Thread: [Htmlparser-user] Parsing quoted strings seems to be broken in 1.6

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htmlparser-user

[Htmlparser-user] Parsing quoted strings seems to be broken in 1.6

From: sebb <se...@gm...> - 2007-01-08 00:40:53

The sample script:

<HTML>
  <body>
  <script>
  fred = "<img src='a.gif'></img>"
  </script>
  </body>
</HTML>

generates the following output from parser.cmd:

Tag (0[0,0],6[0,6]): HTML
  Txt (6[0,6],10[1,2]): \n
  Tag (10[1,2],16[1,8]): body
    Txt (16[1,8],20[2,2]): \n
    Tag (20[2,2],28[2,10]): script
      Txt (28[2,10],57[3,27]): \n  fred = "<img src='a.gif'>
      End (57[3,27],57[3,27]): /script
    End (57[3,27],63[3,33]): /img
    Txt (63[3,33],68[4,2]): "\n
    End (68[4,2],77[4,11]): /script
    Txt (77[4,11],81[5,2]): \n
    End (81[5,2],88[5,9]): /body
  Txt (88[5,9],90[6,0]): \n
  End (90[6,0],97[6,7]): /HTML
Txt (97[6,7],101[8,0]): \n\n

It looks like the closing tag is being recognised - though the opening
tag is not.

Is this a bug, or have I misunderstood something?

Re: [Htmlparser-user] Parsing quoted strings seems to be broken in 1.6

From: Derrick O. <Der...@Ro...> - 2007-01-08 01:53:29

For parsing bad script like this you probably want to set the static 
boolean value org.htmlparser.scanners.ScriptScanner.STRICT to false. See 
the explanation in the ScriptScanner.java file.

sebb wrote:

>The sample script:
>
><HTML>
>  <body>
>  <script>
>  fred = "<img src='a.gif'></img>"
>  </script>
>  </body>
></HTML>
>
>generates the following output from parser.cmd:
>
>Tag (0[0,0],6[0,6]): HTML
>  Txt (6[0,6],10[1,2]): \n
>  Tag (10[1,2],16[1,8]): body
>    Txt (16[1,8],20[2,2]): \n
>    Tag (20[2,2],28[2,10]): script
>      Txt (28[2,10],57[3,27]): \n  fred = "<img src='a.gif'>
>      End (57[3,27],57[3,27]): /script
>    End (57[3,27],63[3,33]): /img
>    Txt (63[3,33],68[4,2]): "\n
>    End (68[4,2],77[4,11]): /script
>    Txt (77[4,11],81[5,2]): \n
>    End (81[5,2],88[5,9]): /body
>  Txt (88[5,9],90[6,0]): \n
>  End (90[6,0],97[6,7]): /HTML
>Txt (97[6,7],101[8,0]): \n\n
>
>It looks like the closing tag is being recognised - though the opening
>tag is not.
>
>Is this a bug, or have I misunderstood something?
>
>-------------------------------------------------------------------------
>Take Surveys. Earn Cash. Influence the Future of IT
>Join SourceForge.net's Techsay panel and you'll get the chance to share your
>opinions on IT & business topics through brief surveys - and earn cash
>http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
>_______________________________________________
>Htmlparser-user mailing list
>Htm...@li...
>https://lists.sourceforge.net/lists/listinfo/htmlparser-user
>
>  
>

Re: [Htmlparser-user] Parsing quoted strings seems to be broken in 1.6

From: sebb <se...@gm...> - 2007-01-08 11:21:09

Thanks for the quick reply. I'll give it a try.

However, I'm not sure why the script example is bad.

It is not enclosed in "<!--" and "// -->", but AIUI those are only
needed as a work-round for older browsers that did not understand the
<script> tag.


