PureBasic

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.

PureBasic

IncludeFile "CkStringBuilder.pb"
IncludeFile "CkXml.pb"

Procedure ChilkatExample()

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

    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::setCkTag(xml, "tripleNested")

    i.i = 0
    j.i = 0
    k.i = 0

    sbValue.i = CkStringBuilder::ckCreate()
    If sbValue.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    bAutoCreate.i = 1

    While i < 3
        CkXml::setCkI(xml, i)
        j = 0
        While j < 4
            CkXml::setCkJ(xml, j)
            k = 0
            While k < 2
                CkXml::setCkK(xml, k)

                n.i = i * 100 + j * 10 + k
                CkStringBuilder::ckClear(sbValue)
                CkStringBuilder::ckAppendInt(sbValue,n)

                CkXml::ckUpdateAt(xml,"a[i]|b[j]|c[k]",bAutoCreate,CkStringBuilder::ckGetAsString(sbValue))
                k = k + 1
            Wend
            j = j + 1
        Wend
        i = i + 1
    Wend

    Debug CkXml::ckGetXml(xml)

    ; 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
    aCount.i = CkXml::ckNumChildren(xml)
    While i < aCount
        CkXml::setCkI(xml, i)
        j = 0
        bCount.i = CkXml::ckNumChildrenAt(xml,"a[i]")
        While j < bCount
            CkXml::setCkJ(xml, j)
            k = 0
            cCount.i = CkXml::ckNumChildrenAt(xml,"a[i]|b[j]")
            While k < cCount
                CkXml::setCkK(xml, k)
                Debug Str(i) + ", " + Str(j) + ", " + Str(k) + ": " + Str(CkXml::ckGetChildIntValue(xml,"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
    ; 


    CkXml::ckDispose(xml)
    CkStringBuilder::ckDispose(sbValue)


    ProcedureReturn
EndProcedure