1
0
mirror of https://github.com/rfivet/uemacs.git synced 2024-12-18 07:16:23 -05:00

Compare commits

..

4 Commits

Author SHA1 Message Date
50b727bf7f Bindable functions take a boolean as flag.
Emphasize which one always return TRUE.
Use mloutfail() to introduce consistency when a function fails with error message.
2021-08-11 17:02:19 +08:00
665d9ca1da bindable: code review and minor refactoring. 2021-08-09 15:45:01 +08:00
720603ac8e bind: code review and minor refactoring.
basic: minor reformatting.
2021-08-09 15:24:33 +08:00
eaf516110f basic: code review and minor refactoring. 2021-08-09 12:06:07 +08:00
32 changed files with 2082 additions and 2310 deletions

513
basic.c
View File

@ -1,19 +1,16 @@
/* basic.c -- implements basic.h */
#include "basic.h"
/* basic.c
*
* The routines in this file move the cursor around on the screen. They
* compute a new value for the cursor, then adjust ".". The display code
* always updates the cursor location, so only moves between lines, or
* functions that adjust the top line in the window and invalidate the
* framing, are hard.
*
* modified by Petri Kutvonen
/* The routines in this file move the cursor around on the screen. They
compute a new value for the cursor, then adjust ".". The display code
always updates the cursor location, so only moves between lines, or
functions that adjust the top line in the window and invalidate the
framing, are hard.
modified by Petri Kutvonen
*/
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include "input.h"
@ -22,340 +19,302 @@
#include "terminal.h"
#include "window.h"
#define CVMVAS 1 /* arguments to page forward/back in pages */
#define CVMVAS 1 /* arguments to page forward/back in pages */
int overlap = 0 ; /* $overlap: line overlap in forw/back page */
int curgoal ; /* $target: column goal for C-P, C-N */
int overlap = DEFAULT_OVERLAP ; /* line overlap in forw/back page */
int curgoal ; /* Goal for C-P, C-N */
/*
* This routine, given a pointer to a struct line, and the current cursor goal
* column, return the best choice for the offset. The offset is returned.
* Used by "C-N" and "C-P".
/* This routine, given a pointer to a struct line, and the current cursor
goal column, return the best choice for the offset. The offset is
returned. Used by "C-N" and "C-P".
*/
static unsigned getgoal( line_p dlp) {
int col ;
unsigned idx ;
const unsigned len = llength( dlp) ;
int col = 0 ;
const unsigned len = llength( dlp) ;
unsigned idx = 0 ;
while( idx < len) {
unicode_t c ;
unsigned width = utf8_to_unicode( dlp->l_text, idx, len, &c) ;
col = 0 ;
idx = 0 ;
while( idx < len) {
unicode_t c ;
unsigned width = utf8_to_unicode( dlp->l_text, idx, len, &c) ;
/* Take tabs, ^X and \xx hex characters into account */
if( c == '\t')
col += tabwidth - col % tabwidth ;
else if( c < 0x20 || c == 0x7F) /* ^x */
col += 2 ;
else if( c >= 0x80 && c <= 0xA0) /* \xx */
col += 3 ;
else {
int w = utf8_width( c) ; /* work around */
col += (w < 0) ? 2 : w ; /* unknown unicode width as \u */
}
/* Take tabs, ^X and \xx hex characters into account */
if( c == '\t')
col += tabwidth - col % tabwidth ;
else if( c < 0x20 || c == 0x7F)
col += 2 ;
else if( c >= 0x80 && c <= 0xA0)
col += 3 ;
else
col += 1 ;
if( col > curgoal)
break ;
else
idx += width ;
}
if( col > curgoal)
break ;
idx += width ;
}
return idx ;
return idx ;
}
/*
* Move the cursor to the beginning of the current line of active window.
/* Move the cursor to the beginning of the current line of active window. */
TBINDABLE( gotobol) {
curwp->w_doto = 0 ;
return TRUE ;
}
/* Move the cursor to the end of the current line of active window. */
TBINDABLE( gotoeol) {
curwp->w_doto = llength( curwp->w_dotp) ;
return TRUE ;
}
/* Goto the beginning of the buffer. Massive adjustment of dot. This is
considered to be hard motion; it really isn't if the original value of
dot is the same as the new value of dot. Normally bound to "M-<".
*/
boolean gotobol( int f, int n) {
curwp->w_doto = 0 ;
return TRUE ;
TBINDABLE( gotobob) {
curwp->w_dotp = lforw( curbp->b_linep) ;
curwp->w_doto = 0 ;
curwp->w_flag |= WFHARD ;
return TRUE ;
}
/*
* Move the cursor to the end of the current line of active window.
/* Move to the end of the buffer. Dot is always put at the end of the file
(ZJ). The standard screen code does most of the hard parts of update.
Bound to "M->".
*/
boolean gotoeol( int f, int n) {
curwp->w_doto = llength( curwp->w_dotp) ;
return TRUE ;
TBINDABLE( gotoeob) {
curwp->w_dotp = curbp->b_linep ;
curwp->w_doto = 0 ;
curwp->w_flag |= WFHARD ;
return TRUE ;
}
/*
* Goto the beginning of the buffer. Massive adjustment of dot. This is
* considered to be hard motion; it really isn't if the original value of dot
* is the same as the new value of dot. Normally bound to "M-<".
/* Move forward by full lines. If the number of lines to move is less than
zero, call the backward line function to actually do it. The last
command controls how the goal column is set. Bound to "C-N". No errors
are possible.
*/
boolean gotobob( int f, int n) {
curwp->w_dotp = lforw( curbp->b_linep) ;
curwp->w_doto = 0 ;
curwp->w_flag |= WFHARD ;
return TRUE ;
BBINDABLE( forwline) {
assert( f == TRUE || n == 1) ;
/* if the last command was not a line move, reset the goal column */
if( (lastflag & CFCPCN) == 0)
curgoal = getccol( FALSE) ;
/* flag this command as a line move */
thisflag |= CFCPCN ;
/* and move the point down */
if( n) {
line_p dlp = curwp->w_dotp ;
if( n > 0)
while( n && dlp != curbp->b_linep) {
dlp = lforw( dlp) ;
n -= 1 ;
}
else {
while( n && lback( dlp) != curbp->b_linep) {
dlp = lback( dlp) ;
n += 1 ;
}
}
/* resetting the current position */
curwp->w_dotp = dlp ;
curwp->w_doto = getgoal( dlp) ;
curwp->w_flag |= WFMOVE ;
}
return (n == 0) ? TRUE : FALSE ;
}
/*
* Move to the end of the buffer. Dot is always put at the end of the file
* (ZJ). The standard screen code does most of the hard parts of update.
* Bound to "M->".
/* This function is like "forwline", but goes backwards. The scheme is
exactly the same. Check for arguments that are less than zero and call
your alternate. Figure out the new line and call "movedot" to perform
the motion. No errors are possible. Bound to "C-P".
*/
boolean gotoeob( int f, int n) {
curwp->w_dotp = curbp->b_linep ;
curwp->w_doto = 0 ;
curwp->w_flag |= WFHARD ;
return TRUE ;
BBINDABLE( backline) {
assert( f == TRUE || n == 1) ;
return forwline( TRUE, -n) ;
}
/*
* Move forward by full lines. If the number of lines to move is less than
* zero, call the backward line function to actually do it. The last command
* controls how the goal column is set. Bound to "C-N". No errors are
* possible.
*/
boolean forwline( int f, int n) {
line_p dlp ;
if (n < 0)
return backline(f, -n);
/* if we are on the last line as we start....fail the command */
if (curwp->w_dotp == curbp->b_linep)
return FALSE;
/* if the last command was not a line move, reset the goal column */
if ((lastflag & CFCPCN) == 0)
curgoal = getccol(FALSE);
/* flag this command as a line move */
thisflag |= CFCPCN;
/* and move the point down */
dlp = curwp->w_dotp;
while( n && dlp != curbp->b_linep) {
dlp = lforw( dlp) ;
n -= 1 ;
}
/* reseting the current position */
curwp->w_dotp = dlp;
curwp->w_doto = getgoal(dlp);
curwp->w_flag |= WFMOVE;
return (n == 0) ? TRUE : FALSE ;
}
/*
* This function is like "forwline", but goes backwards. The scheme is exactly
* the same. Check for arguments that are less than zero and call your
* alternate. Figure out the new line and call "movedot" to perform the
* motion. No errors are possible. Bound to "C-P".
*/
boolean backline( int f, int n) {
line_p dlp ;
if (n < 0)
return forwline(f, -n);
/* if we are on the first line as we start....fail the command */
if (lback(curwp->w_dotp) == curbp->b_linep)
return FALSE;
/* if the last command was not a line move, reset the goal column */
if ((lastflag & CFCPCN) == 0)
curgoal = getccol(FALSE);
/* flag this command as a line move */
thisflag |= CFCPCN;
/* and move the point up */
dlp = curwp->w_dotp;
while( n && lback( dlp) != curbp->b_linep) {
dlp = lback( dlp) ;
n -= 1 ;
}
/* reseting the current position */
curwp->w_dotp = dlp;
curwp->w_doto = getgoal(dlp);
curwp->w_flag |= WFMOVE;
return (n == 0) ? TRUE : FALSE ;
}
/*
* Move to a particular line.
/* Move to a particular line.
*
* @n: The specified line position at the current buffer.
*/
int gotoline( int f, int n) {
/* Get an argument if one doesnt exist. */
if( f == FALSE) {
int status ;
char *arg ; /* Buffer to hold argument. */
BINDABLE( gotoline) {
/* Get an argument if one doesn't exist. */
if( f == FALSE) {
char *arg ; /* Buffer to hold argument. */
status = newmlarg( &arg, "Line to GOTO: ", 0) ;
if( status != TRUE) {
mloutstr( "(Aborted)") ;
return status ;
}
int status = newmlarg( &arg, "goto-line: ", 0) ;
if( status != TRUE)
return status ;
n = atoi( arg) ;
free( arg) ;
}
n = atoi( arg) ;
free( arg) ;
f = TRUE ;
}
/* Handle the case where the user may be passed something like this:
* em filename +
* In this case we just go to the end of the buffer.
*/
if (n == 0)
return gotoeob(f, n);
/* Handle the case where the user may be passed something like this:
* ue filename +
* In this case we just go to the end of the buffer.
*/
if( n == 0)
return gotoeob( f, n) ;
/* If a bogus argument was passed, then returns false. */
if (n < 0)
return FALSE;
/* If a bogus argument was passed, then returns false. */
if( n < 0)
return FALSE ;
/* First, we go to the begin of the buffer. */
gotobob(f, n);
return (n == 1) ? TRUE : forwline( f, n - 1) ;
/* First, we go to the begin of the buffer. */
gotobob( f, n) ;
return (n == 1) ? TRUE : forwline( TRUE, n - 1) ;
}
/*
* Scroll forward by a specified number of lines, or by a full page if no
* argument. Bound to "C-V". The "2" in the arithmetic on the window size is
* the overlap; this value is the default overlap value in ITS EMACS. Because
* this zaps the top line in the display window, we have to do a hard update.
/* Scroll forward by a specified number of lines, or by a full page if no
argument. Bound to "C-V". The "2" in the arithmetic on the window size
is the overlap; this value is the default overlap value in ITS EMACS.
Because this zaps the top line in the display window, we have to do a
hard update.
*/
boolean forwpage( int f, int n) {
line_p lp ;
TBINDABLE( forwpage) {
line_p lp ;
if (f == FALSE) {
if( f == FALSE) {
#if SCROLLCODE
if (term.t_scroll != NULL) /* $scroll == FALSE */
if (overlap == 0) /* $overlap == 0 */
n = curwp->w_ntrows * 2 / 3 ;
else
n = curwp->w_ntrows - overlap;
else
if (term.t_scroll != NULL) /* $scroll == FALSE */
if (overlap == 0) /* $overlap == 0 */
n = curwp->w_ntrows * 2 / 3 ;
else
n = curwp->w_ntrows - overlap;
else
#endif
n = curwp->w_ntrows - 2; /* Default scroll. */
n = curwp->w_ntrows - 2; /* Default scroll. */
if (n <= 0) /* Forget the overlap. */
n = 1; /* If tiny window. */
} else if (n < 0)
return backpage(f, -n);
if (n <= 0) /* Forget the overlap. */
n = 1; /* If tiny window. */
} else if( n < 0)
return backpage( f, -n) ;
#if CVMVAS
else /* Convert from pages. */
n *= curwp->w_ntrows; /* To lines. */
else /* Convert from pages. */
n *= curwp->w_ntrows; /* To lines. */
#endif
/* lp = curwp->w_linep; */
lp = curwp->w_dotp ;
while( n && lp != curbp->b_linep) {
lp = lforw( lp) ;
n -= 1 ;
}
lp = curwp->w_dotp ;
while( n && lp != curbp->b_linep) {
lp = lforw( lp) ;
n -= 1 ;
}
/* curwp->w_linep = lp; */
curwp->w_dotp = lp;
curwp->w_doto = 0;
reposition( TRUE, 0) ;
curwp->w_dotp = lp ;
curwp->w_doto = 0 ;
reposition( TRUE, 0) ; /* center at dot, always succeed */
#if SCROLLCODE
curwp->w_flag |= WFHARD | WFKILLS;
curwp->w_flag |= WFHARD | WFKILLS;
#else
curwp->w_flag |= WFHARD;
curwp->w_flag |= WFHARD;
#endif
return TRUE;
return TRUE ;
}
/*
* This command is like "forwpage", but it goes backwards. The "2", like
* above, is the overlap between the two windows. The value is from the ITS
* EMACS manual. Bound to "M-V". We do a hard update for exactly the same
* reason.
*/
boolean backpage( int f, int n) {
line_p lp ;
if (f == FALSE) { /* interactive, default n = 1 supplied */
/* in interactive mode, first move dot to top of window */
if( curwp->w_dotp != curwp->w_linep) {
curwp->w_dotp = curwp->w_linep ;
curwp->w_doto = 0 ;
/* curwp->w_flag |= WFMOVE ; */
return TRUE ;
}
/* This command is like "forwpage", but it goes backwards. The "2", like
above, is the overlap between the two windows. The value is from the
ITS EMACS manual. Bound to "M-V". We do a hard update for exactly the
same reason.
*/
TBINDABLE( backpage) {
line_p lp ;
if( f == FALSE) { /* interactive, default n = 1 supplied */
/* in interactive mode, first move dot to top of window */
if( curwp->w_dotp != curwp->w_linep) {
curwp->w_dotp = curwp->w_linep ;
curwp->w_doto = 0 ;
/* curwp->w_flag |= WFMOVE ; */
return TRUE ;
}
#if SCROLLCODE
if (term.t_scroll != NULL) /* $scroll != FALSE */
if (overlap == 0) /* $overlap == 0 */
n = curwp->w_ntrows * 2 / 3 ;
else
n = curwp->w_ntrows - overlap;
else
if (term.t_scroll != NULL) /* $scroll != FALSE */
if (overlap == 0) /* $overlap == 0 */
n = curwp->w_ntrows * 2 / 3 ;
else
n = curwp->w_ntrows - overlap;
else
#endif
n = curwp->w_ntrows - 2; /* Default scroll. */
n = curwp->w_ntrows - 2; /* Default scroll. */
if (n <= 0) /* Don't blow up if the. */
n = 1; /* Window is tiny. */
} else if (n < 0)
return forwpage(f, -n);
if (n <= 0) /* Don't blow up if the. */
n = 1; /* Window is tiny. */
} else if (n < 0)
return forwpage(f, -n);
#if CVMVAS
else /* Convert from pages. */
n *= curwp->w_ntrows; /* To lines. */
else /* Convert from pages. */
n *= curwp->w_ntrows; /* To lines. */
#endif
/* lp = curwp->w_linep; */
lp = curwp->w_dotp ;
while( n && lback( lp) != curbp->b_linep) {
lp = lback( lp) ;
n -= 1 ;
}
/* lp = curwp->w_linep; */
lp = curwp->w_dotp ;
while( n && lback( lp) != curbp->b_linep) {
lp = lback( lp) ;
n -= 1 ;
}
/* curwp->w_linep = lp; */
curwp->w_dotp = lp;
curwp->w_doto = 0;
reposition( TRUE, (f == FALSE) ? 1 : 0) ;
/* curwp->w_linep = lp; */
curwp->w_dotp = lp;
curwp->w_doto = 0;
reposition( TRUE, (f == FALSE) ? 1 : 0) ;
#if SCROLLCODE
curwp->w_flag |= WFHARD | WFINS;
curwp->w_flag |= WFHARD | WFINS;
#else
curwp->w_flag |= WFHARD;
curwp->w_flag |= WFHARD;
#endif
return TRUE;
return TRUE;
}
/*
* Set the mark in the current window to the value of "." in the window. No
* errors are possible. Bound to "M-.".
/* Set the mark in the current window to the value of "." in the window.
No errors are possible. Bound to M-. set-mark.
*/
boolean setmark( int f, int n) {
curwp->w_markp = curwp->w_dotp;
curwp->w_marko = curwp->w_doto;
mloutstr( "(Mark set)") ;
return TRUE ;
TBINDABLE( setmark) {
curwp->w_markp = curwp->w_dotp ;
curwp->w_marko = curwp->w_doto ;
mloutstr( "(Mark set)") ;
return TRUE ;
}
/*
* Swap the values of "." and "mark" in the current window. This is pretty
* easy, because all of the hard work gets done by the standard routine
* that moves the mark about. The only possible error is "no mark". Bound to
* "C-X C-X".
/* Swap the values of "." and "mark" in the current window. If no mark as
been previously set, set it. Bound to C-X C-X exchange-point-and-mark.
*/
boolean swapmark( int f, int n) {
line_p odotp ;
int odoto;
TBINDABLE( swapmark) {
line_p odotp = curwp->w_dotp ;
int odoto = curwp->w_doto ;
if( curwp->w_markp) {
curwp->w_dotp = curwp->w_markp ;
curwp->w_doto = curwp->w_marko ;
curwp->w_flag |= WFMOVE ;
}
if( curwp->w_markp == NULL) {
mloutstr( "No mark in this window") ;
return FALSE ;
}
odotp = curwp->w_dotp;
odoto = curwp->w_doto;
curwp->w_dotp = curwp->w_markp;
curwp->w_doto = curwp->w_marko;
curwp->w_markp = odotp;
curwp->w_marko = odoto;
curwp->w_flag |= WFMOVE;
return TRUE;
curwp->w_markp = odotp ;
curwp->w_marko = odoto ;
return TRUE ;
}
/* end of basic.c */

