annotate src/lacweb.grm @ 204:241c9a0e3397

Parsing the simplest SQL query
author Adam Chlipala <adamc@hcoop.net>
date Thu, 14 Aug 2008 13:59:11 -0400
parents dd82457fda82
children cc68da3801bc
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@1 42 %%
adamc@1 43 %header (functor LacwebLrValsFn(structure Token : TOKEN))
adamc@1 44
adamc@1 45 %term
adamc@1 46 EOF
adamc@14 47 | STRING of string | INT of Int64.int | FLOAT of Real64.real
adamc@1 48 | SYMBOL of string | CSYMBOL of string
adamc@1 49 | LPAREN | RPAREN | LBRACK | RBRACK | LBRACE | RBRACE
adamc@156 50 | EQ | COMMA | COLON | DCOLON | TCOLON | DOT | HASH | UNDER | UNDERUNDER | BAR
adamc@174 51 | DIVIDE | GT | DOTDOTDOT
adamc@123 52 | CON | LTYPE | VAL | REC | AND | FOLD | UNIT | KUNIT
adamc@156 53 | DATATYPE | OF
adamc@7 54 | TYPE | NAME
adamc@195 55 | ARROW | LARROW | DARROW | STAR
adamc@149 56 | FN | PLUSPLUS | MINUSMINUS | DOLLAR | TWIDDLE
adamc@88 57 | STRUCTURE | SIGNATURE | STRUCT | SIG | END | FUNCTOR | WHERE | EXTERN
adamc@203 58 | INCLUDE | OPEN | CONSTRAINT | CONSTRAINTS | EXPORT | TABLE
adamc@190 59 | CASE | IF | THEN | ELSE
adamc@1 60
adamc@91 61 | XML_BEGIN of string | XML_END
adamc@91 62 | NOTAGS of string
adamc@91 63 | BEGIN_TAG of string | END_TAG of string
adamc@91 64
adamc@204 65 | SELECT | FROM | AS
adamc@204 66
adamc@30 67 %nonterm
adamc@1 68 file of decl list
adamc@1 69 | decls of decl list
adamc@1 70 | decl of decl
adamc@123 71 | vali of string * con option * exp
adamc@123 72 | valis of (string * con option * exp) list
adamc@1 73
adamc@191 74 | dargs of string list
adamc@156 75 | barOpt of unit
adamc@156 76 | dcons of (string * con option) list
adamc@156 77 | dcon of string * con option
adamc@156 78
adamc@30 79 | sgn of sgn
adamc@42 80 | sgntm of sgn
adamc@30 81 | sgi of sgn_item
adamc@30 82 | sgis of sgn_item list
adamc@30 83
adamc@30 84 | str of str
adamc@30 85
adamc@1 86 | kind of kind
adamc@1 87 | kcolon of explicitness
adamc@1 88
adamc@34 89 | path of string list * string
adamc@156 90 | cpath of string list * string
adamc@34 91 | spath of str
adamc@59 92 | mpath of string list
adamc@34 93
adamc@1 94 | cexp of con
adamc@1 95 | capps of con
adamc@1 96 | cterm of con
adamc@195 97 | ctuple of con list
adamc@1 98 | ident of con
adamc@200 99 | idents of con list
adamc@1 100 | rcon of (con * con) list
adamc@83 101 | rconn of (con * con) list
adamc@1 102 | rcone of (con * con) list
adamc@1 103
adamc@8 104 | eexp of exp
adamc@8 105 | eapps of exp
adamc@8 106 | eterm of exp
adamc@195 107 | etuple of exp list
adamc@12 108 | rexp of (con * exp) list
adamc@91 109 | xml of exp
adamc@91 110 | xmlOne of exp
adamc@141 111 | tag of string * exp
adamc@141 112 | tagHead of string * exp
adamc@8 113
adamc@170 114 | branch of pat * exp
adamc@170 115 | branchs of (pat * exp) list
