Plugin to create bookmarks in the file system.
This plugin also makes it quite easy to navigate through the bookmarks and manage those bookmarks.
This commit is contained in:
Amila Perera
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77140a2ea7
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223
plugins/bookmark/bookmark.plugin.zsh
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223
plugins/bookmark/bookmark.plugin.zsh
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#############################################################
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# Author: Amila Perera
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# File Name: bookmark.plugin.zsh
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#
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# This plugin can primarily be used to add bookmarks which
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# makes it easier to navigate through the file system.
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# The added bookmarks can also be listed, deleted, renamed and modified.
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#
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# After enabling this plugin, 'bm' command is created.
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# Use 'bm' to create bookmarks in the file system, manage those
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# bookmarks and navigate through the file system using the created bookmarks.
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# To invoke the basic usage of the command, type the following in command line.
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# % bm -h
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#
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# NOTE: zsh completion works with 'bm' command
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#############################################################
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_bm_usage()
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{
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printf "Usage: bm: bm [option] [bookmarkname]\nType bm -h for help\n" 1>&2
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}
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_bm_help()
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{
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cat <<- HELPMSG
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bm: Folder BookMark Utility
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Usage: bm [OPTION] [BOOKMARK] [DIRECTORY]
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bm BOOKMARK Jumps to the directory given by BOOKMARK
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Options:
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-c BOOKMARK [DIRECTORY] Creates a bookmark.
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If no directory is given the current directory is bookmarked
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-d BOOKMARK1 BOOKMARK2... Delete bookmarks
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-r BOOKMARK_OLD BOOKMARK_NEW Renames a bookmark
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-m BOOKMARK DIRECTORY Modifies directory for a given bookmark
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-l Lists bookmarks(same operation is performed if bm is executed with no option)
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-h Displays this help
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HELPMSG
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}
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_check_if_bm_exists()
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{
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local bmexist= name="${1}" bmfile="${2}"
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[ ! -f "${bmfile}" ] && return 0 # returns false since bookmark file doesn't exist
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# check if book mark exists in particular bookmark file
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bmexist=$(awk -F':' '$1 == "'${name}'" { print $1 }' ${bmfile})
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[ ! -z $bmexist ] && { return 1; } || { return 0; }
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}
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_bm_gotobm()
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{
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local name=${1} bmfile=${2} dirname=
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_check_if_bm_exists $name $bmfile
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(($? == 0)) && { printf "bm: bookmark doesn't exist\n" 1>&2; return 1; }
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dirname=$(awk -F':' '$1 == "'${name}'" { print $2 }' ${bmfile})
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[ ! -d "${dirname}" ] && { printf "bm: directory doesn't exist\n" 1>&2; return 1; }
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cd "${dirname}"
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return 0
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}
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_bm_list()
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{
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if [ -f "${1}" ]; then
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sed 's/:/\t/' ${1} | sort | \
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{
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while read rbm rdir
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do
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[ -d "$rdir" ] && printf "%-20s ---> %s\n" "$rbm" "$rdir" \
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|| printf "%-20s ---> %s <====> [%s]\n" "$rbm" "$rdir" "doesn't exist"
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done
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}
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else
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printf "No bookmarks are entered\n" 1>&2 && _bm_usage
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fi
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}
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##################################################################
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##bm()
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##folder bookmark function
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##################################################################
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bm()
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{
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local bm= dir= file="${HOME}/.bmarks"
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case $1 in
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-c)
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shift
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[ $# -gt 2 -o $# -eq 0 ] && { _bm_usage; return 101; }
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bm=$1
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if [ -z "${2}" ]; then
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dir="${PWD}"
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else
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[[ "${2}" =~ ^~ || "${2}" =~ ^\/[^\/]* ]] && dir="${2}" || dir="$PWD/${2}"
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fi
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_check_if_bm_exists $bm $file
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[ $? -eq 1 ] && { printf "bm: bookmark name already exists\n" 1>&2; return 102; }
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dir=$(echo "${dir}/" | sed 's/\/\/*$/\//') # appending a / at the end of directory whether user supplies one or not
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[ ! -d "${dir}" ] \
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&& printf "bm: directory doesn't exist\n" 1>&2 \
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|| printf "%s:%s\n" "$bm" "$dir" >> $file
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;;
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-d)
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shift
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for bm in "$@"; do
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_check_if_bm_exists $bm $file
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if [ $? -eq 1 ]; then
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local tempfile="${file}"".tmp"
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sed "/$bm:/d" $file > $tempfile; mv -f $tempfile $file
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else
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printf "bm: bookmark doesn't exist : %s\n" "$bm"
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fi
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done
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;;
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-r)
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shift
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[ $# -ne 2 ] && { _bm_usage; return 101; }
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local oldbm=${1} newbm=${2}
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_check_if_bm_exists $oldbm $file
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if [ $? -eq 1 ]; then
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local tempfile="${file}"".tmp"
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sed "s/$oldbm:/$newbm:/" $file > $tempfile; mv -f $tempfile $file
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else
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printf "bm: bookmark doesn't exist : %s\n" "$oldbm"
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fi
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;;
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-m)
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shift
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[ $# -gt 2 -o $# -eq 0 ] && { _bm_usage; return 101; }
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bm=$1
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if [ -z "${2}" ]; then
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dir="${PWD}"
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else
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[[ "${2}" =~ ^~ || "${2}" =~ ^\/[^\/]* ]] && dir="${2}" || dir="$PWD/${2}"
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fi
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_check_if_bm_exists $bm $file
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if [ $? -eq 1 ]; then
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[ ! -d "${dir}" ] && { printf "bm: directory doesn't exists\n" 1>&2; return 101; }
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dir=$(echo "${dir}/" | sed 's/\/\/*$/\//') # appending a / at the end of directory whether user supplies one or not
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local tempfile="${file}"".tmp"
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sed "/$bm:/d" $file > $tempfile
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printf "%s:%s\n" "$bm" "$dir" >> $tempfile
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mv -f $tempfile $file
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else
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printf "bm: bookmark doesn't exist : %s\n" "$bm"
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fi
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;;
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-l)
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shift
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_bm_list "$file"
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;;
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-h)
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_bm_help ;;
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*)
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if [ $# -eq 0 ]; then
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_bm_list "$file"
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elif [ $# -gt 1 ]; then
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_bm_usage; return 1;
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else
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_bm_gotobm $1 $file
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[ $? -ne 0 ] && { _bm_usage; return 1; };
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return 0
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fi
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;;
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esac
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return $?
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}
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_bm()
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{
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typeset -A opt_args
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local file="$HOME/.bmarks"
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local curcontext="$curcontext" state line
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_arguments -C \
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'1: :->cmds'\
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'2:: :->args' && ret=0
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case $state in
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cmds)
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if [ -f $file ]; then
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_values=( $(awk -F':' '{ print $1 }' $file) \
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'-c:create' \
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'-d:delete' \
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'-r:rename' \
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'-m:move' \
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'-l:list' \
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'-h:help')
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else
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_values=('-c:create' \
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'-d:delete' \
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'-r:rename' \
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'-m:move' \
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'-l:list' \
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'-h:help')
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fi
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_describe -t _values 'vaules' _values && ret=0
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;;
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args)
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case $line[1] in
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-m|-d)
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_bms=(`awk -F':' '{ print $1 }' $file`)
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_values 'bms' $_bms
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ret=0
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;;
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esac
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esac
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return ret
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}
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compdef _bm bm B
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