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Merge pull request #202 from dritter/join_conditional_segments
Allows the use of `_join` on conditional segments.
This commit is contained in:
Ben Hilburn
commit
6072f1e56c
2 changed files with 91 additions and 27 deletions
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@ -60,10 +60,10 @@ printSizeHumanReadable() {
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# worthy. The callback function has access to
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# the inner variable $item.
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function getRelevantItem() {
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setopt shwordsplit # We need to split the words in $interfaces
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local list callback
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list=$1
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local -a list
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local callback
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# Explicitly split the elements by whitespace.
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list=${=1}
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callback=$2
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for item in $list; do
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@ -134,3 +134,52 @@ print_deprecation_warning() {
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fi
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done
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}
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# A helper function to determine if a segment should be
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# joined or promoted to a full one.
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# Takes three arguments:
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# * $1: The array index of the current segment
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# * $2: The array index of the last printed segment
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# * $3: The array of segments of the left or right prompt
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function segmentShouldBeJoined() {
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local current_index=$1
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local last_segment_index=$2
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# Explicitly split the elements by whitespace.
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local -a elements
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elements=${=3}
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local current_segment=${elements[$current_index]}
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local joined=false
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if [[ ${current_segment[-7,-1]} == '_joined' ]]; then
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joined=true
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# promote segment to a full one, if the predecessing full segment
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# was conditional. So this can only be the case for segments that
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# are not our direct predecessor.
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if (( $(($current_index - $last_segment_index)) > 1)); then
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# Now we have to examine every previous segment, until we reach
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# the last printed one (found by its index). This is relevant if
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# all previous segments are joined. Then we want to join our
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# segment as well.
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local examined_index=$((current_index - 1))
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while (( $examined_index > $last_segment_index )); do
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local previous_segment=${elements[$examined_index]}
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# If one of the examined segments is not joined, then we know
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# that the current segment should not be joined, as the target
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# segment is the wrong one.
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if [[ ${previous_segment[-7,-1]} != '_joined' ]]; then
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joined=false
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break
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fi
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examined_index=$((examined_index - 1))
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done
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fi
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fi
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# Return 1 means error; return 0 means no error. So we have
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# to invert $joined
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if [[ "$joined" == "true" ]]; then
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return 0
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else
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return 1
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fi
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}
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@ -123,14 +123,20 @@ CURRENT_BG='NONE'
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# Takes four arguments:
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# * $1: Name of the function that was orginally invoked (mandatory).
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# Necessary, to make the dynamic color-overwrite mechanism work.
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# * $2: A flag if the segment should be joined with the previous one.
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# * $2: The array index of the current segment
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# * $3: Background color
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# * $4: Foreground color
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# * $5: The segment content
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# * $6: An identifying icon (must be a key of the icons array)
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# The latter three can be omitted,
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set_default last_left_element_index 1
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set_default POWERLEVEL9K_WHITESPACE_BETWEEN_LEFT_SEGMENTS " "
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left_prompt_segment() {
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local current_index=$2
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# Check if the segment should be joined with the previous one
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local joined
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segmentShouldBeJoined $current_index $last_left_element_index "$POWERLEVEL9K_LEFT_PROMPT_ELEMENTS" && joined=true || joined=false
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# Overwrite given background-color by user defined variable for this segment.
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local BACKGROUND_USER_VARIABLE=POWERLEVEL9K_${(U)1#prompt_}_BACKGROUND
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local BG_COLOR_MODIFIER=${(P)BACKGROUND_USER_VARIABLE}
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@ -145,7 +151,6 @@ left_prompt_segment() {
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[[ -n "$3" ]] && bg="%K{$3}" || bg="%k"
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[[ -n "$4" ]] && fg="%F{$4}" || fg="%f"
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local joined=$2
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if [[ $CURRENT_BG != 'NONE' ]] && ! isSameColor "$3" "$CURRENT_BG"; then
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echo -n "$bg%F{$CURRENT_BG}"
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if [[ $joined == false ]]; then
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@ -188,6 +193,7 @@ left_prompt_segment() {
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echo -n "${POWERLEVEL9K_WHITESPACE_BETWEEN_LEFT_SEGMENTS}"
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CURRENT_BG=$3
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last_left_element_index=$current_index
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}
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# End the left prompt, closes the final segment.
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@ -207,14 +213,21 @@ CURRENT_RIGHT_BG='NONE'
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# Takes four arguments:
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# * $1: Name of the function that was orginally invoked (mandatory).
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# Necessary, to make the dynamic color-overwrite mechanism work.
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# * $2: A flag if the segment should be joined with the previous one.
