c# - i want to capture h4 heading tags which have nothing or spaces in them? -

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मेरे पास निम्न पाठ है 

  obart 18 सितंबर 1 9 05 को। & Lt; h4 & gt; ( ^) & Lt; / h4 & gt; हमेशा जैक के रूप में जाना जाता है, वह द्वीपों में एसएएस पर राबोल पहुंचे थे & lt; h4 & gt; & Lt; / h4 & gt; & lt; i & gt; Montoro & lt; / i & gt; एक कैवर शुरू करने के लिए, और d = "k987" /> gt; एक आईडी = "के 9 88" / & gt; & lt; एक आईडी = "k989" / & gt; & lt; एक आईडी = "k990" /> gt; & lt; / पी & gt; & lt; h4 शैली = "टेक्स्ट-संरेखित: बायां;" & gt; यूजरेंट - न्यू गिनिया का टेरीटरी & lt; / h4 & gt; & lt; br / & gt; div वर्ग = "उद्धरण" & gt; Kieta के लिए सभी गति के साथ, कपड़े और बिस्तर लाने राशन प्रदान किए जाएंगे। & Lt; br / & gt; & lt; / div & gt; div: clas: काला; आकार: 1px "/ & gt; & lt; h4 शैली =" टेक्स्ट-संरेखित: बायां; "& gt; & lt; / h4 & gt; & lt; / div & gt; & Lt; / body & gt; & lt; / html & gt; & lt; h4 & gt; & lt; / h4 & gt;

इसमें मुरैया एच 4 शीर्षलेख हैं जिन्हें मैं उन पर कब्जा करना चाहता हूं जिनके पास उनके पास कुछ भी नहीं है या उनमें जगह नहीं है , क्या कोई मुझे इस पर मदद कर सकता है? मैंने हालांकि यह कोशिश की है 

  (& lt; h4। *? & Gt;) ([^ a-zA-Z0-9] +?) & Lt; / H4 & gt;

लेकिन यह काम करने के लिए नहीं दिखता

जब तक मैं आइकनाल से सहमत है कि बेहतर समाधान कुछ डोम के लिए होगा, एक रेगेक्स जो कुछ भी नहीं है या केवल उन स्थानों के साथ मिलान करने के लिए होगा जैसे कि ... 

  & lt; h4। *? & Gt; \\ s *? & Lt; / h4 & gt;

NB। मैं सी # में Regex पैटर्न को writting से परिचित नहीं हूँ, लेकिन मुझे लगता है कि यह सही होना चाहिए।


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