public BackOGrammar_old() : base(false)
{
var lineComment = new CommentTerminal("line_comment", "--", "\n", "\r\n");
NonGrammarTerminals.Add(lineComment);
var number = new NumberLiteral("number");
var string_literal = new StringLiteral("string", "'", StringOptions.AllowsDoubledQuote);
var Id_simple = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple"); //covers normal identifiers (abc) and quoted id's ([abc d], "abc d")
var comma = ToTerm(",");
var dot = ToTerm(".");
var CREATE = ToTerm("CREATE");
var NULL = ToTerm("NULL");
var NOT = ToTerm("NOT");
//var ADD = ToTerm("ADD");
//var COLUMN = ToTerm("COLUMN");
var UPDATE = ToTerm("UPDATE");
var SET = ToTerm("SET");
var DELETE = ToTerm("DELETE");
var SELECT = ToTerm("SELECT");
var FROM = ToTerm("FROM");
var COUNT = ToTerm("COUNT");
var JOIN = ToTerm("JOIN");
//var BY = ToTerm("BY");
}
public ExpressionEvaluatorGrammar()
: base(false)
{ //false means case insensitive
//Non-Terminal Node
var program = new NonTerminal("program", typeof(ProgramNode));
var expression = new NonTerminal("expression", typeof(ExpressionNode));
var binaryOperator = new NonTerminal("binaryOperator", typeof(BinaryOperatorNode));
//Identifier for Number and Variable
var number = TerminalFactory.CreateCSharpNumber("number");
number.AstConfig.NodeType = typeof(MyNumber);
var Id = new NonTerminal("Id");
var Id_simple = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple");
Id.AstConfig.NodeType = typeof(MyVariable);
var stringLiteral = new StringLiteral("string", "\'", StringOptions.None);
Id.Rule = MakePlusRule(Id, Id_simple);
this.Root = program;
//Expression
program.Rule = expression;
expression.Rule = number | Id | stringLiteral
| expression + binaryOperator + expression
| "(" + expression + ")";
binaryOperator.Rule = ToTerm("+") | "-" | "*" | "/" | "%" //arithmetic
| "&" | "|" | "^" //bit
| "=" | ">" | "<" | ">=" | "<=" | "<>" | "!=" | "!<" | "!>" // comparator
| "AND" | "OR" | "CONTAINS" | ToTerm("NOT") + "CONTAINS" | ToTerm("NOT"); //others
//Operators precedence
RegisterOperators(10, "*", "/", "%");
RegisterOperators(9, "+", "-");
RegisterOperators(8, "=", ">", "<", ">=", "<=", "<>", "!=", "!<", "!>");
RegisterOperators(7, "^", "&", "|");
RegisterOperators(6, "NOT");
RegisterOperators(5, "AND");
RegisterOperators(4, "OR", "CONTAINS");
this.LanguageFlags = LanguageFlags.CreateAst;
this.MarkPunctuation("(", ")");
}
public SqlGrammar() : base(false)
{
var comment = new CommentTerminal("comment", "/*", "*/");
var lineComment = new CommentTerminal("line_comment", "--", "\n", "\r\n");
NonGrammarTerminals.Add(comment);
NonGrammarTerminals.Add(lineComment);
var number = new NumberLiteral("number");
var string_literal = new StringLiteral("string", "'", StringOptions.AllowsDoubledQuote);
var Id_simple = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple"); //covers normal identifiers (abc) and quoted id's ([abc d], "abc d")
var comma = ToTerm(",");
var dot = ToTerm(".");
var CREATE = ToTerm("CREATE");
var NULL = ToTerm("NULL");
var NOT = ToTerm("NOT");
var ON = ToTerm("ON");
var SELECT = ToTerm("SELECT");
var FROM = ToTerm("FROM");
var AS = ToTerm("AS");
var COUNT = ToTerm("COUNT");
var JOIN = ToTerm("JOIN");
var BY = ToTerm("BY");
var TRUE = ToTerm("TRUE");
var FALSE = ToTerm("FALSE");
//Non-terminals
var Id = new NonTerminal("Id");
var statement = new NonTerminal("stmt");
var selectStatement = new NonTerminal("selectStatement");
var idlist = new NonTerminal("idlist");
var aliaslist = new NonTerminal("aliaslist");
var aliasItem = new NonTerminal("aliasItem");
var orderList = new NonTerminal("orderList");
var orderMember = new NonTerminal("orderMember");
var orderDirOptional = new NonTerminal("orderDirOpt");
var whereClauseOptional = new NonTerminal("whereClauseOpt");
var expression = new NonTerminal("expression");
var expressionList = new NonTerminal("exprList");
var optionalSelectRestriction = new NonTerminal("optionalSelectRestriction");
var selectorList = new NonTerminal("selList");
var fromClauseOpt = new NonTerminal("fromClauseOpt");
var groupClauseOpt = new NonTerminal("groupClauseOpt");
var havingClauseOpt = new NonTerminal("havingClauseOpt");
var orderClauseOpt = new NonTerminal("orderClauseOpt");
var limitClauseOpt = new NonTerminal("limitClauseOpt");
var offsetClauseOpt = new NonTerminal("offsetClauseOpt");
var columnItemList = new NonTerminal("columnItemList");
var columnItem = new NonTerminal("columnItem");
var columnSource = new NonTerminal("columnSource");
var asOpt = new NonTerminal("asOpt");
var aliasOpt = new NonTerminal("aliasOpt");
var tuple = new NonTerminal("tuple");
var joinChainOpt = new NonTerminal("joinChainOpt");
var joinKindOpt = new NonTerminal("joinKindOpt");
var term = new NonTerminal("term");
var unExpr = new NonTerminal("unExpr");
var unOp = new NonTerminal("unOp");
var binExpr = new NonTerminal("binExpr");
var binOp = new NonTerminal("binOp");
var betweenExpr = new NonTerminal("betweenExpr");
var inExpr = new NonTerminal("inExpr");
var parSelectStatement = new NonTerminal("parSelectStmt");
var notOpt = new NonTerminal("notOpt");
var funCall = new NonTerminal("funCall");
var parameter = new NonTerminal("parameter");
var statementLine = new NonTerminal("stmtLine");
var optionalSemicolon = new NonTerminal("semiOpt");
var statementList = new NonTerminal("stmtList");
var functionArguments = new NonTerminal("funArgs");
var inStatement = new NonTerminal("inStmt");
var boolean = new NonTerminal("boolean");
//BNF Rules
this.Root = statementList;
statementLine.Rule = statement + optionalSemicolon;
optionalSemicolon.Rule = Empty | ";";
statementList.Rule = MakePlusRule(statementList, statementLine);
statement.Rule = selectStatement;
Id.Rule = MakePlusRule(Id, dot, Id_simple);
aliasOpt.Rule = Empty | asOpt + Id;
asOpt.Rule = Empty | AS;
idlist.Rule = MakePlusRule(idlist, comma, columnSource);
aliaslist.Rule = MakePlusRule(aliaslist, comma, aliasItem);
aliasItem.Rule = Id + aliasOpt;
//Create Index
orderList.Rule = MakePlusRule(orderList, comma, orderMember);
orderMember.Rule = Id + orderDirOptional;
orderDirOptional.Rule = Empty | "ASC" | "DESC";
//Select stmt
selectStatement.Rule = SELECT + optionalSelectRestriction + selectorList + fromClauseOpt + whereClauseOptional +
groupClauseOpt + havingClauseOpt + orderClauseOpt + limitClauseOpt + offsetClauseOpt;
optionalSelectRestriction.Rule = Empty | "ALL" | "DISTINCT";
selectorList.Rule = columnItemList | "*";
columnItemList.Rule = MakePlusRule(columnItemList, comma, columnItem);
columnItem.Rule = columnSource + aliasOpt;
columnSource.Rule = funCall | Id;
fromClauseOpt.Rule = Empty | FROM + aliaslist + joinChainOpt;
joinChainOpt.Rule = Empty | joinKindOpt + JOIN + aliaslist + ON + Id + "=" + Id;
joinKindOpt.Rule = Empty | "INNER" | "LEFT" | "RIGHT";
whereClauseOptional.Rule = Empty | "WHERE" + expression;
groupClauseOpt.Rule = Empty | "GROUP" + BY + idlist;
havingClauseOpt.Rule = Empty | "HAVING" + expression;
orderClauseOpt.Rule = Empty | "ORDER" + BY + orderList;
limitClauseOpt.Rule = Empty | "LIMIT" + expression;
offsetClauseOpt.Rule = Empty | "OFFSET" + expression;
//Expression
expressionList.Rule = MakePlusRule(expressionList, comma, expression);
expression.Rule = term | unExpr | binExpr | betweenExpr | parameter;
term.Rule = Id | boolean | string_literal | number | funCall | tuple | parSelectStatement | inStatement;
boolean.Rule = TRUE | FALSE;
tuple.Rule = "(" + expressionList + ")";
parSelectStatement.Rule = "(" + selectStatement + ")";
unExpr.Rule = unOp + term;
unOp.Rule = NOT | "+" | "-" | "~";
binExpr.Rule = expression + binOp + expression;
binOp.Rule = ToTerm("+") | "-" | "*" | "/" | "%" //arithmetic
| "&" | "|" | "^" //bit
| "=" | ">" | "<" | ">=" | "<=" | "<>" | "!=" | "!<" | "!>"
| "AND" | "OR" | "LIKE" | NOT + "LIKE" | "IN" | NOT + "IN";
betweenExpr.Rule = expression + notOpt + "BETWEEN" + expression + "AND" + expression;
notOpt.Rule = Empty | NOT;
//funCall covers some psedo-operators and special forms like ANY(...), SOME(...), ALL(...), EXISTS(...), IN(...)
funCall.Rule = Id + "(" + functionArguments + ")";
functionArguments.Rule = selectStatement | expressionList | "*";
inStatement.Rule = expression + "IN" + "(" + expressionList + ")";
parameter.Rule = "@" + Id | "@" + Id + ":" + term;
//Operators
RegisterOperators(10, "*", "/", "%");
RegisterOperators(9, "+", "-");
RegisterOperators(8, "=", ">", "<", ">=", "<=", "<>", "!=", "!<", "!>", "LIKE", "IN");
RegisterOperators(7, "^", "&", "|");
RegisterOperators(6, NOT);
RegisterOperators(5, "AND");
RegisterOperators(4, "OR");
MarkPunctuation(",", "(", ")");
MarkPunctuation(asOpt, optionalSemicolon);
//Note: we cannot declare binOp as transient because it includes operators "NOT LIKE", "NOT IN" consisting of two tokens.
// Transient non-terminals cannot have more than one non-punctuation child nodes.
