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v0.5.1
v0.5.1
Revision 1e4fa91104a03c44baa241326102cbec42d387f1 authored by Miss Islington (bot) on 07 June 2020, 07:06:40 UTC, committed by GitHub on 07 June 2020, 07:06:40 UTC
This is not part of the limited API but makes the buffer slots available for type specs. (cherry picked from commit f7c4e236429606e1c982cacf24e10fc86ef4462f)
1 parent 90ee51f
grammar1.c
/* Grammar subroutines needed by parser */
#include "Python.h"
#include "grammar.h"
#include "token.h"
/* Return the DFA for the given type */
const dfa *
PyGrammar_FindDFA(grammar *g, int type)
{
/* Massive speed-up */
const dfa *d = &g->g_dfa[type - NT_OFFSET];
assert(d->d_type == type);
return d;
}
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;
}
}
else {
Py_FatalError("invalid grammar label");
return NULL;
}
}
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