f0957ccae4
This is the gsoc-2011 project to clean up and backport multibyte support from other nvi forks in a form we can use. USE_WIDECHAR is on unless building for the rescue crunchgen. This should allow editing in the native locale encoding. USE_ICONV depends on make.conf having 'WITH_ICONV=YES' for now. This adds the ability to do things like edit a KOI8-R file while having $LANG set to (say) en_US.UTF-8. iconv is used to transcode the characters for display. Other points: * It uses gencat and catopen/etc instead of homegrown msg catalog stuff. * A lot of stuff has been trimmed out, eg: the perl and tcl bindings which we could never use in base anyway. * It uses ncursesw when in widechar mode. This could be interesting. GSoC info: http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/zy/1 Repo at: https://github.com/lichray/nvi2 Obtained from: Zhihao Yuan <lichray@gmail.com>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*-
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1992, 1993, 1994, 1995, 1996
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* Keith Bostic. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "$Id: v_screen.c,v 10.12 2001/06/25 15:19:34 skimo Exp $";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <limits.h>
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#include <stdio.h>
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#include "../common/common.h"
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#include "vi.h"
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/*
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* v_screen -- ^W
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* Switch screens.
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*
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* PUBLIC: int v_screen __P((SCR *, VICMD *));
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*/
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int
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v_screen(SCR *sp, VICMD *vp)
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{
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/*
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* You can't leave a colon command-line edit window -- it's not that
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* it won't work, but it gets real weird, real fast when you execute
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* a colon command out of a window that was forked from a window that's
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* now backgrounded... You get the idea.
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*/
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if (F_ISSET(sp, SC_COMEDIT)) {
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msgq(sp, M_ERR,
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"308|Enter <CR> to execute a command, :q to exit");
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return (1);
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}
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/*
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* Try for the next lower screen, or, go back to the first
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* screen on the stack.
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*/
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if (TAILQ_NEXT(sp, q) != NULL)
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sp->nextdisp = TAILQ_NEXT(sp, q);
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else if (TAILQ_FIRST(sp->gp->dq) == sp) {
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msgq(sp, M_ERR, "187|No other screen to switch to");
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return (1);
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} else
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sp->nextdisp = TAILQ_FIRST(sp->gp->dq);
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F_SET(sp->nextdisp, SC_STATUS);
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F_SET(sp, SC_SSWITCH | SC_STATUS);
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return (0);
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}
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