Re: HTML parsing
Re: HTML parsing
- Subject: Re: HTML parsing
- From: Reinhold Penner <email@hidden>
- Date: Mon, 2 Sep 2002 10:57:17 -1000
Check out perl and use regular expressions (that's how I've done it in
ChimeraKnight to extract the changed items text from a fairly
complicated table). Perl and regex do that very nicely. Alternatively
or in addition, there is a nice app called TestXSLT, which handles xml
files:
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Readme for TestXSLT
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>
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Written by Marc Liyanage <email@hidden>
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Description
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TestXSLT is a small tool for experimenting with XSLT in a convenient
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wayon Mac OS X. It uses the Sablotron XSL processor from
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http://www.gingerall.com/charlie/ga/xml/p_sab.xml and the Gnome
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libxslt processor from http://xmlsoft.org/XSLT/.
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The program takes an .xml and an .xsl file and either displays the
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result of the transformation in an output window or writes it to a
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file.
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You can either edit the XML and XSLT code directly in the program or
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you can load them from files on disk. Try drag and drop for the > latter.
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There are some examples included to get you started. The first is this
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Readme document that you are reading now. It was written and is
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maintained in XML. I have included two stylesheets which convert the
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XML input file into an RTF document and into an HTML page. Study the
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input, the stylesheets and the output files carefully to learn some
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basics. The stylesheets are commented.
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There are also two "bird" files which can be used as an example. Just
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open the two, click process and see what happens...
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Comments, feedback and feature suggestions are welcome to the address
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above.
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The latest version of this software is available at
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http://www.entropy.ch/software/macosx/
HTH, -Reinhold
On Monday, Sep 2, 2002, at 10:24 Pacific/Honolulu, Roger Howard wrote:
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I've begun to build fairly function-specific handlers for extracting
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values
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from discreet HTML tag attributes and I was wondering if anyone has or
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knows
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of anything a bit more generic and tested. I have two main tasks:
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1) Extract data in between a given start tag and an intelligently
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identified
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end tag. For instance, feed it the position of a <P> and it will
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return all
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the data between the <P> and the next </P>
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2) Extract values from specified tags. For instance, feed it a tag
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such as
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<meta name="FIELDNAME" content="Field data inserted here"> and return
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the
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labels and values in the name and content fields as a hash array like:
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(("name","FIELDNAME"),("content","Field data inserted here"))
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A bonus would be the top-down parsing of an entire HTML document into
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a tree
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of tags, attributes, and values.
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Given AppleScript's ignorance of HTML/XML structures, is there a
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better,
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more tested way of doing this? I'd hate to get into constant revisions
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of my
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handlers to suit additional data sets, so I'm hoping maybe there's
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instead
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either a tried-and-true Scripting Addition or a better way such as a
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shell
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tool I can trigger from AppleScript.
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Any suggestions?
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Best,
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>
Roger Howard
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| | >HTML parsing (From: Roger Howard <email@hidden>) |