On 08/01/07, Derrick Oswald <Der...@ro...> wrote:
>
> For parsing bad script like this you probably want to set the static
> boolean value org.htmlparser.scanners.ScriptScanner.STRICT to false. See
> the explanation in the ScriptScanner.java file.
>
> sebb wrote:
>
> >The sample script:
> >
> ><HTML>
> >  <body>
> >  <script>
> >  fred = "<img src='a.gif'></img>"
> >  </script>
> >  </body>
> ></HTML>
> >
> >generates the following output from parser.cmd:
> >
> >Tag (0[0,0],6[0,6]): HTML
> >  Txt (6[0,6],10[1,2]): \n
> >  Tag (10[1,2],16[1,8]): body
> >    Txt (16[1,8],20[2,2]): \n
> >    Tag (20[2,2],28[2,10]): script
> >      Txt (28[2,10],57[3,27]): \n  fred = "<img src='a.gif'>
> >      End (57[3,27],57[3,27]): /script
> >    End (57[3,27],63[3,33]): /img
> >    Txt (63[3,33],68[4,2]): "\n
> >    End (68[4,2],77[4,11]): /script
> >    Txt (77[4,11],81[5,2]): \n
> >    End (81[5,2],88[5,9]): /body
> >  Txt (88[5,9],90[6,0]): \n
> >  End (90[6,0],97[6,7]): /HTML
> >Txt (97[6,7],101[8,0]): \n\n
> >
> >It looks like the closing tag is being recognised - though the opening
> >tag is not.
> >
> >Is this a bug, or have I misunderstood something?
> >
> >-------------------------------------------------------------------------
> >Take Surveys. Earn Cash. Influence the Future of IT
> >Join SourceForge.net's Techsay panel and you'll get the chance to share your
> >opinions on IT & business topics through brief surveys - and earn cash
> >http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> >_______________________________________________
> >Htmlparser-user mailing list
> >Htm...@li...
> >https://lists.sourceforge.net/lists/listinfo/htmlparser-user
> >
> >
> >
>
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys - and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Htmlparser-user mailing list
> Htm...@li...
> https://lists.sourceforge.net/lists/listinfo/htmlparser-user
>

Re: [Htmlparser-user] Parsing quoted strings seems to be broken in 1.6

From: sebb <se...@gm...> - 2007-01-08 14:58:28

Sorry, my bad - I've now read the document referenced in the scanner
source, and I see that "</" acts as the terminator unless suitably
hidden.

S.
On 08/01/07, sebb <se...@gm...> wrote:
> Thanks for the quick reply. I'll give it a try.
>
> However, I'm not sure why the script example is bad.
>
> It is not enclosed in "<!--" and "// -->", but AIUI those are only
> needed as a work-round for older browsers that did not understand the
> <script> tag.
>
>
> On 08/01/07, Derrick Oswald <Der...@ro...> wrote:
> >
> > For parsing bad script like this you probably want to set the static
> > boolean value org.htmlparser.scanners.ScriptScanner.STRICT to false. See
> > the explanation in the ScriptScanner.java file.
> >
> > sebb wrote:
> >
> > >The sample script:
> > >
> > ><HTML>
> > >  <body>
> > >  <script>
> > >  fred = "<img src='a.gif'></img>"
> > >  </script>
> > >  </body>
> > ></HTML>
> > >
> > >generates the following output from parser.cmd:
> > >
> > >Tag (0[0,0],6[0,6]): HTML
> > >  Txt (6[0,6],10[1,2]): \n
> > >  Tag (10[1,2],16[1,8]): body
> > >    Txt (16[1,8],20[2,2]): \n
> > >    Tag (20[2,2],28[2,10]): script
> > >      Txt (28[2,10],57[3,27]): \n  fred = "<img src='a.gif'>
> > >      End (57[3,27],57[3,27]): /script
> > >    End (57[3,27],63[3,33]): /img
> > >    Txt (63[3,33],68[4,2]): "\n
> > >    End (68[4,2],77[4,11]): /script
> > >    Txt (77[4,11],81[5,2]): \n
> > >    End (81[5,2],88[5,9]): /body
> > >  Txt (88[5,9],90[6,0]): \n
> > >  End (90[6,0],97[6,7]): /HTML
> > >Txt (97[6,7],101[8,0]): \n\n
> > >
> > >It looks like the closing tag is being recognised - though the opening
> > >tag is not.
> > >
> > >Is this a bug, or have I misunderstood something?
> > >
> > >-------------------------------------------------------------------------
> > >Take Surveys. Earn Cash. Influence the Future of IT
> > >Join SourceForge.net's Techsay panel and you'll get the chance to share your
> > >opinions on IT & business topics through brief surveys - and earn cash
> > >http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > >_______________________________________________
> > >Htmlparser-user mailing list
> > >Htm...@li...
> > >https://lists.sourceforge.net/lists/listinfo/htmlparser-user
> > >
> > >
> > >
> >
> >
> > -------------------------------------------------------------------------
> > Take Surveys. Earn Cash. Influence the Future of IT
> > Join SourceForge.net's Techsay panel and you'll get the chance to share your
> > opinions on IT & business topics through brief surveys - and earn cash
> > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > _______________________________________________
> > Htmlparser-user mailing list
> > Htm...@li...
> > https://lists.sourceforge.net/lists/listinfo/htmlparser-user
> >
>