43
basic.h
View File

@ -1,35 +1,32 @@
/* basic.h -- basic commands for cursor movement in active window */
#ifndef _BASIC_H_
#define _BASIC_H_
# define _BASIC_H_
#include "retcode.h"
# include "names.h"
/*
** $overlap is the size of the line overlap when kbd calls page forw/back
** if 0, page will move by 2/3 of the window size (1/3 page overlap)
** default to 0
*/
#define DEFAULT_OVERLAP 0
extern int overlap ; /* line overlap in forw/back page */
/* $overlap is the size of the line overlap when kbd calls page forw/back
if 0, page will move by 2/3 of the window size (1/3 page overlap)
default to 0
*/
extern int overlap ; /* $overlap: line overlap in forw/back page */
/* $target (== curgoal) is the column target when doing line move */
extern int curgoal ; /* Goal for C-P previous-line, C-N next-line */
extern int curgoal ; /* $target: Goal for C-P previous-line, C-N next-line */
boolean gotobol( int f, int n) ;
boolean gotoeol( int f, int n) ;
int gotoline( int f, int n) ;
boolean gotobob( int f, int n) ;
boolean gotoeob( int f, int n) ;
boolean forwline( int f, int n) ;
boolean backline( int f, int n) ;
boolean forwpage( int f, int n) ;
boolean backpage( int f, int n) ;
boolean setmark( int f, int n) ;
boolean swapmark( int f, int n) ;
/* Bindable functions */
BBINDABLE( backline) ;
TBINDABLE( backpage) ;
BBINDABLE( forwline) ;
TBINDABLE( forwpage) ;
TBINDABLE( gotobob) ;
TBINDABLE( gotobol) ;
TBINDABLE( gotoeob) ;
TBINDABLE( gotoeol) ;
BINDABLE( gotoline) ;
TBINDABLE( setmark) ;
TBINDABLE( swapmark) ;
#endif
/* end of basic.h */

405
bind.c
View File

@ -9,24 +9,22 @@
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "estruct.h"
#include "bindable.h"
#include "buffer.h"
#include "display.h"
#include "display.h" /* upmode(), ostring() */
#include "exec.h"
#include "file.h"
#include "flook.h"
#include "input.h"
#include "line.h"
#include "mlout.h"
#include "names.h"
#include "util.h"
#include "window.h"
static int buildlist( char *mstring) ;
static char *cmdstr( unsigned c, char *seq) ;
static unsigned int getckey( int mflag) ;
@ -34,179 +32,175 @@ static unsigned int stock( char *keyname) ;
static const char *getfname( unsigned keycode, const char *failmsg) ;
static boolean cmdfail( const char *msg) {
mlwrite( "%s", msg) ;
return FALSE ;
}
/* give me some help!!!! bring up a fake buffer and read the help file into
it with view mode
*/
BINDABLE( help) {
/* give me some help!!!!
bring up a fake buffer and read the help file into it with view mode */
char *fname = NULL; /* ptr to file returned by flook() */
/* first check if we are already here */
buffer_p bp = bfind( hlpfname, FALSE, BFINVS);
if( bp == curbp)
return TRUE ;
if( bp == curbp)
return TRUE ;
if( bp == NULL) {
fname = flook( hlpfname, FALSE) ;
if( fname == NULL)
return cmdfail( "(Help file is not online)") ;
return mloutfail( "(Help file is not online)") ;
}
/* split the current window to make room for the help stuff */
if( wheadp->w_wndp == NULL /* One window */
&& splitwind( FALSE, 1) == FALSE) /* Split it */
if( wheadp->w_wndp == NULL /* One window */
&& splitwind( FALSE, 1) == FALSE) /* Split it */
return FALSE ;
if (bp == NULL) {
/* and read the stuff in */
if (getfile(fname, FALSE) == FALSE)
return FALSE;
if( bp == NULL) {
/* and read the stuff in */
if( getfile( fname, FALSE) == FALSE)
return FALSE ;
} else
swbuffer( bp) ;
swbuffer( bp) ;
/* make this window in VIEW mode, update all mode lines */
curwp->w_bufp->b_mode |= MDVIEW;
curwp->w_bufp->b_flag |= BFINVS;
upmode() ;
return TRUE;
return TRUE ;
}
static boolean invalidkey( void) {
return cmdfail( "(Invalid key sequence)") ;
return mloutfail( "(Invalid key sequence)") ;
}
/* describe the command for a certain key */
BINDABLE( deskey) {
const char cmdname[] = "describe-key" ;
char outseq[ NSTRING] ; /* output buffer for command sequence */
const char cmdname[] = "describe-key" ;
char outseq[ 8] ; /* output buffer for keystroke sequence */
/* prompt the user to type a key to describe */
mlwrite( "%s: ", cmdname) ;
mloutfmt( "%s: ", cmdname) ;
/* get the command sequence to describe
* change it to something we can print as well */
unsigned keycode = getckey( FALSE) ;
if( keycode == (unsigned) ~0)
return invalidkey() ;
if( keycode == (unsigned) ~0)
return invalidkey() ;
/* output the command sequence */
mlwrite( "%s %s: 0x%x, %s", cmdname, cmdstr( keycode, outseq), keycode,
mloutfmt( "%s %s: 0x%x, %s", cmdname, cmdstr( keycode, outseq), keycode,
getfname( keycode, "Not Bound")) ;
return TRUE ;
}
/*
* bindtokey:
/* bindtokey:
* add a new key to the key binding table
*
* int f, n; command arguments [IGNORED]
*/
BINDABLE( bindtokey) {
kbind_p ktp ; /* pointer into the command table */
char outseq[ 80] ; /* output buffer for keystroke sequence */
kbind_p ktp ; /* pointer into the command table */
char outseq[ 8] ; /* output buffer for keystroke sequence */
/* prompt the user to type in a key to bind */
mlwrite("bind-to-key: ");
mloutstr( "bind-to-key: ") ;
/* get the function name to bind it to */
nbind_p nbp = getname() ;
if( nbp == NULL) /* abort */
return FALSE ;
nbind_p nbp = getname() ;
if( nbp == NULL) /* abort */
return FALSE ;
fnp_t kfunc = nbp->n_func ;
if( kfunc == NULL)
return cmdfail( "(No such function)") ;
return mloutfail( "(No such function)") ;
mlwrite( "bind-to-key %s: ", bind_name( nbp)) ;
mloutfmt( "bind-to-key %s: ", bind_name( nbp)) ;
/* get the command sequence to bind */
boolean prefix_f = (kfunc == metafn) || (kfunc == cex) ||
(kfunc == unarg) || (kfunc == ctrlg) ;
boolean prefix_f = (kfunc == (fnp_t) metafn) || (kfunc == (fnp_t) cex) ||
(kfunc == (fnp_t) unarg) || (kfunc == (fnp_t) ctrlg) ;
int c = getckey( prefix_f) ;
if( c == ~0)
return invalidkey() ;
if( c == ~0)
return invalidkey() ;
/* change it to something we can print as well */
/* and dump it out */
ostring( cmdstr( c, outseq)) ;
/* key sequence can't be an active prefix key */
if( c == metac || c == ctlxc || c == reptc || c == abortc) {
if( (c == metac && kfunc == metafn)
|| (c == ctlxc && kfunc == cex)
|| (c == reptc && kfunc == unarg)
|| (c == abortc && kfunc == ctrlg))
return TRUE ;
if( c == metac || c == ctlxc || c == reptc || c == abortc) {
if( (c == metac && kfunc == (fnp_t) metafn)
|| (c == ctlxc && kfunc == (fnp_t) cex)
|| (c == reptc && kfunc == (fnp_t) unarg)
|| (c == abortc && kfunc == (fnp_t) ctrlg))
return TRUE ; /* be silent if keep current */
return cmdfail( "(Can't bind to active prefix)") ;
}
return mloutfail( "(Can't bind to active prefix)") ;
}
/* if the function is a prefix key */
if( prefix_f) {
if( prefix_f) {
/* remove existing binding for the prefix */
for( ktp = keytab ; ktp->k_code != 0 ; ktp++)
if( ktp->k_nbp == nbp) {
delkeybinding( ktp->k_code) ;
break ;
}
delkeybinding( ktp->k_code) ;
break ;
}
/* set the appropriate global prefix variable */
if( kfunc == metafn)
if( kfunc == (fnp_t) metafn)
metac = c ;
else if( kfunc == cex)
else if( kfunc == (fnp_t) cex)
ctlxc = c ;
if( kfunc == unarg)
if( kfunc == (fnp_t) unarg)
reptc = c ;
if( kfunc == ctrlg)
if( kfunc == (fnp_t) ctrlg)
abortc = c ;
}
ktp = setkeybinding( c, nbp) ;
if( ktp->k_code == 0)
return cmdfail( "Binding table FULL!") ;
ktp = setkeybinding( c, nbp) ;
if( ktp->k_code == 0)
return mloutfail( "Binding table FULL!") ;
return TRUE ;
return TRUE ;
}
/*
* unbindkey:
/* unbindkey:
* delete a key from the key binding table
*
* int f, n; command arguments [IGNORED]
*/
BINDABLE( unbindkey) {
char outseq[ 80] ; /* output buffer for keystroke sequence */
char outseq[ 8] ; /* output buffer for keystroke sequence */
/* prompt the user to type in a key to unbind */
mlwrite( "unbind-key: ") ;
mloutstr( "unbind-key: ") ;
/* get the command sequence to unbind */
int c = getckey( FALSE) ; /* get a command sequence */
if( c == ~0)
return invalidkey() ;
int c = getckey( FALSE) ; /* get a command sequence */
if( c == ~0)
return invalidkey() ;
/* change it to something we can print as well */
/* and dump it out */
ostring( cmdstr( c, outseq)) ;
/* prefix key sequence can't be undound, just redefined */
if( c == reptc || c == abortc)
return cmdfail( "(Can't unbind prefix)") ;
if( c == reptc || c == abortc)
return mloutfail( "(Can't unbind prefix)") ;
/* if it isn't bound, bitch */
if( delkeybinding( c) == FALSE) {
mlwrite( "(Key not bound)") ;
return FALSE ;
}
return TRUE ;
if( delkeybinding( c) == FALSE)
return mloutfail( "(Key not bound)") ;
return TRUE ;
}
/*
* does source include sub?
/* does source include sub?
*
* char *source; string to search in
* char *sub; substring to look for
@ -214,8 +208,8 @@ BINDABLE( unbindkey) {
static boolean strinc( const char *source, const char *sub) {
/* for each character in the source string */
for( ; *source ; source++) {
const char *nxtsp ; /* next ptr into source */
const char *tp ; /* ptr into substring */
const char *nxtsp ; /* next ptr into source */
const char *tp ; /* ptr into substring */
nxtsp = source;
@ -232,6 +226,7 @@ static boolean strinc( const char *source, const char *sub) {
return FALSE ;
}
/* describe bindings
* bring up a fake buffer and list the key bindings
* into it with view mode
@ -240,168 +235,166 @@ BINDABLE( desbind) {
return buildlist( "") ;
}
/* Apropos (List functions that match a substring) */
BINDABLE( apro) {
char *mstring ; /* string to match cmd names to */
char *mstring ; /* string to match cmd names to */
int status = newmlarg( &mstring, "apropos: ", 0) ;
if( status == TRUE) {
status = buildlist( mstring) ;
free( mstring) ;
} else if( status == FALSE)
status = buildlist( "") ; /* build list of all commands */
if( status == TRUE) {
status = buildlist( mstring) ;
free( mstring) ;
} else if( status == FALSE)
status = buildlist( "") ; /* build list of all commands */
return status ;
}
/*
* build a binding list (limited or full)
/* build a binding list (limited or full)
*
* char *mstring; match string if a partial list, "" matches all
*/
static int buildlist( char *mstring) {
struct window *wp; /* scanning pointer to windows */
kbind_p ktp; /* pointer into the command table */
nbind_p nptr;/* pointer into the name binding table */
struct buffer *bp; /* buffer to put binding list into */
char outseq[80]; /* output buffer for keystroke sequence */
#define PADDING 28
char outseq[ PADDING + 8] ; /* output buffer for command + keystroke */
/* split the current window to make room for the binding list */
if( wheadp->w_wndp == NULL /* One window */
&& splitwind( FALSE, 1) == FALSE) /* Split it */
return FALSE;
/* split the current window to make room for the binding list */
if( wheadp->w_wndp == NULL /* One window */
&& splitwind( FALSE, 1) == FALSE) /* Split it */
return FALSE ;
/* and get a buffer for it */
bp = bfind("*Binding list*", TRUE, 0);
/* and get a buffer for it */
buffer_p bp = bfind( "*Binding list*", TRUE, 0) ;
if( bp == NULL || bclear( bp) == FALSE)
return cmdfail( "Can't display binding list") ;
return mloutfail( "Can't display binding list") ;
/* let us know this is in progress */
mlwrite("(Building binding list)");
/* let us know this is in progress */
mloutstr( "(Building binding list)") ;
/* disconnect the current buffer */
if (--curbp->b_nwnd == 0) { /* Last use. */
curbp->b_dotp = curwp->w_dotp;
curbp->b_doto = curwp->w_doto;
curbp->b_markp = curwp->w_markp;
curbp->b_marko = curwp->w_marko;
/* disconnect the current buffer */
if( --curbp->b_nwnd == 0) { /* Last use. */
curbp->b_dotp = curwp->w_dotp ;
curbp->b_doto = curwp->w_doto ;
curbp->b_markp = curwp->w_markp ;
curbp->b_marko = curwp->w_marko ;
}
/* connect the current window to this buffer */
curbp = bp; /* make this buffer current in current window */
bp->b_mode = 0; /* no modes active in binding list */
bp->b_nwnd++; /* mark us as more in use */
wp = curwp;
wp->w_bufp = bp;
wp->w_linep = bp->b_linep;
wp->w_flag = WFHARD | WFFORCE;
wp->w_dotp = bp->b_dotp;
wp->w_doto = bp->b_doto;
wp->w_markp = NULL;
wp->w_marko = 0;
/* connect the current window to this buffer */
curbp = bp ; /* make this buffer current in current window */
bp->b_mode = 0 ; /* no modes active in binding list */
bp->b_nwnd++ ; /* mark us as more in use */
window_p wp = curwp ;
wp->w_bufp = bp ;
wp->w_linep = bp->b_linep ;
wp->w_flag = WFHARD | WFFORCE ;
wp->w_dotp = bp->b_dotp ;
wp->w_doto = bp->b_doto ;
wp->w_markp = NULL ;
wp->w_marko = 0 ;
/* build the contents of this window, inserting it line by line */
for( nptr = names ; nptr->n_func != NULL ; nptr++) {
int cpos ; /* current position to use in outseq */
/* build the contents of this window, inserting it line by line */
for( nbind_p nptr = names ; nptr->n_func != NULL ; nptr++) {
int cpos ; /* current position to use in outseq */
/* if we are executing an apropos command..... */
/* and current string doesn't include the search string */
if( *mstring && strinc( bind_name( nptr), mstring) == FALSE)
continue ;
continue ;
/* add in the command name */
mystrscpy( outseq, bind_name( nptr), sizeof outseq) ;
cpos = strlen(outseq);
cpos = strlen( outseq) ;
/* search down any keys bound to this */
for( ktp = keytab ; ktp->k_code != 0 ; ktp++) {
for( kbind_p ktp = keytab ; ktp->k_code != 0 ; ktp++) {
if( ktp->k_nbp == nptr) {
/* padd out some spaces */
while (cpos < 28)
outseq[cpos++] = ' ';
/* padd out some spaces */
while( cpos < PADDING)
outseq[ cpos++] = ' ' ;
/* add in the command sequence */
cmdstr(ktp->k_code, &outseq[cpos]);
strcat(outseq, "\n");
/* add in the command sequence */
cmdstr( ktp->k_code, &outseq[ cpos]) ;
strcat( outseq, "\n") ;
/* and add it as a line into the buffer */
if (linstr(outseq) != TRUE)
return FALSE;
/* and add it as a line into the buffer */
if( linstr( outseq) != TRUE)
return FALSE ;
cpos = 0; /* and clear the line */
cpos = 0 ; /* and clear the line */
}
}
/* if no key was bound, we need to dump it anyway */
if (cpos > 0) {
outseq[cpos++] = '\n';
outseq[cpos] = 0;
if (linstr(outseq) != TRUE)
return FALSE;
if( cpos > 0) {
outseq[ cpos++] = '\n';
outseq[ cpos] = 0;
if( linstr( outseq) != TRUE)
return FALSE ;
}
}
bp->b_mode |= MDVIEW; /* put this buffer view mode */
bp->b_flag &= ~BFCHG; /* don't flag this as a change */
wp->w_dotp = lforw(bp->b_linep); /* back to the beginning */
wp->w_doto = 0;
upmode() ; /* and update ALL mode lines */
mlwrite(""); /* clear the mode line */
return TRUE;
bp->b_mode |= MDVIEW ; /* put this buffer view mode */
bp->b_flag &= ~BFCHG ; /* don't flag this as a change */
wp->w_dotp = lforw( bp->b_linep) ; /* back to the beginning */
wp->w_doto = 0 ;
upmode() ; /* and update ALL mode lines */
mloutstr( "") ; /* clear the mode line */
return TRUE ;
}
/*
* get a command key sequence from the keyboard
/* get a command key sequence from the keyboard
*
* int mflag; going for a meta sequence?
* returns ~0 on failure
*/
static unsigned int getckey( int mflag) {
unsigned int c ; /* character fetched */
unsigned int c ; /* character fetched */
/* check to see if we are executing a command line */
if( clexec) {
char *tok = getnewtokval() ; /* get the next token */
if( tok == NULL)
c = ~0 ; /* return invalid key on failure */
else {
c = stock( tok) ;
free( tok) ;
}
} else { /* or the normal way */
if( mflag)
c = get1key() ;
else
c = getcmd() ;
}
char *tok = getnewtokval() ; /* get the next token */
if( tok == NULL)
c = ~0 ; /* return invalid key on failure */
else {
c = stock( tok) ;
free( tok) ;
}
} else { /* or the normal way */
if( mflag)
c = get1key() ;
else
c = getcmd() ;
}
return c ;
return c ;
}
/*
* execute the startup file
/* execute the startup file
*
* char *fname; name of startup file (null if default)
*/
int startup( const char *fname) {
if( !fname || *fname == 0) /* use default if empty parameter */
fname = rcfname ;
if( !fname || *fname == 0) /* use default if empty parameter */
fname = rcfname ;
fname = flook( fname, TRUE) ; /* look up the startup file */
if( fname == NULL) /* if it isn't around, don't sweat it */
return TRUE ;
fname = flook( fname, TRUE) ; /* look up the startup file */
if( fname == NULL) /* if it isn't around, don't sweat it */
return TRUE ;
return dofile( fname) ; /* otherwise, execute the sucker */
return dofile( fname) ; /* otherwise, execute the sucker */
}
/*
* change a key command to a string we can print out
/* change a key command to a string we can print out
*
* int c; sequence to translate
* char *seq; destination string for sequence
*/
static char *cmdstr( unsigned c, char *seq) {
char *ptr = seq ; /* pointer into current position in sequence */
char *ptr = seq ; /* pointer into current position in sequence */
/* apply meta sequence if needed */
if( c & META) {
@ -411,14 +404,14 @@ static char *cmdstr( unsigned c, char *seq) {
/* apply ^X sequence if needed */
if( c & CTLX) {
if( ctlxc & CTRL)
*ptr++ = '^' ;
if( ctlxc & CTL_)
*ptr++ = '^' ;
*ptr++ = ctlxc & ~PRFXMASK ;
}
/* apply control sequence if needed */
if( c & CTRL)
if( c & CTL_)
*ptr++ = '^' ;
/* apply SPEC sequence if needed */
@ -428,22 +421,24 @@ static char *cmdstr( unsigned c, char *seq) {
}
/* and output the final sequence */
ptr += unicode_to_utf8( c & ~PRFXMASK, ptr) ;
*ptr = 0 ; /* terminate the string */
return seq ;
ptr += unicode_to_utf8( c & ~PRFXMASK, ptr) ;
*ptr = 0 ; /* terminate the string */
return seq ;
}
static const char *getfname( unsigned keycode, const char *failmsg) {
/* takes a key code and gets the name of the function bound to it */
kbind_p kbp = getkeybinding( keycode) ;
if( kbp->k_code == 0)
return failmsg ;
kbind_p kbp = getkeybinding( keycode) ;
if( kbp->k_code == 0)
return failmsg ;
const char *found = bind_name( kbp->k_nbp) ;
assert( *found) ;
return found ;
const char *found = bind_name( kbp->k_nbp) ;
assert( *found) ;
return found ;
}
/* stock:
* String key name TO Command Key
*
@ -466,7 +461,7 @@ static unsigned int stock( char *keyname) {
/* a control char? */
if( *keyname == '^' && keyname[ 1] != 0) {
c |= CTRL ;
c |= CTL_ ;
++keyname ;
}
@ -477,16 +472,16 @@ static unsigned int stock( char *keyname) {
}
/* only one character left to parse */
if( !*keyname || keyname[1])
return ~0 ;
if( !*keyname || keyname[1])
return ~0 ;
/* only way to redefine ^X is by quoting binary value */
if( *keyname < 32 || *keyname == 0x7F) {
c |= CTRL ;
c |= CTL_ ;
*keyname ^= 0x40 ;
} else if( c && !(c & SPEC)
&& *keyname >= 'a' && *keyname <= 'z')
/* make sure we are not lower case (not with function keys) */
} else if( c && !(c & SPEC)
&& *keyname >= 'a' && *keyname <= 'z')
/* make sure we are not lower case (not with function keys) */
*keyname -= 32 ;
/* the final sequence... */
@ -494,19 +489,19 @@ static unsigned int stock( char *keyname) {
return c ;
}
/*
* string key name to binding name....
/* string key name to binding name....
*
* char *skey; name of key to get binding for
*/
const char *transbind( char *skey) {
static const char failmsg[] = "ERROR" ;
static const char failmsg[] = "ERROR" ;
unsigned c = stock( skey) ;
if( c == (unsigned) ~0)
return failmsg ;
else
return getfname( c, failmsg) ;
unsigned c = stock( skey) ;
if( c == (unsigned) ~0)
return failmsg ;
else
return getfname( c, failmsg) ;
}
/* end of bind.c */

