/*

File: myCustomFormatter.c

Abstract: wchardataformatter - a custom data formatter example for displaying content in 

the built-in Xcode Debugger.  The example uses wchar data.

Version: <1.0>

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*/

// Read this header for more information on custom data formatters and allocators

#import "/Developer/Applications/Xcode.app/Contents/PlugIns/GDBMIDebugging.xcplugin/Contents/Headers/DataFormatterPlugin.h"

#include <stdlib.h>

#include <wchar.h>

#include <string.h>

/* Custom data formatters should be installed in:

/Library/Application Support/Apple/Developer\ Tools/CustomDataViews

*/

//  A bundle to support custom data formatting must define the following symbol:

_pbxgdb_plugin_function_list *_pbxgdb_plugin_functions;

static char *nullPluginFunctions = "CFDataFormatter plugin error: _pbxgdb_plugin_functions not set!";

// All data formatters plugins can currently only return a 'char *' to be displayed

// in the Summary column, so this can be a lossy conversion.

// Read the DataFormatterPlugin.h header for more information on custom data formatters and allocators requirements

char * dataformatter_char_for_wchar(wchar_t *wcharData, int identifier, int bufLen)

{

    size_t maxChars = bufLen - 1;

    char * formatterBuf;

    if (_pbxgdb_plugin_functions) {

        formatterBuf = (char *)(_pbxgdb_plugin_functions->allocate(identifier, bufLen));

        formatterBuf[0] = 0;

        wcstombs( formatterBuf, wcharData, maxChars);

        // Uncomment if you want this printed in the console every time the formatter is evaluated. This is good for Debugging.

        // printf("wchar: %s\n",formatterBuf);

    }

    else {

        formatterBuf = nullPluginFunctions;

    }

    return formatterBuf;    

}

char * myWCharDataFormatter(wchar_t wcharData, int identifier)

{

    size_t bufLen = 2; 

    return dataformatter_char_for_wchar(&wcharData, identifier, bufLen);

}

char * myWCharPointerDataFormatter(wchar_t *wcharData, int identifier)

{

    size_t bufLen = 255; 

    return dataformatter_char_for_wchar(wcharData, identifier, bufLen);

}