54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/****************************************************************
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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 "compiler.h"
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#include "opcode.h"
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#include "toktyp.h"
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#include "advancewindow.h"
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/* $EXTRACT, $ZEXTRACT, and $ZSUBSTR use this compiler routine as all have similar function and identical invocation signatures */
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int f_extract(oprtype *a, opctype op)
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{
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triple *first, *last, *r;
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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r = maketriple(op);
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if (EXPR_FAIL == expr(&(r->operand[0]), MUMPS_STR))
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return FALSE;
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first = newtriple(OC_PARAMETER);
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last = newtriple(OC_PARAMETER);
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r->operand[1] = put_tref(first);
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first->operand[1] = put_tref(last);
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if (TK_COMMA != TREF(window_token))
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{
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first->operand[0] = put_ilit(1);
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last->operand[0] = put_ilit((OC_FNZSUBSTR == op) ? MAXPOSINT4 : 1);
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} else
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{
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advancewindow();
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if (EXPR_FAIL == expr(&(first->operand[0]), MUMPS_INT))
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return FALSE;
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if (TK_COMMA != TREF(window_token))
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last->operand[0] = (OC_FNZSUBSTR == op) ? put_ilit(MAXPOSINT4) : first->operand[0];
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else
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{
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advancewindow();
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if (EXPR_FAIL == expr(&(last->operand[0]), MUMPS_INT))
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return FALSE;
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}
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}
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ins_triple(r);
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*a = put_tref(r);
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return TRUE;
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}
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