1 404
adamc@34 405 | path (CVar path, s (pathleft, pathright))
adamc@207 406 | path DOT INT (CProj ((CVar path, s (pathleft, pathright)), Int64.toInt INT),
adamc@207 407 s (pathleft, INTright))
adamc@18 408 | UNDER (CWild (KWild, s (UNDERleft, UNDERright)), s (UNDERleft, UNDERright))
adamc@67 409 | FOLD (CFold, s (FOLDleft, FOLDright))
adamc@82 410 | UNIT (CUnit, s (UNITleft, UNITright))
adamc@207 411 | LPAREN ctuplev RPAREN (CTuple ctuplev, s (LPARENleft, RPARENright))
adamc@207 412
adamc@207 413 ctuplev: cexp COMMA cexp ([cexp1, cexp2])
adamc@207 414 | cexp COMMA ctuplev (cexp :: ctuplev)
adamc@1 415
adamc@196 416 ctuple : capps STAR capps ([capps1, capps2])
adamc@196 417 | capps STAR ctuple (capps :: ctuple)
adamc@195 418
adamc@1 419 rcon : ([])
adamc@1 420 | ident EQ cexp ([(ident, cexp)])
adamc@1 421 | ident EQ cexp COMMA rcon ((ident, cexp) :: rcon)
adamc@1 422
adamc@83 423 rconn : ident ([(ident, (CUnit, s (identleft, identright)))])
adamc@83 424 | ident COMMA rconn ((ident, (CUnit, s (identleft, identright))) :: rconn)
adamc@83 425
adamc@1 426 rcone : ([])
adamc@1 427 | ident COLON cexp ([(ident, cexp)])
adamc@1 428 | ident COLON cexp COMMA rcone ((ident, cexp) :: rcone)
adamc@1 429
adamc@1 430 ident : CSYMBOL (CName CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@195 431 | INT (CName (Int64.toString INT), s (INTleft, INTright))
adamc@200 432 | SYMBOL (CVar ([], SYMBOL), s (SYMBOLleft, SYMBOLright))
adamc@8 433
adamc@8 434 eapps : eterm (eterm)
adamc@8 435 | eapps eterm (EApp (eapps, eterm), s (eappsleft, etermright))
adamc@8 436 | eapps LBRACK cexp RBRACK (ECApp (eapps, cexp), s (eappsleft, RBRACKright))
adamc@8 437
adamc@8 438 eexp : eapps (eapps)
adamc@8 439 | FN SYMBOL kcolon kind DARROW eexp (ECAbs (kcolon, SYMBOL, kind, eexp), s (FNleft, eexpright))
adamc@8 440 | FN SYMBOL COLON cexp DARROW eexp (EAbs (SYMBOL, SOME cexp, eexp), s (FNleft, eexpright))
adamc@8 441 | FN SYMBOL DARROW eexp (EAbs (SYMBOL, NONE, eexp), s (FNleft, eexpright))
adamc@212 442 | FN UNDER COLON cexp DARROW eexp (EAbs ("_", SOME cexp, eexp), s (FNleft, eexpright))
adamc@93 443 | LBRACK cterm TWIDDLE cterm RBRACK DARROW eexp(EDisjoint (cterm1, cterm2, eexp), s (LBRACKleft, RBRACKright))
adamc@93 444 | FN UNIT DARROW eexp (let
adamc@93 445 val loc = s (FNleft, eexpright)
adamc@93 446 in
adamc@93 447 (EAbs ("_", SOME (TRecord (CRecord [], loc), loc), eexp), loc)
adamc@93 448 end)
adamc@8 449
adamc@196 450 | eexp COLON cexp (EAnnot (eexp, cexp), s (eexpleft, cexpright))
adamc@149 451 | eexp MINUSMINUS cexp (ECut (eexp, cexp), s (eexpleft, cexpright))
adamc@170 452 | CASE eexp OF barOpt branch branchs (ECase (eexp, branch :: branchs), s (CASEleft, branchsright))
adamc@190 453 | IF eexp THEN eexp ELSE eexp (let
adamc@190 454 val loc = s (IFleft, eexp3right)
adamc@190 455 in
adamc@190 456 (ECase (eexp1, [((PCon (["Basis"], "True", NONE), loc), eexp2),
adamc@190 457 ((PCon (["Basis"], "False", NONE), loc), eexp3)]), loc)
adamc@190 458 end)
adamc@8 459
adamc@8 460 eterm : LPAREN eexp RPAREN (#1 eexp, s (LPARENleft, RPARENright))
adamc@195 461 | LPAREN etuple RPAREN (let
