added wrap option

closes #66

README.rst

@@ -130,6 +130,11 @@ keep_inline_images_in
   that should be allowed to contain inline images, for example ``['td']``.
   Defaults to an empty list.
 
+wrap, wrap_width
+  If ``wrap`` is set to ``True``, all text paragraphs are wrapped at
+  ``wrap_width`` characters. Defaults to ``False`` and ``80``.
+  Use with ``newline_style=BACKSLASH`` to keep line breaks in paragraphs.
+
 Options may be specified as kwargs to the ``markdownify`` function, or as a
 nested ``Options`` class in ``MarkdownConverter`` subclasses.
 

markdownify/__init__.py

@@ -1,4 +1,5 @@
 from bs4 import BeautifulSoup, NavigableString, Comment, Doctype
+from textwrap import fill
 import re
 import six
 
@@ -75,6 +76,8 @@ class MarkdownConverter(object):
         strong_em_symbol = ASTERISK
         sub_symbol = ''
         sup_symbol = ''
+        wrap = False
+        wrap_width = 80
 
     class Options(DefaultOptions):
         pass
@@ -331,6 +334,11 @@ class MarkdownConverter(object):
     def convert_p(self, el, text, convert_as_inline):
         if convert_as_inline:
             return text
+        if self.options['wrap']:
+            text = fill(text,
+                        width=self.options['wrap_width'],
+                        break_long_words=False,
+                        break_on_hyphens=False)
         return '%s\n\n' % text if text else ''
 
     def convert_pre(self, el, text, convert_as_inline):

tests/test_conversions.py

@@ -177,6 +177,11 @@ def test_kbd():
 
 def test_p():
     assert md('<p>hello</p>') == 'hello\n\n'
+    assert md('<p>123456789 123456789</p>') == '123456789 123456789\n\n'
+    assert md('<p>123456789 123456789</p>', wrap=True, wrap_width=10) == '123456789\n123456789\n\n'
+    assert md('<p><a href="https://example.com">Some long link</a></p>', wrap=True, wrap_width=10) == '[Some long\nlink](https://example.com)\n\n'
+    assert md('<p>12345<br />67890</p>', wrap=True, wrap_width=10, newline_style=BACKSLASH) == '12345\\\n67890\n\n'
+    assert md('<p>12345678901<br />12345</p>', wrap=True, wrap_width=10, newline_style=BACKSLASH) == '12345678901\\\n12345\n\n'
 
 
 def test_pre():