/*
* Problem 2 - http://www.pythonchallenge.com/pc/def/ocr.html
* It contains a long long string of data in the sourcecode and it's asking us to find rare characters.
* File is named "forP2.txt". So now we just need to extract the rare characters.
*
* Originally, what I used to do was step one char, read the letter, find all instances, output the total on screen and pop that character out.
* Wonder if I can do the same here...
*/
static void Problem2()
{
// Load file
FileHandling file = new FileHandling();
string text = (file.readFile("forP2.txt"));
// I was NOT aware that dictionaries were a thing in c#
// https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.dictionary-2?view=net-5.0#definition
Dictionary <char, int> openWith = new Dictionary <char, int>();
// https://www.codeproject.com/Questions/177626/count-number-of-characters-in-a-string
foreach (char letter in text)
{
if (!openWith.ContainsKey(letter))
{
openWith.Add(letter, 1);
}
else
{
openWith[letter]++;
}
}
// https://stackoverflow.com/questions/141088/what-is-the-best-way-to-iterate-over-a-dictionary
foreach (KeyValuePair <char, int> entry in openWith)
{
// do something with entry.Value or entry.Key
Console.WriteLine(entry.Key + " - " + entry.Value);
}
}
// http://www.pythonchallenge.com/pc/def/equality.html
/*
* Problem 3, here we go.
* Long string of text, "One small letter, surrounded by EXACTLY three big bodyguards"
* So basic regex.
* File is named "forP3.txt".
*
*/
static void Problem3()
{
// Load file
FileHandling file = new FileHandling();
string text = (file.readFile("forP3.txt"));
string search = "[^A-Z][A-Z]{3}[a-z]{1}[A-Z]{3}[^A-Z]";
RegexHandler handler = new RegexHandler();
// https://docs.microsoft.com/en-us/dotnet/api/system.text.regularexpressions.regex.matches?redirectedfrom=MSDN&view=net-5.0#overloads
foreach (Match match in handler.ReturnMatches(search, text))
{
Console.Write(match.Value.Substring(4, 1));
}
}