adamc@170 116 | pat of pat
adamc@170 117 | pterm of pat
adamc@174 118 | rpat of (string * pat) list * bool
adamc@195 119 | ptuple of pat list
adamc@170 120
adamc@104 121 | attrs of (con * exp) list
adamc@104 122 | attr of con * exp
adamc@104 123 | attrv of exp
adamc@104 124
adamc@204 125 | query of exp
adamc@204 126 | tables of (con * exp) list
adamc@204 127 | tname of con
adamc@204 128 | table of con * exp
adamc@204 129
adamc@1 130 %verbose (* print summary of errors *)
adamc@1 131 %pos int (* positions *)
adamc@1 132 %start file
adamc@1 133 %pure
adamc@1 134 %eop EOF
adamc@1 135 %noshift EOF
adamc@1 136
adamc@1 137 %name Lacweb
adamc@1 138
adamc@195 139 %nonassoc IF THEN ELSE
adamc@1 140 %nonassoc DARROW
adamc@1 141 %nonassoc COLON
adamc@6 142 %nonassoc DCOLON TCOLON
adamc@1 143 %right COMMA
adamc@1 144 %right ARROW LARROW
adamc@149 145 %right PLUSPLUS MINUSMINUS
adamc@195 146 %right STAR
adamc@84 147 %nonassoc TWIDDLE
adamc@1 148 %nonassoc DOLLAR
adamc@1 149 %left DOT
adamc@1 150
adamc@1 151 %%
adamc@1 152
adamc@1 153 file : decls (decls)
adamc@54 154 | SIG sgis ([(DSgn ("?", (SgnConst sgis, s (SIGleft, sgisright))),
adamc@54 155 s (SIGleft, sgisright))])
adamc@1 156
adamc@1 157 decls : ([])
adamc@1 158 | decl decls (decl :: decls)
adamc@1 159
adamc@1 160 decl : CON SYMBOL EQ cexp (DCon (SYMBOL, NONE, cexp), s (CONleft, cexpright))
adamc@1 161 | CON SYMBOL DCOLON kind EQ cexp (DCon (SYMBOL, SOME kind, cexp), s (CONleft, cexpright))
adamc@7 162 | LTYPE SYMBOL EQ cexp (DCon (SYMBOL, SOME (KType, s (LTYPEleft, cexpright)), cexp),
adamc@7 163 s (LTYPEleft, cexpright))
adamc@191 164 | DATATYPE SYMBOL dargs EQ barOpt dcons(DDatatype (SYMBOL, dargs, dcons), s (DATATYPEleft, dconsright))
adamc@191 165 | DATATYPE SYMBOL dargs EQ DATATYPE CSYMBOL DOT path
adamc@191 166 (case dargs of
adamc@191 167 [] => (DDatatypeImp (SYMBOL, CSYMBOL :: #1 path, #2 path), s (DATATYPEleft, pathright))
adamc@191 168 | _ => raise Fail "Arguments specified for imported datatype")
adamc@123 169 | VAL vali (DVal vali, s (VALleft, valiright))
adamc@123 170 | VAL REC valis (DValRec valis, s (VALleft, valisright))
adamc@1 171
adamc@30 172 | SIGNATURE CSYMBOL EQ sgn (DSgn (CSYMBOL, sgn), s (SIGNATUREleft, sgnright))
adamc@30 173 | STRUCTURE CSYMBOL EQ str (DStr (CSYMBOL, NONE, str), s (STRUCTUREleft, strright))
adamc@30 174 | STRUCTURE CSYMBOL COLON sgn EQ str (DStr (CSYMBOL, SOME sgn, str), s (STRUCTUREleft, strright))
adamc@42 175 | FUNCTOR CSYMBOL LPAREN CSYMBOL COLON sgn RPAREN EQ str
adamc@42 176 (DStr (CSYMBOL1, NONE,
adamc@42 177 (StrFun (CSYMBOL2, sgn1, NONE, str), s (FUNCTORleft, strright))),
adamc@42 178 s (FUNCTORleft, strright))
adamc@42 179 | FUNCTOR CSYMBOL LPAREN CSYMBOL COLON sgn RPAREN COLON sgn EQ str
adamc@42 180 (DStr (CSYMBOL1, NONE,
