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/* $Id: exlexname.c,v 1.3 2009/06/03 01:10:52 ellson Exp $ $Revision: 1.3 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
/*
* Glenn Fowler
* AT&T Research
*
* return lex name for op[subop]
*/
#include "exlib.h"
#include "exop.h"
#define TOTNAME 3
#define MAXNAME 16
char *exlexname(int op, int subop)
{
register char *b;
static int n;
static char buf[TOTNAME][MAXNAME];
if (op > MINTOKEN && op < MAXTOKEN)
return (char *) exop[op - MINTOKEN];
if (++n > TOTNAME)
n = 0;
b = buf[n];
if (op == '=') {
if (subop > MINTOKEN && subop < MAXTOKEN)
sfsprintf(b, MAXNAME, "%s=", exop[subop - MINTOKEN]);
else if (subop > ' ' && subop <= '~')
sfsprintf(b, MAXNAME, "%c=", subop);
else
sfsprintf(b, MAXNAME, "(%d)=", subop);
} else if (op > ' ' && op <= '~')
sfsprintf(b, MAXNAME, "%c", op);
else
sfsprintf(b, MAXNAME, "(%d)", op);
return b;
}
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