mirror of
https://github.com/rfivet/uemacs.git
synced 2024-12-18 07:16:23 -05:00
bind: code review and minor refactoring.
basic: minor reformatting.
This commit is contained in:
parent
eaf516110f
commit
720603ac8e
1
basic.c
1
basic.c
@ -320,6 +320,7 @@ boolean setmark( int f, int n) {
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return TRUE ;
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}
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/* Swap the values of "." and "mark" in the current window. If no mark as
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been previously set, set it. Bound to C-X C-X exchange-point-and-mark.
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*/
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389
bind.c
389
bind.c
@ -9,24 +9,22 @@
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "estruct.h"
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#include "bindable.h"
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#include "buffer.h"
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#include "display.h"
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#include "display.h" /* upmode(), ostring() */
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#include "exec.h"
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#include "file.h"
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#include "flook.h"
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#include "input.h"
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#include "line.h"
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#include "mlout.h"
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#include "names.h"
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#include "util.h"
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#include "window.h"
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static int buildlist( char *mstring) ;
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static char *cmdstr( unsigned c, char *seq) ;
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static unsigned int getckey( int mflag) ;
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@ -34,124 +32,122 @@ static unsigned int stock( char *keyname) ;
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static const char *getfname( unsigned keycode, const char *failmsg) ;
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static boolean cmdfail( const char *msg) {
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mlwrite( "%s", msg) ;
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return FALSE ;
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}
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/* give me some help!!!! bring up a fake buffer and read the help file into
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it with view mode
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*/
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BINDABLE( help) {
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/* give me some help!!!!
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bring up a fake buffer and read the help file into it with view mode */
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char *fname = NULL; /* ptr to file returned by flook() */
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/* first check if we are already here */
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buffer_p bp = bfind( hlpfname, FALSE, BFINVS);
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if( bp == curbp)
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return TRUE ;
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if( bp == curbp)
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return TRUE ;
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if( bp == NULL) {
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fname = flook( hlpfname, FALSE) ;
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if( fname == NULL)
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return cmdfail( "(Help file is not online)") ;
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return mloutfail( "(Help file is not online)") ;
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}
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/* split the current window to make room for the help stuff */
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if( wheadp->w_wndp == NULL /* One window */
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&& splitwind( FALSE, 1) == FALSE) /* Split it */
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if( wheadp->w_wndp == NULL /* One window */
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&& splitwind( FALSE, 1) == FALSE) /* Split it */
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return FALSE ;
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if (bp == NULL) {
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/* and read the stuff in */
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if (getfile(fname, FALSE) == FALSE)
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return FALSE;
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if( bp == NULL) {
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/* and read the stuff in */
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if( getfile( fname, FALSE) == FALSE)
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return FALSE ;
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} else
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swbuffer( bp) ;
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swbuffer( bp) ;
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/* make this window in VIEW mode, update all mode lines */
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curwp->w_bufp->b_mode |= MDVIEW;
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curwp->w_bufp->b_flag |= BFINVS;
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upmode() ;
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return TRUE;
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return TRUE ;
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}
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static boolean invalidkey( void) {
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return cmdfail( "(Invalid key sequence)") ;
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return mloutfail( "(Invalid key sequence)") ;
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}
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/* describe the command for a certain key */
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BINDABLE( deskey) {
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const char cmdname[] = "describe-key" ;
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char outseq[ NSTRING] ; /* output buffer for command sequence */
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const char cmdname[] = "describe-key" ;
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char outseq[ 8] ; /* output buffer for keystroke sequence */
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/* prompt the user to type a key to describe */
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mlwrite( "%s: ", cmdname) ;
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mloutfmt( "%s: ", cmdname) ;
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/* get the command sequence to describe
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* change it to something we can print as well */
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unsigned keycode = getckey( FALSE) ;
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if( keycode == (unsigned) ~0)
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return invalidkey() ;
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if( keycode == (unsigned) ~0)
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return invalidkey() ;
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/* output the command sequence */
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mlwrite( "%s %s: 0x%x, %s", cmdname, cmdstr( keycode, outseq), keycode,
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mloutfmt( "%s %s: 0x%x, %s", cmdname, cmdstr( keycode, outseq), keycode,
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getfname( keycode, "Not Bound")) ;
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return TRUE ;
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}
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/*
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* bindtokey:
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/* bindtokey:
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* add a new key to the key binding table
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*
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* int f, n; command arguments [IGNORED]
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*/
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BINDABLE( bindtokey) {
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kbind_p ktp ; /* pointer into the command table */
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char outseq[ 80] ; /* output buffer for keystroke sequence */
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kbind_p ktp ; /* pointer into the command table */
