/* chew
   Copyright (C) 1990-1991 Free Software Foundation, Inc.
   Contributed by steve chamberlain @cygnus

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/*
 Yet another way of extracting documentation from source.
 No, I haven't finished it yet, but I hope you people like it better
 that the old way
  
 sac

Basically, this is a sort of string forth, maybe we should call it
struth?

You define new words thus:
: <newword> <oldwords> ;
There is  no

*/



#include <ansidecl.h>
#include "sysdep.h"

#define DEF_SIZE 5000
#define STACK 50

int internal_wanted;
int internal_mode;

int warning;


/* Here is a string type ... */

typedef struct buffer 
{
    char *ptr;
    unsigned int write_idx;
    unsigned int size;
} string_type;







static void DEFUN(init_string_with_size,(buffer, size),
	   string_type *buffer AND
	   unsigned int size )
{
    buffer->write_idx = 0;
    buffer->size = size;
    buffer->ptr = malloc(size);
}

static void DEFUN(init_string,(buffer),
	   string_type *buffer)
{
    init_string_with_size(buffer, DEF_SIZE);

}

static int DEFUN(find, (str, what),
	  string_type *str AND
	  char *what)
{
    unsigned int i;
    char *p;
    p = what;
    for (i = 0; i < str->write_idx && *p; i++) 
    {
	if (*p == str->ptr[i])
	 p++;
	else
	 p = what;
    }
    return (*p == 0);
    
}

static void DEFUN(write_buffer,(buffer),
	   string_type *buffer)
{
    fwrite(buffer->ptr, buffer->write_idx, 1, stdout);
}


static void DEFUN(delete_string,(buffer),
	   string_type *buffer)
{
    free(buffer->ptr);
}


static char *DEFUN(addr, (buffer, idx),
	    string_type *buffer AND
	    unsigned int idx)
{
    return buffer->ptr + idx;
}

static char DEFUN(at,(buffer, pos),
	   string_type *buffer AND
	   unsigned int pos) 
{
    if ( pos >= buffer->write_idx) 
    {
	return 0;
    }
    return buffer->ptr[pos];
}

static void DEFUN(catchar,(buffer, ch), 
	   string_type *buffer AND
	   char ch)
{
    if (buffer->write_idx == buffer->size) 
    {
	buffer->size *=2;
	buffer->ptr = realloc(buffer->ptr, buffer->size);
    }

    buffer->ptr[buffer->write_idx ++ ] = ch;
}


static void DEFUN(overwrite_string,(dst,   src),
	   string_type *dst AND
	   string_type *src)
{
    free(dst->ptr);
    dst->size = src->size;
    dst->write_idx = src->write_idx;
    dst->ptr = src->ptr;
}

static void DEFUN(catstr,(dst, src),
	   string_type *dst AND
	   string_type *src)
{
    unsigned int i;
    for (i = 0; i < src->write_idx; i++) 
    {
	catchar(dst, src->ptr[i]);
    }
}


static void DEFUN(cattext,(buffer, string),
	   string_type *buffer AND
	   char *string)
{
    
    while (*string) 
    {
	catchar(buffer, *string);
	string++;
    }
}

static void DEFUN(catbuf,(buffer, buf, len),
	   string_type *buffer AND
	   char *buf AND
	   unsigned int len)
{
    
    while (len--) 
    {
	catchar(buffer, *buf);
	buf++;
    }
}



static unsigned int 
DEFUN(skip_white_and_stars,(src, idx),
      string_type *src AND
      unsigned int idx)
{
    while (isspace(at(src,idx)) 
	   || (at(src,idx) == '*' && at(src,idx +1) !='/'
	       && at(src,idx -1) != '\n')) 
     idx++;
    return idx;
    

