cpython/Parser/tokenizer.h at improve_queue_join_example · rhettinger/cpython · GitHub

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#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 */

#define MAXLEVEL 200 /* Max parentheses level */

enum decoding_state {

STATE_INIT,

STATE_RAW,

STATE_NORMAL /* have a codec associated with input */

};

/* 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 */

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

const 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) */

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

int lineno; /* Current line number */

int first_lineno; /* First line of a single line or multi line string

expression (cf. issue 16806) */

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

/* Used to allow free continuations inside them */

char parenstack[MAXLEVEL];

int parenlinenostack[MAXLEVEL];

PyObject *filename;

/* Stuff for checking on different tab sizes */

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

/* Stuff for PEP 0263 */

enum decoding_state decoding_state;

int decoding_erred; /* whether erred in decoding */

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

char *encoding; /* Source encoding. */

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

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

const char* multi_line_start; /* pointer to start of first line of

a single line or multi line string

expression (cf. issue 16806) */

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

PyObject *decoding_buffer;

const char* enc; /* Encoding for the current str. */

char* str;

char* input; /* Tokenizer's newline translated copy of the string. */

int type_comments; /* Whether to look for type comments */

/* async/await related fields (still needed depending on feature_version) */

int async_hacks; /* =1 if async/await aren't always keywords */

int async_def; /* =1 if tokens are inside an 'async def' body. */

int async_def_indent; /* Indentation level of the outermost 'async def'. */

int async_def_nl; /* =1 if the outermost 'async def' had at least one

NEWLINE token after it. */

};

extern struct tok_state *PyTokenizer_FromString(const char *, int);

extern struct tok_state *PyTokenizer_FromUTF8(const char *, int);

extern struct tok_state *PyTokenizer_FromFile(FILE *, const char*,

const char *, const char *);

extern void PyTokenizer_Free(struct tok_state *);

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

#define tok_dump _Py_tok_dump

#ifdef __cplusplus

}

#endif

#endif /* !Py_TOKENIZER_H */

cpython/Parser/tokenizer.h at improve_queue_join_example · rhettinger/cpython · GitHub

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