adamc@42 181 (StrFun (CSYMBOL2, sgn1, SOME sgn2, str), s (FUNCTORleft, strright))),
adamc@42 182 s (FUNCTORleft, strright))
adamc@48 183 | EXTERN STRUCTURE CSYMBOL COLON sgn (DFfiStr (CSYMBOL, sgn), s (EXTERNleft, sgnright))
adamc@61 184 | OPEN mpath (case mpath of
adamc@61 185 [] => raise Fail "Impossible mpath parse [1]"
adamc@61 186 | m :: ms => (DOpen (m, ms), s (OPENleft, mpathright)))
adamc@88 187 | OPEN CONSTRAINTS mpath (case mpath of
adamc@88 188 [] => raise Fail "Impossible mpath parse [3]"
adamc@88 189 | m :: ms => (DOpenConstraints (m, ms), s (OPENleft, mpathright)))
adamc@88 190 | CONSTRAINT cterm TWIDDLE cterm (DConstraint (cterm1, cterm2), s (CONSTRAINTleft, ctermright))
adamc@109 191 | EXPORT spath (DExport spath, s (EXPORTleft, spathright))
adamc@203 192 | TABLE SYMBOL COLON cexp (DTable (SYMBOL, entable cexp), s (TABLEleft, cexpright))
adamc@30 193
adamc@191 194 dargs : ([])
adamc@191 195 | SYMBOL dargs (SYMBOL :: dargs)
adamc@191 196
adamc@156 197 barOpt : ()
adamc@156 198 | BAR ()
adamc@156 199
adamc@156 200 dcons : dcon ([dcon])
adamc@156 201 | dcon BAR dcons (dcon :: dcons)
adamc@156 202
adamc@156 203 dcon : CSYMBOL (CSYMBOL, NONE)
adamc@156 204 | CSYMBOL OF cexp (CSYMBOL, SOME cexp)
adamc@156 205
adamc@123 206 vali : SYMBOL EQ eexp (SYMBOL, NONE, eexp)
adamc@123 207 | SYMBOL COLON cexp EQ eexp (SYMBOL, SOME cexp, eexp)
adamc@123 208
adamc@123 209 valis : vali ([vali])
adamc@123 210 | vali AND valis (vali :: valis)
adamc@123 211
adamc@42 212 sgn : sgntm (sgntm)
adamc@40 213 | FUNCTOR LPAREN CSYMBOL COLON sgn RPAREN COLON sgn
adamc@40 214 (SgnFun (CSYMBOL, sgn1, sgn2), s (FUNCTORleft, sgn2right))
adamc@30 215
adamc@42 216 sgntm : SIG sgis END (SgnConst sgis, s (SIGleft, ENDright))
adamc@59 217 | mpath (case mpath of
adamc@61 218 [] => raise Fail "Impossible mpath parse [2]"
adamc@59 219 | [x] => SgnVar x
adamc@59 220 | m :: ms => SgnProj (m,
adamc@59 221 List.take (ms, length ms - 1),
adamc@59 222 List.nth (ms, length ms - 1)),
adamc@59 223 s (mpathleft, mpathright))
adamc@42 224 | sgntm WHERE CON SYMBOL EQ cexp (SgnWhere (sgntm, SYMBOL, cexp), s (sgntmleft, cexpright))
adamc@42 225 | sgntm WHERE LTYPE SYMBOL EQ cexp(SgnWhere (sgntm, SYMBOL, cexp), s (sgntmleft, cexpright))
adamc@42 226 | LPAREN sgn RPAREN (sgn)
adamc@42 227
adamc@30 228 sgi : CON SYMBOL DCOLON kind (SgiConAbs (SYMBOL, kind), s (CONleft, kindright))
adamc@30 229 | LTYPE SYMBOL (SgiConAbs (SYMBOL, (KType, s (LTYPEleft, SYMBOLright))),
adamc@30 230 s (LTYPEleft, SYMBOLright))
adamc@30 231 | CON SYMBOL EQ cexp (SgiCon (SYMBOL, NONE, cexp), s (CONleft, cexpright))
adamc@30 232 | CON SYMBOL DCOLON kind EQ cexp (SgiCon (SYMBOL, SOME kind, cexp), s (CONleft, cexpright))
adamc@30 233 | LTYPE SYMBOL EQ cexp (SgiCon (SYMBOL, SOME (KType, s (LTYPEleft, cexpright)), cexp),
adamc@30 234 s (LTYPEleft, cexpright))
