JavaScript regex matches HTML

Regular expressions	< (\s*?) [^>]*>.*?</\1>|<.*? />
The
does not match	Abc|123|

Regular expressions	^[^<> ' ~!/@\#}$%:;) (_^{&*=| ') +]+$
The	This is a test
does not match

Regular expressions	<! --. *?-->
The	<! --<h1>this text has been removed</h1> --> | <! --Yada-->
does not match	<h1>this text has not been removed</h1>

Regular expressions	(\[(\w+) \s* (([\w]*) = (' |")? ( [a-za-z0-9|:| \/|=|-|.| \?| &] *) (\5)?) *\]) ([a-za-z0-9|:| \/|=|-|.| \?| &|\s]+) (\[\/\2\])
The	[link url="http://www.domain.com/file.extension?getvar=value&secondvar=value"] Link[/li
does not match	[A]whatever[/b] | [a var1=something var2=somethingelse]whatever[/a] | [A]whatever[a]

Regular expressions	Href=[\ "\"] (http:\/\/|\.\/|\/)? \w+ (\.\w+) * (\/\w+ (\.\w+)?) * (\/|\?\w*=\w* (&\w*=\w*) *)? [\"\‘]
The	href= "www.yahoo.com" | href= "http://localhost/blah/" | href= "Eek"
does not match	href= "" | Href=eek | Href= "bad Example"

Regular expressions	" ([^"] (?:\ \.| [^\\"] *) "
The	" This is a \"string\". "
does not match	" This is a \"string\".

Regular expressions	(? I:on (Blur|c (Hange|lick) |dblclick|focus|keypress| ( Key|mouse) (Down|up) | (un) load|mouse (move|o (ut|ver)) |reset|s (Elect|ubmit))
The	onclick | onsubmit | onmouseover
does not match	Click | Onandon | Mickeymouse

Regular expressions	(? s)/\*.*\*/
The	/* .................... */ | /* Imagine lots of lines here */
does not match	*/Malformed OPENING tag * * | /* Malformed closing tag/*

Regular expressions	< (\s*?) [^>]*>.*?</\1>|<.*? />
The
does not match	Abc|123|

Regular expressions	\xa9
The	?
does not match	Anything

Regular expressions	SRC[^>] *[^/]. (?: jpg|bmp|gif) (?:\ "|\ ')
The	Src=&quot, .... /images/image.jpg" | src="http://domain.com/images/image.jpg" | Src= ' d:\w
does not match	Src=&quot, .... /images/image.tif" | src="cid:value"

Regular expressions	/\*[\d\d]*?\*/
The	/* My comment * * | /* My Multiline comment * * | /* My nested comment */
does not match	*/Anything here/* | Anything between 2 seperate comments | \* *\

Regular expressions	<[a-za-z]+ (\s+[a-za-z]+\s*=\s* ("[^"]*) "| ([^ ']*) ') *\s*/>
The
does not match	|

JavaScript regex matches HTML