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/****************************************************************
* *
* Copyright (c) 2018 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "gtm_string.h"
#include "mdef.h"
#include "compiler.h"
#include "toktyp.h"
#include "op.h"
/**
* Generates a translate table where each byte in the search string (srch) is mapped to the corresponding byte in the replace
* string (repl).
*
* The result translate table contains the replace character at each search character's ASCII value; that is, if srch = "A",
* rplc="B", xlate['A' = 97] = 'B';
* For characters that aren't to be replaced, NO_VALUE is set. For characters that are to be deleted, DELETE_VALUE is set.
*
* @param [in] srch string representing the search characters
* @param [in] rplc string representing the replace characters
* @param [out] the allocate translate table; expected to be unitt'ed memory of size SIZEOF(int4) * NUM_CHARS
*/
void create_byte_xlate_table(mval *srch, mval *rplc, int4 *xlate)
{
sm_uc_ptr_t stop, scur, rtop, rcur;
memset(xlate, NO_VALUE, SIZEOF(int4) * NUM_CHARS);
scur = (sm_uc_ptr_t)srch->str.addr;
stop = scur + srch->str.len;
rcur = (sm_uc_ptr_t)rplc->str.addr;
rtop = rcur + rplc->str.len;
for (; (scur < stop) && (rcur < rtop); scur++, rcur++ )
if (NO_VALUE == xlate[*scur])
xlate[*scur] = *rcur;
for (; scur < stop; scur++)
if (NO_VALUE == xlate[*scur])
xlate[*scur] = DELETE_VALUE;
}
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