adamc@195 462 val loc = s (LPARENleft, RPARENright)
adamc@195 463 in
adamc@195 464 (ERecord (ListUtil.mapi (fn (i, e) =>
adamc@195 465 ((CName (Int.toString (i + 1)), loc),
adamc@195 466 e)) etuple), loc)
adamc@195 467 end)
adamc@8 468
adamc@34 469 | path (EVar path, s (pathleft, pathright))
adamc@156 470 | cpath (EVar cpath, s (cpathleft, cpathright))
adamc@12 471 | LBRACE rexp RBRACE (ERecord rexp, s (LBRACEleft, RBRACEright))
adamc@110 472 | UNIT (ERecord [], s (UNITleft, UNITright))
adamc@12 473
adamc@14 474 | INT (EPrim (Prim.Int INT), s (INTleft, INTright))
adamc@14 475 | FLOAT (EPrim (Prim.Float FLOAT), s (FLOATleft, FLOATright))
adamc@14 476 | STRING (EPrim (Prim.String STRING), s (STRINGleft, STRINGright))
adamc@14 477
adamc@200 478 | path DOT idents (let
adamc@200 479 val loc = s (pathleft, identsright)
adamc@200 480 in
adamc@200 481 foldl (fn (ident, e) =>
adamc@200 482 (EField (e, ident), loc))
adamc@200 483 (EVar path, s (pathleft, pathright)) idents
adamc@200 484 end)
adamc@71 485 | FOLD (EFold, s (FOLDleft, FOLDright))
adamc@71 486
adamc@91 487 | XML_BEGIN xml XML_END (xml)
adamc@91 488 | XML_BEGIN XML_END (EApp ((EVar (["Basis"], "cdata"), s (XML_BEGINleft, XML_ENDright)),
adamc@91 489 (EPrim (Prim.String ""), s (XML_BEGINleft, XML_ENDright))),
adamc@91 490 s (XML_BEGINleft, XML_ENDright))
adamc@204 491 | LPAREN query RPAREN (query)
adamc@211 492 | UNDER (EWild, s (UNDERleft, UNDERright))
adamc@91 493
adamc@200 494 idents : ident ([ident])
adamc@200 495 | ident DOT idents (ident :: idents)
adamc@200 496
adamc@195 497 etuple : eexp COMMA eexp ([eexp1, eexp2])
adamc@195 498 | eexp COMMA etuple (eexp :: etuple)
adamc@195 499
adamc@170 500 branch : pat DARROW eexp (pat, eexp)
adamc@170 501
adamc@170 502 branchs: ([])
adamc@170 503 | BAR branch branchs (branch :: branchs)
adamc@170 504
adamc@170 505 pat : pterm (pterm)
adamc@170 506 | cpath pterm (PCon (#1 cpath, #2 cpath, SOME pterm), s (cpathleft, ptermright))
adamc@170 507
adamc@170 508 pterm : SYMBOL (PVar SYMBOL, s (SYMBOLleft, SYMBOLright))
adamc@170 509 | cpath (PCon (#1 cpath, #2 cpath, NONE), s (cpathleft, cpathright))
adamc@170 510 | UNDER (PWild, s (UNDERleft, UNDERright))
adamc@173 511 | INT (PPrim (Prim.Int INT), s (INTleft, INTright))
adamc@173 512 | STRING (PPrim (Prim.String STRING), s (STRINGleft, STRINGright))
adamc@170 513 | LPAREN pat RPAREN (pat)
adamc@174 514 | LBRACE RBRACE (PRecord ([], false), s (LBRACEleft, RBRACEright))
adamc@174 515 | UNIT (PRecord ([], false), s (UNITleft, UNITright))
adamc@174 516 | LBRACE rpat RBRACE (PRecord rpat, s (LBRACEleft, RBRACEright))
adamc@195 517 | LPAREN ptuple RPAREN (PRecord (ListUtil.mapi (fn (i, p) => (Int.toString (i + 1), p)) ptuple,
adamc@195 518 false),
adamc@195 519 s (LPARENleft, RPARENright))
adamc@174 520
adamc@175 521 rpat : CSYMBOL EQ pat ([(CSYMBOL, pat)], false)
adamc@174 522 | DOTDOTDOT ([], true)
adamc@175 523 | CSYMBOL EQ pat COMMA rpat ((CSYMBOL, pat) :: #1 rpat, #2 rpat)
adamc@170 524
adamc@195 525 ptuple : pat COMMA pat ([pat1, pat2])
adamc@195 526 | pat COMMA ptuple (pat :: ptuple)
adamc@195 527
adamc@12 528 rexp : ([])
