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Christian Nieves
42
zsh/.oh-my-zsh/plugins/dirhistory/README.md
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zsh/.oh-my-zsh/plugins/dirhistory/README.md
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# Dirhistory plugin
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This plugin adds keyboard shortcuts for navigating directory history and hierarchy.
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To use it, add `dirhistory` to the plugins array in your zshrc file:
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```zsh
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plugins=(... dirhistory)
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```
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## Keyboard Shortcuts
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| Shortcut | Description |
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|-----------------------------------|-----------------------------------------------------------|
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| <kbd>alt</kbd> + <kbd>left</kbd> | Go to previous directory |
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| <kbd>alt</kbd> + <kbd>right</kbd> | Undo <kbd>alt</kbd> + <kbd>left</kbd> |
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| <kbd>alt</kbd> + <kbd>up</kbd> | Move into the parent directory |
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| <kbd>alt</kbd> + <kbd>down</kbd> | Move into the first child directory by alphabetical order |
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NOTE: some terminals might override the ALT+Arrows key bindings (Windows Terminal, for example).
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If these don't work check your terminal settings and change them to a different keyboard shortcut.
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## Usage
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This plugin allows you to navigate the history of previous current-working-directories using ALT-LEFT and ALT-RIGHT. ALT-LEFT moves back to directories that the user has changed to in the past, and ALT-RIGHT undoes ALT-LEFT. MAC users may alternately use OPT-LEFT and OPT-RIGHT.
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Also, navigate directory **hierarchy** using ALT-UP and ALT-DOWN. (mac keybindings not yet implemented). ALT-UP moves to higher hierarchy (shortcut for 'cd ..'). ALT-DOWN moves into the first directory found in alphabetical order (useful to navigate long empty directories e.g. java packages)
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For example, if the shell was started, and the following commands were entered:
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```shell
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cd ~
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cd /usr
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cd share
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cd doc
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```
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Then entering ALT-LEFT at the prompt would change directory from /usr/share/doc to /usr/share, then if pressed again to /usr/, then ~. If ALT-RIGHT were pressed the directory would be changed to /usr/ again.
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After that, ALT-DOWN will probably go to /usr/bin (depends on your /usr structure), ALT-UP will return to /usr, then ALT-UP will get you to /
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**Currently the max history size is 30**. The navigation should work for xterm, PuTTY xterm mode, GNU screen, and on MAC with alternate keys as mentioned above.
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202
zsh/.oh-my-zsh/plugins/dirhistory/dirhistory.plugin.zsh
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zsh/.oh-my-zsh/plugins/dirhistory/dirhistory.plugin.zsh
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##
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# Navigate directory history using ALT-LEFT and ALT-RIGHT. ALT-LEFT moves back to directories
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# that the user has changed to in the past, and ALT-RIGHT undoes ALT-LEFT.
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#
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# Navigate directory hierarchy using ALT-UP and ALT-DOWN.
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# ALT-UP moves to higher hierarchy (cd ..)
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# ALT-DOWN moves into the first directory found in alphabetical order
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#
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dirhistory_past=($PWD)
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dirhistory_future=()
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export dirhistory_past
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export dirhistory_future
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export DIRHISTORY_SIZE=30
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# Pop the last element of dirhistory_past.
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# Pass the name of the variable to return the result in.
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# Returns the element if the array was not empty,
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# otherwise returns empty string.
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function pop_past() {
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eval "$1='$dirhistory_past[$#dirhistory_past]'"
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if [[ $#dirhistory_past -gt 0 ]]; then
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dirhistory_past[$#dirhistory_past]=()
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fi
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}
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function pop_future() {
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eval "$1='$dirhistory_future[$#dirhistory_future]'"
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if [[ $#dirhistory_future -gt 0 ]]; then
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dirhistory_future[$#dirhistory_future]=()
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fi
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}
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# Push a new element onto the end of dirhistory_past. If the size of the array
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# is >= DIRHISTORY_SIZE, the array is shifted
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function push_past() {
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if [[ $#dirhistory_past -ge $DIRHISTORY_SIZE ]]; then
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shift dirhistory_past
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fi
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if [[ $#dirhistory_past -eq 0 || $dirhistory_past[$#dirhistory_past] != "$1" ]]; then
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dirhistory_past+=($1)
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fi
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}
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function push_future() {
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if [[ $#dirhistory_future -ge $DIRHISTORY_SIZE ]]; then
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shift dirhistory_future
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fi
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if [[ $#dirhistory_future -eq 0 || $dirhistory_futuret[$#dirhistory_future] != "$1" ]]; then
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dirhistory_future+=($1)
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fi
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}
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# Called by zsh when directory changes
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autoload -U add-zsh-hook
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add-zsh-hook chpwd chpwd_dirhistory
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function chpwd_dirhistory() {
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push_past $PWD
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# If DIRHISTORY_CD is not set...
