BEAV (03/10) ver 1.2 Binary File Editor, new release
Peter Reilley
pvr at wang.com
Thu Jun 6 23:26:41 AEST 1991
#! /bin/sh
# This is a shell archive. Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file". To overwrite existing
# files, type "sh file -c". You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g.. If this archive is complete, you
# will see the following message at the end:
# "End of archive 3 (of 10)."
# Contents: basic.c extend.c main.c
# Wrapped by pvr at elf on Thu Mar 14 08:16:46 1991
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f 'basic.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'basic.c'\"
else
echo shar: Extracting \"'basic.c'\" \(13944 characters\)
sed "s/^X//" >'basic.c' <<'END_OF_FILE'
X/*
X* Basic cursor motion commands.
X* The routines in this file are the basic
X* command functions for moving the cursor around on
X* the screen, setting mark, and swapping dot with
X* mark. Only moves between lines, which might make the
X* current buffer framing bad, are hard.
X*/
X
X#include "def.h"
X
Xbool move_ptr ();
Xbool forwchar ();
Xbool wind_on_dot ();
Xbool backline ();
X
Xextern char MSG_mark_set[];
Xextern char MSG_no_mark[];
Xextern char MSG_go_b_n[];
Xextern char MSG_bad_num[];
X#if RUNCHK
Xextern char ERR_bas_1[];
X#endif
Xextern char MSG_lX[];
Xextern char MSG_lO[];
Xextern char MSG_lD[];
X
X#include "lintfunc.dec"
X
Xextern bool rplc_mode;
X
X/* pvr
X* Move cursor backwards. Do the
X* right thing if the count is less than
X* 0. Error if you try to move back from
X* the beginning of the buffer.
X*/
Xbool backchar (f, n, k)
Xregister int n;
X{
X if (n < 0)
X return (forwchar (f, -n, KRANDOM));
X
X while (n--)
X {
X if (curwp -> w_unit_offset == 0)
X {
X if (!move_ptr (curwp, -(long)R_B_PER_U(curwp),
X TRUE, TRUE, TRUE))
X return (FALSE);
X
X /* step to previous unit */
X curwp -> w_unit_offset = R_CHR_PER_U(curwp) - 1;
X
X /* if before first line in window then move window */
X wind_on_dot (curwp);
X }
X else
X curwp -> w_unit_offset--;
X }
X curwp -> w_flag |= WFMODE; /* update mode line */
X return (TRUE);
X}
X
X/* pvr
X* Move cursor forwards. Do the
X* right thing if the count is less than
X* 0. Error if you try to move forward
X* from the end of the buffer.
X*/
Xbool forwchar (f, n, k)
Xregister int n;
X{
X if (n < 0)
X return (backchar (f, -n, KRANDOM));
X
X curwp -> w_flag |= WFMODE; /* update mode line */
X while (n--)
X {
X if (curwp -> w_unit_offset >= (R_CHR_PER_U(curwp) - 1))
X {
X /* move to the mext unit */
X curwp -> w_unit_offset = 0;
X
X if (!move_ptr (curwp, (long)R_B_PER_U(curwp),
X TRUE, TRUE, TRUE))
X {
X /* I am at the the end of the buffer */
X return (FALSE);
X }
X
X /* if after the last line in window then move window */
X wind_on_dot (curwp);
X }
X else /* if at last byte of buffer then do not step */
X if (DOT_POS(curwp) < BUF_SIZE(curwp))
X curwp -> w_unit_offset++;/* step within unit */
X }
X return (TRUE);
X}
X
X/* pvr
X* This function moves the specified pointer by the ammount specified
X* in 'len'. Move the dot pointer is 'dot' is true, else move
X* the window pointer. Do the fix up if 'fix' is TRUE.
X* This is a relative move if 'rel' is TRUE, else it is an
X* absolute move.
X*/
X
Xbool move_ptr (wp, len, dot, fix, rel)
XWINDOW *wp;
Xlong len;
Xbool dot, fix, rel;
X{
X A32 cur_pos, dest_pos, fix_val, last_pos;
X long rel_pos;
X A32 last_fixed_pos, align;
X LINE **line, *line_guess;
X int *l_off;
X char shift;
X bool no_limit;
X
X no_limit = TRUE;
X if (dot)
X { /* move dot position */
X l_off = &wp -> w_doto;
X line = &wp -> w_dotp;
X align = R_SIZE(wp); /* bytes -1 in a unit */
X }
X else
X { /* move window position */
X l_off = &wp -> w_loff;
X line = &wp -> w_linep;
X align = R_ALIGN(wp) - 1; /* interval of bytes to align window */
X }
X
X /* get the current position in the buffer */
X cur_pos = (*line) -> l_file_offset + *l_off;
X
X if (rel)
X {
X rel_pos = len;
X dest_pos = len + cur_pos; /* destination position */
X }
X else
X {
X rel_pos = len - cur_pos; /* relative move amount */
X dest_pos = len; /* destination position */
X }
X if (fix)
X {
X shift = wp -> w_disp_shift;
X
X /* limit at begining */
X if (dest_pos < shift)
X {
X rel_pos = shift - cur_pos;
X no_limit = FALSE;
X }
X else
X {
X /* calculate fixed up destination position */
X fix_val = dest_pos &= ~align;
X fix_val += shift;
X
X /* calculate the last position in the buffer */
X last_pos = BUF_SIZE(wp);
X if (last_pos < (last_fixed_pos = (last_pos & ~align) + shift))
X last_pos = last_fixed_pos - align - 1;
X
X /* if we are going to limit at the end of the buffer */
X if (last_pos < fix_val)
X {
X fix_val = last_pos;
X no_limit = FALSE;
X }
X rel_pos = fix_val - cur_pos;
X }
X }
X while (TRUE)
X {
X if (rel_pos < 0) /* move backward through buffer */
X {
X /* current line? */
X if (*l_off + rel_pos >= 0)
X {
X *l_off += (short) rel_pos;
X return (no_limit);
X }
X /* are we at the first line */
X if ((*line) -> l_bp -> l_size != 0)
X { /* no, so step back */
X rel_pos += *l_off;
X (*line) = (*line) -> l_bp;/* move back one line */
X *l_off = (*line) -> l_used;
X }
X else
X { /* yes, limit at the begining */
X *l_off = 0;
X return (FALSE);
X }
X }
X else /* move forward through buffer */
X {
X /* is in current line? */
X if (((A32)(*l_off) + rel_pos) < ((A32)((*line) -> l_used)))
X {
X *l_off += (short) rel_pos;
X return (no_limit);
X }
X if ((*line) -> l_fp -> l_size != 0)
X {
X rel_pos -= (*line) -> l_used - *l_off;
X *l_off = 0;
X (*line) = (*line) -> l_fp;/* move forward one line */
X }
X else
X {
X *l_off = (*line) -> l_used;/* at last line so limit it */
X return (FALSE);
X }
X }
X }
X}
X
X/* pvr
X* Move the window so that the dot is within it's
X* area. Return TRUE if window was moved.
