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!read tabletheme
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The central piece of a wims server is a cgi program, usually in the name of
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The central piece of a wims server is a cgi program, usually in the name of
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wims.cgi. It takes all the http calls to the server, then does the following
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wims.cgi. It takes all the http calls to the server, then does the following
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work:
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work:
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<ol>
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<ol>
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<li>Call the module asked by the user, and process parameters and variables
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<li>Call the module asked by the user, and process parameters and variables
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Parameters of wims.cgi is a usual http $emph name=value$emphend pair, where the
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Parameters of wims.cgi is a usual http $emph name=value$emphend pair, where the
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$emph name$emphend field may be one of the following:
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$emph name$emphend field may be one of the following:
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<ul>
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<ul>
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<li><font color=green>cmd</font>: the value is the command of the call.
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<li><font color=green>cmd</font>: the value is the command of the call.
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Valid commands:
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Valid commands:
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$table_header
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<table border=2 cellspacing=2><tr><td>parameter string<td>meaning
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$table_tr<th>Parameter string<th>Meaning
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<tr><td>cmd=intro<td>get introduction page of the module
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$table_tr<td>cmd=intro<td>get introduction page of the module
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<tr><td>cmd=new<td>open new working session
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$table_tr<td>cmd=new<td>open new working session
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<tr><td>cmd=renew<td>restart working session
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$table_tr<td>cmd=renew<td>restart working session
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<tr><td>cmd=reply<td>send reply to the module
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$table_tr<td>cmd=reply<td>send reply to the module
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<tr><td>cmd=next<td>get next exercise (in a working session)
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$table_tr<td>cmd=next<td>get next exercise (in a working session)
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<tr><td>cmd=config<td>set preferences
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$table_tr<td>cmd=config<td>set preferences
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<tr><td>cmd=help<td>get contextual help
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$table_tr<td>cmd=help<td>get contextual help
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<tr><td>cmd=hint<td>get contextual hint
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$table_tr<td>cmd=hint<td>get contextual hint
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<tr><td>cmd=resume<td>resume work (e.g. after help)
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$table_tr<td>cmd=resume<td>resume work (e.g. after help)
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<tr><td>cmd=getins<td>get dynamic insertions: internal use<br>
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$table_tr<td>cmd=getins<td>get dynamic insertions: internal use<br>
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by the server. Not to be used by modules.
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by the server. Not to be used by modules.
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</table>
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</table></center>
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<li><font color=green>module</font>. the value is the name of the module
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<li><font color=green>module</font>. the value is the name of the module
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which the user wants to access. <br>
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which the user wants to access. <br>
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<li><font color=green>session</font>: the value is the number of the current
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<li><font color=green>session</font>: the value is the number of the current
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session of the user. <br>
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session of the user. <br>
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The session number is automatically generated by wims.cgi, and is usually
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The session number is automatically generated by wims.cgi, and is usually