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-rw-r--r--ChangeLog4
-rw-r--r--Functions/Zle/narrow-to-region36
-rw-r--r--Src/Zle/zle_utils.c33
3 files changed, 36 insertions, 37 deletions
diff --git a/ChangeLog b/ChangeLog
index 104ac2c73..dfe254a21 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
2015-08-13 Oliver Kiddle <opk@zsh.org>
+ * 36131: Functions/Zle/narrow-to-region, Src/Zle/zle_utils.c:
+ make use of undo limits; call mkundoent() when $UNDO_CHANGE_NO is
+ referenced for a clear change number marking the current state
+
* Eric Cook: 36113: Completion/Unix/Type/_find_net_interfaces:
ip(8) may add suffixes which is not good for completion matches
diff --git a/Functions/Zle/narrow-to-region b/Functions/Zle/narrow-to-region
index 293f89b0f..0ef28a8dc 100644
--- a/Functions/Zle/narrow-to-region
+++ b/Functions/Zle/narrow-to-region
@@ -26,11 +26,13 @@
# statevar may not begin with the prefix "_ntr_" which is reserved for
# parameters within narrow-to-region.
-emulate -L zsh
-setopt extendedglob
+# set the minimum of options to avoid changing behaviour away from
+# user preferences from within recursive-edit
+setopt localoptions noshwordsplit noksharrays
-local _ntr_lbuf_return _ntr_rbuf_return
+local _ntr_newbuf _ntr_lbuf_return _ntr_rbuf_return
local _ntr_predisplay=$PREDISPLAY _ntr_postdisplay=$POSTDISPLAY
+integer _ntr_savelim=UNDO_LIMIT_NO _ntr_changeno
integer _ntr_start _ntr_end _ntr_swap _ntr_cursor=$CURSOR _ntr_mark=$MARK
integer _ntr_stat
@@ -61,7 +63,7 @@ done
(( OPTIND > 1 )) && shift $(( OPTIND - 1 ))
if [[ $_ntr_restore = _ntr_* || $_ntr_save = _ntr_* ||
- $_ntr_lbuf_return = _ntr_* || $ntr_rbuf_return = _ntr_* ]]; then
+ $_ntr_lbuf_return = _ntr_* || $_ntr_rbuf_return = _ntr_* ]]; then
zle -M "$0: _ntr_ prefix is reserved" >&2
return 1
fi
@@ -86,30 +88,34 @@ if [[ -n $_ntr_save || -z $_ntr_restore ]]; then
_ntr_end=_ntr_swap
fi
- (( _ntr_end++, _ntr_cursor -= _ntr_start, _ntr_mark -= _ntr_start ))
+ (( _ntr_cursor -= _ntr_start, _ntr_mark -= _ntr_start ))
_ntr_lbuffer=${BUFFER[1,_ntr_start]}
if [[ -z $_ntr_usepretext || ( -n $_ntr_nonempty && -z $_ntr_lbuffer ) ]]
then
_ntr_pretext=$_ntr_lbuffer
fi
- _ntr_rbuffer=${BUFFER[_ntr_end,-1]}
+ _ntr_rbuffer=${BUFFER[_ntr_end+1,-1]}
if [[ -z $_ntr_useposttext || ( -n $_ntr_nonempty && -z $_ntr_rbuffer ) ]]
then
_ntr_posttext=$_ntr_rbuffer
fi
+ _ntr_changeno=$UNDO_CHANGE_NO
PREDISPLAY="$_ntr_predisplay$_ntr_pretext"
POSTDISPLAY="$_ntr_posttext$_ntr_postdisplay"
if [[ -n $_ntr_save ]]; then
builtin typeset -ga $_ntr_save
set -A $_ntr_save "${_ntr_predisplay}" "${_ntr_postdisplay}" \
- "${_ntr_lbuffer}" "${_ntr_rbuffer}" || return 1
+ "${_ntr_savelim}" "${_ntr_changeno}" \
+ "${_ntr_start}" "${_ntr_end}" || return 1
fi
- BUFFER=${BUFFER[_ntr_start+1,_ntr_end-1]}
+ BUFFER=${BUFFER[_ntr_start+1,_ntr_end]}
CURSOR=$_ntr_cursor
MARK=$_ntr_mark
+ zle split-undo
+ UNDO_LIMIT_NO=$UNDO_CHANGE_NO