X*/
X
Xbool wind_on_dot (wp)
X
XWINDOW * wp;
X{
X long diff, incr;
X A32 d_offs, w_start, bytes, align;
X
X /* number of bytes in a row */
X bytes = R_BYTES(wp);
X /* number of bytes to align on */
X align = R_ALIGN(wp);
X /* offset of window from start of the buffer */
X w_start = WIND_POS(wp);
X /* offset of dot from start of the buffer */
X d_offs = DOT_POS(wp);
X /* calculate the amount to move that is 1/3 of the window */
X incr = bytes * wp -> w_ntrows / 3;
X /* if dot is before first line in window */
X if ((diff = (d_offs - w_start)) < 0)/* diff used later */
X {
X move_ptr (wp, diff - incr, FALSE, TRUE, TRUE);
X wp -> w_flag |= WFHARD;
X return (TRUE);
X }
X /* if dot is after the last line in window */
X if (0 < (diff -= (wp -> w_ntrows * bytes - 1)))
X {
X if (align != 1)
X diff = (diff & ~(align - 1)) + align;
X move_ptr (wp, diff + incr, FALSE, TRUE, TRUE);
X wp -> w_flag |= WFHARD;
X return (TRUE);
X }
X /* is window aligned? */
X if (w_start != ((w_start & ~(align - 1)) + wp -> w_disp_shift))
X { /* if no then move into alignment */
X move_ptr (wp, 0L, FALSE, TRUE, TRUE);
X wp -> w_flag |= WFHARD;
X return (TRUE);
X }
X return (FALSE);
X}
X
X/* pvr
X* Go to the beginning of the
X* buffer. Setting WFHARD is conservative,
X* but almost always the case.
X*/
Xbool gotobob ()
X{
X move_ptr (curwp, 0L, TRUE, TRUE, FALSE); /* move dot */
X move_ptr (curwp, 0L, FALSE, TRUE, FALSE); /* move window */
X curwp -> w_unit_offset = 0;
X curwp -> w_flag |= WFHARD;
X return (TRUE);
X}
X
X
X/* pvr
X* Go to the end of the buffer.
X* Setting WFHARD is conservative, but
X* almost always the case.
X* Dot is one byte past the end of the buffer.
X*/
Xbool gotoeob ()
X{
X long f_off;
X long index;
X
X move_ptr (curwp, BUF_SIZE(curwp), TRUE, TRUE, FALSE); /* move dot */
X curwp -> w_unit_offset = 0;
X wind_on_dot (curwp);
X return (TRUE);
X}
X
X
X/* pvr
X* Move forward by full lines.
X* If the number of lines to move is less
X* than zero, call the backward line function to
X* actually do it. The last command controls how
X* the goal column is set.
X*/
Xbool forwline (f, n, k)
X{
X if (n < 0)
X return (backline (f, -n, KRANDOM));
X
X if (rplc_mode)
X {
X next_pat ();
X }
X else
X {
X /* move dot */
X if (!move_ptr (curwp, (long)R_BYTES(curwp) * n,
X TRUE, TRUE, TRUE))
X curwp -> w_unit_offset = 0;
X wind_on_dot (curwp);
X curwp -> w_flag |= WFMODE; /* update mode line */
X }
X return (TRUE);
X}
X
X
X/* pvr
X* This function is like "forwline", but
X* goes backwards. The scheme is exactly the same.
X* Check for arguments that are less than zero and
X* call your alternate. Figure out the new line and
X* call "movedot" to perform the motion.
X*/
Xbool backline (f, n, k)
X{
X if (n < 0)
X return (forwline (f, -n, KRANDOM));
X
X if (rplc_mode)
X {
X next_pat ();
X }
X else
X {
X if (!move_ptr (curwp, -((long)(R_BYTES(curwp) * n)),
X TRUE, TRUE, TRUE))
X curwp -> w_unit_offset = 0;
X
X /* is dot before the top of window? */
X wind_on_dot (curwp);
X curwp -> w_flag |= WFMODE; /* update mode line */
X }
X return (TRUE);
X}
X
X/* pvr
X* Scroll forward by a specified number
X* of lines, or by a full page if no argument.
X* (KRW) Added cursor (dot) weighting to force cursor
X* to same position on new page.
