637 lines
15 KiB
C
637 lines
15 KiB
C
/* $Id: defs.h,v 1.65 2019/11/19 23:47:49 tom Exp $ */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <limits.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <assert.h>
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#include <ctype.h>
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#include <stdio.h>
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#if defined(__cplusplus) /* __cplusplus, etc. */
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#define class myClass
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#endif
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#define YYMAJOR 1
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#define YYMINOR 9
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#define CONCAT(first,second) first #second
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#define CONCAT1(string,number) CONCAT(string, number)
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#define CONCAT2(first,second) #first "." #second
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#ifdef YYPATCH
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#define VSTRING(a,b) CONCAT2(a,b) CONCAT1(" ",YYPATCH)
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#else
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#define VSTRING(a,b) CONCAT2(a,b)
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#endif
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#define VERSION VSTRING(YYMAJOR, YYMINOR)
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/* machine-dependent definitions: */
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/* MAXCHAR is the largest unsigned character value */
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/* MAXTABLE is the maximum table size */
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/* YYINT is the smallest C integer type that can be */
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/* used to address a table of size MAXTABLE */
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/* MAXYYINT is the largest value of a YYINT */
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/* MINYYINT is the most negative value of a YYINT */
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/* BITS_PER_WORD is the number of bits in a C unsigned */
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/* WORDSIZE computes the number of words needed to */
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/* store n bits */
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/* BIT returns the value of the n-th bit starting */
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/* from r (0-indexed) */
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/* SETBIT sets the n-th bit starting from r */
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#define MAXCHAR UCHAR_MAX
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#ifndef MAXTABLE
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#define MAXTABLE 32500
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#endif
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#if MAXTABLE <= SHRT_MAX
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#define YYINT short
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#define MAXYYINT SHRT_MAX
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#define MINYYINT SHRT_MIN
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#elif MAXTABLE <= INT_MAX
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#define YYINT int
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#define MAXYYINT INT_MAX
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#define MINYYINT INT_MIN
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#else
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#error "MAXTABLE is too large for this machine architecture!"
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#endif
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#define BITS_PER_WORD ((int) sizeof (unsigned) * CHAR_BIT)
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#define WORDSIZE(n) (((n)+(BITS_PER_WORD-1))/BITS_PER_WORD)
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#define BIT(r, n) ((((r)[(n)/BITS_PER_WORD])>>((n)&(BITS_PER_WORD-1)))&1)
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#define SETBIT(r, n) ((r)[(n)/BITS_PER_WORD]|=((unsigned)1<<((n)&(BITS_PER_WORD-1))))
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/* character names */
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#define NUL '\0' /* the null character */
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#define NEWLINE '\n' /* line feed */
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#define SP ' ' /* space */
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#define BS '\b' /* backspace */
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#define HT '\t' /* horizontal tab */
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#define VT '\013' /* vertical tab */
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#define CR '\r' /* carriage return */
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#define FF '\f' /* form feed */
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#define QUOTE '\'' /* single quote */
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#define DOUBLE_QUOTE '\"' /* double quote */
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#define BACKSLASH '\\' /* backslash */
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#define UCH(c) (unsigned char)(c)
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/* defines for constructing filenames */
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#if defined(VMS)
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#define CODE_SUFFIX "_code.c"
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#define DEFINES_SUFFIX "_tab.h"
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#define EXTERNS_SUFFIX "_tab.i"
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#define OUTPUT_SUFFIX "_tab.c"
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#else
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#define CODE_SUFFIX ".code.c"
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#define DEFINES_SUFFIX ".tab.h"
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#define EXTERNS_SUFFIX ".tab.i"
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#define OUTPUT_SUFFIX ".tab.c"
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#endif
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#define VERBOSE_SUFFIX ".output"
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#define GRAPH_SUFFIX ".dot"
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/* keyword codes */
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typedef enum
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{
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TOKEN = 0
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,LEFT
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,RIGHT
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,NONASSOC
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,MARK
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,TEXT
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,TYPE
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,START
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,UNION
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,IDENT
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,EXPECT
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,EXPECT_RR
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,PURE_PARSER
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,PARSE_PARAM
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,LEX_PARAM
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,POSIX_YACC
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,TOKEN_TABLE
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,ERROR_VERBOSE
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,XXXDEBUG
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,XCODE
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#if defined(YYBTYACC)
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,LOCATIONS
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,DESTRUCTOR
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,INITIAL_ACTION
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#endif
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}
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KEY_CASES;
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/* symbol classes */
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typedef enum
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{
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UNKNOWN = 0
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,TERM
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,NONTERM
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,ACTION
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,ARGUMENT
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}
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SYM_CASES;
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/* the undefined value */
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#define UNDEFINED (-1)
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/* action codes */
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#define SHIFT 1
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#define REDUCE 2
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/* character macros */
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#define IS_NAME1(c) (isalpha(UCH(c)) || (c) == '_' || (c) == '$')
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#define IS_NAME2(c) (isalnum(UCH(c)) || (c) == '_' || (c) == '$')
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#define IS_IDENT(c) (isalnum(UCH(c)) || (c) == '_' || (c) == '.' || (c) == '$')
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#define IS_OCTAL(c) ((c) >= '0' && (c) <= '7')
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/* symbol macros */
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#define ISTOKEN(s) ((s) < start_symbol)
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#define ISVAR(s) ((s) >= start_symbol)
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/* storage allocation macros */