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# * $2: The array index of the current segment
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# * $3: Background color
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# * $4: Foreground color
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# * $5: The segment content
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# * $6: An identifying icon (must be a key of the icons array)
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# No ending for the right prompt segment is needed (unlike the left prompt, above).
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set_default last_right_element_index 1
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set_default POWERLEVEL9K_WHITESPACE_BETWEEN_RIGHT_SEGMENTS " "
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right_prompt_segment() {
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local current_index=$2
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# Check if the segment should be joined with the previous one
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local joined
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segmentShouldBeJoined $current_index $last_right_element_index "$POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS" && joined=true || joined=false
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# Overwrite given background-color by user defined variable for this segment.
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local BACKGROUND_USER_VARIABLE=POWERLEVEL9K_${(U)1#prompt_}_BACKGROUND
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local BG_COLOR_MODIFIER=${(P)BACKGROUND_USER_VARIABLE}
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@ -229,7 +242,6 @@ right_prompt_segment() {
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[[ -n "$3" ]] && bg="%K{$3}" || bg="%k"
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[[ -n "$4" ]] && fg="%F{$4}" || fg="%f"
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local joined=$2
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# If CURRENT_RIGHT_BG is "NONE", we are the first right segment.
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if [[ $joined == false ]] || [[ "$CURRENT_RIGHT_BG" == "NONE" ]]; then
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if isSameColor "$CURRENT_RIGHT_BG" "$3"; then
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@ -269,6 +281,7 @@ right_prompt_segment() {
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echo -n "${visual_identifier}${POWERLEVEL9K_WHITESPACE_BETWEEN_RIGHT_SEGMENTS}%f"
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CURRENT_RIGHT_BG=$3
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last_right_element_index=$current_index
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}
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################################################################
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@ -283,8 +296,8 @@ CURRENT_BG='NONE'
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# AWS Profile
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prompt_aws() {
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local aws_profile="$AWS_DEFAULT_PROFILE"
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if [[ -n "$aws_profile" ]];
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then
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if [[ -n "$aws_profile" ]]; then
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"$1_prompt_segment" "$0" "$2" red white "$aws_profile" 'AWS_ICON'
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fi
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}
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@ -389,7 +402,9 @@ prompt_battery() {
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fi
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# Draw the prompt_segment
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[[ -n $bat_percent ]] && "$1_prompt_segment" "${0}_${current_state}" "$2" "$DEFAULT_COLOR" "${battery_states[$current_state]}" "$message" 'BATTERY_ICON'
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if [[ -n $bat_percent ]]; then
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"$1_prompt_segment" "${0}_${current_state}" "$2" "$DEFAULT_COLOR" "${battery_states[$current_state]}" "$message" 'BATTERY_ICON'
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fi
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}
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# Context: user@hostname (who am I and where am I)
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@ -813,20 +828,20 @@ prompt_virtualenv() {
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build_left_prompt() {
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defined POWERLEVEL9K_LEFT_PROMPT_ELEMENTS || POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(context dir rbenv vcs)
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local index=1
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for element in "${POWERLEVEL9K_LEFT_PROMPT_ELEMENTS[@]}"; do
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# Check if the segment should be joined with the previous one
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local joined=false
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if [[ ${element[-7,-1]} == '_joined' ]]; then
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element="${element[0,-8]}"
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joined=true
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fi
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# Remove joined information in direct calls
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element=${element%_joined}
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# Check if it is a custom command, otherwise interpet it as
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# a prompt.
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if [[ $element[0,7] =~ "custom_" ]]; then
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"prompt_custom" "left" "$joined" $element[8,-1]
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"prompt_custom" "left" "$index" $element[8,-1]
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else
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"prompt_$element" "left" "$joined"
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"prompt_$element" "left" "$index"
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fi
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index=$((index + 1))
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done
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left_prompt_end
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@ -836,20 +851,20 @@ build_left_prompt() {
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build_right_prompt() {
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defined POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS || POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status root_indicator background_jobs history time)
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local index=1
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for element in "${POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS[@]}"; do
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# Check if the segment should be joined with the previous one
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local joined=false
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if [[ ${element[-7,-1]} == '_joined' ]]; then
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element="${element[0,-8]}"
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joined=true
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fi
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# Remove joined information in direct calls
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element=${element%_joined}
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# Check if it is a custom command, otherwise interpet it as
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# a prompt.
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if [[ $element[0,7] =~ "custom_" ]]; then
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"prompt_custom" "right" "$joined" $element[8,-1]
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"prompt_custom" "right" "$index" $element[8,-1]
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else
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"prompt_$element" "right" "$joined"
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"prompt_$element" "right" "$index"
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fi
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index=$((index + 1))
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done
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}
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