// Instead, we set flag InheritPrecedence on binOp , so that it inherits precedence value from it's children, and this precedence is used
// in conflict resolution when binOp node is sitting on the stack
base.MarkTransient(statement, term, asOpt, aliasOpt, statementLine, expression, unOp, tuple);
binOp.SetFlag(TermFlags.InheritPrecedence);
}
public SQLGrammar()
: base(false)
{ //SQL is case insensitive
//Terminals
var comment = new CommentTerminal("comment", "/*", "*/");
var lineComment = new CommentTerminal("line_comment", "--", "\n", "\r\n");
NonGrammarTerminals.Add(comment);
NonGrammarTerminals.Add(lineComment);
var number = new NumberLiteral("number");
var string_literal = new StringLiteral("string", "'", StringOptions.AllowsDoubledQuote);
var Id_simple = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple"); //covers normal identifiers (abc) and quoted id's ([abc d], "abc d")
var comma = ToTerm(",");
var dot = ToTerm(".");
var CREATE = ToTerm("CREATE");
var NULL = ToTerm("NULL");
var NOT = ToTerm("NOT");
var UNIQUE = ToTerm("UNIQUE");
var WITH = ToTerm("WITH");
var TABLE = ToTerm("TABLE");
var ALTER = ToTerm("ALTER");
var ADD = ToTerm("ADD");
var COLUMN = ToTerm("COLUMN");
var DROP = ToTerm("DROP");
var CONSTRAINT = ToTerm("CONSTRAINT");
var INDEX = ToTerm("INDEX");
var ON = ToTerm("ON");
var KEY = ToTerm("KEY");
var PRIMARY = ToTerm("PRIMARY");
var INSERT = ToTerm("INSERT");
var INTO = ToTerm("INTO");
var UPDATE = ToTerm("UPDATE");
var SET = ToTerm("SET");
var VALUES = ToTerm("VALUES");
var DELETE = ToTerm("DELETE");
var SELECT = ToTerm("SELECT");
var FROM = ToTerm("FROM");
var AS = ToTerm("AS");
var COUNT = ToTerm("COUNT");
var JOIN = ToTerm("JOIN");
var BY = ToTerm("BY");
//Non-terminals
var Id = new NonTerminal("Id");
var stmt = new NonTerminal("stmt");
var createTableStmt = new NonTerminal("createTableStmt");
var createIndexStmt = new NonTerminal("createIndexStmt");
var alterStmt = new NonTerminal("alterStmt");
var dropTableStmt = new NonTerminal("dropTableStmt");
var dropIndexStmt = new NonTerminal("dropIndexStmt");
var selectStmt = new NonTerminal("selectStmt");
var insertStmt = new NonTerminal("insertStmt");
var updateStmt = new NonTerminal("updateStmt");
var deleteStmt = new NonTerminal("deleteStmt");
var fieldDef = new NonTerminal("fieldDef");
var fieldDefList = new NonTerminal("fieldDefList");
var nullSpecOpt = new NonTerminal("nullSpecOpt");
var typeName = new NonTerminal("typeName");
var typeSpec = new NonTerminal("typeSpec");
var typeParamsOpt = new NonTerminal("typeParams");
var constraintDef = new NonTerminal("constraintDef");
var constraintListOpt = new NonTerminal("constraintListOpt");
var constraintTypeOpt = new NonTerminal("constraintTypeOpt");
var idlist = new NonTerminal("idlist");
var idlistPar = new NonTerminal("idlistPar");
var uniqueOpt = new NonTerminal("uniqueOpt");
var orderList = new NonTerminal("orderList");
var orderMember = new NonTerminal("orderMember");
var orderDirOpt = new NonTerminal("orderDirOpt");
var withClauseOpt = new NonTerminal("withClauseOpt");
var alterCmd = new NonTerminal("alterCmd");
var insertData = new NonTerminal("insertData");
var intoOpt = new NonTerminal("intoOpt");
var assignList = new NonTerminal("assignList");
var whereClauseOpt = new NonTerminal("whereClauseOpt");
var assignment = new NonTerminal("assignment");
var expression = new NonTerminal("expression");
var exprList = new NonTerminal("exprList");
var selRestrOpt = new NonTerminal("selRestrOpt");
var selList = new NonTerminal("selList");
var intoClauseOpt = new NonTerminal("intoClauseOpt");
var fromClauseOpt = new NonTerminal("fromClauseOpt");
var groupClauseOpt = new NonTerminal("groupClauseOpt");
var havingClauseOpt = new NonTerminal("havingClauseOpt");
var orderClauseOpt = new NonTerminal("orderClauseOpt");
var columnItemList = new NonTerminal("columnItemList");
var columnItem = new NonTerminal("columnItem");
var columnSource = new NonTerminal("columnSource");
var asOpt = new NonTerminal("asOpt");
var aliasOpt = new NonTerminal("aliasOpt");
var aggregate = new NonTerminal("aggregate");
var aggregateArg = new NonTerminal("aggregateArg");
var aggregateName = new NonTerminal("aggregateName");
var tuple = new NonTerminal("tuple");
var joinChainOpt = new NonTerminal("joinChainOpt");
var joinKindOpt = new NonTerminal("joinKindOpt");
var term = new NonTerminal("term");
var unExpr = new NonTerminal("unExpr");
var unOp = new NonTerminal("unOp");
var binExpr = new NonTerminal("binExpr");
var binOp = new NonTerminal("binOp");
var betweenExpr = new NonTerminal("betweenExpr");
var inExpr = new NonTerminal("inExpr");
var parSelectStmt = new NonTerminal("parSelectStmt");
var notOpt = new NonTerminal("notOpt");
var funCall = new NonTerminal("funCall");
var stmtLine = new NonTerminal("stmtLine");
var semiOpt = new NonTerminal("semiOpt");
var stmtList = new NonTerminal("stmtList");
var funArgs = new NonTerminal("funArgs");
var inStmt = new NonTerminal("inStmt");
//BNF Rules
this.Root = stmtList;
stmtLine.Rule = stmt + semiOpt;
semiOpt.Rule = Empty | ";";
stmtList.Rule = MakePlusRule(stmtList, stmtLine);
//ID
Id.Rule = MakePlusRule(Id, dot, Id_simple);
stmt.Rule = createTableStmt | createIndexStmt | alterStmt
| dropTableStmt | dropIndexStmt
| selectStmt | insertStmt | updateStmt | deleteStmt
| "GO";
//Create table
createTableStmt.Rule = CREATE + TABLE + Id + "(" + fieldDefList + ")" + constraintListOpt;
fieldDefList.Rule = MakePlusRule(fieldDefList, comma, fieldDef);
fieldDef.Rule = Id + typeName + typeParamsOpt + nullSpecOpt;
nullSpecOpt.Rule = NULL | NOT + NULL | Empty;
typeName.Rule = ToTerm("BIT") | "DATE" | "TIME" | "TIMESTAMP" | "DECIMAL" | "REAL" | "FLOAT" | "SMALLINT" | "INTEGER"
| "INTERVAL" | "CHARACTER"
// MS SQL types:
| "DATETIME" | "INT" | "DOUBLE" | "CHAR" | "NCHAR" | "VARCHAR" | "NVARCHAR"
| "IMAGE" | "TEXT" | "NTEXT";
typeParamsOpt.Rule = "(" + number + ")" | "(" + number + comma + number + ")" | Empty;
constraintDef.Rule = CONSTRAINT + Id + constraintTypeOpt;
constraintListOpt.Rule = MakeStarRule(constraintListOpt, constraintDef);
constraintTypeOpt.Rule = PRIMARY + KEY + idlistPar | UNIQUE + idlistPar | NOT + NULL + idlistPar
| "Foreign" + KEY + idlistPar + "References" + Id + idlistPar;
idlistPar.Rule = "(" + idlist + ")";
idlist.Rule = MakePlusRule(idlist, comma, Id);
//Create Index
createIndexStmt.Rule = CREATE + uniqueOpt + INDEX + Id + ON + Id + orderList + withClauseOpt;
uniqueOpt.Rule = Empty | UNIQUE;
orderList.Rule = MakePlusRule(orderList, comma, orderMember);
orderMember.Rule = Id + orderDirOpt;
orderDirOpt.Rule = Empty | "ASC" | "DESC";
withClauseOpt.Rule = Empty | WITH + PRIMARY | WITH + "Disallow" + NULL | WITH + "Ignore" + NULL;
//Alter
alterStmt.Rule = ALTER + TABLE + Id + alterCmd;
alterCmd.Rule = ADD + COLUMN + fieldDefList + constraintListOpt
| ADD + constraintDef
| DROP + COLUMN + Id
| DROP + CONSTRAINT + Id;
//Drop stmts
dropTableStmt.Rule = DROP + TABLE + Id;
dropIndexStmt.Rule = DROP + INDEX + Id + ON + Id;
//Insert stmt
insertStmt.Rule = INSERT + intoOpt + Id + idlistPar + insertData;
insertData.Rule = selectStmt | VALUES + "(" + exprList + ")";
intoOpt.Rule = Empty | INTO; //Into is optional in MSSQL
//Update stmt
updateStmt.Rule = UPDATE + Id + SET + assignList + whereClauseOpt;
assignList.Rule = MakePlusRule(assignList, comma, assignment);
assignment.Rule = Id + "=" + expression;
//Delete stmt
deleteStmt.Rule = DELETE + FROM + Id + whereClauseOpt;
//Select stmt
selectStmt.Rule = SELECT + selRestrOpt + selList + intoClauseOpt + fromClauseOpt + whereClauseOpt +
groupClauseOpt + havingClauseOpt + orderClauseOpt;
selRestrOpt.Rule = Empty | "ALL" | "DISTINCT";
selList.Rule = columnItemList | "*";
columnItemList.Rule = MakePlusRule(columnItemList, comma, columnItem);
columnItem.Rule = columnSource + aliasOpt;
aliasOpt.Rule = Empty | asOpt + Id;
asOpt.Rule = Empty | AS;
columnSource.Rule = aggregate | Id;
aggregate.Rule = aggregateName + "(" + aggregateArg + ")";
aggregateArg.Rule = expression | "*";
aggregateName.Rule = COUNT | "Avg" | "Min" | "Max" | "StDev" | "StDevP" | "Sum" | "Var" | "VarP";
intoClauseOpt.Rule = Empty | INTO + Id;
fromClauseOpt.Rule = Empty | FROM + idlist + joinChainOpt;
joinChainOpt.Rule = Empty | joinKindOpt + JOIN + idlist + ON + Id + "=" + Id;
joinKindOpt.Rule = Empty | "INNER" | "LEFT" | "RIGHT";
whereClauseOpt.Rule = Empty | "WHERE" + expression;
groupClauseOpt.Rule = Empty | "GROUP" + BY + idlist;
havingClauseOpt.Rule = Empty | "HAVING" + expression;
orderClauseOpt.Rule = Empty | "ORDER" + BY + orderList;
//Expression
exprList.Rule = MakePlusRule(exprList, comma, expression);
expression.Rule = term | unExpr | binExpr; // | betweenExpr; //-- BETWEEN doesn't work - yet; brings a few parsing conflicts
term.Rule = Id | string_literal | number | funCall | tuple | parSelectStmt; // | inStmt;
tuple.Rule = "(" + exprList + ")";
parSelectStmt.Rule = "(" + selectStmt + ")";
unExpr.Rule = unOp + term;
unOp.Rule = NOT | "+" | "-" | "~";
binExpr.Rule = expression + binOp + expression;
binOp.Rule = ToTerm("+") | "-" | "*" | "/" | "%" //arithmetic
| "&" | "|" | "^" //bit
| "=" | ">" | "<" | ">=" | "<=" | "<>" | "!=" | "!<" | "!>"
| "AND" | "OR" | "LIKE" | NOT + "LIKE" | "IN" | NOT + "IN";
betweenExpr.Rule = expression + notOpt + "BETWEEN" + expression + "AND" + expression;
notOpt.Rule = Empty | NOT;
//funCall covers some psedo-operators and special forms like ANY(...), SOME(...), ALL(...), EXISTS(...), IN(...)
funCall.Rule = Id + "(" + funArgs + ")";
funArgs.Rule = selectStmt | exprList;
inStmt.Rule = expression + "IN" + "(" + exprList + ")";
//Operators
RegisterOperators(10, "*", "/", "%");
RegisterOperators(9, "+", "-");
RegisterOperators(8, "=", ">", "<", ">=", "<=", "<>", "!=", "!<", "!>", "LIKE", "IN");
RegisterOperators(7, "^", "&", "|");
RegisterOperators(6, NOT);
RegisterOperators(5, "AND");
RegisterOperators(4, "OR");
MarkPunctuation(",", "(", ")");
MarkPunctuation(asOpt, semiOpt);
//Note: we cannot declare binOp as transient because it includes operators "NOT LIKE", "NOT IN" consisting of two tokens.
// Transient non-terminals cannot have more than one non-punctuation child nodes.
