svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / grammars / BasicGrammarFactory.java @ 47017
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package org.gvsig.expressionevaluator.impl.grammars; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.Code; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_CAST; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_DATE; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_EXTRACT; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_LIST; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_TIME; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_TIMESTAMP; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.OPERATOR_REGEXP; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
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import org.gvsig.expressionevaluator.Grammar; |
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import org.gvsig.expressionevaluator.Statement; |
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import org.gvsig.expressionevaluator.Statement.StatementContext; |
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import org.gvsig.expressionevaluator.impl.DefaultCodeBuilder.BaseCodes; |
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import org.gvsig.expressionevaluator.impl.DefaultStatement.StatementBuilderBase; |
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import org.gvsig.expressionevaluator.impl.DefaultStatement.ArgsBuilderFromNames; |
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import org.gvsig.expressionevaluator.impl.function.programming.CaseFunction; |
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import org.gvsig.expressionevaluator.impl.function.programming.CodeBlockFunction; |
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import org.gvsig.expressionevaluator.impl.function.programming.CodeBlockWithExceptFunction; |
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import org.gvsig.expressionevaluator.impl.function.programming.CreateFnFunction; |
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import org.gvsig.expressionevaluator.impl.function.programming.ForEachFunction; |
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import org.gvsig.expressionevaluator.impl.function.programming.ReturnFunction; |
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import org.gvsig.expressionevaluator.impl.function.programming.WhileFunction; |
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import org.gvsig.expressionevaluator.spi.AbstractGrammarFactory; |
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import org.gvsig.expressionevaluator.Code.Callable; |
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import org.gvsig.expressionevaluator.Codes; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_DICT; |
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import org.gvsig.expressionevaluator.impl.function.programming.BreakFunction; |
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|
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/**
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*
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* @author jjdelcerro
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*/
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public class BasicGrammarFactory extends AbstractGrammarFactory { |
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private Grammar grammar;
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public static class DictArgsBuilder implements Statement.ArgsBuilder { |
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protected final String keyName; |
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protected final String valueName; |
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public DictArgsBuilder(String keyName, String valueName) { |
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this.keyName = keyName;
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this.valueName = valueName;
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} |
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|
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@Override
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public String toString() { |
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return "dict_args(" + this.keyName + "," + this.valueName + ")"; |
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} |
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|
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@Override
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public Codes build(StatementContext context) {
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context.trace(this.toString() + ".build"); |
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BaseCodes args = (BaseCodes) context.getCodeBuilder().args(); |
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if (keyName.contains("#")) { |
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int n = 1; |
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while (true) { |
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String keyNameX = StringUtils.replace(keyName, "#", String.valueOf(n).trim(), 1); |
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String valueNameX = StringUtils.replace(valueName, "#", String.valueOf(n).trim(), 1); |
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Code keyCodeX = context.getCode(keyNameX); |
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if (keyCodeX == null) { |
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break;
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} |
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Code valueCodeX = context.getCode(valueNameX); |
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args.add(keyCodeX); |
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args.add(valueCodeX); |
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n++; |
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} |
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} else {
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args.add(context.getCodeBuilder().constant(keyName)); |
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args.add(context.getCode(valueName)); |
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} |
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return args;
