Escape parts of string with a character in c# using regex -


i have string such this:

/one/two/three-four/five 6 seven/eight/nine ten eleven-twelve

i need first replace dashes spaces, , able escape grouping of words have space between them "#" symbol, above string should be:

/one/two/#three four#/#five 6 seven#/eight/#nine ten eleven twelve#

i have following extension method works great 2 words, how can make work number of words.

 public static string queryescape(this string str)     {         str = str.replace("-", " ");         return regex.replace(str, @"(\w*) (\w*)", new matchevaluator(escapematch));     }  private static string escapematch(match match)     {         return string.format("#{0}#", match.value);     }

so guess need proper regex takes account that

  1. there number of spaces
  2. there may or may not trailing slash ("/")
  3. takes account words grouped between slashes, exception of #2 above.
  4. dashes illegal , need replaced spaces

thank in advance support.

this should work you:

public static string queryescape(this string str) {     return regex.replace(str.replace("-", " "), @"[^/]*(\s[^/]*)+", "#$&#"); }

basically idea match spans of text isn't slash contains (white-)space character in it. add pound signs around match.


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