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char outseq[ 8] ; /* output buffer for keystroke sequence */
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/* prompt the user to type in a key to bind */
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mlwrite("bind-to-key: ");
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mloutstr( "bind-to-key: ") ;
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/* get the function name to bind it to */
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nbind_p nbp = getname() ;
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if( nbp == NULL) /* abort */
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return FALSE ;
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nbind_p nbp = getname() ;
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if( nbp == NULL) /* abort */
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return FALSE ;
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fnp_t kfunc = nbp->n_func ;
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if( kfunc == NULL)
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return cmdfail( "(No such function)") ;
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return mloutfail( "(No such function)") ;
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mlwrite( "bind-to-key %s: ", bind_name( nbp)) ;
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mloutfmt( "bind-to-key %s: ", bind_name( nbp)) ;
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/* get the command sequence to bind */
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boolean prefix_f = (kfunc == metafn) || (kfunc == cex) ||
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(kfunc == unarg) || (kfunc == ctrlg) ;
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boolean prefix_f = (kfunc == metafn) || (kfunc == cex) ||
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(kfunc == unarg) || (kfunc == ctrlg) ;
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int c = getckey( prefix_f) ;
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if( c == ~0)
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return invalidkey() ;
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if( c == ~0)
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return invalidkey() ;
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/* change it to something we can print as well */
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/* and dump it out */
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ostring( cmdstr( c, outseq)) ;
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/* key sequence can't be an active prefix key */
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if( c == metac || c == ctlxc || c == reptc || c == abortc) {
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if( (c == metac && kfunc == metafn)
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|| (c == ctlxc && kfunc == cex)
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|| (c == reptc && kfunc == unarg)
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|| (c == abortc && kfunc == ctrlg))
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return TRUE ;
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if( c == metac || c == ctlxc || c == reptc || c == abortc) {
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if( (c == metac && kfunc == metafn)
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|| (c == ctlxc && kfunc == cex)
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|| (c == reptc && kfunc == unarg)
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|| (c == abortc && kfunc == ctrlg))
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return TRUE ; /* be silent if keep current */
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return cmdfail( "(Can't bind to active prefix)") ;
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}
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return mloutfail( "(Can't bind to active prefix)") ;
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}
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/* if the function is a prefix key */
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if( prefix_f) {
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if( prefix_f) {
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/* remove existing binding for the prefix */
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for( ktp = keytab ; ktp->k_code != 0 ; ktp++)
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if( ktp->k_nbp == nbp) {
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delkeybinding( ktp->k_code) ;
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break ;
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}
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delkeybinding( ktp->k_code) ;
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break ;
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}
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/* set the appropriate global prefix variable */
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if( kfunc == metafn)
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@ -164,49 +160,47 @@ BINDABLE( bindtokey) {
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abortc = c ;
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}
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ktp = setkeybinding( c, nbp) ;
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if( ktp->k_code == 0)
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return cmdfail( "Binding table FULL!") ;
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ktp = setkeybinding( c, nbp) ;
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if( ktp->k_code == 0)
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return mloutfail( "Binding table FULL!") ;
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return TRUE ;
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return TRUE ;
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}
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/*
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* unbindkey:
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/* unbindkey:
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* delete a key from the key binding table
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*
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* int f, n; command arguments [IGNORED]
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*/
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BINDABLE( unbindkey) {
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char outseq[ 80] ; /* output buffer for keystroke sequence */
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char outseq[ 8] ; /* output buffer for keystroke sequence */
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/* prompt the user to type in a key to unbind */
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mlwrite( "unbind-key: ") ;
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mloutstr( "unbind-key: ") ;
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/* get the command sequence to unbind */
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int c = getckey( FALSE) ; /* get a command sequence */
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if( c == ~0)
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return invalidkey() ;
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int c = getckey( FALSE) ; /* get a command sequence */
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if( c == ~0)
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return invalidkey() ;
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/* change it to something we can print as well */
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/* and dump it out */
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ostring( cmdstr( c, outseq)) ;
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/* prefix key sequence can't be undound, just redefined */
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if( c == reptc || c == abortc)
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return cmdfail( "(Can't unbind prefix)") ;
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if( c == reptc || c == abortc)
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return mloutfail( "(Can't unbind prefix)") ;
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/* if it isn't bound, bitch */
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if( delkeybinding( c) == FALSE) {
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mlwrite( "(Key not bound)") ;
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return FALSE ;
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}
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if( delkeybinding( c) == FALSE)
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return mloutfail( "(Key not bound)") ;
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return TRUE ;
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return TRUE ;
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}
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/*
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* does source include sub?
