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solarize: fix substring error when /bin/sh is not bash

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The substring expansion ${parameter:offset:length} is a bashism and does
not work when /bin/sh points to a shell other than bash, e.g. on Ubuntu.

This commit replaces this expansion with a call to awk, inspired by the
solution at:

        https://wiki.ubuntu.com/DashAsBinSh
This commit is contained in:
Fernando Schauenburg 2021-03-09 17:04:11 +01:00
parent 9c4c579938
commit a5322715f6
1 changed files with 18 additions and 18 deletions
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36
bin/solarize
View file

@ -40,8 +40,8 @@ fi
# under the heading "Change the color palette".
set_iterm2_colors() { # 1: foreground, 2: background, 3: cursor
while read -r key rgb; do
printf "%s1337;SetColors=%s=%s%s" "$_OSC" "$key" "${rgb}" "$_ST"
done <<EOL
printf "%s1337;SetColors=%s=%s%s" "$_OSC" "$key" "$rgb" "$_ST"
done <<EOF
black $Base02
red $Red
green $Green
@ -66,20 +66,20 @@ set_iterm2_colors() { # 1: foreground, 2: background, 3: cursor
curfg $3
curbg $3
link $Cyan
EOL
EOF
printf "%s1337;CursorShape=2%s" "$_OSC" "$_ST" # set cursor shape to underline
}
# Documentation for xterm at https://www.xfree86.org/4.8.0/ctlseqs.html
# under the heading "Operating System Controls".
set_xterm_colors() { # $1 foreground, $2 background, $3 cursor
while read -r c rgb; do
# Send sequence OSC Ps BEL
# where Ps -> 4;c;spec
# c -> index of the ANSI color to change [0..15]
# spec -> RGB value of color as rgb:RR/GG/BB
printf "%s4;%s;rgb:%s/%s/%s%s" "$_OSC" "$c" "${rgb:0:2}" "${rgb:2:2}" "${rgb:4:2}" "$_ST"
done <<EOL
# Send sequence OSC Ps BEL
# where Ps -> 4;c;spec
# c -> index of the ANSI color to change [0..15]
# spec -> RGB value of color as rgb:RR/GG/BB
awk -v osc="$_OSC" -v st="$_ST" -v ORS="" \
'{print osc "4;" $1 ";rgb:" substr($2,1,2) "/" substr($2,3,2) "/" substr($2,5,2) st}' \
<<EOF
0 $Base02
1 $Red
2 $Green
@ -96,17 +96,17 @@ set_xterm_colors() { # $1 foreground, $2 background, $3 cursor
13 $Violet
14 $Base1
15 $Base3
EOL
while read -r Ps rgb; do
# Send sequence OSC Ps ; Pt BEL
# where Ps -> foreground (10), background (11), or cursor (12)
# Pt -> RGB value of color as rgb:RR/GG/BB
printf "%s%s;rgb:%s/%s/%s%s" "$_OSC" "$Ps" "${rgb:0:2}" "${rgb:2:2}" "${rgb:4:2}" "$_ST"
done <<EOL
EOF
# Send sequence OSC Ps ; Pt BEL
# where Ps -> foreground (10), background (11), or cursor (12)
# Pt -> RGB value of color as rgb:RR/GG/BB
awk -v osc="$_OSC" -v st="$_ST" -v ORS="" \
'{print osc $1 ";rgb:" substr($2,1,2) "/" substr($2,3,2) "/" substr($2,5,2) st}' \
<<EOF
10 $1
11 $2
12 $3
EOL
EOF
}
set_terminal_colors() { # 1: foreground, 2: background, 3: cursor