dotfiles

commit 345d3bfe275cec50647214312e9efa65db7b3fe8
parent 7ef4aa35636e8de351e0b0c5018d8fea6455a850
Author: Anders Damsgaard <anders@adamsgaard.dk>
Date:   Thu, 11 Apr 2019 09:43:28 +0200

Allow getdoi to read DOI from pdfs

Diffstat:
M
bin/getdoi
 | 
22
++++++++++++++++++++--

1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/bin/getdoi b/bin/getdoi
@@ -6,7 +6,9 @@ host="http://api.crossref.org/works"
 function show_help {
     echo "usage: ${0##*/} [OPTIONS] QUERY"
     echo "will attempt to get the DOI from $host"
-    echo "where QUERY can consist of publication title, author, DOI, ORCID id."
+    echo "where QUERY can consist of publication title, author, DOI, ORCID id,"
+    echo "or a PDF file. In case a file is specified, ${0##*/} will attempt to"
+    echo "extract the DOI from it."
     echo "If no QUERY is specified, this program will expect a QUERY as stdin."
     echo
     echo "OPTIONS are one or more of the following:"
@@ -35,7 +37,7 @@ function extract_dois {
         sed 's/.*DOI":"//' | sed 's/"}.*//' | sed 's|\\\/|/|g'
 }
 
-function get_doi {
+function get_doi_from_crossref {
     query="$(echo "$@" | sed 's/ /+/g')"
     url="$host?rows=$number&select=DOI&query=$query"
     [ "$verbose" = 1 ] && echo "connecting to $url"
@@ -46,6 +48,22 @@ function get_doi {
     echo "$result" | extract_dois
 }
 
+function get_doi_from_file {
+    doi=$(pdfinfo "$1" | grep -io "doi.*") ||
+    doi=$(pdftotext "$1" 2>/dev/null - | grep -io "doi.*" -m 1 ) ||
+    die "Error: Could not extract DOI from file $doi"
+    doi=$(echo "$doi" | sed 's/[A-Za-z\.\/:]*//;s/[\.,]$//')
+    echo "$doi"
+}
+
+function get_doi {
+    if [ -e "$1" ]; then
+        get_doi_from_file "$1"
+    else
+        get_doi_from_crossref "$@"
+    fi
+}
+
 verbose=0
 number=1
 prefix=""