// Instead, we set flag InheritPrecedence on binOp , so that it inherits precedence value from it's children, and this precedence is used
// in conflict resolution when binOp node is sitting on the stack
base.MarkTransient(stmt, term, asOpt, aliasOpt, stmtLine, expression, unOp, tuple);
binOp.SetFlag(TermFlags.InheritPrecedence);
} //constructor
public SqlGrammar()
: base(false)
{ //SQL is case insensitive
//Terminals
var comment = new CommentTerminal("comment", "/*", "*/");
var lineComment = new CommentTerminal("line_comment", "--", "\n", "\r\n");
NonGrammarTerminals.Add(comment);
NonGrammarTerminals.Add(lineComment);
var number = TerminalFactory.CreateCSharpNumber("number");
number.Options = NumberOptions.AllowSign;
var string_literal = new StringLiteral("string", "'", StringOptions.AllowsDoubledQuote);
string_literal.AddStartEnd("N'", "'", StringOptions.AllowsDoubledQuote | StringOptions.AllowsLineBreak);
var Id_simple = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple"); //covers normal identifiers (abc) and quoted id's ([abc d], "abc d")
Id_simple.AddPrefix("@@", IdOptions.NameIncludesPrefix);
Id_simple.AddPrefix("@", IdOptions.NameIncludesPrefix);
var comma = ToTerm(",");
var dot = ToTerm(".");
var equals = ToTerm("=");
var plus = ToTerm("+");
var CREATE = ToTerm("CREATE");
var NULL = ToTerm("NULL");
var NOT = ToTerm("NOT");
var UNIQUE = ToTerm("UNIQUE");
var WITH = ToTerm("WITH");
var TABLE = ToTerm("TABLE");
var VIEW = ToTerm("VIEW");
var DATABASE = ToTerm("DATABASE");
var ALTER = ToTerm("ALTER");
var ADD = ToTerm("ADD");
var COLUMN = ToTerm("COLUMN");
var DROP = ToTerm("DROP");
var CONSTRAINT = ToTerm("CONSTRAINT");
var INDEX = ToTerm("INDEX");
var CLUSTERED = ToTerm("CLUSTERED");
var NONCLUSTERED = ToTerm("NONCLUSTERED");
var ON = ToTerm("ON");
var KEY = ToTerm("KEY");
var PRIMARY = ToTerm("PRIMARY");
var INSERT = ToTerm("INSERT");
var INTO = ToTerm("INTO");
var UPDATE = ToTerm("UPDATE");
var SET = ToTerm("SET");
var VALUES = ToTerm("VALUES");
var DELETE = ToTerm("DELETE");
var SELECT = ToTerm("SELECT");
var FROM = ToTerm("FROM");
var AS = ToTerm("AS");
var COUNT = ToTerm("COUNT");
var JOIN = ToTerm("JOIN");
var BY = ToTerm("BY");
var DEFAULT = ToTerm("DEFAULT");
var CHECK = ToTerm("CHECK");
var REPLICATION = ToTerm("REPLICATION");
var FOR = ToTerm("FOR");
var COLLATE = ToTerm("COLLATE");
var IDENTITY = ToTerm("IDENTITY");
var TEXTIMAGE_ON = ToTerm("TEXTIMAGE_ON");
var IF = ToTerm("IF");
var ELSE = ToTerm("ELSE");
var BEGIN = ToTerm("BEGIN");
var END = ToTerm("END");
var GO = ToTerm("GO");
var PRINT = ToTerm("PRINT");
var IS = ToTerm("IS");
var USE = ToTerm("USE");
var EXEC = ToTerm("EXEC");
var NOCHECK = ToTerm("NOCHECK");
var CASCADE = ToTerm("CASCADE");
var TYPE = ToTerm("TYPE");
var PROCEDURE = ToTerm("PROCEDURE");
var DECLARE = ToTerm("DECLARE");
var TRY = ToTerm("TRY");
var CATCH = ToTerm("CATCH");
var CAST = ToTerm("CAST");
var AND = ToTerm("AND");
var OR = ToTerm("OR");
var GRANT = ToTerm("GRANT");
var UNION = ToTerm("UNION");
var ALL = ToTerm("ALL");
var CASE = ToTerm("CASE");
var WHEN = ToTerm("WHEN");
var THEN = ToTerm("THEN");
var RETURN = ToTerm("RETURN");
var COMMIT = ToTerm("COMMIT");
var TRAN = ToTerm("TRAN");
var TRANSACTION = ToTerm("TRANSACTION");
var TOP = ToTerm("TOP");
var MERGE = ToTerm("MERGE");
var USING = ToTerm("USING");
var MATCHED = ToTerm("MATCHED");
var TARGET = ToTerm("TARGET");
var TRUNCATE = ToTerm("TRUNCATE");
var ROLLBACK = ToTerm("ROLLBACK");
var STATISTICS = ToTerm("STATISTICS");
var ROLE = ToTerm("ROLE");
var WHILE = ToTerm("WHILE");
var BREAK = ToTerm("BREAK");
var REBUILD = ToTerm("REBUILD");
var CHECKPOINT = ToTerm("CHECKPOINT");
var HASH = ToTerm("HASH");
var OUTPUT = ToTerm("OUTPUT");
//Non-terminals
var Id = new NonTerminal("Id");
var IdWithAliasOpt = new NonTerminal("IdWithAliasOpt");
var stmt = new NonTerminal("stmt");
var createTableStmt = new NonTerminal("createTableStmt");
var createIndexStmt = new NonTerminal("createIndexStmt");
var createViewStmt = new NonTerminal("createViewStmt");
var createTypeStmt = new NonTerminal("createTypeStmt");
var createProcedureStmt = new NonTerminal("createProcedureStmt");
var variableDefLists = new NonTerminal("variableDefLists");
var variableDefList = new NonTerminal("variableDefList");
var variableDef = new NonTerminal("variableDef");
var outputOpt = new NonTerminal("outputOpt");
var primaryKeyOpt = new NonTerminal("primaryKeyOpt");
var alterStmt = new NonTerminal("alterStmt");
var dropTableStmt = new NonTerminal("dropTableStmt");
var dropIndexStmt = new NonTerminal("dropIndexStmt");
var dropViewStmt = new NonTerminal("dropViewStmt");
var dropProcedureStmt = new NonTerminal("dropProcedureStmt");
var selectStmt = new NonTerminal("selectStmt");
var insertStmt = new NonTerminal("insertStmt");
var updateStmt = new NonTerminal("updateStmt");
var deleteStmt = new NonTerminal("deleteStmt");
var ifStmt = new NonTerminal("ifStmt");
var elseStmt = new NonTerminal("elseStmt");
var fieldDef = new NonTerminal("fieldDef");
var fieldDefList = new NonTerminal("fieldDefList");
var nullSpecOpt = new NonTerminal("nullSpecOpt");
var typeName = new NonTerminal("typeName");
var constraintListOpt = new NonTerminal("constraintListOpt");
var constraintDef = new NonTerminal("constraintDef");
var indexContraintDef = new NonTerminal("indexContraintDef");
var constraintTypeOpt = new NonTerminal("constraintTypeOptOpt");
var defaultValueOpt = new NonTerminal("defaultValueOpt");
var idlist = new NonTerminal("idlist");
var idOrExpression = new NonTerminal("idOrExpression");
var idOrExpressionList = new NonTerminal("idOrExpressionList");
var idlistForSelect = new NonTerminal("idlistForSelect");
var idlistParOpt = new NonTerminal("idlistPar");
var orderList = new NonTerminal("orderList");
var orderMember = new NonTerminal("orderMember");
var orderDirOpt = new NonTerminal("orderDirOpt");
var defaultValueParams = new NonTerminal("defaultValueParams");
var indexTypeOpt = new NonTerminal("indexTypeOpt");
var indexTypeList = new NonTerminal("indexTypeList");
var withClauseOpt = new NonTerminal("withClauseOpt");
var alterCmdOpt = new NonTerminal("alterCmdOpt");
var insertData = new NonTerminal("insertData");
var intoOpt = new NonTerminal("intoOpt");
var assignList = new NonTerminal("assignList");
var whereClauseOpt = new NonTerminal("whereClauseOpt");
var andClauseOpt = new NonTerminal("andClauseOpt");
var betweenClauseOpt = new NonTerminal("betweenClauseOpt");
var assignment = new NonTerminal("assignment");
var expression = new NonTerminal("expression");
var exprList = new NonTerminal("exprList");
var selRestrOpt = new NonTerminal("selRestrOpt");
var selList = new NonTerminal("selList");
var intoClauseOpt = new NonTerminal("intoClauseOpt");
var fromClauseOpt = new NonTerminal("fromClauseOpt");
var groupClauseOpt = new NonTerminal("groupClauseOpt");
var havingClauseOpt = new NonTerminal("havingClauseOpt");
var orderClauseOpt = new NonTerminal("orderClauseOpt");
var columnItemList = new NonTerminal("columnItemList");
var columnItem = new NonTerminal("columnItem");
var columnSource = new NonTerminal("columnSource");
var asOpt = new NonTerminal("asOpt");
var aliasOpt = new NonTerminal("aliasOpt");
var aggregate = new NonTerminal("aggregate");
var aggregateArg = new NonTerminal("aggregateArg");
var aggregateName = new NonTerminal("aggregateName");
var tuple = new NonTerminal("tuple");
var joinChainOpt = new NonTerminal("joinChainOpt");
var joinKindOpt = new NonTerminal("joinKindOpt");
var term = new NonTerminal("term");
var unExpr = new NonTerminal("unExpr");
var unOp = new NonTerminal("unOp");
var binExpr = new NonTerminal("binExpr");
var binOp = new NonTerminal("binOp");
var betweenExpr = new NonTerminal("betweenExpr");
var notOpt = new NonTerminal("notOpt");
var funCall = new NonTerminal("funCall");
var stmtLine = new NonTerminal("stmtLine");
var semiOpt = new NonTerminal("semiOpt");
var stmtList = new NonTerminal("stmtList");
var funArgsOpt = new NonTerminal("funArgsOpt");
var inStmt = new NonTerminal("inStmt");
var settingList = new NonTerminal("settingList");
var settingListItem = new NonTerminal("settingListItem");
var onOpt = new NonTerminal("onOpt");
var textImageOnOpt = new NonTerminal("textImageOnOpt");
var defaultValueParamsList = new NonTerminal("defaultValueParamsList");
var typeNameParamsList = new NonTerminal("typeNameParamsList");
var notForReplOpt = new NonTerminal("notForReplOpt");
var collateOpt = new NonTerminal("collateOpt");
var columnDef = new NonTerminal("columnDef");
var identityOpt = new NonTerminal("identityOpt");
var referencesOpt = new NonTerminal("referencesOpt");
var fieldDefLists = new NonTerminal("fieldDefLists");
var onListOpt = new NonTerminal("onListOpt");
var printStmt = new NonTerminal("printStmt");
var beginEndStmt = new NonTerminal("beginEndStmt");
var beginTryCatchStmt = new NonTerminal("beginTryCatchStmt");
var beginEndStmtList = new NonTerminal("beginEndStmtList");
var isNullOpt = new NonTerminal("isNullOpt");
var setStmtOpt = new NonTerminal("setStmtOpt");
var useStmt = new NonTerminal("useStmt");
var forOpt = new NonTerminal("forOpt");
var execStmt = new NonTerminal("execStmt");
var cascadeOpt = new NonTerminal("cascadeOpt");
var cascadeListOpt = new NonTerminal("cascadeListOpt");
var alterProcedureStmt = new NonTerminal("alterProcedureStmt");
var declareStmt = new NonTerminal("declareStmt");
var concatStringItem = new NonTerminal("concatStringItem");
var concatStringList = new NonTerminal("concatStringList");
var castFunCall = new NonTerminal("castFunCall");
var funCallList = new NonTerminal("funCallList");
var funcallDelim = new NonTerminal("funcallDelim");
var declareList = new NonTerminal("declareList");
