mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
1348 lines
22 KiB
C
1348 lines
22 KiB
C
|
/* 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) !='/'))
|
||
|
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 EXFUN(name,(stuff));
|
||
|
|
||
|
*/
|
||
|
|
||
|
static void
|
||
|
DEFUN_VOID(exfunstuff)
|
||
|
{
|
||
|
unsigned int openp;
|
||
|
unsigned int fname;
|
||
|
unsigned int idx;
|
||
|
string_type out;
|
||
|
init_string(&out);
|
||
|
|
||
|
|
||
|
/* make sure that it's not already exfuned */
|
||
|
if(find(tos,"EXFUN") || 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++)
|
||
|
{
|
||
|
catchar(&out, at(tos,idx));
|
||
|
}
|
||
|
|
||
|
cattext(&out,"EXFUN(");
|
||
|
for (idx = fname; idx < openp; idx++)
|
||
|
{
|
||
|
catchar(&out, at(tos,idx));
|
||
|
}
|
||
|
cattext(&out,", ");
|
||
|
while (at(tos,idx) && at(tos,idx) !=';')
|
||
|
{
|
||
|
catchar(&out, at(tos, idx));
|
||
|
idx++;
|
||
|
}
|
||
|
cattext(&out,");\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;
|
||
|
|
||
|
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) == '{')
|
||
|
{
|
||
|
cattext(&out,"@{");
|
||
|
idx++;
|
||
|
}
|
||
|
else if (at(tos,idx) == '}')
|
||
|
{
|
||
|
cattext(&out,"@}");
|
||
|
idx++;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
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,"@item ");
|
||
|
idx+=3;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
catchar(&out, at(tos, idx));
|
||
|
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 linelines 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, atol(word));
|
||
|
break;
|
||
|
default:
|
||
|
add_to_definition(ptr, call);
|
||
|
add_to_definition(ptr, 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);
|
||
|
}
|
||
|
|
||
|
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 );
|
||
|
add_intrinsic("exit", exit );
|
||
|
add_intrinsic("swap", swap );
|
||
|
add_intrinsic("outputdots", outputdots );
|
||
|
add_intrinsic("exfunstuff", exfunstuff );
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
|
||
|
|