74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* Internals for Hammer.
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* Copyright (C) 2012 Meredith L. Patterson, Dan "TQ" Hirsch
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef HAMMER_INTERNAL__H
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#define HAMMER_INTERNAL__H
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#include <glib.h>
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#include "hammer.h"
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#define false 0
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#define true 1
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typedef struct parser_cache_key {
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input_stream_t input_pos;
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const parser_t *parser;
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} parser_cache_key_t;
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typedef enum parser_cache_value_type {
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PC_BASE,
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PC_IN_RECURSION,
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PC_LRESULT,
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PC_RESULT
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} parser_cache_value_type_t;
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typedef struct parser_cache_value {
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parser_cache_value_type_t value_type;
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union {
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int base;
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parse_result_t *in_recursion;
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parse_result_t *lresult;
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parse_result_t *result;
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};
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} parser_cache_value_t;
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typedef unsigned int *charset;
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static inline charset new_charset() {
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charset cs = g_new0(unsigned int, 256 / sizeof(unsigned int));
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return cs;
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}
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static inline int charset_isset(charset cs, uint8_t pos) {
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return !!(cs[pos / sizeof(*cs)] & (1 << (pos % sizeof(*cs))));
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}
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static inline void charset_set(charset cs, uint8_t pos, int val) {
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cs[pos / sizeof(*cs)] =
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val
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? cs[pos / sizeof(*cs)] | (1 << (pos % sizeof(*cs)))
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: cs[pos / sizeof(*cs)] & ~(1 << (pos % sizeof(*cs)));
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}
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// TODO(thequux): Set symbol visibility for these functions so that they aren't exported.
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long long read_bits(input_stream_t* state, int count, char signed_p);
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parse_result_t* do_parse(const parser_t* parser, parse_state_t *state);
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void put_cached(parse_state_t *ps, const parser_t *p, parse_result_t *cached);
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guint djbhash(const uint8_t *buf, size_t len);
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char* write_result_unamb(const parsed_token_t* tok);
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void pprint(const parsed_token_t* tok, int indent, int delta);
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#endif // #ifndef HAMMER_INTERNAL__H
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