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1 | (* HCoop Domtool (http://hcoop.sourceforge.net/) |
2 | * Copyright (c) 2006, Adam Chlipala |
3 | * |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU General Public License |
6 | * as published by the Free Software Foundation; either version 2 |
7 | * of the License, or (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
17 | *) |
18 | |
19 | (* Parser for Domtool configuration files *) |
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20 | |
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21 | open Ast |
22 | |
23 | %% |
24 | %header (functor DomtoolLrValsFn(structure Token : TOKEN)) |
25 | |
26 | %term |
27 | EOF |
28 | | SYMBOL of string | CSYMBOL of string |
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29 | | STRING of string | DOC of string |
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30 | | INT of int |
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31 | | ARROW | DARROW | LARROW |
32 | | COLON | CARET | BANG | AND |
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33 | | LPAREN | RPAREN | LBRACK | RBRACK | LBRACE | RBRACE |
34 | | EQ | COMMA | BSLASH | SEMI | LET | IN | END |
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35 | | ROOT |
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36 | | EXTERN | TYPE | VAL | WITH |
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37 | |
38 | %nonterm |
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39 | file of file |
40 | | decls of decl list |
41 | | decl of decl |
42 | | decl' of decl' |
43 | | docOpt of string option |
44 | | expOpt of exp option |
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45 | | exp of exp |
46 | | apps of exp |
47 | | term of exp |
48 | | elist of exp list |
49 | | elistNe of exp list |
50 | | clist of exp list |
51 | | typ of typ |
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52 | | ctxt of pred |
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53 | | recd of record |
54 | | recdNe of record |
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55 | |
56 | %verbose (* print summary of errors *) |
57 | %pos int (* positions *) |
58 | %start file |
59 | %pure |
60 | %eop EOF |
61 | %noshift EOF |
62 | |
63 | %name Domtool |
64 | |
65 | %right SEMI |
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66 | %nonassoc COLON |
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67 | %nonassoc IN |
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68 | %right ARROW DARROW |
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69 | %right COMMA |
70 | %nonassoc EQ |
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71 | %right AND |
72 | %nonassoc CARET BANG |
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73 | |
74 | %% |
75 | |
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76 | file : decls expOpt (decls, expOpt) |
77 | |
78 | decls : ([]) |
79 | | decl SEMI decls (decl :: decls) |
80 | |
81 | decl : decl' docOpt (decl', docOpt, (decl'left, docOptright)) |
82 | |
83 | decl' : EXTERN TYPE SYMBOL (DExternType SYMBOL) |
84 | | EXTERN VAL SYMBOL COLON typ (DExternVal (SYMBOL, typ)) |
85 | |
86 | docOpt : (NONE) |
87 | | DOC (SOME DOC) |
88 | |
89 | expOpt : (NONE) |
90 | | exp (SOME (ELocal exp, (expleft, expright))) |
91 | |
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92 | |
93 | exp : apps (apps) |
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94 | | BSLASH SYMBOL COLON LPAREN typ RPAREN ARROW exp (ELam (SYMBOL, SOME typ, exp), |
95 | (BSLASHleft, expright)) |
96 | | BSLASH SYMBOL ARROW exp (ELam (SYMBOL, NONE, exp), (BSLASHleft, expright)) |
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97 | | CSYMBOL EQ exp (ESet (CSYMBOL, exp), (CSYMBOLleft, expright)) |
98 | | exp SEMI exp (let |
99 | val ls = case #1 exp2 of |
100 | ESeq ls => exp :: ls |
101 | | _ => [exp1, exp2] |
102 | in |
103 | (ESeq ls, (exp1left, exp2right)) |
104 | end) |
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105 | | SYMBOL LARROW CSYMBOL SEMI exp (EGet (SYMBOL, CSYMBOL, exp), (SYMBOLleft, expright)) |
106 | | apps WITH END (EWith (apps, (ESkip, (WITHleft, ENDright))), (appsleft, ENDright)) |
107 | | apps WITH exp END (EWith (apps, exp), (appsleft, ENDright)) |
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108 | |
109 | apps : term (term) |
110 | | apps term (EApp (apps, term), (appsleft, termright)) |
111 | |
112 | term : LPAREN exp RPAREN (exp) |
113 | | INT (EInt INT, (INTleft, INTright)) |
114 | | STRING (EString STRING, (STRINGleft, STRINGright)) |
115 | | LBRACK elist RBRACK (EList elist, (LBRACKleft, RBRACKright)) |
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116 | | LET exp IN exp END (ELocal (ESeq [exp1, exp2], (LETleft, ENDright)), |
117 | (LETleft, ENDright)) |
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118 | | SYMBOL (EVar SYMBOL, (SYMBOLleft, SYMBOLright)) |
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119 | |
120 | elist : ([]) |
121 | | elistNe (elistNe) |
122 | |
123 | elistNe: exp ([exp]) |
124 | | exp COMMA elistNe (exp :: elistNe) |
125 | |
126 | typ : SYMBOL (TBase SYMBOL, (SYMBOLleft, SYMBOLright)) |
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127 | | LBRACK typ RBRACK (TList typ, (LBRACKleft, RBRACKright)) |
128 | | typ ARROW typ (TArrow (typ1, typ2), (typleft, typright)) |
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129 | | LBRACK ctxt RBRACK recd DARROW recd (TAction (ctxt, recd1, recd2), (LBRACKleft, recd2right)) |
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130 | | LBRACK ctxt RBRACK recd (TAction (ctxt, recd, StringMap.empty), |
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131 | (LBRACKleft, recdright)) |
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132 | | LBRACK ctxt RBRACK (TAction (ctxt, StringMap.empty, StringMap.empty), |
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133 | (LBRACKleft, ctxtright)) |
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134 | | LPAREN typ RPAREN (typ) |
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135 | | ctxt DARROW ctxt (TNested (ctxt1, ctxt2), (ctxt1left, ctxt2right)) |
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136 | |
137 | recd : LBRACE RBRACE (StringMap.empty) |
138 | | LBRACE recdNe RBRACE (recdNe) |
139 | |
140 | recdNe : CSYMBOL COLON typ (StringMap.insert (StringMap.empty, CSYMBOL, typ)) |
141 | | CSYMBOL COLON typ COMMA recdNe (StringMap.insert (recdNe, CSYMBOL, typ)) |
142 | |
143 | ctxt : ROOT (CRoot, (ROOTleft, ROOTright)) |
144 | | CSYMBOL (CConst CSYMBOL, (CSYMBOLleft, CSYMBOLright)) |
145 | | CARET ctxt (CPrefix ctxt, (CARETleft, ctxtright)) |
146 | | BANG ctxt (CNot ctxt, (BANGleft, ctxtright)) |
147 | | ctxt AND ctxt (CAnd (ctxt1, ctxt2), (ctxt1left, ctxt2right)) |
148 | | LPAREN ctxt RPAREN (ctxt) |