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} |
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} |
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private class BeginStatementBuilder extends StatementBuilderBase { |
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private final String blockID; |
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private final String exceptID; |
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public BeginStatementBuilder(String blockID, String exceptID) { |
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super(CodeBlockFunction.NAME, new ArgsBuilderFromNames(blockID)); |
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this.blockID = blockID;
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this.exceptID = exceptID;
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} |
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@Override
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public Code build(StatementContext context) {
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Callable code = (Callable) super.build(context); |
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Code exceptCode = context.getCode(this.exceptID);
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if (exceptCode == null) { |
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return code;
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} |
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BaseCodes args = (BaseCodes) code.parameters(); |
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args.add(exceptCode); |
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code = context.getCodeBuilder().function(CodeBlockWithExceptFunction.NAME, args); |
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return code;
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} |
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} |
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public static class VarArgsBuilder implements Statement.ArgsBuilder { |
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protected final String varName; |
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protected final String valueName; |
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public VarArgsBuilder(String varName, String valueName) { |
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this.varName = varName;
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this.valueName = valueName;
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} |
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@Override
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public String toString() { |
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return "var_args("+varName+","+valueName+")"; |
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} |
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@Override
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public Codes build(StatementContext context) {
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context.trace(this.toString()+".build"); |
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BaseCodes args = (BaseCodes) context.getCodeBuilder().args(); |
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args.add(context.getCodeBuilder().identifier((String) ((Code.Constant)context.getCode(varName)).value()));
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args.add(context.getCode(valueName)); |
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return args;
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} |
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} |
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public BasicGrammarFactory() {
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super("Basic", true); |
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} |
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@Override
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public Grammar create(Object... parameters) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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if (this.grammar == null) { |
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Grammar theGrammar = manager.createGrammar(this.getName());
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theGrammar.addStatement(this.createArrayStatement(theGrammar));
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theGrammar.addStatement(this.createBlockStatement(theGrammar));
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theGrammar.addStatement(this.createCallStatement(theGrammar));
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theGrammar.addStatement(this.createCaseStatement(theGrammar));
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theGrammar.addStatement(this.createCastStatement(theGrammar));
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theGrammar.addStatement(this.createDateStatement(theGrammar));
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theGrammar.addStatement(this.createDictStatement(theGrammar));
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theGrammar.addStatement(this.createExtractStatement(theGrammar));
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theGrammar.addStatement(this.createForeachStatement(theGrammar));
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theGrammar.addStatement(this.createFunctionStatement(theGrammar));
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theGrammar.addStatement(this.createIfStatement(theGrammar));
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theGrammar.addStatement(this.createLambdaStatement(theGrammar));
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theGrammar.addStatement(this.createLet1Statement(theGrammar));
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theGrammar.addStatement(this.createLet2Statement(theGrammar));
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theGrammar.addStatement(this.createSetattr1Statement(theGrammar));
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theGrammar.addStatement(this.createSetattr2Statement(theGrammar));
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theGrammar.addStatement(this.createVarStatement(theGrammar));
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theGrammar.addStatement(this.createListStatement(theGrammar));