X*/
Xbool forwpage (f, n, k)
Xregister int n;
X{
X long mov_lines;
X
X if (rplc_mode)
X next_pat ();
X else
X {
X if (curwp -> w_ntrows <= 2)
X mov_lines = 2;
X else
X mov_lines = curwp -> w_ntrows - 2;
X
X /* check if last line is already displayed */
X if (WIND_POS(curwp) + (R_BYTES(curwp) * curwp -> w_ntrows) <
X curwp -> w_bufp -> b_linep -> l_bp -> l_file_offset +
X curwp -> w_bufp -> b_linep -> l_bp -> l_used)
X {
X move_ptr (curwp, (long)(R_BYTES(curwp) * mov_lines),
X FALSE, TRUE, TRUE);
X }
X /* move dot by same amount */
X if (!move_ptr (curwp, (long)(R_BYTES(curwp) * mov_lines),
X TRUE, TRUE, TRUE))
X curwp -> w_unit_offset = 0;
X
X curwp -> w_flag |= WFHARD;
X }
X return (TRUE);
X}
X
X
X/* pvr
X* This command is like "forwpage",
X* but it goes backwards.
X*/
Xbool backpage (f, n, k)
Xregister int n;
X{
X long mov_lines;
X
X if (rplc_mode)
X next_pat ();
X else
X {
X if (curwp -> w_ntrows <= 2)
X mov_lines = 2;
X else
X mov_lines = curwp -> w_ntrows - 2;
X
X /* move window */
X move_ptr (curwp, -(long)(R_BYTES(curwp) * mov_lines),
X FALSE, TRUE, TRUE);
X /* move dot by same amount */
X if (!move_ptr (curwp, -(long)(R_BYTES(curwp) * mov_lines),
X TRUE, TRUE, TRUE))
X curwp -> w_unit_offset = 0;
X
X curwp -> w_flag |= WFHARD;
X }
X return (TRUE);
X}
X
X
X/*
X* Set the mark in the current window
X* to the value of dot. A message is written to
X* the echo line unless we are running in a keyboard
X* macro, when it would be silly.
X*/
Xbool setmark ()
X{
X
X if (curbp == blistp) /* jam - hack to do goto/kill */
X pickone ();
X else
X {
X curwp -> w_markp = curwp -> w_dotp;
X curwp -> w_marko = curwp -> w_doto;
X if (kbdmop == NULL)
X {
X writ_echo (MSG_mark_set);
X }
X }
X return (TRUE);
X}
X
X
X/* pvr
X* Swap the values of "dot" and "mark" in
X* the current window. This is pretty easy, because
X* all of the hard work gets done by the standard routine
X* that moves the mark about. The only possible
X* error is "no mark".
X*/
Xbool swapmark ()
X{
X register short odoto;
X register LINE * odotp;
X
X if (curwp -> w_markp == NULL)
X {
X writ_echo (MSG_no_mark);
X return (FALSE);
X }
X
X odotp = curwp -> w_dotp;
X curwp -> w_dotp = curwp -> w_markp;
X curwp -> w_markp = odotp;
X odoto = curwp -> w_doto;
X curwp -> w_doto = curwp -> w_marko;
X curwp -> w_marko = odoto;
X wind_on_dot (curwp);
X curwp -> w_flag |= WFMODE; /* update mode line */
X return (TRUE);
X}
X
X/* pvr
X* Go to a specific byte position in buffer.
X* If an argument is present, then
X* it is the byte number, else prompt for a byte number
X* to use.
X*/
Xbool gotoline (f, n, k)
X{
X A32 index;
X register int s;
X char buf[32];
X
X if (f == FALSE)
X {
X
X if ((s = ereply (MSG_go_b_n, buf, sizeof (buf), 0) != TRUE))
X return (s);
X switch (R_TYPE(curwp))
X {
X case TEXT:
X case ASCII:
X case EBCDIC:
X case BINARY:
X case HEX:
X sscanf (buf, MSG_lX, &index);
X break;
X case OCTAL:
X sscanf (buf, MSG_lO, &index);
X break;
X case DECIMAL:
X sscanf (buf, MSG_lD, &index);
X break;
X#if RUNCHK
X default:
X writ_echo (ERR_bas_1);
X break;
X#endif
X }
X }
X
X if (n <= 0)
X {
X writ_echo (MSG_bad_num);
X return (FALSE);
X }
X
X move_ptr (curwp, index, TRUE, TRUE, FALSE);
X curwp -> w_unit_offset = 0;
X
X curwp -> w_flag |= WFMODE; /* update mode line */
X
X wind_on_dot (curwp);
X return (TRUE);
X}
X
END_OF_FILE
if test 13944 -ne `wc -c <'basic.c'`; then
echo shar: \"'basic.c'\" unpacked with wrong size!
fi
chmod +x 'basic.c'
# end of 'basic.c'
fi
if test -f 'extend.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'extend.c'\"
else
echo shar: Extracting \"'extend.c'\" \(12209 characters\)
sed "s/^X//" >'extend.c' <<'END_OF_FILE'
X/*
X* Extended (M-X) commands.
X*/
X#include "def.h"
X
Xextern char MSG_not_now[];
Xextern char MSG_func[];
Xextern char MSG_unk_func[];
Xextern char MSG_cmd_t_ex[];
Xextern char MSG_unk_ext[];
Xextern char MSG_d_b[];
Xextern char MSG_unbd[];
Xextern char MSG_bnd_to[];
Xextern char MSG_ins_self[];
Xextern char MSG_bnd_file[];
Xextern char MSG_bld_wall[];
Xextern char MSG_wall_head[];
Xextern char MSG_beavrc[];
Xextern char MSG_null[];
X
X#include "lintfunc.dec"
X#ifdef CUSTOMIZE
X
Xchar *flook();
X
Xstatic char *bindnm =
X{0
X}; /* file name for customized key bindings */
X#endif
X
X/*
X* This function modifies the keyboard
X* binding table, by adjusting the entries in the
X* big "bindings" array. Most of the grief deals with the
X* prompting for additional arguments. This code does not
X* work right if there is a keyboard macro floating around.