6
bind.h
View File

@ -1,3 +1,5 @@
/* bind.h -- bindable functions dealing with name and key bindings */
#ifndef _BIND_H_
#define _BIND_H_
@ -14,6 +16,8 @@ BINDABLE( unbindkey) ;
int startup( const char *fname) ;
/* find a key to function association in the key to function mapping table */
const char *transbind( char *skey) ; /* by string representation of key */
const char *transbind( char *skey) ; /* by string representation of key */
#endif
/* end of bind.h */

View File

@ -3,146 +3,127 @@
#include <stdlib.h>
#include "defines.h"
#include "buffer.h"
#include "display.h"
#include "estruct.h"
#include "display.h" /* vttidy() */
#include "file.h"
#include "input.h"
#include "lock.h"
#include "mlout.h"
#include "terminal.h"
/*
* Fancy quit command, as implemented by Norm. If the any buffer has
* changed do a write on that buffer and exit emacs, otherwise simply exit.
/* Fancy quit command, as implemented by Norm. If any buffer has changed
do a write on that buffer and exit emacs, otherwise simply exit.
*/
int quickexit(int f, int n)
{
struct buffer *bp; /* scanning pointer to buffers */
struct buffer *oldcb; /* original current buffer */
int status;
BINDABLE( quickexit) {
buffer_p oldcb = curbp ; /* save in case we fail */
for( buffer_p bp = bheadp ; bp != NULL ; bp = bp->b_bufp) {
if( (bp->b_flag & (BFCHG | BFTRUNC | BFINVS)) == BFCHG) {
/* Changed, Not truncated and real buffer */
curbp = bp ; /* make that buffer cur */
mloutfmt( "(Saving %s)", bp->b_fname) ;
int status = filesave( f, n) ;
if( status != TRUE) {
curbp = oldcb ; /* restore curbp */
return status ;
}
}
}
oldcb = curbp; /* save in case we fail */
bp = bheadp;
while (bp != NULL) {
if ((bp->b_flag & BFCHG) != 0 /* Changed. */
&& (bp->b_flag & BFTRUNC) == 0 /* Not truncated P.K. */
&& (bp->b_flag & BFINVS) == 0) { /* Real. */
curbp = bp; /* make that buffer cur */
mloutfmt( "(Saving %s)", bp->b_fname) ;
#if PKCODE
#else
mloutstr( "\n") ;
#endif
if ((status = filesave(f, n)) != TRUE) {
curbp = oldcb; /* restore curbp */
return status;
}
}
bp = bp->b_bufp; /* on to the next buffer */
}
quit(f, n); /* conditionally quit */
return TRUE;
return quit( f, n) ; /* conditionally quit */
}
/*
* Quit command. If an argument, always quit. Otherwise confirm if a buffer
/* Quit command. If an argument, always quit. Otherwise confirm if a buffer
* has been changed and not written out. Normally bound to "C-X C-C".
*/
int quit(int f, int n)
{
int s;
BINDABLE( quit) {
int s ; /* status of user query */
if (f != FALSE /* Argument forces it. */
|| anycb() == FALSE /* All buffers clean. */
/* User says it's OK. */
|| (s =
mlyesno("Modified buffers exist. Leave anyway")) == TRUE) {
#if (FILOCK && BSD) || SVR4
if (lockrel() != TRUE) {
TTputc('\n');
TTputc('\r');
TTclose();
TTkclose();
exit( EXIT_FAILURE) ;
}
if( f != FALSE /* Argument forces it. */
|| anycb() == FALSE /* All buffers clean. */
/* User says it's OK. */
|| (s = mlyesno( "Modified buffers exist. Leave anyway")) == TRUE) {
#if (FILOCK && BSD) || SVR4
if( lockrel() != TRUE) {
TTputc('\n') ;
TTputc('\r') ;
TTclose() ;
TTkclose() ;
exit( EXIT_FAILURE) ;
}
#endif
vttidy();
if (f)
exit(n);
else
exit( EXIT_SUCCESS) ;
}
mloutstr( "") ;
return s;
vttidy() ;
if( f)
exit( n) ;
else
exit( EXIT_SUCCESS) ;
}
mloutstr( "") ;
return s ;
}
/*
* Begin a keyboard macro.
/* Begin a keyboard macro.
* Error if not at the top level in keyboard processing. Set up variables and
* return.
*/
int ctlxlp(int f, int n)
{
if (kbdmode != STOP) {
mloutstr( "%Macro already active") ;
return FALSE;
}
mloutstr( "(Start macro)") ;
kbdptr = &kbdm[0];
kbdend = kbdptr;
kbdmode = RECORD;
return TRUE;
BBINDABLE( ctlxlp) {
if( kbdmode != STOP)
return mloutfail( "%Macro already active") ;
mloutstr( "(Start macro)") ;
kbdptr = kbdm ;
kbdend = kbdptr ;
kbdmode = RECORD ;
return TRUE ;
}
/*
* End keyboard macro. Check for the same limit conditions as the above
/* End keyboard macro. Check for the same limit conditions as the above
* routine. Set up the variables and return to the caller.
*/
int ctlxrp(int f, int n)
{
if (kbdmode == STOP) {
mloutstr( "%Macro not active") ;
return FALSE;
}
if (kbdmode == RECORD) {
mloutstr( "(End macro)") ;
kbdmode = STOP;
}
return TRUE;
BBINDABLE( ctlxrp) {
if( kbdmode == STOP)
return mloutfail( "%Macro not active") ;
if (kbdmode == RECORD) {
mloutstr( "(End macro)") ;
kbdmode = STOP;
}
return TRUE ;
}
/*
* Execute a macro.
/* Execute a macro.
* The command argument is the number of times to loop. Quit as soon as a
* command gets an error. Return TRUE if all ok, else FALSE.
*/
int ctlxe(int f, int n)
{
if (kbdmode != STOP) {
mloutstr( "%Macro already active") ;
return FALSE;
}
if (n <= 0)
return TRUE;
kbdrep = n; /* remember how many times to execute */
kbdmode = PLAY; /* start us in play mode */
kbdptr = &kbdm[0]; /* at the beginning */
return TRUE;
BBINDABLE( ctlxe) {
if( kbdmode != STOP)
return mloutfail( "%Macro already active") ;
if( n <= 0)
return TRUE ;
kbdrep = n ; /* remember how many times to execute */
kbdmode = PLAY ; /* start us in play mode */
kbdptr = kbdm ; /* at the beginning */
return TRUE ;
}
/*
* abort:
/* abort:
* Beep the beeper. Kill off any keyboard macro, etc., that is in progress.
* Sometimes called as a routine, to do general aborting of stuff.
*/
int ctrlg( int f, int n) {
kbdmode = STOP ;
mloutfmt( "%B(Aborted)") ;
return ABORT ;
BINDABLE( ctrlg) {
kbdmode = STOP ;
mloutfmt( "%B(Aborted)") ;
return ABORT ;
}
/* end of bindable.c */

View File

@ -1,9 +1,16 @@
/* bindable.h -- misc bindable functions */
#ifndef _BINDABLE_H_
#define _BINDABLE_H_
#include "names.h"
/* functions that can be bound to keys or procedure names */
BINDABLE( quickexit) ;
BINDABLE( quit) ;
BINDABLE( ctlxlp) ;
BINDABLE( ctlxrp) ;
BINDABLE( ctlxe) ;
BINDABLE( ctrlg) ;
BBINDABLE( ctlxe) ;
BBINDABLE( ctlxlp) ;
BBINDABLE( ctlxrp) ;
BINDABLE( ctrlg) ; /* ABORT */
BINDABLE( quickexit) ;
BINDABLE( quit) ;
#endif
/* end of bindable.h */

