I was wondering if someone could, by the use of one
stylesheet, select the
values of the first,
the fourth and the seventh <ELEM_INFO_ITEM> children of <ELEM_INFO>
element. Note that the number
of <ELEM_INFO_ITEM> nodes is not predefined.In this example there are
exactly nine nodes, but
in other cases there might be only three or twelve etch, but
always number
that is multiple of
three.
If there are 12, do you want to select (1,4,7), or (1,4,7,10)? I imagine the
latter. Then the answer is
select="ELEM_INFO_ITEM[position() mod 3 = 0]
I then would like to use the extracted values as counter
values, to apply
counting on
the COORDINATE_ITEM node-set and select specific COORDINATE_ITEM
elements.In this example, based
on the extracted values (1, 7 and 11 ), i would like to
select the first,
seventh and eleventh
COORDINATE_ITEM elements content.
Then you do
<xsl:for-each select="/SHAPE/ELEM_INFO/ELEM_INFO_ITEM[position() mod 3 =
0]">
<xsl:value-of select="/SHAPE/COORDINATES_ITEM[number(current())]"/>
The source xml is the one following:
<SHAPE>
- <ELEM_INFO>
<ELEM_INFO_ITEM>1</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>1001</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>5000</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>7</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>1002</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>5000</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>11</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>1003</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>5000</ELEM_INFO_ITEM>
</ELEM_INFO>
- <COORDINATES>
<COORDINATES_ITEM>68</COORDINATES_ITEM> !first
<COORDINATES_ITEM>54</COORDINATES_ITEM>
<COORDINATES_ITEM>72/COORDINATES_ITEM>
<COORDINATES_ITEM>65</COORDINATES_ITEM>
<COORDINATES_ITEM>83</COORDINATES_ITEM>
<COORDINATES_ITEM>17</COORDINATES_ITEM>
<COORDINATES_ITEM>20</COORDINATES_ITEM> !seventh
<COORDINATES_ITEM>60</COORDINATES_ITEM>
<COORDINATES_ITEM>24</COORDINATES_ITEM>
<COORDINATES_ITEM>55</COORDINATES_ITEM>
<COORDINATES_ITEM>98</COORDINATES_ITEM> !eleventh
<COORDINATES_ITEM>25</COORDINATES_ITEM>
<COORDINATES>
</SHAPE>
Can this be achieved with the use of one and only
stylesheet??The output i
want to generate
should be identical with the source, except for that the selected
COORDINATE_ITEM elements
will also contain a character like d for example,
concatenated with their
number value.
This inverts the logic but it is still possible. Use an identity template:
<xsl:template match="*">
<xsl:copy><xsl:copy-of select="@*"/><xsl:apply-templates/></xsl:copy>
</xsl:template>
together with a template that alters the relevant COORDINATES_ITEM elements:
<xsl:template match="COORDINATES_ITEM[position() =
/SHAPE/ELEM_INFO/ELEM_INFO_ITEM[position() mod 3 = 0]]">
<xsl:copy>
<xsl:text>d</xsl:text>
<xsl:value-of select="."/>
</xsl:copy>
</xsl:template>
Not tested.
(If you don't understand the predicate in this template rule, look up the
XPath 1.0 rules for comparing a number with a node-set)
Michael Kay
That
last thing is very easy with the use of concat, but what
about the previous
issues.They look
quite heavy programmaticaly for xslt. Should i use variables??
output xml
<SHAPE>
- <ELEM_INFO>
<ELEM_INFO_ITEM>1</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>1001</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>5000</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>7</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>1002</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>5000</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>11</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>1003</ELEM_INFO_ITEM>
<ELEM_INFO_ITEM>5000</ELEM_INFO_ITEM>
</ELEM_INFO>
- <COORDINATES>
<COORDINATES_ITEM>d68</COORDINATES_ITEM> !first
<COORDINATES_ITEM>54</COORDINATES_ITEM>
<COORDINATES_ITEM>72/COORDINATES_ITEM>
<COORDINATES_ITEM>65</COORDINATES_ITEM>
<COORDINATES_ITEM>83</COORDINATES_ITEM>
<COORDINATES_ITEM>17</COORDINATES_ITEM>
<COORDINATES_ITEM>d20</COORDINATES_ITEM> !seventh
<COORDINATES_ITEM>60</COORDINATES_ITEM>
<COORDINATES_ITEM>24</COORDINATES_ITEM>
<COORDINATES_ITEM>55</COORDINATES_ITEM>
<COORDINATES_ITEM>d98</COORDINATES_ITEM> !eleventh
<COORDINATES_ITEM>25</COORDINATES_ITEM>
<COORDINATES>
</SHAPE>
Regards
Manousos
Athens
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