/usr.bin/yacc/defs.h
https://bitbucket.org/freebsd/freebsd-head/ · C++ Header · 348 lines · 224 code · 64 blank · 60 comment · 7 complexity · dd19888a394bd823f12ef3cbf087ba8f MD5 · raw file
- /*
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Robert Paul Corbett.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)defs.h 5.6 (Berkeley) 5/24/93
- * $FreeBSD$
- */
- #include <assert.h>
- #include <ctype.h>
- #include <err.h>
- #include <stdio.h>
- /* machine-dependent definitions */
- /* the following definitions are for the Tahoe */
- /* they might have to be changed for other machines */
- /* MAXTABLE is the maximum table size */
- /* BITS_PER_WORD is the number of bits in a C unsigned */
- /* WORDSIZE computes the number of words needed to */
- /* store n bits */
- /* BIT returns the value of the n-th bit starting */
- /* from r (0-indexed) */
- /* SETBIT sets the n-th bit starting from r */
- #define MAXTABLE 32500
- #define BITS_PER_WORD 32
- #define WORDSIZE(n) (((n)+(BITS_PER_WORD-1))/BITS_PER_WORD)
- #define BIT(r, n) ((((r)[(n)>>5])>>((n)&31))&1)
- #define SETBIT(r, n) ((r)[(n)>>5]|=((unsigned)1<<((n)&31)))
- /* character names */
- #define NUL '\0' /* the null character */
- #define NEWLINE '\n' /* line feed */
- #define SP ' ' /* space */
- #define BS '\b' /* backspace */
- #define HT '\t' /* horizontal tab */
- #define VT '\013' /* vertical tab */
- #define CR '\r' /* carriage return */
- #define FF '\f' /* form feed */
- #define QUOTE '\'' /* single quote */
- #define DOUBLE_QUOTE '\"' /* double quote */
- #define BACKSLASH '\\' /* backslash */
- /* defines for constructing filenames */
- #define CODE_SUFFIX ".code.c"
- #define DEFINES_SUFFIX ".tab.h"
- #define OUTPUT_SUFFIX ".tab.c"
- #define VERBOSE_SUFFIX ".output"
- /* keyword codes */
- #define TOKEN 0
- #define LEFT 1
- #define RIGHT 2
- #define NONASSOC 3
- #define MARK 4
- #define TEXT 5
- #define TYPE 6
- #define START 7
- #define UNION 8
- #define IDENT 9
- #define EXPECT 10
- /* symbol classes */
- #define UNKNOWN 0
- #define TERM 1
- #define NONTERM 2
- /* the undefined value */
- #define UNDEFINED (-1)
- /* action codes */
- #define SHIFT 1
- #define REDUCE 2
- /* character macros */
- #define IS_IDENT(c) (isalnum(c) || (c) == '_' || (c) == '.' || (c) == '$')
- #define IS_OCTAL(c) ((c) >= '0' && (c) <= '7')
- #define NUMERIC_VALUE(c) ((c) - '0')
- /* symbol macros */
- #define ISTOKEN(s) ((s) < start_symbol)
- #define ISVAR(s) ((s) >= start_symbol)
- /* storage allocation macros */
- #define NEW(t) ((t*)allocate(sizeof(t)))
- #define NEW2(n,t) ((t*)allocate((n)*sizeof(t)))
- /* the structure of a symbol table entry */
- typedef struct bucket bucket;
- struct bucket
- {
- struct bucket *link;
- struct bucket *next;
- char *name;
- char *tag;
- short value;
- short index;
- short prec;
- char class;
- char assoc;
- };
- /* the structure of the LR(0) state machine */
- typedef struct core core;
- struct core
- {
- struct core *next;
- struct core *link;
- short number;
- short accessing_symbol;
- short nitems;
- short items[1];
- };
- /* the structure used to record shifts */
- typedef struct shifts shifts;
- struct shifts
- {
- struct shifts *next;
- short number;
- short nshifts;
- short shift[1];
- };
- /* the structure used to store reductions */
- typedef struct reductions reductions;
- struct reductions
- {
- struct reductions *next;
- short number;
- short nreds;
- short rules[1];
- };
- /* the structure used to represent parser actions */
- typedef struct action action;
- struct action
- {
- struct action *next;
- short symbol;
- short number;
- short prec;
- char action_code;
- char assoc;
- char suppressed;
- };
- /* global variables */
- extern char dflag;
- extern char lflag;
- extern char rflag;
- extern char tflag;