875
buffer.c

File diff suppressed because it is too large Load Diff

120
buffer.h
View File

@ -1,74 +1,82 @@
/* buffer.h -- buffer type and functions */
#ifndef _BUFFER_H_
#define _BUFFER_H_
# define _BUFFER_H_
#include "line.h"
#include "names.h"
typedef char fname_t[ 256] ; /* file name type */
typedef char bname_t[ 16] ; /* buffer name type */
/* Text is kept in buffers. A buffer header, described below, exists for
every buffer in the system. The buffers are kept in a big list, so that
commands that search for a buffer by name can find the buffer header.
There is a safe store for the dot and mark in the header, but this is
only valid if the buffer is not being displayed (that is, if "b_nwnd" is
0). The text for the buffer is kept in a circularly linked list of
lines, with a pointer to the header line in "b_linep".
/*
* Text is kept in buffers. A buffer header, described below, exists for every
* buffer in the system. The buffers are kept in a big list, so that commands
* that search for a buffer by name can find the buffer header. There is a
* safe store for the dot and mark in the header, but this is only valid if
* the buffer is not being displayed (that is, if "b_nwnd" is 0). The text for
* the buffer is kept in a circularly linked list of lines, with a pointer to
* the header line in "b_linep".
* Buffers may be "Inactive" which means the files associated with them
* have not been read in yet. These get read in at "use buffer" time.
Buffers may be "Inactive" which means the files associated with them
have not been read in yet. These get read in at "use buffer" time.
*/
typedef char fname_t[ 256] ; /* file name type */
typedef char bname_t[ 16] ; /* buffer name type */
typedef struct buffer {
struct buffer *b_bufp; /* Link to next struct buffer */
line_p b_dotp ; /* Link to "." struct line structure */
line_p b_markp ; /* The same as the above two, */
line_p b_linep ; /* Link to the header struct line */
int b_doto; /* Offset of "." in above struct line */
int b_marko; /* but for the "mark" */
int b_mode; /* editor mode of this buffer */
char b_active; /* window activated flag */
char b_nwnd; /* Count of windows on buffer */
char b_flag; /* Flags */
fname_t b_fname ; /* File name */
bname_t b_bname ; /* Buffer name */
struct buffer *b_bufp ; /* Link to next struct buffer */
line_p b_dotp ; /* Link to "." struct line structure */
line_p b_markp ; /* The same as the above two, */
line_p b_linep ; /* Link to the header struct line */
int b_doto ; /* Offset of "." in above struct line */
int b_marko ; /* but for the "mark" */
int b_mode ; /* editor mode of this buffer */
char b_active ; /* window activated flag */
char b_nwnd ; /* Count of windows on buffer */
char b_flag ; /* Flags */
fname_t b_fname ; /* File name */
bname_t b_bname ; /* Buffer name */
} *buffer_p ;
extern buffer_p curbp ; /* Current buffer */
extern buffer_p bheadp ; /* Head of list of buffers */
extern buffer_p blistp ; /* Buffer for C-X C-B */
extern buffer_p curbp ; /* Current buffer */
extern buffer_p bheadp ; /* Head of list of buffers */
extern buffer_p blistp ; /* Buffer for C-X C-B */
#define BFINVS 0x01 /* Internal invisable buffer */
#define BFCHG 0x02 /* Changed since last write */
#define BFTRUNC 0x04 /* buffer was truncated when read */
#define BFINVS 0x01 /* Internal invisable buffer */
#define BFCHG 0x02 /* Changed since last write */
#define BFTRUNC 0x04 /* buffer was truncated when read */
/* mode flags */
#define NUMMODES 9 /* # of defined modes */
/* mode flags */
#define NUMMODES 9 /* # of defined modes */
#define MDWRAP 0x0001 /* word wrap */
#define MDCMOD 0x0002 /* C indentation and fence match */
#define MDEXACT 0x0004 /* Exact matching for searches */
#define MDVIEW 0x0008 /* read-only buffer */
#define MDOVER 0x0010 /* overwrite mode */
#define MDMAGIC 0x0020 /* regular expresions in search */
#define MDASAVE 0x0040 /* auto-save mode */
#define MDUTF8 0x0080 /* utf8 mode */
#define MDDOS 0x0100 /* CRLF eol mode */
#define MDWRAP 0x0001 /* word wrap */
#define MDCMOD 0x0002 /* C indentation and fence match */
#define MDEXACT 0x0004 /* Exact matching for searches */
#define MDVIEW 0x0008 /* read-only buffer */
#define MDOVER 0x0010 /* overwrite mode */
#define MDMAGIC 0x0020 /* regular expresions in search */
#define MDASAVE 0x0040 /* auto-save mode */
#define MDUTF8 0x0080 /* utf8 mode */
#define MDDOS 0x0100 /* CRLF eol mode */
extern const char *modename[ NUMMODES] ; /* text names of modes */
extern int gmode ; /* global editor mode */
extern const char *modename[] ; /* text names of modes */
extern int gmode ; /* global editor mode */
/* Bindable functions */
BINDABLE( killbuffer) ;
BINDABLE( listbuffers) ;
BINDABLE( namebuffer) ;
BINDABLE( nextbuffer) ;
BINDABLE( unmark) ;
BINDABLE( usebuffer) ;
boolean anycb( void) ; /* Any changed buffer? */
int bclear( buffer_p bp) ; /* empty buffer */
int swbuffer( buffer_p bp) ; /* switch to buffer, make it current */
int zotbuf( buffer_p bp) ; /* remove buffer */
int usebuffer( int f, int n) ;
int nextbuffer( int f, int n) ;
int swbuffer( buffer_p bp) ;
int killbuffer( int f, int n) ;
int zotbuf( buffer_p bp) ;
int namebuffer( int f, int n) ;
int listbuffers( int f, int n) ;
int anycb( void) ;
int bclear( buffer_p bp) ;
int unmark( int f, int n) ;
/* Lookup a buffer by name. */
buffer_p bfind( const char *bname, int cflag, int bflag) ;
/* Lookup a buffer by name. If not found and create_f is TRUE then create
it with flags set.
*/
buffer_p bfind( const char *bname, boolean create_f, int flags) ;
#endif
/* end of buffer.h */

View File

@ -1,17 +1,14 @@
/* display.c -- implements display.h */
#include "display.h"
#define REVSTA 1 /* Status line appears in reverse video */
/* display.c
*
* The functions in this file handle redisplay. There are two halves, the
* ones that update the virtual display screen, and the ones that make the
* physical display screen the same as the virtual display screen. These
* functions use hints that are left in the windows by the commands.
*
* Modified by Petri Kutvonen
/* The functions in this file handle redisplay. There are two halves, the
ones that update the virtual display screen, and the ones that make the
physical display screen the same as the virtual display screen. These
functions use hints that are left in the windows by the commands.
Modified by Petri Kutvonen
*/
#include <errno.h>
@ -251,40 +248,37 @@ static void vteeol( void) {
vcp[ vtcol++] = ' ' ;
}
/*
* upscreen:
/* upscreen:
* user routine to force a screen update
* always finishes complete update
*/
int upscreen(int f, int n)
{
update(TRUE);
return TRUE;
BINDABLE( upscreen) {
update( TRUE) ;
return TRUE ;
}
#if SCROLLCODE
static int scrflags;
#endif
/*
* Make sure that the display is right. This is a three part process. First,
* scan through all of the windows looking for dirty ones. Check the framing,
* and refresh the screen. Second, make sure that "currow" and "curcol" are
* correct for the current window. Third, make the virtual and physical
* screens the same.
*
* int force; force update past type ahead?
/* Make sure that the display is right. This is a three part process.
First, scan through all of the windows looking for dirty ones. Check
the framing, and refresh the screen. Second, make sure that "currow"
and "curcol" are correct for the current window. Third, make the
virtual and physical screens the same.
boolean force_f ; force update past type ahead?
*/
int update(int force)
{
int update( boolean force_f) {
struct window *wp;
#if TYPEAH && ! PKCODE
if (force == FALSE && typahead())
if( force_f == FALSE && typahead())
return TRUE;
#endif
#if VISMAC == 0
if (force == FALSE && kbdmode == PLAY)
if( force_f == FALSE && kbdmode == PLAY)
return TRUE;
#endif
@ -359,7 +353,7 @@ int update(int force)
updgar();
/* update the virtual screen to the physical screen */
updupd(force);
updupd( force_f) ;
/* update the cursor and flush the buffers */
movecursor(currow, curcol - lbound);

View File

@ -1,10 +1,12 @@
/* display.h -- display functionality */
#ifndef _DISPLAY_H_
#define _DISPLAY_H_
# define _DISPLAY_H_
#include <stdarg.h>
# include <stdarg.h>
#include "estruct.h"
#include "utf8.h"
# include "estruct.h"
# include "names.h" /* BINDABLE() */
# include "utf8.h" /* unicode_t */
extern int mpresf ; /* Stuff in message line */
extern int scrollcount ; /* number of lines to scroll */
@ -13,11 +15,13 @@ extern int disinp ; /* display input characters (echo) */
extern int gfcolor ; /* global forgrnd color (white) */
extern int gbcolor ; /* global backgrnd color (black) */
/* Bindable functions */
BINDABLE( upscreen) ;
void vtinit( void) ;
void vtfree( void) ;
void vttidy( void) ;
int upscreen( int f, int n) ;
int update( int force) ;
int update( boolean force_f) ;
void updpos( void) ;
void upddex( void) ;
void updgar( void) ;
@ -33,13 +37,13 @@ void echos( const char *s) ;
void rubout( void) ;
void getscreensize( int *widthp, int *heightp) ;
#if UNIX
#include <signal.h>
#ifdef SIGWINCH
# if UNIX
# include <signal.h>
# ifdef SIGWINCH
extern int chg_width, chg_height ;
void sizesignal( int signr) ;
# endif
# endif
#endif
#endif
#endif
/* end of display.h */

38
eval.c
View File

@ -1,9 +1,7 @@
/* eval.c -- implements eval.h */
#include "eval.h"
/* eval.c
*
* Expression evaluation functions
/* Expression evaluation functions
*
* written 1986 by Daniel Lawrence
* modified by Petri Kutvonen
@ -210,7 +208,7 @@ static struct {
{ "and", UFAND | DYNAMIC }, /* logical and */
{ "asc", UFASCII | MONAMIC }, /* char to integer conversion */
{ "ban", UFBAND | DYNAMIC }, /* bitwise and 9-10-87 jwm */
{ "bin", UFBIND | MONAMIC }, /* loopup what function name is bound to a key */
{ "bin", UFBIND | MONAMIC }, /* look up function name bound to key */
{ "bno", UFBNOT | MONAMIC }, /* bitwise not */
{ "bor", UFBOR | DYNAMIC }, /* bitwise or 9-10-87 jwm */
{ "bxo", UFBXOR | DYNAMIC }, /* bitwise xor 9-10-87 jwm */
@ -797,14 +795,13 @@ static char *gtenv( char *vname) {
return errorm ;
}
/*
* set a variable
/* set a variable
*
* int f; default flag
* int n; numeric arg (can overide prompted value)
*/
int setvar(int f, int n)
{
BINDABLE( setvar) {
int status; /* status return */
struct variable_description vd; /* variable num/type */
char var[NVSIZE + 2]; /* name of variable to fetch %1234567890\0 */
@ -1466,28 +1463,25 @@ static void mlforce( char *s) {
discmd = oldcmd; /* and restore the original setting */
}
/*
* This function simply clears the message line,
* mainly for macro usage
/* This function simply clears the message line, mainly for macro usage
*
* int f, n; arguments ignored
*/
int clrmes( int f, int n) {
TBINDABLE( clrmes) {
mlforce( "") ;
return TRUE ;
}
/*
* This function writes a string on the message line
* mainly for macro usage
*
* int f, n; arguments ignored
*/
int writemsg( int f, int n) {
int status ;
char *buf ; /* buffer to receive message into */
status = newmlarg( &buf, "Message to write: ", 0) ;
/* This function writes a string on the message line mainly for macro usage
*
* int f, n; arguments ignored
*/
BINDABLE( writemsg) {
char *buf ; /* buffer to receive message into */
int status = newmlarg( &buf, "write-message: ", 0) ;
if( status == TRUE) {
/* write the message out */
mlforce( buf) ;

28
eval.h
View File

@ -1,29 +1,33 @@
/* eval.h -- variables and operands evaluation */
#ifndef _EVAL_H_
#define _EVAL_H_
# define _EVAL_H_
#include "names.h"
#define DEBUGM 1 /* $debug triggers macro debugging */
#define DEBUGM 1 /* $debug triggers macro debugging */
#if DEBUGM
# if DEBUGM
int mdbugout( char *fmt, ...) ;
#endif
# endif
extern int macbug ; /* macro debuging flag */
extern int cmdstatus ; /* last command status */
extern int rval ; /* return value of a subprocess */
extern long envram ; /* # of bytes current in use by malloc */
extern int macbug ; /* macro debuging flag */
extern int cmdstatus ; /* last command status */
extern int rval ; /* return value of a subprocess */
extern long envram ; /* # of bytes current in use by malloc */
int readfirst_f( void) ;
int is_it_cmd( char *token) ;
void varinit( void) ;
int setvar( int f, int n) ;
const char *getval( char *token) ;
int stol( char *val) ;
char *mklower( char *str) ;
int clrmes( int f, int n) ;
int writemsg( int f, int n) ;
/* Bindable functions */
TBINDABLE( clrmes) ;
BINDABLE( setvar) ;
BINDABLE( writemsg) ;
#endif
/* end of eval.h */

815
exec.c

File diff suppressed because it is too large Load Diff

114
exec.h
View File

@ -1,69 +1,65 @@
/* exec.h -- bindable functions to execute functions, macros and procedures */
#ifndef _EXEC_H_
#define _EXEC_H_
# define _EXEC_H_
#include "retcode.h"
#include "names.h"
extern boolean clexec ; /* command line execution flag */
#define PROC 1 /* named procedures */
#if PROC
int storeproc( int f, int n) ;
int execproc( int f, int n) ;
#endif
extern boolean clexec ; /* command line execution flag */
int namedcmd( int f, int n) ;
int execcmd( int f, int n) ;
int dofile( const char *fname) ;
void gettoken( char *tok, int maxtoksize) ;
boolean gettokval( char *tok, int maxtoksize) ;
char *getnewtokval( void) ;
int storemac( int f, int n) ;
int execbuf( int f, int n) ;
int execfile( int f, int n) ;
int dofile( const char *fname) ;
int cbuf1( int f, int n) ;
int cbuf2( int f, int n) ;
int cbuf3( int f, int n) ;
int cbuf4( int f, int n) ;
int cbuf5( int f, int n) ;
int cbuf6( int f, int n) ;
int cbuf7( int f, int n) ;
int cbuf8( int f, int n) ;
int cbuf9( int f, int n) ;
int cbuf10( int f, int n) ;
int cbuf11( int f, int n) ;
int cbuf12( int f, int n) ;
int cbuf13( int f, int n) ;
int cbuf14( int f, int n) ;
int cbuf15( int f, int n) ;
int cbuf16( int f, int n) ;
int cbuf17( int f, int n) ;
int cbuf18( int f, int n) ;
int cbuf19( int f, int n) ;
int cbuf20( int f, int n) ;
int cbuf21( int f, int n) ;
int cbuf22( int f, int n) ;
int cbuf23( int f, int n) ;
int cbuf24( int f, int n) ;
int cbuf25( int f, int n) ;
int cbuf26( int f, int n) ;
int cbuf27( int f, int n) ;
int cbuf28( int f, int n) ;
int cbuf29( int f, int n) ;
int cbuf30( int f, int n) ;
int cbuf31( int f, int n) ;
int cbuf32( int f, int n) ;
int cbuf33( int f, int n) ;
int cbuf34( int f, int n) ;
int cbuf35( int f, int n) ;
int cbuf36( int f, int n) ;
int cbuf37( int f, int n) ;
int cbuf38( int f, int n) ;
int cbuf39( int f, int n) ;
int cbuf40( int f, int n) ;
/* Bindable functions */
BINDABLE( execbuf) ;
BINDABLE( execcmd) ;
BINDABLE( execfile) ;
BINDABLE( execproc) ;
BINDABLE( namedcmd) ;
BINDABLE( storemac) ;
BINDABLE( storeproc) ;
BINDABLE( cbuf1) ;
BINDABLE( cbuf2) ;
BINDABLE( cbuf3) ;
BINDABLE( cbuf4) ;
BINDABLE( cbuf5) ;
BINDABLE( cbuf6) ;
BINDABLE( cbuf7) ;
BINDABLE( cbuf8) ;
BINDABLE( cbuf9) ;
BINDABLE( cbuf10) ;
BINDABLE( cbuf11) ;
BINDABLE( cbuf12) ;
BINDABLE( cbuf13) ;
BINDABLE( cbuf14) ;
BINDABLE( cbuf15) ;
BINDABLE( cbuf16) ;
BINDABLE( cbuf17) ;
BINDABLE( cbuf18) ;
BINDABLE( cbuf19) ;
BINDABLE( cbuf20) ;
BINDABLE( cbuf21) ;
BINDABLE( cbuf22) ;
BINDABLE( cbuf23) ;
BINDABLE( cbuf24) ;
BINDABLE( cbuf25) ;
BINDABLE( cbuf26) ;
BINDABLE( cbuf27) ;
BINDABLE( cbuf28) ;
BINDABLE( cbuf29) ;
BINDABLE( cbuf30) ;
BINDABLE( cbuf31) ;
BINDABLE( cbuf32) ;
BINDABLE( cbuf33) ;
BINDABLE( cbuf34) ;
BINDABLE( cbuf35) ;
BINDABLE( cbuf36) ;
BINDABLE( cbuf37) ;
BINDABLE( cbuf38) ;
BINDABLE( cbuf39) ;
BINDABLE( cbuf40) ;
#endif
/* end of exec.h */

35
file.c
View File

@ -1,13 +1,11 @@
/* file.c -- implements file.h */
#include "file.h"
/* file.c
*
* The routines in this file handle the reading, writing
* and lookup of disk files. All of details about the
* reading and writing of the disk are in "fileio.c".
*
* modified by Petri Kutvonen
/* The routines in this file handle the reading, writing and lookup of disk
files. All of details about the reading and writing of the disk are in
"fileio.c".
modified by Petri Kutvonen
*/
#include <assert.h>
@ -233,8 +231,8 @@ int getfile( const char *fname, boolean lockfl) {
return s;
}
/*
* Read file "fname" into the current buffer, blowing away any text
/* Read file "fname" into the current buffer, blowing away any text
* found there. Called by both the read and find commands. Return
* the final status of the read. Also called by the mainline, to
* read in a file specified on the command line as an argument.
@ -284,10 +282,10 @@ int readin(const char *fname, boolean lockfl)
/* read the file in */
mloutstr( "(Reading file)") ;
while ((s = ffgetline()) == FIOSUC) {
while( (s = ffgetline()) == FIOSUC) {
line_p lp ;
if( nline >= 10000000 /* MAXNLINE Maximum # of lines from one file */
if( nline >= 10000000 /* Maximum # of lines from one file */
|| (lp = lalloc( fpayload)) == NULL) {
s = FIOMEM ; /* Keep message on the */
break ; /* display. */
@ -327,12 +325,11 @@ int readin(const char *fname, boolean lockfl)
if( fcode == FCODE_UTF_8)
curbp->b_mode |= MDUTF8 ;
if( s == FIOERR) {
errmsg = "I/O ERROR, " ;
curbp->b_flag |= BFTRUNC ;
} else if( s == FIOMEM) {
errmsg = "OUT OF MEMORY, " ;
if( s == FIOERR
|| s == FIOMEM) {
errmsg = (s == FIOERR) ? "I/O ERROR, " : "OUT OF MEMORY, " ;
curbp->b_flag |= BFTRUNC ;
curbp->b_mode |= MDVIEW ; /* force view mode as lost data */
} else
errmsg = "" ;
@ -464,10 +461,8 @@ BINDABLE( filesave) {
/* complain about truncated files */
if( (curbp->b_flag & BFTRUNC) != 0
&& mlyesno("Truncated file ... write it out") == FALSE) {
mloutfmt( "%B(Aborted)") ;
return FALSE ;
}
&& mlyesno( "Truncated file ... write it out") == FALSE)
return mloutfail( "(Aborted)") ;
return writeout( curbp->b_fname) ;
}

