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Sven Dowideit > AnyData-0.10_52TRIAL > AnyData::Format::HTMLtable



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Module Version: 0.05   Source   Latest Release: AnyData-0.11


HTMLtable - tied hash and DBI/SQL access to HTML tables


 use AnyData;
 my $table = adHash( 'HTMLtable', $filename );
 while (my $row = each %$table) {
    print $row->{name},"\n" if $row->{country} =~ /us|mx|ca/;
 # ... other tied hash operations


 use DBI
 my $dbh = DBI->connect('dbi:AnyData:');
 $dbh->func('table1','HTMLtable', $filename,'ad_catalog');
 my $hits = $dbh->selectall_arrayref( qq{
     SELECT name FROM table1 WHERE country = 'us'
 # ... other DBI/SQL operations


This module allows one to treat the data contained in an HTML table as a tied hash (using or as a DBI/SQL accessible database (using Both the tiedhash and DBI interfaces allow one to read, modify, and create HTML tables from perl data or from local or remote files.

The module requires that CGI, HTML::Parser and HTML::TableExtract are installed.

When reading the HTML table, this module is essentially just a pass through to Matt Sisk's excellent HTML::TableExtract module.

If no flags are specified in the adTie() or ad_catalog() calls, then TableExtract is called with depth=0 and count=0, in other words it finds the first row of the first table and treats that as the column names for the entire table. If a flag for 'cols' (column names) is specified in the adTie() or ad_catalog() calls, that list of column names is passed to TableExtract as a headers parameter. If the user specifies flags for headers, depth, or count, those are passed directly to TableExtract.

When exporting to an HTMLtable, you may pass flags to specify properties of the whole table (table_flags), the top row containing the column names (top_row_flags), and the data rows (data_row_flags). These flags follow the syntax of table constructors, e.g.:

 print adExport( $table, 'HTMLtable', {
     table_flags    => {Border=>3,bgColor=>'blue'};
     top_row_flags  => {bgColor=>'red'};
     data_row_flags => {valign='top'};

 The table_flags will default to {Border=>1,bgColor=>'white'} if none
 are specified.

 The top_row_flags will default to {bgColor=>'#c0c0c0'} if none are 

 The data_row_flags will be empty if none are specified.

 In other words, if no flags are specified the table will print out with
 a border of 1, the column headings in gray, and the data rows in white.

 CAUTION: This module will *not* preserve anything in the html file except
 the selected table so if your file contains more than the selected table,
 you will want to use adTie() or $dbh->func(...,'ad_import') to read the 
table and then adExport() or $dbh->func(...,'ad_export') to write
 the table to a different file.  When using the HTMLtable format, this is the
 only way to preserve changes to the data, the adTie() command will *not*
 write to a file.


copyright 2000, Jeff Zucker <> all rights reserved

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