var declareListItem = new NonTerminal("declareListItem");
var grantStmt = new NonTerminal("grantStmt");
var joinChainOptList = new NonTerminal("joinChainOptList");
var leftParenOpt = new NonTerminal("leftParenOpt");
var rightParenOpt = new NonTerminal("rightParenOpt");
var unionAllOpt = new NonTerminal("unionAllOpt");
var selectCaseStmts = new NonTerminal("selectCaseStmts");
var selectCaseStmt = new NonTerminal("selectCaseStmt");
var caseWhenThenLists = new NonTerminal("caseWhenThenLists");
var caseWhenThenList = new NonTerminal("caseWhenThenList");
var caseWhenThenStmt = new NonTerminal("caseWhenThenStmt");
var unionAllListOpt = new NonTerminal("unionAllListOpt");
var returnStmt = new NonTerminal("returnStmt");
var beginTransStmt = new NonTerminal("beginTransStmt");
var rollbackTransStmt = new NonTerminal("rollbackTransStmt");
var topOpt = new NonTerminal("topOpt");
var mergeStmt = new NonTerminal("mergeStmt");
var mergeWhenMatched = new NonTerminal("mergeWhenMatched");
var mergeWhenNotMatched = new NonTerminal("mergeWhenNotMatched");
var truncateStmt = new NonTerminal("truncateStmt");
var commitTransStmt = new NonTerminal("commitTransStmt");
var noLockOpt = new NonTerminal("noLockOpt");
var declareTableStmt = new NonTerminal("declareTableStmt");
var joinStmtOpt = new NonTerminal("joinStmtOpt");
var forXmlStmtOpt = new NonTerminal("forXmlStmtOpt");
var forXmlFunCallList = new NonTerminal("forXmlFunCallList");
var funArgsList = new NonTerminal("funArgsList");
var updateStatisticsStmt = new NonTerminal("updateStatisticsStmt");
var createRoleStmt = new NonTerminal("createRoleStmt");
var whileStmt = new NonTerminal("whileStmt");
var alterIndexStmt = new NonTerminal("alterIndexStmt");
var ifCondition = new NonTerminal("ifCondition");
var ifConditionChain = new NonTerminal("ifConditionChain");
var hashOpt = new NonTerminal("hashOpt");
var IdAsType = new NonTerminal("IdAsType");
var selectWithUnion = new NonTerminal("selectWithUnion");
var withStmt = new NonTerminal("withStmt");
//BNF Rules
this.Root = stmtList;
stmtLine.Rule = stmt + semiOpt;
semiOpt.Rule = Empty | ";";
stmtList.Rule = MakePlusRule(stmtList, stmtLine);
setStmtOpt.Rule = Empty | SET + Id + Id | SET + Id + equals + (leftParenOpt + selectStmt + rightParenOpt | Id | funCall | concatStringList | expression);
useStmt.Rule = USE + Id;
execStmt.Rule = EXEC + (Empty | Id | Id + ".." + Id) + (leftParenOpt + funArgsList + rightParenOpt);
declareStmt.Rule = DECLARE + declareList;
declareTableStmt.Rule = DECLARE + Id + TABLE + "(" + fieldDefList + ")";
declareListItem.Rule = Id + typeName
| Id + typeName + equals + term;
declareList.Rule = MakePlusRule(declareList, comma, declareListItem);
castFunCall.Rule = CAST + "(" + funCall + asOpt + (Empty | typeName) + ")" + asOpt + (Empty | typeName);
grantStmt.Rule = GRANT + term + ON + TYPE + "::" + Id + "TO" + Id;
returnStmt.Rule = RETURN + term;
leftParenOpt.Rule = Empty | "(";
rightParenOpt.Rule = Empty | ")";
unionAllOpt.Rule = Empty | UNION + ALL + leftParenOpt + selectStmt + rightParenOpt;
unionAllListOpt.Rule = MakeStarRule(unionAllListOpt, unionAllOpt);
idOrExpression.Rule = Id | expression;
idOrExpressionList.Rule = MakeStarRule(idOrExpressionList, comma, idOrExpression);
whileStmt.Rule = WHILE + expression + beginEndStmt;
//ID
Id.Rule = MakePlusRule(Id, dot, Id_simple);
IdWithAliasOpt.Rule = Id | Id + Id | Id + AS + Id;
IdAsType.Rule = Id + AS + typeName;
concatStringItem.Rule = leftParenOpt + term + rightParenOpt;
concatStringList.Rule = MakePlusRule(concatStringList, plus, concatStringItem);
stmt.Rule = createProcedureStmt | createTableStmt | createIndexStmt | createViewStmt | createTypeStmt | createRoleStmt
| declareTableStmt | alterStmt | dropTableStmt | dropIndexStmt | dropViewStmt | dropProcedureStmt
| selectWithUnion | insertStmt | updateStmt | deleteStmt | whileStmt
| GO | ifStmt | elseStmt | beginEndStmt | printStmt | withStmt
| execStmt | setStmtOpt | useStmt | funCall | declareStmt | returnStmt
| grantStmt | mergeStmt | truncateStmt | updateStatisticsStmt
| beginTransStmt | commitTransStmt | rollbackTransStmt
| BREAK | CHECKPOINT
| ";";
onOpt.Rule = Empty | ON + Id;
textImageOnOpt.Rule = Empty | TEXTIMAGE_ON + Id;
forOpt.Rule = Empty | FOR + Id;
onListOpt.Rule = MakePlusRule(onListOpt, onOpt);
withStmt.Rule = WITH + Id + AS + leftParenOpt + selectStmt + rightParenOpt;
fieldDefLists.Rule = MakePlusRule(fieldDefLists, fieldDefList);
printStmt.Rule = PRINT + concatStringList;
beginEndStmtList.Rule = MakePlusRule(beginEndStmtList, stmt);
beginEndStmt.Rule = beginTryCatchStmt | BEGIN + beginEndStmtList + END;
beginTryCatchStmt.Rule = BEGIN + TRY + beginEndStmtList + END + TRY + BEGIN + CATCH + beginEndStmtList + END + CATCH;
beginTransStmt.Rule = BEGIN + (TRAN | TRANSACTION) + (Empty | Id);
commitTransStmt.Rule = COMMIT + (TRAN | TRANSACTION) + (Empty | Id);
rollbackTransStmt.Rule = ROLLBACK + (TRAN | TRANSACTION) + (Empty | Id);
truncateStmt.Rule = TRUNCATE + TABLE + Id;
isNullOpt.Rule = Empty | IS + NULL;
funcallDelim.Rule = AND | OR;
funCallList.Rule = MakePlusRule(funCallList, funcallDelim, funCall);
// If
ifStmt.Rule = IF + leftParenOpt + ifConditionChain + rightParenOpt;
ifCondition.Rule = (notOpt + funCall + isNullOpt | NOT + leftParenOpt + expression + rightParenOpt)
| (Empty | "EXISTS") + "(" + (Id_simple + IS + NULL | settingListItem | selectWithUnion) + ")"
| "EXISTS" + "(" + selectWithUnion + ")"
| (Id_simple + IS + (Empty | NOT) + NULL | settingListItem)
| expression;
ifConditionChain.Rule = MakePlusRule(ifConditionChain, AND | OR, ifCondition);
elseStmt.Rule = ELSE;
createRoleStmt.Rule = CREATE + ROLE + Id;
createViewStmt.Rule = CREATE + VIEW + Id + AS + leftParenOpt + selectWithUnion + rightParenOpt + unionAllListOpt;
createTypeStmt.Rule = CREATE + TYPE + Id + FROM + Id
| CREATE + TYPE + Id + AS + TABLE + "(" + fieldDefLists + ")";
//Create procedure
createProcedureStmt.Rule = CREATE + PROCEDURE + Id + "(" + variableDefLists + ")" + AS + BEGIN + stmtList + END;
variableDefLists.Rule = MakePlusRule(variableDefLists, variableDefList);
variableDefList.Rule = MakeListRule(variableDefList, comma, variableDef, TermListOptions.AllowTrailingDelimiter | TermListOptions.PlusList);
variableDef.Rule = Id + typeName + outputOpt;
outputOpt.Rule = Empty | OUTPUT;
//Create table
createTableStmt.Rule = CREATE + TABLE + Id + "(" + fieldDefLists + ")" + (onOpt | withClauseOpt) + textImageOnOpt;
fieldDefList.Rule = MakeListRule(fieldDefList, comma, fieldDef, TermListOptions.AllowTrailingDelimiter | TermListOptions.PlusList);
fieldDef.Rule = columnDef | constraintListOpt;
columnDef.Rule = Id + typeName + collateOpt + primaryKeyOpt + nullSpecOpt + referencesOpt + defaultValueOpt + withClauseOpt
| Id + typeName + collateOpt + primaryKeyOpt + nullSpecOpt + constraintListOpt + withClauseOpt
| Id + typeName + collateOpt + primaryKeyOpt + notForReplOpt + nullSpecOpt + defaultValueOpt + withClauseOpt
| Id + typeName + collateOpt + primaryKeyOpt + notForReplOpt + nullSpecOpt + constraintListOpt + withClauseOpt
| Id + typeName + equals + term
| primaryKeyOpt + indexTypeOpt + idlistParOpt + withClauseOpt
| term;
referencesOpt.Rule = Empty | "References" + Id + idlistParOpt;
notForReplOpt.Rule = Empty | (NOT + FOR + REPLICATION);
nullSpecOpt.Rule = Empty | (NOT + FOR + REPLICATION) | NULL | NOT + NULL | NOT + NULL + typeName | NULL + typeName;
collateOpt.Rule = Empty | COLLATE + Id_simple;
identityOpt.Rule = Empty | IDENTITY;
typeNameParamsList.Rule = MakePlusRule(typeNameParamsList, comma, term);
typeName.Rule = Id_simple | Id_simple + "(" + typeNameParamsList + ")" | Id_simple + "(max)";
constraintDef.Rule = CONSTRAINT + Id + constraintTypeOpt + onListOpt;
indexContraintDef.Rule = constraintTypeOpt + onListOpt;
constraintListOpt.Rule = MakeStarRule(constraintListOpt, constraintDef);
constraintTypeOpt.Rule = Empty | defaultValueOpt + withClauseOpt
| primaryKeyOpt + indexTypeList + idlistParOpt + withClauseOpt
| CHECK + "(" + expression + ")" + withClauseOpt
| NOT + NULL + idlistParOpt + withClauseOpt
| "Foreign" + KEY + idlistParOpt + referencesOpt + notForReplOpt + withClauseOpt
| "INCLUDE" + idlistParOpt + withClauseOpt + onOpt;
idlistParOpt.Rule = Empty | "(" + orderList + ")";
idlist.Rule = MakePlusRule(idlist, comma, Id);
idlistForSelect.Rule = MakePlusRule(idlist, comma, IdWithAliasOpt);
defaultValueParamsList.Rule = MakePlusRule(defaultValueParamsList, comma, term);
defaultValueOpt.Rule = Empty | (DEFAULT + defaultValueParams);
defaultValueParams.Rule = term | "(" + term + ")";
//Create Index
primaryKeyOpt.Rule = Empty | PRIMARY + KEY | typeName;
createIndexStmt.Rule = CREATE + indexTypeList + INDEX + Id + onOpt + "(" + orderList + ")" + constraintTypeOpt + whereClauseOpt + withClauseOpt + onOpt;
orderList.Rule = MakePlusRule(orderList, comma, orderMember);
orderMember.Rule = Id + orderDirOpt;
orderDirOpt.Rule = Empty | "ASC" | "DESC";
indexTypeOpt.Rule = Empty | UNIQUE | CLUSTERED | NONCLUSTERED;
indexTypeList.Rule = MakeStarRule(indexTypeList, indexTypeOpt);
settingList.Rule = MakePlusRule(settingList, comma, settingListItem);
settingListItem.Rule = Id + equals + term;
withClauseOpt.Rule = Empty | (WITH + PRIMARY | WITH + "Disallow" + NULL | WITH + "Ignore" + NULL | WITH + "(" + settingList + ")" + onOpt + textImageOnOpt);
cascadeOpt.Rule = Empty | (ON + (UPDATE | DELETE) + CASCADE);
cascadeListOpt.Rule = MakePlusRule(cascadeListOpt, cascadeOpt);
noLockOpt.Rule = (Empty | WITH + leftParenOpt + "NOLOCK" + rightParenOpt);
//Alter
alterStmt.Rule = ALTER + (TABLE | DATABASE) + Id + setStmtOpt + alterCmdOpt
| alterProcedureStmt
| alterIndexStmt;
alterCmdOpt.Rule = Empty | ADD + COLUMN + fieldDefList + constraintDef
| CHECK + CONSTRAINT + Id
