Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.util.Pair;

public class Main {
    private static Pair<Boolean, String> evaluateAsConstantExpression(String parameter) {
        // String constant?
        // TODO: Error, this matches something like "hello" + "how are you?" which is not a constant
        // (but can't be evaluated by getValueFromEntities() anyway).
        String[] quoteSet = new String[] { "\"", "'" }; //$NON-NLS-1$ //$NON-NLS-2$
        for (String quote : quoteSet)
            if (parameter.startsWith(quote) && parameter.endsWith(quote))
                return new Pair<Boolean, String>(true, parameter.substring(1, parameter.length() - 1));

        // Numeric constant?
        if (parameter.matches("^(-)?[0-9.]+$")) //$NON-NLS-1$
            return new Pair<Boolean, String>(true, parameter);

        // Boolean constant?
        if (parameter.equalsIgnoreCase("true") || parameter.equalsIgnoreCase("false")) //$NON-NLS-1$ //$NON-NLS-2$
            return new Pair<Boolean, String>(true, parameter);

        // Special constants?
        if (parameter.equalsIgnoreCase("nowait") || parameter.equalsIgnoreCase("status") //$NON-NLS-1$//$NON-NLS-2$
                || parameter.equalsIgnoreCase("keep"))
            return new Pair<Boolean, String>(true, parameter);

        // Not a constant value, apparently.
        return new Pair<Boolean, String>(false, parameter);
    }
}