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annotate Parser/parser.h @ 6719:faebc1940432 legacy-trunk

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Understand -Xlinker option.
author Guido van Rossum <guido@python.org>
date Tue, 02 Dec 1997 20:38:11 +0000
parents 1c9a84e0981d
children 916fb024ce94
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1 #ifndef Py_PARSER_H
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2 #define Py_PARSER_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 /***********************************************************
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8 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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9 The Netherlands.
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10
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11 All Rights Reserved
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12
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13 Permission to use, copy, modify, and distribute this software and its
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14 documentation for any purpose and without fee is hereby granted,
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15 provided that the above copyright notice appear in all copies and that
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16 both that copyright notice and this permission notice appear in
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17 supporting documentation, and that the names of Stichting Mathematisch
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18 Centrum or CWI or Corporation for National Research Initiatives or
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19 CNRI not be used in advertising or publicity pertaining to
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20 distribution of the software without specific, written prior
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21 permission.
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22
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23 While CWI is the initial source for this software, a modified version
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24 is made available by the Corporation for National Research Initiatives
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25 (CNRI) at the Internet address ftp://ftp.python.org.
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26
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27 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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28 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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29 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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30 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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31 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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32 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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33 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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34 PERFORMANCE OF THIS SOFTWARE.
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35
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36 ******************************************************************/
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37
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38 /* Parser interface */
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39
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40 #define MAXSTACK 500
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41
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42 typedef struct {
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43 int s_state; /* State in current DFA */
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44 dfa *s_dfa; /* Current DFA */
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45 struct _node *s_parent; /* Where to add next node */
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46 } stackentry;
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47
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48 typedef struct {
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49 stackentry *s_top; /* Top entry */
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50 stackentry s_base[MAXSTACK];/* Array of stack entries */
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51 /* NB The stack grows down */
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52 } stack;
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53
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54 typedef struct {
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55 stack p_stack; /* Stack of parser states */
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56 grammar *p_grammar; /* Grammar to use */
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57 node *p_tree; /* Top of parse tree */
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58 } parser_state;
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59
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60 parser_state *PyParser_New Py_PROTO((grammar *g, int start));
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61 void PyParser_Delete Py_PROTO((parser_state *ps));
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62 int PyParser_AddToken
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63 Py_PROTO((parser_state *ps, int type, char *str, int lineno));
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64 void PyGrammar_AddAccelerators Py_PROTO((grammar *g));
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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_PARSER_H */