#ifndef Py_TOKENIZER_H

#define Py_TOKENIZER_H

#ifdef __cplusplus

extern "C" {

#endif

#include "object.h"

/* Tokenizer interface */

#include "token.h"	/* For token types */

#define MAXINDENT 100	/* Max indentation level */

/* Tokenizer state */

struct tok_state {

	/* Input state; buf <= cur <= inp <= end */

	/* NB an entire line is held in the buffer */

	char *buf;	/* Input buffer, or NULL; malloc'ed if fp != NULL */

	char *cur;	/* Next character in buffer */

	char *inp;	/* End of data in buffer */

	char *end;	/* End of input buffer if buf != NULL */

	char *start;	/* Start of current token if not NULL */

	int done;	/* E_OK normally, E_EOF at EOF, otherwise error code */

	/* NB If done != E_OK, cur must be == inp!!! */

	FILE *fp;	/* Rest of input; NULL if tokenizing a string */

	int tabsize;	/* Tab spacing */

	int indent;	/* Current indentation index */

	int indstack[MAXINDENT];	/* Stack of indents */

	int atbol;	/* Nonzero if at begin of new line */

	int pendin;	/* Pending indents (if > 0) or dedents (if < 0) */

	char *prompt, *nextprompt;	/* For interactive prompting */

	int lineno;	/* Current line number */

	int level;	/* () [] {} Parentheses nesting level */

			/* Used to allow free continuations inside them */

	/* Stuff for checking on different tab sizes */

	const char *filename;	/* For error messages */

	int altwarning;	/* Issue warning if alternate tabs don't match */

	int alterror;	/* Issue error if alternate tabs don't match */

	int alttabsize;	/* Alternate tab spacing */

	int altindstack[MAXINDENT];	/* Stack of alternate indents */

	/* Stuff for PEP 0263 */

	int decoding_state;	/* -1:decoding, 0:init, 1:raw */

	int decoding_erred;	/* whether erred in decoding  */

	int read_coding_spec;	/* whether 'coding:...' has been read  */

	char *encoding;

	int cont_line;          /* whether we are in a continuation line. */

	const char* line_start;	/* pointer to start of current line */

#ifndef PGEN

	PyObject *decoding_readline; /* codecs.open(...).readline */

	PyObject *decoding_buffer;

#endif

	const char* enc;

	const char* str;

};

extern struct tok_state *PyTokenizer_FromString(const char *);

extern struct tok_state *PyTokenizer_FromFile(FILE *, char *, char *);

extern void PyTokenizer_Free(struct tok_state *);

extern int PyTokenizer_Get(struct tok_state *, char **, char **);

#if defined(PGEN) || defined(Py_USING_UNICODE)

extern char * PyTokenizer_RestoreEncoding(struct tok_state* tok, 

					  int len, int *offset);

#endif

#ifdef __cplusplus

}

#endif

#endif /* !Py_TOKENIZER_H */