52
input.c
View File

@ -15,9 +15,10 @@
#include "bind.h"
#include "estruct.h"
#include "bindable.h"
#include "display.h"
#include "display.h" /* rubout(), echos(), echoc(), update() */
#include "exec.h"
#include "isa.h"
#include "mlout.h"
#include "names.h"
#include "terminal.h"
#include "utf8.h"
@ -38,12 +39,12 @@ kbdstate kbdmode = STOP ; /* current keyboard macro mode */
int lastkey = 0 ; /* last keystoke */
int kbdrep = 0 ; /* number of repetitions */
int metac = CTRL | '[' ; /* current meta character */
int ctlxc = CTRL | 'X' ; /* current control X prefix char */
int reptc = CTRL | 'U' ; /* current universal repeat char */
int abortc = CTRL | 'G' ; /* current abort command char */
int metac = CTL_ | '[' ; /* current meta character */
int ctlxc = CTL_ | 'X' ; /* current control X prefix char */
int reptc = CTL_ | 'U' ; /* current universal repeat char */
int abortc = CTL_ | 'G' ; /* current abort command char */
const int nlc = CTRL | 'J' ; /* end of input char */
const int nlc = CTL_ | 'J' ; /* end of input char */
void ue_system( const char *cmd) {
@ -66,7 +67,7 @@ int mlyesno( const char *prompt)
for (;;) {
/* prompt the user */
mlwrite( "%s (y/n)? ", prompt) ;
mloutfmt( "%s (y/n)? ", prompt) ;
/* get the response */
c = get1key() ;
@ -142,11 +143,11 @@ int newmlargt( char **outbufref, const char *prompt, int size) {
/*
* ectoc:
* expanded character to character
* collapse the CTRL and SPEC flags back into an ascii code
* collapse the CTL_ and SPEC flags back into an ascii code
*/
int ectoc( int c) {
if( c & CTRL)
c ^= CTRL | 0x40 ;
if( c & CTL_)
c ^= CTL_ | 0x40 ;
if( c & SPEC)
c &= 255 ;
@ -189,10 +190,10 @@ nbind_p getname( void) {
/* and match it off */
return fncmatch( buf) ;
} else if (c == ectoc(abortc)) { /* Bell, abort */
ctrlg(FALSE, 0);
TTflush();
return NULL;
} else if( c == ectoc(abortc)) { /* Bell, abort */
ctrlg( FALSE, 1) ;
TTflush() ;
return NULL ;
} else if (c == 0x7F || c == 0x08) { /* rubout/erase */
if (cpos != 0) {
@ -322,7 +323,7 @@ int tgetc(void)
}
/* GET1KEY: Get one keystroke. The only prefixes legal here are the SPEC
and CTRL prefixes. */
and CTL_ prefixes. */
static int get1unicode( int *up) {
/* Accept UTF-8 sequence */
int bytes ;
@ -343,7 +344,7 @@ static int get1unicode( int *up) {
bytes = utf8_to_unicode( utf, 0, sizeof utf, (unicode_t *) up) ;
} else {
if( (c >= 0x00 && c <= 0x1F) || c == 0x7F) /* C0 control -> C- */
c ^= CTRL | 0x40 ;
c ^= CTL_ | 0x40 ;
*up = c ;
bytes = 1 ;
@ -383,7 +384,7 @@ int getcmd( void) {
c = *(kptr++) = get1key() ;
if( c == 0x9B)
goto foundCSI ;
else if( c == (CTRL | '[')) {
else if( c == (CTL_ | '[')) {
/* fetch terminal sequence */
c = *(kptr++) = get1key() ;
if( c == 'O') { /* F1 .. F4 */
@ -407,7 +408,7 @@ int getcmd( void) {
mask = META ;
if( (v - 1) & 4)
mask |= CTRL ;
mask |= CTL_ ;
v = v1 ;
}
@ -513,7 +514,7 @@ int getstring( const char *prompt, char *buf, int nbuf, int eolchar)
quote_f = FALSE;
/* prompt the user for the input string */
mlwrite( "%s", prompt);
mloutstr( prompt);
for (;;) {
#if COMPLC
@ -538,23 +539,22 @@ int getstring( const char *prompt, char *buf, int nbuf, int eolchar)
}
/* If it is a <ret>, change it to a <NL> */
if( c == (CTRL | 'M'))
c = CTRL | 0x40 | '\n' ;
if( c == (CTL_ | 'M'))
c = CTL_ | 0x40 | '\n' ;
if( c == eolchar) {
/* if they hit the line terminator, wrap it up */
buf[ cpos] = 0 ;
/* clear the message line */
mlwrite("");
mloutstr( "") ;
/* if we default the buffer, return FALSE */
retval = cpos != 0 ;
break ;
} else if( c == abortc) {
/* Abort the input? */
ctrlg( FALSE, 0) ;
retval = ABORT ;
retval = ctrlg( FALSE, 1) ;
break ;
}
@ -574,7 +574,7 @@ int getstring( const char *prompt, char *buf, int nbuf, int eolchar)
}
} else if( c == 0x15) {
/* C-U, kill */
mlwrite( "%s", prompt) ;
mloutstr( prompt) ;
cpos = 0 ;
#if COMPLC
} else if( (c == 0x09 || c == ' ') && file_f) {
@ -588,7 +588,7 @@ int getstring( const char *prompt, char *buf, int nbuf, int eolchar)
didtry = 1;
ocpos = cpos;
mlwrite( "%s", prompt) ;
mloutstr( prompt) ;
while( cpos != 0) {
c = buf[ --cpos] ;
if( c == '*' || c == '?') {

View File

@ -1,8 +1,7 @@
/* isearch.c -- implements isearch.h */
#include "isearch.h"
/* isearch.c
*
* The functions in this file implement commands that perform incremental
/* The functions in this file implement commands that perform incremental
* searches in the forward and backward directions. This "ISearch" command
* is intended to emulate the same command from the original EMACS
* implementation (ITS). Contains references to routines internal to
@ -24,7 +23,6 @@
* Modified by Petri Kutvonen
*/
#include <stdio.h>
#include <string.h>
#include "basic.h"
@ -42,8 +40,6 @@
/*
* Incremental search defines.
*/
#if ISRCH
#define CMDBUFLEN 256 /* Length of our command buffer */
#define IS_ABORT 0x07 /* Abort the isearch */
@ -60,10 +56,7 @@
/* IS_QUIT is no longer used, the variable metac is used instead */
#endif
static int isearch( int f, int n) ;
static BINDABLE( isearch) ; /* internal use, not to be bound */
static int checknext( char chr, char *patrn, int dir) ;
static int scanmore( char *patrn, int dir) ;
static int match_pat( char *patrn) ;
@ -73,8 +66,6 @@ static int uneat( void) ;
static void reeat( int c) ;
#if ISRCH
static int echo_char(int c, int col);
/* A couple of "own" variables for re-eat */
@ -89,12 +80,10 @@ static int cmd_offset; /* Current offset into command buff */
static int cmd_reexecute = -1; /* > 0 if re-executing command */
/*
* Subroutine to do incremental reverse search. It actually uses the
/* Subroutine to do incremental reverse search. It actually uses the
* same code as the normal incremental search, as both can go both ways.
*/
int risearch(int f, int n)
{
BINDABLE( risearch) {
struct line *curline; /* Current line on entry */
int curoff; /* Current offset on entry */
@ -124,11 +113,10 @@ int risearch(int f, int n)
return TRUE;
}
/*
* Again, but for the forward direction
/* Again, but for the forward direction
*/
int fisearch(int f, int n)
{
BINDABLE( fisearch) {
struct line *curline; /* Current line on entry */
int curoff; /* Current offset on entry */
@ -156,8 +144,8 @@ int fisearch(int f, int n)
return TRUE;
}
/*
* Subroutine to do an incremental search. In general, this works similarly
/* Subroutine to do an incremental search. In general, this works similarly
* to the older micro-emacs search function, except that the search happens
* as each character is typed, with the screen and cursor updated with each
* new search character.
@ -182,8 +170,7 @@ int fisearch(int f, int n)
* exists (or until the search is aborted).
*/
static int isearch(int f, int n)
{
static BINDABLE( isearch) {
int status; /* Search status */
int col; /* prompt column */
unsigned cpos ; /* character number in search string */
@ -541,8 +528,6 @@ static void reeat(int c)
saved_get_char = term.t_getchar; /* Save the char get routine */
term.t_getchar = uneat; /* Replace it with ours */
}
#else
int isearch(int f, int n)
{
}
#endif
/* end of isearch.c */

View File

@ -1,11 +1,11 @@
/* isearch.h -- incremental search */
#ifndef __ISEARCH_H__
#define __ISEARCH_H__
#define ISRCH 1 /* Incremental searches like ITS EMACS */
# include "names.h" /* BINDABLE */
#if ISRCH
int risearch( int f, int n) ;
int fisearch( int f, int n) ;
#endif
BINDABLE( risearch) ;
BINDABLE( fisearch) ;
#endif
/* end of isearch */

12
line.c
View File

@ -249,12 +249,11 @@ void lchange(int flag)
*
* int f, n; default flag and numeric argument
*/
int insspace(int f, int n)
{
BINDABLE( insspace) {
assert( !(curbp->b_mode & MDVIEW)) ;
linsert(n, ' ');
backchar(f, n);
return TRUE;
linsert( n, ' ') ;
backchar( f, n) ;
return TRUE ;
}
/*
@ -821,8 +820,7 @@ BINDABLE( yank) {
* VIEW (read-only) mode
*/
boolean rdonly( void) {
mloutfmt( "%B(Key illegal in VIEW mode)") ;
return FALSE ;
return mloutfail( "(Key illegal in VIEW mode)") ;
}
/* end of line.c */

View File

@ -12,4 +12,9 @@ void mloutstr( const char *str) {
mloutfmt( (*str) ? "%s" : "", str) ;
}
boolean mloutfail( const char *msg) {
mloutfmt( "%B%s", msg) ;
return FALSE ;
}
/* end of mlout.c */

View File

@ -3,9 +3,12 @@
#ifndef __MLOUT_H__
#define __MLOUT_H__
#include "retcode.h"
extern void (*mloutfmt)( const char *, ...) ;
void mloutstr( const char *str) ;
boolean mloutfail( const char *msg) ; /* output with BELL and return FALSE */
#endif /* __MLOUT_H__ */

