Exec_stat exec(MCExecPoint& ep)
{
bool t_success;
t_success = true;
char *t_old_filename;
t_old_filename = nil;
if (t_success && m_old_file -> eval(ep) == ES_NORMAL)
t_old_filename = ep . getsvalue() . clone();
else
t_success = false;
char *t_new_filename;
t_new_filename = nil;
if (t_success && m_new_file -> eval(ep) == ES_NORMAL)
t_new_filename = ep . getsvalue() . clone();
else
t_success = false;
char *t_patch_filename;
t_patch_filename = nil;
if (t_success && m_patch_file -> eval(ep) == ES_NORMAL)
t_patch_filename = ep . getsvalue() . clone();
else
t_success = false;
IO_handle t_old_handle;
t_old_handle = nil;
if (t_success)
{
t_old_handle = MCS_open(t_old_filename, IO_READ_MODE, False, False, 0);
if (t_old_handle == nil)
t_success = false;
}
IO_handle t_new_handle;
t_new_handle = nil;
if (t_success)
{
t_new_handle = MCS_open(t_new_filename, IO_READ_MODE, False, False, 0);
if (t_new_handle == nil)
t_success = false;
}
IO_handle t_patch_handle;
t_patch_handle = nil;
if (t_success)
{
t_patch_handle = MCS_open(t_patch_filename, IO_WRITE_MODE, False, False, 0);
if (t_patch_handle == nil)
t_success = false;
}
if (t_success)
{
InputStream t_new_stream, t_old_stream;
OutputStream t_patch_stream;
t_new_stream . handle = t_new_handle;
t_old_stream . handle = t_old_handle;
t_patch_stream . handle = t_patch_handle;
t_success = MCBsDiffBuild(&t_old_stream, &t_new_stream, &t_patch_stream);
}
if (t_success)
MCresult -> clear();
else
MCresult -> sets("patch building failed");
if (t_patch_handle != nil)
MCS_close(t_patch_handle);
if (t_new_handle != nil)
MCS_close(t_new_handle);
if (t_old_handle != nil)
MCS_close(t_old_handle);
delete t_patch_filename;
delete t_new_filename;
delete t_old_filename;
return ES_NORMAL;
}
void exec_ctxt(MCExecContext &ctxt)
{
bool t_success;
t_success = true;
MCAutoStringRef t_old_filename;
if (!ctxt . EvalExprAsStringRef(m_old_file, EE_INTERNAL_BSDIFF_BADOLD, &t_old_filename))
return;
MCAutoStringRef t_new_filename;
if (!ctxt . EvalExprAsStringRef(m_new_file, EE_INTERNAL_BSDIFF_BADNEW, &t_new_filename))
return;
MCAutoStringRef t_patch_filename;
if (!ctxt . EvalExprAsStringRef(m_patch_file, EE_INTERNAL_BSDIFF_BADPATCH, &t_patch_filename))
return;
IO_handle t_old_handle;
t_old_handle = nil;
if (t_success)
{
t_old_handle = MCS_open(*t_old_filename, kMCOpenFileModeRead, False, False, 0);
if (t_old_handle == nil)
t_success = false;
}
IO_handle t_new_handle;
t_new_handle = nil;
if (t_success)
{
t_new_handle = MCS_open(*t_new_filename, kMCOpenFileModeRead, False, False, 0);
if (t_new_handle == nil)
t_success = false;
}
IO_handle t_patch_handle;
t_patch_handle = nil;
if (t_success)
{
t_patch_handle = MCS_open(*t_patch_filename, kMCOpenFileModeWrite, False, False, 0);
if (t_patch_handle == nil)
t_success = false;
}
if (t_success)
{
InputStream t_new_stream, t_old_stream;
OutputStream t_patch_stream;
t_new_stream . handle = t_new_handle;
t_old_stream . handle = t_old_handle;
t_patch_stream . handle = t_patch_handle;
t_success = MCBsDiffBuild(&t_old_stream, &t_new_stream, &t_patch_stream);
}
if (t_success)
ctxt . SetTheResultToEmpty();
else
ctxt . SetTheResultToCString("patch building failed");
if (t_patch_handle != nil)
MCS_close(t_patch_handle);
if (t_new_handle != nil)
MCS_close(t_new_handle);
if (t_old_handle != nil)
MCS_close(t_old_handle);
}
