add hg and python

1 files changed, 42 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Parser/parser.h b/sys/src/cmd/python/Parser/parser.h
new file mode 100644
index 000000000..bdca3e944
--- /dev/null
+++ b/sys/src/cmd/python/Parser/parser.h
@@ -0,0 +1,42 @@
+#ifndef Py_PARSER_H
+#define Py_PARSER_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Parser interface */
+
+#define MAXSTACK 500
+
+typedef struct {
+	int		 s_state;	/* State in current DFA */
+	dfa		*s_dfa;		/* Current DFA */
+	struct _node	*s_parent;	/* Where to add next node */
+} stackentry;
+
+typedef struct {
+	stackentry	*s_top;		/* Top entry */
+	stackentry	 s_base[MAXSTACK];/* Array of stack entries */
+					/* NB The stack grows down */
+} stack;
+
+typedef struct {
+	stack	 	p_stack;	/* Stack of parser states */
+	grammar		*p_grammar;	/* Grammar to use */
+	node		*p_tree;	/* Top of parse tree */
+#ifdef PY_PARSER_REQUIRES_FUTURE_KEYWORD
+	unsigned long	p_flags;	/* see co_flags in Include/code.h */
+#endif
+} parser_state;
+
+parser_state *PyParser_New(grammar *g, int start);
+void PyParser_Delete(parser_state *ps);
+int PyParser_AddToken(parser_state *ps, int type, char *str, int lineno, int col_offset,
+                      int *expected_ret);
+void PyGrammar_AddAccelerators(grammar *g);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_PARSER_H */