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#define CALLOC(k,n) (calloc((size_t)(k),(size_t)(n)))
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#define FREE(x) (free((char*)(x)))
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#define MALLOC(n) (malloc((size_t)(n)))
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#define TCMALLOC(t,n) ((t*) calloc((size_t)(n), sizeof(t)))
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#define TMALLOC(t,n) ((t*) malloc((size_t)(n) * sizeof(t)))
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#define NEW(t) ((t*)allocate(sizeof(t)))
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#define NEW2(n,t) ((t*)allocate(((size_t)(n)*sizeof(t))))
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#define REALLOC(p,n) (realloc((char*)(p),(size_t)(n)))
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#define TREALLOC(t,p,n) ((t*)realloc((char*)(p), (size_t)(n) * sizeof(t)))
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#define DO_FREE(x) if (x) { FREE(x); x = 0; }
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#define NO_SPACE(p) if (p == 0) no_space(); assert(p != 0)
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/* messages */
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#define PLURAL(n) ((n) > 1 ? "s" : "")
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/*
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* Features which depend indirectly on the btyacc configuration, but are not
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* essential.
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*/
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#if defined(YYBTYACC)
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#define USE_HEADER_GUARDS 1
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#else
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#define USE_HEADER_GUARDS 0
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#endif
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typedef char Assoc_t;
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typedef char Class_t;
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typedef YYINT Index_t;
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typedef YYINT Value_t;
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/* the structure of a symbol table entry */
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typedef struct bucket bucket;
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struct bucket
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{
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struct bucket *link;
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struct bucket *next;
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char *name;
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char *tag;
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#if defined(YYBTYACC)
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char **argnames;
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char **argtags;
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int args;
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char *destructor;
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#endif
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Value_t value;
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Index_t index;
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Value_t prec;
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Class_t class;
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Assoc_t assoc;
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};
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/* the structure of the LR(0) state machine */
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typedef struct core core;
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struct core
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{
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struct core *next;
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struct core *link;
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Value_t number;
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Value_t accessing_symbol;
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Value_t nitems;
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Value_t items[1];
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};
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/* the structure used to record shifts */
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typedef struct shifts shifts;
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struct shifts
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{
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struct shifts *next;
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Value_t number;
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Value_t nshifts;
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Value_t shift[1];
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};
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/* the structure used to store reductions */
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typedef struct reductions reductions;
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struct reductions
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{
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struct reductions *next;
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Value_t number;
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Value_t nreds;
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Value_t rules[1];
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};
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/* the structure used to represent parser actions */
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typedef struct action action;
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struct action
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{
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struct action *next;
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Value_t symbol;
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Value_t number;
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Value_t prec;
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char action_code;
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Assoc_t assoc;
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char suppressed;
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};
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/* the structure used to store parse/lex parameters */
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typedef struct param param;
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struct param
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{
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struct param *next;
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char *name; /* parameter name */
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char *type; /* everything before parameter name */
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char *type2; /* everything after parameter name */
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};
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/* global variables */
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extern char dflag2;
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extern char dflag;
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extern char gflag;
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extern char iflag;
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extern char lflag;
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extern char rflag;
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extern char sflag;
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extern char tflag;
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extern char vflag;
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extern const char *symbol_prefix;
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extern const char *myname;
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extern char *cptr;
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extern char *line;
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extern int lineno;
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extern int outline;
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extern int exit_code;
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extern int pure_parser;
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extern int token_table;
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extern int error_verbose;
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#if defined(YYBTYACC)
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extern int locations;
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extern int backtrack;
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extern int destructor;
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extern char *initial_action;
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#endif
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extern const char *const banner[];
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extern const char *const xdecls[];
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extern const char *const tables[];
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extern const char *const global_vars[];
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extern const char *const impure_vars[];
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extern const char *const hdr_defs[];
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extern const char *const hdr_vars[];
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extern const char *const body_1[];
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extern const char *const body_vars[];
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extern const char *const init_vars[];
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extern const char *const body_2[];
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extern const char *const body_3[];
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extern const char *const trailer[];