192
names.c
View File

@ -33,51 +33,51 @@
const name_bind names[] = {
{" abort-command", ctrlg, CTRL | 'G'} ,
{" abort-command", ctrlg, CTL_ | 'G'} ,
{" add-global-mode", setgmode, META | 'M'} ,
{" add-mode", setemode, CTLX | 'M'} ,
{" apropos", apro, META | 'A'} ,
{" backward-character", (fnp_t) backchar, CTRL | 'B'} ,
{" begin-macro", ctlxlp, CTLX | '('} ,
{" backward-character", (fnp_t) backchar, CTL_ | 'B'} ,
{" begin-macro", (fnp_t) ctlxlp, CTLX | '('} ,
{" beginning-of-file", (fnp_t) gotobob, META | '<'} ,
{" beginning-of-line", (fnp_t) gotobol, CTRL | 'A'} ,
{" beginning-of-line", (fnp_t) gotobol, CTL_ | 'A'} ,
{" bind-to-key", bindtokey, META | 'K'} ,
{" buffer-position", showcpos, CTLX | '='} ,
{"!case-region-lower", lowerregion, CTLX | CTRL | 'L'} ,
{"!case-region-upper", upperregion, CTLX | CTRL | 'U'} ,
{"!case-region-lower", lowerregion, CTLX | CTL_ | 'L'} ,
{"!case-region-upper", upperregion, CTLX | CTL_ | 'U'} ,
{"!case-word-capitalize", capword, META | 'C'} ,
{"!case-word-lower", lowerword, META | 'L'} ,
{"!case-word-upper", upperword, META | 'U'} ,
{" change-file-name", filename, CTLX | 'N'} ,
{" change-screen-size", newsize, META | CTRL | 'D'} , /* M^S */
{" change-screen-width", newwidth, META | CTRL | 'T'} ,
{" clear-and-redraw", redraw, CTRL | 'L'} ,
{" clear-message-line", clrmes, 0} ,
{" change-screen-size", newsize, META | CTL_ | 'D'} , /* M^S */
{" change-screen-width", newwidth, META | CTL_ | 'T'} ,
{" clear-and-redraw", (fnp_t) redraw, CTL_ | 'L'} ,
{" clear-message-line", (fnp_t) clrmes, 0} ,
{" copy-region", copyregion, META | 'W'} ,
{" count-words", wordcount, META | CTRL | 'C'} ,
{" ctlx-prefix", cex, CTRL | 'X'} ,
{"!delete-blank-lines", deblank, CTLX | CTRL | 'O'} ,
{" count-words", wordcount, META | CTL_ | 'C'} ,
{" ctlx-prefix", (fnp_t) cex, CTL_ | 'X'} ,
{"!delete-blank-lines", deblank, CTLX | CTL_ | 'O'} ,
{" delete-buffer", killbuffer, CTLX | 'K'} ,
{" delete-global-mode", delgmode, META | CTRL | 'M'} ,
{" delete-mode", delmode, CTLX | CTRL | 'M'} ,
{"!delete-next-character", forwdel, CTRL | 'D'} ,
{" delete-global-mode", delgmode, META | CTL_ | 'M'} ,
{" delete-mode", delmode, CTLX | CTL_ | 'M'} ,
{"!delete-next-character", forwdel, CTL_ | 'D'} ,
{"!delete-next-word", delfword, META | 'D'} ,
{" delete-other-windows", onlywind, CTLX | '1'} ,
{"!delete-previous-character", backdel, CTRL | 'H'} , /* ^? */
{"!delete-previous-word", delbword, META | CTRL | 'H'} , /* M^? */
{"!delete-previous-character", backdel, CTL_ | 'H'} , /* ^? */
{"!delete-previous-word", delbword, META | CTL_ | 'H'} , /* M^? */
{" delete-window", delwind, CTLX | '0'} ,
{" describe-bindings", desbind, 0} ,
{" describe-key", deskey, CTLX | '?'} ,
{"!detab-line", detab, CTLX | CTRL | 'D'} , /* X^A */
{" end-macro", ctlxrp, CTLX | ')'} ,
{"!detab-line", detab, CTLX | CTL_ | 'D'} , /* X^A */
{" end-macro", (fnp_t) ctlxrp, CTLX | ')'} ,
{" end-of-file", (fnp_t) gotoeob, META | '>'} ,
{" end-of-line", (fnp_t) gotoeol, CTRL | 'E'} ,
{"!entab-line", entab, CTLX | CTRL | 'E'} ,
{" exchange-point-and-mark", (fnp_t) swapmark, CTLX | CTRL | 'X'} ,
{" end-of-line", (fnp_t) gotoeol, CTL_ | 'E'} ,
{"!entab-line", entab, CTLX | CTL_ | 'E'} ,
{" exchange-point-and-mark", (fnp_t) swapmark, CTLX | CTL_ | 'X'} ,
{" execute-buffer", execbuf, 0} ,
{" execute-command-line", execcmd, 0} ,
{" execute-file", execfile, 0} ,
{" execute-macro", ctlxe, CTLX | 'E'} ,
{" execute-macro", (fnp_t) ctlxe, CTLX | 'E'} ,
{" execute-macro-1", cbuf1, 0} ,
{" execute-macro-10", cbuf10, 0} ,
{" execute-macro-11", cbuf11, 0} ,
@ -119,116 +119,106 @@ const name_bind names[] = {
{" execute-macro-8", cbuf8, 0} ,
{" execute-macro-9", cbuf9, 0} ,
{" execute-named-command", namedcmd, META | 'X'} ,
#if PROC
{" execute-procedure", execproc, META | CTRL | 'E'} ,
#endif
{" execute-procedure", execproc, META | CTL_ | 'E'} ,
{" execute-program", execprg, CTLX | '$'} ,
{" exit-emacs", quit, CTLX | CTRL | 'C'} ,
{" exit-emacs", quit, CTLX | CTL_ | 'C'} ,
{"!fill-paragraph", fillpara, META | 'Q'} ,
{"!filter-buffer", filter_buffer, CTLX | '#'} ,
{" find-file", filefind, CTLX | CTRL | 'F'} ,
{" forward-character", (fnp_t) forwchar, CTRL | 'F'} ,
{" find-file", filefind, CTLX | CTL_ | 'F'} ,
{" forward-character", (fnp_t) forwchar, CTL_ | 'F'} ,
{" goto-line", gotoline, META | 'G'} ,
#if CFENCE
{" goto-matching-fence", getfence, META | CTRL | 'F'} ,
{" goto-matching-fence", getfence, META | CTL_ | 'F'} ,
#endif
{" grow-window", enlargewind, CTLX | 'Z'} , /* X^ */
{"!handle-tab", insert_tab, CTRL | 'I'} ,
{"!handle-tab", insert_tab, CTL_ | 'I'} ,
{" help", help, META | '?'} ,
{" hunt-backward", backhunt, 0} ,
{" hunt-forward", forwhunt, META | 'S'} ,
{" i-shell", spawncli, CTLX | 'C'} ,
#if ISRCH
{" incremental-search", fisearch, CTLX | 'S'} ,
#endif
{"!insert-file", insfile, CTLX | CTRL | 'I'} ,
{"!insert-space", insspace, CTRL | 'C'} ,
{"!insert-file", insfile, CTLX | CTL_ | 'I'} ,
{"!insert-space", insspace, CTL_ | 'C'} ,
{"!insert-string", istring, 0} ,
#if PKCODE
{"!justify-paragraph", justpara, META | 'J'} ,
#endif
{"!kill-paragraph", killpara, META | CTRL | 'W'} ,
{"!kill-region", killregion, CTRL | 'W'} ,
{"!kill-to-end-of-line", killtext, CTRL | 'K'} ,
{" list-buffers", listbuffers, CTLX | CTRL | 'B'} ,
{" meta-prefix", metafn, CTRL | '['} ,
{" move-window-down", mvdnwind, CTLX | CTRL | 'N'} ,
{" move-window-up", mvupwind, CTLX | CTRL | 'P'} ,
{" name-buffer", namebuffer, META | CTRL | 'N'} ,
{"!newline", insert_newline, CTRL | 'M'} ,
{"!newline-and-indent", indent, CTRL | 'J'} ,
{"!kill-paragraph", killpara, META | CTL_ | 'W'} ,
{"!kill-region", killregion, CTL_ | 'W'} ,
{"!kill-to-end-of-line", killtext, CTL_ | 'K'} ,
{" list-buffers", listbuffers, CTLX | CTL_ | 'B'} ,
{" meta-prefix", (fnp_t) metafn, CTL_ | '['} ,
{" move-window-down", mvdnwind, CTLX | CTL_ | 'N'} ,
{" move-window-up", mvupwind, CTLX | CTL_ | 'P'} ,
{" name-buffer", namebuffer, META | CTL_ | 'N'} ,
{"!newline", insert_newline, CTL_ | 'M'} ,
{"!newline-and-indent", indent, CTL_ | 'J'} ,
{" next-buffer", nextbuffer, CTLX | 'X'} ,
{" next-line", (fnp_t) forwline, CTRL | 'N'} ,
{" next-page", (fnp_t) forwpage, CTRL | 'V'} ,
{" next-line", (fnp_t) forwline, CTL_ | 'N'} ,
{" next-page", (fnp_t) forwpage, CTL_ | 'V'} ,
{" next-paragraph", gotoeop, META | 'N'} ,
{" next-window", nextwind, CTLX | 'O'} ,
{" next-word", forwword, META | 'F'} ,
{" nop", nullproc, SPEC | META | 'C'}, /* hook */
{"!open-line", openline, CTRL | 'O'} ,
{" nop", (fnp_t) nullproc, META | SPEC | 'C'}, /* hook */
{"!open-line", openline, CTL_ | 'O'} ,
{"!overwrite-string", ovstring, 0} ,
{" pipe-command", pipecmd, CTLX | '@'} ,
{" previous-line", (fnp_t) backline, CTRL | 'P'} ,
{" previous-page", (fnp_t) backpage, CTRL | 'Z'} , /* MV */
{" previous-line", (fnp_t) backline, CTL_ | 'P'} ,
{" previous-page", (fnp_t) backpage, CTL_ | 'Z'} , /* MV */
{" previous-paragraph", gotobop, META | 'P'} ,
{" previous-window", prevwind, CTLX | 'P'} ,
{" previous-word", backword, META | 'B'} ,
{"!query-replace-string", qreplace, META | CTRL | 'R'} ,
{"!query-replace-string", qreplace, META | CTL_ | 'R'} ,
{" quick-exit", quickexit, META | 'Z'} ,
{"!quote-character", quote, CTRL | 'Q'} , /* also XQ */
{"!read-file", fileread, CTLX | CTRL | 'R'} ,
{" redraw-display", reposition, META | CTRL | 'L'} , /* M! */
{"!quote-character", quote, CTL_ | 'Q'} ,
{"!read-file", fileread, CTLX | CTL_ | 'R'} ,
{" redraw-display", (fnp_t) reposition, META | CTL_ | 'L'} ,
{"!replace-string", sreplace, META | 'R'} ,
{" resize-window", resize, CTLX | 'W'} ,
{" restore-window", restwnd, 0} ,
#if ISRCH
{" reverse-incremental-search", risearch, CTLX | 'R'} ,
#endif
#if PROC
{" run", execproc, 0} , // alias of execute-procedure
#endif
{"!save-file", filesave, CTLX | CTRL | 'S'} , /* also X^D */
{" run", execproc, 0} , /* alias of execute-procedure */
{"!save-file", filesave, CTLX | CTL_ | 'S'} , /* also X^D */
{" save-window", savewnd, 0} ,
{" scroll-next-down", scrnextdw, META | CTRL | 'V'} ,
{" scroll-next-up", scrnextup, META | CTRL | 'Z'} ,
{" search-forward", forwsearch, CTRL | 'S'} ,
{" search-reverse", backsearch, CTRL | 'R'} ,
{" scroll-next-down", scrnextdw, META | CTL_ | 'V'} ,
{" scroll-next-up", scrnextup, META | CTL_ | 'Z'} ,
{" search-forward", forwsearch, CTL_ | 'S'} ,
{" search-reverse", backsearch, CTL_ | 'R'} ,
{" select-buffer", usebuffer, CTLX | 'B'} ,
{" set", setvar, CTLX | 'A'} ,
{" set-fill-column", setfillcol, CTLX | 'F'} ,
{" set-mark", (fnp_t) setmark, META | ' '} , /* M. */
{" shell-command", spawn, CTLX | '!'} ,
{" shrink-window", shrinkwind, CTLX | CTRL | 'Z'} ,
{" shrink-window", shrinkwind, CTLX | CTL_ | 'Z'} ,
{" split-current-window", splitwind, CTLX | '2'} ,
{" store-macro", storemac, 0} ,
#if PROC
{" store-procedure", storeproc, 0} ,
#endif
#if BSD | SVR4
{" suspend-emacs", bktoshell, CTLX | 'D'} , /* BSD MS */
#endif
{"!transpose-characters", (fnp_t) twiddle, CTRL | 'T'} ,
{"!trim-line", trim, CTLX | CTRL | 'T'} ,
{" unbind-key", unbindkey, META | CTRL | 'K'} ,
{" universal-argument", unarg, CTRL | 'U'} ,
{"!transpose-characters", (fnp_t) twiddle, CTL_ | 'T'} ,
{"!trim-line", trim, CTLX | CTL_ | 'T'} ,
{" unbind-key", unbindkey, META | CTL_ | 'K'} ,
{" universal-argument", (fnp_t) unarg, CTL_ | 'U'} ,
{" unmark-buffer", unmark, META | '~'} ,
{" update-screen", upscreen, 0} ,
{" view-file", viewfile, CTLX | CTRL | 'V'} ,
{"!wrap-word", wrapword, SPEC | META | 'W'} , /* hook */
{" write-file", filewrite, CTLX | CTRL | 'W'} ,
{" view-file", viewfile, CTLX | CTL_ | 'V'} ,
{"!wrap-word", wrapword, META | SPEC | 'W'} , /* hook */
{" write-file", filewrite, CTLX | CTL_ | 'W'} ,
{" write-message", writemsg, 0} ,
{"!yank", yank, CTRL | 'Y'} ,
{"!yank", yank, CTL_ | 'Y'} ,
{" ", NULL, 0},
/* extra key mapping */
// { NULL, newsize, META | CTRL | 'S'},
{ NULL, backdel, CTRL | '?'},
{ NULL, delbword, META | CTRL | '?'},
{ NULL, detab, CTLX | CTRL | 'A'},
// { NULL, newsize, META | CTL_ | 'S'},
{ NULL, backdel, CTL_ | '?'},
{ NULL, delbword, META | CTL_ | '?'},
{ NULL, detab, CTLX | CTL_ | 'A'},
{ NULL, enlargewind, CTLX | '^'},
{ NULL, (fnp_t) backpage, META | 'V'},
{ NULL, quote, CTLX | 'Q'},
{ NULL, reposition, META | '!'},
//detab { NULL, filesave, CTLX | CTRL | 'D'},
{ NULL, (fnp_t) reposition, META | '!'},
//detab { NULL, filesave, CTLX | CTL_ | 'D'},
{ NULL, (fnp_t) setmark, META | '.'},
// { NULL, bktoshell, META | 'S'},
@ -246,14 +236,14 @@ const name_bind names[] = {
{ NULL, help, SPEC | 'P'}, /* F1 */
/* hooks */
{ NULL, nullproc, SPEC | META | 'R'}, /* hook */
{ NULL, nullproc, SPEC | META | 'X'}, /* hook */
{ NULL, (fnp_t) nullproc, META | SPEC | 'R'}, /* hook */
{ NULL, (fnp_t) nullproc, META | SPEC | 'X'}, /* hook */
{ NULL, NULL, 0}
} ;
static int lastnmidx = 0 ; /* index of last name entry */
static int lastnmidx = 0 ; /* index of last name entry */
kbind_p keytab ;
static int ktsize = 140 ; /* last check: need at least 133 + 1 */
@ -282,6 +272,9 @@ boolean init_bindings( void) {
/* Add key definition */
if( nbp->n_keycode) {
kbind_p ktp = setkeybinding( nbp->n_keycode, nbp) ;
if( ktp->k_code == 0) /* Table full, no memory left */
return FALSE ;
/* check it was indeed an insertion at end of table not a
* key code re-definition */
assert( (++ktp)->k_code == 0) ;
@ -293,14 +286,20 @@ boolean init_bindings( void) {
/* Process extra key bindings if any */
for( nbp++ ; nbp->n_func != NULL ; nbp++) {
/* Check entry */
/* Check entry: a keycode and no name */
assert( nbp->n_keycode && (nbp->n_name == NULL)) ;
/* Look for corresponding function and add extra key binding */
nbind_p fnbp ;
for( fnbp = names ; fnbp->n_func != NULL ; fnbp++)
if( fnbp->n_func == nbp->n_func) {
setkeybinding( nbp->n_keycode, fnbp) ;
kbind_p ktp = setkeybinding( nbp->n_keycode, fnbp) ;
if( ktp->k_code == 0) /* Table full, no memory left */
return FALSE ;
/* check it was indeed an insertion at end of table not a
* key code re-definition */
assert( (++ktp)->k_code == 0) ;
break ;
}
@ -370,8 +369,8 @@ boolean delkeybinding( unsigned key) {
return FALSE ;
}
/*
* This function looks a key binding up in the binding table
/* This function looks a key binding up in the binding table
*
* int c; key to find what is bound to it
*/
@ -416,23 +415,26 @@ nbind_p fncmatch( char *name) {
}
/* user function that does NOTHING */
BINDABLE( nullproc) {
/* user function that does NOTHING (bound to hooks) */
TBINDABLE( nullproc) {
return TRUE ;
}
/* dummy function for binding to meta prefix */
BINDABLE( metafn) {
TBINDABLE( metafn) {
return TRUE ;
}
/* dummy function for binding to control-x prefix */
BINDABLE( cex) {
TBINDABLE( cex) {
return TRUE ;
}
/* dummy function for binding to universal-argument */
BINDABLE( unarg) {
TBINDABLE( unarg) {
return TRUE ;
}

19
names.h
View File

@ -1,12 +1,10 @@
/* names.h -- mapping of functions to names and keys */
#ifndef _NAMES_H_
#define _NAMES_H_
# define _NAMES_H_
#include "retcode.h"
#define CTRL 0x01000000 /* Control flag, or'ed in */
#define CTL_ 0x01000000 /* Control flag, or'ed in */
#define META 0x02000000 /* Meta flag, or'ed in */
#define CTLX 0x04000000 /* ^X flag, or'ed in */
#define SPEC 0x08000000 /* special key (function keys) */
@ -14,7 +12,9 @@
/* Bindable uEMACS function pointer type and definition template */
#define BINDABLE( fname) int fname( int f, int n)
#define BINDABLE( fname) int fname( boolean f, int n)
#define BBINDABLE( fname) boolean fname( boolean f, int n)
#define TBINDABLE BBINDABLE
typedef BINDABLE( (*fnp_t)) ;
@ -53,11 +53,10 @@ nbind_p fncmatch( char *name) ; /* look up by name */
/* bindable functions mapped to prefix keys and hooks */
BINDABLE( nullproc) ;
BINDABLE( metafn) ;
BINDABLE( cex) ;
BINDABLE( unarg) ;
TBINDABLE( nullproc) ;
TBINDABLE( metafn) ;
TBINDABLE( cex) ;
TBINDABLE( unarg) ;
#endif
/* end of names.h */

View File

@ -144,15 +144,13 @@ int getcline(void)
return numlines + 1;
}
/*
* Return current column. Stop at first non-blank given TRUE argument.
/* Return current column. Stop at first non-blank given TRUE argument.
*/
int getccol(int bflg)
{
int i, col;
int getccol( int bflg) {
int i, col ;
line_p dlp = curwp->w_dotp ;
int byte_offset = curwp->w_doto;
int len = llength(dlp);
int byte_offset = curwp->w_doto ;
int len = llength( dlp) ;
col = i = 0;
while (i < byte_offset) {
@ -160,17 +158,20 @@ int getccol(int bflg)
i += utf8_to_unicode(dlp->l_text, i, len, &c);
if( bflg && c != ' ' && c != '\t') /* Request Stop at first non-blank */
break;
break ;
if (c == '\t')
col += tabwidth - col % tabwidth ;
else if (c < 0x20 || c == 0x7F) /* displayed as ^c */
col += 2 ;
else if (c >= 0x80 && c <= 0xa0) /* displayed as \xx */
col += 3 ;
else
col += 1 ;
else {
int w = utf8_width( c) ; /* incomplete wc_width */
col += (w < 0) ? 2 : w ;
}
}
return col;
return col ;
}
/*
@ -714,60 +715,40 @@ BINDABLE( killtext) {
return ldelete(chunk, TRUE);
}
/*
* prompt and set an editor mode
/* prompt and set an editor mode
*
* int f, n; default and argument
*/
int setemode(int f, int n)
{
#if PKCODE
return adjustmode(TRUE, FALSE);
#else
adjustmode(TRUE, FALSE);
#endif
BINDABLE( setemode) {
return adjustmode( TRUE, FALSE) ;
}
/*
* prompt and delete an editor mode
/* prompt and delete an editor mode
*
* int f, n; default and argument
*/
int delmode(int f, int n)
{
#if PKCODE
return adjustmode(FALSE, FALSE);
#else
adjustmode(FALSE, FALSE);
#endif
BINDABLE( delmode) {
return adjustmode( FALSE, FALSE) ;
}
/*
* prompt and set a global editor mode
/* prompt and set a global editor mode
*
* int f, n; default and argument
*/
int setgmode(int f, int n)
{
#if PKCODE
return adjustmode(TRUE, TRUE);
#else
adjustmode(TRUE, TRUE);
#endif
BINDABLE( setgmode) {
return adjustmode( TRUE, TRUE) ;
}
/*
* prompt and delete a global editor mode
/* prompt and delete a global editor mode
*
* int f, n; default and argument
*/
int delgmode(int f, int n)
{
#if PKCODE
return adjustmode(FALSE, TRUE);
#else
adjustmode(FALSE, TRUE);
#endif
BINDABLE( delgmode) {
return adjustmode( FALSE, TRUE) ;
}
/*
@ -858,11 +839,10 @@ static int adjustmode( int kind, int global) {
static int iovstring( int f, int n, const char *prompt, int (*fun)( char *)) {
int status ; /* status return code */
char *tstring ; /* string to add */
/* ask for string to insert */
status = newmlargt( &tstring, prompt, 0) ; /* grab as big a token as screen allow */
/* ask for string to insert */
int status = newmlargt( &tstring, prompt, 0) ;
if( tstring == NULL)
return status ;

View File

@ -9,7 +9,7 @@
*/
#include <assert.h>
#include <stdio.h>
#include <stddef.h>
#include "buffer.h"
#include "estruct.h"
@ -139,10 +139,9 @@ int getregion( region_p rp) {
line_p flp, blp ;
long fsize, bsize ;
if (curwp->w_markp == NULL) {
mloutstr( "No mark set in this window") ;
return FALSE;
}
if (curwp->w_markp == NULL)
return mloutfail( "No mark set in this window") ;
if (curwp->w_dotp == curwp->w_markp) {
rp->r_linep = curwp->w_dotp;
if (curwp->w_doto < curwp->w_marko) {
@ -182,8 +181,8 @@ int getregion( region_p rp) {
}
}
}
mloutstr( "Bug: lost mark") ;
return FALSE;
return mloutfail( "Bug: lost mark") ;
}
/* end of region.c */

