From bbf01ada6b2f748618db820624bf768989a11924 Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Fri, 30 Apr 2021 18:52:36 -0600
Subject: fetch folders

---
 ctec/imap_response.py | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 ctec/imap_response.py

(limited to 'ctec/imap_response.py')

diff --git a/ctec/imap_response.py b/ctec/imap_response.py
new file mode 100644
index 0000000..23ca943
--- /dev/null
+++ b/ctec/imap_response.py
@@ -0,0 +1,46 @@
+# this should really be in the stdlib imo
+from dataclasses import dataclass
+from typing import List as ListT, Union, ClassVar
+
+from .parse_utils import ParseResult, Parser, take_while1, tag, delimited, take_n, alt, map_parser, separated_many0, separated_triple, all_consuming
+
+__all__ = [
+    'List',
+]
+
+atom: Parser[str] = take_while1(lambda c: c.isalnum() or c in r'\/')
+
+number: Parser[int] = map_parser(take_while1(str.isnumeric), int)
+
+def literal_string(text: str) -> ParseResult[str]:
+    delimited_result = delimited(tag('{'), number, tag('}\r\n'))(text)
+    if delimited_result is None:
+        return None
+    count, text = delimited_result
+    return take_n(count)(text)
+
+quoted_string: Parser[str] = delimited(tag('"'), take_while1(lambda c: c not in '\r\n"'), tag('"'))
+
+string: Parser[str] = alt(literal_string, quoted_string)
+
+astring: Parser[str] = alt(atom, string)
+
+data_item: Parser[Union[int, str]] = alt(number, atom, string)
+
+ParensList = ListT[Union[int, str, 'ParensList']]
+def parens_list(text: str) -> ParseResult[ParensList]:
+    return delimited(tag('('), separated_many0(alt(data_item, parens_list), tag(' ')), tag(')'))(text)
+
+@dataclass
+class List:
+    attributes: ListT[str]
+    delimiter: str
+    name: str
+
+    @staticmethod
+    def parse(response: bytes) -> 'List':
+        response = response.decode('ASCII')
+        print(response)
+        parser = all_consuming(separated_triple(parens_list, tag(' '), string, tag(' '), astring), debug=True)
+        (attributes, delimiter, name), _ = parser(response)
+        return List(attributes, delimiter, name)
-- 
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