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122 lines
2.8 KiB
122 lines
2.8 KiB
# CONSTANTS
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# MARGIN=0
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PADDING=0
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ANSI_RESET='\e[0m'
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BLOCK_CONTINUATION_COL=
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BLOCK_CONTINUATION_SYMBOL=╦
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declare -A STYLE_VARIANTS
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STYLE_VARIANTS[BOLD]='\e[1m'
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STYLE_VARIANTS[ITALIC]='\e[3m'
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STYLE_VARIANTS[UNDERLINE]='\e[4m'
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STYLE_VARIANTS[STRIKETHROUGH]='\e[9m'
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declare -A FG_COLORS
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FG_COLORS[BLACK]='\e[30m'
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FG_COLORS[RED]='\e[31m'
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FG_COLORS[GREEN]='\e[32m'
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FG_COLORS[YELLOW]='\e[33m'
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FG_COLORS[BLUE]='\e[34m'
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FG_COLORS[PURPLE]='\e[35m'
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FG_COLORS[CYAN]='\e[36m'
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FG_COLORS[WHITE]='\e[37m'
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FG_COLORS[GRAY]='\e[90m'
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FG_COLORS[MAGENTA]='\e[95m'
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declare -A BG_COLORS
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BG_COLORS["BLACK"]='\e[40m'
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BG_COLORS["RED"]='\e[41m'
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BG_COLORS["GREEN"]='\e[42m'
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BG_COLORS["YELLOW"]='\e[43m'
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BG_COLORS["BLUE"]='\e[44m'
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BG_COLORS["PURPLE"]='\e[45m'
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BG_COLORS["CYAN"]='\e[46m'
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BG_COLORS["WHITE"]='\e[47m'
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# BG_COLORS["GRAY"]='\e[90m'
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# BG_COLORS["MAGENTA"]='\e[95m'
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# FUNCTIONS
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function ansi_reset {
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PADDING=0
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unset PADDING_LEFT PADDING_RIGHT BG FG
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}
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function ansi_length {
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local clean_text
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clean_text=$(echo "$1" | sed 's/\x1B\[[0-9;]*m//g')
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echo "${#clean_text}"
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}
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function style_padding {
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local left right
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local padding_left=${PADDING_LEFT:-$PADDING}
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local padding_right=${PADDING_RIGHT:-$PADDING}
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left=$(for _ in $(seq 1 "${padding_left}"); do builtin echo -n ' '; done)
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style_ansi "$left"
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style_ansi "$1"
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# builtin echo -n "$1"
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right=$(for _ in $(seq 1 "${padding_right}"); do builtin echo -n ' '; done)
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style_ansi "$right"
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}
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function _style_fg {
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[[ -n $1 ]] && echo "${FG_COLORS[$1]}" || true
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}
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function _style_variant {
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[[ -n $1 ]] && echo "${STYLE_VARIANTS[$1]}" || true
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}
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function _style_bg {
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if [[ -n "$1" ]]; then
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[[ -v BG_COLORS[$1] ]] && echo "${BG_COLORS[$1]}" && return
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>&2 echo "unknown BG value: $1" && return 1
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# false
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fi
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}
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function style_ansi {
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local fg bg variant
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fg=$(_style_fg "${FG:-}") && [[ -n $fg ]] && builtin echo -en "$fg"
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bg=$(_style_bg "${BG:-}") && [[ -n $bg ]] && builtin echo -en "$bg"
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variant=$(_style_variant "${STYLE:-}") && [[ -n $variant ]] && builtin echo -en "$variant"
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builtin echo -en "$1"
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[[ -n $fg || -n $bg || -n $variant ]] && builtin echo -en "$ANSI_RESET"
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true
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}
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function style_block {
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local content length top bottom i
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content=$(style_padding "$1")
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length=$(ansi_length "$content")
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top=$(
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builtin echo -n "╔"
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for _ in $(seq 1 "${length}"); do builtin echo -n '═'; done
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builtin echo "╗"
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)
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style_ansi "${top}" && builtin echo
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style_ansi "║"
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style_ansi "${content}"
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style_ansi "║" && builtin echo
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bottom=$(
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builtin echo -n "╚"
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for i in $(seq 1 "${length}"); do
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if [[ $i == "$BLOCK_CONTINUATION_COL" ]]; then
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builtin echo -n "$BLOCK_CONTINUATION_SYMBOL"
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else
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builtin echo -n '═'
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fi
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done
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builtin echo "╝"
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)
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style_ansi "${bottom}" && builtin echo
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}
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