oh-my-zsh/lib/termsupport.zsh

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# Set terminal window and tab/icon title
#
# usage: title short_tab_title [long_window_title]
#
# See: http://www.faqs.org/docs/Linux-mini/Xterm-Title.html#ss3.1
# Fully supports screen, iterm, and probably most modern xterm and rxvt
# (In screen, only short_tab_title is used)
# Limited support for Apple Terminal (Terminal can't set window and tab separately)
function title {
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[[ "$EMACS" == *term* ]] && return
# if $2 is unset use $1 as default
# if it is set and empty, leave it as is
: ${2=$1}
if [[ "$TERM" == screen* ]]; then
print -Pn "\ek$1:q\e\\" #set screen hardstatus, usually truncated at 20 chars
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elif [[ "$TERM" == xterm* ]] || [[ "$TERM" == rxvt* ]] || [[ "$TERM" == ansi ]] || [[ "$TERM_PROGRAM" == "iTerm.app" ]]; then
print -Pn "\e]2;$2:q\a" #set window name
print -Pn "\e]1;$1:q\a" #set icon (=tab) name
fi
}
ZSH_THEME_TERM_TAB_TITLE_IDLE="%15<..<%~%<<" #15 char left truncated PWD
ZSH_THEME_TERM_TITLE_IDLE="%n@%m: %~"
# Runs before showing the prompt
function omz_termsupport_precmd {
if [[ $DISABLE_AUTO_TITLE == true ]]; then
return
fi
title $ZSH_THEME_TERM_TAB_TITLE_IDLE $ZSH_THEME_TERM_TITLE_IDLE
}
# Runs before executing the command
function omz_termsupport_preexec {
if [[ $DISABLE_AUTO_TITLE == true ]]; then
return
fi
emulate -L zsh
setopt extended_glob
# cmd name only, or if this is sudo or ssh, the next cmd
local CMD=${1[(wr)^(*=*|sudo|ssh|rake|-*)]:gs/%/%%}
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local LINE="${2:gs/%/%%}"
title '$CMD' '%100>...>$LINE%<<'
}
precmd_functions+=(omz_termsupport_precmd)
preexec_functions+=(omz_termsupport_preexec)
# Keep Apple Terminal.app's current working directory updated
# Based on this answer: http://superuser.com/a/315029
# With extra fixes to handle multibyte chars and non-UTF-8 locales
if [[ "$TERM_PROGRAM" == "Apple_Terminal" ]] && [[ -z "$INSIDE_EMACS" ]]; then
# URL-encodes a string
# Outputs the encoded string on stdout
# Returns nonzero if encoding failed
function _omz_urlencode() {
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local str=$1
local url_str=""
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# URLs must use UTF-8 encoding; convert if required
local encoding=${LC_CTYPE/*./}
if [[ -n $encoding && $encoding != UTF-8 && $encoding != utf8 ]]; then
str=$(echo $str | iconv -f $encoding -t UTF-8)
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if [[ $? != 0 ]]; then
echo "Error converting string from $encoding to UTF-8" >&2
return 1
fi
fi
# Use LC_CTYPE=C to process text byte-by-byte
local i ch hexch LC_CTYPE=C
for ((i = 1; i <= ${#str}; ++i)); do
ch="$str[i]"
if [[ "$ch" =~ [/._~A-Za-z0-9-] ]]; then
url_str+="$ch"
else
hexch=$(printf "%02X" "'$ch")
url_str+="%$hexch"
fi
done
echo $url_str
}
# Emits the control sequence to notify Terminal.app of the cwd
function update_terminalapp_cwd() {
# Identify the directory using a "file:" scheme URL, including
# the host name to disambiguate local vs. remote paths.
# Percent-encode the pathname.
local URL_PATH=$(_omz_urlencode $PWD)
[[ $? != 0 ]] && return 1
local PWD_URL="file://$HOST$URL_PATH"
# Undocumented Terminal.app-specific control sequence
printf '\e]7;%s\a' $PWD_URL
}
# Use a precmd hook instead of a chpwd hook to avoid contaminating output
precmd_functions+=(update_terminalapp_cwd)
# Run once to get initial cwd set
update_terminalapp_cwd
fi