mirror of
https://github.com/python/cpython.git
synced 2024-12-01 11:15:56 +01:00
caa6380886
use the new names exclusively, and the linker will see the new names. Files that import "Python.h" also only see the new names. Files that import "allobjects.h" will continue to be able to use the old names, due to the inclusion (in allobjects.h) of "rename2.h".
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
#ifndef Py_GRAMMAR_H
|
|
#define Py_GRAMMAR_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/***********************************************************
|
|
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
|
|
The Netherlands.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the names of Stichting Mathematisch
|
|
Centrum or CWI not be used in advertising or publicity pertaining to
|
|
distribution of the software without specific, written prior permission.
|
|
|
|
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
|
|
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
|
|
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
|
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
******************************************************************/
|
|
|
|
/* Grammar interface */
|
|
|
|
#include "bitset.h" /* Sigh... */
|
|
|
|
/* A label of an arc */
|
|
|
|
typedef struct {
|
|
int lb_type;
|
|
char *lb_str;
|
|
} label;
|
|
|
|
#define EMPTY 0 /* Label number 0 is by definition the empty label */
|
|
|
|
/* A list of labels */
|
|
|
|
typedef struct {
|
|
int ll_nlabels;
|
|
label *ll_label;
|
|
} labellist;
|
|
|
|
/* An arc from one state to another */
|
|
|
|
typedef struct {
|
|
short a_lbl; /* Label of this arc */
|
|
short a_arrow; /* State where this arc goes to */
|
|
} arc;
|
|
|
|
/* A state in a DFA */
|
|
|
|
typedef struct {
|
|
int s_narcs;
|
|
arc *s_arc; /* Array of arcs */
|
|
|
|
/* Optional accelerators */
|
|
int s_lower; /* Lowest label index */
|
|
int s_upper; /* Highest label index */
|
|
int *s_accel; /* Accelerator */
|
|
int s_accept; /* Nonzero for accepting state */
|
|
} state;
|
|
|
|
/* A DFA */
|
|
|
|
typedef struct {
|
|
int d_type; /* Non-terminal this represents */
|
|
char *d_name; /* For printing */
|
|
int d_initial; /* Initial state */
|
|
int d_nstates;
|
|
state *d_state; /* Array of states */
|
|
bitset d_first;
|
|
} dfa;
|
|
|
|
/* A grammar */
|
|
|
|
typedef struct {
|
|
int g_ndfas;
|
|
dfa *g_dfa; /* Array of DFAs */
|
|
labellist g_ll;
|
|
int g_start; /* Start symbol of the grammar */
|
|
int g_accel; /* Set if accelerators present */
|
|
} grammar;
|
|
|
|
/* FUNCTIONS */
|
|
|
|
grammar *newgrammar Py_PROTO((int start));
|
|
dfa *adddfa Py_PROTO((grammar *g, int type, char *name));
|
|
int addstate Py_PROTO((dfa *d));
|
|
void addarc Py_PROTO((dfa *d, int from, int to, int lbl));
|
|
dfa *PyGrammar_FindDFA Py_PROTO((grammar *g, int type));
|
|
char *typename Py_PROTO((grammar *g, int lbl));
|
|
|
|
int addlabel Py_PROTO((labellist *ll, int type, char *str));
|
|
int findlabel Py_PROTO((labellist *ll, int type, char *str));
|
|
char *PyGrammar_LabelRepr Py_PROTO((label *lb));
|
|
void translatelabels Py_PROTO((grammar *g));
|
|
|
|
void addfirstsets Py_PROTO((grammar *g));
|
|
|
|
void PyGrammar_AddAccelerators Py_PROTO((grammar *g));
|
|
|
|
void printgrammar Py_PROTO((grammar *g, FILE *fp));
|
|
void printnonterminals Py_PROTO((grammar *g, FILE *fp));
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_GRAMMAR_H */
|