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/* does source include sub?
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*
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* char *source; string to search in
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* char *sub; substring to look for
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@ -214,8 +208,8 @@ BINDABLE( unbindkey) {
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static boolean strinc( const char *source, const char *sub) {
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/* for each character in the source string */
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for( ; *source ; source++) {
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const char *nxtsp ; /* next ptr into source */
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const char *tp ; /* ptr into substring */
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const char *nxtsp ; /* next ptr into source */
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const char *tp ; /* ptr into substring */
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nxtsp = source;
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@ -232,6 +226,7 @@ static boolean strinc( const char *source, const char *sub) {
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return FALSE ;
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}
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/* describe bindings
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* bring up a fake buffer and list the key bindings
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* into it with view mode
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@ -240,168 +235,166 @@ BINDABLE( desbind) {
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return buildlist( "") ;
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}
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/* Apropos (List functions that match a substring) */
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BINDABLE( apro) {
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char *mstring ; /* string to match cmd names to */
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char *mstring ; /* string to match cmd names to */
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int status = newmlarg( &mstring, "apropos: ", 0) ;
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if( status == TRUE) {
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status = buildlist( mstring) ;
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free( mstring) ;
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} else if( status == FALSE)
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status = buildlist( "") ; /* build list of all commands */
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if( status == TRUE) {
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status = buildlist( mstring) ;
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free( mstring) ;
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} else if( status == FALSE)
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status = buildlist( "") ; /* build list of all commands */
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return status ;
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}
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/*
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* build a binding list (limited or full)
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/* build a binding list (limited or full)
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*
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* char *mstring; match string if a partial list, "" matches all
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*/
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static int buildlist( char *mstring) {
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struct window *wp; /* scanning pointer to windows */
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kbind_p ktp; /* pointer into the command table */
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nbind_p nptr;/* pointer into the name binding table */
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struct buffer *bp; /* buffer to put binding list into */
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char outseq[80]; /* output buffer for keystroke sequence */
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#define PADDING 28
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char outseq[ PADDING + 8] ; /* output buffer for command + keystroke */
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/* split the current window to make room for the binding list */
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if( wheadp->w_wndp == NULL /* One window */
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&& splitwind( FALSE, 1) == FALSE) /* Split it */
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return FALSE;
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/* split the current window to make room for the binding list */
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if( wheadp->w_wndp == NULL /* One window */
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&& splitwind( FALSE, 1) == FALSE) /* Split it */
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return FALSE ;
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/* and get a buffer for it */
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bp = bfind("*Binding list*", TRUE, 0);
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/* and get a buffer for it */
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buffer_p bp = bfind( "*Binding list*", TRUE, 0) ;
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if( bp == NULL || bclear( bp) == FALSE)
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return cmdfail( "Can't display binding list") ;
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return mloutfail( "Can't display binding list") ;
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/* let us know this is in progress */
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mlwrite("(Building binding list)");
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/* let us know this is in progress */
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mloutstr( "(Building binding list)") ;
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/* disconnect the current buffer */
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if (--curbp->b_nwnd == 0) { /* Last use. */
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curbp->b_dotp = curwp->w_dotp;
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curbp->b_doto = curwp->w_doto;
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curbp->b_markp = curwp->w_markp;
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curbp->b_marko = curwp->w_marko;
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/* disconnect the current buffer */
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if( --curbp->b_nwnd == 0) { /* Last use. */
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curbp->b_dotp = curwp->w_dotp ;
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curbp->b_doto = curwp->w_doto ;
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curbp->b_markp = curwp->w_markp ;
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curbp->b_marko = curwp->w_marko ;
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}
