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/* $XConsortium: def.h /main/27 1995/12/08 18:26:29 gildea $ */
/*

Copyright (c) 1993, 1994  X Consortium

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the X Consortium.

 $Source: /cvsroot/device/DEVL/UTILS/MKDEPEND/def.h,v $
 $Revision: 1.5 $ $Date: 2004/11/04 07:11:37 $ $State: Exp $
 $Author: ayoung $ $Locker:  $

*/

#include "Xosdefs.h"
#ifdef MSDOS
#include "Xfuncpro.h"
#else
#include "Xfuncproto.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#ifndef X_NOT_POSIX
#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE
#endif
#endif
#include <sys/types.h>
#include <fcntl.h>
#include <sys/stat.h>

#define MAXDEFINES      512
#define MAXFILES        4096
#define MAXDIRS         1024
#define MAXPREFIXS      64 
#ifndef MAX_PATH
#define MAX_PATH        1024
#endif
#define SYMTABINC       10      /* must be > 1 for define() to work right */
#ifndef TRUE
#define TRUE            1
#define FALSE           0
#endif

/* embedded space handling */
#define BS_UNKNOWN      0
#define BS_IGNORE       1
#define BS_ESCAPE       2
#define BS_QUOTE        3
#define BS_JUNK         4
#define BS_URL          5

/* the following must match the directives table in main.c */
#define IF              0
#define IFDEF           1
#define IFNDEF          2
#define ELSE            3
#define ENDIF           4
#define DEFINE          5
#define UNDEF           6
#define INCLUDE         7
#define LINE            8
#define PRAGMA          9
#define ERROR           10
#define IDENT           11
#define SCCS            12
#define ELIF            13
#define EJECT           14
#define WARNING         15
#define IFFALSE         16      /* pseudo value --- never matched */
#define ELIFFALSE       17      /* pseudo value --- never matched */
#define INCLUDEDOT      18      /* pseudo value --- never matched */
#define IFGUESSFALSE    19      /* pseudo value --- never matched */
#define ELIFGUESSFALSE  20      /* pseudo value --- never matched */

#define MFLAG_NOSYSTEM  0x01
#define MFLAG_GENERATED 0x02

extern int      mflags;         /* -M flags */

#ifdef DEBUG
extern int      _debugmask;
/*
 * debug levels are:
 * 
 *     0        show ifn*(def)*,endif
 *     1        trace defined/!defined
 *     2        show #include
 *     3        show #include SYMBOL
 *     4-6      unused
 */
#define debug(level,arg) {      if (_debugmask & (1 << level)) info arg; }
#else
#define debug(level,arg) /**/
#endif /* DEBUG */

typedef unsigned char boolean;

struct symtab {
        char    *s_name;
        char    *s_value;
};

/* possible i_flag */
#define DEFCHECKED      (1<<0)  /* whether defines have been checked */
#define NOTIFIED        (1<<1)  /* whether we have revealed includes */
#define MARKED          (1<<2)  /* whether it's in the makefile */
#define SEARCHED        (1<<3)  /* whether we have read this */
#define FINISHED        (1<<4)  /* whether we are done reading this */
#define INCLUDED_SYM    (1<<5)  /* whether #include SYMBOL was found
                                   Can't use i_list if TRUE */
#define INCLUDED_SYMW   (1<<6)  /* Warning has been generated */

struct  inclist {
        char            *i_incstring;   /* string from #include line */
        char            *i_file;        /* path name of the include file */
        struct inclist  **i_list;       /* list of files it itself includes */
        int             i_listlen;      /* length of i_list */
        struct symtab   **i_defs;       /* symbol table for this file and its
                                           children when merged */
        int             i_ndefs;        /* current # defines */
        boolean         *i_merged;      /* whether we have merged child
                                           defines */
        unsigned char   i_flags;
};

struct filepointer {
        char   *f_p;
        char   *f_base;
        char   *f_end;
        long    f_len;
        long    f_line;
        char   *f_name;
};

#ifndef X_NOT_STDC_ENV
#include <stdlib.h>
#if defined(macII) && !defined(__STDC__)  /* stdlib.h fails to define these */
char            *malloc(), *realloc();
#endif /* macII */
#else
char            *malloc();
char            *realloc();
#endif

#ifndef __P
#if defined(__STDC__) || defined(__cplusplus)
# define __P(s) s
#else
# define __P(s) ()
#endif
#endif

/*cppsetup.c*/
extern int      cppsetup __P((char *line, struct filepointer *filep, struct inclist *inc));
extern struct   symtab **lookup __P((char *symbol));
extern int      pperror __P((int tag, int x0, int x1, int x2, int x3, int x4));
extern int      yyerror __P((char *s));
extern int      cppsetup __P((char *line, struct filepointer *filep, struct inclist *inc));

/*include.c*/
extern struct   inclist *inc_path __P((char *file, char *include, boolean dot));
extern int      remove_dotdot __P((char *path));
extern int      isdot __P((char *p));
extern int      isdotdot __P((char *p));
extern int      issymbolic __P((char *dir, char *component));
extern struct   inclist *newinclude __P((char *newfile, char *incstring));
extern void     included_by __P((struct inclist *ip, struct inclist *newfile));
extern void     inc_clean __P((void));
extern void     inc_dump __P((void));

/*main.c*/
extern struct filepointer *getfile __P((char *file));
extern int      freefile __P((struct filepointer *fp));
extern char     *copy __P((char *str));
extern int      match __P((char *str, const char **list));
extern char     *my_getline __P((struct filepointer *filep));
extern char     *base_name __P((char *file));
#if defined(USG) && !defined(CRAY) && !defined(SVR4)
extern int      rename __P((char *from, char *to));
#endif
extern void     redirect __P((char *line, char *makefile));
#ifdef NeedVarargsPrototypes
extern void     fatalerr __P((char *, ...));
extern void     warning __P((char *, ...));
extern void     warning1 __P((char *, ...));
extern void     info __P((char *, ...));
#endif

/*parse.c*/
extern int      find_includes __P((struct filepointer *filep, struct inclist *file, struct inclist *file_red, int recursion, boolean failOK));
extern int      gobble __P((struct filepointer *filep, struct inclist *file, struct inclist *file_red));
extern int      deftype __P((char *line, struct filepointer *filep, struct inclist *file_red, struct inclist *file, int parse_it));
extern struct symtab **isdefined __P((char *symbol, struct inclist *file, struct inclist **srcfile));
extern struct symtab **fdefined __P((char *symbol, struct inclist *file, struct inclist **srcfile));
extern int      zero_value __P((char *exp, struct filepointer *filep, struct inclist *file_red));
extern void     define __P((char *def, struct inclist *file));
extern void     define2 __P((char *name, char *val, struct inclist *file));
extern struct symtab **slookup __P((char *symbol, struct inclist *file));
extern int      merge2defines __P((struct inclist *file1, struct inclist *file2));
extern void     undefine __P((char *symbol, struct inclist *file));

/*pr.c*/
extern void     add_include __P((struct filepointer *filep, struct inclist *file, struct inclist *file_red, char *include, boolean dot, int failOK));
extern void     recursive_pr_include __P((struct inclist *head, char *file, char *base));
extern void     pr __P((struct inclist *ip, char *file, char *base));
#undef __P