增加老版本 KJDWebService

StoreHub.KJDWebService/Commons/Helper/RegexHelper.cs

@@ -0,0 +1,81 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace NaiBa.Util.Helper
+{
+    public class RegexHelper
+    {
+        // <span\\sclass=\"rantings-num\".*?>(.+?)</span>
+
+        /// <summary>
+        /// 返回正则对象所有结果
+        /// </summary>
+        /// <param name="html"></param>
+        /// <param name="regex"></param>
+        /// <returns></returns>
+        public static MatchCollection GetMatchCollection(string html, string regex)
+        {
+            if (string.IsNullOrEmpty(html))
+            {
+                return null;
+            }
+            return Regex.Matches(html, regex, RegexOptions.IgnoreCase);
+        }
+
+        /// <summary>
+        /// 返回单个正则分析结果
+        /// </summary>
+        /// <param name="html"></param>
+        /// <param name="regex"></param>
+        /// <returns></returns>
+        public static string GetMatch(string html, string regex, int index = 0)
+        {
+            if (string.IsNullOrEmpty(html))
+            {
+                return string.Empty;
+            }
+            MatchCollection mc = Regex.Matches(html, regex, RegexOptions.IgnoreCase);
+            if (mc.Count > 0)
+            {
+                return mc[index].Groups[1].Value.ToString();
+            }
+            return string.Empty;
+        }
+
+        public static string GetMatchWithSingleLine(string html, string regex)
+        {
+            if (string.IsNullOrEmpty(html))
+            {
+                return string.Empty;
+            }
+            MatchCollection mc = Regex.Matches(html, regex, RegexOptions.IgnoreCase | RegexOptions.Singleline);
+            if (mc.Count > 0)
+            {
+                return mc[0].Groups[1].ToString();
+            }
+            return string.Empty;
+        }
+
+        public static bool IsNumber(string str)
+        {
+            Regex regex = new Regex(@"^[0-9\.]+$");
+            return regex.IsMatch(str);
+        }
+
+        public static bool IsAlphabet(string str)
+        {
+            Regex regex = new Regex(@"^[A-Za-z]+$");
+            return regex.IsMatch(str);
+        }
+
+        public static bool IsAlphabetOrNumber(string str)
+        {
+            Regex regex = new Regex(@"^[A-Za-z0-9]+$");
+            return regex.IsMatch(str);
+        }
+    }
+}