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9bfc05e Feb 15, 2011
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# Put standard ANSI color codes in shell parameters for easy use.
# Note that some terminals do not support all combinations.
emulate -L zsh
typeset -Ag color colour
color=(
# Codes listed in this array are from ECMA-48, Section 8.3.117, p. 61.
# Those that are commented out are not widely supported or aren't closely
# enough related to color manipulation, but are included for completeness.
# Attribute codes:
00 none # 20 gothic
01 bold # 21 double-underline
02 faint 22 normal
03 standout 23 no-standout
04 underline 24 no-underline
05 blink 25 no-blink
# 06 fast-blink # 26 proportional
07 reverse 27 no-reverse
08 conceal 28 no-conceal
# 09 strikethrough # 29 no-strikethrough
# Font selection:
# 10 font-default
# 11 font-first
# 12 font-second
# 13 font-third
# 14 font-fourth
# 15 font-fifth
# 16 font-sixth
# 17 font-seventh
# 18 font-eighth
# 19 font-ninth
# Text color codes:
30 black 40 bg-black
31 red 41 bg-red
32 green 42 bg-green
33 yellow 43 bg-yellow
34 blue 44 bg-blue
35 magenta 45 bg-magenta
36 cyan 46 bg-cyan
37 white 47 bg-white
# 38 iso-8316-6 # 48 bg-iso-8316-6
39 default 49 bg-default
# Other codes:
# 50 no-proportional
# 51 border-rectangle
# 52 border-circle
# 53 overline
# 54 no-border
# 55 no-overline
# 56 through 59 reserved
# Ideogram markings:
# 60 underline-or-right
# 61 double-underline-or-right
# 62 overline-or-left
# 63 double-overline-or-left
# 64 stress
# 65 no-ideogram-marking
)
# A word about black and white: The "normal" shade of white is really a
# very pale grey on many terminals; to get truly white text, you have to
# use bold white, and to get a truly white background you have to use
# bold reverse white bg-xxx where xxx is your desired foreground color
# (and which means the foreground is also bold).
# Map in both directions; could do this with e.g. ${(k)colors[(i)normal]},
# but it's clearer to include them all both ways.
local k
for k in ${(k)color}; do color[${color[$k]}]=$k; done
# Add "fg-" keys for all the text colors, for clarity.
for k in ${color[(I)3?]}; do color[fg-${color[$k]}]=$k; done
# This is inaccurate, but the prompt theme system needs it.
color[grey]=${color[black]}
color[fg-grey]=${color[grey]}
color[bg-grey]=${color[bg-black]}
# Assistance for the color-blind.
colour=(${(kv)color}) # A case where ksh namerefs would be useful ...
# The following are terminal escape sequences used by colored prompt themes.
local lc=$'\e[' rc=m # Standard ANSI terminal escape values
typeset -Hg reset_color bold_color
reset_color="$lc${color[none]}$rc"
bold_color="$lc${color[bold]}$rc"
# Foreground
typeset -AHg fg fg_bold fg_no_bold
for k in ${(k)color[(I)fg-*]}; do
fg[${k#fg-}]="$lc${color[$k]}$rc"
fg_bold[${k#fg-}]="$lc${color[bold]};${color[$k]}$rc"
fg_no_bold[${k#fg-}]="$lc${color[normal]};${color[$k]}$rc"
done
# Background
typeset -AHg bg bg_bold bg_no_bold
for k in ${(k)color[(I)bg-*]}; do
bg[${k#bg-}]="$lc${color[$k]}$rc"
bg_bold[${k#bg-}]="$lc${color[bold]};${color[$k]}$rc"
bg_no_bold[${k#bg-}]="$lc${color[normal]};${color[$k]}$rc"
done