X* Should be fixed.
X*/
Xbool bindtokey ()
X{
X
X register int s;
X register char *cp;
X register SYMBOL * sp;
X register int c;
X char xname[NXNAME];
X#ifdef CUSTOMIZE
X char xname2[NXNAME];
X FILE * bindf;
X#endif
X
X if (kbdmip != NULL || kbdmop != NULL)
X {
X writ_echo (MSG_not_now);
X return (FALSE);
X }
X
X if ((s = eread (MSG_func, xname, NXNAME, EFAUTO, NULL)) != TRUE)
X return (s);
X if ((sp = symlookup (xname)) == NULL)
X {
X writ_echo (MSG_unk_func);
X return (FALSE);
X }
X
X#ifdef CUSTOMIZE
X strcpy (xname2, xname);
X#endif
X eputc (' ');
X eputc ('K');
X eputc ('e');
X eputc ('y');
X eputc (':');
X eputc (' ');
X ttflush ();
X c = getkey (); /* Read key. */
X keyname (xname, c); /* Display keyname. */
X eputs (xname);
X ttflush ();
X if (binding[c] != NULL) /* Unbind old, and */
X --binding[c] -> s_nkey;
X binding[c] = sp; /* rebind new. */
X ++sp -> s_nkey;
X sp -> s_modify |= SBOUND; /* flag as altered key binding */
X
X return (TRUE);
X}
X
X
X/*
X* Extended command. Call the message line
X* routine to read in the command name and apply autocompletion
X* to it. When it comes back, look the name up in the symbol table
X* and run the command if it is found and has the right type.
X* Print an error if there is anything wrong.
X*/
Xchar extend (f, n, k)
X{
X
X register SYMBOL * sp;
X register char s;
X char xname[NXNAME];
X
X if ((s = eread (MSG_cmd_t_ex, xname, NXNAME, EFNEW | EFAUTO, NULL)) != TRUE)
X return (s);
X if ((sp = symlookup (xname)) != NULL)
X return ((*sp -> s_funcp) (f, n, KRANDOM));
X writ_echo (MSG_unk_ext);
X return (ABORT);
X}
X
X
X/*
X* Read a key from the keyboard, and look it
X* up in the binding table. Display the name of the function
X* currently bound to the key. Say that the key is not bound
X* if it is indeed not bound, or if the type is not a
X* "builtin". This is a bit of overkill, because this is the
X* only kind of function there is.
X*/
Xbool help ()
X{
X register SYMBOL * sp;
X register int c;
X char b[20];
X char buf[80];
X
X writ_echo (MSG_d_b);
X
X c = getkey ();
X keyname (b, c);
X if ((sp = binding[c]) == NULL)
X {
X sprintf (buf, MSG_unbd, b);
X writ_echo (buf);
X }
X else
X {
X sprintf (buf, MSG_bnd_to, b, sp -> s_name);
X writ_echo (buf);
X }
X return (TRUE);
X}
X
X/*
X* Sort the lines in the buffer.
X*/
Xvoid sort_buf (b_ptr, cnt)
XBUFFER *b_ptr;
Xint cnt;
X {
X LINE *lp1, *lp2;
X bool no_swap;
X int loop1, loop2;
X
X for (loop1 = cnt; loop1 > 0; loop1--)
X {
X no_swap = TRUE;
X lp1 = b_ptr -> b_linep -> l_fp; /* point to first line */
X lp2 = lp1 -> l_fp; /* point to next line */
X for (loop2 = 0; loop2 <= loop1; loop2++)
X {
X /* compare strings and swap if necessary */
X if (0 < strcmp (&lp1 -> l_text[HFUNCCOL], &lp2 -> l_text[HFUNCCOL]))
X {
X lp1 -> l_bp -> l_fp = lp2; /* get pointer to first string */
X lp2 -> l_fp -> l_bp = lp1; /* make it point to second string */
X
X lp1 -> l_fp = lp2 -> l_fp;
X lp2 -> l_bp = lp1 -> l_bp;
X
X lp1 -> l_bp = lp2;
X lp2 -> l_fp = lp1;
X
X lp2 -> l_file_offset = lp1 -> l_file_offset;
X lp1 -> l_file_offset = lp2 -> l_file_offset + lp2 -> l_used;
X
X no_swap = FALSE;
X }
X else
X {
X /* if no swap then advance both pointers */
X lp1 = lp2;
X }
X lp2 = lp1 -> l_fp;
X }
X /* quick exit if sort is finished sooner than expected */
X if (no_swap)
X {
X return;
X }
X }
X }
X
X/*
X* This function creates a table, listing all
X* of the command keys and their current bindings, and stores
X* the table in the standard pop-op buffer (the one used by the
X* directory list command, the buffer list command, etc.). This
X* lets the editor produce it's own wall chart. The bindings to
X* "ins-self" are only displayed if there is an argument.
