use double_br to simplify the code

clear_html/formatted_text/main.py

@@ -27,6 +27,7 @@
 from clear_html.formatted_text.headings import normalize_headings_level
 from clear_html.formatted_text.utils import (
  clean_incomplete_structures,
+ double_br,
  kill_tag_content,
  remove_empty_tags,
  set_article_tag_as_root,
@@ -116,12 +117,10 @@ def paragraphy(doc: HtmlElement):
  start, end = None, None
  for idx, child in enumerate(doc):
  if child.tag == "br":
- prev_child = child.getprevious()
- if prev_child is None or prev_child.tag != "br" or has_tail(prev_child):
+ if not double_br(child.getprevious()):
  # A br without previous consecutive br was found
  start = idx
- next_child = child.getnext()
- if next_child is None or next_child.tag != "br" or has_tail(child):
+ if not double_br(child):
  # A br without next consecutive br was found
  end = idx
  if start == end:

clear_html/formatted_text/utils.py

@@ -163,12 +163,12 @@ def drop_tag_preserve_spacing(doc: HtmlElement, preserve_content=True):
  prev_is_inline = (
  doc_prev is not None
  and doc_prev.tag in PHRASING_CONTENT
- and not _double_br(doc_prev.getprevious())
+ and not double_br(doc_prev.getprevious())
  )
  after_is_inline = (
  doc_next is not None
  and doc_next.tag in PHRASING_CONTENT
- and not _double_br(doc_next)
+ and not double_br(doc_next)
  )
 
  has_text_prev = bool(prev_text(doc).strip()) or prev_is_inline
@@ -192,7 +192,7 @@ def drop_tag_preserve_spacing(doc: HtmlElement, preserve_content=True):
  doc.drop_tree()
 
 
-def _double_br(doc: Optional[HtmlElement]):
+def double_br(doc: Optional[HtmlElement]):
  """True if doc and next element are "br" tags without text in between."""
  if doc is None or doc.tag != "br":
  return False