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theGrammar.addStatement(this.createMatchStatement(theGrammar));
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theGrammar.addStatement(this.createPassStatement(theGrammar));
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theGrammar.addStatement(this.createReturnStatement(theGrammar));
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theGrammar.addStatement(this.createTimeStatement(theGrammar));
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theGrammar.addStatement(this.createTimestampStatement(theGrammar));
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theGrammar.addStatement(this.createWhileStatement(theGrammar));
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theGrammar.addStatement(this.create$ConstantStatement(theGrammar)); |
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theGrammar.addStatement(this.createBreakStatement(theGrammar));
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this.grammar = theGrammar;
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} |
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return grammar;
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} |
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private Statement createBlockStatement(Grammar theGrammar) { |
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Statement stmt;
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theGrammar.addReservedWord("BEGIN");
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theGrammar.addReservedWord("EXCEPT");
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theGrammar.addReservedWord("END");
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stmt = theGrammar.createStatement("BLOCK");
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stmt.addRule(stmt.require_any_token("BEGIN"));
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stmt.addRule(stmt.require_expressions(";").capture_as("VALUES")); |
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stmt.addRule(stmt.optional_any_token("EXCEPT")
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.addRuleOnTrue(stmt.require_expressions(";").capture_as("EXCEPT")) |
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); |
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stmt.addRule(stmt.require_any_token("END"));
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stmt.builder(new BeginStatementBuilder("VALUES", "EXCEPT")); |
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return stmt;
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} |
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private Statement create$ConstantStatement(Grammar theGrammar) { |
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Statement stmt;
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stmt = theGrammar.createStatement("$Constant");
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stmt.addRule(stmt.require_any_token("<%"));
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stmt.addRule(stmt.require_any_token("="));
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stmt.addRule(stmt.require_expression().capture_as("VALUE"));
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stmt.addRule(stmt.require_any_token("%>"));
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stmt.code( |
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ExpressionBuilder.FUNCTION_$HOSTEXPRESSION,
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stmt.args_names("VALUE")
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); |
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return stmt;
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} |
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private Statement createIfStatement(Grammar theGrammar) { |
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Statement stmt;
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theGrammar.addReservedWord("IF");
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theGrammar.addReservedWord("THEN");
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theGrammar.addReservedWord("ELSE");
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theGrammar.addReservedWord("END");
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stmt = theGrammar.createStatement("IF");
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stmt.addRule(stmt.require_any_token("IF"));
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stmt.addRule(stmt.require_expression().capture_as("CONDITION"));
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stmt.addRule(stmt.require_any_token("THEN", ":")); |
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stmt.addRule(stmt.require_expressions(";").capture_as("ONTRUE")); |
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stmt.addRule(stmt.optional_any_token("ELSE")
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.addRuleOnTrue(stmt.optional_any_token(":"))
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.addRuleOnTrue(stmt.require_expressions(";").capture_as("ONFALSE")) |
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); |
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stmt.addRule(stmt.require_any_token("END"));
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stmt.addRule(stmt.optional_any_token("IF"));
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stmt.code( |
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ExpressionBuilder.FUNCTION_IF, |
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stmt.args_names("CONDITION", "ONTRUE", "ONFALSE") |
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); |
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return stmt;
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} |
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private Statement createWhileStatement(Grammar theGrammar) { |
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Statement stmt;
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theGrammar.addReservedWord("WHILE");
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theGrammar.addReservedWord("BEGIN");
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theGrammar.addReservedWord("END");
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theGrammar.addReservedWord("LOOP");