adamc@12 529 | ident EQ eexp ([(ident, eexp)])
adamc@12 530 | ident EQ eexp COMMA rexp ((ident, eexp) :: rexp)
adamc@91 531
adamc@141 532 xml : xmlOne xml (let
adamc@141 533 val pos = s (xmlOneleft, xmlright)
adamc@141 534 in
adamc@141 535 (EApp ((EApp (
adamc@141 536 (EVar (["Basis"], "join"), pos),
adamc@91 537 xmlOne), pos),
adamc@141 538 xml), pos)
adamc@141 539 end)
adamc@141 540 | xmlOne (xmlOne)
adamc@91 541
adamc@141 542 xmlOne : NOTAGS (EApp ((EVar (["Basis"], "cdata"), s (NOTAGSleft, NOTAGSright)),
adamc@141 543 (EPrim (Prim.String NOTAGS), s (NOTAGSleft, NOTAGSright))),
adamc@141 544 s (NOTAGSleft, NOTAGSright))
adamc@141 545 | tag DIVIDE GT (let
adamc@141 546 val pos = s (tagleft, GTright)
adamc@141 547 in
adamc@141 548 (EApp (#2 tag,
adamc@141 549 (EApp ((EVar (["Basis"], "cdata"), pos),
adamc@141 550 (EPrim (Prim.String ""), pos)),
adamc@141 551 pos)), pos)
adamc@141 552 end)
adamc@141 553
adamc@141 554 | tag GT xml END_TAG (let
adamc@141 555 val pos = s (tagleft, GTright)
adamc@141 556 in
adamc@141 557 if #1 tag = END_TAG then
adamc@141 558 if END_TAG = "lform" then
adamc@141 559 (EApp ((EVar (["Basis"], "lform"), pos),
adamc@141 560 xml), pos)
adamc@141 561 else
adamc@141 562 (EApp (#2 tag, xml), pos)
adamc@141 563 else
adamc@141 564 (ErrorMsg.errorAt pos "Begin and end tags don't match.";
adamc@141 565 (EFold, pos))
adamc@141 566 end)
adamc@141 567 | LBRACE eexp RBRACE (eexp)
adamc@92 568
adamc@141 569 tag : tagHead attrs (let
adamc@141 570 val pos = s (tagHeadleft, attrsright)
adamc@141 571 in
adamc@141 572 (#1 tagHead,
adamc@141 573 (EApp ((EApp ((EVar (["Basis"], "tag"), pos),
adamc@141 574 (ERecord attrs, pos)), pos),
adamc@141 575 (EApp (#2 tagHead,
adamc@141 576 (ERecord [], pos)), pos)),
adamc@141 577 pos))
adamc@141 578 end)
adamc@141 579
adamc@141 580 tagHead: BEGIN_TAG (let
adamc@141 581 val pos = s (BEGIN_TAGleft, BEGIN_TAGright)
adamc@141 582 in
adamc@141 583 (BEGIN_TAG,
adamc@141 584 (EVar ([], BEGIN_TAG), pos))
adamc@141 585 end)
adamc@141 586 | tagHead LBRACE cexp RBRACE (#1 tagHead, (ECApp (#2 tagHead, cexp), s (tagHeadleft, RBRACEright)))
adamc@92 587
adamc@104 588 attrs : ([])
adamc@104 589 | attr attrs (attr :: attrs)
adamc@104 590
adamc@204 591 attr : SYMBOL EQ attrv ((CName (capitalize SYMBOL), s (SYMBOLleft, SYMBOLright)), attrv)
adamc@204 592
adamc@104 593 attrv : INT (EPrim (Prim.Int INT), s (INTleft, INTright))
adamc@104 594 | FLOAT (EPrim (Prim.Float FLOAT), s (FLOATleft, FLOATright))
adamc@104 595 | STRING (EPrim (Prim.String STRING), s (STRINGleft, STRINGright))
adamc@110 596 | LBRACE eexp RBRACE (eexp)
adamc@204 597
adamc@209 598 query : SELECT select FROM tables wopt
adamc@209 599 (let
adamc@204 600 val loc = s (SELECTleft, tablesright)
adamc@207 601
adamc@207 602 val sel =
adamc@207 603 case select of
adamc@207 604 Star => map (fn (nm, _) =>
adamc@207 605 (nm, (CTuple [(CWild (KRecord (KType, loc), loc),
adamc@207 606 loc),
adamc@207 607 (CRecord [], loc)],
adamc@207 608 loc))) tables
adamc@207 609 | Items sis =>
adamc@207 610 let
adamc@207 611 val tabs = map (fn (nm, _) => (nm, (CRecord [], loc))) tables
