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/*                                                    Utitlity macros for the W3 code library
                                  MACROS FOR GENERAL USE
                                             
   Generates: HTUtils.h
   
   See also: the system dependent file "tcp.h"
   
 */


#ifndef DEBUG
#define DEBUG   /* Noone ever turns this off as trace is too important */
#endif          /* Keeep option for really small memory applications tho */
               
#ifndef HTUTILS_H
#define HTUTILS_H

#ifdef _WINDOWS                         /* SCW */
#include "windef.h"
#define BOOLEAN_DEFINED
#endif

#ifdef SHORT_NAMES
#define WWW_TraceFlag HTTrFlag
#endif

/*

Debug message control.

 */

#ifndef STDIO_H
#include <stdio.h>
#define STDIO_H
#endif

#ifdef DEBUG
#define TRACE (WWW_TraceFlag)
#define PROGRESS(str) printf(str)
        extern int WWW_TraceFlag;
#else
#define TRACE 0
#define PROGRESS(str) /* nothing for now */
#endif

#define CTRACE if(TRACE)fprintf
#define tfp stderr

/*

  ERROR TYPE
 
   This is passed back when streams are aborted. It might be nice to have some structure
   of error messages, numbers, and recursive pointers to reasons. Curently this is a
   placeholder for something more sophisticated.
   
 */

typedef void * HTError;                 /* Unused at present -- best definition? */

/*

Standard C library for malloc() etc

 */

#ifdef vax
#ifdef unix
#define ultrix  /* Assume vax+unix=ultrix */
#endif
#endif

#ifndef VMS
#ifndef ultrix
#ifdef NeXT
#include <libc.h>       /* NeXT */
#endif
#ifndef MACH /* Vincent.Cate@furmint.nectar.cs.cmu.edu */
#include <stdlib.h>     /* ANSI */
#endif
#else /* ultrix */
#include <malloc.h>
#include <memory.h>
#include <stdio.h>
#include <stdlib.h>   /* ANSI */   /* BSN */
#endif

#else   /* VMS */
#include <stdio.h>
#include <ctype.h>
#endif

/*

Macros for declarations

 */

#define PUBLIC                  /* Accessible outside this module     */
#define PRIVATE static          /* Accessible only within this module */

#ifdef __STDC__
#define CONST const             /* "const" only exists in STDC */
#define NOPARAMS (void)
#define PARAMS(parameter_list) parameter_list
#define NOARGS (void)
#define ARGS1(t,a) \
                (t a)

#define ARGS2(t,a,u,b) \
                (t a, u b)

#define ARGS3(t,a,u,b,v,c) \
                (t a, u b, v c)

#define ARGS4(t,a,u,b,v,c,w,d) \
                (t a, u b, v c, w d)

#define ARGS5(t,a,u,b,v,c,w,d,x,e) \
                (t a, u b, v c, w d, x e)

#define ARGS6(t,a,u,b,v,c,w,d,x,e,y,f) \
                (t a, u b, v c, w d, x e, y f)

#define ARGS7(t,a,u,b,v,c,w,d,x,e,y,f,z,g) \
                (t a, u b, v c, w d, x e, y f, z g)

#define ARGS8(t,a,u,b,v,c,w,d,x,e,y,f,z,g,s,h) \
                (t a, u b, v c, w d, x e, y f, z g, s h)

#define ARGS9(t,a,u,b,v,c,w,d,x,e,y,f,z,g,s,h,r,i) \
                (t a, u b, v c, w d, x e, y f, z g, s h, r i)

#define ARGS10(t,a,u,b,v,c,w,d,x,e,y,f,z,g,s,h,r,i,q,j) \
                (t a, u b, v c, w d, x e, y f, z g, s h, r i, q j)


#else  /* not ANSI */

#ifndef _WINDOWS
#define CONST
#endif
#define NOPARAMS ()
#define PARAMS(parameter_list) ()
#define NOARGS ()
#define ARGS1(t,a) (a) \
                t a;

#define ARGS2(t,a,u,b) (a,b) \
                t a; u b;

#define ARGS3(t,a,u,b,v,c) (a,b,c) \
                t a; u b; v c;

#define ARGS4(t,a,u,b,v,c,w,d) (a,b,c,d) \
                t a; u b; v c; w d;

#define ARGS5(t,a,u,b,v,c,w,d,x,e) (a,b,c,d,e) \
                t a; u b; v c; w d; x e;

#define ARGS6(t,a,u,b,v,c,w,d,x,e,y,f) (a,b,c,d,e,f) \
                t a; u b; v c; w d; x e; y f;

#define ARGS7(t,a,u,b,v,c,w,d,x,e,y,f,z,g) (a,b,c,d,e,f,g) \
                t a; u b; v c; w d; x e; y f; z g;

#define ARGS8(t,a,u,b,v,c,w,d,x,e,y,f,z,g,s,h) (a,b,c,d,e,f,g,h) \
                t a; u b; v c; w d; x e; y f; z g; s h;

