2000-02-18 03:39:52 +08:00
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/* chew
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Copyright (C) 1990-1992 Free Software Foundation, Inc.
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Contributed by steve chamberlain @cygnus
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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Yet another way of extracting documentation from source.
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No, I haven't finished it yet, but I hope you people like it better
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that the old way
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sac
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Basically, this is a sort of string forth, maybe we should call it
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struth?
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You define new words thus:
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: <newword> <oldwords> ;
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There is no
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*/
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#include "ansidecl.h"
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#include <stdio.h>
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2007-01-03 00:59:59 +08:00
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#include <stdlib.h>
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2000-02-18 03:39:52 +08:00
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#include <ctype.h>
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#define DEF_SIZE 5000
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#define STACK 50
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int internal_wanted;
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int internal_mode;
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/* Here is a string type ... */
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typedef struct buffer
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{
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char *ptr;
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unsigned int write_idx;
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unsigned int size;
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} string_type;
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static void DEFUN(init_string_with_size,(buffer, size),
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string_type *buffer AND
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unsigned int size )
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{
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buffer->write_idx = 0;
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buffer->size = size;
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buffer->ptr = malloc(size);
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}
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static void DEFUN(init_string,(buffer),
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string_type *buffer)
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{
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init_string_with_size(buffer, DEF_SIZE);
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}
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static int DEFUN(find, (str, what),
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string_type *str AND
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char *what)
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{
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unsigned int i;
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char *p;
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p = what;
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for (i = 0; i < str->write_idx && *p; i++)
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{
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if (*p == str->ptr[i])
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p++;
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else
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p = what;
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}
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return (*p == 0);
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}
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static void DEFUN(write_buffer,(buffer),
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string_type *buffer)
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{
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fwrite(buffer->ptr, buffer->write_idx, 1, stdout);
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}
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static void DEFUN(delete_string,(buffer),
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string_type *buffer)
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{
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free(buffer->ptr);
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}
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static char *DEFUN(addr, (buffer, idx),
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string_type *buffer AND
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unsigned int idx)
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{
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return buffer->ptr + idx;
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}
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static char DEFUN(at,(buffer, pos),
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string_type *buffer AND
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unsigned int pos)
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{
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if ( pos >= buffer->write_idx)
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{
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return 0;
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}
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return buffer->ptr[pos];
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}
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static void DEFUN(catchar,(buffer, ch),
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string_type *buffer AND
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char ch)
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{
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if (buffer->write_idx == buffer->size)
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{
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buffer->size *=2;
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buffer->ptr = realloc(buffer->ptr, buffer->size);
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}
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buffer->ptr[buffer->write_idx ++ ] = ch;
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}
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static void DEFUN(overwrite_string,(dst, src),
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string_type *dst AND
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string_type *src)
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{
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free(dst->ptr);
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dst->size = src->size;
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dst->write_idx = src->write_idx;
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dst->ptr = src->ptr;
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}
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static void DEFUN(catstr,(dst, src),
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string_type *dst AND
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string_type *src)
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{
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unsigned int i;
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for (i = 0; i < src->write_idx; i++)
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{
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catchar(dst, src->ptr[i]);
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}
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}
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static void DEFUN(cattext,(buffer, string),
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string_type *buffer AND
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char *string)
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{
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while (*string)
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{
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catchar(buffer, *string);
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string++;
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}
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}
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static void DEFUN(catbuf,(buffer, buf, len),
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string_type *buffer AND
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char *buf AND
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unsigned int len)
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{
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while (len--)
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{
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catchar(buffer, *buf);
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buf++;
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}
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}
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static unsigned int
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DEFUN(skip_white_and_stars,(src, idx),
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string_type *src AND
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unsigned int idx)
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{
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while (isspace(at(src,idx))
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|| (at(src,idx) == '*' && at(src,idx +1) !='/'))
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idx++;
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return idx;
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}
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/***********************************************************************/
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string_type stack[STACK];
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string_type *tos;
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unsigned int idx = 0; /* Pos in input buffer */
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string_type *ptr; /* and the buffer */
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typedef void (*stinst_type)();
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stinst_type *pc;
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stinst_type sstack[STACK];
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stinst_type *ssp = &sstack[0];
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int istack[STACK];
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int *isp = &istack[0];
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typedef int *word_type;
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struct dict_struct
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{
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char *word;
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struct dict_struct *next;
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stinst_type *code;
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int code_length;
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int code_end;
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int var;
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};
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typedef struct dict_struct dict_type;
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#define WORD(x) static void x()
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static void DEFUN(exec,(word),
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dict_type *word)
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{
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pc = word->code;
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while (*pc)
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{
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(*pc)();
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}
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}
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WORD(call)
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{
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stinst_type *oldpc = pc;
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dict_type *e;
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e = (dict_type *)(pc [1]);
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exec(e);
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pc = oldpc + 2;
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}
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WORD(remchar)
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{
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tos->write_idx--;
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pc++;
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}
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WORD(push_number)
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{
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isp++;
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pc++;
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*isp = (int)(*pc);
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pc++;
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}
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WORD(push_text)
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{
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tos++;
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init_string(tos);
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pc++;
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cattext(tos,*((char **)pc));
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pc++;
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}
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/* This function removes everything not inside comments starting on
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the first char of the line from the string, also when copying
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comments, removes blank space and leading *'s
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Blank lines are turned into one blank line
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*/
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static void
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DEFUN(remove_noncomments,(src,dst),
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string_type *src AND
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string_type *dst)
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{
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unsigned int idx = 0;
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while (at(src,idx))
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{
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/* Now see if we have a comment at the start of the line */
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if (at(src,idx) == '\n'
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&& at(src,idx+1) == '/'
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&& at(src,idx+2) == '*')
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{
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idx+=3;
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idx = skip_white_and_stars(src,idx);
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/* Remove leading dot */
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if (at(src, idx) == '.')