| WITH + (CHECK | NOCHECK) + ADD + CONSTRAINT + Id + constraintTypeOpt + cascadeListOpt
| ADD + constraintDef + forOpt
| DROP + COLUMN + Id
| DROP + CONSTRAINT + Id;
alterProcedureStmt.Rule = ALTER + PROCEDURE + Id + leftParenOpt + fieldDefLists + rightParenOpt + asOpt + beginEndStmt;
alterIndexStmt.Rule = ALTER + INDEX + Id + ON + Id + REBUILD + WITH + "(" + settingList + ")";
//Drop stmts
dropTableStmt.Rule = DROP + TABLE + Id;
dropIndexStmt.Rule = DROP + INDEX + Id + ON + Id;
dropViewStmt.Rule = DROP + VIEW + Id;
dropProcedureStmt.Rule = DROP + PROCEDURE + Id;
//Insert stmt
insertStmt.Rule = INSERT + (Empty | intoOpt + Id) + (idlistParOpt + insertData | execStmt);
insertData.Rule = leftParenOpt + selectWithUnion + rightParenOpt | VALUES + "(" + exprList + ")";
intoOpt.Rule = Empty | INTO; //Into is optional in MSSQL
//Update stmt
updateStmt.Rule = UPDATE + topOpt + (Empty | Id) + SET + assignList + fromClauseOpt + joinStmtOpt + whereClauseOpt + andClauseOpt;
assignList.Rule = MakePlusRule(assignList, comma, assignment);
assignment.Rule = Id + "=" + expression;
updateStatisticsStmt.Rule = UPDATE + STATISTICS + Id;
//Delete stmt
deleteStmt.Rule = DELETE + (Empty | FROM) + Id + whereClauseOpt + andClauseOpt;
//Select stmt
selectCaseStmt.Rule = CASE + caseWhenThenLists + ELSE + expression + END + (Empty | asOpt + Id);
caseWhenThenLists.Rule = MakePlusRule(caseWhenThenLists, caseWhenThenList);
caseWhenThenList.Rule = WHEN + leftParenOpt + expression + rightParenOpt + THEN + term;
variableDef.Rule = Id + typeName + outputOpt;
selectStmt.Rule = SELECT + topOpt + selRestrOpt + selList + intoClauseOpt + fromClauseOpt + forXmlStmtOpt + joinChainOptList + whereClauseOpt + andClauseOpt +
betweenClauseOpt + groupClauseOpt + havingClauseOpt + orderClauseOpt;
selectWithUnion.Rule = MakePlusRule(selectWithUnion, UNION, selectStmt);
mergeStmt.Rule = MERGE + Id + AS + Id + USING + (Empty | Id) + leftParenOpt + (Empty | selectWithUnion) + rightParenOpt + AS + Id + ON + expression + mergeWhenMatched +
mergeWhenNotMatched + mergeWhenNotMatched;
mergeWhenMatched.Rule = WHEN + MATCHED + andClauseOpt + THEN + stmt;
mergeWhenNotMatched.Rule = Empty | WHEN + NOT + MATCHED + BY + Id + THEN + stmt;
forXmlStmtOpt.Rule = Empty | FOR + "XML" + forXmlFunCallList;
forXmlFunCallList.Rule = MakePlusRule(forXmlFunCallList, comma, funCall);
topOpt.Rule = Empty | TOP + leftParenOpt + (number | Id) + rightParenOpt;
selRestrOpt.Rule = Empty | "ALL" | "DISTINCT";
selList.Rule = columnItemList + semiOpt | "*";
columnItemList.Rule = MakePlusRule(columnItemList, comma, columnItem);
columnItem.Rule = columnSource;
aliasOpt.Rule = Empty | asOpt + Id;
asOpt.Rule = Empty | AS;
columnSource.Rule = Id + aliasOpt | Id + "=" + (selectCaseStmt | concatStringList | expression) | expression | expression + asOpt + (Empty | Id) | selectCaseStmt;
aggregate.Rule = aggregateName + "(" + aggregateArg + ")";
aggregateArg.Rule = expression | "*";
aggregateName.Rule = COUNT | "Avg" | "Min" | "Max" | "StDev" | "StDevP" | "Sum" | "Var" | "VarP";
intoClauseOpt.Rule = Empty | INTO + Id;
fromClauseOpt.Rule = Empty | FROM + leftParenOpt + (selectStmt | funCall | idlistForSelect) + rightParenOpt + (Empty | AS + Id) + noLockOpt;
joinStmtOpt.Rule = Empty | JOIN + Id + asOpt + Id + noLockOpt + ON + expression;
joinChainOpt.Rule = Empty | joinKindOpt + hashOpt + joinStmtOpt;
joinChainOptList.Rule = MakeStarRule(joinChainOptList, joinChainOpt);
joinKindOpt.Rule = Empty | "INNER" | "OUTER" | "LEFT" | "RIGHT";
hashOpt.Rule = Empty | HASH;
whereClauseOpt.Rule = Empty | "WHERE" + expression;
andClauseOpt.Rule = Empty | "AND" + expression;
betweenClauseOpt.Rule = Empty | "BETWEEN" + expression;
groupClauseOpt.Rule = Empty | "GROUP" + BY + idOrExpressionList;
havingClauseOpt.Rule = Empty | "HAVING" + expression;
orderClauseOpt.Rule = Empty | "ORDER" + BY + orderList;
//Expression
exprList.Rule = MakePlusRule(exprList, comma, expression);
expression.Rule = term | unExpr | binExpr | betweenExpr; //-- BETWEEN doesn't work - yet; brings a few parsing conflicts
term.Rule = Id | IdAsType | string_literal | number | funCall | tuple | aggregate; // | inStmt;
tuple.Rule = "(" + exprList + ")";
unExpr.Rule = unOp + term;
unOp.Rule = NOT | "+" | "-" | "~";
binExpr.Rule = expression + binOp + expression;
binOp.Rule = ToTerm("+") | "-" | "*" | "/" | "%" //arithmetic
| "&" | "|" | "^" //bit
| "=" | ">" | "<" | ">=" | "<=" | "<>" | "!=" | "!<" | "!>"
| "AND" | "OR" | "LIKE" | NOT + "LIKE" | IS | "IN" | NOT + "IN";
betweenExpr.Rule = expression + notOpt + "BETWEEN" + expression + "AND" + expression;
notOpt.Rule = Empty | NOT;
//funCall covers some psedo-operators and special forms like ANY(...), SOME(...), ALL(...), EXISTS(...), IN(...)
funCall.Rule = Id + "(" + funArgsList + ")" + (Empty | AS + typeName);
funArgsOpt.Rule = Empty | selectStmt | expression | string_literal | Id + "=" + term;
funArgsList.Rule = MakePlusRule(funArgsList, comma, funArgsOpt);
inStmt.Rule = expression + "IN" + "(" + exprList + ")";
//Operators
RegisterOperators(10, "*", "/", "%");
RegisterOperators(9, "+", "-");
RegisterOperators(8, "=", ">", "<", ">=", "<=", "<>", "!=", "!<", "!>", "LIKE", "IN");
RegisterOperators(7, "^", "&", "|");
RegisterOperators(6, NOT);
RegisterOperators(5, "AND");
RegisterOperators(4, "OR");
MarkPunctuation(",", "(", ")");
MarkPunctuation(asOpt, semiOpt);
//Note: we cannot declare binOp as transient because it includes operators "NOT LIKE", "NOT IN" consisting of two tokens.
// Transient non-terminals cannot have more than one non-punctuation child nodes.
// Instead, we set flag InheritPrecedence on binOp , so that it inherits precedence value from it's children, and this precedence is used
// in conflict resolution when binOp node is sitting on the stack
base.MarkTransient(stmt, term, asOpt, aliasOpt, stmtLine, expression, unOp, tuple);
binOp.SetFlag(TermFlags.InheritPrecedence);
} //constructor
public NaturalLanguageGrammar()
: base(false)
{
//Terminals
var cuantos = ToTerm("cuantos");
var cuantas = ToTerm("cuantas");
var cual = ToTerm("cual");
var que = ToTerm("que");
var cuando = ToTerm("cuando");
var tiene = ToTerm("tiene");
var esta = ToTerm("esta");
var en = ToTerm("en");
var antes = ToTerm("antes");
var despues = ToTerm("despues");
var de = ToTerm("de");
var mas = ToTerm("mas");
var menos = ToTerm("menos");
var mayor = ToTerm("mayor");
var menor = ToTerm("menor");
var muestra = ToTerm("muestra");
var muestrame = ToTerm("muestrame");
var todos = ToTerm("todos");
var todas = ToTerm("todas");
var los = ToTerm("los");
var las = ToTerm("las");
var el = ToTerm("el");
var la = ToTerm("la");
var actualiza = ToTerm("actualiza");
var cambia = ToTerm("cambia");
var su = ToTerm("su");
var por = ToTerm("por");
var plus = ToTerm("+");
var minus = ToTerm("-");
var mult = ToTerm("*");
var entre = ToTerm("entre");
var divided = ToTerm("/");
var cuanto = ToTerm("cuanto");
var es = ToTerm("es");
var number = new NumberLiteral("number");
var number2 = new NumberLiteral("number2");
var string_literal = new StringLiteral("string", "'", StringOptions.AllowsDoubledQuote);
//non terminals
var cuantosStatement = new NonTerminal("cuantosStatement");
var queStatement = new NonTerminal("queStatement");
var cuandoStatement = new NonTerminal("cuandoStatement");
var cualMayorMenorStatement = new NonTerminal("queMayorMenorStatement");
var cualMasMenosStatement = new NonTerminal("queMasMenosStatement");
var muestraTodoStatement = new NonTerminal("muestraTodoStatement");
var muestraUnoStatement = new NonTerminal("muestraUnoStatement");
var actualizaStatement = new NonTerminal("actualizaStatement");
var operacionesStatement = new NonTerminal("operacionesStatement");
var tabla = new NonTerminal("tabla");
var tabla2 = new NonTerminal("tabla2");
var campo = new NonTerminal("campo");
var whereCampo = new NonTerminal("whereCampo");
var id = new NonTerminal("id");
var comando = new NonTerminal("comando");
var whereId = new NonTerminal("whereId");
var valueSet = new NonTerminal("valueSet");
var antesdespues = new NonTerminal("antesdespues");
var cuantoscuantas = new NonTerminal("cuantoscuantas");
var mayormenor = new NonTerminal("mayormenor");
var masmenos = new NonTerminal("masmenos");
var todostodas = new NonTerminal("todostodas");
var ella = new NonTerminal("ella");
var loslas = new NonTerminal("loslas");
var muestramuestrame = new NonTerminal("muestramuestrame");
var suma = new NonTerminal("suma");
var resta = new NonTerminal("resta");
var multiplicacion = new NonTerminal("multiplicacion");
var division = new NonTerminal("division");
var Id_simple = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple"); //this covers normal identifiers (abc) and quoted id's ([abc d], "abc d")
id.Rule = Id_simple;
tabla.Rule = id;
tabla2.Rule = id;
antesdespues.Rule = (antes | despues);
cuantoscuantas.Rule = cuantos | cuantas;
mayormenor.Rule = mayor | menor;
masmenos.Rule = mas | menos;
todostodas.Rule = todos | todas;
ella.Rule = el | la;
loslas.Rule = los | las;
muestramuestrame.Rule = muestra | muestrame;
campo.Rule = id;
whereCampo.Rule = id;
whereId.Rule = string_literal | number;
valueSet.Rule = string_literal | number;
suma.Rule = mas | plus;
resta.Rule = menos | minus;
multiplicacion.Rule = por | mult;
division.Rule = entre | divided;
//Cuanto pregunta
cuantosStatement.Rule = (cuantoscuantas + tabla + tiene + tabla2 + whereId) | (en + cuantoscuantas + tabla + esta + tabla2 + whereId);
//que pregunta
queStatement.Rule = (que + campo + tiene + tabla + whereId) | (que + tabla + campo + antesdespues + de + whereId);
//que Mayor menor pregunta
cualMayorMenorStatement.Rule = cual + tabla + tiene + mayormenor + campo;
//que menos mas pregunta
cualMasMenosStatement.Rule = cual + tabla + tiene + masmenos + tabla2;
