mirror of
https://github.com/jart/cosmopolitan.git
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fa20edc44d
- Remove most __ASSEMBLER__ __LINKER__ ifdefs - Rename libc/intrin/bits.h to libc/serialize.h - Block pthread cancelation in fchmodat() polyfill - Remove `clang-format off` statements in third_party
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Python 3 │
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│ https://docs.python.org/3/license.html │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/assert.h"
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#include "third_party/python/Include/grammar.h"
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#include "third_party/python/Include/pyerrors.h"
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#include "third_party/python/Include/token.h"
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/* Return the DFA for the given type */
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dfa *
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PyGrammar_FindDFA(grammar *g, int type)
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{
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dfa *d;
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#if 1
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/* Massive speed-up */
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d = &g->g_dfa[type - NT_OFFSET];
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assert(d->d_type == type);
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return d;
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#else
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/* Old, slow version */
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int i;
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for (i = g->g_ndfas, d = g->g_dfa; --i >= 0; d++) {
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if (d->d_type == type)
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return d;
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}
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assert(0);
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/* NOTREACHED */
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#endif
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}
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const char *
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PyGrammar_LabelRepr(label *lb)
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{
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static char buf[100];
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if (lb->lb_type == ENDMARKER)
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return "EMPTY";
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else if (ISNONTERMINAL(lb->lb_type)) {
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if (lb->lb_str == NULL) {
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PyOS_snprintf(buf, sizeof(buf), "NT%d", lb->lb_type);
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return buf;
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}
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else
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return lb->lb_str;
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}
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else if (lb->lb_type < N_TOKENS) {
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if (lb->lb_str == NULL)
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return _PyParser_TokenNames[lb->lb_type];
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else {
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PyOS_snprintf(buf, sizeof(buf), "%.32s(%.32s)",
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_PyParser_TokenNames[lb->lb_type], lb->lb_str);
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return buf;
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}
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}
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else {
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Py_FatalError("invalid label");
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return NULL;
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}
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}
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