Xojo Plugin

Demonstrate the XML I, J, and K Properties

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Demonstrates the XML I, J, and K properties. These properties can be used in paths to access the I'th, J'th, or K'th child in a path. Three indexing properties are provided to allow for triple-nested loops using this feature.

Note: This example requires Chilkat v9.5.0.64 or later.

Xojo Plugin

// Note: This example requires Chilkat v9.5.0.64 or later.

Dim xml As New Chilkat.Xml

xml.Tag = "tripleNested"

Dim i As Int32
i = 0
Dim j As Int32
j = 0
Dim k As Int32
k = 0

Dim sbValue As New Chilkat.StringBuilder
Dim bAutoCreate As Boolean
bAutoCreate = True

While i < 3
    xml.I = i
    j = 0
    While j < 4
        xml.J = j
        k = 0
        While k < 2
            xml.K = k

            Dim n As Int32
            n = i * 100 + j * 10 + k
            sbValue.Clear 
            Dim success As Boolean
            success = sbValue.AppendInt(n)

            success = xml.UpdateAt("a[i]|b[j]|c[k]",bAutoCreate,sbValue.GetAsString())
            k = k + 1
        Wend
        j = j + 1
    Wend
    i = i + 1
Wend

System.DebugLog(xml.GetXml())

// This is the XML
// See below for code showing how to parse it..

// 	<?xml version="1.0" encoding="utf-8" ?>
// 	<tripleNested>
// 	    <a>
// 	        <b>
// 	            <c>0</c>
// 	            <c>1</c>
// 	        </b>
// 	        <b>
// 	            <c>10</c>
// 	            <c>11</c>
// 	        </b>
// 	        <b>
// 	            <c>20</c>
// 	            <c>21</c>
// 	        </b>
// 	        <b>
// 	            <c>30</c>
// 	            <c>31</c>
// 	        </b>
// 	    </a>
// 	    <a>
// 	        <b>
// 	            <c>100</c>
// 	            <c>101</c>
// 	        </b>
// 	        <b>
// 	            <c>110</c>
// 	            <c>111</c>
// 	        </b>
// 	        <b>
// 	            <c>120</c>
// 	            <c>121</c>
// 	        </b>
// 	        <b>
// 	            <c>130</c>
// 	            <c>131</c>
// 	        </b>
// 	    </a>
// 	    <a>
// 	        <b>
// 	            <c>200</c>
// 	            <c>201</c>
// 	        </b>
// 	        <b>
// 	            <c>210</c>
// 	            <c>211</c>
// 	        </b>
// 	        <b>
// 	            <c>220</c>
// 	            <c>221</c>
// 	        </b>
// 	        <b>
// 	            <c>230</c>
// 	            <c>231</c>
// 	        </b>
// 	    </a>
// 	</tripleNested>
// 

// Parse the XML, without needing to know the number of children.
// That can be discovered with the NumChildrenAt method.

i = 0
Dim aCount As Int32
aCount = xml.NumChildren
While i < aCount
    xml.I = i
    j = 0
    Dim bCount As Int32
    bCount = xml.NumChildrenAt("a[i]")
    While j < bCount
        xml.J = j
        k = 0
        Dim cCount As Int32
        cCount = xml.NumChildrenAt("a[i]|b[j]")
        While k < cCount
            xml.K = k
            System.DebugLog(Str(i) + ", " + Str(j) + ", " + Str(k) + ": " + Str(xml.GetChildIntValue("a[i]|b[j]|c[k]")))
            k = k + 1
        Wend
        j = j + 1
    Wend
    i = i + 1
Wend

// Output:

// 	0, 0, 0: 0
// 	0, 0, 1: 1
// 	0, 1, 0: 10
// 	0, 1, 1: 11
// 	0, 2, 0: 20
// 	0, 2, 1: 21
// 	0, 3, 0: 30
// 	0, 3, 1: 31
// 	1, 0, 0: 100
// 	1, 0, 1: 101
// 	1, 1, 0: 110
// 	1, 1, 1: 111
// 	1, 2, 0: 120
// 	1, 2, 1: 121
// 	1, 3, 0: 130
// 	1, 3, 1: 131
// 	2, 0, 0: 200
// 	2, 0, 1: 201
// 	2, 1, 0: 210
// 	2, 1, 1: 211
// 	2, 2, 0: 220
// 	2, 2, 1: 221
// 	2, 3, 0: 230
// 	2, 3, 1: 231
//