X*/
Xchar wallchart (f, n, k)
X{
X
X register char s;
X register int key, i, j;
X register SYMBOL * sp;
X register char *cp1;
X register char *cp2;
X char buf[64];
X WINDOW *wp;
X
X if ((s = bclear (blistp)) != TRUE)/* Clear it out. */
X return (s);
X i = 0;
X (void) strcpy (blistp -> b_fname, MSG_null);
X blistp -> b_flag = BFVIEW;
X writ_echo (MSG_bld_wall);
X sprintf (buf, MSG_wall_head);
X if (addline (buf) == FALSE)
X return;
X for (key = 0; key < NKEYS; ++key)
X {
X /* For all keys. */
X sp = binding[key];
X if (sp != NULL &&
X (f != FALSE || strcmp (sp -> s_name, MSG_ins_self) != 0))
X {
X cp1 = &buf[0];
X while (cp1 < &buf[HFUNCCOL])/* Goto column 3. */
X *cp1++ = ' ';
X if ((sp -> s_modify & SBOUND) == 0) /* comment out default binding */
X buf[0] = '#';
X cp2 = sp -> s_name; /* Add function name. */
X while (*cp1++ = *cp2++)
X ;
X cp1--;
X while (cp1 < &buf[HKEY])/* Goto column 32. */
X *cp1++ = ' ';
X keyname (&buf[HKEY], key);
X cp1 = &buf[strlen(buf)];
X while (cp1 < &buf[HKEYCODE])/* Goto column 50. */
X *cp1++ = ' ';
X sprintf (&buf[HKEYCODE], "%4X", key);
X if (addline (buf) == FALSE)
X break; /* lets go with what we have */
X i++;
X }
X }
X
X /* list unbound functions lest they get lost */
X for (j = 0; j < NSHASH; j++)
X {
X sp = symbol[j];
X while (sp != NULL)
X {
X if (sp -> s_nkey == 0)
X {
X cp1 = &buf[0];
X while (cp1 < &buf[HFUNCCOL])/* Goto column 3. */
X *cp1++ = ' ';
X buf[0] = '#';
X cp2 = sp -> s_name; /* Add function name. */
X while (*cp1++ = *cp2++)
X ;
X cp1--;
X while (cp1 < &buf[HENDCOL])
X *cp1++ = ' ';
X *cp1 = 0;
X i++;
X if (addline (buf) == FALSE)
X break; /* lets go with what we have */
X }
X sp = sp -> s_symp;
X }
X }
X sort_buf (blistp, i); /* sort buffer lines */
X popblist ();
X writ_echo (MSG_null);
X /* make new window the current window */
X wp = wheadp;
X while (wp != NULL)
X {
X if (wp -> w_bufp == blistp)
X {
X curwp = wp;
X curbp = wp -> w_bufp;
X return (TRUE);
X }
X wp = wp -> w_wndp;
X }
X return (TRUE);
X}
X
X/* check for BEAVFIL and read it in if found
X* - also, set local file variable for bindtokey for saving new defs
X* (this is some what of a hack as it only handles 'bindtokey' changes at
X* this time - also local file io !!!)
X*/
Xvoid check_extend (sfname)
X
Xchar *sfname; /* name of startup file (null if default) */
X
X{
X char *fname; /* resulting file name to execute */
X char rc_name[40]; /* fixed up name of rc file */
X char *term;
X char *getenv();
X register SYMBOL * sp;
X char funcname[NXNAME + 1];
X char keybind[NXNAME + 1];
X int keyval;
X FILE * bindf;
X
X /* look up the startup file */
X if ((sfname != NULL) && (*sfname != 0))
X fname = flook(sfname, TRUE);
X else
X {
X#ifdef UNIX
X /* hidden file under unix */
X strcpy (&rc_name[0], ".");
X strcpy (&rc_name[1], MSG_beavrc);
X
X if ((term = getenv("TERM")) != 0)
X {
X strcpy (&rc_name[strlen(rc_name)], ".");
X strcpy (&rc_name[strlen(rc_name)], term);
X }
X fname = flook(rc_name, TRUE);
X /* if fixed up name is not there then check original */
X if (fname == NULL)
X {
X /* hidden file under unix */
X strcpy (&rc_name[0], ".");
X strcpy (&rc_name[1], MSG_beavrc);
X fname = flook(rc_name, TRUE);
X }
X#else
X strcpy (rc_name, MSG_beavrc);
X fname = flook(rc_name, TRUE);
X#endif
X }
X /* if it isn't around, don't sweat it */
X if (fname == NULL)
X return;
X
X if (bindf = fopen(fname, "r"))
X {
X char buffr[80];
X char *buffp;
X
X buffp = buffr;
X while (fread (buffp++, sizeof(char), 1, bindf) == 1)
X {
X /* scanf is unhappy with commas */
X if (buffp[-1] == ',')
X buffp[-1] = '-';
X
X /* did we get a whole line */
X if (buffp[-1] == '\n')
X {
X *buffp = 0; /* terminate line */
X buffp = buffr;
X sscanf (buffr, "%s %s %x", funcname, keybind, &keyval);
X if ((buffr[0] == '#') || (keyval == 0))
X continue;
X if (sp = symlookup (funcname))
X {
X if (binding[keyval] != NULL)/* Unbind old, and */
X --binding[keyval] -> s_nkey;
X binding[keyval] = sp;/* rebind new. */
X ++sp -> s_nkey;
X sp -> s_modify |= SBOUND; /* flag as altered key binding */
X }
X }
X }
X fclose (bindf);
X }
X}
X
X/* Look up the existance of a file along the normal or PATH
X environment variable. Look first in the HOME directory if
X asked and possible
X*/
X
Xchar *flook(fname, hflag)
X
Xchar *fname; /* base file name to search for */
Xint hflag; /* Look in the HOME environment variable first? */
X
X{
X register char *home; /* path to home directory */
X register char *path; /* environmental PATH variable */
