Added tools

tools/import_references.py

@@ -0,0 +1,56 @@
+import requests
+import sys
+import os
+import re
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        print(f"Usage: {sys.argv[0]} <reference file>.bib")
+
+    if not os.path.isfile(sys.argv[1]):
+        print(f"Not a valid file: {sys.argv[1]}")
+
+    data = ''
+    with open(sys.argv[1], 'r') as f:
+        data = f.read()
+
+    matches = re.findall(r'@([A-Z]+){([0-9]+)[},]', data, re.IGNORECASE | re.MULTILINE)
+    if matches is None:
+        print(f"Nothing to import")
+    records = set()
+    imports = set()
+    for match in matches:
+        record, label = match
+        if record.lower() == 'import' and label.isdigit():
+            imports.add(label)
+        else:
+            records.add(label)
+
+    append = ''
+    for label in imports:
+        if label in records:
+            continue
+        req = requests.get(
+            f"https://ieeexplore.ieee.org/rest/search/citation/format?recordIds={label}&download-format=download-bibtex",
+            headers={
+                'Accept': 'application/json',
+                'Referer': 'https://ieeexplore.ieee.org/document/' + label
+            }
+        )
+
+        req.raise_for_status()
+        bibtex = req.json().get('data')
+        if bibtex:
+            append += bibtex + '\n'
+            print(f"Imported {label} from IEEE Xplore")
+        else:
+            print(f"Failed to import {label} from IEEE Xplore")
+
+    data = re.sub("@IMPORT{[0-9]+}", r'', data)
+    data += append
+    data = data.replace('\r\n', '\n')
+    data = re.sub("@IMPORT{[0-9]+}", r'', data)
+    data = re.sub(r"[\n]{3,}", r'\n\n', data)
+
+    with open(sys.argv[1], 'w') as f:
+        f.write(data)

tools/readme.md

@@ -0,0 +1,9 @@
+
+## Import References
+
+Usage:
+```bash
+python import_references.py <path to .bib file>
+```
+
+It finds all instances of _@IMPORT{number}_, downloads biblatex data from IEEEXplore and adds to the same file.