fis-gtm/sr_port/lkglvn.c

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/****************************************************************
* *
* Copyright 2001, 2011 Fidelity Information Services, Inc *
* *
* 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 "mdef.h"
#include "gtm_string.h"
#include "compiler.h"
#include "opcode.h"
#include "toktyp.h"
#include "subscript.h"
#include "advancewindow.h"
error_def(ERR_COMMA);
error_def(ERR_EXTGBLDEL);
error_def(ERR_LKNAMEXPECTED);
error_def(ERR_MAXNRSUBSCRIPTS);
int lkglvn(boolean_t gblvn)
{
boolean_t vbar;
char *lknam, lkname_buf[MAX_MIDENT_LEN + 1], x;
opctype ox;
oprtype *sb1, *sb2, subscripts[MAX_LVSUBSCRIPTS];
triple *ref, *t1;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
ox = OC_LKNAME;
sb1 = sb2 = subscripts;
lknam = lkname_buf;
if (gblvn)
*lknam++ = '^';
if ((TK_LBRACKET == TREF(window_token)) || (TK_VBAR == TREF(window_token)))
{
vbar = (TK_VBAR == TREF(window_token));
advancewindow();
if (EXPR_FAIL == (vbar ? expr(sb1++, MUMPS_EXPR) : expratom(sb1++)))
return FALSE;
if (TK_COMMA == TREF(window_token))
{
advancewindow();
if (EXPR_FAIL == (vbar ? expr(sb1++, MUMPS_EXPR) : expratom(sb1++)))
return FALSE;
} else
*sb1++ = put_str(0, 0);
if ((!vbar && (TK_RBRACKET != TREF(window_token))) || (vbar && (TK_VBAR != TREF(window_token))))
{
stx_error(ERR_EXTGBLDEL);
return FALSE;
}
advancewindow();
ox = OC_LKEXTNAME;
} else
*sb1++ = put_ilit(0);
if (TK_IDENT != TREF(window_token))
{
stx_error(ERR_LKNAMEXPECTED);
return FALSE;
}
assert(MAX_MIDENT_LEN >= (TREF(window_ident)).len);
memcpy(lknam, (TREF(window_ident)).addr, (TREF(window_ident)).len);
lknam += (TREF(window_ident)).len;
*sb1++ = put_str(lkname_buf,(mstr_len_t)(lknam - lkname_buf));
advancewindow();
if (TK_LPAREN == TREF(window_token))
{
for (;;)
{
if (ARRAYTOP(subscripts) <= sb1)
{
stx_error(ERR_MAXNRSUBSCRIPTS);
return FALSE;
}
advancewindow();
if (EXPR_FAIL == expr(sb1, MUMPS_EXPR))
return FALSE;
sb1++;
if (TK_RPAREN == (x = TREF(window_token))) /* NOTE assignment */
{
advancewindow();
break;
}
if (TK_COMMA != x)
{
stx_error(ERR_COMMA);
return FALSE;
}
}
}
ref = newtriple(ox);
ref->operand[0] = put_ilit((mint)(sb1 - sb2));
for ( ; sb2 < sb1 ; sb2++)
{
t1 = newtriple(OC_PARAMETER);
ref->operand[1] = put_tref(t1);
ref = t1;
ref->operand[0] = *sb2;
}
return TRUE;
}