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Robert Oschler
Guest
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 Posted: Sun Nov 23, 2003 2:01 am Post subject: Parse HTML documents without using TWebBrowser? |
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Is there a way to parse an HTML file, possibly from a string, without having
to get involved with TWebBrowser?
I'd like to use MSHTML directly to parse a string/file based HTML document
and have it return an instance of IHTMLDocument2. Is there a way to do
this?
thx
--
Robert Oschler
http://www.dog-images.com -- Devoted to providing free info on the health,
nutrition, and training of dogs.
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Remy Lebeau (TeamB)
Guest
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| Posted: Sun Nov 23, 2003 5:16 am Post subject: Re: Parse HTML documents without using TWebBrowser? |
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"Robert Oschler" <no_replies (AT) fake_email_address (DOT) invalid> wrote
| Quote: | Is there a way to parse an HTML file, possibly from a string,
without having to get involved with TWebBrowser?
|
Of course. Just use a third-party HTML parser, or parse the HTML manually.
The real question is, though - what exactly do you want to do with the HTML?
Are you just looking for a way to get data out of the HTML, or do you want
to display it, or what? Please be more specific.
| Quote: | I'd like to use MSHTML directly to parse a string/file based
HTML document and have it return an instance of IHTMLDocument2.
Is there a way to do this?
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You cannot instantiate IHTMLDocument2 directly, you can only obtain an
instance of it from an existing browser instance. MSHTML is a library of
browser controls, not standalone parsers.
Gambit
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Robert Oschler
Guest
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| Posted: Sun Nov 23, 2003 5:46 pm Post subject: Re: Parse HTML documents without using TWebBrowser? |
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"Remy Lebeau (TeamB)" <gambit47.no.spam (AT) no (DOT) spam.yahoo.com> wrote
| Quote: |
"Robert Oschler" <no_replies (AT) fake_email_address (DOT) invalid> wrote in message
news:3fc0148d$1 (AT) newsgroups (DOT) borland.com...
Is there a way to parse an HTML file, possibly from a string,
without having to get involved with TWebBrowser?
Of course. Just use a third-party HTML parser, or parse the HTML
manually.
The real question is, though - what exactly do you want to do with the
HTML?
Are you just looking for a way to get data out of the HTML, or do you want
to display it, or what? Please be more specific.
I'd like to use MSHTML directly to parse a string/file based
HTML document and have it return an instance of IHTMLDocument2.
Is there a way to do this?
You cannot instantiate IHTMLDocument2 directly, you can only obtain an
instance of it from an existing browser instance. MSHTML is a library of
browser controls, not standalone parsers.
Gambit
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Remy,
I wanted to be able to take advantage of the MSHTML interfaces
(IHTMLDocument2, IHTMLElement, etc.) by having HTML code parsed into an
IHTMLDocument2 instance. But I take it from you message that doing it
without using a browser instance is rough road at best.
thx
--
Robert Oschler
http://www.dog-images.com -- Devoted to providing free info on the health,
nutrition, and training of dogs.
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Eddie Shipman
Guest
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| Posted: Sun Nov 23, 2003 7:33 pm Post subject: Re: Parse HTML documents without using TWebBrowser? |
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In article <3fc0148d$1 (AT) newsgroups (DOT) borland.com>,
[email]no_replies (AT) fake_email_address (DOT) inva[/email]lid says...
| Quote: | Is there a way to parse an HTML file, possibly from a string, without having
to get involved with TWebBrowser?
I'd like to use MSHTML directly to parse a string/file based HTML document
and have it return an instance of IHTMLDocument2. Is there a way to do
this?
|
I'ts not that difficult. You can either use the IEParser from
www.ultimind.com/iedelphi or the extIEParser that is available from the
delphi-webbrowser yahoo group, (Must be a member to download)
http://groups/yahoo.com/group/delphi-webbrowser
Or you can take the HTML string and just slap it into an IHTMLDocument2
using the tip on Henri Fournier's WebBrowser faqs
http://members.shaw.ca/iedelphi/webbrowser.htm#advanced4
Of course you'd put it into your own IHTMLDocument2 object instead of
the webbrowsers.
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Remy Lebeau (TeamB)
Guest
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| Posted: Sun Nov 23, 2003 11:33 pm Post subject: Re: Parse HTML documents without using TWebBrowser? |
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"Robert Oschler" <no_replies (AT) fake_email_address (DOT) invalid> wrote
| Quote: | I wanted to be able to take advantage of the MSHTML
interfaces (IHTMLDocument2, IHTMLElement, etc.) by
having HTML code parsed into an IHTMLDocument2 instance.
But I take it from you message that doing it without using a
browser instance is rough road at best.
|
It is not just rough - it is impossible. MSHTML was not set up for what you
ask, it has to be used in the context of an actual browser only.
Gambit
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Remy Lebeau (TeamB)
Guest
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| Posted: Sun Nov 23, 2003 11:42 pm Post subject: Re: Parse HTML documents without using TWebBrowser? |
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"Eddie Shipman" <eshipman@yahoo!!!.com> wrote
That code is still using the browser's IHTMLDocument2, not a standalone
instance.
Alternatively, to load a document with content, you can use the
IPersistStreamInit interface, ie:
var
HTMLDocument: IHTMLDocument2;
PersistStream: IPersistStreamInit;
FStream: TStringStream;
begin
HTMLDocument := WebBrowser1.Document as IHTMLDocument2;
PersistStream := HTMLDocument as IPersistStreamInit;
FStream := TStringStream.Create(HTMLString);
try
PersistStream.Load(TStreamAdapter.Create(FStream, soReference));
...
finally
FStream.Free;
end;
end;
| Quote: | Of course you'd put it into your own IHTMLDocument2 object
instead of the webbrowsers.
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You cannot instantiate IHTMLDocument2 on its own.
Gambit
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eshipman
Guest
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| Posted: Mon Nov 24, 2003 2:07 pm Post subject: Re: Parse HTML documents without using TWebBrowser? |
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In article <3fc14504$1 (AT) newsgroups (DOT) borland.com>, "Remy Lebeau (TeamB)"
<gambit47.no.spam (AT) no (DOT) spam.yahoo.com> says...
| Quote: |
"Eddie Shipman" <eshipman@yahoo!!!.com> wrote in message
news:MPG.1a2ac77787e344e7989690 (AT) forums (DOT) borland.com...
Or you can take the HTML string and just slap it into an
IHTMLDocument2 using the tip on Henri Fournier's WebBrowser faqs
http://members.shaw.ca/iedelphi/webbrowser.htm#advanced4
That code is still using the browser's IHTMLDocument2, not a standalone
instance.
Did I not state that: |
"Of course you'd put it into your own IHTMLDocument2 object instead of
the webbrowsers"
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