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/* connect the current window to this buffer */
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curbp = bp; /* make this buffer current in current window */
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bp->b_mode = 0; /* no modes active in binding list */
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bp->b_nwnd++; /* mark us as more in use */
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wp = curwp;
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wp->w_bufp = bp;
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wp->w_linep = bp->b_linep;
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wp->w_flag = WFHARD | WFFORCE;
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wp->w_dotp = bp->b_dotp;
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wp->w_doto = bp->b_doto;
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wp->w_markp = NULL;
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wp->w_marko = 0;
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/* connect the current window to this buffer */
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curbp = bp ; /* make this buffer current in current window */
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bp->b_mode = 0 ; /* no modes active in binding list */
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bp->b_nwnd++ ; /* mark us as more in use */
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window_p wp = curwp ;
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wp->w_bufp = bp ;
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wp->w_linep = bp->b_linep ;
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wp->w_flag = WFHARD | WFFORCE ;
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wp->w_dotp = bp->b_dotp ;
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wp->w_doto = bp->b_doto ;
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wp->w_markp = NULL ;
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wp->w_marko = 0 ;
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/* build the contents of this window, inserting it line by line */
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for( nptr = names ; nptr->n_func != NULL ; nptr++) {
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int cpos ; /* current position to use in outseq */
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/* build the contents of this window, inserting it line by line */
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for( nbind_p nptr = names ; nptr->n_func != NULL ; nptr++) {
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int cpos ; /* current position to use in outseq */
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/* if we are executing an apropos command..... */
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/* and current string doesn't include the search string */
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if( *mstring && strinc( bind_name( nptr), mstring) == FALSE)
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continue ;
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continue ;
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/* add in the command name */
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mystrscpy( outseq, bind_name( nptr), sizeof outseq) ;
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cpos = strlen(outseq);
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cpos = strlen( outseq) ;
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/* search down any keys bound to this */
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for( ktp = keytab ; ktp->k_code != 0 ; ktp++) {
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for( kbind_p ktp = keytab ; ktp->k_code != 0 ; ktp++) {
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if( ktp->k_nbp == nptr) {
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/* padd out some spaces */
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while (cpos < 28)
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outseq[cpos++] = ' ';
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/* padd out some spaces */
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while( cpos < PADDING)
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outseq[ cpos++] = ' ' ;
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/* add in the command sequence */
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cmdstr(ktp->k_code, &outseq[cpos]);
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strcat(outseq, "\n");
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/* add in the command sequence */
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cmdstr( ktp->k_code, &outseq[ cpos]) ;
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strcat( outseq, "\n") ;
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/* and add it as a line into the buffer */
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if (linstr(outseq) != TRUE)
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return FALSE;
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/* and add it as a line into the buffer */
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if( linstr( outseq) != TRUE)
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return FALSE ;
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cpos = 0; /* and clear the line */
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cpos = 0 ; /* and clear the line */
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}
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}
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/* if no key was bound, we need to dump it anyway */
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if (cpos > 0) {
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outseq[cpos++] = '\n';
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outseq[cpos] = 0;
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if (linstr(outseq) != TRUE)
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return FALSE;
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if( cpos > 0) {
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outseq[ cpos++] = '\n';
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outseq[ cpos] = 0;
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if( linstr( outseq) != TRUE)
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return FALSE ;
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}
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}
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bp->b_mode |= MDVIEW; /* put this buffer view mode */
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bp->b_flag &= ~BFCHG; /* don't flag this as a change */
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wp->w_dotp = lforw(bp->b_linep); /* back to the beginning */
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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) {
|
||||
@ -411,8 +404,8 @@ static char *cmdstr( unsigned c, char *seq) {
|
||||
|
||||
/* apply ^X sequence if needed */
|
||||
if( c & CTLX) {
|
||||
if( ctlxc & CTRL)
|
||||
*ptr++ = '^' ;
|
||||
if( ctlxc & CTRL)
|
||||
*ptr++ = '^' ;
|
||||
|
||||
*ptr++ = ctlxc & ~PRFXMASK ;
|
||||
}
|
||||
@ -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
|
||||
*
|
||||
@ -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 ;
|
||||
*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
6
bind.h
@ -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 */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user