1 files changed, 121 insertions, 0 deletions
diff --git a/zsh/termsupport.zsh b/zsh/termsupport.zsh
new file mode 100644
index 0000000..d406fc6
--- /dev/null
+++ b/zsh/termsupport.zsh
@@ -0,0 +1,121 @@
+function zsh_urlencode() {
+	emulate -L zsh
+	local -a opts
+	zparseopts -D -E -a opts r m P
+
+	local in_str="$@"
+	local url_str=""
+	local spaces_as_plus
+	if [[ -z $opts[(r)-P] ]]; then spaces_as_plus=1; fi
+	local str="$in_str"
+
+	# URLs must use UTF-8 encoding; convert str to UTF-8 if required
+	local encoding=$langinfo[CODESET]
+
+
+	# Use LC_CTYPE=C to process text byte-by-byte
+	local i byte ord LC_ALL=C
+	export LC_ALL
+	local reserved=';/?:@&=+$,'
+	local mark='_.!~*''()-'
+	local dont_escape="[A-Za-z0-9"
+	if [[ -z $opts[(r)-r] ]]; then
+	 dont_escape+=$reserved
+	fi
+	# $mark must be last because of the "-"
+	if [[ -z $opts[(r)-m] ]]; then
+	 dont_escape+=$mark
+	fi
+	dont_escape+="]"
+
+	# Implemented to use a single printf call and avoid subshells in the loop,
+	# for performance
+	local url_str=""
+	for (( i = 1; i <= ${#str}; ++i )); do
+	 byte="$str[i]"
+	 if [[ "$byte" =~ "$dont_escape" ]]; then
+		 url_str+="$byte"
+	 else
+		 if [[ "$byte" == " " && -n $spaces_as_plus ]]; then
+			 url_str+="+"
+		 else
+			 ord=$(( [##16] #byte ))
+			 url_str+="%$ord"
+		 fi
+	 fi
+	done
+	echo -E "$url_str"
+}
+
+# Runs before showing the prompt
+function mzc_termsupport_precmd {
+	[[ "${DISABLE_AUTO_TITLE:-}" == true ]] && return
+	title $ZSH_THEME_TERM_TAB_TITLE_IDLE $ZSH_THEME_TERM_TITLE_IDLE
+}
+
+# Runs before executing the command
+function mzc_termsupport_preexec {
+	[[ "${DISABLE_AUTO_TITLE:-}" == true ]] && return
+
+	emulate -L zsh
+
+	# split command into array of arguments
+	local -a cmdargs
+	cmdargs=("${(z)2}")
+	# if running fg, extract the command from the job description
+	if [[ "${cmdargs[1]}" = fg ]]; then
+	 # get the job id from the first argument passed to the fg command
+	 local job_id jobspec="${cmdargs[2]#%}"
+	 # logic based on jobs arguments:
+	 # http://zsh.sourceforge.net/Doc/Release/Jobs-_0026-Signals.html#Jobs
+	 # https://www.zsh.org/mla/users/2007/msg00704.html
+	 case "$jobspec" in
+		 <->) # %number argument:
+			 # use the same <number> passed as an argument
+			 job_id=${jobspec} ;;
+		 ""|%|+) # empty, %% or %+ argument:
+			 # use the current job, which appears with a + in $jobstates:
+			 # suspended:+:5071=suspended (tty output)
+			 job_id=${(k)jobstates[(r)*:+:*]} ;;
+		 -) # %- argument:
+			 # use the previous job, which appears with a - in $jobstates:
+			 # suspended:-:6493=suspended (signal)
+			 job_id=${(k)jobstates[(r)*:-:*]} ;;
+		 [?]*) # %?string argument:
+			 # use $jobtexts to match for a job whose command *contains* <string>
+			 job_id=${(k)jobtexts[(r)*${(Q)jobspec}*]} ;;
+		 *) # %string argument:
+			 # use $jobtexts to match for a job whose command *starts with* <string>
+			 job_id=${(k)jobtexts[(r)${(Q)jobspec}*]} ;;
+	 esac
+
+	 # override preexec function arguments with job command
+	 if [[ -n "${jobtexts[$job_id]}" ]]; then
+		 1="${jobtexts[$job_id]}"
+		 2="${jobtexts[$job_id]}"
+	 fi
+	fi
+
+	# cmd name only, or if this is sudo or ssh, the next cmd
+	local CMD=${1[(wr)^(*=*|sudo|ssh|mosh|rake|-*)]:gs/%/%%}
+	local LINE="${2:gs/%/%%}"
+
+	title '$CMD' '%100>...>$LINE%<<'
+}
+
+# Emits the control sequence to notify many terminal emulators
+# of the cwd
+#
+# Identifies the directory using a file: URI scheme, including
+# the host name to disambiguate local vs. remote paths.
+function mzc_termsupport_cwd {
+	# Percent-encode the host and path names.
+	local URL_HOST URL_PATH
+	URL_HOST="$(zsh_urlencode -P $HOST)" || return 1
+	URL_PATH="$(zsh_urlencode -P $PWD)" || return 1
+
+	# common control sequence (OSC 7) to set current host and path
+	printf "\e]7;%s\a" "file://${URL_HOST}${URL_PATH}"
+}
+
+