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Applicabilities Expressions.

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package cdc.applic.expressions.literals;

/**
 * Possible escaping contexts.
 * 
 * Literals that must be escaped depend on that context.
 *
 * @author Damien Carbonne
 */
public enum EscapingContext {
    /**
     * The literal is:
     * 

     * a property name,
     * 
an alias name (reference),
     * 
a string item.
     * 
     * In that case, if the non escaped literal is a number or a boolean, it must be escaped.

     * If the literal contains some separation characters or patterns, it must be escaped.

     * Otherwise, it does not need to be escaped.
     */
    NAME,

    /**
     * The literal is:
     * 
     * an integer item,
     * 
a real item.
     * 
     * In that case, the literal MUST NOT be escaped.
     */
    NUMBER,

    /**
     * The literal is:
     * 
     * a boolean item.
     * 
     * In that case, the literal MUST NOT be escaped.
     */
    BOOLEAN
}