ExtractFromEnd Method (ExtractionCursor, List(String), String)

Response ExtractFromEnd Method (ExtractionCursor, List String , String)

C# API

Extracts text from the response content starting from the end. Everything between (but not including) the specified list of after and before string objects will be returned.

Namespace: Facilita.Web
Assembly: clrWebBrowser (in clrWebBrowser.dll) Version: 9.5.8.37 (1.0.0.0)

Syntax

C++

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public virtual string ExtractFromEnd(
	ExtractionCursor cursor,
	List<string> after,
	string before
)

public virtual string ExtractFromEnd(
	ExtractionCursor cursor,
	List<string> after,
	string before
)

Parameters

cursor: Type: Facilita.Native ExtractionCursor
An ExtractionCursor object to store the success/failure of the action, and the index in the response at which the match was found.

after: Type: System.Collections.Generic List String
Each string in this List is searched for sequentially in the response content, and the returned string starts immediately before all the string objects have been matched in the content.

before: Type: System String
This text is searched for in the response content after the after text has been found, and the returned string ends immediately after this text occurs in the content.

Return Value

The extracted text, or an empty string if the extract failed.

Remarks

Supplying a List<string> of after values enables you to express more complicated extraction patterns. eggPlant Performance searches for the first string in the list, and searches for the second string after the position at which the first string was found. This continues until the final string is matched, after which the extracted response content is returned until before is matched. Information about the success/failure of this method will be stored in the ExtractionCursor object passed.

Examples

C++

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Response response = request.Send();
ExtractionCursor cursor = new ExtractionCursor();

// extract the selected value from the HTML text 
// <select> 
//    <option value="volvo">Volvo</option> 
//    <option value="saab">Saab</option> 
//    <option value="vw">VW</option> 
//    <option value="audi" selected>Audi</option> 
// </select>

List<string> after = new List<string>();
after.Add("</select>");
after.Add("selected");
after.Add("\"");

string extractedText = response.ExtractFromEnd(
                        cursor,
                        after,
                        "value=\"");

Response response = request.Send();
ExtractionCursor cursor = new ExtractionCursor();

// extract the selected value from the HTML text 
// <select> 
//    <option value="volvo">Volvo</option> 
//    <option value="saab">Saab</option> 
//    <option value="vw">VW</option> 
//    <option value="audi" selected>Audi</option> 
// </select>

List<string> after = new List<string>();
after.Add("</select>");
after.Add("selected");
after.Add("\"");

string extractedText = response.ExtractFromEnd(
                        cursor,
                        after,
                        "value=\"");