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spectrum: optimize ANSI color initialization loops

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Split the single loop that initializes both named
ANSI colors (0–7) and the remaining 256-color indices
into two separate loops.

The first loop sets both numeric and name keys for
the named ANSI colors without per-iteration checks,
and the second loop sets only numeric keys for the
remaining indices.
This commit is contained in:
Indrajit Raychaudhuri
2026-03-22 02:39:11 -05:00
parent 7fcc9d2dad
commit 331adc4a69
1 changed files with 11 additions and 7 deletions
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18
modules/spectrum/init.zsh
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@@ -56,14 +56,18 @@ FX=(
FG[none]="$FX[none]"
BG[none]="$FX[none]"
colors=(black red green yellow blue magenta cyan white)
for color in {0..255}; do
if (( $color >= 0 )) && (( $color < $#colors )); then
index=$(( $color + 1 ))
FG[$colors[$index]]="\e[38;5;${color}m"
BG[$colors[$index]]="\e[48;5;${color}m"
fi
# Named ANSI colors (0–7) have both numeric and name keys.
for color in {0..7}; do
FG[$colors[color+1]]="\e[38;5;${color}m"
BG[$colors[color+1]]="\e[48;5;${color}m"
FG[$color]="\e[38;5;${color}m"
BG[$color]="\e[48;5;${color}m"
done
unset color{s,} index
# Remaining 256-color indices have only numeric keys.
for color in {8..255}; do
FG[$color]="\e[38;5;${color}m"
BG[$color]="\e[48;5;${color}m"
done
unset color{s,}