X register char *sp; /* pointer into path spec */
X register int i; /* index */
X static char fspec[128]; /* full path spec to search */
X char *getenv();
X FILE * bindf;
X
X if (hflag) {
X home = getenv("HOME");
X if (home != NULL) {
X /* build home dir file spec */
X strcpy(fspec, home);
X if (fspec[strlen(fspec) - 1] != '/')
X strcat(fspec, "/");
X strcat(fspec, fname);
X
X /* and try it out */
X if (bindf = fopen(fspec, "r"))
X {
X fclose(bindf);
X return(fspec);
X }
X }
X }
X
X /* always try the current directory first */
X if (bindf = fopen(fname, "r"))
X {
X fclose(bindf);
X return(fname);
X }
X
X /* get the PATH variable */
X path = getenv("PATH");
X if (path != NULL)
X while (*path) {
X
X /* build next possible file spec */
X sp = fspec;
X while (*path && (*path != PATHCHR))
X *sp++ = *path++;
X
X /* add a terminating dir separator if we need it */
X if (sp[-1] != SEPCHAR)
X *sp++ = SEPCHAR;
X
X *sp = 0;
X strcat(fspec, fname);
X
X /* and try it out */
X if (bindf = fopen(fspec, "r"))
X {
X fclose(bindf);
X return(fspec);
X }
X
X if (*path == PATHCHR)
X ++path;
X }
X
X return(NULL); /* no such luck */
X}
X
X
X/* interactive method for loading binding file
X* (uses above routine, obviously)
X*/
Xchar load_extend ()
X{
X
X#ifdef CUSTOMIZE
X register char s;
X char fname[NFILEN];
X
X if ((s = ereply (MSG_bnd_file, fname, NFILEN, NULL)) != TRUE)
X return (s);
X check_extend (fname);
X writ_echo (okmsg);
X#endif
X return (TRUE);
X}
X
Xint find_keyval (name)
Xchar *name;
X{
X SYMBOL * sp;
X int key;
X
X for (key = 0; key < NKEYS; ++key)
X {
X /* For all keys. */
X sp = binding[key];
X if (sp != NULL && (strcmp (sp -> s_name, name) == 0))
X return (key);
X }
X return (0);
X}
END_OF_FILE
if test 12209 -ne `wc -c <'extend.c'`; then
echo shar: \"'extend.c'\" unpacked with wrong size!
fi
chmod +x 'extend.c'
# end of 'extend.c'
fi
if test -f 'main.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'main.c'\"
else
echo shar: Extracting \"'main.c'\" \(12884 characters\)
sed "s/^X//" >'main.c' <<'END_OF_FILE'
X/*
X* BEAV is based on the source for emacs for display and keyboard handling
X* functions. The binary file handling and display formats are special
X* to BEAV. There is a full manual included in this release. There
X* are makefiles for unix and MSC 5.1 under DOS. The old Wang PC is
X* supported. This release is for unix. The def_unix.h file is the
X* header for unix and the def_dos.h file is the header for dos. Rename
X* the appropriate .h file to def.h to convert to your os.
X* I am willing to maintain BEAV and will entertain suggestions for
X* modifications and/or bug fixes. I can be reached at;
X*
X* pvr at wang.com
X*
X* or at;
X*
X* Peter Reilley
X* 19 Heritage Cir.
X* Hudson, N.H. 03051
X*/
X
X/*
X* Bug fix log
X* 3/04/91 1.20 pvr
X* Create new file with read/write permisions.
X* Fix polled mode system hog tty bug.
X* Add ANSI define for DOS.
X* Define short for D16 type.
X* Call ttclose on error exit.
X* Limit nrow and ncol to actual array size.
X* Added beavrc key binding functionallity.
X* Added delete current window command.
X* Support VT100 type function keys for binding.
X*/
X/*
X*
X* Mainline, macro commands.
X*/
X#include "def.h"
X
Xchar execute ();
Xvoid edinit ();
Xvoid flush_all ();
Xchar quit ();
Xchar ctrlg ();
Xvoid _lowercase ();
X
X
Xextern char MSG_ok[];
Xextern char MSG_main[];
Xextern char MSG_prog_name[];
Xextern char MSG_no_mod[];
Xextern char MSG_no_s_chg[];
Xextern char MSG_auto_fl[];
Xextern char MSG_quit[];
Xextern char MSG_not_now[];
Xextern char MSG_st_mac[];
Xextern char MSG_end_mac[];
Xextern char MSG_num_mod[];
Xextern char MSG_null[];
X
X#include "lintfunc.dec"
X
Xint thisflag; /* Flags, this command */
Xint lastflag; /* Flags, last command */
Xint curgoal; /* Goal column */
Xint com_line_flags; /* Count of cmd line switches */
XBUFFER * curbp; /* Current buffer */
XWINDOW * curwp; /* Current window */
XBUFFER * bheadp; /* BUFFER listhead */
XWINDOW * wheadp; /* WINDOW listhead */
XBUFFER * blistp; /* Buffer list BUFFER */
Xshort kbdm[NKBDM] = {(KCTLX | ')')}; /* Macro (fitz) */
Xshort *kbdmip; /* Input for above */
Xshort *kbdmop; /* Output for above */
Xchar pat[NPAT]; /* Pattern */
XSYMBOL * symbol[NSHASH]; /* Symbol table listhead. */
XSYMBOL * binding[NKEYS]; /* Key bindings. */
Xextern ROW_FMT hex_8_fmt;
Xextern bool ibm_pc, mem_map;
X
Xchar *okmsg = {MSG_ok};
Xint insert_mode = {TRUE};
Xint extend_buf = {FALSE};
X
Xextern bool srch_mode;
Xextern bool rplc_mode;
Xextern char *getenv ();
