28 lines
510 B
Bash
28 lines
510 B
Bash
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THIS=${0##*/}
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NEWLINE='
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'
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err () { echo "$*" | fold -s -w ${COLUMNS:-110} >&2; }
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errn () { printf "$*" | fold -s -w ${COLUMNS:-110} >&2; }
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# Portable which(1).
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pathfind () {
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oldifs="$IFS"; IFS=':'
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for _p in $PATH; do
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if [ -x "$_p/$*" ] && [ -f "$_p/$*" ]; then
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IFS="$oldifs"
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return 0
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fi
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done
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IFS="$oldifs"
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return 1
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}
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for p in pandoc $REQUIRED; do
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pathfind $p || {
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err "You need '$p' to use this program!"
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exit 1
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}
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done
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