Initial commit

tagger.py

@@ -0,0 +1,67 @@
+import glob
+import re
+
+# no I, no O
+CHARACTERS = "0123456789ABCDEFGHJKLMNPQRSTUVWXYZ"
+
+# convert integer to tag
+def tobase(i):
+  global CHARACTERS
+
+  assert i >= 0
+
+  if i < len(CHARACTERS):
+    return CHARACTERS[i]
+  else:
+    return tobase(i // len(CHARACTERS)) + CHARACTERS[i % len(CHARACTERS)]
+
+def totag(i):
+  return tobase(i).rjust(4, "0")
+
+# convert tag to integer
+def toint(tag):
+  global CHARACTERS
+  return sum([CHARACTERS.index(tag[i]) * len(CHARACTERS)**(4-i-1) for i in range(4)])
+
+tags = dict()
+labels = dict()
+inactive = []
+
+try:
+  with open("tags") as f:
+    for line in f:
+      # actual tag
+      if not line.startswith("#"):
+        tags[line.split(",")[0]] = line.strip().split(",")[1]
+        labels[line.strip().split(",")[1]] = line.strip().split(",")[0]
+
+      # check for inactive tags too
+      elif len(line.split(",")) == 2 and len(line.split(",")[0]) == 4:
+        inactive.append(line.split(",")[0])
+
+except FileNotFoundError:
+  pass
+
+# determine last assigned tag
+try:
+  last = toint(sorted(list(tags.keys()) + inactive)[-1])
+except IndexError:
+  last = -1
+
+
+#filenames = glob.glob("*.tex")
+filenames = ["document.tex"]
+
+# where we should start
+i = last + 1
+
+for filename in filenames:
+  with open(filename) as f:
+    # do this line per line to deal with comments
+    for line in f:
+      matches = re.findall("\\\\label{([^}]+)}", line.split("%")[0])
+      for label in matches:
+        if not label in labels:
+          tag = tobase(i).rjust(4, "0")
+          print("%s,%s" % (tag, label))
+          i = i + 1