Re: [Htmlparser-user] Parsing quoted strings seems to be broken in 1.6

From: sebb <se...@gm...> - 2007-01-10 18:13:01

FYI:

I've now tested the parser using

ScriptScanner.STRICT=false

and that solved the "problem".

Thanks again.

On 08/01/07, sebb <se...@gm...> wrote:
> Sorry, my bad - I've now read the document referenced in the scanner
> source, and I see that "</" acts as the terminator unless suitably
> hidden.
>
> S.
> On 08/01/07, sebb <se...@gm...> wrote:
> > Thanks for the quick reply. I'll give it a try.
> >
> > However, I'm not sure why the script example is bad.
> >
> > It is not enclosed in "<!--" and "// -->", but AIUI those are only
> > needed as a work-round for older browsers that did not understand the
> > <script> tag.
> >
> >
> > On 08/01/07, Derrick Oswald <Der...@ro...> wrote:
> > >
> > > For parsing bad script like this you probably want to set the static
> > > boolean value org.htmlparser.scanners.ScriptScanner.STRICT to false. See
> > > the explanation in the ScriptScanner.java file.
> > >
> > > sebb wrote:
> > >
> > > >The sample script:
> > > >
> > > ><HTML>
> > > >  <body>
> > > >  <script>
> > > >  fred = "<img src='a.gif'></img>"
> > > >  </script>
> > > >  </body>
> > > ></HTML>
> > > >
> > > >generates the following output from parser.cmd:
> > > >
> > > >Tag (0[0,0],6[0,6]): HTML
> > > >  Txt (6[0,6],10[1,2]): \n
> > > >  Tag (10[1,2],16[1,8]): body
> > > >    Txt (16[1,8],20[2,2]): \n
> > > >    Tag (20[2,2],28[2,10]): script
> > > >      Txt (28[2,10],57[3,27]): \n  fred = "<img src='a.gif'>
> > > >      End (57[3,27],57[3,27]): /script
> > > >    End (57[3,27],63[3,33]): /img
> > > >    Txt (63[3,33],68[4,2]): "\n
> > > >    End (68[4,2],77[4,11]): /script
> > > >    Txt (77[4,11],81[5,2]): \n
> > > >    End (81[5,2],88[5,9]): /body
> > > >  Txt (88[5,9],90[6,0]): \n
> > > >  End (90[6,0],97[6,7]): /HTML
> > > >Txt (97[6,7],101[8,0]): \n\n
> > > >
> > > >It looks like the closing tag is being recognised - though the opening
> > > >tag is not.
> > > >
> > > >Is this a bug, or have I misunderstood something?
> > > >
> > > >-------------------------------------------------------------------------
> > > >Take Surveys. Earn Cash. Influence the Future of IT
> > > >Join SourceForge.net's Techsay panel and you'll get the chance to share your
> > > >opinions on IT & business topics through brief surveys - and earn cash
> > > >http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > > >_______________________________________________
> > > >Htmlparser-user mailing list
> > > >Htm...@li...
> > > >https://lists.sourceforge.net/lists/listinfo/htmlparser-user
> > > >
> > > >
> > > >
> > >
> > >
> > > -------------------------------------------------------------------------
> > > Take Surveys. Earn Cash. Influence the Future of IT
> > > Join SourceForge.net's Techsay panel and you'll get the chance to share your
> > > opinions on IT & business topics through brief surveys - and earn cash
> > > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > > _______________________________________________
> > > Htmlparser-user mailing list
> > > Htm...@li...
> > > https://lists.sourceforge.net/lists/listinfo/htmlparser-user
> > >
> >
>