1 #ifndef Py_TOKENIZER_H 2 #define Py_TOKENIZER_H 3 #ifdef __cplusplus 4 extern "C" { 5 #endif 6 7 #include "object.h" 8 9 /* Tokenizer interface */ 10 11 #include "token.h" /* For token types */ 12 13 #define MAXINDENT 100 /* Max indentation level */ 14 15 /* Tokenizer state */ 16 struct tok_state { 17 /* Input state; buf <= cur <= inp <= end */ 18 /* NB an entire line is held in the buffer */ 19 char *buf; /* Input buffer, or NULL; malloc'ed if fp != NULL */ 20 char *cur; /* Next character in buffer */ 21 char *inp; /* End of data in buffer */ 22 char *end; /* End of input buffer if buf != NULL */ 23 char *start; /* Start of current token if not NULL */ 24 int done; /* E_OK normally, E_EOF at EOF, otherwise error code */ 25 /* NB If done != E_OK, cur must be == inp!!! */ 26 FILE *fp; /* Rest of input; NULL if tokenizing a string */ 27 int tabsize; /* Tab spacing */ 28 int indent; /* Current indentation index */ 29 int indstack[MAXINDENT]; /* Stack of indents */ 30 int atbol; /* Nonzero if at begin of new line */ 31 int pendin; /* Pending indents (if > 0) or dedents (if < 0) */ 32 char *prompt, *nextprompt; /* For interactive prompting */ 33 int lineno; /* Current line number */ 34 int level; /* () [] {} Parentheses nesting level */ 35 /* Used to allow free continuations inside them */ 36 /* Stuff for checking on different tab sizes */ 37 const char *filename; /* For error messages */ 38 int altwarning; /* Issue warning if alternate tabs don't match */ 39 int alterror; /* Issue error if alternate tabs don't match */ 40 int alttabsize; /* Alternate tab spacing */ 41 int altindstack[MAXINDENT]; /* Stack of alternate indents */ 42 /* Stuff for PEP 0263 */ 43 int decoding_state; /* -1:decoding, 0:init, 1:raw */ 44 int decoding_erred; /* whether erred in decoding */ 45 int read_coding_spec; /* whether 'coding:...' has been read */ 46 char *encoding; 47 int cont_line; /* whether we are in a continuation line. */ 48 const char* line_start; /* pointer to start of current line */ 49 #ifndef PGEN 50 PyObject *decoding_readline; /* codecs.open(...).readline */ 51 PyObject *decoding_buffer; 52 #endif 53 const char* enc; 54 const char* str; 55 const char* input; /* Tokenizer's newline translated copy of the string. */ 56 }; 57 58 extern struct tok_state *PyTokenizer_FromString(const char *, int); 59 extern struct tok_state *PyTokenizer_FromFile(FILE *, char *, char *); 60 extern void PyTokenizer_Free(struct tok_state *); 61 extern int PyTokenizer_Get(struct tok_state *, char **, char **); 62 #if defined(PGEN) || defined(Py_USING_UNICODE) 63 extern char * PyTokenizer_RestoreEncoding(struct tok_state* tok, 64 int len, int *offset); 65 #endif 66 67 #ifdef __cplusplus 68 } 69 #endif 70 #endif /* !Py_TOKENIZER_H */ 71