}
/***********************************************************************/


string_type stack[STACK];
string_type *tos;

unsigned int idx = 0; /* Pos in input buffer */
string_type *ptr; /* and the buffer */
typedef void (*stinst_type)();
stinst_type *pc;
stinst_type sstack[STACK];
stinst_type *ssp = &sstack[0];
int istack[STACK];
int *isp = &istack[0];

typedef int *word_type;



struct dict_struct
{
    char *word;
    struct dict_struct *next;
   stinst_type *code;
    int code_length;
    int code_end;
    int var;
    
};
typedef struct dict_struct dict_type;
#define WORD(x) static void x()

static void DEFUN(exec,(word),
		  dict_type *word)
{
    pc = word->code;
    while (*pc) 
    {
	(*pc)();
    }
    
}
WORD(call)
{
stinst_type *oldpc = pc;
    dict_type *e;
    e =  (dict_type *)(pc [1]);
    exec(e);
    pc = oldpc + 2;
    
}

WORD(remchar)
{
    tos->write_idx--;    
    pc++;
    
}

WORD(push_number)
{
    isp++;
    pc++;
    *isp = (int)(*pc);
    pc++;
    
}




WORD(push_text)
{
    
    tos++;
    init_string(tos);
    pc++;
    cattext(tos,*((char **)pc));
    pc++;
    
}


   
/* This function removes everything not inside comments starting on
   the first char of the line from the  string, also when copying
   comments, removes blank space and leading *'s 
   Blank lines are turned into one blank line
 */

static void 
DEFUN(remove_noncomments,(src,dst),
	   string_type *src AND
	   string_type *dst)
{
    unsigned int idx = 0;
    
    while (at(src,idx)) 
    {
	/* Now see if we have a comment at the start of the line */
	if (at(src,idx) == '\n' 
	    && at(src,idx+1) ==  '/' 
	    && at(src,idx+2) == '*') 
	{
	    idx+=3;
	    
	    idx = skip_white_and_stars(src,idx);

	    /* Remove leading dot */
	    if (at(src, idx) == '.')
	     idx++;
	    
	    /* Copy to the end of the line, or till the end of the
	       comment */
	    while (at(src, idx))
	    {
		if (at(src, idx) == '\n') 
		{
		    /* end of line, echo and scrape of leading blanks  */
		    if (at(src,idx +1) == '\n')
		     catchar(dst,'\n');
		    catchar(dst,'\n');
		    idx++;
		    idx =   skip_white_and_stars(src, idx);
		}
		else if (at(src, idx) == '*' && at(src,idx+1) == '/') 
		{
		    idx +=2 ;
		    cattext(dst,"\nENDDD\n");
		    break;
		}
		else 
		{
		    catchar(dst, at(src, idx));
		    idx++;
		}
	    }
	}
	else idx++;
    }
}

/* turn:
     foobar name(stuff);
   into:
     foobar
     name PARAMS ((stuff));
   and a blank line.
 */

static void
DEFUN_VOID(paramstuff)
{
    unsigned int openp;
    unsigned int fname;
    unsigned int idx;
    string_type out;
    init_string(&out);
    

    /* make sure that it's not already param'd or proto'd */
    if(find(tos,"PARAMS") || find(tos,"PROTO") || !find(tos,"(")) {
	    catstr(&out,tos);
	}
    else 
    {
	/* Find the open paren */
	for (openp = 0; at(tos, openp) != '('  && at(tos,openp); openp++)
	 ;

	fname = openp;
	/* Step back to the fname */
	fname--;
	while (fname && isspace(at(tos, fname)))
	 fname --;
	while (fname && !isspace(at(tos,fname)) && at(tos,fname) != '*')
	 fname--;

	fname++;
	
	for (idx = 0; idx < fname; idx++) 	/* Output type */
	{
	    catchar(&out, at(tos,idx));
	}
    
        cattext(&out, "\n");	/* Insert a newline between type and fnname */

	for (idx = fname; idx < openp; idx++) 		/* Output fnname */
	{
	    catchar(&out, at(tos,idx));
	}

	cattext(&out," PARAMS (");

	while (at(tos,idx) && at(tos,idx) !=';') 
	{
	    catchar(&out, at(tos, idx));
	    idx++;
	}
	cattext(&out,");\n\n");
    }
    overwrite_string(tos, &out);    
    pc++;
    