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stmt = theGrammar.createStatement("WHILE");
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stmt.addRule(stmt.require_any_token("WHILE"));
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stmt.addRule(stmt.require_expression().capture_as("CONDITION"));
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stmt.addRule(stmt.require_any_token("BEGIN", ":", "LOOP")); |
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stmt.addRule(stmt.require_expressions(";").capture_as("BODY")); |
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stmt.addRule(stmt.require_any_token("END"));
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stmt.addRule(stmt.optional_any_token("WHILE", "LOOP")); |
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stmt.code( |
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WhileFunction.NAME, |
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stmt.args_names("CONDITION", "BODY") |
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); |
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return stmt;
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} |
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private Statement createForeachStatement(Grammar theGrammar) { |
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Statement stmt;
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theGrammar.addReservedWord("FOR");
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theGrammar.addReservedWord("IN");
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// theGrammar.addReservedWord("BEGIN");
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theGrammar.addReservedWord("END");
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theGrammar.addReservedWord("LOOP");
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stmt = theGrammar.createStatement("FOREACH");
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stmt.addRule(stmt.require_any_token("FOR", "FOREACH")); |
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stmt.addRule(stmt.require_identifier().capture_as("VAR"));
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stmt.addRule(stmt.require_any_token("IN"));
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stmt.addRule(stmt.require_expression().capture_as("ITERABLE"));
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stmt.addRule(stmt.require_any_token("LOOP"));
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stmt.addRule(stmt.require_expressions(";").capture_as("BODY")); |
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stmt.addRule(stmt.require_any_token("END"));
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stmt.addRule(stmt.optional_any_token("LOOP"));
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stmt.code( |
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ForEachFunction.NAME, |
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stmt.args_names("VAR", "ITERABLE", "BODY") |
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); |
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return stmt;
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} |
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private Statement createCaseStatement(Grammar theGrammar) { |
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Statement stmt;
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theGrammar.addReservedWord("CASE");
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theGrammar.addReservedWord("WHEN");
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theGrammar.addReservedWord("THEN");
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theGrammar.addReservedWord("ELSE");
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theGrammar.addReservedWord("END");
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stmt = theGrammar.createStatement("CASE");
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stmt.addRule(stmt.require_any_token("CASE"));
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stmt.addRule( |
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stmt.repeat_until_any_tokens("END", "ELSE") |
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.addRule(stmt.require_any_token("WHEN"))
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.addRule(stmt.require_expression().capture_as("CONDITION#"))
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.addRule(stmt.require_any_token("THEN", ":")) |
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.addRule(stmt.require_expressions(";").capture_as("ONTRUE#")) |
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); |
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stmt.addRule(stmt.optional_any_token("ELSE")
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.addRuleOnTrue(stmt.optional_any_token(":"))
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.addRuleOnTrue(stmt.require_expressions(";").capture_as("ELSE")) |
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); |
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stmt.addRule(stmt.require_any_token("END"));
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stmt.addRule(stmt.optional_any_token("CASE"));
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stmt.code( |
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CaseFunction.NAME, |
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stmt.args_names("CONDITION#", "ONTRUE#", "ELSE") |
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); |
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return stmt;
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} |
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private Statement createFunctionStatement(Grammar theGrammar) { |
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Statement stmt;
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theGrammar.addReservedWord("CREATE");
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theGrammar.addReservedWord("FUNCTION");
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theGrammar.addReservedWord("PROCEDURE");
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theGrammar.addReservedWord("AS");
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theGrammar.addReservedWord("BEGIN");
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theGrammar.addReservedWord("END");
