我正在寻找一种工具,允许使用简单的正则表达式(或仅多个匹配项)支持进行反向增量搜索。例如,如果我想找到命令“foo bar baz”,我可以执行以下操作来快速找到命令:
CRTL-R(开始搜索)输入“foo”(匹配最近使用 foo 的命令)继续输入“foo|baz”(匹配包含“foo”和“baz”的最近命令。
这样的东西存在吗?如果没有,我怎么能自己去实施呢?
以@peth的回答为基础:
Zsh现在自带了history-incremental-pattern-search-backward,你不需要自己定义它。只需添加键绑定即可。^R我更喜欢通过添加以下行来覆盖.zshrc:
bindkey '^R' history-incremental-pattern-search-backward
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现在您可以在搜索中使用glob (原文如此!不是正则表达式)运算符。
请注意,此答案已过时,谢尔盖·罗曼诺夫斯基( Sergey Romanovsky) 给出了更好的答案 。我无法删除它,因为它被标记为已接受,但请注意,它现在更多地用作 zsh 小部件编程的基本说明。
history-incremental-multi-search的zsh创建一个目录并将其包含在您的$fpath例如,我创建了一个目录~/.zsh/functions,并且fpath=($HOME/.zsh/functions $fpath)在我的.zshrc.
将以下内容放入该history-incremental-multi-search目录中命名的文件中。
emulate -L zsh
setopt extended_glob
local oldbuffer=$BUFFER
local -i oldcursor=$CURSOR
local dir # search direction
local chars # input buffer
local -a words # search terms
local -a found # all history items that match first term
local -i hindex=$HISTNO # current
local -i lmatch # last matched history item (for prev/next)
if [[ $WIDGET == *forward* ]]; then
dir=fwd
else
dir=bck
fi
function find-next {
# split the input buffer on spaces to get search terms
words=(${(s: :)chars})
# if we have at least one search term
if (( $#words )); then
# get all keys of history items that match the first
found=(${(k)history[(R)*$words[1]*]})
if (( $#found )); then
# search in widget direction by default
# but accept exception in $1 for "prev match"
search-${1:-$dir}
else
# no matches
lmatch=$HISTNO
fi
else
# no search terms
lmatch=$HISTNO
BUFFER=$oldbuffer
CURSOR=$oldcursor
fi
}
function search-fwd {
# search forward through matches
local -i i
for (( i = $#found; i > 0; i-- )); do
# but not before hindex as we're searching forward
if [[ $found[$i] -gt $hindex ]]; then
set-match $found[$i]
fi
done
}
function search-bck {
# search backward through matches
local -i i
for (( i = 1; i <= $#found; i++ )); do
# but not beyond hindex as we're searching backward
if [[ $found[$i] -lt $hindex ]]; then
set-match $found[$i]
fi
done
}
function set-match {
# match history item against all terms and select it if successful
local match=1
local -i i
for (( i = 2; i <= $#words; i++ )); do
if [[ $history[$1] != *$words[$i]* ]]; then
match=0
break
fi
done
if [[ $match -ne 0 ]]; then
lmatch=$1
BUFFER=$history[$1]
CURSOR=$#BUFFER
break
fi
}
# display sub prompt
zle -R "${dir}-i-search-multi:"
# handle input keys
while read -k; do
case $REPLY in
# next
$'\C-n' )
hindex=$lmatch
find-next
;;
# prev
$'\C-p' )
hindex=$lmatch
if [[ $dir == fwd ]]; then
find-next bck
else
find-next fwd
fi
;;
# break
$'\e' | $'\C-g' )
BUFFER=$oldbuffer
CURSOR=$oldcursor
break
;;
# accept
$'\C-m' | $'\C-j' )
if [[ $lmatch -eq $HISTNO ]]; then
BUFFER=$oldbuffer
CURSOR=$oldcursor
else
HISTNO=$lmatch
fi
break
;;
# erase char
$'\C-h' | $'\C-?' )
chars=$chars[1,-2]
hindex=$HISTNO
find-next
;;
# erase word
$'\C-w' )
if [[ $chars =~ \ ]]; then
chars=${chars% *}
else
chars=
fi
hindex=$HISTNO
find-next
;;
# kill line
$'\C-u' )
chars=
hindex=$HISTNO
find-next
;;
# add unhandled chars to buffer
* )
chars=${chars}${REPLY}
hindex=$HISTNO
find-next
;;
esac
zle -R "${dir}-i-search-multi: $words"
done
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将其放入或从您的.zshrc:
autoload -U history-incremental-multi-search
# make new widgets from function
zle -N history-incremental-multi-search-backward history-incremental-multi-search
zle -N history-incremental-multi-search-forward history-incremental-multi-search
# bind the widgets to keys
bindkey '^Xr' history-incremental-multi-search-backward
bindkey '^Xs' history-incremental-multi-search-forward
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您现在应该能够启动与落后的渐进式搜索Ctrl+X,r,向前Ctrl+X,s。
键入以空格分隔的搜索词。可以使用以下键来控制它:
? Backspace: 擦除字符
Ctrl+W: 删除单词
Ctrl+U: 杀线
Ctrl+N: 下一场比赛
Ctrl+P: 上一场比赛
Ctrl+G/ Esc: 取消搜索
Enter: 接受
这个解决方案可能可以简化很多。它更像是一个功能性的概念证明,还有很多改进的空间。