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4 | <meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type">
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5 | <title>The Greenstone Librarian Interface - Help Pages</title>
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6 | </head>
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7 | <body bgcolor="#E0F0E0">
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8 | <table width="100%" cellspacing="0" cellpadding="5" bgcolor="#B0D0B0" border="2">
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9 | <tr>
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10 | <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>7.6.1: 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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11 | </tr>
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12 | </table>
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13 |
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14 | The section explains how to define a partition filter.
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15 | <p></p>
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16 | <table bgcolor="#B0D0B0" width="480" cellpadding="2" border="2" align="center">
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17 | <tr>
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18 | <td align="center"><font size="4" face="Verdana"><strong>
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19 | Contents
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20 | </strong></font></td>
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21 | </tr>
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22 | <tr>
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23 | <td>
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24 | <table width="100%" cellpadding="2" border="0" bgcolor="#FFFFFF">
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25 |
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26 | <tr>
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27 | <td colspan="3"><a href="#simple">Simple Instructions:</a></td>
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28 | </tr>
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29 |
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30 | <tr>
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31 | <td colspan="1"> </td><td colspan="2">
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32 | Add a filter
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33 | </td>
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34 | </tr>
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35 |
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36 | <tr>
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37 | <td colspan="1"> </td><td colspan="2">
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38 | Remove a filter
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39 | </td>
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40 | </tr>
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41 |
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42 | <tr>
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43 | <td colspan="1"> </td><td colspan="2">
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44 | Update a filter
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45 | </td>
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46 | </tr>
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47 |
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48 |
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49 | </table>
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50 | </td>
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51 | </tr>
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52 | </table>
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53 | <p></p>
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54 |
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55 | <p></p>
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56 | <img width="20" src="gatherer_small.gif" height="20"><a name="simple"> Simple Instructions:</a>
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57 | <p style="text-align:justify"></p>
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58 | Filters allows you to group together into a subcollection all documents in an
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59 | index for which a metadata value matches a given pattern.
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60 | <p></p>
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61 | To create a filter, click the "Define Filters" tab and enter a name for the
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62 | new filter into the "Name the subcollection filter" field. Next choose a
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63 | document attribute to match against, either a metadata element or the name of
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64 | the file in question. Enter a regular expression to use during the matching.
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65 | You can toggle between "Including" documents that match the filter, or
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66 | "Excluding" them. Finally, you can specify any of the standard PERL regular
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67 | expression flags to use when matching (e.g. "i" for case-insensitive matching).
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68 | Finally, click "Add Filter" to add the filter to the "Defined Subcollection Filters"
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69 | list.
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70 | <p></p>
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71 | To remove a filter, select it from the list and click "Remove Filter".
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72 | <p></p>
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73 | To alter a filter, select it from the list, change any of the values that
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74 | appear in the editing controls and click "Replace Filter" to commit the changes.
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75 | </body>
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76 | </html>
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