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• merge vi_reset() and edit_reset() into x_vi() to allow for following: 

• fix vi mode (which, however, is officially orphaned) multi-line $PS1 by
  using a similar algorithm for prompt skipping as emacs mode (changing
  the meaning of prompt_trunc variable and using prompt_redraw, just even
  more efficiently than vi mode); reported by asarch via IRC
• fix multi-line prompts if last line is “too large” by using emacs mode
  algorithm of just internally appending a newline, while here ☺ this even
  saves us having to re-add the prompt_skip variable…

WARNING: this is only barely tested, as almost nobody ever uses vi mode
⇒ test yourself, there may be bugs (e.g. off-by-ones); already known is
  that the vi input line editing mode is NOT multibyte safe…
This commit is contained in:
tg 2008-09-14 20:24:59 +00:00
parent f341615e2c
commit 977237ad14
3 changed files with 52 additions and 62 deletions
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4
check.t
View File

@ -1,4 +1,4 @@
# $MirOS: src/bin/mksh/check.t,v 1.220 2008/08/02 17:45:10 tg Exp $
# $MirOS: src/bin/mksh/check.t,v 1.221 2008/09/14 20:24:57 tg Exp $
# $OpenBSD: bksl-nl.t,v 1.2 2001/01/28 23:04:56 niklas Exp $
# $OpenBSD: history.t,v 1.5 2001/01/28 23:04:56 niklas Exp $
# $OpenBSD: read.t,v 1.3 2003/03/10 03:48:16 david Exp $
@ -7,7 +7,7 @@
# http://www.research.att.com/~gsf/public/ifs.sh
expected-stdout:
@(#)MIRBSD KSH R35 2008/08/02
@(#)MIRBSD KSH R35 2008/09/14
description:
Check version of shell.
stdin:

106
edit.c
View File

@ -5,7 +5,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.127 2008/05/17 18:46:57 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.128 2008/09/14 20:24:58 tg Exp $");
/* tty driver characters we are interested in */
typedef struct {
@ -3359,7 +3359,6 @@ struct edstate {
};
static int vi_hook(int);
static void vi_reset(char *, size_t);
static int nextstate(int);
static int vi_insert(int);
static int vi_cmd(int, const char *);
@ -3369,7 +3368,6 @@ static void yank_range(int, int);
static int bracktype(int);
static void save_cbuf(void);
static void restore_cbuf(void);
static void edit_reset(char *, size_t);
static int putbuf(const char *, int, int);
static void del_range(int, int);
static int findch(int, int, int, int);
@ -3524,8 +3522,49 @@ x_vi(char *buf, size_t len)
{
int c;
vi_reset(buf, len > LINE ? LINE : len);
pprompt(prompt, prompt_trunc);
state = VNORMAL;
ohnum = hnum = hlast = histnum(-1) + 1;
insert = INSERT;
saved_inslen = inslen;
first_insert = 1;
inslen = 0;
modified = 1;
vi_macro_reset();
es = &ebuf;
es->cbuf = buf;
undo = &undobuf;
undo->cbufsize = es->cbufsize = len > LINE ? LINE : len;
es->linelen = undo->linelen = 0;
es->cursor = undo->cursor = 0;
es->winleft = undo->winleft = 0;
cur_col = promptlen(prompt);
prompt_trunc = (cur_col / x_cols) * x_cols;
cur_col -= prompt_trunc;
pprompt(prompt, 0);
if (cur_col > x_cols - 3 - MIN_EDIT_SPACE) {
prompt_redraw = cur_col = 0;
x_putc('\n');
} else
prompt_redraw = 1;
pwidth = cur_col;
if (!wbuf_len || wbuf_len != x_cols - 3) {
wbuf_len = x_cols - 3;
wbuf[0] = aresize(wbuf[0], wbuf_len, APERM);
wbuf[1] = aresize(wbuf[1], wbuf_len, APERM);
}
(void)memset(wbuf[0], ' ', wbuf_len);
(void)memset(wbuf[1], ' ', wbuf_len);
winwidth = x_cols - pwidth - 3;
win = 0;
morec = ' ';
lastref = 1;
holdlen = 0;
x_flush();
while (1) {
if (macro.p) {
@ -3844,20 +3883,6 @@ vi_hook(int ch)
return 0;
}
static void
vi_reset(char *buf, size_t len)
{
state = VNORMAL;
ohnum = hnum = hlast = histnum(-1) + 1;
insert = INSERT;
saved_inslen = inslen;
first_insert = 1;
inslen = 0;
modified = 1;
vi_macro_reset();
edit_reset(buf, len);
}
static int
nextstate(int ch)
{
@ -4732,43 +4757,6 @@ free_edstate(struct edstate *old)
afree((char *)old, APERM);
}
static void
edit_reset(char *buf, size_t len)
{
es = &ebuf;
es->cbuf = buf;
es->cbufsize = len;
undo = &undobuf;
undo->cbufsize = len;
es->linelen = undo->linelen = 0;
es->cursor = undo->cursor = 0;
es->winleft = undo->winleft = 0;
cur_col = pwidth = promptlen(prompt);
if (pwidth > x_cols - 3 - MIN_EDIT_SPACE) {
cur_col = x_cols - 3 - MIN_EDIT_SPACE;
prompt_trunc = pwidth - cur_col;
pwidth -= prompt_trunc;
} else
prompt_trunc = 0;
if (!wbuf_len || wbuf_len != x_cols - 3) {
wbuf_len = x_cols - 3;
wbuf[0] = aresize(wbuf[0], wbuf_len, APERM);
wbuf[1] = aresize(wbuf[1], wbuf_len, APERM);
}
(void)memset(wbuf[0], ' ', wbuf_len);
(void)memset(wbuf[1], ' ', wbuf_len);
winwidth = x_cols - pwidth - 3;
win = 0;
morec = ' ';
lastref = 1;
holdlen = 0;
}
/*
* this is used for calling x_escape() in complete_word()
*/
@ -5034,7 +5022,8 @@ redraw_line(int newl)
x_putc('\r');
x_putc('\n');
}
pprompt(prompt, prompt_trunc);
if (prompt_redraw)
pprompt(prompt, prompt_trunc);
cur_col = pwidth;
morec = ' ';
}
@ -5189,7 +5178,8 @@ ed_mov_opt(int col, char *wb)
if (col < cur_col) {
if (col + 1 < cur_col - col) {
x_putc('\r');
pprompt(prompt, prompt_trunc);
if (prompt_redraw)
pprompt(prompt, prompt_trunc);
cur_col = pwidth;
while (cur_col++ < col)
x_putcf(*wb++);

4
sh.h
View File

@ -100,9 +100,9 @@
#define __SCCSID(x) __IDSTRING(sccsid,x)
#ifdef EXTERN
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.230 2008/08/02 17:45:12 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.231 2008/09/14 20:24:59 tg Exp $");
#endif
#define MKSH_VERSION "R35 2008/08/02"
#define MKSH_VERSION "R35 2008/09/14"
#ifndef MKSH_INCLUDES_ONLY