- extern char vflag;
- extern const char *symbol_prefix;
- extern char *cptr;
- extern char *line;
- extern int lineno;
- extern int outline;
- extern const char *banner[];
- extern const char *tables[];
- extern const char *header[];
- extern const char *body[];
- extern const char *trailer[];
- extern char *action_file_name;
- extern char *code_file_name;
- extern char *defines_file_name;
- extern const char *input_file_name;
- extern char *output_file_name;
- extern char *text_file_name;
- extern char *union_file_name;
- extern char *verbose_file_name;
- extern FILE *action_file;
- extern FILE *code_file;
- extern FILE *defines_file;
- extern FILE *input_file;
- extern FILE *output_file;
- extern FILE *text_file;
- extern FILE *union_file;
- extern FILE *verbose_file;
- extern int nitems;
- extern int nrules;
- extern int nsyms;
- extern int ntokens;
- extern int nvars;
- extern int ntags;
- extern char unionized;
- extern int start_symbol;
- extern char **symbol_name;
- extern short *symbol_value;
- extern short *symbol_prec;
- extern char *symbol_assoc;
- extern short *ritem;
- extern short *rlhs;
- extern short *rrhs;
- extern short *rprec;
- extern char *rassoc;
- extern short **derives;
- extern char *nullable;
- extern bucket *first_symbol;
- extern bucket *last_symbol;
- extern int nstates;
- extern core *first_state;
- extern shifts *first_shift;
- extern reductions *first_reduction;
- extern short *accessing_symbol;
- extern core **state_table;
- extern shifts **shift_table;
- extern reductions **reduction_table;
- extern unsigned *LA;
- extern short *LAruleno;
- extern short *lookaheads;
- extern short *goto_map;
- extern short *from_state;
- extern short *to_state;
- extern action **parser;
- extern int SRexpect;
- extern int SRtotal;
- extern int RRtotal;
- extern short *SRconflicts;
- extern short *RRconflicts;
- extern short *defred;
- extern short *rules_used;
- extern short nunused;
- extern short final_state;
- /* global functions */
- void *allocate(size_t);
- void closure(short *, int);
- void create_symbol_table(void);
- void default_action_warning(void);
- void dollar_error(int, char *, char *) __dead2;
- void dollar_warning(int, int);
- void done(int) __dead2;
- void fatal(const char *msg) __dead2;
- void finalize_closure(void);
- void free_parser(void);
- void free_symbols(void);
- void free_symbol_table(void);
- void illegal_character(char *) __dead2;
- void illegal_tag(int, char *, char *) __dead2;
- void lalr(void);
- bucket *lookup(char *);
- void lr0(void);
- bucket *make_bucket(const char *);
- void make_parser(void);
- void no_grammar(void) __dead2;
- void no_space(void) __dead2;
- void open_error(const char *) __dead2;
- void output(void);
- void over_unionized(char *) __dead2;
- void prec_redeclared(void);
- void reader(void);
- void reflexive_transitive_closure(unsigned *, int);
- void reprec_warning(char *);
- void restarted_warning(void);
- void retyped_warning(char *);
- void revalued_warning(char *);
- void set_first_derives(void);
- void syntax_error(int, char *, char *) __dead2;
- void terminal_lhs(int) __dead2;
- void terminal_start(char *) __dead2;
- void tokenized_start(char *) __dead2;
- void undefined_goal(char *) __dead2;
- void undefined_symbol_warning(char *);
- void unexpected_EOF(void) __dead2;
- void unknown_rhs(int) __dead2;
- void unterminated_action(int, char *, char *) __dead2;
- void unterminated_comment(int, char *, char *) __dead2;
- void unterminated_string(int, char *, char *) __dead2;
- void unterminated_text(int, char *, char *) __dead2;
- void unterminated_union(int, char *, char *) __dead2;
- void untyped_lhs(void) __dead2;
- void untyped_rhs(int, char *) __dead2;
- void used_reserved(char *) __dead2;
- void verbose(void);
- void write_section(const char **);