adamc@191 235 | DATATYPE SYMBOL dargs EQ barOpt dcons(SgiDatatype (SYMBOL, dargs, dcons), s (DATATYPEleft, dconsright))
adamc@191 236 | DATATYPE SYMBOL dargs EQ DATATYPE CSYMBOL DOT path
adamc@191 237 (case dargs of
adamc@191 238 [] => (SgiDatatypeImp (SYMBOL, CSYMBOL :: #1 path, #2 path), s (DATATYPEleft, pathright))
adamc@191 239 | _ => raise Fail "Arguments specified for imported datatype")
adamc@30 240 | VAL SYMBOL COLON cexp (SgiVal (SYMBOL, cexp), s (VALleft, cexpright))
adamc@30 241
adamc@30 242 | STRUCTURE CSYMBOL COLON sgn (SgiStr (CSYMBOL, sgn), s (STRUCTUREleft, sgnright))
adamc@59 243 | SIGNATURE CSYMBOL EQ sgn (SgiSgn (CSYMBOL, sgn), s (SIGNATUREleft, sgnright))
adamc@42 244 | FUNCTOR CSYMBOL LPAREN CSYMBOL COLON sgn RPAREN COLON sgn
adamc@42 245 (SgiStr (CSYMBOL1,
adamc@42 246 (SgnFun (CSYMBOL2, sgn1, sgn2), s (FUNCTORleft, sgn2right))),
adamc@42 247 s (FUNCTORleft, sgn2right))
adamc@58 248 | INCLUDE sgn (SgiInclude sgn, s (INCLUDEleft, sgnright))
adamc@88 249 | CONSTRAINT cterm TWIDDLE cterm (SgiConstraint (cterm1, cterm2), s (CONSTRAINTleft, ctermright))
adamc@203 250 | TABLE SYMBOL COLON cexp (SgiTable (SYMBOL, entable cexp), s (TABLEleft, cexpright))
adamc@30 251
adamc@30 252 sgis : ([])
adamc@30 253 | sgi sgis (sgi :: sgis)
adamc@30 254
adamc@30 255 str : STRUCT decls END (StrConst decls, s (STRUCTleft, ENDright))
adamc@34 256 | spath (spath)
adamc@40 257 | FUNCTOR LPAREN CSYMBOL COLON sgn RPAREN DARROW str
adamc@40 258 (StrFun (CSYMBOL, sgn, NONE, str), s (FUNCTORleft, strright))
adamc@40 259 | FUNCTOR LPAREN CSYMBOL COLON sgn RPAREN COLON sgn DARROW str
adamc@40 260 (StrFun (CSYMBOL, sgn1, SOME sgn2, str), s (FUNCTORleft, strright))
adamc@44 261 | spath LPAREN str RPAREN (StrApp (spath, str), s (spathleft, RPARENright))
adamc@34 262
adamc@34 263 spath : CSYMBOL (StrVar CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@34 264 | spath DOT CSYMBOL (StrProj (spath, CSYMBOL), s (spathleft, CSYMBOLright))
adamc@30 265
adamc@1 266 kind : TYPE (KType, s (TYPEleft, TYPEright))
adamc@1 267 | NAME (KName, s (NAMEleft, NAMEright))
adamc@1 268 | LBRACE kind RBRACE (KRecord kind, s (LBRACEleft, RBRACEright))
adamc@1 269 | kind ARROW kind (KArrow (kind1, kind2), s (kind1left, kind2right))
adamc@1 270 | LPAREN kind RPAREN (#1 kind, s (LPARENleft, RPARENright))
adamc@82 271 | KUNIT (KUnit, s (KUNITleft, KUNITright))
adamc@18 272 | UNDERUNDER (KWild, s (UNDERUNDERleft, UNDERUNDERright))
adamc@1 273
adamc@1 274 capps : cterm (cterm)
adamc@1 275 | capps cterm (CApp (capps, cterm), s (cappsleft, ctermright))
adamc@1 276
adamc@1 277 cexp : capps (capps)
adamc@1 278 | cexp ARROW cexp (TFun (cexp1, cexp2), s (cexp1left, cexp2right))
adamc@15 279 | SYMBOL kcolon kind ARROW cexp (TCFun (kcolon, SYMBOL, kind, cexp), s (SYMBOLleft, cexpright))
adamc@1 280