}



/* turn {*
   and *} into comments */

WORD(translatecomments)
{
    unsigned int idx = 0;
    string_type out;
    init_string(&out);
    
    while (at(tos, idx)) 
    {
	if (at(tos,idx) == '{' && at(tos,idx+1) =='*') 
	{
	    cattext(&out,"	/*");
	    idx+=2;
	}
	else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') 
	{
	    cattext(&out,"*/");
	    idx+=2;
	}
	else  
	{
	    catchar(&out, at(tos, idx));
	    idx++;
	}
    }


    overwrite_string(tos, &out);
    
    pc++;
    
}

/* turn everything not starting with a . into a comment */

WORD(manglecomments)
{
    unsigned int idx = 0;
    string_type out;
    init_string(&out);
    
    while (at(tos, idx)) 
    {
	if (at(tos,idx) == '\n' && at(tos,idx+1) =='*') 
	{
	    cattext(&out,"	/*");
	    idx+=2;
	}
	else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') 
	{
	    cattext(&out,"*/");
	    idx+=2;
	}
	else  
	{
	    catchar(&out, at(tos, idx));
	    idx++;
	}
    }


    overwrite_string(tos, &out);
    
    pc++;
    
}

/* Mod tos so that only lines with leading dots remain */
static void
DEFUN_VOID(outputdots)
{
    unsigned int idx = 0;
    string_type out;
    init_string(&out);
    
    while (at(tos, idx)) 
    {
	if (at(tos, idx) == '\n' && at(tos, idx+1) == '.') 
	{
	    idx += 2;
	    
	    while (at(tos, idx) && at(tos, idx)!='\n')
	    {
		if (at(tos,idx) == '{' && at(tos,idx+1) =='*') 
		{
		    cattext(&out," /*");
		    idx+=2;
		}
		else if (at(tos,idx) == '*' && at(tos,idx+1) =='}') 
		{
		    cattext(&out,"*/");
		    idx+=2;
		}
		else  
		{
		    catchar(&out, at(tos, idx));
		    idx++;
		}
	    }
	    catchar(&out,'\n');
	}
	else 
	{
	    idx++;
	}
    }	

    overwrite_string(tos, &out);
    pc++;
    
}

/* Find lines starting with . and | and put example around them on tos */
WORD(courierize)
{
    string_type out;
    unsigned int idx = 0;
    int command = 0;
    
    init_string(&out);
    
    while (at(tos, idx)) 
    {
	if (at(tos, idx) == '\n' 
	    && (at(tos, idx +1 ) == '.'
		|| at(tos,idx+1) == '|')) 
	{
	    cattext(&out,"\n@example\n");
	    do 
	    {
		idx += 2;
		
		while (at(tos, idx) && at(tos, idx)!='\n')
		{
		    if (at(tos,idx)=='{' && at(tos,idx+1) =='*') 
		    {
			cattext(&out," /*");
			idx+=2;
		    }
		    else if (at(tos,idx)=='*' && at(tos,idx+1) =='}') 
		    {
			cattext(&out,"*/");
			idx+=2;
		    }
	            else if (at(tos,idx) == '{' && !command)
		    {
			cattext(&out,"@{");
			idx++;
		    }
	            else if (at(tos,idx) == '}' && !command)
		    {
			cattext(&out,"@}");
			idx++;
		    }
		    else 
		    {
			if (at(tos,idx) == '@')
			    command = 1;
			else if (isspace(at(tos,idx)) || at(tos,idx) == '}')
			    command = 0;
			catchar(&out, at(tos, idx));
			idx++;
		    }
		    
		}
		catchar(&out,'\n');
	    }  
	    while (at(tos, idx) == '\n' 
		   && (at(tos, idx+1) == '.')
		   || (at(tos,idx+1) == '|'));
	    cattext(&out,"@end example");
	}
	else 
	{    
	    catchar(&out, at(tos, idx));
	    idx++;
	}
    }    

    overwrite_string(tos, &out);
    pc++;