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extern char *code_file_name;
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extern char *input_file_name;
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extern size_t input_file_name_len;
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extern char *defines_file_name;
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extern char *externs_file_name;
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extern FILE *action_file;
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extern FILE *code_file;
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extern FILE *defines_file;
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extern FILE *externs_file;
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extern FILE *input_file;
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extern FILE *output_file;
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extern FILE *text_file;
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extern FILE *union_file;
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extern FILE *verbose_file;
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extern FILE *graph_file;
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extern Value_t nitems;
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extern Value_t nrules;
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extern Value_t nsyms;
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extern Value_t ntokens;
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extern Value_t nvars;
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extern int ntags;
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extern char unionized;
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extern char line_format[];
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extern Value_t start_symbol;
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extern char **symbol_name;
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extern char **symbol_pname;
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extern Value_t *symbol_value;
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extern Value_t *symbol_prec;
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extern char *symbol_assoc;
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#if defined(YYBTYACC)
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extern Value_t *symbol_pval;
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extern char **symbol_destructor;
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extern char **symbol_type_tag;
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#endif
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extern Value_t *ritem;
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extern Value_t *rlhs;
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extern Value_t *rrhs;
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extern Value_t *rprec;
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extern Assoc_t *rassoc;
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extern Value_t **derives;
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extern char *nullable;
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extern bucket *first_symbol;
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extern bucket *last_symbol;
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extern int nstates;
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extern core *first_state;
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extern shifts *first_shift;
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extern reductions *first_reduction;
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extern Value_t *accessing_symbol;
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extern core **state_table;
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extern shifts **shift_table;
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extern reductions **reduction_table;
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extern unsigned *LA;
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extern Value_t *LAruleno;
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extern Value_t *lookaheads;
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extern Value_t *goto_base;
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extern Value_t *goto_map;
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extern Value_t *from_state;
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extern Value_t *to_state;
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extern action **parser;
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extern int SRexpect;
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extern int RRexpect;
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extern int SRtotal;
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extern int RRtotal;
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extern Value_t *SRconflicts;
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extern Value_t *RRconflicts;
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extern Value_t *defred;
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extern Value_t *rules_used;
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extern Value_t nunused;
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extern Value_t final_state;
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extern Value_t *itemset;
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extern Value_t *itemsetend;
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extern unsigned *ruleset;
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extern param *lex_param;
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extern param *parse_param;
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/* global functions */
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#ifndef GCC_NORETURN
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#if defined(__dead2)
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#define GCC_NORETURN __dead2
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#elif defined(__dead)
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#define GCC_NORETURN __dead
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#else
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#define GCC_NORETURN /* nothing */
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#endif
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#endif
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#ifdef __GNUC__
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#define ATTRIBUTE_NORETURN __attribute__((noreturn))
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#elif defined(_MSC_VER)
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#define ATTRIBUTE_NORETURN __declspec(noreturn)
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#else
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#define ATTRIBUTE_NORETURN
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#endif
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#if defined(NDEBUG) && defined(_MSC_VER)
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#define NODEFAULT __assume(0);
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#else
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#define NODEFAULT
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#endif
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#define NOTREACHED NODEFAULT
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#ifndef GCC_UNUSED
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#if defined(__unused)
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#define GCC_UNUSED __unused
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#else
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#define GCC_UNUSED /* nothing */
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#endif
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#endif
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#ifndef GCC_PRINTFLIKE
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#define GCC_PRINTFLIKE(fmt,var) /*nothing */
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#endif
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/* closure.c */
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extern void closure(Value_t *nucleus, int n);
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extern void finalize_closure(void);
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extern void set_first_derives(void);
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/* error.c */
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struct ainfo
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{
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int a_lineno;
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char *a_line;
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char *a_cptr;
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};
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extern void arg_number_disagree_warning(int a_lineno, char *a_name);
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extern void arg_type_disagree_warning(int a_lineno, int i, char *a_name);
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ATTRIBUTE_NORETURN
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extern void at_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN;
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extern void at_warning(int a_lineno, int i);
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ATTRIBUTE_NORETURN
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extern void bad_formals(void) GCC_NORETURN;
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extern void default_action_warning(char *s);
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extern void destructor_redeclared_warning(const struct ainfo *);
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ATTRIBUTE_NORETURN
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extern void dollar_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN;
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extern void dollar_warning(int a_lineno, int i);
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ATTRIBUTE_NORETURN