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idx++;
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/* Copy to the end of the line, or till the end of the
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comment */
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while (at(src, idx))
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{
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if (at(src, idx) == '\n')
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{
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/* end of line, echo and scrape of leading blanks */
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if (at(src,idx +1) == '\n')
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catchar(dst,'\n');
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catchar(dst,'\n');
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idx++;
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idx = skip_white_and_stars(src, idx);
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}
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else if (at(src, idx) == '*' && at(src,idx+1) == '/')
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{
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idx +=2 ;
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cattext(dst,"\nENDDD\n");
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break;
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}
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else
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{
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catchar(dst, at(src, idx));
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idx++;
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}
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}
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}
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else idx++;
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}
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}
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/* turn foobar name(stuff); into foobar EXFUN(name,(stuff));
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*/
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static void
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DEFUN_VOID(exfunstuff)
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{
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unsigned int openp;
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unsigned int fname;
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unsigned int idx;
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string_type out;
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init_string(&out);
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/* make sure that it's not already exfuned */
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if(find(tos,"EXFUN") || find(tos,"PROTO") || !find(tos,"(")) {
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catstr(&out,tos);
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}
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else
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{
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/*Find the open paren*/
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for (openp = 0; at(tos, openp) != '(' && at(tos,openp); openp++)
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;
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fname = openp;
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/* Step back to the fname */
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fname--;
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while (fname && isspace(at(tos, fname)))
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fname --;
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while (fname && !isspace(at(tos,fname)) && at(tos,fname) != '*')
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fname--;
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fname++;
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for (idx = 0; idx < fname; idx++)
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{
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catchar(&out, at(tos,idx));
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}
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cattext(&out,"EXFUN(");
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for (idx = fname; idx < openp; idx++)
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{
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catchar(&out, at(tos,idx));
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}
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cattext(&out,", ");
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while (at(tos,idx) && at(tos,idx) !=';')
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{
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catchar(&out, at(tos, idx));
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idx++;
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}
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cattext(&out,");\n");
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}
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overwrite_string(tos, &out);
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pc++;
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}
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/* turn {*
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and *} into comments */
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WORD(translatecomments)
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{
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unsigned int idx = 0;
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string_type out;
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init_string(&out);
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while (at(tos, idx))
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{
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if (at(tos,idx) == '{' && at(tos,idx+1) =='*')
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{
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cattext(&out," /*");