//cuando preguta
cuandoStatement.Rule = cuando + campo + tabla + whereId;
//muestra Todo pregunta
muestraTodoStatement.Rule = muestramuestrame + todostodas + loslas + tabla;
//muestra uno pregunta
muestraUnoStatement.Rule = muestramuestrame + ella + tabla + whereId;
//actualiza comando
actualizaStatement.Rule = actualiza + ella + tabla + whereCampo + cambia + su + campo + por + valueSet;
//operaciones matematicas
operacionesStatement.Rule = cuanto + es + number + (multiplicacion | suma | resta | division) + number2;
comando.Rule = cuantosStatement | queStatement | cuandoStatement | cualMasMenosStatement | cualMayorMenorStatement | muestraTodoStatement | muestraUnoStatement | actualizaStatement | operacionesStatement;
this.Root = comando;
}
public GraphQueryGrammar() : base(false)
{
// comments
var comment = new CommentTerminal("comment", "/*", "*/");
//var lineComment = new CommentTerminal("line_comment", "--", "\n", "\r\n");
var lineComment = new CommentTerminal("line_comment", "//", "\r", "\n", "\u2085", "\u2028", "\u2029");
NonGrammarTerminals.Add(comment);
NonGrammarTerminals.Add(lineComment);
// terminals
var string_literal = new StringLiteral("string", "'", StringOptions.AllowsDoubledQuote);
var number = new NumberLiteral("number", NumberOptions.AllowSign);
var name = TerminalFactory.CreateSqlExtIdentifier(this, "name"); //covers normal identifiers (abc) and quoted id's ([abc d], "abc d")
var comma = ToTerm(",");
var dot = ToTerm(".");
var SELECT = ToTerm("SELECT");
var WHERE = ToTerm("WHERE");
var CALCULATE = ToTerm("CALCULATE");
var GROUP_BY = ToTerm("GROUP BY");
var LAYOUT = ToTerm("LAYOUT");
var NOT = ToTerm("NOT");
// non terminals
var identifier = new NonTerminal("identifier");
var wildcardIdentifier = new NonTerminal("wildcardIdentifier");
var statementList = new NonTerminal("statementList");
var query = new NonTerminal("query");
var selectPropsClause = new NonTerminal("selectPropsClause");
var whereClauseOpt = new NonTerminal("whereClauseOpt");
var calculateClauseOpt = new NonTerminal("calculateClauseOpt");
var groupByClauseOpt = new NonTerminal("groupByClauseOpt");
var layoutClauseOpt = new NonTerminal("layoutClauseOpt");
var metricList = new NonTerminal("metricList");
var metric = new NonTerminal("metric");
var metricParamsOpt = new NonTerminal("metricParamsOpt");
var metricParam = new NonTerminal("metricParam");
var metricParamsList = new NonTerminal("metricParamsList");
var props = new NonTerminal("props");
var prop = new NonTerminal("prop");
var propAliasOpt = new NonTerminal("propAliasOpt");
var expression = new NonTerminal("expression");
var parenthesizedExpression = new NonTerminal("parenthesizedExpression");
var edgeTraversalExpression = new NonTerminal("edgeTraversalExpression");
var valueExpression = new NonTerminal("valueExpression");
var valueOperator = new NonTerminal("valueOperator");
var term = new NonTerminal("term");
var binaryExpression = new NonTerminal("binaryExpression");
var booleanTerminal = new NonTerminal("booleanTerminal");
var binaryOperator = new NonTerminal("binaryOperator");
var assignmentExpression = new NonTerminal("assignmentExpression");
var layoutProps = new NonTerminal("layoutProps");
var selectPropExpression = new NonTerminal("selectPropExpression");
var parenthesizedSelectExpression = new NonTerminal("parenthesizedSelectExpression");
var binarySelectExpression = new NonTerminal("binarySelectExpression");
var binarySelectOperator = new NonTerminal("binarySelectOperator");
this.Root = statementList;
statementList.Rule = MakePlusRule(statementList, query);
// SELECT statement
query.Rule = SELECT + selectPropsClause + whereClauseOpt + calculateClauseOpt + groupByClauseOpt + layoutClauseOpt;
// select column list
selectPropsClause.Rule = props;// | "*";
prop.Rule = selectPropExpression + propAliasOpt;
propAliasOpt.Rule = (Empty | "AS" + identifier);
props.Rule = MakePlusRule(props, comma, prop);
wildcardIdentifier.Rule = MakePlusRule(wildcardIdentifier, dot, (name | "*"));
identifier.Rule = MakePlusRule(identifier, dot, name);
selectPropExpression.Rule = (wildcardIdentifier | binarySelectExpression | parenthesizedSelectExpression | string_literal | number);
parenthesizedSelectExpression.Rule = ToTerm("(") + selectPropExpression + ")";
binarySelectExpression.Rule = selectPropExpression + binarySelectOperator + selectPropExpression;
binarySelectOperator.Rule = ToTerm("UNION") | "LIKE";
// WHERE clause
whereClauseOpt.Rule = Empty | WHERE + expression;
expression.Rule = edgeTraversalExpression | valueExpression | parenthesizedExpression | binaryExpression | booleanTerminal;
edgeTraversalExpression.Rule = (ToTerm("edge") | "in_edge" | "out_edge" | "mutual_edge") + "(" + expression + ")";
parenthesizedExpression.Rule = ToTerm("(") + expression + ")";
valueExpression.Rule = term + valueOperator + term;
valueOperator.Rule = ToTerm("=") | "!=" | ">" | "<" | ">=" | "<=" | "LIKE" | NOT + "LIKE" | "INTERSECTS";
term.Rule = identifier | string_literal | number;
booleanTerminal.Rule = ToTerm("any") | "true" | "false";
binaryExpression.Rule = expression + binaryOperator + expression;
binaryOperator.Rule = ToTerm("AND") | "OR";
//// CALCULATE clause
calculateClauseOpt.Rule = Empty | CALCULATE + metricList;
metricList.Rule = MakePlusRule(metricList, comma, metric);
metric.Rule = identifier + metricParamsOpt;
metricParamsOpt.Rule = Empty | "(" + metricParamsList + ")";
metricParam.Rule = expression | identifier | string_literal | number;
metricParamsList.Rule = MakePlusRule(metricParamsList, comma, metricParam);
//// GROUP BY clause
groupByClauseOpt.Rule = Empty | GROUP_BY + metricList;
// LAYOUT clause
layoutClauseOpt.Rule = Empty | LAYOUT + layoutProps;
layoutProps.Rule = MakePlusRule(assignmentExpression, comma, assignmentExpression);
assignmentExpression.Rule = term + "=" + term;
// OPERATORS
MarkTransient(expression, parenthesizedExpression, binaryOperator, selectPropsClause, term, metricParamsOpt, metricParam, selectPropExpression, parenthesizedSelectExpression,
binarySelectOperator);
MarkPunctuation(",", "(", ")");
RegisterBracePair("(", ")");
RegisterOperators(80, "=", ">", "<", ">=", "<=", "<>", "!=", "!<", "!>", "LIKE", "IN");
RegisterOperators(70, "UNION", "LIKE");
RegisterOperators(60, NOT);
RegisterOperators(50, "AND");
RegisterOperators(40, "OR");
//AddToNoReportGroup(selectPropsClause, "-");
}
public CuLeGrammar()
: base(false) // Case Insensitive
{
//Terminals
var comment = new CommentTerminal("comment", "/*", "*/");
var lineComment = new CommentTerminal("line_comment", "--", "\n", "\r\n");
var Id_simple = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple"); //covers normal identifiers (abc) and quoted id's ([abc d], "abc d")
NonGrammarTerminals.Add(comment);
NonGrammarTerminals.Add(lineComment);
var CREATE = ToTerm("CREATE");
var NULL = ToTerm("NULL");
var NOT = ToTerm("NOT");
var UNIQUE = ToTerm("UNIQUE");
var WITH = ToTerm("WITH");
var TABLE = ToTerm("TABLE");
var FOREACH = ToTerm("FOREACH");
var COLUMN = ToTerm("COLUMN");
var CONSTRAINT = ToTerm("CONSTRAINT");
var KEY = ToTerm("KEY");
var PRIMARY = ToTerm("PRIMARY");
var dot = ToTerm(".");
var comma = ToTerm(",");
var number = new NumberLiteral("number");
//Non-terminals
var Id = new NonTerminal("Id");
var stmt = new NonTerminal("stmt");
var createTableStmt = new NonTerminal("createTableStmt");
var fieldDef = new NonTerminal("fieldDef");
var fieldDefList = new NonTerminal("fieldDefList");
var typeName = new NonTerminal("typeName");
var typeSpec = new NonTerminal("typeSpec");
var typeParamsOpt = new NonTerminal("typeParams");
var constraintDef = new NonTerminal("constraintDef");
var constraintListOpt = new NonTerminal("constraintListOpt");
var constraintTypeOpt = new NonTerminal("constraintTypeOpt");
var idlist = new NonTerminal("idlist");
var idlistPar = new NonTerminal("idlistPar");
var stmtList = new NonTerminal("stmtList");
var stmtLine = new NonTerminal("stmtLine");
var semiOpt = new NonTerminal("semiOpt");
var nullSpecOpt = new NonTerminal("nullSpecOpt");
var CuLeRule = new NonTerminal("CuLeRule");
var CuLeRuleList = new NonTerminal("CuLeRuleList");
var CuLeRuleStmt = new NonTerminal("CuLeRuleStmt");
var CuLeRuleName = new NonTerminal("CuLeRuleName");
var Set = new NonTerminal("Set");
var Attribute = new NonTerminal("Attribute");
var Tuple = new NonTerminal("Tuple");
var TupleList = new NonTerminal("TupleList");
var Constant = new NonTerminal("Constant");
var Quantifier = new NonTerminal("Quantifier");
var QuantifierList = new NonTerminal("QuantifierList");
var QuantifierStmt = new NonTerminal("QuantifierStmt");
var TransactionParameter = new NonTerminal("TransactionParameter");
var TransactionSingleValueParameter = new NonTerminal("TransactionSingleValueParameter");
// var TransactionMultiValueParameter = new NonTerminal("TransactionMultiValueParameter");
var TransactionParameterName = new NonTerminal("TransactionParameterName");
var TransactionParameterType = new NonTerminal("TransactionParameterType");
var TransactionParameterList = new NonTerminal("TransactionParameterList");
var TableName = new NonTerminal("TableName");
var ArgumentName = new NonTerminal("ArgumentName");
var Multiplicity = new NonTerminal("Multiplicity");
var Cardinality_1to1 = new NonTerminal("Cardinality_1to1");
var Cardinality_1ton = new NonTerminal("Cardinality_1ton");
var Cardinality_nton = new NonTerminal("Cardinality_nton");
var SetOperator = new NonTerminal("SetOperator");
var SetOperator_IN = new NonTerminal("SetOperator_IN");
var SetOperator_EQ = new NonTerminal("SetOperator_EQ");
var SetOperator_NE = new NonTerminal("SetOperator_NE");
var SetOperator_ST = new NonTerminal("SetOperator_ST");