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extern void fatal(const char *msg) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void illegal_character(char *c_cptr) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void illegal_tag(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void missing_brace(void) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void no_grammar(void) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void no_space(void) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void open_error(const char *filename) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void over_unionized(char *u_cptr) GCC_NORETURN;
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extern void prec_redeclared(void);
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extern void reprec_warning(char *s);
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extern void restarted_warning(void);
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extern void retyped_warning(char *s);
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extern void revalued_warning(char *s);
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extern void start_requires_args(char *a_name);
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ATTRIBUTE_NORETURN
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extern void syntax_error(int st_lineno, char *st_line, char *st_cptr) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void terminal_lhs(int s_lineno) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void terminal_start(char *s) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void tokenized_start(char *s) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void undefined_goal(char *s) GCC_NORETURN;
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extern void undefined_symbol_warning(char *s);
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ATTRIBUTE_NORETURN
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extern void unexpected_EOF(void) GCC_NORETURN;
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extern void unknown_arg_warning(int d_lineno, const char *dlr_opt,
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const char *d_arg, const char *d_line,
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const char *d_cptr);
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ATTRIBUTE_NORETURN
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extern void unknown_rhs(int i) GCC_NORETURN;
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extern void unsupported_flag_warning(const char *flag, const char *details);
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ATTRIBUTE_NORETURN
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extern void unterminated_action(const struct ainfo *) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void unterminated_comment(const struct ainfo *) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void unterminated_string(const struct ainfo *) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void unterminated_text(const struct ainfo *) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void unterminated_union(const struct ainfo *) GCC_NORETURN;
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extern void untyped_arg_warning(int a_lineno, const char *dlr_opt, const char *a_name);
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ATTRIBUTE_NORETURN
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extern void untyped_lhs(void) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void untyped_rhs(int i, char *s) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void used_reserved(char *s) GCC_NORETURN;
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ATTRIBUTE_NORETURN
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extern void unterminated_arglist(const struct ainfo *) GCC_NORETURN;
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extern void wrong_number_args_warning(const char *which, const char *a_name);
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extern void wrong_type_for_arg_warning(int i, char *a_name);
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/* graph.c */
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extern void graph(void);
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/* lalr.c */
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extern void lalr(void);
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/* lr0.c */
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extern void lr0(void);
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extern void show_cores(void);
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extern void show_ritems(void);
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extern void show_rrhs(void);
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extern void show_shifts(void);
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/* main.c */
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extern void *allocate(size_t n);
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ATTRIBUTE_NORETURN
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extern void done(int k) GCC_NORETURN;
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/* mkpar.c */
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extern void free_parser(void);
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extern void make_parser(void);
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/* mstring.c */
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struct mstring
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{
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char *base, *ptr, *end;
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};
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extern void msprintf(struct mstring *, const char *, ...) GCC_PRINTFLIKE(2,3);
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extern int mputchar(struct mstring *, int);
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extern struct mstring *msnew(void);
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extern struct mstring *msrenew(char *);
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extern char *msdone(struct mstring *);
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extern int strnscmp(const char *, const char *);
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extern unsigned int strnshash(const char *);
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#define mputc(m, ch) (((m)->ptr == (m)->end) \
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? mputchar(m,ch) \
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: (*(m)->ptr++ = (char) (ch)))
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/* output.c */
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extern void output(void);
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/* reader.c */
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extern void reader(void);
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typedef enum
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{
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CODE_HEADER = 0
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,CODE_REQUIRES
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,CODE_PROVIDES
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,CODE_TOP
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,CODE_IMPORTS
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,CODE_MAX /* this must be last */
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}
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CODE_CASES;
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extern struct code_lines
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{
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const char *name;
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char *lines;
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size_t num;
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}
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code_lines[CODE_MAX];
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/* skeleton.c (generated by skel2c) */
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extern void write_section(FILE * fp, const char *const section[]);
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/* symtab.c */
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extern bucket *make_bucket(const char *);
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extern bucket *lookup(const char *);
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extern void create_symbol_table(void);
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extern void free_symbol_table(void);
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extern void free_symbols(void);
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/* verbose.c */
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extern void verbose(void);
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/* warshall.c */
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extern void reflexive_transitive_closure(unsigned *R, int n);
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#ifdef DEBUG
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/* closure.c */
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extern void print_closure(int n);
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extern void print_EFF(void);
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extern void print_first_derives(void);
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/* lr0.c */
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extern void print_derives(void);
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#endif
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#ifdef NO_LEAKS
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extern void lr0_leaks(void);
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extern void lalr_leaks(void);
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extern void mkpar_leaks(void);
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extern void output_leaks(void);
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extern void mstring_leaks(void);
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extern void reader_leaks(void);
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#endif
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