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/* Grammar subroutines needed by parser */
#include "Python.h"
#include "pgenheaders.h"
#include "grammar.h"
#include "token.h"
/* Return the DFA for the given type */
PyGrammar_FindDFA(grammar *g, int type)
    dfa *d;
    /* Massive speed-up */
    d = &g->g_dfa[type - NT_OFFSET];
    assert(d->d_type == type);
    return d;
    /* Old, slow version */
    for (i = g->g_ndfas, d = g->g_dfa; --i >= 0; d++) {
        if (d->d_type == type)
            return d;
    Py_UNREACHABLE();
const 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_type < N_TOKENS) {
        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;
        Py_FatalError("invalid label");
        return NULL;

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