adamc@207 612 val tabs = foldl (amend_select loc) tabs sis
adamc@207 613 in
adamc@207 614 map (fn (nm, c) => (nm,
adamc@207 615 (CTuple [c,
adamc@207 616 (CWild (KRecord (KType, loc), loc),
adamc@207 617 loc)], loc))) tabs
adamc@207 618 end
adamc@207 619
adamc@207 620 val sel = (CRecord sel, loc)
adamc@207 621
adamc@207 622 val e = (EVar (["Basis"], "sql_query"), loc)
adamc@207 623 val e = (ECApp (e, sel), loc)
adamc@209 624 val re = (ERecord [((CName "From", loc),
adamc@209 625 (ERecord tables, loc)),
adamc@209 626 ((CName "Where", loc),
adamc@209 627 wopt)], loc)
adamc@209 628 val e = (EApp (e, re), loc)
adamc@204 629 in
adamc@207 630 e
adamc@204 631 end)
adamc@204 632
adamc@204 633 tables : table ([table])
adamc@204 634 | table COMMA tables (table :: tables)
adamc@204 635
adamc@204 636 tname : CSYMBOL (CName CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@204 637 | LBRACE cexp RBRACE (cexp)
adamc@204 638
adamc@207 639 table : SYMBOL ((CName SYMBOL, s (SYMBOLleft, SYMBOLright)),
adamc@204 640 (EVar ([], SYMBOL), s (SYMBOLleft, SYMBOLright)))
adamc@204 641 | SYMBOL AS tname (tname, (EVar ([], SYMBOL), s (SYMBOLleft, SYMBOLright)))
adamc@204 642 | LBRACE eexp RBRACE AS tname (tname, eexp)
adamc@207 643
adamc@207 644 tident : SYMBOL (CName SYMBOL, s (SYMBOLleft, SYMBOLright))
adamc@207 645 | CSYMBOL (CName CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@207 646 | LBRACE cexp RBRACE (cexp)
adamc@207 647
adamc@207 648 fident : CSYMBOL (CName CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@207 649 | LBRACE cexp RBRACE (cexp)
adamc@207 650
adamc@207 651 seli : tident DOT fident (Field (tident, fident))
adamc@207 652
adamc@207 653 selis : seli ([seli])
adamc@207 654 | seli COMMA selis (seli :: selis)
adamc@207 655
adamc@207 656 select : STAR (Star)
adamc@207 657 | selis (Items selis)
adamc@209 658
adamc@209 659 sqlexp : TRUE (sql_inject (EVar (["Basis"], "True"),
adamc@209 660 EVar (["Basis"], "sql_bool"),
adamc@209 661 s (TRUEleft, TRUEright)))
adamc@209 662 | FALSE (sql_inject (EVar (["Basis"], "False"),
adamc@209 663 EVar (["Basis"], "sql_bool"),
adamc@209 664 s (FALSEleft, FALSEright)))
adamc@209 665
adamc@219 666 | sqlexp EQ sqlexp (sql_compare ("eq", sqlexp1, sqlexp2, s (sqlexp1left, sqlexp2right)))
adamc@219 667 | sqlexp NE sqlexp (sql_compare ("ne", sqlexp1, sqlexp2, s (sqlexp1left, sqlexp2right)))
adamc@219 668 | sqlexp LT sqlexp (sql_compare ("lt", sqlexp1, sqlexp2, s (sqlexp1left, sqlexp2right)))
adamc@219 669 | sqlexp LE sqlexp (sql_compare ("le", sqlexp1, sqlexp2, s (sqlexp1left, sqlexp2right)))
adamc@219 670 | sqlexp GT sqlexp (sql_compare ("gt", sqlexp1, sqlexp2, s (sqlexp1left, sqlexp2right)))
adamc@219 671 | sqlexp GE sqlexp (sql_compare ("ge", sqlexp1, sqlexp2, s (sqlexp1left, sqlexp2right)))
adamc@219 672
adamc@210 673 | LBRACE eexp RBRACE (sql_inject (#1 eexp,
adamc@211 674 EWild,
adamc@210 675 s (LBRACEleft, RBRACEright)))
adamc@210 676
adamc@209 677 wopt : (sql_inject (EVar (["Basis"], "True"),
adamc@209 678 EVar (["Basis"], "sql_bool"),
adamc@209 679 ErrorMsg.dummySpan))
adamc@209 680 | CWHERE sqlexp (sqlexp)