92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2011 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_string.h"
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#include "gdsroot.h"
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#include "gdsblk.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsbt.h"
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#include "gdsfhead.h"
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#include "gvsub2str.h"
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#include "mvalconv.h"
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#include "gv_xform_key.h"
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GBLREF int4 gv_keysize;
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GBLREF gv_namehead *gv_target;
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/* transform gv_currkey or gv_altkey based on collation sequence
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* if XBACK is true then convert from internal to external format.
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* if XBACK is false, convert from external to internal format
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*/
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void gv_xform_key(gv_key *keyp, boolean_t xback)
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{
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unsigned char *c0, *c1, *ctop;
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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if (TREF(gv_sparekey_size) < gv_keysize)
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{
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if (TREF(gv_sparekey))
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free(TREF(gv_sparekey));
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else
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{
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(TREF(gv_sparekey_mval)).str.addr = (char *)malloc(MAX_ZWR_KEY_SZ);
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(TREF(gv_sparekey_mval)).mvtype = MV_STR;
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}
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TREF(gv_sparekey) = (gv_key *)malloc(SIZEOF(gv_key) - 1 + gv_keysize);
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TREF(gv_sparekey_size) = gv_keysize;
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}
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assert(keyp->top == gv_keysize);
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assert(keyp->end < keyp->top);
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memcpy(TREF(gv_sparekey), keyp, SIZEOF(gv_key) + keyp->end);
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c1 = keyp->base;
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while (*c1++)
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;
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c0 = (TREF(gv_sparekey))->base + (c1 - keyp->base);
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ctop = &((TREF(gv_sparekey))->base[(TREF(gv_sparekey))->end]);
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if (!*c0) /* no subscipts */
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{
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assert(c0 == ctop);
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return;
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}
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assert(c0 < ctop);
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keyp->prev = 0;
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keyp->end = c1 - keyp->base;
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for (; c0 < ctop; )
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{
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if (STR_SUB_PREFIX != *c0)
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{
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assert(!gv_target->nct);
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while (*c1++ = *c0++)
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;
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keyp->prev = keyp->end;
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keyp->end = c1 - keyp->base;
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} else
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{
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TREF(transform) = xback;
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(TREF(gv_sparekey_mval)).str.len
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= gvsub2str(c0, (unsigned char *)((TREF(gv_sparekey_mval)).str.addr), FALSE)
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- (unsigned char *)(TREF(gv_sparekey_mval)).str.addr;
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TREF(transform) = !xback;
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mval2subsc(TADR(gv_sparekey_mval), keyp);
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c1 = &keyp->base[keyp->end];
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while (*c0++)
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;
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}
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assert(keyp->end < keyp->top);
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}
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return;
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}
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