I need to compare strings based on what is matched by a regex. So I decided to create a regex to pick the parts of a string that I felt was necessary for consideration for equals. When using a regex and leaving parts of the string outside use “non capturing groups”. \u00a0 Like “(\\d+)(?:st|nd|rd|th)?” with will match a number and optional some postfix like “nd” as in 2nd.<\/p>\n
<\/p>\n
public static class StringEqualsRegex\r\n{\r\n \/\/\/ <summary>\r\n \/\/\/ Equals the strings by regex.\r\n \/\/\/ <\/summary>\r\n \/\/\/ <param name=\"s1\">The first string.<\/param>\r\n \/\/\/ <param name=\"s2\">The second string.<\/param>\r\n \/\/\/ <param name=\"regex\">The regex.<\/param>\r\n \/\/\/ <returns><c>true<\/c> if the captured strings of s1 and s2 match, <c>false<\/c> otherwise.<\/returns>\r\n public static bool EqualsByRegex(this string s1, string s2, Regex regex)\r\n { \r\n \/*Extension Method*\/\r\n return EqualStringByRegex(s1, s2, regex);\r\n }\r\n\r\n \/\/\/ <summary>\r\n \/\/\/ Equals the strings by regex.\r\n \/\/\/ <\/summary>\r\n \/\/\/ <param name=\"s1\">The first string.<\/param>\r\n \/\/\/ <param name=\"s2\">The second string.<\/param>\r\n \/\/\/ <param name=\"regex\">The regex.<\/param>\r\n \/\/\/ <returns><c>true<\/c> if the captured strings of s1 and s2 match, <c>false<\/c> otherwise.<\/returns>\r\n public static bool EqualStringByRegex(string s1, string s2, Regex regex)\r\n {\r\n\r\n string capturedS1 = GetCapturedString(s1, regex);\r\n string capturedS2 = GetCapturedString(s2, regex);\r\n\r\n return (capturedS1 != null && capturedS2 != null) && \r\n capturedS1.Equals(capturedS2);\r\n }\r\n\r\n private static string GetCapturedString(string s, Regex regex)\r\n {\r\n dynamic match = regex.Match(s);\r\n\r\n if ((match.Success))\r\n {\r\n var sb = new StringBuilder();\r\n for (var i = 1; i <= match.Groups.Count; i++)\r\n {\r\n foreach (Capture capture in match.Groups[i].Captures)\r\n {\r\n sb.Append(capture.Value);\r\n }\r\n }\r\n return sb.ToString();\r\n }\r\n\r\n return null;\r\n }\r\n\r\n} \r\n<\/pre>\n.<\/p>\n
[wpdm_file id=1]<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
I need to compare strings based on what is matched by a regex. So I decided to create a regex to pick the parts of a string that I felt was necessary for consideration for equals. When using a regex and leaving parts of the string outside use “non capturing groups”. \u00a0 Like “(\\d+)(?:st|nd|rd|th)?” with […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[3],"tags":[7],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p61yPs-6s","_links":{"self":[{"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/posts\/400"}],"collection":[{"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/comments?post=400"}],"version-history":[{"count":17,"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/posts\/400\/revisions"}],"predecessor-version":[{"id":419,"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/posts\/400\/revisions\/419"}],"wp:attachment":[{"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/media?parent=400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/categories?post=400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/floris.briolas.nl\/floris\/wp-json\/wp\/v2\/tags?post=400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}