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