    
}

/* Finds any lines starting with "o ", if there are any, then turns
   on @itemize @bullet, and @items each of them. Then ends with @end
   itemize, inplace at TOS*/


WORD(bulletize)
{
    unsigned int idx = 0;
    int on = 0;
    string_type out;
    init_string(&out);
    
    while (at(tos, idx)) {
	if (at(tos, idx) == '@' &&
	    at(tos, idx+1) == '*') 
	{
	  cattext(&out,"*");
	  idx+=2;
	}
	
else
	    if (at(tos, idx) == '\n' &&
		at(tos, idx+1) == 'o' &&
		isspace(at(tos, idx +2)))
	    {
		if (!on) 
		{
		    cattext(&out,"\n@itemize @bullet\n");
		    on = 1;
		    
		}
		cattext(&out,"\n@item\n");
		idx+=3;
	    }
	    else 
	    {
		catchar(&out, at(tos, idx));
		if (on && at(tos, idx) == '\n' &&
		    at(tos, idx+1) == '\n' &&
		    at(tos, idx+2) != 'o')
		{
		    cattext(&out, "@end itemize");
		    on = 0;
		}
		idx++;
		
	    }
	}
    if (on) 
    {
	cattext(&out,"@end itemize\n");
    }	

    delete_string(tos);
    *tos = out;
    pc++;
    
}

/* Turn <<foo>> into @code{foo} in place at TOS*/
   

WORD(do_fancy_stuff)
{
    unsigned int idx = 0;
    string_type out;
    init_string(&out);
    while (at(tos, idx)) 
    {
	if (at(tos, idx) == '<' 
	    && at(tos, idx+1) == '<'
	    && !isspace(at(tos,idx + 2))) 
	{
	    /* This qualifies as a << startup */
	    idx +=2;
	    cattext(&out,"@code{");
	    while(at(tos,idx) &&
		  at(tos,idx) != '>' )
	    {
		catchar(&out, at(tos, idx));
		idx++;
		
	    }
	    cattext(&out,"}");
	    idx+=2;
	}
	else 
	{
	    catchar(&out, at(tos, idx));
	    idx++;
	}
    }
    delete_string(tos);
    *tos = out;
    pc++;
    
}
/* A command is all upper case,and alone on a line */
static int 
DEFUN( iscommand,(ptr, idx),
      string_type *ptr AND
      unsigned int idx)
{
    unsigned int len = 0;
    while (at(ptr,idx)) {
	    if (isupper(at(ptr,idx)) || at(ptr,idx) == ' ' ||
		at(ptr,idx) == '_') 
	    {
	     len++;
	     idx++;
	 }
	    else if(at(ptr,idx) == '\n')
	    {
		if (len >4) return 1;
		return 0;
	    }
	    else return 0;
	}
    return 0;

}


DEFUN(copy_past_newline,(ptr, idx, dst),
      string_type *ptr AND
      unsigned int idx AND
      string_type *dst)
{
    while (at(ptr, idx) && at(ptr, idx) != '\n') 
    {
	catchar(dst, at(ptr, idx));
	idx++;
	
    }    
    catchar(dst, at(ptr, idx));
    idx++;
    return idx;

}

WORD(icopy_past_newline)
{
    tos++;
    init_string(tos);
    idx = copy_past_newline(ptr, idx, tos);
    pc++;	
}

/* indent
   Take the string at the top of the stack, do some prettying */




WORD(kill_bogus_lines)
{
    int sl ;
    
    int nl = 0;
    int idx = 0;
    int c;
    int dot = 0    ;
    
    string_type out;    
    init_string(&out);
    /* Drop leading nl */
    while (at(tos,idx) == '\n')
    {
	idx++;
    }
    c = idx;
    