var SetOperator_GT = new NonTerminal("SetOperator_GT");
var SetOperator_GE = new NonTerminal("SetOperator_GE");
var SetOperator_SE = new NonTerminal("SetOperator_SE");
var WhereClause = new NonTerminal("WhereClause");
var WhereExpression = new NonTerminal("WhereExpression");
var TransactionStmt = new NonTerminal("TransactionStmt");
var Changing = new NonTerminal("Changing");
var Precondition = new NonTerminal("Precondition");
var Input_Restriction = new NonTerminal("Input_Restriction");
var Result = new NonTerminal("Result");
var ChangeObject = new NonTerminal("ChangeObject");
var ChangeObjectList = new NonTerminal("ChangeObjectList");
var CuLeAssertion = new NonTerminal("CuLeAssertion");
var CuLeAssertionList = new NonTerminal("CuLeAssertionList");
var State = new NonTerminal("State");
//BNF Rules
this.Root = stmtList;
stmtLine.Rule = stmt + semiOpt;
semiOpt.Rule = Empty | ";";
stmtList.Rule = MakePlusRule(stmtList, stmtLine);
//ID
//Id.Rule = MakePlusRule(Id, dot, Id_simple);
Id.Rule = Id_simple;
stmt.Rule = createTableStmt | CuLeRuleStmt | TransactionStmt;
//Create table
createTableStmt.Rule = CREATE + TABLE + Id + "(" + fieldDefList + ")" + constraintListOpt;
fieldDefList.Rule = MakePlusRule(fieldDefList, comma, fieldDef);
fieldDef.Rule = Id + typeName + typeParamsOpt + nullSpecOpt;
nullSpecOpt.Rule = NULL | NOT + NULL | Empty;
//typeName.Rule = ToTerm("BIT") | "DATE" | "TIME" | "TIMESTAMP" | "DECIMAL" | "REAL" | "FLOAT" | "SMALLINT" | "INTEGER" | "CHARACTER"
// // MS SQL types:
// | "DATETIME" | "INT" | "DOUBLE" | "CHAR" | "NCHAR" | "VARCHAR" | "NVARCHAR"
// | "IMAGE" | "TEXT" | "NTEXT";
typeName.Rule = ToTerm("DATE") | "TIME" | "DECIMAL" | "FLOAT" | "INTEGER" | "CHARACTER" | "INT" | "DOUBLE" | "CHAR";
//typeParamsOpt.Rule = "(" + number + ")" | "(" + number + comma + number + ")" | Empty;
typeParamsOpt.Rule = "(" + number + ")" | Empty;
constraintDef.Rule = CONSTRAINT + Id + constraintTypeOpt;
constraintListOpt.Rule = MakeStarRule(constraintListOpt, constraintDef);
constraintTypeOpt.Rule = PRIMARY + KEY + idlistPar | UNIQUE + idlistPar | NOT + NULL + idlistPar
| "FOREIGN" + KEY + idlistPar + "REFERENCES" + Id + idlistPar
| "FOREIGN" + KEY + idlistPar + "REFERENCES" + Id + idlistPar + "Multiplicity" + Multiplicity;
idlistPar.Rule = "(" + idlist + ")";
idlist.Rule = MakePlusRule(idlist, comma, Id);
Multiplicity.Rule = Cardinality_1to1 | Cardinality_1ton | Cardinality_nton;
Cardinality_1to1.Rule = "1 to 1";
Cardinality_1ton.Rule = "1 to many";
Cardinality_nton.Rule = "many to many";
WhereClause.Rule = "( WHERE" + WhereExpression + ")";
WhereExpression.Rule = ArgumentName + SetOperator + Set | "(" + WhereExpression + ")" | WhereExpression + "AND" + WhereExpression | WhereExpression + "OR" + WhereExpression;
Set.Rule = ArgumentName | "{" + TupleList + "}" | "EMPTYSET" | Set + "." + Attribute | Set + "Union" + Set | Set + "Intersect" + Set | Constant | Set + WhereClause | Set + "Minus" + Set | "<" + State + ">" + Set | "(" + Set + ")";
Tuple.Rule = Id;
TableName.Rule = Id;
Attribute.Rule = Id | "~" + Id;
ArgumentName.Rule = Id;
Constant.Rule = "CONSTANT" + typeName + "(" + Id_simple + ")";
TupleList.Rule = MakePlusRule(TupleList, comma, Tuple);
Quantifier.Rule = TableName + Tuple;
QuantifierList.Rule = MakePlusRule(QuantifierList, comma, Quantifier);
QuantifierStmt.Rule = FOREACH + "(" + QuantifierList + ")";
SetOperator_IN.Rule = "IN";
SetOperator_EQ.Rule = "=";
SetOperator_NE.Rule = "!=";
SetOperator_ST.Rule = "<";
SetOperator_GT.Rule = ">";
SetOperator_GE.Rule = ">=";
SetOperator_SE.Rule = "<=";
SetOperator.Rule = SetOperator_IN | SetOperator_EQ | SetOperator_NE | SetOperator_ST | SetOperator_GT | SetOperator_GE | SetOperator_SE;
CuLeRule.Rule = Set + SetOperator + Set
| "(" + CuLeRule + ")"
| CuLeRule + "OR" + CuLeRule
| CuLeRule + "AND" + CuLeRule
| "NOT" + CuLeRule
| "IF" + CuLeRule + "THEN" + CuLeRule
| "IF" + CuLeRule + "THEN" + CuLeRule + "ELSE" + CuLeRule
| CuLeRule + "IFF" + CuLeRule
;
CuLeRuleList.Rule = MakePlusRule(CuLeRuleList, comma, CuLeRule);
CuLeRuleName.Rule = "Rule" + Id + ":";
CuLeRuleStmt.Rule = CuLeRuleName + CuLeRuleList | CuLeRuleName + QuantifierStmt + ": (" + CuLeRuleList + ")";
TransactionStmt.Rule = "Transaction" + Id + "(" + TransactionParameterList + ")" + "{" + Changing + Precondition + Input_Restriction + Result + "}";
Changing.Rule = "Changing" + "(" + ChangeObjectList + ")" | Empty + Changing | Changing + Empty;
Precondition.Rule = "Precondition" + CuLeAssertionList | Precondition + Empty | Empty + Precondition;
Input_Restriction.Rule = "Input_Restriction" + "(" + CuLeRuleList + ")" | "Input_Restriction" + "(" + Empty + ")";
Result.Rule = "Result" + CuLeAssertionList | Empty + Result | Result + Empty;
ChangeObjectList.Rule = MakePlusRule(ChangeObjectList, comma, ChangeObject);
ChangeObject.Rule = Set;
TransactionParameterName.Rule = Id;
TransactionParameterType.Rule = Id;
TransactionSingleValueParameter.Rule = TransactionParameterType + TransactionParameterName;
TransactionParameter.Rule = TransactionSingleValueParameter;
TransactionParameterList.Rule = MakePlusRule(TransactionParameterList, comma, TransactionParameter);
CuLeAssertion.Rule = "(" + CuLeRuleList + ")" | "(" + QuantifierStmt + ": (" + CuLeRuleList + ")" + ")";
CuLeAssertionList.Rule = MakePlusRule(CuLeAssertionList, comma, CuLeAssertion);
State.Rule = Id;
}
public SqlGrammar() : base(false)
{
var comment = new CommentTerminal("comment", "/*", "*/");
var lineComment = new CommentTerminal("line_comment", "--", "\n", "\r\n");
NonGrammarTerminals.Add(comment);
NonGrammarTerminals.Add(lineComment);
var number = new NumberLiteral("number");
number.AstConfig.NodeType = typeof(NumberNode);
var stringLiteral = new StringLiteral("string", "'", StringOptions.AllowsDoubledQuote);
stringLiteral.AstConfig.NodeType = typeof(StringLiteralNode);
var simpleId = TerminalFactory.CreateSqlExtIdentifier(this, "id_simple");
simpleId.AstConfig.NodeType = typeof(SimpleIdNode);
var dateTime = new RegexBasedTerminal("date time", @"\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d.\d\d\d\d\d\d\d");
dateTime.AstConfig.NodeType = typeof(DateTimeNode);
var comma = ToTerm(",");
var dot = ToTerm(".");
var CREATE = ToTerm("CREATE");
var SHOW = ToTerm("SHOW");
var NULL = ToTerm("NULL");
var NOT = ToTerm("NOT");
var UNIQUE = ToTerm("UNIQUE");
var TABLE = ToTerm("TABLE");
var ALTER = ToTerm("ALTER");
var ADD = ToTerm("ADD");
var COLUMN = ToTerm("COLUMN");
var DROP = ToTerm("DROP");
var CONSTRAINT = ToTerm("CONSTRAINT");
var KEY = ToTerm("KEY");
var PRIMARY = ToTerm("PRIMARY");
var SELECT = ToTerm("SELECT");
var FROM = ToTerm("FROM");
var AS = ToTerm("AS");
var COUNT = ToTerm("COUNT");
var BY = ToTerm("BY");
var INTO = ToTerm("INTO");
var ON = ToTerm("ON");
var BEGIN_TRANSACTION = ToTerm("BEGIN TRANSACTION");
var COMMIT = ToTerm("COMMIT");
var ROLLBACK = ToTerm("ROLLBACK");
var SET = ToTerm("SET");
var UPDATE = ToTerm("UPDATE");
var INSERT = ToTerm("INSERT");
var VALUES = ToTerm("VALUES");
var STAR = ToTerm("*");
var ALL = ToTerm("ALL");
var UNION = ToTerm("UNION");
var INTERSECT = ToTerm("INTERSECT");
var EXCEPT = ToTerm("EXCEPT");
var JOIN = ToTerm("JOIN");
var DELETE = ToTerm("DELETE");
var FOR = ToTerm("FOR");
var SYSTEM_TIME = ToTerm("SYSTEM_TIME");
var BETWEEN = ToTerm("BETWEEN");
var AND = ToTerm("AND");
var OF = ToTerm("OF");
var TO = ToTerm("TO");
var OR = ToTerm("OR");
var stmtList = new NonTerminal("stmtList", typeof(StmtListNode));
var stmtLine = new NonTerminal("stmtLine", typeof(StmtLineNode));
var semiOpt = new NonTerminal("semiOpt", typeof(SqlNode));
var sqlCommand = new NonTerminal("sqlSequence", typeof(SqlCommandNode));
var transaction = new NonTerminal("transaction", typeof(TransactionNode));
var transactionList = new NonTerminal("transactionList", typeof(TransactionListNode));
var transactionBeginOpt = new NonTerminal("transactionBeginOp", typeof(TransactionBeginOptNode));
var transactionEndOpt = new NonTerminal("transactionEndOp", typeof(TransactionEndOptNode));
var transactionName = new NonTerminal("transactionName", typeof(TransactionNameNode));
var id = new NonTerminal("id", typeof(IdNode));
var createTableStmt = new NonTerminal("CreateTableStmt", typeof(CreateTableCommandNode));
var showTableStmt = new NonTerminal("ShowTableStmt", typeof(ShowTableCommandNode));
var dropTableStmt = new NonTerminal("DropTableStmt", typeof(DropTableCommandNode));
var fieldDef = new NonTerminal("fieldDef", typeof(FieldDefNode));
var fieldDefList = new NonTerminal("fieldDefList", typeof(FieldDefListNode));
var nullSpecOpt = new NonTerminal("nullSpecOpt", typeof(NullSpectOptNode));
var typeName = new NonTerminal("typeName", typeof(TypeNameNode));
var typeParamsOpt = new NonTerminal("typeParams", typeof(TypeParamsOptNode));
var constraintDef = new NonTerminal("constraintDef", typeof(ConstraintDefNode));
var constraintListOpt = new NonTerminal("constraintListOpt", typeof(ConstraintListOptNodes));
var alterStmt = new NonTerminal("AlterStmt", typeof(SqlNode));
var alterCmd = new NonTerminal("alterCmd", typeof(SqlNode));
//var expressionWithoutBrackets = new NonTerminal("expression", typeof(ExpressionNode));
var asOpt = new NonTerminal("asOpt", typeof(SqlNode));
var aliasOpt = new NonTerminal("aliasOpt", typeof(SqlNode));
var tuple = new NonTerminal("tuple", typeof(SqlNode));
var term = new NonTerminal("term", typeof(TermNode));
var unOp = new NonTerminal("unOp", typeof(UnOpNode));
var binOp = new NonTerminal("binOp", typeof(BinOpNode));
var selectStmt = new NonTerminal("SelectStmt", typeof(SelectCommandNode));
var expressionList = new NonTerminal("exprList", typeof(ExpressionListNode));
var selRestrOpt = new NonTerminal("selRestrOpt", typeof(SqlNode));
var selList = new NonTerminal("selList", typeof(SelListNode));
