regex failing

Collapse
This topic is closed.
X
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • noon
    #1

    regex failing

    I'm runing an xmlHttpRequest to get the site's source code and then
    applying the regex

    xhr.responseTex t.split(/<body[^>]*>((?:.|\n)*)< \/body>/i)[1]

    Works for google.com. Fails on yahoo.com and imdb.com pages (ex:
    http://imdb.com/title/tt0482606/ )

    Can someone help me tweak this, or give insight as to why its
    failing? I can't spot it
    Tags: None
    • Erwin Moller
      #2
      Re: regex failing

      noon schreef:
      I'm runing an xmlHttpRequest to get the site's source code and then
      applying the regex
      >
      xhr.responseTex t.split(/<body[^>]*>((?:.|\n)*)< \/body>/i)[1]
      >
      Works for google.com. Fails on yahoo.com and imdb.com pages (ex:
      http://imdb.com/title/tt0482606/ )
      >
      Can someone help me tweak this, or give insight as to why its
      failing? I can't spot it
      Maybe...
      You didn't mention what it is you WANT your regex to do.
      And you didn't say what 'failing' is. An error? An unexpected result?

      Regards,
      Erwin Moller

        Comment

        • noon
          #3
          Re: regex failing

          That information might help huh. I want it to strip everything
          inbetween body tags. The error was that I was either receiving nothing
          or receiving the entire html including the head tags etc. I have since
          seem to have got it working with this code:

          xhr.responseTex t.split(/<body[^>]*>((.|\n|\r|\u2 028|\u2029)*)<\/body>/
          gi)[1];

          Though improvement suggestions are welcome

            Comment

            • Thomas 'PointedEars' Lahn
              #4
              Re: regex failing

              noon wrote:
              That information might help huh. I want it to strip everything
              inbetween body tags. The error was that I was either receiving nothing
              or receiving the entire html including the head tags etc. I have since
              seem to have got it working with this code:
              >
              xhr.responseTex t.split(/<body[^>]*>((.|\n|\r|\u2 028|\u2029)*)<\/body>/
              gi)[1];
              With

              foo<body>...</body>bar

              this would give you

              ...

              But you wanted to *strip* everything *in between*, _not_ split.
              Though improvement suggestions are welcome
              ... = xhr.responseTex t.match(/<body(|\s+[^>]*)>((.|\s)*)<\/body>/i)[1];

              is largely equivalent to your code in this case and more efficient.
              However, IMHO that is still _not_ stripping everything in between but
              *matching* everything in between, which is probably what you meant to say.

              Note that (X)HTML is a context-sensitive language which cannot be parsed
              with one regular expression (defining a regular language) alone. In your
              case it should work because a Valid (X)HTML document MUST NOT have more
              than one `body' element.


              PointedEars
              --
              var bugRiddenCrashP ronePieceOfJunk = (
              navigator.userA gent.indexOf('M SIE 5') != -1
              && navigator.userA gent.indexOf('M ac') != -1
              ) // Plone, register_functi on.js:16

                Comment

                Previous template Next
                Working...