adamc@1 281 | cexp PLUSPLUS cexp (CConcat (cexp1, cexp2), s (cexp1left, cexp1right))
adamc@1 282
adamc@67 283 | FN SYMBOL DARROW cexp (CAbs (SYMBOL, NONE, cexp), s (FNleft, cexpright))
adamc@67 284 | FN SYMBOL DCOLON kind DARROW cexp (CAbs (SYMBOL, SOME kind, cexp), s (FNleft, cexpright))
adamc@84 285 | cterm TWIDDLE cterm DARROW cexp(CDisjoint (cterm1, cterm2, cexp), s (cterm1left, cexpright))
adamc@85 286 | cterm TWIDDLE cterm ARROW cexp (TDisjoint (cterm1, cterm2, cexp), s (cterm1left, cexpright))
adamc@1 287
adamc@8 288 | LPAREN cexp RPAREN DCOLON kind (CAnnot (cexp, kind), s (LPARENleft, kindright))
adamc@6 289
adamc@18 290 | UNDER DCOLON kind (CWild kind, s (UNDERleft, UNDERright))
adamc@195 291 | ctuple (let
adamc@195 292 val loc = s (ctupleleft, ctupleright)
adamc@195 293 in
adamc@195 294 (TRecord (CRecord (ListUtil.mapi (fn (i, c) =>
adamc@195 295 ((CName (Int.toString (i + 1)), loc),
adamc@195 296 c)) ctuple),
adamc@195 297 loc), loc)
adamc@195 298 end)
adamc@18 299
adamc@1 300 kcolon : DCOLON (Explicit)
adamc@1 301 | TCOLON (Implicit)
adamc@1 302
adamc@34 303 path : SYMBOL ([], SYMBOL)
adamc@34 304 | CSYMBOL DOT path (let val (ms, x) = path in (CSYMBOL :: ms, x) end)
adamc@34 305
adamc@156 306 cpath : CSYMBOL ([], CSYMBOL)
adamc@156 307 | CSYMBOL DOT cpath (let val (ms, x) = cpath in (CSYMBOL :: ms, x) end)
adamc@156 308
adamc@59 309 mpath : CSYMBOL ([CSYMBOL])
adamc@59 310 | CSYMBOL DOT mpath (CSYMBOL :: mpath)
adamc@59 311
adamc@1 312 cterm : LPAREN cexp RPAREN (#1 cexp, s (LPARENleft, RPARENright))
adamc@1 313 | LBRACK rcon RBRACK (CRecord rcon, s (LBRACKleft, RBRACKright))
adamc@83 314 | LBRACK rconn RBRACK (CRecord rconn, s (LBRACKleft, RBRACKright))
adamc@1 315 | LBRACE rcone RBRACE (TRecord (CRecord rcone, s (LBRACEleft, RBRACEright)),
adamc@1 316 s (LBRACEleft, RBRACEright))
adamc@1 317 | DOLLAR cterm (TRecord cterm, s (DOLLARleft, ctermright))
adamc@1 318 | HASH CSYMBOL (CName CSYMBOL, s (HASHleft, CSYMBOLright))
adamc@195 319 | HASH INT (CName (Int64.toString INT), s (HASHleft, INTright))
adamc@1 320
adamc@34 321 | path (CVar path, s (pathleft, pathright))
adamc@18 322 | UNDER (CWild (KWild, s (UNDERleft, UNDERright)), s (UNDERleft, UNDERright))
adamc@67 323 | FOLD (CFold, s (FOLDleft, FOLDright))
adamc@82 324 | UNIT (CUnit, s (UNITleft, UNITright))
adamc@1 325
adamc@196 326 ctuple : capps STAR capps ([capps1, capps2])
adamc@196 327 | capps STAR ctuple (capps :: ctuple)
adamc@195 328
adamc@1 329 rcon : ([])
adamc@1 330 | ident EQ cexp ([(ident, cexp)])
adamc@1 331 | ident EQ cexp COMMA rcon ((ident, cexp) :: rcon)
adamc@1 332
adamc@83 333 rconn : ident ([(ident, (CUnit, s (identleft, identright)))])
adamc@83 334 | ident COMMA rconn ((ident, (CUnit, s (identleft, identright))) :: rconn)
adamc@83 335
adamc@1 336 rcone : ([])
