source: vendor/python/2.5/Parser/tokenizer.h

#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 **);

#ifdef __cplusplus
}
#endif
#endif /* !Py_TOKENIZER_H */