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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ifndef AWK_H
#define AWK_H
#include <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libintl.h>
#include <limits.h>
typedef double Awkfloat;
typedef unsigned char uchar;
#define xfree(a) { if ((a) != NULL) { free(a); a = NULL; } }
#define DEBUG
#ifdef DEBUG
/* uses have to be doubly parenthesized */
#define dprintf(x) if (dbg) (void) printf x
#else
#define dprintf(x)
#endif
extern char errbuf[200];
extern void error(int, char *);
#define ERROR (void) snprintf(errbuf, sizeof (errbuf),
/*CSTYLED*/
#define FATAL ), error(1, errbuf)
/*CSTYLED*/
#define WARNING ), error(0, errbuf)
/*CSTYLED*/
#define SYNTAX ), yyerror(errbuf)
/*CSTYLED*/
#define CONT )
extern int compile_time; /* 1 if compiling, 0 if running */
#define FLD_INCR 64
#define LINE_INCR 256
/* ensure that there is extra 1 byte in the buffer */
#define expand_buf(p, n, r) \
if (*(n) == 0 || (r) >= (*(n) - 1)) r_expand_buf(p, n, r)
extern uchar **FS;
extern uchar **RS;
extern uchar **ORS;
extern uchar **OFS;
extern uchar **OFMT;
extern Awkfloat *NR;
extern Awkfloat *FNR;
extern Awkfloat *NF;
extern uchar **FILENAME;
extern uchar **SUBSEP;
extern Awkfloat *RSTART;
extern Awkfloat *RLENGTH;
extern uchar *record;
extern size_t record_size;
extern int errorflag;
extern int donefld; /* 1 if record broken into fields */
extern int donerec; /* 1 if record is valid (no fld has changed */
extern uchar *patbeg; /* beginning of pattern matched */
extern int patlen; /* length. set in b.c */
/* Cell: all information about a variable or constant */
typedef struct Cell {
uchar ctype; /* OCELL, OBOOL, OJUMP, etc. */
uchar csub; /* CCON, CTEMP, CFLD, etc. */
uchar *nval; /* name, for variables only */
uchar *sval; /* string value */
Awkfloat fval; /* value as number */
unsigned tval;
/* type info: STR|NUM|ARR|FCN|FLD|CON|DONTFREE */
struct Cell *cnext; /* ptr to next if chained */
} Cell;
typedef struct { /* symbol table array */
int nelem; /* elements in table right now */
int size; /* size of tab */
Cell **tab; /* hash table pointers */
} Array;
#define NSYMTAB 50 /* initial size of a symbol table */
extern Array *symtab, *makesymtab(int);
extern Cell *setsymtab(uchar *, uchar *, Awkfloat, unsigned int, Array *);
extern Cell *lookup(uchar *, Array *);
extern Cell *recloc; /* location of input record */
extern Cell *nrloc; /* NR */
extern Cell *fnrloc; /* FNR */
extern Cell *nfloc; /* NF */
extern Cell *rstartloc; /* RSTART */
extern Cell *rlengthloc; /* RLENGTH */
/* Cell.tval values: */
#define NUM 01 /* number value is valid */
#define STR 02 /* string value is valid */
#define DONTFREE 04 /* string space is not freeable */
#define CON 010 /* this is a constant */
#define ARR 020 /* this is an array */
#define FCN 040 /* this is a function name */
#define FLD 0100 /* this is a field $1, $2, ... */
#define REC 0200 /* this is $0 */
#define freeable(p) (!((p)->tval & DONTFREE))
extern Awkfloat setfval(Cell *, Awkfloat), getfval(Cell *), r_getfval(Cell *);
extern uchar *setsval(Cell *, uchar *), *getsval(Cell *), *r_getsval(Cell *);
extern uchar *tostring(uchar *), *tokname(int), *qstring(uchar *, int);
#define getfval(p) \
(((p)->tval & (ARR|FLD|REC|NUM)) == NUM ? (p)->fval : r_getfval(p))
#define getsval(p) \
(((p)->tval & (ARR|FLD|REC|STR)) == STR ? (p)->sval : r_getsval(p))
/* function types */
#define FLENGTH 1
#define FSQRT 2
#define FEXP 3
#define FLOG 4
#define FINT 5
#define FSYSTEM 6
#define FRAND 7
#define FSRAND 8
#define FSIN 9
#define FCOS 10
#define FATAN 11
#define FTOUPPER 12
#define FTOLOWER 13
/* Node: parse tree is made of nodes, with Cell's at bottom */
typedef struct Node {
int ntype;
struct Node *nnext;
off_t lineno;
int nobj;
struct Node *narg[1];
/* variable: actual size set by calling malloc */
} Node;
#define NIL ((Node *)0)
extern Node *winner;
extern Node *nullstat;
extern Node *nullnode;
/* ctypes */
#define OCELL 1
#define OBOOL 2
#define OJUMP 3
/* Cell subtypes: csub */
#define CFREE 7
#define CCOPY 6
#define CCON 5
#define CTEMP 4
#define CNAME 3
#define CVAR 2
#define CFLD 1
/* bool subtypes */
#define BTRUE 11
#define BFALSE 12
/* jump subtypes */
#define JEXIT 21
#define JNEXT 22
#define JBREAK 23
#define JCONT 24
#define JRET 25
/* node types */
#define NVALUE 1
#define NSTAT 2
#define NEXPR 3
#define NFIELD 4
