From 689534dee9de48c647c7819a955fe94f87b70027 Mon Sep 17 00:00:00 2001 From: Koichi Murase Date: Sat, 19 Feb 2022 09:45:46 +0900 Subject: [PATCH] trap: fix initialization order of "{save,restore}-BASH_REMATCH" - fix the initialization order of "ble-edit/exec/{save,restore}-BASH_REMATCH" - refactor "{ble-edit/exec => ble/base}/{adjust,restore}-BASH_REMATCH" - restore BASH_REMATCH for "source ble.sh" --- ble.pp | 214 ++++++++++++++++++++++++++++++++++++---------- docs/ChangeLog.md | 1 + note.txt | 49 +++++++++++ src/decode.sh | 4 +- src/edit.sh | 111 ++---------------------- src/history.sh | 4 +- src/util.sh | 7 +- 7 files changed, 236 insertions(+), 154 deletions(-) diff --git a/ble.pp b/ble.pp index 5966b9a0..4910b164 100644 --- a/ble.pp +++ b/ble.pp @@ -449,9 +449,158 @@ function ble/base/recover-bash-options { return 1 2>/dev/null || builtin exit 1 fi -_ble_init_original_IFS_set=${IFS+set} -_ble_init_original_IFS=$IFS -IFS=$' \t\n' +#-------------------------------------- +# save IFS / BASH_REMATCH + +function ble/init/adjust-IFS { + _ble_init_original_IFS_set=${IFS+set} + _ble_init_original_IFS=$IFS + IFS=$' \t\n' +} +function ble/init/restore-IFS { + if [[ $_ble_init_original_IFS_set ]]; then + IFS=$_ble_init_original_IFS + else + builtin unset -v IFS + fi + builtin unset -v _ble_init_original_IFS_set + builtin unset -v _ble_init_original_IFS +} + +if ((_ble_bash>=50100)); then + _ble_bash_BASH_REMATCH_level=0 + _ble_bash_BASH_REMATCH=() + function ble/base/adjust-BASH_REMATCH { + ((_ble_bash_BASH_REMATCH_level++==0)) || return 0 + _ble_bash_BASH_REMATCH=("${BASH_REMATCH[@]}") + } + function ble/base/restore-BASH_REMATCH { + ((_ble_bash_BASH_REMATCH_level>0&& + --_ble_bash_BASH_REMATCH_level==0)) || return 0 + BASH_REMATCH=("${_ble_bash_BASH_REMATCH[@]}") + } + +else + _ble_bash_BASH_REMATCH_level=0 + _ble_bash_BASH_REMATCH=() + _ble_bash_BASH_REMATCH_rex=none + + ## @fn ble/base/adjust-BASH_REMATCH/increase delta + ## @param[in] delta + ## @var[in,out] i rex + function ble/base/adjust-BASH_REMATCH/increase { + local delta=$1 + ((delta)) || return 1 + ((i+=delta)) + if ((delta==1)); then + rex=$rex. + else + rex=$rex.{$delta} + fi + } + function ble/base/adjust-BASH_REMATCH/is-updated { + local i n=${#_ble_bash_BASH_REMATCH[@]} + ((n!=${#BASH_REMATCH[@]})) && return 0 + for ((i=0;i=0)) + } + function ble/base/adjust-BASH_REMATCH { + ((_ble_bash_BASH_REMATCH_level++==0)) || return 0 + ble/base/adjust-BASH_REMATCH/is-updated || return 1 + + local size=${#BASH_REMATCH[@]} + if ((size==0)); then + _ble_bash_BASH_REMATCH=() + _ble_bash_BASH_REMATCH_rex=none + return 0 + fi + + local rex= i=0 + local text=$BASH_REMATCH sub ret isub + + local -a rparens=() + local isub rex i=0 count=0 + for ((isub=1;isub=1)); do + local end=${rparens[count-1]} + if ble/base/adjust-BASH_REMATCH/.find-substr "${text:i:end-i}" "$sub"; then + ble/base/adjust-BASH_REMATCH/increase "$ret" + ((rparens[count++]=i+${#sub})) + rex=$rex'(' + break + else + ble/base/adjust-BASH_REMATCH/increase $((end-i)) + rex=$rex')' + builtin unset -v 'rparens[--count]' + fi + done + + ((count>0)) && continue + + # 新しい子一致 + if ble/base/adjust-BASH_REMATCH/.find-substr "${text:i}" "$sub"; then + ble/base/adjust-BASH_REMATCH/increase "$ret" + ((rparens[count++]=i+${#sub})) + rex=$rex'(' + else + break # 復元失敗 + fi + done + + while ((count>=1)); do + local end=${rparens[count-1]} + ble/base/adjust-BASH_REMATCH/increase $((end-i)) + rex=$rex')' + builtin unset -v 'rparens[--count]' + done + + ble/base/adjust-BASH_REMATCH/increase $((${#text}-i)) + + _ble_bash_BASH_REMATCH=("${BASH_REMATCH[@]}") + _ble_bash_BASH_REMATCH_rex=$rex + } + function ble/base/restore-BASH_REMATCH { + ((_ble_bash_BASH_REMATCH_level>0&& + --_ble_bash_BASH_REMATCH_level==0)) || return 0 + [[ $_ble_bash_BASH_REMATCH =~ $_ble_bash_BASH_REMATCH_rex ]] + } +fi + +ble/init/adjust-IFS +ble/base/adjust-BASH_REMATCH + +## @fn ble/init/clean-up [opts] +function ble/init/clean-up { + local ext=$? opts=$1 # preserve exit status + + # 一時グローバル変数消去 + builtin unset -v _ble_init_version + builtin unset -v _ble_init_arg + builtin unset -v _ble_init_exit + builtin unset -v _ble_init_command + builtin unset -v _ble_init_attached + + # 状態復元 + ble/base/restore-BASH_REMATCH + ble/init/restore-IFS + if [[ :$opts: != *:check-attach:* && ! $_ble_attached ]]; then + ble/base/restore-bash-options + ble/base/restore-POSIXLY_CORRECT + ble/base/restore-builtin-wrappers + builtin eval -- "$_ble_bash_FUNCNEST_restore" + fi + return "$ext" +} #------------------------------------------------------------------------------ # read arguments @@ -560,10 +709,7 @@ function ble/base/read-blesh-arguments { } if ! ble/base/read-blesh-arguments "$@"; then builtin echo "ble.sh: cancel initialization." >&2 - ble/base/restore-bash-options - ble/base/restore-builtin-wrappers - ble/base/restore-POSIXLY_CORRECT - builtin eval -- "$_ble_bash_FUNCNEST_restore" + ble/init/clean-up 2>/dev/null # set -x 対策 #D0930 return 2 2>/dev/null || builtin exit 2 fi @@ -571,10 +717,7 @@ function ble/base/read-blesh-arguments { [[ $_ble_init_command ]] && _ble_init_attached=$_ble_attached if ! ble/base/unload-for-reload; then builtin echo "ble.sh: an old version of ble.sh seems to be already loaded." >&2 - ble/base/restore-bash-options - ble/base/restore-builtin-wrappers - ble/base/restore-POSIXLY_CORRECT - builtin eval -- "$_ble_bash_FUNCNEST_restore" + ble/init/clean-up 2>/dev/null # set -x 対策 #D0930 return 1 2>/dev/null || builtin exit 1 fi fi @@ -668,7 +811,7 @@ function ble/bin/.freeze-utility-path { # POSIX utilities _ble_init_posix_command_list=(sed date rm mkdir mkfifo sleep stty tty sort awk chmod grep cat wc mv sh od cp) -function ble/.check-environment { +function ble/init/check-environment { if ! ble/bin#has "${_ble_init_posix_command_list[@]}"; then local cmd commandMissing= for cmd in "${_ble_init_posix_command_list[@]}"; do @@ -676,7 +819,7 @@ function ble/.check-environment { commandMissing="$commandMissing\`$cmd', " fi done - ble/util/print "ble.sh: Insane environment: The command(s), ${commandMissing}not found. Check your environment variable PATH." >&2 + ble/util/print "ble.sh: insane environment: The command(s), ${commandMissing}not found. Check your environment variable PATH." >&2 # try to fix PATH local default_path=$(command -p getconf PATH 2>/dev/null) @@ -694,7 +837,7 @@ function ble/.check-environment { fi if [[ ! $USER ]]; then - ble/util/print "ble.sh: Insane environment: \$USER is empty." >&2 + ble/util/print "ble.sh: insane environment: \$USER is empty." >&2 if type id &>/dev/null; then export USER=$(id -un) ble/util/print "ble.sh: modified USER=$USER" >&2 @@ -706,8 +849,10 @@ function ble/.check-environment { return 0 } -if ! ble/.check-environment; then - _ble_bash= +if ! ble/init/check-environment; then + ble/util/print "ble.sh: failed to adjust the environment. canceling the load of ble.sh." 1>&2 + builtin unset -v _ble_bash BLE_VERSION BLE_VERSINFO + ble/init/clean-up 2>/dev/null # set -x 対策 #D0930 return 1 fi @@ -909,6 +1054,8 @@ function ble/bin/.load-builtin { # ble/bin/.load-builtin mkfifo # ble/bin/.load-builtin rm +#------------------------------------------------------------------------------ + function ble/base/.create-user-directory { local var=$1 dir=$2 if [[ ! -d $dir ]]; then @@ -971,6 +1118,7 @@ function ble/base/initialize-base-directory { if ! ble/base/initialize-base-directory "${BASH_SOURCE[0]}"; then ble/util/print "ble.sh: ble base directory not found!" 1>&2 builtin unset -v _ble_bash BLE_VERSION BLE_VERSINFO + ble/init/clean-up 2>/dev/null # set -x 対策 #D0930 return 1 fi @@ -1046,6 +1194,7 @@ function ble/base/initialize-runtime-directory { if ! ble/base/initialize-runtime-directory; then ble/util/print "ble.sh: failed to initialize \$_ble_base_run." 1>&2 builtin unset -v _ble_bash BLE_VERSION BLE_VERSINFO + ble/init/clean-up 2>/dev/null # set -x 対策 #D0930 return 1 fi @@ -1161,6 +1310,7 @@ function ble/base/migrate-cache-directory { if ! ble/base/initialize-cache-directory; then ble/util/print "ble.sh: failed to initialize \$_ble_base_cache." 1>&2 builtin unset -v _ble_bash BLE_VERSION BLE_VERSINFO + ble/init/clean-up 2>/dev/null # set -x 対策 #D0930 return 1 fi ble/base/migrate-cache-directory @@ -1459,6 +1609,7 @@ function ble-attach { ble/base/adjust-bash-options ble/base/adjust-POSIXLY_CORRECT ble/base/adjust-builtin-wrappers-2 + ble/base/adjust-BASH_REMATCH if [[ ${IN_NIX_SHELL-} ]]; then # nix-shell rc の中から実行している時は強制的に prompt-attach にする @@ -1466,6 +1617,7 @@ function ble-attach { ble/base/install-prompt-attach _ble_attached= BLE_ATTACHED= + ble/base/restore-BASH_REMATCH ble/base/restore-bash-options ble/base/restore-POSIXLY_CORRECT ble/base/restore-builtin-wrappers @@ -1498,6 +1650,7 @@ function ble-attach { BLE_ATTACHED= ble-edit/detach ble/term/leave + ble/base/restore-BASH_REMATCH ble/base/restore-bash-options ble/base/restore-POSIXLY_CORRECT ble/base/restore-builtin-wrappers @@ -1722,33 +1875,6 @@ function ble/base/process-blesh-arguments { esac } -function ble/base/initialize/.clean-up { - local ext=$? # preserve exit status - - # 一時グローバル変数消去 - builtin unset -v _ble_init_version - builtin unset -v _ble_init_arg - builtin unset -v _ble_init_exit - builtin unset -v _ble_init_command - builtin unset -v _ble_init_attached - - # 状態復元 - if [[ $_ble_init_original_IFS_set ]]; then - IFS=$_ble_init_original_IFS - else - builtin unset -v IFS - fi - builtin unset -v _ble_init_original_IFS_set - builtin unset -v _ble_init_original_IFS - if [[ ! $_ble_attached ]]; then - ble/base/restore-bash-options - ble/base/restore-POSIXLY_CORRECT - ble/base/restore-builtin-wrappers - builtin eval -- "$_ble_bash_FUNCNEST_restore" - fi - return "$ext" -} - function ble/base/sub:test { local error= logfile= @@ -1822,6 +1948,6 @@ function ble/base/sub:clear-cache { ble/util/setexit "$_ble_init_exit" #%end -ble/base/initialize/.clean-up 2>/dev/null # set -x 対策 #D0930 +ble/init/clean-up check-attach 2>/dev/null # set -x 対策 #D0930 { builtin eval "return $? || exit $?"; } 2>/dev/null # set -x 対策 #D0930 ############################################################################### diff --git a/docs/ChangeLog.md b/docs/ChangeLog.md index a9ff0706..c89462cf 100644 --- a/docs/ChangeLog.md +++ b/docs/ChangeLog.md @@ -322,6 +322,7 @@ - util: add identification of Windows Terminal `wt` `#D1758` e332dc5 - complete: evaluate words for `noquote` (motivated by SuperSandro2000) `#D1767` 0a42299 - edit (TRAPDEBUG): preserve original `DEBUG` trap and enabled it in `PROMPT_COMMAND` (motivated by ammarooo) `#D1772` `#D1773` ec2a67a + - main, trap: fix initialization order of `{save,restore}-BASH_REMATCH` (reported by SuperSandro2000) `#D1780` 0000000 - global: work around bash-3.0 bug that single quotas remains for `"${v-$''}"` `#D1774` 9b96578 ## Internal changes and fixes diff --git a/note.txt b/note.txt index f820e6d9..30347788 100644 --- a/note.txt +++ b/note.txt @@ -6117,6 +6117,55 @@ bash_tips Done (実装ログ) ------------------------------------------------------------------------------- +2022-02-19 + + * trap: 初期化時に既存の trap がある時にエラーメッセージが出る (reported by SuperSandro2000) [#D1780] + https://github.com/akinomyoga/ble.sh/issues/179 + + 初期化時に以下のメッセージが出る。 + + $ nix-shell -p hello + bash: ble-edit/exec/save-BASH_REMATCH: No such file or directory + bash: ble-edit/exec/restore-BASH_REMATCH: No such file or directory + + これは一番最近の commit で起こった事だった。新しく既存の trap　を保持する様 + に修正したが、その時に既存の trap は + + * そもそも trap の内部で使うのだから {save,restore}-BASH_REMATCH は移動するべきでは。 + + →ble.pp に移動した。また同時に source ble.sh 直前の BASH_REMATCH を保持する様に修正した。 + + * reject: ble/builtin/trap を実際に呼び出す必要はなくて単に値を代入すれば良 + いのではないか? その他にしなければならない操作などがあるだろうか。確認す + る。と、思ったが解析するのも面倒である。という事を考えれば、やはりそのま + ま実行する方が良いのではないか。一応 eval して配列に代入すればその3番目の + 単語として trap_string を取得する事はできる。 + + うーん。やはり {save,restore}-BASH_REMATCH さえ移動すれば今の実装で良い気 + がする。下手に自前で実装するよりも既にある実装を使った方が (効率は悪いか + もしれないが) コードの管理という点では良い。また、この部分は到底ボトルネッ + クではないので速度を重視する必要も全く無い。 + + * ble.pp でも BASH_REMATCH を保持する様に修正するべきでは。 + + [動作確認] + + x fixed: source ble.sh の前後で BASH_REMATCH が保持される事を確認する。 + + と思ったら保持されていない。どうやら restore-BASH_REMATCH の数がバランス + していない様だ。元々 BASH_REMATCH の復元にはチェックが入っていなかった。 + という事は、これは意図的に重複して retore-BASH_REMATCH を呼び出す様になっ + ていたということではないのか。gexec での使い方について改めて確認する。 + + うーん。別に余分に実行しているという事もない。単に ble-attach で adjust + し忘れているのが原因に思われる。 + + →ble-attach に追加した。更に {adjust,restore}-bash-options と同じ箇所で + ちゃんと呼び出す様に全体をチェックして追加した。 + + →また _ble_bash_BASH_REMATCH_level が負になっていたので、負にならない様 + にチェックを追加する。 + 2022-02-18 * command-help: 関数の help として関数が定義されたファイルを表示する [#D1779] diff --git a/src/decode.sh b/src/decode.sh index 491fc886..1a321190 100644 --- a/src/decode.sh +++ b/src/decode.sh @@ -3947,7 +3947,7 @@ function ble/builtin/bind { local set shopt; ble/base/.adjust-bash-options set shopt [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/save-BASH_REMATCH + ble/base/adjust-BASH_REMATCH ble/decode/initialize local flags= ext=0 @@ -3961,7 +3961,7 @@ function ble/builtin/bind { fi [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/restore-BASH_REMATCH + ble/base/restore-BASH_REMATCH ble/base/.restore-bash-options set shopt return "$ext" } diff --git a/src/edit.sh b/src/edit.sh index a262119c..18077ea0 100644 --- a/src/edit.sh +++ b/src/edit.sh @@ -5285,104 +5285,6 @@ function ble-edit/exec/.adjust-eol { ble/canvas/bflush.draw } -if ((_ble_bash>=50100)); then - _ble_edit_exec_BASH_REMATCH=() - function ble-edit/exec/save-BASH_REMATCH { - _ble_edit_exec_BASH_REMATCH=("${BASH_REMATCH[@]}") - } - function ble-edit/exec/restore-BASH_REMATCH { - BASH_REMATCH=("${_ble_edit_exec_BASH_REMATCH[@]}") - } - -else - _ble_edit_exec_BASH_REMATCH=() - _ble_edit_exec_BASH_REMATCH_rex=none - - ## @fn ble-edit/exec/save-BASH_REMATCH/increase delta - ## @param[in] delta - ## @var[in,out] i rex - function ble-edit/exec/save-BASH_REMATCH/increase { - local delta=$1 - ((delta)) || return 1 - ((i+=delta)) - if ((delta==1)); then - rex=$rex. - else - rex=$rex.{$delta} - fi - } - function ble-edit/exec/save-BASH_REMATCH/is-updated { - local i n=${#_ble_edit_exec_BASH_REMATCH[@]} - ((n!=${#BASH_REMATCH[@]})) && return 0 - for ((i=0;i=0;r--)); do - local end=${rparens[r]} - if ble/string#index-of "${text:i:end-i}" "$sub"; then - ble-edit/exec/save-BASH_REMATCH/increase "$ret" - ble/array#push rparens $((i+${#sub})) - rex=$rex'(' - break - else - ble-edit/exec/save-BASH_REMATCH/increase $((end-i)) - rex=$rex')' - builtin unset -v 'rparens[r]' - fi - done - - ((r>=0)) && continue - - # 新しい子一致 - if ble/string#index-of "${text:i}" "$sub"; then - ble-edit/exec/save-BASH_REMATCH/increase "$ret" - ble/array#push rparens $((i+${#sub})) - rex=$rex'(' - else - break # 復元失敗 - fi - done - - local r rN=${#rparens[@]} - for ((r=rN-1;r>=0;r--)); do - local end=${rparens[r]} - ble-edit/exec/save-BASH_REMATCH/increase $((end-i)) - rex=$rex')' - builtin unset -v 'rparens[r]' - done - - ble-edit/exec/save-BASH_REMATCH/increase $((${#text}-i)) - - _ble_edit_exec_BASH_REMATCH=("${BASH_REMATCH[@]}") - _ble_edit_exec_BASH_REMATCH_rex=$rex - } - function ble-edit/exec/restore-BASH_REMATCH { - [[ $_ble_edit_exec_BASH_REMATCH =~ $_ble_edit_exec_BASH_REMATCH_rex ]] - } -fi - _ble_prompt_ps10_data=() function ble/prompt/unit:_ble_prompt_ps10/update { ble/prompt/unit:{section}/update _ble_prompt_ps10 "$PS0" '' @@ -5403,7 +5305,7 @@ function ble-edit/exec/print-PS0 { function ble/builtin/exit/.read-arguments { [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/save-BASH_REMATCH + ble/base/adjust-BASH_REMATCH while (($#)); do local arg=$1; shift if [[ $arg == --help ]]; then @@ -5416,7 +5318,7 @@ function ble/builtin/exit/.read-arguments { fi done [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/restore-BASH_REMATCH + ble/base/restore-BASH_REMATCH } function ble/builtin/exit { local ext=$? @@ -6038,7 +5940,7 @@ function ble-edit/exec:gexec/.prologue { ((++_ble_edit_CMD)) ble/exec/time#start - ble-edit/exec/restore-BASH_REMATCH + ble/base/restore-BASH_REMATCH } ## @fn ble-edit/exec:gexec/.restore-lastarg lastarg @@ -6095,10 +5997,10 @@ function ble-edit/exec:gexec/.epilogue { ble/base/adjust-bash-options ble/base/adjust-POSIXLY_CORRECT ble/base/adjust-builtin-wrappers-2 + ble/base/adjust-BASH_REMATCH ble-edit/adjust-IGNOREEOF ble-edit/adjust-READLINE ble-edit/adjust-PS1 - ble-edit/exec/save-BASH_REMATCH ble/exec/time#restore-TIMEFORMAT ble/exec/time#end ble/util/reset-keymap-of-editing-mode @@ -8958,9 +8860,9 @@ function ble/builtin/read { builtin eval -- "$_ble_builtin_read_hook" local __ble_command= __ble_args= __ble_input= - [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && ble-edit/exec/save-BASH_REMATCH + [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && ble/base/adjust-BASH_REMATCH ble/builtin/read/.impl "$@"; local __ble_ext=$? - [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && ble-edit/exec/restore-BASH_REMATCH + [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && ble/base/restore-BASH_REMATCH ble/base/.restore-bash-options _ble_local_set _ble_local_shopt [[ $__ble_command ]] || return "$__ble_ext" @@ -9409,6 +9311,7 @@ function ble-edit/bind/.check-detach { if [[ $attached ]]; then # ここで ble-detach/impl した時は調整は最低限でOK + ble/base/restore-BASH_REMATCH ble/base/restore-bash-options ble/base/restore-POSIXLY_CORRECT ble/base/restore-builtin-wrappers diff --git a/src/history.sh b/src/history.sh index 2d63f5a8..07479786 100644 --- a/src/history.sh +++ b/src/history.sh @@ -1485,7 +1485,7 @@ function ble/builtin/history { fi [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/save-BASH_REMATCH + ble/base/adjust-BASH_REMATCH # -cdanwr local flag_processed= @@ -1517,7 +1517,7 @@ function ble/builtin/history { fi; local ext=$? [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/restore-BASH_REMATCH + ble/base/restore-BASH_REMATCH ble/base/.restore-bash-options set shopt return "$ext" } diff --git a/src/util.sh b/src/util.sh index b0b773df..1fe1ffc6 100644 --- a/src/util.sh +++ b/src/util.sh @@ -1797,6 +1797,7 @@ function blehook/.read-arguments { function blehook { local set shopt + ble/base/adjust-BASH_REMATCH ble/base/.adjust-bash-options set shopt local flags print process @@ -1811,6 +1812,7 @@ function blehook { fi [[ $flags != *E* ]]; local ext=$? ble/base/.restore-bash-options set shopt + ble/base/restore-BASH_REMATCH return "$ext" fi @@ -1844,6 +1846,7 @@ function blehook { fi ble/base/.restore-bash-options set shopt + ble/base/restore-BASH_REMATCH return "$ext" } blehook/.compatibility-ble-0.3 @@ -2011,7 +2014,7 @@ function ble/builtin/trap { fi [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/save-BASH_REMATCH + ble/base/adjust-BASH_REMATCH if [[ $flags == *p* ]]; then ble/builtin/trap/.initialize @@ -2062,7 +2065,7 @@ function ble/builtin/trap { fi [[ ! $_ble_attached || $_ble_edit_exec_inside_userspace ]] && - ble-edit/exec/restore-BASH_REMATCH + ble/base/restore-BASH_REMATCH ble/base/.restore-bash-options set shopt return 0 }