var intoClauseOpt = new NonTerminal("intoClauseOpt", typeof(SqlNode));
var forClauseOpt = new NonTerminal("forClauseOpt", typeof(ForClauseOptNode));
var systemTimeOpt = new NonTerminal("systemTimeOpt", typeof(SystemTimeOptNode));
var fromClauseOpt = new NonTerminal("fromClauseOpt", typeof(FromClauseNode));
var betweenTimeSelector = new NonTerminal("betweenSelector", typeof(BetweenTimeSelectorNode));
var fromToTimeSelector = new NonTerminal("fromToSelector", typeof(FromToTimeSelectorNode));
var asOfTimeSelector = new NonTerminal("asOfSelector", typeof(AsOfTimeSelectorNode));
var groupClauseOpt = new NonTerminal("groupClauseOpt", typeof(SqlNode));
var havingClauseOpt = new NonTerminal("havingClauseOpt", typeof(SqlNode));
var orderClauseOpt = new NonTerminal("orderClauseOpt", typeof(SqlNode));
var whereClauseOpt = new NonTerminal("whereClauseOpt", typeof(WhereClauseNode));
var columnItemList = new NonTerminal("columnItemList", typeof(ColumnItemListNode));
var columnItem = new NonTerminal("columnItem", typeof(ColumnItemNode));
var columnSource = new NonTerminal("columnSource", typeof(ColumnSourceNode));
var idList = new NonTerminal("idList", typeof(IdListNode));
var idlistPar = new NonTerminal("idlistPar", typeof(SqlNode));
var aggregate = new NonTerminal("aggregate", typeof(SqlNode));
var aggregateArg = new NonTerminal("aggregateArg", typeof(SqlNode));
var aggregateName = new NonTerminal("aggregateName", typeof(SqlNode));
var orderList = new NonTerminal("orderList", typeof(SqlNode));
var orderMember = new NonTerminal("orderMember", typeof(SqlNode));
var orderDirOpt = new NonTerminal("orderDirOpt", typeof(SqlNode));
var unExpr = new NonTerminal("unExpr", typeof(UnExprNode));
var binExpr = new NonTerminal("binExpr", typeof(BinExprNode));
var funCall = new NonTerminal("funCall", typeof(SqlNode));
var parSelectStmt = new NonTerminal("parSelectStmt", typeof(SqlNode));
var betweenExpr = new NonTerminal("betweenExpr", typeof(SqlNode));
var notOpt = new NonTerminal("notOpt", typeof(SqlNode));
var funArgs = new NonTerminal("funArgs", typeof(SqlNode));
var inStmt = new NonTerminal("inStmt", typeof(SqlNode));
var updateStmt = new NonTerminal("UpdateStmt", typeof(UpdateCommandNode));
var insertStmt = new NonTerminal("InsertStmt", typeof(InsertCommandNode));
var intoOpt = new NonTerminal("intoOpt", typeof(SqlNode));
var insertDataList = new NonTerminal("insertDataList", typeof(InsertDataListNode));
var insertObject = new NonTerminal("insertObject", typeof(InsertObjectNode));
var insertData = new NonTerminal("InsertData", typeof(InsertDataNode));
var assignList = new NonTerminal("assignList", typeof(AssignmentListNode));
var assignment = new NonTerminal("assignment", typeof(AssignmentNode));
var columnNames = new NonTerminal("columnNames", typeof(ColumnNamesNode));
var expression = new NonTerminal("expression", typeof(ExpressionNode));
var idOperator = new NonTerminal("idOperator", typeof(IdOperatorNode));
var idLink = new NonTerminal("idLink", typeof(IdLinkNode));
var joinChainOpt = new NonTerminal("joinChainOpt", typeof(JoinChainOptNode));
var joinKindOpt = new NonTerminal("joinKindOpt", typeof(JoinKindOptNode));
var joinStatement = new NonTerminal("joinStatement", typeof(JoinStatementNode));
var unionChainOpt = new NonTerminal("unionChainOpt", typeof(UnionChainOptNode));
var unionKindOpt = new NonTerminal("unionKindOpt", typeof(UnionKindOptNode));
var intersectChainOpt = new NonTerminal("intersectChainOpt", typeof(InsertCommandNode));
var exceptChainOpt = new NonTerminal("exceptChainOpt", typeof(ExceptChainOptNode));
var deleteStmt = new NonTerminal("DeleteStmt", typeof(DeleteCommandNode));
//BNF Rules
Root = transactionList;
transactionName.Rule = id | Empty;
transactionBeginOpt.Rule = BEGIN_TRANSACTION + transactionName;
transactionEndOpt.Rule = COMMIT | ROLLBACK;
transaction.Rule = transactionBeginOpt + stmtList + transactionEndOpt | stmtLine;
transactionList.Rule = MakePlusRule(transactionList, transaction);
stmtList.Rule = MakePlusRule(stmtList, stmtLine);
stmtLine.Rule = sqlCommand + semiOpt;
sqlCommand.Rule = createTableStmt | alterStmt | deleteStmt
| dropTableStmt | showTableStmt | selectStmt | updateStmt | insertStmt;
semiOpt.Rule = Empty | ";";
//ID link node
idOperator.Rule = joinChainOpt | unionChainOpt | intersectChainOpt | exceptChainOpt | selectStmt;
idLink.Rule = "(" + idOperator + ")" | id;
//Join
joinChainOpt.Rule = idLink + joinKindOpt + JOIN + idLink + ON + joinStatement;
joinKindOpt.Rule = Empty | "INNER" | "LEFT" | "RIGHT" | "Full";
joinStatement.Rule = expression;//"(" + id + "=" + id + ")" | id + "=" + id;
//Union
unionChainOpt.Rule = idLink + UNION + unionKindOpt + idLink;
unionKindOpt.Rule = Empty | ALL;
//Intersect
intersectChainOpt.Rule = idLink + INTERSECT + idLink;
//Except
exceptChainOpt.Rule = idLink + EXCEPT + idLink;
//ID
id.Rule = MakePlusRule(id, dot, simpleId);
idlistPar.Rule = "(" + idList + ")";
idList.Rule = MakePlusRule(idList, comma, id);
//Create table
createTableStmt.Rule = CREATE + TABLE + id + "(" + fieldDefList + ")";
fieldDefList.Rule = MakePlusRule(fieldDefList, comma, fieldDef);
fieldDef.Rule = id + typeName + typeParamsOpt + constraintListOpt + nullSpecOpt;
nullSpecOpt.Rule = NULL | NOT + NULL | Empty;
typeName.Rule = ToTerm("DATETIME") | "INT" | "DOUBLE" | "CHAR" | "NCHAR" | "VARCHAR" | "NVARCHAR"
| "IMAGE" | "TEXT" | "NTEXT";
typeParamsOpt.Rule = "(" + number + ")" | "(" + number + comma + number + ")" | Empty;
constraintListOpt.Rule = MakeStarRule(constraintListOpt, constraintDef);
constraintDef.Rule = (UNIQUE) | (PRIMARY + KEY) | ("FOREIGN" + KEY + "REFERENCES" + id) | ("DEFAULT" + stringLiteral) | ("INDEX" + id);
//Delete stmt
deleteStmt.Rule = DELETE + FROM + id + whereClauseOpt;
//Alter
alterStmt.Rule = ALTER + TABLE + id + alterCmd;
alterCmd.Rule = ADD + simpleId + "(" + fieldDefList + ")" | DROP + COLUMN + id
| ALTER + COLUMN + id + typeName + (ADD + CONSTRAINT + constraintListOpt
| DROP + CONSTRAINT + constraintListOpt);
//Drop stmts
dropTableStmt.Rule = DROP + TABLE + id;
//Show table
showTableStmt.Rule = SHOW + TABLE + id;
//Select stmt
selectStmt.Rule = SELECT + selRestrOpt + selList + intoClauseOpt + fromClauseOpt + forClauseOpt + whereClauseOpt +
groupClauseOpt + havingClauseOpt + orderClauseOpt;
selRestrOpt.Rule = Empty | ALL | "DISTINCT";
selList.Rule = columnItemList | STAR;
columnItemList.Rule = MakePlusRule(columnItemList, comma, columnItem);
columnItem.Rule = columnSource + aliasOpt;
aliasOpt.Rule = Empty | asOpt + id;
asOpt.Rule = Empty | AS;
columnSource.Rule = aggregate | id;
aggregate.Rule = aggregateName + "(" + aggregateArg + ")";
aggregateArg.Rule = expression | STAR;
aggregateName.Rule = COUNT | "Avg" | "Min" | "Max" | "StDev" | "StDevP" | "Sum" | "Var" | "VarP";
intoClauseOpt.Rule = Empty | INTO + id;
forClauseOpt.Rule = Empty | FOR + systemTimeOpt;
systemTimeOpt.Rule = SYSTEM_TIME + betweenTimeSelector | SYSTEM_TIME + fromToTimeSelector | SYSTEM_TIME + asOfTimeSelector;
betweenTimeSelector.Rule = BETWEEN + dateTime + AND + dateTime;
fromToTimeSelector.Rule = FROM + dateTime + TO + dateTime;
asOfTimeSelector.Rule = AS + OF + dateTime;
fromClauseOpt.Rule = Empty | FROM + idLink;
whereClauseOpt.Rule = Empty | "WHERE" + expression;
groupClauseOpt.Rule = Empty | "GROUP" + BY + idList;
havingClauseOpt.Rule = Empty | "HAVING" + expression;
orderClauseOpt.Rule = Empty | "ORDER" + BY + orderList;
orderList.Rule = MakePlusRule(orderList, comma, orderMember);
orderMember.Rule = id + orderDirOpt;
orderDirOpt.Rule = Empty | "ASC" | "DESC";
//Insert stmt
insertStmt.Rule = INSERT + intoOpt + id + columnNames + insertData;
insertDataList.Rule = MakePlusRule(insertDataList, comma, insertObject);
insertObject.Rule = "(" + expressionList + ")";
columnNames.Rule = idlistPar | Empty;
insertData.Rule = selectStmt | VALUES + insertDataList;
intoOpt.Rule = Empty | INTO; //Into is optional in MSSQL
//Update stmt
updateStmt.Rule = UPDATE + id + SET + assignList + whereClauseOpt;
assignList.Rule = MakePlusRule(assignList, comma, assignment);
assignment.Rule = id + "=" + expression;
//Expression
expressionList.Rule = MakePlusRule(expressionList, comma, expression);
//expression.Rule = /*"(" + expressionWithoutBrackets + ")" |*/ expressionWithoutBrackets;
expression.Rule = "(" + expression + ")" | binExpr | unExpr | term; // Add betweenExpr
term.Rule = id | stringLiteral | number; //| funCall | tuple | parSelectStmt;// | inStmt;
tuple.Rule = "(" + expressionList + ")";
parSelectStmt.Rule = "(" + selectStmt + ")";
unExpr.Rule = unOp + "(" + expression + ")" | unOp + term;
unOp.Rule = NOT | "+" | "-" | "~";
binExpr.Rule = expression + binOp + expression;
binOp.Rule = ToTerm("+") | "-" | "*" | "/" | "%" | "&" | "|" | "^"
| "=" | ">" | "<" | ">=" | "<=" | "<>" | "!=" | "!<" | "!>"
| "AND" | "OR" | "LIKE" | NOT + "LIKE" | "IN" | NOT + "IN";
betweenExpr.Rule = expression + notOpt + BETWEEN + expression + AND + expression;
notOpt.Rule = Empty | NOT;
funCall.Rule = id + "(" + funArgs + ")";
funArgs.Rule = selectStmt | expressionList;
inStmt.Rule = expression + "IN" + "(" + expressionList + ")";
//Operators
RegisterOperators(10, "*", "/", "%");
RegisterOperators(10, JOIN, UNION, INTERSECT, EXCEPT);
RegisterOperators(9, "+", "-");
RegisterOperators(8, "=", ">", "<", ">=", "<=", "<>", "!=", "!<", "!>", "LIKE", "IN");
RegisterOperators(7, "^", "&", "|");
RegisterOperators(6, NOT);
RegisterOperators(5, AND);
RegisterOperators(4, OR);
MarkPunctuation(",", "(", ")");
MarkPunctuation(asOpt, semiOpt);
MarkTransient(sqlCommand, term, asOpt, aliasOpt, stmtLine, tuple, /*expression,*/ idlistPar, idOperator);
//LanguageFlags = LanguageFlags.CreateAst;
binOp.SetFlag(TermFlags.InheritPrecedence);
}