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idx+=2;
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}
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else if (at(tos,idx) == '*' && at(tos,idx+1) =='}')
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{
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cattext(&out,"*/");
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idx+=2;
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}
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else
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{
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catchar(&out, at(tos, idx));
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idx++;
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}
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}
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overwrite_string(tos, &out);
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pc++;
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}
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/* find something like
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|
|
QUICKREF
|
|
|
|
memchar ansi pure
|
|
|
|
|
|
|
|
into
|
|
|
|
merge with words on tos and output them to stderror
|
|
|
|
|
|
|
|
*/
|
|
|
|
WORD(quickref)
|
|
|
|
{
|
|
|
|
string_type *nos = tos-1;
|
|
|
|
unsigned int scan=0;
|
|
|
|
unsigned int nosscan = 0;
|
|
|
|
unsigned int idx = 0;
|
|
|
|
|
|
|
|
while (at(tos, idx))
|
|
|
|
{
|
|
|
|
if (at(tos,idx) == '~')
|
|
|
|
{
|
|
|
|
/* Skip the whitespace */
|
|
|
|
while (at(nos, nosscan) == ' ')
|
|
|
|
nosscan++;
|
|
|
|
|
|
|
|
/* Sub the next word from the nos*/
|
|
|
|
while (at(nos, nosscan) != ' ' &&
|
|
|
|
at(nos, nosscan) != 0)
|
|
|
|
{
|
|
|
|
fprintf(stderr, "%c", at(nos, nosscan));
|
|
|
|
nosscan++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
{
|
|
|
|
fprintf(stderr,"%c", at(tos, idx));
|
|
|
|
|
|
|
|
}
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
|
|
|
|
delete_string(tos);
|
|
|
|
delete_string(nos);
|
|
|
|
tos-=2;
|
|
|
|
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
|
|
|
|
turn
|
|
|
|
{* into open comment and *} into close comment
|
|
|
|
escape curlies
|
|
|
|
|
|
|
|
*/
|
|
|
|
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@smallexample\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 smallexample");
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
catchar(&out, at(tos, idx));
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
overwrite_string(tos, &out);
|
|
|
|
pc++;
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
O+ emit @itemize @bullet
|
|
|
|
OO emit @item
|
|
|
|
O- emit @end itemize
|
|
|
|
|
|
|
|
o+ emit @table @code
|
|
|
|
oo @item
|
|
|
|
o- emit @end table
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
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')
|
|
|
|
{
|
|
|
|
if (at(tos,idx+2) == '+') {
|
|
|
|
cattext(&out,"\n@table @code\n");
|
|
|
|
idx+=3;
|
|
|
|
}
|
|
|
|
else if (at(tos,idx+2) == '-') {
|
|
|
|
cattext(&out,"\n@end table\n");
|
|
|
|
idx+=3;
|
|
|
|
}
|
|
|
|
else if (isspace(at(tos,idx+2))) {
|
|
|
|
cattext(&out,"\n@item ");
|
|
|
|
idx+=3;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
catchar(&out, at(tos, idx));
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
if (at(tos, idx) == '\n' && at(tos, idx+1) == 'O')
|
|
|
|
{
|
|
|
|
if (at(tos,idx+2) == '+') {
|
|
|
|
cattext(&out,"\n@itemize @bullet\n");
|
|
|
|
idx+=3;
|
|
|
|
}
|
|
|
|
|
|
|
|
else if (at(tos,idx+2) == '-') {
|
|
|
|
cattext(&out,"\n@end itemize\n");
|
|
|
|
idx+=3;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
catchar(&out, at(tos, idx));
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
catchar(&out, at(tos, idx));
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
delete_string(tos);
|
|
|
|
*tos = out;
|
|
|
|
pc++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Turn <<foo>> into @code{foo} in place at TOS
|
|
|
|
Turn <[foo]> into @var{foo} in place at TOS
|
|
|
|
nest them too !
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
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)) || at(tos,idx+3) == '>'))
|
|
|
|
{
|
|
|
|
/* This qualifies as a << startup */
|
|
|
|
idx +=2;
|
|
|
|
cattext(&out,"@code{");
|
|
|
|
}
|
|
|
|
|
|
|
|
else if (at(tos, idx) == '<'
|
|
|
|
&& at(tos, idx+1) == '['
|
|
|
|
&& !isspace(at(tos,idx + 2)))
|
|
|
|
{
|
|
|
|
/* This qualifies as a <[ startup */
|
|
|
|
idx +=2;
|
|
|
|
cattext(&out,"@var{");
|
|
|
|
}
|
|
|
|
else 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++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
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;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Change the TOS so that all that is left is the stuff inside the
|
|
|
|
first <<foo>> .
|
|
|
|
*/
|
|
|
|
|
|
|
|
WORD(get_stuff_in_angle)
|
|
|
|
{
|
|
|
|
unsigned int idx = 0;
|
|
|
|
string_type out;
|
|
|
|
init_string(&out);
|
|
|
|
|
|
|
|
while (at(tos, idx))
|
|
|
|
{
|
|
|
|
if (at(tos,idx) == '<' && at(tos,idx+1) =='<')
|
|
|
|
{
|
|
|
|
idx+=2;
|
|
|
|
|
|
|
|
while (!(at(tos,idx) == '>' && at(tos,idx+1) == '>'))
|
|
|
|
{
|
|
|
|
catchar(&out, at(tos, idx));
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
idx++;
|
|
|
|
}
|
|
|
|
catchar(&out,'\n');
|
|
|
|
|
|
|
|
overwrite_string(tos, &out);
|
|
|
|
pc++;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
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(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;
|
|
|
|
|
|
|
|
}
|
|
|
|
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
|
|
|
|
{
|
|
|
|
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", dup );
|
|
|
|
add_intrinsic("remchar", remchar );
|
|
|
|
add_intrinsic("get_stuff_in_command", get_stuff_in_command );
|
|
|
|
add_intrinsic("get_stuff_in_angle", get_stuff_in_angle );
|
|
|
|
add_intrinsic("do_fancy_stuff", do_fancy_stuff );
|
|
|
|
add_intrinsic("bulletize", bulletize );
|
|
|
|
add_intrinsic("courierize", courierize );
|
|
|
|
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("quickref", quickref);
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
write_buffer(stack+0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|