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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>Calligra filters status: CSV FILTER</title>
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<A NAME="START"> </A>
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<center>
<h1>
Calligra filters status: <i>CSV - Comma Separated Values</i>
</h1>
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<hr NOSHADE SIZE=2 WIDTH="70%">
<font size="-1"><b>
<A HREF="#import">Import</A> |
<A HREF="#export">Export</A>
</b></font>
<BR><BR><BR>
<center><a NAME="import"></a></center>
<A HREF="#START"><font size="-1"><b>Up</b></font></A>
<center>
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<td>
<table BORDER=0 CELLPADDING=2 BGCOLOR="#FFFFFF" WIDTH="100%">
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<td COLSPAN="2">
<center><b><i><font size="+1">
<BR>
Import CSV for KSpread<BR>
<BR>
</font></i></b></center>
</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP WIDTH="1%" NOWRAP><b><font size="+1">Last update</font></b></td>
<td>9 jan 2001</td>
</tr>
<tr BGCOLOR="#CCCCFF">
<td VALIGN=TOP><b><font size="+1">Features</font></b></td>
<td>- Can import CVS documents</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP><b><font size="+1">Todo</font></b></td>
<td>
- Automatically adjust the columns width to their contents.<BR>
Will be difficult, as we don't know the font used...<BR>
Solution ? Set a default font _in_ the filter, and use it to <BR>
compute the width...
</td>
</tr>
<tr BGCOLOR="#CCCCFF">
<td VALIGN=TOP><b><font size="+1">History</font></b></td>
<td>-</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP><b><font size="+1">Authors</font></b></td>
<td>
<A HREF="mailto:faure@kde.org">David Faure</A>
<A HREF="mailto:trobin@kde.org">Werner Trobin</A>
</td>
</tr>
<tr BGCOLOR="#CCCCFF">
<td VALIGN=TOP><b><font size="+1">Links</font></b></td>
<td>-</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP><b><font size="+1">Progress report </font></b></td>
<td>
<H2>Design</H2>
<PRE>
The CSV import filter uses a hand-made state machine to parse the CSV file.
This allows to handle quoted fields (such as those containing the CSV delimiter),
as well as the double-quote character itself (which then appears twice, and
always in a quoted field).
Just to make sure about the vocabulary, I call a quoted field a field
starting with " and finishing with ".
Let's try to draw the graph of the state machine using ascii-art.
DEL or EOL
/--\
| |
| v "
/--[START]-------->[QUOTED_FIELD] (**)
other| ^ ^ | ^
(*) | | | DEL or | " | " (*)
| | | EOL v | other
| | \----[MAYBE_END_OF_QUOTED_FIELD]--------> Error
| |
| | DEL or
| | EOL
v |
[NORMAL_FIELD] (**)
DEL : CSV delimiter (depends on locale !). Often comma, sometimes semicolon.
EOL : End Of Line.
(*) : added to the current field
(**) : implicit loop on itself, labeled "other (*)"
Ugly isn't it ? :) One can't be good in drawings AND in hacking :)
That's all. For the rest, see csvfilter.cc
David Faure <faure@kde.org>, 1999
</PRE>
</td>
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</table>
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<A HREF="#START"><font size="-1"><b>Up</b></font></A>
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<a NAME="export"></a>
</center>
<A HREF="#START"><font size="-1"><b>Up</b></font></A>
<center>
<table BORDER=0 CELLSPACING=0 BGCOLOR="#000000" WIDTH="100%">
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<table BORDER=0 CELLPADDING=2 BGCOLOR="#FFFFFF" WIDTH="100%">
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<td COLSPAN="2">
<center><b><i><font size="+1">
<BR>Export KSpread to CSV<BR><BR>
</font></i></b></center>
</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP WIDTH="1%" NOWRAP><b><font size="+1">Last update</font></b></td>
<td>?</td>
</tr>
<tr BGCOLOR="#CCCCFF">
<td VALIGN=TOP><b><font size="+1">Features</font></b></td>
<td>?</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP><b><font size="+1">Todo</font></b></td>
<td>?</td>
</tr>
<tr BGCOLOR="#CCCCFF">
<td VALIGN=TOP><b><font size="+1">History</font></b></td>
<td>-</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP><b><font size="+1">Authors</font></b></td>
<td>
<A HREF="mailto:faure@kde.org">David Faure</A>
<A HREF="mailto:trobin@kde.org">Werner Trobin</A>
</td>
</tr>
<tr BGCOLOR="#CCCCFF">
<td VALIGN=TOP><b><font size="+1">Links</font></b></td>
<td>-</td>
</tr>
<tr BGCOLOR="#EEEEFF">
<td VALIGN=TOP><b><font size="+1">Progress report </font></b></td>
<td>---</td>
</tr>
</table>
</td>
</tr>
</table>
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