Xint initial_load = 0;
Xint flush_count = 0;
Xint flush_num = 500;
Xint auto_update = 0;
X
Xvoid main (argc, argv)
Xchar *argv[];
X{
X
X register int c;
X register int f;
X register int n;
X register int mflag;
X char bname[NBUFN];
X register char *p;
X extern long last_time;
X long last_second;
X
X#if MSDOS
X is_wang (); /* Check for computer type */
X#endif
X init_fmt (); /* initialize format arrays */
X strcpy (bname, MSG_main); /* Get buffer name. */
X vtinit (); /* Virtual terminal. */
X keymapinit (); /* Symbols, bindings. */
X
X if (argc == 1)
X {
X edinit (bname);
X update ();
X eerase ();
X }
X
X else
X {
X com_line_flags = 0;
X initial_load = 1;
X n = (argc - 1); /* Load them backwards */
X if (n > com_line_flags)
X {
X/* _lowercase (argv[n]); */
X makename (bname, argv[n]);
X edinit (bname); /* Buffers, windows. */
X update ();
X readin (argv[n--], 0L, MAXPOS);
X for (; n > com_line_flags; n--)
X {
X/* _lowercase (argv[n]); */
X load_file (argv[n], 0L, MAXPOS);
X }
X }
X else
X {
X edinit (bname);
X update ();
X }
X
X initial_load = 0;
X }
X
X check_extend (NULL); /* check for extended keys */
X lastflag = 0; /* Fake last flags. */
X
Xloop:
X update ();
X c = getkey ();
X if (epresf != FALSE)
X {
X eerase ();
X update ();
X }
X f = FALSE;
X n = 1;
X if (c == (KCTRL | 'U'))
X {
X /* ^U, start argument. */
X f = TRUE;
X n = 4;
X while ((c = getkey ()) == (KCTRL | 'U'))
X n *= 4;
X if ((c >= '0' && c <= '9') || c == '-')
X {
X if (c == '-')
X {
X n = 0;
X mflag = TRUE;
X }
X else
X {
X n = c - '0';
X mflag = FALSE;
X }
X while ((c = getkey ()) >= '0' && c <= '9')
X n = 10 * n + c - '0';
X if (mflag != FALSE)
X n = -n;
X }
X }
X if (kbdmip != NULL)
X {
X /* Save macro strokes. */
X if (c != (KCTLX | ')') && kbdmip > &kbdm[NKBDM - 6])
X {
X ctrlg (FALSE, 0, KRANDOM);
X goto loop;
X }
X if (f != FALSE)
X {
X *kbdmip++ = (KCTRL | 'U');
X *kbdmip++ = n;
X }
X *kbdmip++ = c;
X }
X execute (c, f, n); /* Do it. */
X goto loop;
X}
X
X
X/*
X* Command execution. Look up the binding in the the
X* binding array, and do what it says. Return a very bad status
X* if there is no binding, or if the symbol has a type that
X* is not usable (there is no way to get this into a symbol table
X* entry now). Also fiddle with the flags.
X*/
Xchar execute (c, f, n)
X{
X
X register SYMBOL * sp;
X register int status;
X
X if ((sp = binding[c]) != NULL)
X {
X thisflag = 0;
X if (sp -> s_modify & SMOD && (curbp -> b_flag & BFVIEW))
X {
X writ_echo (MSG_no_mod);
X return (ABORT);
X }
X if (sp -> s_modify & SSIZE && (curbp -> b_flag & BFSLOCK))
X {
X writ_echo (MSG_no_s_chg);
X return (ABORT);
X }
X if ((srch_mode && !(sp -> s_modify & SSRCH)) ||
X (rplc_mode && !(sp -> s_modify & SRPLC)))
X {
X ttbeep ();
X return (TRUE);
X }
X
X status = (*sp -> s_funcp) (f, n, c);
X if (sp -> s_modify & SMOD)
X flush_count++;
X
X if (flush_count >= flush_num && auto_update)
X if (!(kbdmip != NULL || kbdmop != NULL))/* not during macro */
X {
X ttbeep ();
X writ_echo (MSG_auto_fl);
X flush_all ();
X }
X lastflag = thisflag;
X return (status);
X }
X else
X bad_key (c);
X
X lastflag = 0;
X return (ABORT);
X}
X
X
X/*
X* Initialize all of the buffers
X* and windows. The buffer name is passed down as
X* an argument, because the main routine may have been
X* told to read in a file by default, and we want the
X* buffer name to be right.
X*/
Xvoid edinit (bname)
Xchar bname[];
X{
X
X register BUFFER * bp;
X register WINDOW * wp;
X
X bp = bfind (bname, TRUE); /* Text buffer. */
X blistp = bcreate (MSG_null); /* Special list buffer. */
X wp = (WINDOW *) malloc (sizeof (WINDOW));/* Initial window. */
X if (bp == NULL || wp == NULL || blistp == NULL)
X abort ();
X curbp = bp; /* Current ones. */
X wheadp = wp;
X curwp = wp;
X wp -> w_wndp = NULL; /* Initialize window. */
X wp -> w_bufp = bp;
X bp -> b_nwnd = 1; /* Displayed. */
X wp -> w_fmt_ptr = &hex_8_fmt;/* HEX 8 bit display pvr */
X wp -> w_linep = bp -> b_linep;
X wp -> w_dotp = bp -> b_linep;
X wp -> w_doto = 0; /* set dot pos pvr */
X wp -> w_markp = NULL;
X wp -> w_marko = 0;
X wp -> w_toprow = 0;
X wp -> w_ntrows = nrow - 2; /* 2 = mode, echo. */
X wp -> w_flag = WFMODE | WFHARD;/* Full. */
X wp -> w_intel_mode = FALSE; /* default is no byte swap pvr */
X wp -> w_disp_shift = 0; /* default to no byte shift pvr */
X wp -> w_loff = 0; /* starting line offset pvr */
X wp -> w_unit_offset = 0; /* dot offset from file start pvr */
X}
X
X/*
X* Flush all the dirty buffers that have file names
X* associated with them.