View File

@ -1,9 +1,7 @@
/* search.c -- implements search.h */
#include "search.h"
/* search.c
*
* The functions in this file implement commands that search in the forward
/* The functions in this file implement commands that search in the forward
* and backward directions. There are no special characters in the search
* strings. Probably should have a regular expression search, or something
* like that.
@ -177,15 +175,14 @@ static int biteq(int bc, char *cclmap);
static char *clearbits(void);
static void setbit(int bc, char *cclmap);
/*
* forwsearch -- Search forward. Get a search string from the user, and
/* forwsearch -- Search forward. Get a search string from the user, and
* search for the string. If found, reset the "." to be just after
* the match string, and (perhaps) repaint the display.
*
* int f, n; default flag / numeric argument
*/
int forwsearch(int f, int n)
{
BINDABLE( forwsearch) {
int status = TRUE;
/* If n is negative, search backwards.
@ -223,15 +220,14 @@ int forwsearch(int f, int n)
return status;
}
/*
* forwhunt -- Search forward for a previously acquired search string.
/* forwhunt -- Search forward for a previously acquired search string.
* If found, reset the "." to be just after the match string,
* and (perhaps) repaint the display.
*
* int f, n; default flag / numeric argument
*/
int forwhunt(int f, int n)
{
BINDABLE( forwhunt) {
int status = TRUE;
if (n < 0) /* search backwards */
@ -276,16 +272,15 @@ int forwhunt(int f, int n)
return status;
}
/*
* backsearch -- Reverse search. Get a search string from the user, and
/* backsearch -- Reverse search. Get a search string from the user, and
* search, starting at "." and proceeding toward the front of the buffer.
* If found "." is left pointing at the first character of the pattern
* (the last character that was matched).
*
* int f, n; default flag / numeric argument
*/
int backsearch(int f, int n)
{
BINDABLE( backsearch) {
int status = TRUE;
/* If n is negative, search forwards.
@ -324,16 +319,15 @@ int backsearch(int f, int n)
return status;
}
/*
* backhunt -- Reverse search for a previously acquired search string,
/* backhunt -- Reverse search for a previously acquired search string,
* starting at "." and proceeding toward the front of the buffer.
* If found "." is left pointing at the first character of the pattern
* (the last character that was matched).
*
* int f, n; default flag / numeric argument
*/
int backhunt(int f, int n)
{
BINDABLE( backhunt) {
int status = TRUE;
if (n < 0)
@ -788,26 +782,24 @@ void rvstrcpy(char *rvstr, char *str)
*rvstr = '\0';
}
/*
* sreplace -- Search and replace.
/* sreplace -- Search and replace.
*
* int f; default flag
* int n; # of repetitions wanted
*/
int sreplace(int f, int n)
{
return replaces(FALSE, f, n);
BINDABLE( sreplace) {
return replaces( FALSE, f, n) ;
}
/*
* qreplace -- search and replace with query.
/* qreplace -- search and replace with query.
*
* int f; default flag
* int n; # of repetitions wanted
*/
int qreplace(int f, int n)
{
return replaces(TRUE, f, n);
BINDABLE( qreplace) {
return replaces( TRUE, f, n) ;
}
/*

39
spawn.c
View File

@ -1,9 +1,7 @@
/* spawn.c -- implements spawn.h */
#include "spawn.h"
/* spawn.c
*
* Various operating system access commands.
/* Various operating system access commands.
*
* Modified by Petri Kutvonen
*/
@ -34,13 +32,11 @@
#endif
/*
* Create a subjob with a copy of the command intrepreter in it. When the
/* Create a subjob with a copy of the command intrepreter in it. When the
* command interpreter exits, mark the screen as garbage so that you do a full
* repaint. Bound to "^X C".
*/
int spawncli(int f, int n)
{
BINDABLE( spawncli) {
#if USG | BSD
char *cp;
#endif
@ -81,9 +77,8 @@ int spawncli(int f, int n)
}
#if BSD | SVR4
int bktoshell(int f, int n)
{ /* suspend MicroEMACS and wait to wake up */
/* suspend MicroEMACS and wait to wake up */
BINDABLE( bktoshell) {
vttidy();
/******************************
int pid;
@ -103,12 +98,12 @@ void rtfrmshell(void)
}
#endif
/*
* Run a one-liner in a subjob. When the command returns, wait for a single
/* Run a one-liner in a subjob. When the command returns, wait for a single
* character to be typed, then mark the screen as garbage so a full repaint is
* done. Bound to "C-X !".
*/
int spawn( int f, int n) {
BINDABLE( spawn) {
int s ;
char *line ;
@ -141,13 +136,13 @@ int spawn( int f, int n) {
#endif
}
/*
* Run an external program with arguments. When it returns, wait for a single
/* Run an external program with arguments. When it returns, wait for a single
* character to be typed, then mark the screen as garbage so a full repaint is
* done. Bound to "C-X $".
*/
int execprg( int f, int n) {
BINDABLE( execprg) {
int s ;
char *line ;
@ -176,11 +171,11 @@ int execprg( int f, int n) {
#endif
}
/*
* Pipe a one line command into a window
/* Pipe a one line command into a window
* Bound to ^X @
*/
int pipecmd( int f, int n) {
BINDABLE( pipecmd) {
int s ; /* return status from CLI */
struct window *wp ; /* pointer to new window */
buffer_p bp ; /* pointer to buffer to zot */
@ -271,11 +266,11 @@ int pipecmd( int f, int n) {
return TRUE;
}
/*
* filter a buffer through an external DOS program
/* filter a buffer through an external DOS program
* Bound to ^X #
*/
int filter_buffer( int f, int n) {
BINDABLE( filter_buffer) {
int s ; /* return status from CLI */
buffer_p bp ; /* pointer to buffer to zot */
char *mlarg ;

25
util.c
View File

@ -1,17 +1,20 @@
/* util.c -- implements util.h */
#include "util.h"
/* Safe zeroing, no complaining about overlap */
void mystrscpy(char *dst, const char *src, int size)
{
if (!size)
return;
while (--size) {
char c = *src++;
if (!c)
break;
*dst++ = c;
void mystrscpy( char *dst, const char *src, int size) {
if( size <= 0)
return ;
while( --size) {
char c = *src++ ;
if( !c)
break ;
*dst++ = c ;
}
*dst = 0;
*dst = 0 ;
}
/* end of util.c */

6
util.h
View File

@ -1,7 +1,9 @@
/* util.h -- utility functions */
#ifndef UTIL_H_
#define UTIL_H_
# define UTIL_H_
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
void mystrscpy(char *dst, const char *src, int size);
void mystrscpy( char *dst, const char *src, int size) ;
#endif /* UTIL_H_ */
/* end of util.h */

317
window.c
View File

@ -1,77 +1,65 @@
/* window.c -- inplements window.h */
#include "window.h"
/* window.c
*
* Window management. Some of the functions are internal, and some are
* attached to keys that the user actually types.
*
/* Window management. Some of the functions are internal, and some are
attached to keys that the user actually types.
*/
#include <assert.h>
#include <stdio.h>
#include "basic.h"
#include "buffer.h"
#include "display.h"
#include "display.h" /* upmode() */
#include "estruct.h"
#include "execute.h"
#include "line.h"
#include "mlout.h"
#include "terminal.h"
#include "wrapper.h"
window_p curwp ; /* Current window */
window_p wheadp ; /* Head of list of windows */
struct window *curwp ; /* Current window */
struct window *wheadp ; /* Head of list of windows */
static struct window *swindow = NULL ; /* saved window pointer */
static window_p savwindow = NULL ; /* saved window pointer */
/*
* Reposition dot in the current window to line "n". If the argument is
* positive, it is that line. If it is negative it is that line from the
* bottom. If it is 0 the window is centered (this is what the standard
* redisplay code does). With no argument it defaults to 0. Bound to M-!.
/* Reposition dot in the current window to line "n". If the argument is
positive, it is that line. If it is negative it is that line from the
bottom. If it is 0 the window is centered (this is what the standard
redisplay code does). With no argument it defaults to 0. Bound to M-!.
*/
int reposition(int f, int n)
{
if (f == FALSE) /* default to 0 to center screen */
n = 0;
curwp->w_force = n;
curwp->w_flag |= WFFORCE;
return TRUE;
TBINDABLE( reposition) {
curwp->w_force = (f == FALSE) ? 0 : n ; /* default to 0 to center screen */
curwp->w_flag |= WFFORCE ;
return TRUE ;
}
/*
* Refresh the screen. With no argument, it just does the refresh. With an
* argument it recenters "." in the current window. Bound to "C-L".
/* Refresh the screen. With no argument, it just does the refresh. With
an argument it recenters "." in the current window. Bound to "C-L".
*/
int redraw(int f, int n)
{
if (f == FALSE)
sgarbf = TRUE;
TBINDABLE( redraw) {
if( f == FALSE)
sgarbf = TRUE ;
else {
curwp->w_force = 0; /* Center dot. */
curwp->w_flag |= WFFORCE;
curwp->w_force = 0 ; /* Center dot. */
curwp->w_flag |= WFFORCE ;
}
return TRUE;
return TRUE ;
}
/*
* The command make the next window (next => down the screen) the current
* window. There are no real errors, although the command does nothing if
* there is only 1 window on the screen. Bound to "C-X C-N".
*
* with an argument this command finds the <n>th window from the top
*
* int f, n; default flag and numeric argument
*
/* The command make the next window (next => down the screen) the current
window. There are no real errors, although the command does nothing if
there is only 1 window on the screen. Bound to "C-X C-N".
with an argument this command finds the <n>th window from the top
int f, n; default flag and numeric argument
*/
int nextwind(int f, int n)
{
struct window *wp;
BINDABLE( nextwind) {
window_p wp;
int nwindows; /* total number of windows */
if (f) {
@ -94,10 +82,8 @@ int nextwind(int f, int n)
wp = wheadp;
while (--n)
wp = wp->w_wndp;
} else {
mlwrite("Window number out of range");
return FALSE;
}
} else
return mloutfail( "Window number out of range") ;
} else if ((wp = curwp->w_wndp) == NULL)
wp = wheadp;
curwp = wp;
@ -107,15 +93,14 @@ int nextwind(int f, int n)
return TRUE;
}
/*
* This command makes the previous window (previous => up the screen) the
* current window. There arn't any errors, although the command does not do a
* lot if there is 1 window.
/* This command makes the previous window (previous => up the screen) the
current window. There arn't any errors, although the command does not
do a lot if there is 1 window.
*/
int prevwind(int f, int n)
{
struct window *wp1;
struct window *wp2;
BINDABLE( prevwind) {
window_p wp1;
window_p wp2;
/* if we have an argument, we mean the nth window from the bottom */
if (f)
@ -137,28 +122,26 @@ int prevwind(int f, int n)
return TRUE;
}
/*
* This command moves the current window down by "arg" lines. Recompute the
/* This command moves the current window down by "arg" lines. Recompute the
* top line in the window. The move up and move down code is almost completely
* the same; most of the work has to do with reframing the window, and picking
* a new dot. We share the code by having "move down" just be an interface to
* "move up". Magic. Bound to "C-X C-N".
*/
int mvdnwind(int f, int n)
{
return mvupwind(f, -n);
BINDABLE( mvdnwind) {
return mvupwind( f, -n) ;
}
/*
* Move the current window up by "arg" lines. Recompute the new top line of
/* Move the current window up by "arg" lines. Recompute the new top line of
* the window. Look to see if "." is still on the screen. If it is, you win.
* If it isn't, then move "." to center it in the new framing of the window
* (this command does not really move "."; it moves the frame). Bound to
* "C-X C-P".
*/
int mvupwind(int f, int n)
{
struct line *lp;
BINDABLE( mvupwind) {
line_p lp;
int i;
lp = curwp->w_linep;
@ -193,17 +176,16 @@ int mvupwind(int f, int n)
return TRUE;
}
/*
* This command makes the current window the only window on the screen. Bound
/* This command makes the current window the only window on the screen. Bound
* to "C-X 1". Try to set the framing so that "." does not have to move on the
* display. Some care has to be taken to keep the values of dot and mark in
* the buffer structures right if the distruction of a window makes a buffer
* become undisplayed.
*/
int onlywind(int f, int n)
{
struct window *wp;
struct line *lp;
BINDABLE( onlywind) {
window_p wp;
line_p lp;
int i;
while (wheadp != curwp) {
@ -241,23 +223,20 @@ int onlywind(int f, int n)
return TRUE;
}
/*
* Delete the current window, placing its space in the window above,
/* Delete the current window, placing its space in the window above,
* or, if it is the top window, the window below. Bound to C-X 0.
*
* int f, n; arguments are ignored for this command
*/
int delwind(int f, int n)
{
struct window *wp; /* window to recieve deleted space */
struct window *lwp; /* ptr window before curwp */
BINDABLE( delwind) {
window_p wp; /* window to recieve deleted space */
window_p lwp; /* ptr window before curwp */
int target; /* target line to search for */
/* if there is only one window, don't delete it */
if (wheadp->w_wndp == NULL) {
mlwrite("Can not delete this window");
return FALSE;
}
if( wheadp->w_wndp == NULL)
return mloutfail( "Can not delete this window") ;
/* find window before curwp in linked list */
wp = wheadp;
@ -316,8 +295,8 @@ int delwind(int f, int n)
return TRUE;
}
/*
* Split the current window. A window smaller than 3 lines cannot be
/* Split the current window. A window smaller than 3 lines cannot be
* split. An argument of 1 forces the cursor into the upper window, an
* argument of two forces the cursor to the lower window. The only
* other error that is possible is a "malloc" failure allocating the
@ -325,21 +304,21 @@ int delwind(int f, int n)
*
* int f, n; default flag and numeric argument
*/
int splitwind(int f, int n)
{
struct window *wp;
struct line *lp;
BINDABLE( splitwind) {
window_p wp;
line_p lp;
int ntru;
int ntrl;
int ntrd;
struct window *wp1;
struct window *wp2;
window_p wp1;
window_p wp2;
if (curwp->w_ntrows < 3) {
mlwrite("Cannot split a %d line window", curwp->w_ntrows);
return FALSE;
if( curwp->w_ntrows < 3) {
mloutfmt( "Cannot split a %d line window", curwp->w_ntrows) ;
return FALSE ;
}
wp = xmalloc(sizeof(struct window));
wp = xmalloc( sizeof *wp) ;
++curbp->b_nwnd; /* Displayed twice. */
wp->w_bufp = curbp;
wp->w_dotp = curwp->w_dotp;
@ -398,33 +377,30 @@ int splitwind(int f, int n)
return TRUE;
}
/*
* Enlarge the current window. Find the window that loses space. Make sure it
/* Enlarge the current window. Find the window that loses space. Make sure it
* is big enough. If so, hack the window descriptions, and ask redisplay to do
* all the hard work. You don't just set "force reframe" because dot would
* move. Bound to "C-X Z".
*/
int enlargewind(int f, int n)
{
struct window *adjwp;
struct line *lp;
BINDABLE( enlargewind) {
window_p adjwp;
line_p lp;
int i;
if (n < 0)
return shrinkwind(f, -n);
if (wheadp->w_wndp == NULL) {
mlwrite("Only one window");
return FALSE;
}
if( wheadp->w_wndp == NULL)
return mloutfail( "Only one window") ;
if ((adjwp = curwp->w_wndp) == NULL) {
adjwp = wheadp;
while (adjwp->w_wndp != curwp)
adjwp = adjwp->w_wndp;
}
if (adjwp->w_ntrows <= n) {
mlwrite("Impossible change");
return FALSE;
}
if( adjwp->w_ntrows <= n)
return mloutfail( "Impossible change") ;
if (curwp->w_wndp == adjwp) { /* Shrink below. */
lp = adjwp->w_linep;
for (i = 0; i < n && lp != adjwp->w_bufp->b_linep; ++i)
@ -450,32 +426,29 @@ int enlargewind(int f, int n)
return TRUE;
}
/*
* Shrink the current window. Find the window that gains space. Hack at the
/* Shrink the current window. Find the window that gains space. Hack at the
* window descriptions. Ask the redisplay to do all the hard work. Bound to
* "C-X C-Z".
*/
int shrinkwind(int f, int n)
{
struct window *adjwp;
struct line *lp;
BINDABLE( shrinkwind) {
window_p adjwp;
line_p lp;
int i;
if (n < 0)
return enlargewind(f, -n);
if (wheadp->w_wndp == NULL) {
mlwrite("Only one window");
return FALSE;
}
if( wheadp->w_wndp == NULL)
return mloutfail( "Only one window") ;
if ((adjwp = curwp->w_wndp) == NULL) {
adjwp = wheadp;
while (adjwp->w_wndp != curwp)
adjwp = adjwp->w_wndp;
}
if (curwp->w_ntrows <= n) {
mlwrite("Impossible change");
return FALSE;
}
if( curwp->w_ntrows <= n)
return mloutfail( "Impossible change") ;
if (curwp->w_wndp == adjwp) { /* Grow below. */
lp = adjwp->w_linep;
for (i = 0; i < n && lback(lp) != adjwp->w_bufp->b_linep;
@ -502,13 +475,12 @@ int shrinkwind(int f, int n)
return TRUE;
}
/*
* Resize the current window to the requested size
/* Resize the current window to the requested size
*
* int f, n; default flag and numeric argument
*/
int resize(int f, int n)
{
BINDABLE( resize) {
int clines; /* current # of lines in window */
/* must have a non-default argument, else ignore call */
@ -525,14 +497,14 @@ int resize(int f, int n)
return enlargewind(TRUE, n - clines);
}
/*
* Pick a window for a pop-up. Split the screen if there is only one window.
/* Pick a window for a pop-up. Split the screen if there is only one window.
* Pick the uppermost window that isn't the current window. An LRU algorithm
* might be better. Return a pointer, or NULL on error.
*/
struct window *wpopup(void)
window_p wpopup(void)
{
struct window *wp;
window_p wp;
if (wheadp->w_wndp == NULL /* Only 1 window */
&& splitwind(FALSE, 0) == FALSE) /* and it won't split */
@ -543,59 +515,57 @@ struct window *wpopup(void)
return wp;
}
int scrnextup(int f, int n)
{ /* scroll the next window up (back) a page */
/* scroll the next window up (back) a page */
BINDABLE( scrnextup) {
nextwind(FALSE, 1);
backpage(f, n);
prevwind(FALSE, 1);
return TRUE;
}
int scrnextdw(int f, int n)
{ /* scroll the next window down (forward) a page */
/* scroll the next window down (forward) a page */
BINDABLE( scrnextdw) {
nextwind(FALSE, 1);
forwpage(f, n);
prevwind(FALSE, 1);
return TRUE;
}
int savewnd(int f, int n)
{ /* save ptr to current window */
swindow = curwp;
return TRUE;
/* save ptr to current window */
BINDABLE( savewnd) {
savwindow = curwp ;
return TRUE ;
}
int restwnd(int f, int n)
{ /* restore the saved screen */
struct window *wp;
/* find the window */
wp = wheadp;
while (wp != NULL) {
if (wp == swindow) {
curwp = wp;
curbp = wp->w_bufp;
upmode();
return TRUE;
/* restore the saved screen */
BINDABLE( restwnd) {
/* check the saved window still exists */
for( window_p wp = wheadp ; wp != NULL ; wp = wp->w_wndp) {
if( wp == savwindow) {
curwp = wp ;
curbp = wp->w_bufp ;
upmode() ;
return TRUE ;
}
wp = wp->w_wndp;
}
mlwrite("(No such window exists)");
return FALSE;
return mloutfail( "(No such window exists)") ;
}
/*
* resize the screen, re-writing the screen
/* resize the screen, re-writing the screen
*
* int f; default flag
* int n; numeric argument
*/
int newsize(int f, int n)
{
struct window *wp; /* current window being examined */
struct window *nextwp; /* next window to scan */
struct window *lastwp; /* last window scanned */
BINDABLE( newsize) {
window_p wp; /* current window being examined */
window_p nextwp; /* next window to scan */
window_p lastwp; /* last window scanned */
int lastline; /* screen line of last line of current window */
/* if the command defaults, assume the largest */
@ -603,10 +573,8 @@ int newsize(int f, int n)
n = term.t_mrow ;
/* make sure it's in range */
if (n < 3 || n > term.t_mrow) {
mlwrite("%%Screen size out of range");
return FALSE;
}
if( n < 3 || n > term.t_mrow)
return mloutfail( "%%Screen size out of range") ;
if (term.t_nrow == n - 1)
return TRUE;
@ -674,25 +642,22 @@ int newsize(int f, int n)
return TRUE;
}
/*
* resize the screen, re-writing the screen
/* resize the screen, re-writing the screen
*
* int f; default flag
* int n; numeric argument
*/
int newwidth(int f, int n)
{
struct window *wp;
BINDABLE( newwidth) {
window_p wp;
/* if the command defaults, assume the largest */
if (f == FALSE)
n = term.t_mcol;
/* make sure it's in range */
if (n < 10 || n > term.t_mcol) {
mlwrite("%%Screen width out of range");
return FALSE;
}
if (n < 10 || n > term.t_mcol)
return mloutfail( "%%Screen width out of range") ;
/* otherwise, just re-width it (no big deal) */
term.t_ncol = n;
@ -713,7 +678,7 @@ int newwidth(int f, int n)
int getwpos(void)
{ /* get screen offset of current line in current window */
int sline; /* screen line from top of window */
struct line *lp; /* scannile line pointer */
line_p lp; /* scannile line pointer */
/* search down the line we want */
lp = curwp->w_linep;
@ -731,3 +696,5 @@ void cknewwindow(void)
{
execute(META | SPEC | 'X', FALSE, 1);
}
/* end of window.c */

