1 files changed, 43 insertions, 0 deletions
diff --git a/wrappers/common.sh b/wrappers/common.sh
new file mode 100644
index 000000000..9605f5940
--- /dev/null
+++ b/wrappers/common.sh
@@ -0,0 +1,43 @@
+THIS=${0##*/}
+
+NEWLINE='
+'
+
+err ()  { echo "$*"   | fold -s -w ${COLUMNS:-110} >&2; }
+errn () { printf "$*" | fold -s -w ${COLUMNS:-110} >&2; }
+
+usage () {
+    err "$1 - $2" # short description
+    err "See the $1(1) man page for usage."
+}
+
+# Portable which(1).
+pathfind () {
+    oldifs="$IFS"; IFS=':'
+    for _p in $PATH; do
+        if [ -x "$_p/$*" ] && [ -f "$_p/$*" ]; then
+            IFS="$oldifs"
+            return 0
+        fi
+    done
+    IFS="$oldifs"
+    return 1
+}
+
+for p in pandoc $REQUIRED; do
+    pathfind $p || {
+        err "You need '$p' to use this program!"
+        exit 1
+    }
+done
+
+CONF=$(pandoc --dump-args "$@" 2>&1) || {
+    errcode=$?
+    echo "$CONF" | sed -e '/^pandoc \[OPTIONS\] \[FILES\]/,$d' >&2
+    [ $errcode -eq 2 ] && usage "$THIS" "$SYNOPSIS"
+    exit $errcode
+}
+
+OUTPUT=$(echo "$CONF" | sed -ne '1p')
+ARGS=$(echo "$CONF" | sed -e '1d')
+