Tcl

XML Sort by Content

See more XML Examples

Demonstrates the SortByContent method.

The input XML, available at http://www.chilkatsoft.com/data/fruitSort2.xml, is this:

<root>
    <fruits>
        <apples>
            <apple>fuji</apple>
            <apple>gala</apple>
            <apple>granny smith</apple>
            <apple>honeycrisp</apple>
            <apple>mcintosh</apple>
        </apples>
        <fruit>banana</fruit>
        <fruit>blackberry</fruit>
        <fruit>blueberry</fruit>
        <fruit>orange</fruit>
        <fruit>pear</fruit>
    </fruits>
</root>

Tcl

load ./chilkat.dll

set success 0

set xml [new_CkXml]

# xSortRoot is a CkXml

# The sample input XML is available at http://www.chilkatsoft.com/data/fruitSort2.xml
set success [CkXml_LoadXmlFile $xml "fruitSort2.xml"]
if {$success != 1} then {
    puts [CkXml_lastErrorText $xml]
    delete_CkXml $xml
    exit
}

# Sort the direct children under the "fruits" node by tag:
set xSortRoot [CkXml_FindChild $xml "fruits"]

# Sort in ascending order.
set bAscending 1
CkXml_SortByContent $xSortRoot $bAscending

# Show the result:
puts [CkXml_getXml $xml]

# Note:  The "apples" node contains child nodes, but its 
# text content is 0-length (empty).  Therefore, when sorting in
# ascending order, it will be positioned before the direct
# children containing non-empty content.

# <root>
#     <fruits>
#         <apples>
#             <apple>granny smith</apple>
#             <apple>gala</apple>
#             <apple>fuji</apple>
#             <apple>mcintosh</apple>
#             <apple>honeycrisp</apple>
#         </apples>
#         <fruit>banana</fruit>
#         <fruit>blackberry</fruit>
#         <fruit>blueberry</fruit>
#         <fruit>orange</fruit>
#         <fruit>pear</fruit>
#     </fruits>
# </root>

# Sort the direct children under the "apples" node:
set success [CkXml_FindChild2 $xSortRoot "apples"]

CkXml_SortByContent $xSortRoot $bAscending
puts [CkXml_getXml $xml]

# <root>
#     <fruits>
#         <apples>
#             <apple>fuji</apple>
#             <apple>gala</apple>
#             <apple>granny smith</apple>
#             <apple>honeycrisp</apple>
#             <apple>mcintosh</apple>
#         </apples>
#         <fruit>banana</fruit>
#         <fruit>blackberry</fruit>
#         <fruit>blueberry</fruit>
#         <fruit>orange</fruit>
#         <fruit>pear</fruit>
#     </fruits>
# </root>

delete_CkXml $xSortRoot


delete_CkXml $xml