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/* $Id: cpp.h,v 1.6 2001/06/04 22:42:04 drh Exp $ */

#include <stdio.h>

#define INS     32768           /* input buffer */

#define OBS     4096            /* outbut buffer */

#define NARG    32              /* Max number arguments to a macro */

#define NINCLUDE 32             /* Max number of include directories (-I) */

#define NIF     32              /* depth of nesting of #if */

#ifndef EOF

#define EOF     (-1)

#endif

#ifndef NULL

#define NULL    0

#endif

#ifndef __alpha

typedef unsigned char uchar;

#endif

enum toktype { END, UNCLASS, NAME, NUMBER, STRING, CCON, NL, WS, DSHARP,

                EQ, NEQ, LEQ, GEQ, LSH, RSH, LAND, LOR, PPLUS, MMINUS,

                ARROW, SBRA, SKET, LP, RP, DOT, AND, STAR, PLUS, MINUS,

                TILDE, NOT, SLASH, PCT, LT, GT, CIRC, OR, QUEST,

                COLON, ASGN, COMMA, SHARP, SEMIC, CBRA, CKET,

                ASPLUS, ASMINUS, ASSTAR, ASSLASH, ASPCT, ASCIRC, ASLSH,

                ASRSH, ASOR, ASAND, ELLIPS,

                DSHARP1, NAME1, DEFINED, UMINUS };

enum kwtype { KIF, KIFDEF, KIFNDEF, KELIF, KELSE, KENDIF, KINCLUDE, KDEFINE,

                KUNDEF, KLINE, KERROR, KPRAGMA, KDEFINED,

                KLINENO, KFILE, KDATE, KTIME, KSTDC, KEVAL };

#define ISDEFINED       01      /* has #defined value */

#define ISKW            02      /* is PP keyword */

#define ISUNCHANGE      04      /* can't be #defined in PP */

#define ISMAC           010     /* builtin macro, e.g. __LINE__ */

#define EOB     0xFE            /* sentinel for end of input buffer */

#define EOFC    0xFD            /* sentinel for end of input file */

#define XPWS    1               /* token flag: white space to assure token sep. */

typedef struct token {

        unsigned char   type;

        unsigned char   flag;

        unsigned short  hideset;

        unsigned int    wslen;

        unsigned int    len;

        uchar   *t;

} Token;

typedef struct tokenrow {

        Token   *tp;            /* current one to scan */

        Token   *bp;            /* base (allocated value) */

        Token   *lp;            /* last+1 token used */

        int     max;            /* number allocated */

} Tokenrow;

typedef struct source {

        char    *filename;      /* name of file of the source */

        int     line;           /* current line number */

        int     lineinc;        /* adjustment for \\n lines */

        uchar   *inb;           /* input buffer */

        uchar   *inp;           /* input pointer */

        uchar   *inl;           /* end of input */

        FILE*   fd;             /* input source */

        int     ifdepth;        /* conditional nesting in include */

        struct  source *next;   /* stack for #include */

} Source;

typedef struct nlist {

        struct nlist *next;

        uchar   *name;

        int     len;

        Tokenrow *vp;           /* value as macro */

        Tokenrow *ap;           /* list of argument names, if any */

        char    val;            /* value as preprocessor name */

        char    flag;           /* is defined, is pp name */

} Nlist;

typedef struct  includelist {

        char    deleted;

        char    always;

        char    *file;

} Includelist;

#define new(t)  (t *)domalloc(sizeof(t))

#define quicklook(a,b)  (namebit[(a)&077] & (1<<((b)&037)))

#define quickset(a,b)   namebit[(a)&077] |= (1<<((b)&037))

extern  unsigned long namebit[077+1];

enum errtype { WARNING, ERROR, FATAL };

void    expandlex(void);

void    fixlex(void);

void    setup(int, char **);

int     gettokens(Tokenrow *, int);

int     comparetokens(Tokenrow *, Tokenrow *);

Source  *setsource(char *, FILE *, char *);

void    unsetsource(void);

void    puttokens(Tokenrow *);

void    process(Tokenrow *);

void    *domalloc(int);

void    dofree(void *);

void    error(enum errtype, char *, ...);

void    flushout(void);

int     fillbuf(Source *);

int     trigraph(Source *);

int     foldline(Source *);

Nlist   *lookup(Token *, int);

void    control(Tokenrow *);

void    dodefine(Tokenrow *);

void    doadefine(Tokenrow *, int);

void    doinclude(Tokenrow *);

void    expand(Tokenrow *, Nlist *);

void    builtin(Tokenrow *, int);

int     gatherargs(Tokenrow *, Tokenrow **, int *);

void    substargs(Nlist *, Tokenrow *, Tokenrow **);

void    expandrow(Tokenrow *, char *);

void    maketokenrow(int, Tokenrow *);

Tokenrow *copytokenrow(Tokenrow *, Tokenrow *);

Token   *growtokenrow(Tokenrow *);

Tokenrow *normtokenrow(Tokenrow *);

void    adjustrow(Tokenrow *, int);

void    movetokenrow(Tokenrow *, Tokenrow *);

void    insertrow(Tokenrow *, int, Tokenrow *);

void    peektokens(Tokenrow *, char *);

void    doconcat(Tokenrow *);

Tokenrow *stringify(Tokenrow *);

int     lookuparg(Nlist *, Token *);

long    eval(Tokenrow *, int);

void    genline(void);

void    setempty(Tokenrow *);

void    makespace(Tokenrow *);

char    *outnum(char *, int);

int     digit(int);

uchar   *newstring(uchar *, int, int);

int     checkhideset(int, Nlist *);

void    prhideset(int);

int     newhideset(int, Nlist *);

int     unionhideset(int, int);

void    iniths(void);

void    setobjname(char *);

#define rowlen(tokrow)  ((tokrow)->lp - (tokrow)->bp)

extern  char *outp;

extern  Token   nltoken;

extern  Source *cursource;

extern  char *curtime;

extern  int incdepth;

extern  int ifdepth;

extern  int ifsatisfied[NIF];

extern  int Mflag;

extern  int skipping;

extern  int verbose;

extern  int Cplusplus;

extern  Nlist *kwdefined;

extern  Includelist includelist[NINCLUDE];