/// <summary>
/// generates a bunch of items to be searched for within a larger text
/// </summary>
/// <param name="numberOfItems"></param>
/// <returns></returns>
public static List<string> GenerateTestDictionary(int numberOfItems)
{
List<string> rv = new List<string>();
StringGenerator generator = new StringGenerator();
for (int i = 0; i < numberOfItems; i++)
{
var line = generator.GenerateAlpha(10, 50);
rv.Add(line);
}
return rv;
}
/// <summary>
/// Generates a list of test strings, the number of items being specified by numberOfLines.
/// percentMatch is the number of words in the dictionary per line, as dictated by pseudorandom distribution
/// </summary>
/// <param name="dictionary"></param>
/// <param name="percentMatch"></param>
/// <param name="numberOfLines"></param>
/// <returns></returns>
public static List<string> GenerateSearchText(List<string> dictionary, int percentMatch, int numberOfLines)
{
List<string> rv = new List<string>();
//define the flag to write out a dictionary item
Random rnd = new Random();
int dictSize = dictionary.Count;
StringGenerator generator = new StringGenerator();
int matchLines = 0;
Func<string> generateLine = () =>
{
//get random number from 0 to 100
var rndVal = rnd.Next(0, 100);
//run random filter
if (rndVal > percentMatch)
return string.Empty;
matchLines++;
//get random keyword and return it
rndVal = rnd.Next(0, dictSize - 1);
var keyWord = dictionary[rndVal];
var fakeLinePrefix = generator.GenerateAlpha(100, 1000);
var fakeLineSuffix = generator.GenerateAlpha(100, 1000);
return fakeLinePrefix + keyWord + fakeLineSuffix; //stick the value in the middle of the fake line
};
for (int i = 0; i < numberOfLines; i++)
{
rv.Add(generateLine());
}
Debug.WriteLine("{0} match lines in {1} total", matchLines, numberOfLines);
return rv;
}
public static List<string> GenerateDecorationySearchText(List<string> dictionary, int percentMatch, int numberOfLines)
{
List<string> rv = new List<string>();
//define the flag to write out a dictionary item
Random rnd = new Random();
int dictSize = dictionary.Count;
StringGenerator generator = new StringGenerator();
Func<string> generateLine = () =>
{
string line = string.Empty;
dictionary.ForEach(word =>
{
var fakeLinePrefix = generator.GenerateAlpha(10, 50);
var fakeLineSuffix = generator.GenerateAlpha(10, 50);
line += fakeLinePrefix;
//get random number from 0 to 100
var rndVal = rnd.Next(0, 100);
//run random filter
if (rndVal < percentMatch)
{
line += word;
}
line += fakeLineSuffix;
});
return line;
};
for (int i = 0; i < numberOfLines; i++)
{
rv.Add(generateLine());
}
return rv;
}