Subversion Repositories eco32

/* $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    doif(Tokenrow *, enum kwtype);
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];
extern  char wd[];