Moved plugins to their own repo

optional_balance.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+from beancount.core import data
+from beancount.core import account
+from beancount.core import getters
+from beancount.core import amount
+from beancount.core import account_types
+from beancount.core import realization
+from beancount.core.number import D
+from beancount.parser import options
+
+import re
+
+__plugins__ = ('optional_balance_plugin',)
+
+def optional_balance_plugin(entries, options_map, config):
+    try:
+        match_enabled = re.compile(config)
+    except Exception as e:
+        print(f"exception {e}")
+        return entries, [e]
+
+    errors = []
+    new_entries = []
+    for entry in entries:
+        if isinstance(entry, data.Custom):
+            if entry.type == "optional-balance":
+                try:
+                    assert(len(entry.values) == 4)
+                    type, acc, units, curr = entry.values
+                    if not match_enabled.match(type.value):
+                        continue
+                    v = amount.Amount(number=D(units.value), currency=curr.value)
+                    entry = data.Balance(meta=entry.meta, date=entry.date, account=acc.value, amount=v, tolerance=None, diff_amount=None)
+                except Exception as e:
+                    print(f"exception {e}")
+                    errors.append(e)
+        
+        new_entries.append(entry)
+
+    return new_entries, errors