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Refactor wish_append.

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Use parameter splitting instead of splitting into array via grep. Speeds
the prompt upto 2x in some cases.
This commit is contained in:
Ceda EI
2019-09-06 20:35:29 +05:30
parent ffe7975dfa
commit 886ec3bfaf
1 changed files with 34 additions and 26 deletions
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60
wish.sh
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@@ -35,37 +35,45 @@ function wish_init() {
done
}
# Usage: color_to_escape_code [3|4] color
#
# Parameters:
# - [3|4]: Use 3 if escape code is for foreground, 4 for background
# - color: -1 to reset, 0-255 for terminal color codes. 6 digit hexadecimal
# value for true color.
#
# Return value: Prints escape code that sets the fg/bg as requested.
function color_to_escape_code() {
local choice=$1
local color=$2
if [[ $color == -1 ]]; then
echo "\[\033[0;5;0m\]"
else
if [[ ${#fg_code} -eq 6 ]]; then
local r=$(( 16#${color:0:2} ))
local g=$(( 16#${color:2:2} ))
local b=$(( 16#${color:4:2} ))
echo "\[\033[${choice}8;2;$r;$g;${b}m\]"
else
echo "\[\033[${choice}8;5;${fg_code}m\]"
fi
fi
}
# Usage: wish_append bg fg text
#
# Parameters:
# - fg, bg: -1 to reset, 0-255 for terminal color codes. 6 digit hexadecimal
# value for true color.
# - text: Text of the plugin
#
# Return value: None
function wish_append() {
local bg_code=$1
local fg_code=$2
local text=$3
if [[ $fg_code == -1 ]]; then
local fg="\[\033[0;5;0m\]"
else
if [[ ${#fg_code} -eq 6 ]]; then
local color=($(echo $fg_code | grep -o .))
local r=$(( 16#${color[0]}${color[1]} ))
local g=$(( 16#${color[2]}${color[3]} ))
local b=$(( 16#${color[4]}${color[5]} ))
local fg="\[\033[38;2;$r;$g;${b}m\]"
else
local fg="\[\033[38;5;${fg_code}m\]"
fi
fi
if [[ $bg_code == -1 ]]; then
local bg="\[\033[0;5;0m\]"
else
if [[ ${#bg_code} -eq 6 ]]; then
local color=($(echo $bg_code | grep -o .))
local r=$(( 16#${color[0]}${color[1]} ))
local g=$(( 16#${color[2]}${color[3]} ))
local b=$(( 16#${color[4]}${color[5]} ))
local bg="\[\033[48;2;$r;$g;${b}m\]"
else
local bg="\[\033[48;5;${bg_code}m\]"
fi
fi
local fg=$(color_to_escape_code 3 $fg_code)
local bg=$(color_to_escape_code 4 $bg_code)
if [[ $fg_code == -1 ]]; then
PS1="$PS1$fg${bg}$text"