Unicode C 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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Unicode C

#include <C_CkPdfW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkPdfW pdf;
    HCkJsonObjectW json;
    HCkJsonObjectW jsonOut;
    int i;
    int count_i;

    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 = CkPdfW_Create();
    success = CkPdfW_LoadFile(pdf,L"qa_data/pdf/letter_template.pdf");
    if (success == FALSE) {
        wprintf(L"%s\n",CkPdfW_lastErrorText(pdf));
        CkPdfW_Dispose(pdf);
        return;
    }

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

    jsonOut = CkJsonObjectW_Create();
    success = CkPdfW_TextReplace(pdf,L"apply",json,jsonOut);
    if (success == FALSE) {
        wprintf(L"Not applied: %s\n",CkJsonObjectW_emit(jsonOut));
        if (success == FALSE) {
            wprintf(L"%s\n",CkPdfW_lastErrorText(pdf));
            CkPdfW_Dispose(pdf);
            CkJsonObjectW_Dispose(json);
            CkJsonObjectW_Dispose(jsonOut);
            return;
        }

    }

    i = 0;
    count_i = CkJsonObjectW_SizeOfArray(jsonOut,L"replacements");
    while (i < count_i) {
        CkJsonObjectW_putI(jsonOut,i);
        wprintf(L"[[%s]] replaced\n",CkJsonObjectW_stringOf(jsonOut,L"replacements[i].field"));
        i = i + 1;
    }

    success = CkPdfW_WriteFile(pdf,L"qa_output/letter_rivera.pdf");
    if (success == FALSE) {
        wprintf(L"%s\n",CkPdfW_lastErrorText(pdf));
        CkPdfW_Dispose(pdf);
        CkJsonObjectW_Dispose(json);
        CkJsonObjectW_Dispose(jsonOut);
        return;
    }

    //  Sample output:

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


    CkPdfW_Dispose(pdf);
    CkJsonObjectW_Dispose(json);
    CkJsonObjectW_Dispose(jsonOut);

    }