44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2006 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 "toktyp.h"
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#include "valid_mname.h"
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boolean_t valid_labname(mstr *targ)
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{
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char *src, *src_top;
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src = targ->addr;
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src_top = targ->addr + targ->len;
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if (0 < targ->len && targ->len <= MAX_MIDENT_LEN)
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{
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if (VALID_MNAME_FCHAR(*src))
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{
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for ( ; ++src < src_top; )
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{
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if (!VALID_MNAME_NFCHAR(*src))
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break;
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}
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return (src == src_top ? TRUE: FALSE); /* Was it a valid M identifier? */
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} else if ((unsigned char)(*src) < NUM_ASCII_CHARS && ctypetab[*src] == TK_DIGIT)
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{
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for ( ; ++src < src_top; )
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{
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if ((unsigned char)(*src) >= NUM_ASCII_CHARS || ctypetab[*src] != TK_DIGIT)
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break;
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}
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return (src == src_top ? TRUE: FALSE); /* Was it a valid M identifier? */
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}
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}
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return FALSE;
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}
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