69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
#ifndef Py_PARSER_H
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#define Py_PARSER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***********************************************************
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI or Corporation for National Research Initiatives or
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CNRI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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While CWI is the initial source for this software, a modified version
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is made available by the Corporation for National Research Initiatives
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(CNRI) at the Internet address ftp://ftp.python.org.
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Parser interface */
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#define MAXSTACK 500
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typedef struct {
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int s_state; /* State in current DFA */
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dfa *s_dfa; /* Current DFA */
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struct _node *s_parent; /* Where to add next node */
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} stackentry;
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typedef struct {
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stackentry *s_top; /* Top entry */
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stackentry s_base[MAXSTACK];/* Array of stack entries */
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/* NB The stack grows down */
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} stack;
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typedef struct {
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stack p_stack; /* Stack of parser states */
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grammar *p_grammar; /* Grammar to use */
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node *p_tree; /* Top of parse tree */
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} parser_state;
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parser_state *newparser PROTO((grammar *g, int start));
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void delparser PROTO((parser_state *ps));
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int addtoken PROTO((parser_state *ps, int type, char *str, int lineno));
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void addaccelerators PROTO((grammar *g));
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_PARSER_H */
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