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theGrammar.addReservedWord("$$"); // ???? Asi van las funciones en PostgreSQL |
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stmt = theGrammar.createStatement("USERFUNCTION");
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stmt.addRule(stmt.require_any_token("CREATE"));
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stmt.addRule(stmt.optional_any_token("OR")
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.addRuleOnTrue(stmt.optional_any_token("REPLACE"))
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); |
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stmt.addRule(stmt.optional_any_token("FUNCTION", "PROCEDURE")); |
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stmt.addRule(stmt.require_identifier().capture_as("FUNCTION_NAME"));
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stmt.addRule(stmt.optional_any_token("("));
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stmt.addRule(stmt.optional_identifiers(",").capture_as("PARAMETERS")); |
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stmt.addRule(stmt.optional_any_token(")"));
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stmt.addRule(stmt.require_any_token("AS"));
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stmt.addRule(stmt.optional_any_token("$$", "BEGIN") |
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.addRuleOnTrue(stmt.require_expressions(";").capture_as("BODY")) |
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.addRuleOnTrue(stmt.require_any_token("$$", "END")) |
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.addRuleOnTrue(stmt.optional_any_token("FUNCTION", "PROCEDURE")) |
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.addRuleOnFalse(stmt.optional_literal_string().capture_as("SCRIPT_PATH")
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.addRuleOnTrue(stmt.require_any_token(","))
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.addRuleOnTrue(stmt.require_literal_string().capture_as("SCRIPT_FUNCTION"))
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.addRuleOnTrue(stmt.optional_any_token("LANGUAGE")
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.addRuleOnTrue(stmt.require_literal_string().capture_as("LANGUAGE"))
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) |
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) |
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); |
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stmt.code( |
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CreateFnFunction.NAME, |
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stmt.fixed_args_names("FUNCTION_NAME", "PARAMETERS", "BODY", "SCRIPT_PATH", "SCRIPT_FUNCTION", "LANGUAGE") |
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); |
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return stmt;
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} |
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|
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private Statement createLambdaStatement(Grammar theGrammar) { |
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Statement stmt;
|
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|
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theGrammar.addReservedWord("LAMBDA");
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|
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stmt = theGrammar.createStatement("LAMBDA");
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stmt.addRule(stmt.require_any_token("LAMBDA"));
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stmt.addRule(stmt.optional_identifiers(",").capture_as("PARAMETERS")); |
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stmt.addRule(stmt.require_any_token(":"));
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stmt.addRule(stmt.require_expression().capture_as("BODY"));
|
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stmt.code( |
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CreateFnFunction.NAME, |
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stmt.fixed_args_names("PARAMETERS", "BODY") |
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); |
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return stmt;
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} |
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|
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private Statement createReturnStatement(Grammar theGrammar) { |
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Statement stmt;
|
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|
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theGrammar.addReservedWord("RETURN");
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|
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stmt = theGrammar.createStatement("RETURN");
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stmt.addRule(stmt.require_any_token("RETURN"));
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stmt.addRule(stmt.optional_expression().capture_as("VALUES"));
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stmt.code( |
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ReturnFunction.NAME, |
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stmt.args_expand("VALUES")
|
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); |
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return stmt;
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} |
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|
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private Statement createBreakStatement(Grammar theGrammar) { |
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Statement stmt;
|
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|
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theGrammar.addReservedWord("BREAK");
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|
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stmt = theGrammar.createStatement("BREAK");
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stmt.addRule(stmt.require_any_token("BREAK"));
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stmt.code( |
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BreakFunction.NAME, |
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stmt.args_expand() |
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); |
