added comments

1 files changed, 37 insertions, 0 deletions

diff --git a/getbib b/getbib
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index 0000000..47887f6
--- /dev/null
+++ b/getbib
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+#!/bin/bash
+
+if [ -z "$1" ]; then
+  echo "Provide a pdf."
+  exit 1
+fi
+
+PDF="$1"
+
+# 1. Convert PDF to text
+TEXT=$(pdftotext "$PDF" -)
+
+# 2. Convert text to a single line
+ONELINE=$(printf "%s" "$TEXT" | tr '\n' ' ')
+
+# 3. Exctract DOIs
+DOIS=$(printf "%s" "$ONELINE" | \
+       grep -aoE '10\.[0-9]{4,9}/[A-Za-z0-9._;()/:<>-]+' | \
+       sort -u)
+
+if [ -z "$DOIS" ]; then
+  echo "No DOI found."
+  exit 1
+fi
+
+# 4. Get Crossref-BibTeX for every DOI
+for DOI in $DOIS; do
+    echo "Gefundene DOI: $DOI"
+    
+    ENCODED_DOI=$(printf "%s" "$DOI" | sed 's/\//%2F/g')
+    URL="https://api.crossref.org/works/$ENCODED_DOI/transform"
+
+    echo
+    echo "BibTeX:"
+    curl -L -s -H "Accept: text/bibliography; style=bibtex" "$URL"
+done
+