    /* Find the last char */
    while (at(tos,idx))
    {
	idx++;
    }
    
    /* find the last non white before the nl */
    idx--;
    
    while (idx && isspace(at(tos,idx)))
     idx--;
    idx++;
    
    /* Copy buffer upto last char, but blank lines before and after
       dots don't count */
    sl = 1;

    while (c < idx)
    {
	if (at(tos,c) == '\n' 
	    && at(tos,c+1) == '\n'
	    && at(tos,c+2) == '.') 
	{
	    /* Ignore two newlines before a dot*/
	    c++;
	}
	else if (at(tos,c) == '.' && sl)
	{
	    /* remember that this line started with a dot */
	    dot=2;
	}
	else if (at(tos,c) == '\n' 
		 && at(tos,c+1) == '\n'
		 && dot)
	{
	    c++;
	    /* Ignore two newlines when last line was dot */
	}

	catchar(&out, at(tos,c));
	if (at(tos,c) == '\n')
	{
	    sl = 1;
	    
	    if (dot == 2)dot=1;else dot = 0;
	}
	
	c++;	

    }
    
    /* Append nl*/
    catchar(&out, '\n');
    pc++;
    delete_string(tos);
    *tos = out;
    
    
}

WORD(indent)
{
    string_type out;
    int tab = 0;
    int idx = 0;
    int ol =0;
    init_string(&out);
    while (at(tos,idx)) {
	    switch (at(tos,idx)) 
	    {
	      case '\n':
		cattext(&out,"\n");
		idx++;
		if (tab) 
		{
		    cattext(&out,"    ");
		}
		ol = 0;
		break;
	      case '(':
		tab++;
		if (ol == 0)
		    cattext(&out,"   ");
		idx++;
		cattext(&out,"(");
		ol = 1;
		break;
	      case ')':
		tab--;
		cattext(&out,")");
		idx++;
		ol=1;
		
		break;
	      default:
		catchar(&out,at(tos,idx));
		ol=1;
		
		idx++;
		break;
	    }
	}	

    pc++;
    delete_string(tos);
    *tos = out;

}


WORD(get_stuff_in_command)
{
    tos++;
    init_string(tos);

    while (at(ptr, idx)) {
	    if (iscommand(ptr, idx))  break;
	    idx =   copy_past_newline(ptr, idx, tos);
	}
pc++;    
}

WORD(swap)
{
    string_type t;
    
    t = tos[0];
    tos[0] = tos[-1];
    tos[-1] =t; 
    pc++;
    
}

WORD(other_dup)
{
    tos++;
    init_string(tos);
    catstr(tos, tos-1);
    pc++;
    
}



WORD(icatstr)
{
    catstr(tos-1, tos);
    delete_string(tos);
    tos--;
    pc++;
    
}

WORD(skip_past_newline)
{
    while (at(ptr,idx) 
	   && at(ptr,idx) != '\n')
     idx++;
    idx++;
    pc++;
}


WORD(internalmode)
{
    internal_mode = *(isp);
    isp--;
    pc++;
}

WORD(maybecatstr)
{
    if (internal_wanted == internal_mode) 
    {
	catstr(tos-1, tos);
    }
    delete_string(tos);
    tos--;
    pc++;
    
}

char *
DEFUN(nextword,(string, word),
      char *string AND
      char **word)
{
    char *word_start;
    int idx;
    char *dst;
    char *src;
    
    int length = 0;
    
    while (isspace(*string) || *string == '-') {
	    if (*string == '-') 
	    {
		while (*string && *string != '\n') 
		 string++;
		
	    }
	    else {
		    string++;
		}
	}
    if (!*string) return 0;
    
    word_start = string;    	
    if (*string == '"') 
    {
	string++;
	length++;
	
	while (*string != '"') 
	{
	    string++;
	    length++;
	}
    }
    else     
    {
	

	while (!isspace(*string)) 
	{
	    string++;
	    length++;
	
