tReturn input if already a doi - scholarref - tools for DOI and BiBTeX reference extraction, fetching, and parsing
  HTML git clone git://src.adamsgaard.dk/scholarref
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit e655a934bf785bc43e71026e2ba1ae13ef0fc363
   DIR parent d9efb84392ad1186ef7a7cac6daeab02b306d1d4
  HTML Author: Anders Damsgaard <anders@adamsgaard.dk>
       Date:   Wed, 18 Sep 2019 13:00:26 +0200
       
       Return input if already a doi
       
       Diffstat:
         M getdoi                              |       6 +++++-
       
       1 file changed, 5 insertions(+), 1 deletion(-)
       ---
   DIR diff --git a/getdoi b/getdoi
       t@@ -76,7 +76,11 @@ get_doi() {
                if [ -e "$1" ]; then
                        doi=$(get_doi_from_file "$1")
                else
       -                doi=$(get_doi_from_crossref "$@")
       +                if [ $(expr "$1" : '^10\.[0-9]\+\/.*') -gt 0 ]; then
       +                        doi="$1"
       +                else
       +                        doi=$(get_doi_from_crossref "$@")
       +                fi
                fi
                echo "$doi"
                [ "$clip" = 1 ] && echo "https://doi.org/${doi}" | \