View File

@ -1,34 +1,35 @@
/* window.h -- window functionality */
#ifndef _WINDOW_H_
#define _WINDOW_H_
#include "defines.h" /* COLOR, SCROLLCODE */
#include "buffer.h" /* buffer, line */
#include "buffer.h" /* buffer_p, line_p */
#include "names.h" /* BINDABLE() */
/*
* There is a window structure allocated for every active display window. The
* windows are kept in a big list, in top to bottom screen order, with the
* listhead at "wheadp". Each window contains its own values of dot and mark.
* The flag field contains some bits that are set by commands to guide
* redisplay. Although this is a bit of a compromise in terms of decoupling,
* the full blown redisplay is just too expensive to run for every input
* character.
/* There is a window structure allocated for every active display window.
The windows are kept in a big list, in top to bottom screen order, with
the listhead at "wheadp". Each window contains its own values of dot
and mark. The flag field contains some bits that are set by commands to
guide redisplay. Although this is a bit of a compromise in terms of
decoupling, the full blown redisplay is just too expensive to run for
every input character.
*/
typedef struct window {
struct window *w_wndp; /* Next window */
struct buffer *w_bufp; /* Buffer displayed in window */
buffer_p w_bufp ; /* Buffer displayed in window */
line_p w_linep ; /* Top line in the window */
line_p w_dotp ; /* Line containing "." */
line_p w_markp ; /* Line containing "mark" */
int w_doto ; /* Byte offset for "." */
int w_marko; /* Byte offset for "mark" */
int w_toprow ; /* Origin 0 top row of window */
int w_ntrows ; /* # of rows of text in window */
char w_force; /* If NZ, forcing row. */
char w_flag; /* Flags. */
#if COLOR
char w_fcolor; /* current forground color */
char w_bcolor; /* current background color */
#endif
int w_marko ; /* Byte offset for "mark" */
int w_toprow ; /* Origin 0 top row of window */
int w_ntrows ; /* # of rows of text in window */
char w_force ; /* If NZ, forcing row. */
char w_flag ; /* Flags. */
# if COLOR
char w_fcolor ; /* current forground color */
char w_bcolor ; /* current background color */
# endif
} *window_p ;
extern window_p curwp ; /* Current window */
@ -44,31 +45,34 @@ extern window_p wheadp ; /* Head of list of windows */
#define WFMODE 0x10 /* Update mode line. */
#define WFCOLR 0x20 /* Needs a color change */
#if SCROLLCODE
#define WFKILLS 0x40 /* something was deleted */
#define WFINS 0x80 /* something was inserted */
#endif
# if SCROLLCODE
# define WFKILLS 0x40 /* something was deleted */
# define WFINS 0x80 /* something was inserted */
# endif
/* Bindable functions */
BINDABLE( delwind) ;
BINDABLE( enlargewind) ;
BINDABLE( mvdnwind) ;
BINDABLE( mvupwind) ;
BINDABLE( newsize) ;
BINDABLE( newwidth) ;
BINDABLE( nextwind) ;
BINDABLE( onlywind) ;
BINDABLE( prevwind) ;
TBINDABLE( redraw) ;
TBINDABLE( reposition) ;
BINDABLE( resize) ;
BINDABLE( restwnd) ;
BINDABLE( savewnd) ;
BINDABLE( scrnextdw) ;
BINDABLE( scrnextup) ;
BINDABLE( shrinkwind) ;
BINDABLE( splitwind) ;
int reposition( int f, int n);
int redraw( int f, int n) ;
int nextwind( int f, int n) ;
int prevwind( int f, int n) ;
int mvdnwind( int f, int n) ;
int mvupwind( int f, int n) ;
int onlywind( int f, int n) ;
int delwind( int f, int n) ;
int splitwind( int f, int n) ;
int enlargewind( int f, int n) ;
int shrinkwind( int f, int n) ;
int resize( int f, int n) ;
int scrnextup( int f, int n) ;
int scrnextdw( int f, int n) ;
int savewnd( int f, int n) ;
int restwnd( int f, int n) ;
int newsize( int f, int n) ;
int newwidth( int f, int n) ;
int getwpos( void) ;
void cknewwindow( void) ;
window_p wpopup( void) ; /* Pop up window creation. */
#endif
/* end of window.h */

160
word.c
View File

@ -1,13 +1,11 @@
/* word.c -- implements word.h */
#include "word.h"
/* word.c
*
* The routines in this file implement commands that work word or a
* paragraph at a time. There are all sorts of word mode commands. If I
* do any sentence mode commands, they are likely to be put in this file.
*
* Modified by Petri Kutvonen
/* The routines in this file implement commands that work word or a
paragraph at a time. There are all sorts of word mode commands. If I
do any sentence mode commands, they are likely to be put in this file.
Modified by Petri Kutvonen
*/
#include <assert.h>
@ -31,18 +29,18 @@ static int justflag = FALSE ; /* justify, don't fill */
static int inword( void) ;
/* Word wrap on n-spaces. Back-over whatever precedes the point on the current
* line and stop on the first word-break or the beginning of the line. If we
* reach the beginning of the line, jump back to the end of the word and start
* a new line. Otherwise, break the line at the word-break, eat it, and jump
* back to the end of the word.
* Returns TRUE on success, FALSE on errors.
*
* @f: default flag.
* @n: numeric argument.
/* Word wrap on n-spaces. Back-over whatever precedes the point on the
current line and stop on the first word-break or the beginning of the
line. If we reach the beginning of the line, jump back to the end of
the word and start a new line. Otherwise, break the line at the
word-break, eat it, and jump back to the end of the word.
Returns TRUE on success, FALSE on errors.
@f: default flag.
@n: numeric argument.
*/
int wrapword(int f, int n)
{
BINDABLE( wrapword) {
int cnt; /* size of word wrapped to next line */
int c; /* charector temporary */
@ -81,11 +79,12 @@ int wrapword(int f, int n)
return TRUE;
}
/* Move the cursor backward by "n" words. All of the details of motion are
* performed by the "backchar" and "forwchar" routines. Error if you try to
* move beyond the buffers.
/* Move the cursor backward by "n" words. All of the details of motion are
performed by the "backchar" and "forwchar" routines. Error if you try
to move beyond the buffers.
*/
int backword( int f, int n) {
BINDABLE( backword) {
if( n < 0)
return forwword( f, -n) ;
@ -106,10 +105,12 @@ int backword( int f, int n) {
return forwchar( FALSE, 1) ;
}
/* Move the cursor forward by the specified number of words. All of the motion
* is done by "forwchar". Error if you try and move beyond the buffer's end.
/* Move the cursor forward by the specified number of words. All of the
motion is done by "forwchar". Error if you try and move beyond the
buffer's end.
*/
int forwword( int f, int n) {
BINDABLE( forwword) {
if( n < 0)
return backword( f, -n) ;
@ -172,40 +173,41 @@ static boolean capcapword( int n, boolean first_f, boolean rest_f) {
return TRUE ;
}
/* Move the cursor forward by the specified number of words. As you move,
* convert any characters to upper case. Error if you try and move beyond the
* end of the buffer. Bound to "M-U".
/* Move the cursor forward by the specified number of words. As you move,
convert any characters to upper case. Error if you try and move beyond
the end of the buffer. Bound to "M-U".
*/
int upperword( int f, int n) {
BINDABLE( upperword) {
return capcapword( n, TRUE, TRUE) ;
}
/* Move the cursor forward by the specified number of words. As you move
* convert characters to lower case. Error if you try and move over the end of
* the buffer. Bound to "M-L".
/* Move the cursor forward by the specified number of words. As you move
convert characters to lower case. Error if you try and move over the
end of the buffer. Bound to "M-L".
*/
int lowerword( int f, int n) {
BINDABLE( lowerword) {
return capcapword( n, FALSE, FALSE) ;
}
/* Move the cursor forward by the specified number of words. As you move
* convert the first character of the word to upper case, and subsequent
* characters to lower case. Error if you try and move past the end of the
* buffer. Bound to "M-C".
/* Move the cursor forward by the specified number of words. As you move
convert the first character of the word to upper case, and subsequent
characters to lower case. Error if you try and move past the end of the
buffer. Bound to "M-C".
*/
int capword( int f, int n) {
BINDABLE( capword) {
return capcapword( n, TRUE, FALSE) ;
}
/*
* Kill forward by "n" words. Remember the location of dot. Move forward by
* the right number of words. Put dot back where it was and issue the kill
* command for the right number of characters. With a zero argument, just
* kill one word and no whitespace. Bound to "M-D".
/* Kill forward by "n" words. Remember the location of dot. Move forward
by the right number of words. Put dot back where it was and issue the
kill command for the right number of characters. With a zero argument,
just kill one word and no whitespace. Bound to "M-D".
*/
int delfword(int f, int n)
{
BINDABLE( delfword) {
line_p dotp; /* original cursor line */
int doto; /* and row */
int c; /* temp char */
@ -285,13 +287,13 @@ int delfword(int f, int n)
return ldelete(size, TRUE);
}
/*
* Kill backwards by "n" words. Move backwards by the desired number of words,
* counting the characters. When dot is finally moved to its resting place,
* fire off the kill command. Bound to "M-Rubout" and to "M-Backspace".
/* Kill backwards by "n" words. Move backwards by the desired number of
words, counting the characters. When dot is finally moved to its
resting place, fire off the kill command. Bound to "M-Rubout" and to
"M-Backspace".
*/
int delbword(int f, int n)
{
BINDABLE( delbword) {
assert( !(curbp->b_mode & MDVIEW)) ;
/* ignore the command if there is a nonpositive argument */
@ -352,17 +354,13 @@ static int parafillnjustify( int f, int n, int justify_f) {
assert( !(curbp->b_mode & MDVIEW)) ;
if (fillcol == 0) { /* no fill column set */
mloutstr( "No fill column set") ;
return FALSE;
}
if( fillcol == 0) /* no fill column set */
return mloutfail( "No fill column set") ;
if( justify_f) {
leftmarg = getccol( FALSE) ;
if (leftmarg + 10 > fillcol) {
mloutstr( "Column too narrow") ;
return FALSE;
}
if( leftmarg + 10 > fillcol)
return mloutfail( "Column too narrow") ;
justflag = justify_f ;
}
@ -472,33 +470,33 @@ static int parafillnjustify( int f, int n, int justify_f) {
return TRUE;
}
/*
* Fill the current paragraph according to the current
/* Fill the current paragraph according to the current
* fill column
*
* f and n - deFault flag and Numeric argument
*/
int fillpara( int f, int n) {
BINDABLE( fillpara) {
return parafillnjustify( f, n, FALSE) ;
}
/* Fill the current paragraph according to the current
* fill column and cursor position
*
* int f, n; deFault flag and Numeric argument
*/
int justpara( int f, int n) {
BINDABLE( justpara) {
return parafillnjustify( f, n, TRUE) ;
}
/*
* delete n paragraphs starting with the current one
/* delete n paragraphs starting with the current one
*
* int f default flag
* int n # of paras to delete
*/
int killpara(int f, int n)
{
BINDABLE( killpara) {
while (n--) { /* for each paragraph to delete */
/* mark out the end and beginning of the para to delete */
@ -525,15 +523,13 @@ int killpara(int f, int n)
}
/*
* wordcount: count the # of words in the marked region,
/* wordcount: count the # of words in the marked region,
* along with average word sizes, # of chars, etc,
* and report on them.
*
* int f, n; ignored numeric arguments
*/
int wordcount(int f, int n)
{
BINDABLE( wordcount) {
line_p lp; /* current line to scan */
int offset; /* current char to scan */
long size; /* size of region left to count */
@ -591,15 +587,14 @@ int wordcount(int f, int n)
return TRUE;
}
/*
* go back to the beginning of the current paragraph
/* go back to the beginning of the current paragraph
* here we look for a <NL><NL> or <NL><TAB> or <NL><SPACE>
* combination to delimit the beginning of a paragraph
*
* int f, n; default Flag & Numeric argument
*/
int gotobop(int f, int n)
{
BINDABLE( gotobop) {
if (n < 0) /* the other way... */
return gotoeop(f, -n);
@ -629,15 +624,14 @@ int gotobop(int f, int n)
return TRUE;
}
/*
* Go forward to the end of the current paragraph
* here we look for a <NL><NL> or <NL><TAB> or <NL><SPACE>
* combination to delimit the beginning of a paragraph
*
* int f, n; default Flag & Numeric argument
/* Go forward to the end of the current paragraph here we look for a
<NL><NL> or <NL><TAB> or <NL><SPACE> combination to delimit the
beginning of a paragraph
int f, n; default Flag & Numeric argument
*/
int gotoeop(int f, int n)
{
BINDABLE( gotoeop) {
if (n < 0) /* the other way... */
return gotobop(f, -n);