Go Requires Chilkat v11.7.0+

PDF Placeholders with Other Delimiters: [[name]]

Demonstrates the "placeholderSyntax" option. Placeholders are {{name}} by default; a template written with other delimiters, such as [[name]] or <>, says so with placeholderSyntax, written around the word "name".

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    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

    pdf := chilkat.NewPdf()
    success = pdf.LoadFile("qa_data/pdf/letter_template.pdf")
    if success == false {
        fmt.Println(pdf.LastErrorText())
        pdf.DisposePdf()
        return
    }

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

    jsonOut := chilkat.NewJsonObject()
    success = pdf.TextReplace("apply",json,jsonOut)
    if success == false {
        fmt.Println("Not applied: ", *jsonOut.Emit())
        if success == false {
            fmt.Println(pdf.LastErrorText())
            pdf.DisposePdf()
            json.DisposeJsonObject()
            jsonOut.DisposeJsonObject()
            return
        }

    }

    i := 0
    count_i := jsonOut.SizeOfArray("replacements")
    for i < count_i {
        jsonOut.SetI(i)
        fmt.Println("[[", *jsonOut.StringOf("replacements[i].field"), "]] replaced")
        i = i + 1
    }

    success = pdf.WriteFile("qa_output/letter_rivera.pdf")
    if success == false {
        fmt.Println(pdf.LastErrorText())
        pdf.DisposePdf()
        json.DisposeJsonObject()
        jsonOut.DisposeJsonObject()
        return
    }

    //  Sample output:

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

    pdf.DisposePdf()
    json.DisposeJsonObject()
    jsonOut.DisposeJsonObject()