I'm migrating a legacy PHP application to .net, and one of the requirements is that the URLs stay exactly as before.
To generate friendly URLs the legacy application uses str_word_count
, I was wondering if there is a port of this function to C#?
I'm migrating a legacy PHP application to .net, and one of the requirements is that the URLs stay exactly as before.
To generate friendly URLs the legacy application uses str_word_count
, I was wondering if there is a port of this function to C#?
Okay here's my "bad C#" example (mimicking PHP in the mixed return type). It's a fairly trivial implementation leveraging .NET's Regular Expressions.
private enum WORD_FORMAT
{
NUMBER = 0,
ARRAY = 1,
ASSOC = 2
};
private static object str_word_count(string str, WORD_FORMAT format, string charlist)
{
string wordchars = string.Format("{0}{1}", "a-z", Regex.Escape(charlist));
var words = Regex.Matches(str, string.Format("[{0}]+(?:[{0}'\\-]+[{0}])?", wordchars), RegexOptions.Compiled | RegexOptions.IgnoreCase);
if (format == WORD_FORMAT.ASSOC)
{
var assoc = new Dictionary<int, string>(words.Count);
foreach (Match m in words)
assoc.Add(m.Index, m.Value);
return assoc;
}
else if (format == WORD_FORMAT.ARRAY)
{
return words.Cast<Match>().Select(m => m.Value).ToArray();
}
else // default to number.
{
return words.Count;
}
}
So the function will return a Dictionary<int,string>
if you choose ASSOC
, a string[]
if you choose ARRAY
and a simple int
if you choose NUMBER
.
An example (I copied PHP's example here
static void Main(string[] args)
{
string sentence = @"Hello fri3nd, you're
looking good today!";
var assoc = (Dictionary<int,string>)str_word_count(sentence, WORD_FORMAT.ASSOC, string.Empty);
var array = (string[])str_word_count(sentence, WORD_FORMAT.ARRAY, string.Empty);
var number = (int)str_word_count(sentence, WORD_FORMAT.NUMBER, string.Empty);
//test the plain array
Console.WriteLine("Array
(");
for (int i = 0; i < array.Length; i++)
Console.WriteLine("\t[{0}] => {1}", i, array[i]);
Console.WriteLine(")");
// test the associative
Console.WriteLine("Array
(");
foreach (var kvp in assoc)
Console.WriteLine("\t[{0}] => {1}", kvp.Key, kvp.Value);
Console.WriteLine(")");
//test the charlist:
array = (string[])str_word_count(sentence, WORD_FORMAT.ARRAY, "àáãç3");
Console.WriteLine("Array
(");
for (int i = 0; i < array.Length; i++)
Console.WriteLine("\t[{0}] => {1}", i, array[i]);
Console.WriteLine(")");
//test the number
Console.WriteLine("
{0}", number);
Console.Read();
}
But, I'd like to add a note here: Don't return objects. It works aok with PHP because it's not a strongly typed language. Really, you should be writing individual versions of the function to cater for each different format. Anyways, that should get you started :)
Output:
Array
(
[0] => Hello
[1] => fri
[2] => nd
[3] => you're
[4] => looking
[5] => good
[6] => today
)
Array
(
[0] => Hello
[6] => fri
[10] => nd
[14] => you're
[25] => looking
[42] => good
[47] => today
)
Array
(
[0] => Hello
[1] => fri3nd
[2] => you're
[3] => looking
[4] => good
[5] => today
)
7