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return stmt;
|
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} |
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|
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private Statement createVarStatement(Grammar theGrammar) { |
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Statement stmt;
|
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|
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theGrammar.addReservedWord("VAR");
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|
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stmt = theGrammar.createStatement("VAR");
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stmt.addRule(stmt.require_any_token("VAR"));
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stmt.addRule(stmt.require_identifier().capture_as("NAME"));
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stmt.addRule(stmt.optional_any_token("DEFAULT")
|
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.addRuleOnTrue(stmt.require_expression().capture_as("VALUE"))
|
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.addRuleOnFalse(stmt.set_expression("VALUE", null)) |
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); |
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stmt.code( |
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"VAR",
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new VarArgsBuilder("NAME", "VALUE") |
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); |
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return stmt;
|
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} |
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|
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private Statement createLet1Statement(Grammar theGrammar) { |
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Statement stmt;
|
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|
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theGrammar.addReservedWord("LET");
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theGrammar.addReservedWord("SET");
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theGrammar.addReservedWord("TO");
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|
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stmt = theGrammar.createStatement("LET");
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stmt.addRule(stmt.require_any_token("LET", "SET")); |
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stmt.addRule(stmt.require_identifier().capture_as("NAME"));
|
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stmt.addRule(stmt.optional_any_token("=", "TO")); |
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stmt.addRule(stmt.require_expression().capture_as("VALUE"));
|
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stmt.code( |
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ExpressionBuilder.FUNCTION_LET, |
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stmt.args_names("NAME", "VALUE") |
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); |
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return stmt;
|
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} |
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|
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private Statement createLet2Statement(Grammar theGrammar) { |
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Statement stmt;
|
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|
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stmt = theGrammar.createStatement("LET2");
|
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stmt.addRule(stmt.require_identifier().capture_as("NAME"));
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stmt.addRule(stmt.require_any_token(":="));
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stmt.addRule(stmt.require_expression().capture_as("VALUE"));
|
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stmt.code( |
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ExpressionBuilder.FUNCTION_LET, |
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stmt.args_names("NAME", "VALUE") |
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); |
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return stmt;
|
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} |
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|
453 |
private Statement createSetattr1Statement(Grammar theGrammar) { |
454 |
Statement stmt;
|
455 |
|
456 |
stmt = theGrammar.createStatement("SETATTR");
|
457 |
stmt.addRule(stmt.require_identifier().capture_as("NAME"));
|
458 |
stmt.addRule(stmt.require_any_token("["));
|
459 |
stmt.addRule(stmt.require_expression().capture_as("ATTRNAME"));
|
460 |
stmt.addRule(stmt.require_any_token("]"));
|
461 |
stmt.addRule(stmt.require_any_token(":="));
|
462 |
stmt.addRule(stmt.require_expression().capture_as("VALUE"));
|
463 |
stmt.code( |
464 |
ExpressionBuilder.FUNCTION_SETATTR, |
465 |
stmt.args_names("NAME", "ATTRNAME", "VALUE") |
466 |
); |
467 |
return stmt;
|
468 |
} |
469 |
|
470 |
private Statement createSetattr2Statement(Grammar theGrammar) { |
471 |
Statement stmt;
|
472 |
|
473 |
stmt = theGrammar.createStatement("SETATTR");
|
474 |
stmt.addRule(stmt.require_identifier().capture_as("NAME"));
|
475 |
stmt.addRule(stmt.require_any_token("."));
|
476 |
stmt.addRule(stmt.require_identifier().capture_as("ATTRNAME"));
|
477 |
stmt.addRule(stmt.require_any_token(":="));
|
478 |
stmt.addRule(stmt.require_expression().capture_as("VALUE"));
|
479 |
stmt.code( |
480 |
ExpressionBuilder.FUNCTION_SETATTR, |
481 |
stmt.args_names("NAME", "ATTRNAME", "VALUE") |
482 |
); |
483 |
return stmt;
|
484 |
} |
485 |
|
486 |
private Statement createArrayStatement(Grammar theGrammar) { |
487 |
Statement stmt;
|
488 |
|
489 |
theGrammar.addReservedWord("ARRAY");
|
490 |
|
491 |
stmt = theGrammar.createStatement("ARRAY");
|
492 |
stmt.addRule(stmt.require_any_token("ARRAY"));
|
493 |
stmt.addRule(stmt.require_any_token("["));
|
494 |
stmt.addRule(stmt.require_expressions(",").capture_as("VALUES")); |
495 |
stmt.addRule(stmt.require_any_token("]"));
|
496 |
stmt.code( |
497 |
FUNCTION_LIST, |
498 |
stmt.args_expand("VALUES")
|
499 |
); |
500 |
return stmt;
|
501 |
} |
502 |
|
503 |
private Statement createCastStatement(Grammar theGrammar) { |
504 |
Statement stmt;
|
505 |
|
506 |