adamc@1 337 | ident COLON cexp ([(ident, cexp)])
adamc@1 338 | ident COLON cexp COMMA rcone ((ident, cexp) :: rcone)
adamc@1 339
adamc@1 340 ident : CSYMBOL (CName CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@195 341 | INT (CName (Int64.toString INT), s (INTleft, INTright))
adamc@200 342 | SYMBOL (CVar ([], SYMBOL), s (SYMBOLleft, SYMBOLright))
adamc@8 343
adamc@8 344 eapps : eterm (eterm)
adamc@8 345 | eapps eterm (EApp (eapps, eterm), s (eappsleft, etermright))
adamc@8 346 | eapps LBRACK cexp RBRACK (ECApp (eapps, cexp), s (eappsleft, RBRACKright))
adamc@8 347
adamc@8 348 eexp : eapps (eapps)
adamc@8 349 | FN SYMBOL kcolon kind DARROW eexp (ECAbs (kcolon, SYMBOL, kind, eexp), s (FNleft, eexpright))
adamc@8 350 | FN SYMBOL COLON cexp DARROW eexp (EAbs (SYMBOL, SOME cexp, eexp), s (FNleft, eexpright))
adamc@8 351 | FN SYMBOL DARROW eexp (EAbs (SYMBOL, NONE, eexp), s (FNleft, eexpright))
adamc@93 352 | LBRACK cterm TWIDDLE cterm RBRACK DARROW eexp(EDisjoint (cterm1, cterm2, eexp), s (LBRACKleft, RBRACKright))
adamc@93 353 | FN UNIT DARROW eexp (let
adamc@93 354 val loc = s (FNleft, eexpright)
adamc@93 355 in
adamc@93 356 (EAbs ("_", SOME (TRecord (CRecord [], loc), loc), eexp), loc)
adamc@93 357 end)
adamc@8 358
adamc@196 359 | eexp COLON cexp (EAnnot (eexp, cexp), s (eexpleft, cexpright))
adamc@149 360 | eexp MINUSMINUS cexp (ECut (eexp, cexp), s (eexpleft, cexpright))
adamc@170 361 | CASE eexp OF barOpt branch branchs (ECase (eexp, branch :: branchs), s (CASEleft, branchsright))
adamc@190 362 | IF eexp THEN eexp ELSE eexp (let
adamc@190 363 val loc = s (IFleft, eexp3right)
adamc@190 364 in
adamc@190 365 (ECase (eexp1, [((PCon (["Basis"], "True", NONE), loc), eexp2),
adamc@190 366 ((PCon (["Basis"], "False", NONE), loc), eexp3)]), loc)
adamc@190 367 end)
adamc@8 368
adamc@8 369 eterm : LPAREN eexp RPAREN (#1 eexp, s (LPARENleft, RPARENright))
adamc@195 370 | LPAREN etuple RPAREN (let
adamc@195 371 val loc = s (LPARENleft, RPARENright)
adamc@195 372 in
adamc@195 373 (ERecord (ListUtil.mapi (fn (i, e) =>
adamc@195 374 ((CName (Int.toString (i + 1)), loc),
adamc@195 375 e)) etuple), loc)
adamc@195 376 end)
adamc@8 377
adamc@34 378 | path (EVar path, s (pathleft, pathright))
adamc@156 379 | cpath (EVar cpath, s (cpathleft, cpathright))
adamc@12 380 | LBRACE rexp RBRACE (ERecord rexp, s (LBRACEleft, RBRACEright))
adamc@110 381 | UNIT (ERecord [], s (UNITleft, UNITright))
adamc@12 382
adamc@14 383 | INT (EPrim (Prim.Int INT), s (INTleft, INTright))
adamc@14 384 | FLOAT (EPrim (Prim.Float FLOAT), s (FLOATleft, FLOATright))
adamc@14 385 | STRING (EPrim (Prim.String STRING), s (STRINGleft, STRINGright))
adamc@14 386
adamc@200 387 | path DOT idents (let
adamc@200 388 val loc = s (pathleft, identsright)
adamc@200 389 in
adamc@200 390 foldl (fn (ident, e) =>