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if [[ -z "${DIRHISTORY_CD+x}" ]]; then
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# ... clear future.
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dirhistory_future=()
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fi
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}
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function dirhistory_cd(){
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DIRHISTORY_CD="1"
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cd $1
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unset DIRHISTORY_CD
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}
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# Move backward in directory history
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function dirhistory_back() {
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local cw=""
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local d=""
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# Last element in dirhistory_past is the cwd.
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pop_past cw
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if [[ "" == "$cw" ]]; then
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# Someone overwrote our variable. Recover it.
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dirhistory_past=($PWD)
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return
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fi
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pop_past d
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if [[ "" != "$d" ]]; then
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dirhistory_cd $d
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push_future $cw
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else
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push_past $cw
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fi
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}
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# Move forward in directory history
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function dirhistory_forward() {
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local d=""
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pop_future d
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if [[ "" != "$d" ]]; then
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dirhistory_cd $d
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push_past $d
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fi
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}
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# Bind keys to history navigation
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function dirhistory_zle_dirhistory_back() {
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# Erase current line in buffer
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zle .kill-buffer
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dirhistory_back
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zle .accept-line
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}
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function dirhistory_zle_dirhistory_future() {
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# Erase current line in buffer
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zle .kill-buffer
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dirhistory_forward
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zle .accept-line
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}
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zle -N dirhistory_zle_dirhistory_back
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# xterm in normal mode
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bindkey "\e[3D" dirhistory_zle_dirhistory_back
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bindkey "\e[1;3D" dirhistory_zle_dirhistory_back
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# Terminal.app
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if [[ "$TERM_PROGRAM" == "Apple_Terminal" ]]; then
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bindkey "^[b" dirhistory_zle_dirhistory_back
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fi
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# iTerm2
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if [[ "$TERM_PROGRAM" == "iTerm.app" ]]; then
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bindkey "^[^[[D" dirhistory_zle_dirhistory_back
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fi
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# Putty:
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bindkey "\e\e[D" dirhistory_zle_dirhistory_back
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# GNU screen:
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bindkey "\eO3D" dirhistory_zle_dirhistory_back
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zle -N dirhistory_zle_dirhistory_future
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bindkey "\e[3C" dirhistory_zle_dirhistory_future
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bindkey "\e[1;3C" dirhistory_zle_dirhistory_future
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# Terminal.app
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if [[ "$TERM_PROGRAM" == "Apple_Terminal" ]]; then
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bindkey "^[f" dirhistory_zle_dirhistory_future
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fi
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# iTerm2
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if [[ "$TERM_PROGRAM" == "iTerm.app" ]]; then
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bindkey "^[^[[C" dirhistory_zle_dirhistory_future
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fi
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bindkey "\e\e[C" dirhistory_zle_dirhistory_future
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bindkey "\eO3C" dirhistory_zle_dirhistory_future
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#
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# HIERARCHY Implemented in this section, in case someone wants to split it to another plugin if it clashes bindings
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#
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# Move up in hierarchy
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function dirhistory_up() {
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cd .. || return 1
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}
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# Move down in hierarchy
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function dirhistory_down() {
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cd "$(find . -mindepth 1 -maxdepth 1 -type d | sort -n | head -n 1)" || return 1
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}
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# Bind keys to hierarchy navigation
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function dirhistory_zle_dirhistory_up() {
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zle .kill-buffer # Erase current line in buffer
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dirhistory_up
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zle .accept-line
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}
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function dirhistory_zle_dirhistory_down() {
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zle .kill-buffer # Erase current line in buffer
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dirhistory_down
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zle .accept-line
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}
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zle -N dirhistory_zle_dirhistory_up
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# xterm in normal mode
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bindkey "\e[3A" dirhistory_zle_dirhistory_up
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bindkey "\e[1;3A" dirhistory_zle_dirhistory_up
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if [[ "$TERM_PROGRAM" == "Apple_Terminal" || "$TERM_PROGRAM" == "iTerm.app" ]]; then
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bindkey "^[[A" dirhistory_zle_dirhistory_up
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fi
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# Putty:
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bindkey "\e\e[A" dirhistory_zle_dirhistory_up
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# GNU screen:
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bindkey "\eO3A" dirhistory_zle_dirhistory_up
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zle -N dirhistory_zle_dirhistory_down
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bindkey "\e[3B" dirhistory_zle_dirhistory_down
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bindkey "\e[1;3B" dirhistory_zle_dirhistory_down
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if [[ "$TERM_PROGRAM" == "Apple_Terminal" || "$TERM_PROGRAM" == "iTerm.app" ]]; then
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bindkey "^[[B" dirhistory_zle_dirhistory_down
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fi
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bindkey "\e\e[B" dirhistory_zle_dirhistory_down
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bindkey "\eO3B" dirhistory_zle_dirhistory_down
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