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/*******************************************************************************
* Copyright (c) 2009 Cloudsmith Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Cloudsmith Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.metadata.expression;
public interface IExpressionConstants {
String KEYWORD_ALL = "all"; //$NON-NLS-1$
String KEYWORD_BOOLEAN = "boolean"; //$NON-NLS-1$
String KEYWORD_CLASS = "class"; //$NON-NLS-1$
String KEYWORD_EXISTS = "exists"; //$NON-NLS-1$
String KEYWORD_FALSE = "false"; //$NON-NLS-1$
String KEYWORD_FILTER = "filter"; //$NON-NLS-1$
String KEYWORD_NULL = "null"; //$NON-NLS-1$
String KEYWORD_RANGE = "range"; //$NON-NLS-1$
String KEYWORD_TRUE = "true"; //$NON-NLS-1$
String KEYWORD_VERSION = "version"; //$NON-NLS-1$
String OPERATOR_AND = "&&"; //$NON-NLS-1$
String OPERATOR_AT = "[]"; //$NON-NLS-1$
String OPERATOR_EQUALS = "=="; //$NON-NLS-1$
String OPERATOR_GT = ">"; //$NON-NLS-1$
String OPERATOR_GT_EQUAL = ">="; //$NON-NLS-1$
String OPERATOR_LT = "<"; //$NON-NLS-1$
String OPERATOR_LT_EQUAL = "<="; //$NON-NLS-1$
String OPERATOR_MATCHES = "~="; //$NON-NLS-1$
String OPERATOR_MEMBER = "."; //$NON-NLS-1$
String OPERATOR_NOT = "!"; //$NON-NLS-1$
String OPERATOR_NOT_EQUALS = "!="; //$NON-NLS-1$
String OPERATOR_OR = "||"; //$NON-NLS-1$
String OPERATOR_PARAMETER = "$"; //$NON-NLS-1$
int PRIORITY_LITERAL = 1;
int PRIORITY_VARIABLE = 1;
int PRIORITY_FUNCTION = 2; // for extend query expressions
int PRIORITY_MEMBER = 3;
int PRIORITY_COLLECTION = 4;
int PRIORITY_NOT = 5;
int PRIORITY_BINARY = 6;
int PRIORITY_AND = 7;
int PRIORITY_OR = 8;
int PRIORITY_CONDITION = 9;
int PRIORITY_ASSIGNMENT = 10;
int PRIORITY_LAMBDA = 11;
int PRIORITY_COMMA = 12;
int PRIORITY_MAX = 20;
String VARIABLE_EVERYTHING = "everything"; //$NON-NLS-1$
String VARIABLE_THIS = "this"; //$NON-NLS-1$
}
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