fi
if [[ -z $_ntr_save && -z $_ntr_restore ]]; then
@@ -126,18 +132,22 @@ if [[ -n $_ntr_restore || -z $_ntr_save ]]; then
if [[ -n $_ntr_restore ]]; then
if ! { _ntr_predisplay="${${(@P)_ntr_restore}[1]}"
_ntr_postdisplay="${${(@P)_ntr_restore}[2]}"
- _ntr_lbuffer="${${(@P)_ntr_restore}[3]}"
- _ntr_rbuffer="${${(@P)_ntr_restore}[4]}" }; then
+ _ntr_savelim="${${(@P)_ntr_restore}[3]}"
+ _ntr_changeno="${${(@P)_ntr_restore}[4]}"
+ _ntr_start="${${(@P)_ntr_restore}[5]}"
+ _ntr_end="${${(@P)_ntr_restore}[6]}" }; then
zle -M Failed. >&2
return 1
fi
fi
+ _ntr_newbuf="$BUFFER"
+ zle undo $_ntr_changeno
PREDISPLAY=$_ntr_predisplay
POSTDISPLAY=$_ntr_postdisplay
- LBUFFER="$_ntr_lbuffer$BUFFER"
- RBUFFER="$_ntr_rbuffer"
- MARK=${#_ntr_lbuffer}
+ BUFFER[_ntr_start+1,_ntr_end]="$_ntr_newbuf"
+ (( MARK = _ntr_start, CURSOR = _ntr_start + ${#_ntr_newbuf} ))
+ UNDO_LIMIT_NO=_ntr_savelim
fi
return $_ntr_stat
diff --git a/Src/Zle/zle_utils.c b/Src/Zle/zle_utils.c
index 8b55403b3..d1d320613 100644
--- a/Src/Zle/zle_utils.c
+++ b/Src/Zle/zle_utils.c
@@ -1409,10 +1409,6 @@ zlong undo_changeno;
zlong undo_limitno;
-/* If non-zero, the last increment to undo_changeno was for the variable */
-
-static int undo_set_by_variable;
-
/**/
void
initundo(void)
@@ -1423,7 +1419,6 @@ initundo(void)
curchange->del = curchange->ins = NULL;
curchange->dell = curchange->insl = 0;
curchange->changeno = undo_changeno = undo_limitno = 0;
- undo_set_by_variable = 0;
lastline = zalloc((lastlinesz = linesz) * ZLE_CHAR_SIZE);
ZS_memcpy(lastline, zleline, (lastll = zlell));
lastcs = zlecs;
@@ -1549,7 +1544,6 @@ mkundoent(void)
ch->prev = NULL;
}
ch->changeno = ++undo_changeno;
- undo_set_by_variable = 0;
endnextchanges = ch;
}
@@ -1584,14 +1578,13 @@ undo(char **args)
struct change *prev = curchange->prev;
if(!prev)
return 1;
- if (prev->changeno < last_change)
+ if (prev->changeno <= last_change)
break;
- if (prev->changeno < undo_limitno && !*args)
+ if (prev->changeno <= undo_limitno && !*args)
return 1;
- if (unapplychange(prev))
- curchange = prev;
- else
- break;
+ if (!unapplychange(prev) && last_change >= 0)
+ unapplychange(prev);
+ curchange = prev;
} while (last_change >= (zlong)0 || (curchange->flags & CH_PREV));
setlastline();
return 0;
@@ -1741,18 +1734,10 @@ zlecallhook(char *name, char *arg)
zlong
get_undo_current_change(UNUSED(Param pm))
{
- if (undo_set_by_variable) {
- /* We were the last to increment this, doesn't need another one. */
- return undo_changeno;
- }
- undo_set_by_variable = 1;
- /*
- * Increment the number in case a change is in progress;
- * we don't want to back off what's already been done when
- * we return to this change number. This eliminates any
- * problem about the point where a change is numbered
- */
- return ++undo_changeno;
+ /* add entry for any pending changes */
+ mkundoent();
+ setlastline();
+ return undo_changeno;
}
/**/