	}
    }
    
    *word = malloc(length + 1);

    dst = *word;
    src = word_start;


    for (idx= 0; idx < length; idx++) 
    {
    
	if (src[idx] == '\\' && src[idx+1] == 'n') 
	{
	    *dst++ = '\n';
	    idx++;
    
	}
	else *dst++ = src[idx];
    }
    *dst++ = 0;





    if(*string)    
     return string + 1;
    else 
     return 0;
    
}
dict_type *root;
dict_type *
DEFUN(lookup_word,(word),
      char *word)
{
  dict_type *ptr = root;
  while (ptr) {
      if (strcmp(ptr->word, word) == 0) return ptr;
      ptr = ptr->next;
	    
    }
  if (warning)
   fprintf(stderr,"Can't find %s\n",word);
  return 0;
    
    
}

static void DEFUN_VOID(perform)
{
  tos = stack;
    
  while (at(ptr, idx)) {
      /* It's worth looking through the command list */
      if (iscommand(ptr, idx))
      {
	unsigned int i;
	int found = 0;

	char *next;
	dict_type *word ;
		
	(void)		nextword(addr(ptr, idx), &next);


	word = lookup_word(next);


		

	if (word) 
	{
	  exec(word);
	}
	else
	{
	  if (warning)
	   fprintf(stderr,"warning, %s is not recognised\n",  next);
	  skip_past_newline();
	}
		
      }
      else skip_past_newline();

    }
}

dict_type *
DEFUN(newentry,(word),
      char *word)
{
    dict_type *new = (dict_type *)malloc(sizeof(dict_type));
    new->word = word;
    new->next = root;
    root = new;
    new->code = (stinst_type *)malloc(sizeof(stinst_type ));
    new->code_length = 1;
    new->code_end = 0;
    return new;
    
}


unsigned int
DEFUN(add_to_definition,(entry, word), 
      dict_type *entry AND
      stinst_type word)
{
    if (entry->code_end == entry->code_length) 
    {
	entry->code_length += 2;
	entry->code =
	 (stinst_type *) realloc((char *)(entry->code),
			       entry->code_length *sizeof(word_type));
    }
    entry->code[entry->code_end] = word;
    
return     entry->code_end++;  
}







void
DEFUN(add_intrinsic,(name, func),
      char *name AND
      void (*func)())
{
    dict_type *new = newentry(name);
    add_to_definition(new, func);
    add_to_definition(new, 0);
}

WORD(push_addr)
{
    

}

void
DEFUN(add_var,(name),
      char *name)
{
    dict_type *new = newentry(name);
    add_to_definition(new, push_number);
    add_to_definition(new, (stinst_type)(&(new->var)));
    add_to_definition(new,0);
    
}
      



void 
DEFUN(compile, (string), 
      char *string)

{
    int jstack[STACK];
    int *jptr = jstack;
    /* add words to the dictionary */
    char *word;
    string = nextword(string, &word);
    while (string && *string && word[0]) 
    {
	if (strcmp(word,"var")==0) 
	{
 string=nextword(string, &word);
	  
	  add_var(word);
 string=nextword(string, &word);
	}
else	
	    
	if (word[0] == ':')
	{
	    dict_type *ptr;
	    /* Compile a word and add to dictionary */
	    string = nextword(string, &word);
	    
	    ptr = newentry(word);
	    string = nextword(string, &word);
	    while (word[0] != ';' ) 
	    {
		 switch (word[0]) 
		 {
		    
		    
		   case '"':
		     /* got a string, embed magic push string
			function */
		     add_to_definition(ptr, push_text);
		     add_to_definition(ptr, (stinst_type)(word+1));
		     break;
		   case '0':
		   case '1':
		   case '2':
		   case '3':
		   case '4':
		   case '5':
		   case '6':
		   case '7':
		   case '8':
		   case '9':
		     /* Got a number, embedd the magic push number
			function */
		     add_to_definition(ptr, push_number);
		     add_to_definition(ptr, (stinst_type)atol(word));
		     break;
		   default:
		     add_to_definition(ptr, call);
		     add_to_definition(ptr, (stinst_type)lookup_word(word));
		 }

		string = nextword(string, &word);		     
	    }
	    add_to_definition(ptr,0);
	    string = nextword(string, &word);
	}
	else 
	{
	    fprintf(stderr,"syntax error at %s\n",string-1);
	}	    
    }

