| 1 | /* HeuristicLab
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| 2 | * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 3 | *
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| 4 | * This file is part of HeuristicLab.
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| 5 | *
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| 6 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 7 | * it under the terms of the GNU General Public License as published by
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| 8 | * the Free Software Foundation, either version 3 of the License, or
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| 9 | * (at your option) any later version.
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| 10 | *
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| 11 | * HeuristicLab is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 18 | */
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| 19 |
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| 20 | $namespace=SyntaxAnalyzer
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| 21 |
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| 22 | COMPILER GPDefSyntaxAnalyzer
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| 23 |
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| 24 | CHARACTERS
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| 25 | letter = 'A'..'Z' + 'a'..'z'.
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| 26 | digit = '0'..'9'.
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| 27 |
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| 28 | TOKENS
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| 29 | ident = letter {letter | digit} .
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| 30 |
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| 31 | COMMENTS FROM "/*" TO "*/" NESTED
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| 32 | COMMENTS FROM "//" TO "\r"
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| 33 |
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| 34 | IGNORE '\t' + '\r' + '\n'
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| 35 |
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| 36 | // grammar production rules in EBNF syntax
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| 37 | PRODUCTIONS
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| 38 | GPDefSyntaxAnalyzer =
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| 39 | "PROBLEM" ident
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| 40 | ["CODE" "<<" {ANY} ">>" ]
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| 41 | ["INIT" "<<" {ANY} ">>" ]
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| 42 | "NONTERMINALS" { NonterminalDecl }
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| 43 | "TERMINALS" { TerminalDecl }
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| 44 | "RULES" { RuleDef }
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| 45 | ("MAXIMIZE" | "MINIMIZE") "<<" {ANY} ">>"
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| 46 | "END" ident '.'.
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| 47 |
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| 48 |
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| 49 | SemDecl = "LOCAL" "<<" {ANY} ">>"
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| 50 | .
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| 51 |
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| 52 | SemAction = "SEM" "<<" {ANY} ">>"
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| 53 | .
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| 54 |
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| 55 | NonterminalDecl = ident [ "<<" {ANY} ">>" ] '.'
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| 56 | .
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| 57 |
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| 58 | TerminalDecl = ident [ "<<" {ANY} ">>" ]
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| 59 | [ "CONSTRAINTS" ConstraintDef ]
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| 60 | '.'
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| 61 | .
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| 62 |
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| 63 | ConstraintDef = { ConstraintRule }.
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| 64 | ConstraintRule = ident "IN" SetDefinition .
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| 65 | SetDefinition =
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| 66 | "SET" "<<" {ANY} ">>"
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| 67 | | "RANGE" "<<" {ANY} ">>" ".." "<<" {ANY} ">>"
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| 68 | .
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| 69 |
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| 70 | RuleDef = ident [ "<<" {ANY} ">>" ] '=' [SemDecl] SynExpr '.'
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| 71 | .
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| 72 |
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| 73 | SynExpr = SynTerm { '|' SynTerm }
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| 74 | .
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| 75 |
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| 76 | SynTerm = SynFact { SynFact }
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| 77 | .
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| 78 |
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| 79 | SynFact =
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| 80 | ident [ "<<" {ANY} ">>" ]
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| 81 | | "EPS"
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| 82 | | '(' SynExpr ')'
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| 83 | | '[' SynExpr ']'
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| 84 | | '{' SynExpr '}'
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| 85 | | SemAction
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| 86 | .
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| 87 |
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| 88 | END GPDefSyntaxAnalyzer. |
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