adamc@200 391 (EField (e, ident), loc))
adamc@200 392 (EVar path, s (pathleft, pathright)) idents
adamc@200 393 end)
adamc@71 394 | FOLD (EFold, s (FOLDleft, FOLDright))
adamc@71 395
adamc@91 396 | XML_BEGIN xml XML_END (xml)
adamc@91 397 | XML_BEGIN XML_END (EApp ((EVar (["Basis"], "cdata"), s (XML_BEGINleft, XML_ENDright)),
adamc@91 398 (EPrim (Prim.String ""), s (XML_BEGINleft, XML_ENDright))),
adamc@91 399 s (XML_BEGINleft, XML_ENDright))
adamc@204 400 | LPAREN query RPAREN (query)
adamc@91 401
adamc@200 402 idents : ident ([ident])
adamc@200 403 | ident DOT idents (ident :: idents)
adamc@200 404
adamc@195 405 etuple : eexp COMMA eexp ([eexp1, eexp2])
adamc@195 406 | eexp COMMA etuple (eexp :: etuple)
adamc@195 407
adamc@170 408 branch : pat DARROW eexp (pat, eexp)
adamc@170 409
adamc@170 410 branchs: ([])
adamc@170 411 | BAR branch branchs (branch :: branchs)
adamc@170 412
adamc@170 413 pat : pterm (pterm)
adamc@170 414 | cpath pterm (PCon (#1 cpath, #2 cpath, SOME pterm), s (cpathleft, ptermright))
adamc@170 415
adamc@170 416 pterm : SYMBOL (PVar SYMBOL, s (SYMBOLleft, SYMBOLright))
adamc@170 417 | cpath (PCon (#1 cpath, #2 cpath, NONE), s (cpathleft, cpathright))
adamc@170 418 | UNDER (PWild, s (UNDERleft, UNDERright))
adamc@173 419 | INT (PPrim (Prim.Int INT), s (INTleft, INTright))
adamc@173 420 | STRING (PPrim (Prim.String STRING), s (STRINGleft, STRINGright))
adamc@170 421 | LPAREN pat RPAREN (pat)
adamc@174 422 | LBRACE RBRACE (PRecord ([], false), s (LBRACEleft, RBRACEright))
adamc@174 423 | UNIT (PRecord ([], false), s (UNITleft, UNITright))
adamc@174 424 | LBRACE rpat RBRACE (PRecord rpat, s (LBRACEleft, RBRACEright))
adamc@195 425 | LPAREN ptuple RPAREN (PRecord (ListUtil.mapi (fn (i, p) => (Int.toString (i + 1), p)) ptuple,
adamc@195 426 false),
adamc@195 427 s (LPARENleft, RPARENright))
adamc@174 428
adamc@175 429 rpat : CSYMBOL EQ pat ([(CSYMBOL, pat)], false)
adamc@174 430 | DOTDOTDOT ([], true)
adamc@175 431 | CSYMBOL EQ pat COMMA rpat ((CSYMBOL, pat) :: #1 rpat, #2 rpat)
adamc@170 432
adamc@195 433 ptuple : pat COMMA pat ([pat1, pat2])
adamc@195 434 | pat COMMA ptuple (pat :: ptuple)
adamc@195 435
adamc@12 436 rexp : ([])
adamc@12 437 | ident EQ eexp ([(ident, eexp)])
adamc@12 438 | ident EQ eexp COMMA rexp ((ident, eexp) :: rexp)
adamc@91 439
adamc@141 440 xml : xmlOne xml (let
adamc@141 441 val pos = s (xmlOneleft, xmlright)
adamc@141 442 in
adamc@141 443 (EApp ((EApp (
adamc@141 444 (EVar (["Basis"], "join"), pos),
adamc@91 445 xmlOne), pos),
adamc@141 446 xml), pos)
adamc@141 447 end)
adamc@141 448 | xmlOne (xmlOne)
adamc@91 449
adamc@141 450 xmlOne : NOTAGS (EApp ((EVar (["Basis"], "cdata"), s (NOTAGSleft, NOTAGSright)),
adamc@141 451 (EPrim (Prim.String NOTAGS), s (NOTAGSleft, NOTAGSright))),
adamc@141 452 s (NOTAGSleft, NOTAGSright))
