An warware: tsarin regex href html

Babban matsalar ita ce tsarin regex href html na iya zama da rudani sosai. Yana iya zama da wahala a fahimci abin da tsarin ke ƙoƙarin daidaitawa, kuma yana iya zama da wahala a san inda za a fara lokacin ƙoƙarin daidaita wani kirtani.

<a href="http://www.example.com">This is a link</a>

The regex pattern for this would be:

href="(.*?)"

Wannan layin lambar alamar HTML ce. Yana da budewa tag, mai biye da sifa na href. An saita ƙimar sifa href zuwa "http://www.example.com". Wannan yana biyo bayan rufewa > tag. Tsakanin budewa tag da rufewa tag shine rubutun "Wannan hanyar haɗi".

Menene Regex

Regex injin ne mai daidaita tsarin rubutu da ake amfani dashi a cikin HTML. Yana ba ku damar daidaita tsarin rubutu a cikin takarda. Ana iya amfani da wannan don gano takamaiman abubuwa ko abun ciki a cikin takarda.

Misalin Tsarin Regex

Misali na regex a cikin HTML zai kasance daidai da duk misalan kalmar "cat" a cikin takarda. Regex zai yi kama da haka:

cat

Wannan zai dace da kalmar "cat" a cikin takardar, da kuma kowane irin yanayin kalmar "cat".