X*/
Xvoid flush_all ()
X{
X register BUFFER * bp,
X *savbp = curbp;
X
X for (bp = bheadp; bp != NULL; bp = bp -> b_bufp)
X if (bp -> b_fname != NULL)
X {
X curbp = bp; /* jam */
X filesave ();
X update ();
X }
X flush_count = 0;
X writ_echo (okmsg);
X curbp = savbp;
X if (blistp -> b_nwnd != 0) /* update buffer display */
X listbuffers ();
X update ();
X}
X
X
X/* call flush_all to empty the buffers
X* and quit
X*/
Xvoid flushnquit (f, n, k)
X{
X flush_all ();
X quit (f, n, k);
X}
X
X
X/*
X* Quit command. If an argument, always
X* quit. Otherwise confirm if a buffer has been
X* changed and not written out. Normally bound
X* to "C-X C-C".
X*/
Xchar quit (f, n, k)
X{
X
X register char s;
X
X if (f != FALSE /* Argument forces it. */
X || anycb () == FALSE/* All buffers clean. */
X || (s = eyesno (MSG_quit)) == TRUE)/* User says it's OK. */
X {
X
X vttidy ();
X exit (GOOD);
X }
X
X return (s);
X}
X
X
X/*
X* Begin a keyboard macro.
X* Error if not at the top level
X* in keyboard processing. Set up
X* variables and return.
X*/
Xbool ctlxlp (f, n, k)
X{
X
X if (kbdmip != NULL || kbdmop != NULL)
X {
X
X writ_echo (MSG_not_now);
X return (FALSE);
X }
X
X writ_echo (MSG_st_mac);
X kbdmip = &kbdm[0];
X return (TRUE);
X}
X
X
X/*
X* End keyboard macro. Check for
X* the same limit conditions as the
X* above routine. Set up the variables
X* and return to the caller.
X*/
Xbool ctlxrp (f, n, k)
X{
X
X if (kbdmip == NULL)
X {
X
X writ_echo (MSG_not_now);
X return (FALSE);
X }
X
X writ_echo (MSG_end_mac);
X kbdmip = NULL;
X return (TRUE);
X}
X
X
X/*
X* Execute a macro.
X* The command argument is the
X* number of times to loop. Quit as
X* soon as a command gets an error.
X* Return TRUE if all ok, else
X* FALSE.
X*/
Xbool ctlxe (f, n, k)
X{
X
X register int c;
X register int af;
X register int an;
X register int s;
X
X if (kbdmip != NULL || kbdmop != NULL)
X {
X
X writ_echo (MSG_not_now);
X return (FALSE);
X }
X
X if (n <= 0)
X return (TRUE);
X do
X {
X
X kbdmop = &kbdm[0];
X do
X {
X
X af = FALSE;
X an = 1;
X if ((c = *kbdmop++) == (KCTRL | 'U'))
X {
X
X af = TRUE;
X an = *kbdmop++;
X c = *kbdmop++;
X }
X
X s = TRUE;
X }
X while (c != (KCTLX | ')') && (s = execute (c, af, an)) == TRUE);
X kbdmop = NULL;
X }
X while (s == TRUE && --n);
X return (s);
X}
X
X
X/*
X* Abort.
X* Beep the beeper.
X* Kill off any keyboard macro,
X* etc., that is in progress.
X* Sometimes called as a routine,
X* to do general aborting of
X* stuff.
X*/
Xchar ctrlg (f, n, k)
X{
X/* ttbeep (); */
X if (kbdmip != NULL)
X {
X kbdm[0] = (KCTLX | ')');
X kbdmip = NULL;
X }
X return (ABORT);
X}
X
X
X/*
X* Display the version. All this does
X* is copy the text in the external "version" array into
X* the message system, and call the message reading code.
X* Don't call display if there is an argument.
X*/
Xchar showversion (f, n, k)
X{
Xstatic char *cp;
Xchar buf[80];
X
X cp = version;
X sprintf (buf, cp);
X writ_echo (buf);
X return (TRUE);
X}
X
X
X/* ughly to_lower function for
X* files read in under MSDOS setargv function
X*/
Xvoid _lowercase (s)
Xregister char *s;
X{
X
X#ifdef MSDOS
X for (; *s; s++)
X if (ISUPPER (*s))
X *s = TOLOWER (*s);
X#endif
X}
X
X
X/* autosave control
X*/
Xbool autosave ()
X{
X register WINDOW * wp;
X register int s,
X n;
X char buf[32];
X
X if ((s = ereply (MSG_num_mod, buf, sizeof (buf), NULL)) == TRUE)
X {
X
X n = atoi (buf);
X if (n >= 0)
X auto_update = flush_num = n;/* not 0! */
X else
X auto_update = 0;
X }
X
X for (wp = wheadp; wp; wp = wp -> w_wndp)
X if (wp -> w_bufp == curbp)
X wp -> w_flag |= WFMODE;
X return (TRUE);
X}
END_OF_FILE
if test 12884 -ne `wc -c <'main.c'`; then
echo shar: \"'main.c'\" unpacked with wrong size!
fi
chmod +x 'main.c'
# end of 'main.c'
fi
echo shar: End of archive 3 \(of 10\).
cp /dev/null ark3isdone
MISSING=""
for I in 1 2 3 4 5 6 7 8 9 10 ; do
if test ! -f ark${I}isdone ; then
MISSING="${MISSING} ${I}"
fi
done
if test "${MISSING}" = "" ; then
echo You have unpacked all 10 archives.
rm -f ark[1-9]isdone ark[1-9][0-9]isdone
else
echo You still need to unpack the following archives:
echo " " ${MISSING}
fi
## End of shell archive.
exit 0
--
>>>>>>>>>>>>>>>> Peter Reilley ..... pvr at wang.com <<<<<<<<<<<<<<<<<<<<<<<
Well, that about says it.
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