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| 2 | <head>
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| 3 | <META http-equiv="Content-Type" content="text/html; charset=UTF-8">
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| 4 | <title>The Greenstone Librarian Interface - Help Pages</title>
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| 5 | </head>
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| 6 | <body bgcolor="#E0F0E0">
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| 7 | <table width="100%" cellspacing="0" cellpadding="5" bgcolor="#B0D0B0" border="2">
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| 8 | <tr>
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| 9 | <td width="15%" align="center"><img width="45" src="../gatherer_medium.gif" height="45"></td><td width="*" align="center"><a name="definefilters"><font size="5" face="Verdana"><strong>5.6.1: Define Filters</strong></font></a></td><td width="15%" align="center"><img width="45" src="../gatherer_medium.gif" height="45"></td>
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| 10 | </tr>
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| 11 | </table>
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| 12 |
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| 13 | The section explains how to define a partition filter.
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| 14 | <p></p>
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| 15 | <table bgcolor="#B0D0B0" width="480" cellpadding="2" border="2" align="center">
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| 16 | <tr>
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| 17 | <td align="center"><font size="4" face="Verdana"><strong>
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| 18 | Contents
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| 19 | </strong></font></td>
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| 20 | </tr>
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| 21 | <tr>
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| 22 | <td>
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| 23 | <table width="100%" cellpadding="2" border="0" bgcolor="#FFFFFF">
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| 24 |
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| 25 | <tr>
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| 26 | <td colspan="3"><a href="#simple">Simple Instructions:</a></td>
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| 27 | </tr>
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| 28 |
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| 29 | <tr>
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| 30 | <td colspan="1"> </td><td colspan="2">
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| 31 | Add a filter
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| 32 | </td>
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| 33 | </tr>
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| 34 |
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| 35 | <tr>
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| 36 | <td colspan="1"> </td><td colspan="2">
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| 37 | Remove a filter
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| 38 | </td>
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| 39 | </tr>
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| 40 |
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| 41 | <tr>
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| 42 | <td colspan="1"> </td><td colspan="2">
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| 43 | Update a filter
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| 44 | </td>
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| 45 | </tr>
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| 46 |
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| 47 |
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| 48 | </table>
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| 49 | </td>
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| 50 | </tr>
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| 51 | </table>
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| 52 | <p></p>
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| 53 |
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| 54 | <p></p>
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| 55 | <img width="20" src="../gatherer_small.gif" height="20"><a name="simple"> Simple Instructions:</a>
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| 56 | <p style="text-align:justify"></p>
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| 57 | Filters allows you to group together into a subcollection all documents in an
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| 58 | index for which a metadata value matches a given pattern.
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| 59 | <p></p>
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| 60 | To create a filter, click the "Define Filters" tab and enter a name for the
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| 61 | new filter into the "Name the subcollection filter" field. Next choose a
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| 62 | document attribute to match against, either a metadata element or the name of
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| 63 | the file in question. Enter a regular expression to use during the matching.
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| 64 | You can toggle between "Including" documents that match the filter, or
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| 65 | "Excluding" them. Finally, you can specify any of the standard PERL regular
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| 66 | expression flags to use when matching (e.g. "i" for case-insensitive matching).
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| 67 | Finally, click "Add Filter" to add the filter to the "Defined Subcollection Filters"
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| 68 | list.
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| 69 | <p></p>
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| 70 | To remove a filter, select it from the list and click "Remove Filter".
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| 71 | <p></p>
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| 72 | To alter a filter, select it from the list, change any of the values that
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| 73 | appear in the editing controls and click "Replace Filter" to commit the changes.
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| 74 | </body>
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| 75 | </html>
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