extern Cell *(*proctab[])(Node **, int);
extern Cell *nullproc(Node **, int);
extern int pairstack[], paircnt;
extern Node *stat1(int, Node *), *stat2(int, Node *, Node *);
extern Node *stat3(int, Node *, Node *, Node *);
extern Node *stat4(int, Node *, Node *, Node *, Node *);
extern Node *pa2stat(Node *, Node *, Node *);
extern Node *op1(int, Node *), *op2(int, Node *, Node *);
extern Node *op3(int, Node *, Node *, Node *);
extern Node *op4(int, Node *, Node *, Node *, Node *);
extern Node *linkum(Node *, Node *), *valtonode(Cell *, int);
extern Node *rectonode(void), *exptostat(Node *);
extern Node *makearr(Node *);
#define notlegal(n) \
(n <= FIRSTTOKEN || n >= LASTTOKEN || proctab[n-FIRSTTOKEN] == nullproc)
#define isvalue(n) ((n)->ntype == NVALUE)
#define isexpr(n) ((n)->ntype == NEXPR)
#define isjump(n) ((n)->ctype == OJUMP)
#define isexit(n) ((n)->csub == JEXIT)
#define isbreak(n) ((n)->csub == JBREAK)
#define iscont(n) ((n)->csub == JCONT)
#define isnext(n) ((n)->csub == JNEXT)
#define isret(n) ((n)->csub == JRET)
#define isstr(n) ((n)->tval & STR)
#define isnum(n) ((n)->tval & NUM)
#define isarr(n) ((n)->tval & ARR)
#define isfunc(n) ((n)->tval & FCN)
#define istrue(n) ((n)->csub == BTRUE)
#define istemp(n) ((n)->csub == CTEMP)
#define NCHARS (256+1)
#define NSTATES 32
typedef struct rrow {
int ltype;
int lval;
int *lfollow;
} rrow;
typedef struct fa {
uchar *restr;
int anchor;
int use;
uchar gototab[NSTATES][NCHARS];
int *posns[NSTATES];
uchar out[NSTATES];
int initstat;
int curstat;
int accept;
int reset;
struct rrow re[1];
} fa;
/* b.c */
extern fa *makedfa(uchar *, int);
extern int nematch(fa *, uchar *);
extern int match(fa *, uchar *);
extern int pmatch(fa *, uchar *);
/* lib.c */
extern int isclvar(uchar *);
extern int is_number(uchar *);
extern void setclvar(uchar *);
extern int readrec(uchar **, size_t *, FILE *);
extern void bracecheck(void);
extern void syminit(void);
extern void yyerror(char *);
extern void fldbld(void);
extern void recbld(void);
extern int getrec(uchar **, size_t *);
extern Cell *fieldadr(int);
extern void newfld(int);
extern Cell *getfld(int);
extern int fldidx(Cell *);
extern double errcheck(double, char *);
extern void fpecatch(int);
extern void init_buf(uchar **, size_t *, size_t);
extern void adjust_buf(uchar **, size_t);
extern void r_expand_buf(uchar **, size_t *, size_t);
extern int donefld;
extern int donerec;
extern uchar *record;
extern size_t record_size;
/* main.c */
extern int dbg;
extern uchar *cmdname;
extern uchar *lexprog;
extern int compile_time;
extern char radixpoint;
/* tran.c */
extern void syminit(void);
extern void arginit(int, uchar **);
extern void envinit(uchar **);
extern void freesymtab(Cell *);
extern void freeelem(Cell *, uchar *);
extern void funnyvar(Cell *, char *);
extern int hash(uchar *, int);
extern Awkfloat *ARGC;
/* run.c */
extern void run(Node *);
extern int paircnt;
extern Node *winner;
#ifndef input
extern int input(void);
#endif
extern int yyparse(void);
extern FILE *yyin;
extern off_t lineno;
/* proc */
extern Cell *nullproc(Node **, int);
extern Cell *program(Node **, int);
extern Cell *boolop(Node **, int);
extern Cell *relop(Node **, int);
extern Cell *array(Node **, int);
extern Cell *indirect(Node **, int);
extern Cell *substr(Node **, int);
extern Cell *sub(Node **, int);
extern Cell *gsub(Node **, int);
extern Cell *sindex(Node **, int);
extern Cell *a_sprintf(Node **, int);
extern Cell *arith(Node **, int);
extern Cell *incrdecr(Node **, int);
extern Cell *cat(Node **, int);
extern Cell *pastat(Node **, int);
extern Cell *dopa2(Node **, int);
extern Cell *matchop(Node **, int);
extern Cell *intest(Node **, int);
extern Cell *aprintf(Node **, int);
extern Cell *print(Node **, int);
extern Cell *closefile(Node **, int);
extern Cell *delete(Node **, int);
extern Cell *split(Node **, int);
extern Cell *assign(Node **, int);
extern Cell *condexpr(Node **, int);
extern Cell *ifstat(Node **, int);
extern Cell *whilestat(Node **, int);
extern Cell *forstat(Node **, int);
extern Cell *dostat(Node **, int);
extern Cell *instat(Node **, int);
extern Cell *jump(Node **, int);
extern Cell *bltin(Node **, int);
extern Cell *call(Node **, int);
extern Cell *arg(Node **, int);
extern Cell *getnf(Node **, int);
extern Cell *getaline(Node **, int);
#endif /* AWK_H */
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