/// <summary>
/// Creates a new regular expression instance by copying the pattern and flags from another
/// RegExp instance.
/// </summary>
/// <param name="prototype"> The next object in the prototype chain. </param>
/// <param name="existingInstance"> The instance to copy the pattern and flags from. </param>
internal RegExpInstance(ObjectInstance prototype, RegExpInstance existingInstance)
: base(prototype)
{
if (existingInstance == null)
{
throw new ArgumentNullException("existingInstance");
}
this.m_value = existingInstance.m_value;
this.m_globalSearch = existingInstance.m_globalSearch;
// Initialize the javascript properties.
this.FastSetProperty("source", existingInstance.Source, PropertyAttributes.Sealed, false);
this.FastSetProperty("global", existingInstance.Global, PropertyAttributes.Sealed, false);
this.FastSetProperty("multiline", existingInstance.Multiline, PropertyAttributes.Sealed, false);
this.FastSetProperty("ignoreCase", existingInstance.IgnoreCase, PropertyAttributes.Sealed, false);
this.FastSetProperty("lastIndex", 0.0, PropertyAttributes.Writable, false);
}
/// <summary>
/// Returns a copy of this string with text replaced using a regular expression and a
/// replacement function.
/// </summary>
/// <param name="thisObject"></param>
/// <param name="regExp"> The regular expression to search for. </param>
/// <param name="replaceFunction"> A function that is called to produce the text to replace
/// for every successful match. </param>
/// <returns> A copy of this string with text replaced using a regular expression. </returns>
public static string Replace(string thisObject, RegExpInstance regExp, FunctionInstance replaceFunction)
{
return(regExp.Replace(thisObject, replaceFunction));
}
/// <summary>
/// Splits this string into an array of strings by separating the string into substrings.
/// </summary>
/// <param name="thisObject"></param>
/// <param name="regExp"> A regular expression that indicates where to split the string. </param>
/// <param name="limitArg"> The maximum number of array items to return. Defaults to unlimited. </param>
/// <returns> An array containing the split strings. </returns>
public static ArrayInstance Split(string thisObject, RegExpInstance regExp, [DefaultParameterValue(uint.MaxValue)] object limitArg)
{
var limit = JurassicHelper.GetTypedArgumentValue(regExp.Engine, limitArg, uint.MaxValue);
return(regExp.Split(thisObject, limit));
}
/// <summary>
/// Returns a copy of this string with text replaced using a regular expression.
/// </summary>
/// <param name="thisObject"></param>
/// <param name="regExp"> The regular expression to search for. </param>
/// <param name="replaceText"> A string containing the text to replace for every successful match. </param>
/// <returns> A copy of this string with text replaced using a regular expression. </returns>
public static string Replace(string thisObject, RegExpInstance regExp, string replaceText)
{
return(regExp.Replace(thisObject, replaceText));
}