adamc@141 453 | tag DIVIDE GT (let
adamc@141 454 val pos = s (tagleft, GTright)
adamc@141 455 in
adamc@141 456 (EApp (#2 tag,
adamc@141 457 (EApp ((EVar (["Basis"], "cdata"), pos),
adamc@141 458 (EPrim (Prim.String ""), pos)),
adamc@141 459 pos)), pos)
adamc@141 460 end)
adamc@141 461
adamc@141 462 | tag GT xml END_TAG (let
adamc@141 463 val pos = s (tagleft, GTright)
adamc@141 464 in
adamc@141 465 if #1 tag = END_TAG then
adamc@141 466 if END_TAG = "lform" then
adamc@141 467 (EApp ((EVar (["Basis"], "lform"), pos),
adamc@141 468 xml), pos)
adamc@141 469 else
adamc@141 470 (EApp (#2 tag, xml), pos)
adamc@141 471 else
adamc@141 472 (ErrorMsg.errorAt pos "Begin and end tags don't match.";
adamc@141 473 (EFold, pos))
adamc@141 474 end)
adamc@141 475 | LBRACE eexp RBRACE (eexp)
adamc@92 476
adamc@141 477 tag : tagHead attrs (let
adamc@141 478 val pos = s (tagHeadleft, attrsright)
adamc@141 479 in
adamc@141 480 (#1 tagHead,
adamc@141 481 (EApp ((EApp ((EVar (["Basis"], "tag"), pos),
adamc@141 482 (ERecord attrs, pos)), pos),
adamc@141 483 (EApp (#2 tagHead,
adamc@141 484 (ERecord [], pos)), pos)),
adamc@141 485 pos))
adamc@141 486 end)
adamc@141 487
adamc@141 488 tagHead: BEGIN_TAG (let
adamc@141 489 val pos = s (BEGIN_TAGleft, BEGIN_TAGright)
adamc@141 490 in
adamc@141 491 (BEGIN_TAG,
adamc@141 492 (EVar ([], BEGIN_TAG), pos))
adamc@141 493 end)
adamc@141 494 | tagHead LBRACE cexp RBRACE (#1 tagHead, (ECApp (#2 tagHead, cexp), s (tagHeadleft, RBRACEright)))
adamc@92 495
adamc@104 496 attrs : ([])
adamc@104 497 | attr attrs (attr :: attrs)
adamc@104 498
adamc@204 499 attr : SYMBOL EQ attrv ((CName (capitalize SYMBOL), s (SYMBOLleft, SYMBOLright)), attrv)
adamc@204 500
adamc@104 501 attrv : INT (EPrim (Prim.Int INT), s (INTleft, INTright))
adamc@104 502 | FLOAT (EPrim (Prim.Float FLOAT), s (FLOATleft, FLOATright))
adamc@104 503 | STRING (EPrim (Prim.String STRING), s (STRINGleft, STRINGright))
adamc@110 504 | LBRACE eexp RBRACE (eexp)
adamc@204 505
adamc@204 506 query : SELECT STAR FROM tables (let
adamc@204 507 val loc = s (SELECTleft, tablesright)
adamc@204 508 in
adamc@204 509 (EApp ((EVar (["Basis"], "sql_query"), loc),
adamc@204 510 (ERecord tables, loc)), loc)
adamc@204 511 end)
adamc@204 512
adamc@204 513 tables : table ([table])
adamc@204 514 | table COMMA tables (table :: tables)
adamc@204 515
adamc@204 516 tname : CSYMBOL (CName CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
adamc@204 517 | LBRACE cexp RBRACE (cexp)
adamc@204 518
adamc@204 519 table : SYMBOL ((CName (capitalize SYMBOL), s (SYMBOLleft, SYMBOLright)),
adamc@204 520 (EVar ([], SYMBOL), s (SYMBOLleft, SYMBOLright)))
adamc@204 521 | SYMBOL AS tname (tname, (EVar ([], SYMBOL), s (SYMBOLleft, SYMBOLright)))
adamc@204 522 | LBRACE eexp RBRACE AS tname (tname, eexp)