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v0.5.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 3071f8191bec3fee4a9fc5f8ec30c52dc8cd3ac2 authored by Thomas Heller on 14 April 2008, 16:17:33 UTC, committed by Thomas Heller on 14 April 2008, 16:17:33 UTC 
Merged revisions 62338 via svnmerge from
 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r62338 | thomas.heller | 2008-04-14 18:10:07 +0200 (Mo, 14 Apr 2008) | 3 lines

  Issue #2616: Implement ctypes.pointer() and ctypes.POINTER() in C for
  better performance.
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Tip revision: 3071f8191bec3fee4a9fc5f8ec30c52dc8cd3ac2 authored by Thomas Heller on 14 April 2008, 16:17:33 UTC
Merged revisions 62338 via svnmerge from
Tip revision: 3071f81
grammar1.c 

/* Grammar subroutines needed by parser */

#include "Python.h"
#include "pgenheaders.h"
#include "grammar.h"
#include "token.h"

/* Return the DFA for the given type */

dfa *
PyGrammar_FindDFA(grammar *g, register int type)
{
	register dfa *d;
#if 1
	/* Massive speed-up */
	d = &g->g_dfa[type - NT_OFFSET];
	assert(d->d_type == type);
	return d;
#else
	/* Old, slow version */
	register int i;
	
	for (i = g->g_ndfas, d = g->g_dfa; --i >= 0; d++) {
		if (d->d_type == type)
			return d;
	}
	assert(0);
	/* NOTREACHED */
#endif
}

char *
PyGrammar_LabelRepr(label *lb)
{
	static char buf[100];
	
	if (lb->lb_type == ENDMARKER)
		return "EMPTY";
	else if (ISNONTERMINAL(lb->lb_type)) {
		if (lb->lb_str == NULL) {
			PyOS_snprintf(buf, sizeof(buf), "NT%d", lb->lb_type);
			return buf;
		}
		else
			return lb->lb_str;
	}
	else {
		if (lb->lb_str == NULL)
			return _PyParser_TokenNames[lb->lb_type];
		else {
			PyOS_snprintf(buf, sizeof(buf), "%.32s(%.32s)",
				_PyParser_TokenNames[lb->lb_type], lb->lb_str);
			return buf;
		}
	}
}
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