js-compress.sh

#! /bin/sh -e
# Concatenate and strip JavaScript files
HEADER=$1
shift
JS_VERSION=`grep -h "version_string = " "$@" | cut -f2 -d'"'`
FILE_INVENTORY=
for f; do
    FILE_INVENTORY="$FILE_INVENTORY `basename $f`"
done
sed -e "s/@JS_VERSION@/$JS_VERSION/" -e "s/@FILE_INVENTORY@/$FILE_INVENTORY/" \
    $HEADER
cat <<EOF
(function(cb){
EOF
for f; do
    echo "// `basename $f`"
    # The first regex matches /*...*/ style comments where ... is any
    # number of \*[^/] and [^*].  This has the defect that the it
    # won't detect, e.g., **/ as the end of the comment.
    tr '\n' '\r' < $f |
	sed -e 's%/\*\(\*[^/]\|[^*]\)*\*/%%g' | tr '\r' '\n' |
	sed -e 's%//.*%%' | tr -s '	 ' ' ' |
	sed -e 's/^ //' -e 's/ $//' | grep -v '^$' |
	sed -e 's/\([^"A-Za-z0-9_]\) /\1/g' -e 's/ \([^\["A-Za-z0-9_]\)/\1/g'
done
# support loading with node's require
cat <<EOF
cb(GeographicLib);
})(function(geo){
if(typeof module==='object'&&module.exports){
module.exports=geo;
}else if(typeof define==='function'&&define.amd){
define('geographiclib',[],function(){return geo;});
}else{
window.GeographicLib=geo;
}
});
EOF