From: Ralph Mason <ralph.mason@...>
Date: 2001-10-30T16:58:26+09:00
Subject: [ruby-talk:23817] Probably a simple one

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I am trying to extract the href from links in HTML, however the regular =
expression matcher doesn't appear to stop in the correct place.

I intend the regular expression to extrace the href that is enclosed in =
quotes and return that into $1.  However is seems to 'miss' the first =
set of quotes and a following one and finally stop on a third set.

Here is an example

s=3D"<A  href=3D\"l.htm\">xxx <IMG  src=3D\"images/la.gif\" =
width=3D4></A>"

s =3D~ /<.*A.*href *=3D *"(.*)".*>/   =3D> 0

$1   =3D>  "l.htm\">xxx <IMG  src=3D\"images/la.gif"


I am sure this is some error in my regular expression but I can't see =
what.

Thanks for any help
Ralph


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4616.200" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>I am trying to extract the href from =
links in HTML,=20
however the regular expression matcher doesn't appear to stop in the =
correct=20
place.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I intend the regular expression to =
extrace the href=20
that is enclosed in quotes and return that into $1.&nbsp; However is =
seems to=20
'miss' the first set of quotes and a following one and finally stop on a =
third=20
set.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT><FONT face=3DArial =
size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Here is an example</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>s=3D"&lt;A&nbsp; =
href=3D\"l.htm\"&gt;xxx &lt;IMG&nbsp;=20
src=3D\"images/la.gif\" width=3D4&gt;&lt;/A&gt;"</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>s =3D~ /&lt;.*A.*href *=3D =
*"(.*)".*&gt;/&nbsp;&nbsp;=20
=3D&gt; 0</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>$1&nbsp; &nbsp;=3D&gt;&nbsp; =
"l.htm\"&gt;xxx=20
&lt;IMG&nbsp; src=3D\"images/la.gif"</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I am sure this is some error in my =
regular=20
expression but I can't see what.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks for any help</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Ralph</FONT></DIV>
<DIV><FONT face=3DArial =
size=3D2></FONT>&nbsp;</DIV></FONT></DIV></BODY></HTML>

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