}

 
static void DEFUN_VOID(bang)
{
*(int *)((isp[0])) = isp[-1];
isp-=2;
pc++;

}

WORD(atsign)
{
    isp[0] = *(int *)(isp[0]);
    pc++;
}

WORD(hello)
{
    
    printf("hello\n");
    pc++;    
}



static void DEFUN(read_in, (str, file), 
	   string_type *str AND
		  FILE *file)
{
    char buff[10000];    
    unsigned int r;
    do 
    {
	r = fread(buff, 1, sizeof(buff), file);
	catbuf(str, buff, r);
    }
    while (r);
    buff[0] = 0;
    
    catbuf(str, buff,1);
    
}


static void DEFUN_VOID(usage)
{
    fprintf(stderr,"usage: -[d|i|g] <file >file\n");
    exit(33);    
}

/* There is no reliable way to declare exit.  Sometimes it returns
   int, and sometimes it returns void.  Sometimes it changes between
   OS releases.  Trying to get it declared correctly in the hosts file
   is a pointless waste of time.  */

static void
chew_exit ()
{
  exit (0);
}

int DEFUN(main,(ac,av),
int ac AND
char *av[])
{
  unsigned int i;
  string_type buffer;
  string_type pptr;

  init_string(&buffer);
  init_string(&pptr);
  init_string(stack+0);
  tos=stack+1;
  ptr = &pptr;
    
  add_intrinsic("push_text", push_text);
  add_intrinsic("!", bang);
  add_intrinsic("@", atsign);
  add_intrinsic("hello",hello);    
  add_intrinsic("skip_past_newline", skip_past_newline );
  add_intrinsic("catstr", icatstr );
  add_intrinsic("copy_past_newline", icopy_past_newline );
  add_intrinsic("dup", other_dup );
  add_intrinsic("remchar", remchar );
  add_intrinsic("get_stuff_in_command", get_stuff_in_command );
  add_intrinsic("do_fancy_stuff", do_fancy_stuff );
  add_intrinsic("bulletize", bulletize );
  add_intrinsic("courierize", courierize );
  /* If the following line gives an error, exit() is not declared in the
     ../hosts/foo.h file for this host.  Fix it there, not here!  */
  /* No, don't fix it anywhere; see comment on chew_exit--Ian Taylor.  */
  add_intrinsic("exit", chew_exit );
  add_intrinsic("swap", swap );
  add_intrinsic("outputdots", outputdots );
  add_intrinsic("paramstuff", paramstuff );
  add_intrinsic("maybecatstr", maybecatstr );
  add_intrinsic("translatecomments", translatecomments );
  add_intrinsic("kill_bogus_lines", kill_bogus_lines);
  add_intrinsic("indent", indent);
  add_intrinsic("internalmode", internalmode);
    
  /* Put a nl at the start */
  catchar(&buffer,'\n');

  read_in(&buffer, stdin); 
  remove_noncomments(&buffer, ptr);
  for (i= 1; i < ac; i++) 
  {
    if (av[i][0] == '-')
    {
      if (av[i][1] == 'f')
      {
	string_type b;
	FILE *f;
	init_string(&b);

	f  = fopen(av[i+1],"r");
	if (!f) 
	{
	  fprintf(stderr,"Can't open the input file %s\n",av[i+1]);
	  return 33;
	}
		
		  
	read_in(&b, f);
	compile(b.ptr);
	perform();	
      }
      else if (av[i][1] == 'i') 
      {
	internal_wanted = 1;
      }
      else if (av[i][1] == 'w') 
      {
	warning = 1;
      }
    }

  }      
  write_buffer(stack+0);
  return 0;
}
