Subject: Re: [xsl] Selecting a particular node of an XML generated from Excel From: Michael Kay <mike@xxxxxxxxxxxx> Date: Tue, 08 Nov 2011 21:56:34 +0000 |
<xsl:for-each-group select="Cell" group-starting-with="*[@ss:Index]"> <xsl:variable name="start" select="(@ss:Index, 1)[1]"/> <xsl:for-each select="current-group()"> <Cell> <xsl:copy-of select="@*"/> <xsl:attribute name="ss:Index" select="$start + position() - 1"/> <xsl:copy-of select="node()"/> </Cell> </xsl:for-each> </xsl:for-each-group>
Michael Kay Saxonica
Hello,
I have a requirement where I am not sure of the best possible solution. The XML is generated from Excel. The problem is with missing rows which makes it difficult to select a particular node. Better I explain using this sample XML: [Pls ignore any case mismatch or spell mistakes]
<root> <Row> <Cell><Data>u1</Data></Cell> <Cell><Data>13.7 billion years ago</Data></Cell> <Cell><Data>Hydrogen and helium nuclei form in the first three minutes...</Data></Cell> <Cell ss:Index="107"><Data>107</Data></Cell> <Cell><Data>108</Data></Cell> <Cell><Data>109</Data></Cell> <Cell ss:Index="115"><Data>115</Data></Cell> <Cell><Data>116</Data></Cell> <Cell><Data>YES</Data></Cell> <!-- this is 117th row. But position() != 117 --> <Cell><Data>118</Data></Cell> </Row> <Row> <Cell><Data>u2</Data></Cell> <Cell><Data>2 million yearsgo</Data></Cell> <Cell><Data>blahlah</Data></Cell> <Cell><Data>1</Data></Cell> <Cell><Data>2</Data></Cell> <!-- SO MANY ROWS HERE --> <Cell><Data>YES</Data></Cell> <!-- THIS IS 117th row (Cell) i.e. position() = 117 --> <!--GAIN SO MANY ROWS HERE --> <Cell><Data>199</Data></Cell> <Cell><Data>200</Data></Cell> <!--ASSUME THIS IS 200TH ROW --> </Row> <Row> <Cell><Data>u3</Data></Cell> <Cell><Data>20th century</Data></Cell> <Cell><Data>blah blah</Data></Cell> <Cell ss:Index="117"><Data>NO</Data></Cell> <!-- THIS IS 117th row But position() != 117 --> <Cell ss:Index="199"><Data>119</Data></Cell> </Row> </root>
The excel to xml convertion results in empty excel columns getting stripped out in the resulting<Cell>. And so, the number of<Cell>'s vary for each<Row>. Now, if I want to select a particular<Cell>, say 117th<Cell>, I need to check any @ss:Index exist and if so, count() the number of the preceding-sibling's + the preceding @ss:Index value. So, for 117th Cell value,
(A) in Row 1, 2nd<Cell> of @ss:Indiex is 117th (B) in Row 2, position() = 117 is the required one (C) in Row 3, @ss:Indiex matching 117 (D) if none matching found, ignore
In my requirement, I need to select the N-th<Cell> value and check whether it is 'yes' or 'no' and then process. I am trying approach something like this (incomplete)
<xsl:for-each select="Cell"> ...
<xsl:variable name="last-index " select="preceding-sibling::Cell[@ss:Index][1]"/>
<!-- the ABOVE giver the last<Cell>'s ss:Index value.
Now I need to do something like count(preceding-sibling::Cell[@ss:Index][1]) - this may be wrong, but here is what I having trouble and need suggestions and best approach to solve this, to select N-th<Cell>, where N is known and can be 1 to X (=max possible value). Thanks in advance!.
Regards, karl
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