bpo-40939: Remove the old parser (GH-20768)

This commit removes the old parser, the deprecated parser module, the old parser compatibility flags and environment variables and all associated support code and documentation.

1 files changed, 0 insertions, 47 deletions

diff --git a/Parser/grammar1.c b/Parser/grammar1.c
deleted file mode 100644
index c702040..0000000
--- a/Parser/grammar1.c
+++ /dev/null
@@ -1,47 +0,0 @@
-
-/* 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;
-    }
-}