#define ARGS9(t,a,u,b,v,c,w,d,x,e,y,f,z,g,s,h,r,i) (a,b,c,d,e,f,g,h,i) \
                t a; u b; v c; w d; x e; y f; z g; s h; r i;

#define ARGS10(t,a,u,b,v,c,w,d,x,e,y,f,z,g,s,h,r,i,q,j) (a,b,c,d,e,f,g,h,i,j) \
                t a; u b; v c; w d; x e; y f; z g; s h; r i; q j;

               
       
#endif /* __STDC__ (ANSI) */

#ifndef NULL
#define NULL ((void *)0)
#endif

/*

Booleans

 */

/* Note: GOOD and BAD are already defined (differently) on RS6000 aix */
/* #define GOOD(status) ((status)38;1)   VMS style status: test bit 0         */
/* #define BAD(status)  (!GOOD(status))  Bit 0 set if OK, otherwise clear   */

#ifndef _WINDOWS
#ifndef BOOLEAN_DEFINED
        typedef char    BOOLEAN;                /* Logical value */
#ifndef CURSES
#ifndef TRUE
#define TRUE    (BOOLEAN)1
#define FALSE   (BOOLEAN)0
#endif
#endif   /*  CURSES  */
#endif   /* _WINDOWS */
#define BOOLEAN_DEFINED
#endif

#ifndef BOOL
#define BOOL BOOLEAN
#endif
#ifndef YES
#define YES (BOOLEAN)1
#define NO (BOOLEAN)0
#endif

#ifndef MIN
#define MIN(a,b) ((a) <= (b) ? (a) : (b))
#define MAX(a,b) ((a) >= (b) ? (a) : (b))
#endif

#define TCP_PORT 80     /* Allocated to http by Jon Postel/ISI 24-Jan-92 */
#define OLD_TCP_PORT 2784       /* Try the old one if no answer on 80 */
#define DNP_OBJ 80      /* This one doesn't look busy, but we must check */
                        /* That one was for decnet */

/*      Inline Function WHITE: Is character c white space? */
/*      For speed, include all control characters */

#define WHITE(c) (((unsigned char)(TOASCII(c))) <= 32)


/*

Sucess (>=0) and failure (<0) codes

 */


#define HT_LOADED 29999                 /* Instead of a socket */
#define HT_REDIRECTION_ON_FLY 29998     /* Redo the retrieve with a new URL */

#define HT_OK           0               /* Generic success*/

#define HT_NO_ACCESS    -10             /* Access not available */
#define HT_FORBIDDEN    -11             /* Access forbidden */
#define HT_INTERNAL     -12             /* Weird -- should never happen. */
#define HT_BAD_EOF      -12             /* Premature EOF */


#include "HTString.h"   /* String utilities */

#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif

#ifdef CURSES
        /* htbrowse.c; */
#ifdef ULTRIX      /* or DECSTATION */
#include <cursesX.h>    /* Extended curses under X. Only decent one :lou. */
#else
#include <curses.h>
#endif /* ULTRIX */
        extern        WINDOW  *w_top, *w_text, *w_prompt;
        extern        void    user_message PARAMS((const char *fmt, ...));
        extern        void    prompt_set PARAMS((CONST char * msg));
        extern        void    prompt_count PARAMS((long kb));
#else
/*#define user_message printf*//*PYW*/
#endif

/*

Out Of Memory checking for malloc() return:

 */

#ifndef __FILE__
#define __FILE__ ""
#define __LINE__ ""
#endif

#define outofmem(file, func) \
 { fprintf(stderr, "%s %s: out of memory.\nProgram aborted.\n", file, func); \
  exit(1);}

/* extern void outofmem PARAMS((const char *fname, const char *func)); */


/*

  WHO PUT THESE IN AND WHAT ARE THEY ANYWAY?
 
 */

#ifdef THEY_WILL_BE_REMOVED
extern void msg_init PARAMS((int height));
extern void msg_printf PARAMS((int y, const char *fmt, ...));
extern void msg_exit PARAMS((int wait_for_key));
#endif

/*

Upper- and Lowercase macros

   The problem here is that toupper(x) is not defined officially unless isupper(x) is.
   These macros are CERTAINLY needed on #if defined(pyr) || define(mips) or BDSI
   platforms. For safefy, we make them mandatory.
   
 */

#include <ctype.h>

#ifndef TOLOWER
  /* Pyramid and Mips can't uppercase non-alpha */
#define TOLOWER(c) (isupper(c) ? tolower(c) : (c))
#define TOUPPER(c) (islower(c) ? toupper(c) : (c))
#endif /* ndef TOLOWER */

/*

The local equivalents of CR and LF

   We can check for these after net ascii text has been converted to the local
   representation. Similarly, we include them in strings to be sent as net ascii after
   translation.
   
 */

#define LF   FROMASCII('\012')  /* ASCII line feed LOCAL EQUIVALENT */
#define CR   FROMASCII('\015')  /* Will be converted to ^M for transmission */

#endif /* HTUTILS_H */

/*

   end of utilities */