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Minor robustness improvements

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This commit is contained in:
Kovid Goyal
2025-11-24 10:22:36 +05:30
parent 905e72baa2
commit 9fdebd66cb
1 changed files with 4 additions and 4 deletions
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8
docs/graphics-protocol.rst
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@@ -178,18 +178,18 @@ features of the graphics protocol:
#!/bin/sh
transmit_png() {
if base64 --help 2>&1 | grep -q -- '--wrap='; then # Linux (GNU coreutils)
if command base64 --help 2>&1 | grep -q -- '--wrap='; then # Linux (GNU coreutils)
base64_flag="-w"
elif base64 --help 2>&1 | grep -q -- '--break '; then # macOS/BSD
elif command base64 --help 2>&1 | grep -q -- '--break '; then # macOS/BSD
base64_flag="-b"
else
echo "Unknown base64 command: cannot set line width" >&2
exit 1
fi
first="y"
base64 "$base64_flag" 4096 "$1" | while IFS= read -r chunk; do
command base64 "$base64_flag" 4096 "$1" | while IFS= read -r chunk; do
printf "\033_G"
[ $first != "n" ] && printf "a=T,f=100,"
[ "$first" != "n" ] && printf "a=T,f=100,"
first="n"
printf "m=1;%s\033\\" "${chunk}"
done