theGrammar.addReservedWord("CAST");
|
507 |
theGrammar.addReservedWord("AS");
|
508 |
|
509 |
stmt = theGrammar.createStatement("CAST");
|
510 |
stmt.addRule(stmt.require_any_token("CAST"));
|
511 |
stmt.addRule(stmt.optional_any_token("(")
|
512 |
.addRuleOnTrue(stmt.require_expression(false).capture_as("VALUE")) |
513 |
.addRuleOnTrue(stmt.require_any_token("AS"))
|
514 |
.addRuleOnTrue(stmt.require_identifier().capture_as("TYPE"))
|
515 |
.addRuleOnTrue(stmt.require_any_token(")"))
|
516 |
.addRuleOnFalse(stmt.require_expression(false).capture_as("VALUE")) |
517 |
.addRuleOnFalse(stmt.require_any_token("AS"))
|
518 |
.addRuleOnFalse(stmt.require_identifier().capture_as("TYPE"))
|
519 |
); |
520 |
stmt.code( |
521 |
FUNCTION_CAST, |
522 |
stmt.args_names("VALUE", "TYPE") |
523 |
); |
524 |
return stmt;
|
525 |
} |
526 |
|
527 |
private Statement createMatchStatement(Grammar theGrammar) { |
528 |
Statement stmt;
|
529 |
|
530 |
theGrammar.addReservedWord("MATCH");
|
531 |
|
532 |
stmt = theGrammar.createStatement("MATCH");
|
533 |
stmt.addRule(stmt.require_any_token("MATCH"));
|
534 |
stmt.addRule(stmt.optional_any_token("(")
|
535 |
.addRuleOnTrue(stmt.require_expression().capture_as("VALUE"))
|
536 |
.addRuleOnTrue(stmt.require_any_token(","))
|
537 |
.addRuleOnTrue(stmt.require_expression().capture_as("PATTERN"))
|
538 |
.addRuleOnTrue(stmt.require_any_token(")"))
|
539 |
.addRuleOnFalse(stmt.require_expression().capture_as("VALUE"))
|
540 |
.addRuleOnFalse(stmt.optional_any_token(","))
|
541 |
.addRuleOnFalse(stmt.require_expression().capture_as("PATTERN"))
|
542 |
); |
543 |
stmt.code( |
544 |
OPERATOR_REGEXP, |
545 |
stmt.args_names("VALUE", "PATTERN") |
546 |
); |
547 |
return stmt;
|
548 |
} |
549 |
|
550 |
private Statement createDateStatement(Grammar theGrammar) { |
551 |
Statement stmt;
|
552 |
|
553 |
stmt = theGrammar.createStatement("DATE");
|
554 |
stmt.addRule(stmt.require_any_token("DATE"));
|
555 |
stmt.addRule(stmt.require_expression().capture_as("EXP"));
|
556 |
stmt.code(FUNCTION_DATE, stmt.args_names("EXP"));
|
557 |
return stmt;
|
558 |
} |
559 |
|
560 |
private Statement createTimeStatement(Grammar theGrammar) { |
561 |
Statement stmt;
|
562 |
|
563 |
stmt = theGrammar.createStatement("TIME");
|
564 |
stmt.addRule(stmt.require_any_token("TIME"));
|
565 |
stmt.addRule(stmt.require_expression().capture_as("EXP"));
|
566 |
stmt.code(FUNCTION_TIME, stmt.args_names("EXP"));
|
567 |
return stmt;
|
568 |
} |
569 |
|
570 |
private Statement createTimestampStatement(Grammar theGrammar) { |
571 |
Statement stmt;
|
572 |
|
573 |
stmt = theGrammar.createStatement("TIMESTAMP");
|
574 |
stmt.addRule(stmt.require_any_token("TIMESTAMP"));
|
575 |
stmt.addRule(stmt.require_expression().capture_as("EXP"));
|
576 |
stmt.code(FUNCTION_TIMESTAMP, stmt.args_names("EXP"));
|
577 |
return stmt;
|
578 |
} |
579 |
|
580 |
private Statement createExtractStatement(Grammar theGrammar) { |
581 |
Statement stmt;
|
582 |
|
583 |
stmt = theGrammar.createStatement("EXTRACT");
|
584 |
stmt.addRule(stmt.require_any_token("EXTRACT"));
|
585 |
stmt.addRule(stmt.require_any_token("("));
|
586 |
stmt.addRule(stmt.require_any_token("CENTURY", "DAY", "DECADE", |
587 |
"DOW", "DOY", "HOUR", "ISODOW", "ISOYEAR", "MICROSECONDS", |
588 |
"MILLENNIUM", "MILLUSECONDS", "MINUTE", "MONTH", "QUARTER", |
589 |
"SECOND", "WEEK", "YEAR").capture_as("FIELD")); |
590 |
stmt.addRule(stmt.require_any_token("FROM"));
|
591 |
stmt.addRule(stmt.require_expression().capture_as("EXP"));
|
592 |
stmt.addRule(stmt.require_any_token(")"));
|
593 |
stmt.code(FUNCTION_EXTRACT, stmt.args_names("FIELD", "EXP")); |
594 |
return stmt;
|
595 |
} |
596 |
|
597 |
private Statement createDictStatement(Grammar theGrammar) { |
598 |
Statement stmt;
|
599 |
|
600 |
stmt = theGrammar.createStatement("DICT");
|
601 |
stmt.addRule(stmt.require_any_token("{"));
|
602 |
stmt.addRule(stmt.optional_any_token("}") // Diccionario vacio. |
603 |
.addRuleOnFalse(stmt.repeat() |
604 |
.addRule(stmt.optional_literal_string().capture_as("NAME#")
|
605 |
.addRuleOnFalse(stmt.require_identifier().capture_as("NAME#"))
|
606 |
) |
607 |
.addRule(stmt.require_any_token(":", "=>")) |
608 |
.addRule(stmt.require_expression().capture_as("VALUE#"))
|
609 |
.addRule(stmt.optional_any_token(",")
|
610 |
.addRuleOnFalse(stmt.break_loop()) |
611 |
) |
612 |
) |
613 |
.addRuleOnFalse(stmt.require_any_token("}"))
|
614 |
); |
615 |
stmt.code(FUNCTION_DICT, new DictArgsBuilder("NAME#", "VALUE#")); |
616 |
return stmt;
|
617 |
} |
618 |
|
619 |
private Statement createListStatement(Grammar theGrammar) { |
620 |
Statement stmt;
|
621 |
|
622 |
stmt = theGrammar.createStatement("LIST");
|
623 |
stmt.addRule(stmt.require_any_token("["));
|
624 |
stmt.addRule(stmt.optional_any_token("]") // lista vacia. |
625 |
.addRuleOnFalse(stmt.repeat() |
626 |
.addRule(stmt.require_expression().capture_as("VALUE#"))
|
627 |
.addRule(stmt.optional_any_token(",")
|
628 |
.addRuleOnFalse(stmt.break_loop()) |
629 |
) |
630 |
) |
631 |
.addRuleOnFalse(stmt.require_any_token("]"))
|
632 |
); |
633 |
stmt.code(FUNCTION_LIST, stmt.args_names("VALUE#"));
|
634 |
return stmt;
|
635 |
} |
636 |
|
637 |
private Statement createPassStatement(Grammar theGrammar) { |
638 |
Statement stmt;
|
639 |
|
640 |
theGrammar.addReservedWord("PASS");
|
641 |
|
642 |
stmt = theGrammar.createStatement("PASS");
|
643 |
stmt.addRule(stmt.require_any_token("PASS"));
|
644 |
stmt.addRule(stmt.optional_any_token("(")
|
645 |
.addRuleOnTrue(stmt.require_expressions(",").capture_as("ARGS#")) |
646 |
.addRuleOnTrue(stmt.require_any_token(")"))
|
647 |
); |
648 |
stmt.code( |
649 |
"PASS",
|
650 |
stmt.args_names("ARGS#")
|
651 |
); |
652 |
return stmt;
|
653 |
} |
654 |
|
655 |
private Statement createCallStatement(Grammar theGrammar) { |
656 |
Statement stmt;
|
657 |
|
658 |
theGrammar.addReservedWord("CALL");
|
659 |
|
660 |
stmt = theGrammar.createStatement("CALL");
|
661 |
stmt.addRule(stmt.require_any_token("CALL"));
|
662 |
stmt.addRule(stmt.require_identifier().capture_as("CALLABLE"));
|
663 |
stmt.addRule(stmt.optional_any_token("(")
|
664 |
.addRuleOnTrue(stmt.require_expressions(",").capture_as("ARGS#")) |
665 |
.addRuleOnTrue(stmt.require_any_token(")"))
|
666 |
); |
667 |
stmt.code( |
668 |
"CALL",
|
669 |
stmt.args_names("CALLABLE", "ARGS#") |
670 |
); |
671 |
return stmt;
|
672 |
} |
673 |
|
674 |
} |