PDF Placeholders with Other Delimiters: [[name]]

Dim success As Boolean
success = False

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  The PDF used in this example is available at letter_template.pdf

Dim pdf As New Chilkat.Pdf
success = pdf.LoadFile("qa_data/pdf/letter_template.pdf")
If (success = False) Then
    System.DebugLog(pdf.LastErrorText)
    Return
End If

//  The letter reads: "Dear [[name]]," ... "expires on [[expiry]]" ... "[[amount]] per year" ... "[[agent]]".
Dim json As New Chilkat.JsonObject
success = json.UpdateString("placeholderSyntax","[[name]]")
success = json.UpdateString("placeholders.date","October 18, 2026")
success = json.UpdateString("placeholders.name","Ms. Rivera")
success = json.UpdateString("placeholders.expiry","December 31, 2026")
success = json.UpdateString("placeholders.amount","$299.00")
success = json.UpdateString("placeholders.agent","Dana Whitfield, Account Manager")

Dim jsonOut As New Chilkat.JsonObject
success = pdf.TextReplace("apply",json,jsonOut)
If (success = False) Then
    System.DebugLog("Not applied: " + jsonOut.Emit())
    If (success = False) Then
        System.DebugLog(pdf.LastErrorText)
        Return
    End If

End If

Dim i As Int32
i = 0
Dim count_i As Int32
count_i = jsonOut.SizeOfArray("replacements")
While i < count_i
    jsonOut.I = i
    System.DebugLog("[[" + jsonOut.StringOf("replacements[i].field") + "]] replaced")
    i = i + 1
Wend

success = pdf.WriteFile("qa_output/letter_rivera.pdf")
If (success = False) Then
    System.DebugLog(pdf.LastErrorText)
    Return
End If

//  Sample output:

//  [[date]] replaced
//  [[name]] replaced
//  [[expiry]] replaced
//  [[amount]] replaced
//  [[agent]] replaced