From a19a216bc60160c162e616145ef091dd18ce4e61 Mon Sep 17 00:00:00 2001 From: Skip Montanaro Date: Tue, 16 Feb 2021 14:40:46 -0600 Subject: Python 0.9.1 as posted in alt.sources --- src/parser.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 src/parser.h (limited to 'src/parser.h') diff --git a/src/parser.h b/src/parser.h new file mode 100644 index 0000000..3e8090a --- /dev/null +++ b/src/parser.h @@ -0,0 +1,50 @@ +/*********************************************************** +Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The +Netherlands. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the names of Stichting Mathematisch +Centrum or CWI not be used in advertising or publicity pertaining to +distribution of the software without specific, written prior permission. + +STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO +THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE +FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT +OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +******************************************************************/ + +/* Parser interface */ + +#define MAXSTACK 100 + +typedef struct _stackentry { + int s_state; /* State in current DFA */ + dfa *s_dfa; /* Current DFA */ + struct _node *s_parent; /* Where to add next node */ +} stackentry; + +typedef struct _stack { + stackentry *s_top; /* Top entry */ + stackentry s_base[MAXSTACK];/* Array of stack entries */ + /* NB The stack grows down */ +} stack; + +typedef struct { + struct _stack p_stack; /* Stack of parser states */ + struct _grammar *p_grammar; /* Grammar to use */ + struct _node *p_tree; /* Top of parse tree */ +} parser_state; + +parser_state *newparser PROTO((struct _grammar *g, int start)); +void delparser PROTO((parser_state *ps)); +int addtoken PROTO((parser_state *ps, int type, char *str, int lineno)); +void addaccelerators PROTO((grammar *g)); -- cgit v1.2.3