150 lines
6.9 KiB
Markdown
150 lines
6.9 KiB
Markdown
zsh-history-substring-search
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==============================================================================
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This is a clean-room implementation of the [Fish shell][1]'s history search
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feature, where you can type in any part of any previously entered command
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and press the UP and DOWN arrow keys to cycle through the matching commands.
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You can also use K and J in VI mode or ^P and ^N in EMACS mode for the same.
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[1]: https://fishshell.com
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[2]: https://www.zsh.org/mla/users/2009/msg00818.html
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[3]: https://sourceforge.net/projects/fizsh/
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[4]: https://github.com/robbyrussell/oh-my-zsh/pull/215
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[5]: https://github.com/zsh-users/zsh-history-substring-search
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[6]: https://github.com/zsh-users/zsh-syntax-highlighting
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------------------------------------------------------------------------------
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Requirements
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------------------------------------------------------------------------------
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* [ZSH](http://zsh.sourceforge.net) 4.3 or newer
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------------------------------------------------------------------------------
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Usage
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------------------------------------------------------------------------------
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1. Load this script into your interactive ZSH session:
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% source zsh-history-substring-search.zsh
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If you want to use [zsh-syntax-highlighting][6] along with this script,
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then make sure that you load it *before* you load this script:
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% source zsh-syntax-highlighting.zsh
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% source zsh-history-substring-search.zsh
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2. Bind keyboard shortcuts to this script's functions:
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# bind UP and DOWN arrow keys
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zmodload zsh/terminfo
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bindkey "$terminfo[kcuu1]" history-substring-search-up
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bindkey "$terminfo[kcud1]" history-substring-search-down
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# bind UP and DOWN arrow keys (compatibility fallback
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# for Ubuntu 12.04, Fedora 21, and MacOSX 10.9 users)
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bindkey '^[[A' history-substring-search-up
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bindkey '^[[B' history-substring-search-down
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# bind P and N for EMACS mode
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bindkey -M emacs '^P' history-substring-search-up
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bindkey -M emacs '^N' history-substring-search-down
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# bind k and j for VI mode
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bindkey -M vicmd 'k' history-substring-search-up
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bindkey -M vicmd 'j' history-substring-search-down
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3. Type any part of any previous command and then:
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* Press the UP arrow key to select the nearest command that (1) contains
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your query and (2) is older than the current command in the command
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history.
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* Press the DOWN arrow key to select the nearest command that (1)
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contains your query and (2) is newer than the current command in the
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command history.
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* Press ^U (the Control and U keys simultaneously) to abort the search.
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4. If a matching command spans more than one line of text, press the LEFT
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arrow key to move the cursor away from the end of the command, and then:
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* Press the UP arrow key to move the cursor to the line above. When the
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cursor reaches the first line of the command, pressing the UP arrow
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key again will cause this script to perform another search.
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* Press the DOWN arrow key to move the cursor to the line below. When
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the cursor reaches the last line of the command, pressing the DOWN
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arrow key again will cause this script to perform another search.
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------------------------------------------------------------------------------
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Configuration
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------------------------------------------------------------------------------
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This script defines the following global variables. You may override their
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default values only after having loaded this script into your ZSH session.
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* HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND is a global variable that defines
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how the query should be highlighted inside a matching command. Its default
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value causes this script to highlight using bold, white text on a magenta
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background. See the "Character Highlighting" section in the zshzle(1) man
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page to learn about the kinds of values you may assign to this variable.
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* HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND is a global variable that
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defines how the query should be highlighted when no commands in the
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history match it. Its default value causes this script to highlight using
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bold, white text on a red background. See the "Character Highlighting"
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section in the zshzle(1) man page to learn about the kinds of values you
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may assign to this variable.
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* HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS is a global variable that defines
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how the command history will be searched for your query. Its default value
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causes this script to perform a case-insensitive search. See the "Globbing
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Flags" section in the zshexpn(1) man page to learn about the kinds of
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values you may assign to this variable.
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To always receive _unique_ search results, use `setopt HIST_IGNORE_ALL_DUPS`.
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Alternatively, use `setopt HIST_FIND_NO_DUPS` which makes this plugin skip
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duplicate _adjacent_ search results as you cycle through them---however, this
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does not guarantee that search results are unique: if your search results were
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"Dog", "Dog", "HotDog", "Dog", then cycling them gives "Dog", "HotDog", "Dog".
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Notice that the "Dog" search result appeared twice as you cycled through them!
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If you wish to avoid this limitation, then use `setopt HIST_IGNORE_ALL_DUPS`.
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------------------------------------------------------------------------------
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History
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------------------------------------------------------------------------------
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This script was originally written by [Peter Stephenson][2], who published it
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to the ZSH users mailing list (thereby making it public domain) in September
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2009. It was later revised by Guido van Steen and released under the BSD
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license (see below) as part of [the fizsh project][3] in January 2011.
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It was later extracted from fizsh release 1.0.1, refactored heavily, and
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repackaged as both an [oh-my-zsh plugin][4] and as an independently loadable
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[ZSH script][5] by Suraj N. Kurapati in 2011.
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It was [further developed][4] by Guido van Steen, Suraj N. Kurapati, Sorin
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Ionescu, and Vincent Guerci in 2011.
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------------------------------------------------------------------------------
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Oh My Zsh Distribution Notes
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------------------------------------------------------------------------------
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What you are looking at now is Oh My Zsh's repackaging of zsh-history-substring-search
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as an OMZ module inside the Oh My Zsh distribution.
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The upstream repo, zsh-users/zsh-history-substring-search, can be found on GitHub at
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https://github.com/zsh-users/zsh-history-substring-search.
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This downstream copy was last updated from the following upstream commit:
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SHA: 2c295432175990c1bb4e90bc13f609daa67a25d6
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Commit date: 2015-09-28 10:47:34 -0700
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Everything above this section is a copy of the original upstream's README, so things
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may differ slightly when you're using this inside OMZ. In particular, you do not
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need to set up key bindings for the up and down arrows yourself in `~/.zshrc`; the OMZ
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plugin does that for you. You may still want to set up additional emacs- or vi-specific
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bindings as mentioned above.
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