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| author | Oliver Kiddle <opk@zsh.org> | 2015-08-13 16:18:26 +0200 |
|---|---|---|
| committer | Oliver Kiddle <opk@zsh.org> | 2015-08-13 16:18:26 +0200 |
| commit | 832130c57dedc532191512045096180657a049f3 (patch) | |
| tree | 44338195834748b7d160e9d09c00c70b6902f36b /Functions/Zle/narrow-to-region | |
| parent | f158e5c4cf7480447f3a4837f729e4dfeedd3317 (diff) | |
| download | zsh-832130c57dedc532191512045096180657a049f3.tar.gz zsh-832130c57dedc532191512045096180657a049f3.tar.xz zsh-832130c57dedc532191512045096180657a049f3.zip | |
36131: make use of undo limits; call mkundoent() when $UNDO_CHANGE_NO is referenced for a clear change number marking the current state
Diffstat (limited to 'Functions/Zle/narrow-to-region')
| -rw-r--r-- | Functions/Zle/narrow-to-region | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/Functions/Zle/narrow-to-region b/Functions/Zle/narrow-to-region index 293f89b0f..0ef28a8dc 100644 --- a/Functions/Zle/narrow-to-region +++ b/Functions/Zle/narrow-to-region @@ -26,11 +26,13 @@ # statevar may not begin with the prefix "_ntr_" which is reserved for # parameters within narrow-to-region. -emulate -L zsh -setopt extendedglob +# set the minimum of options to avoid changing behaviour away from +# user preferences from within recursive-edit +setopt localoptions noshwordsplit noksharrays -local _ntr_lbuf_return _ntr_rbuf_return +local _ntr_newbuf _ntr_lbuf_return _ntr_rbuf_return local _ntr_predisplay=$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 |