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Get ascii size in a single wc call

This commit is contained in:
Dylan 2016-03-29 17:57:22 +11:00
parent 059eb0eec0
commit 5c6b680a1e
1 changed files with 5 additions and 6 deletions
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@ -1852,15 +1852,14 @@ getascii () {
export LC_ALL="$SYS_LOCALE"
# Turn the file into a variable and strip escape codes.
ascii_strip=$(<"$ascii")
ascii_strip=$(<"${ascii}")
ascii_strip=${ascii_strip//\$\{??\}}
ascii_strip=${ascii_strip//\\}
# Get length of longest line
length="$(wc -L 2>/dev/null <<< "$ascii_strip")"
# Get the height in lines
lines="$(($(wc -l 2>/dev/null <<< "$ascii_strip") + 1))"
ascii_size=($(wc -lL 2>/dev/null <<< "$ascii_strip"))
ascii_length=${ascii_size[0]}
ascii_height=${ascii_size[1]}
# Fallback to using awk on systems without 'wc -L'
[ -z "$length" ] && \
@ -2851,7 +2850,7 @@ if [ "$image" != "off" ]; then
[ -z "$info_height" ] && info_height=0
# Set cursor position dynamically based on height of ascii/text.
[ "$lines" -lt "$info_height" ] && lines="$info_height"
[ "$ascii_length" -lt "$info_height" ] && lines="$info_height"
printf "%b%s" "\033[${lines}H\033[${prompt_height}A"
fi