...

src/calibre/gui2/store/search/models.py

@@ -22,6 +22,7 @@ from calibre.utils.icu import sort_key
 from calibre.utils.search_query_parser import SearchQueryParser
 
 def comparable_price(text):
+    text = re.sub(r'[^0-9.,]', '', text)
     if len(text) < 3 or text[-3] not in ('.', ','):
         text += '00'
     text = re.sub(r'\D', '', text)
@@ -293,6 +294,7 @@ class SearchFilter(SearchQueryParser):
         return self.srs
 
     def get_matches(self, location, query):
+        query = query.strip()
         location = location.lower().strip()
         if location == 'authors':
             location = 'author'

src/calibre/gui2/store/search/search.py

@@ -22,6 +22,7 @@ from calibre.gui2.store.search.adv_search_builder import AdvSearchBuilderDialog
 from calibre.gui2.store.search.download_thread import SearchThreadPool, \
     CacheUpdateThreadPool
 from calibre.gui2.store.search.search_ui import Ui_Dialog
+from calibre.utils.filenames import ascii_filename
 
 class SearchDialog(QDialog, Ui_Dialog):
 
@@ -350,6 +351,7 @@ class SearchDialog(QDialog, Ui_Dialog):
         if d.exec_() == d.Accepted:
             ext = d.format()
             fname = result.title + '.' + ext.lower()
+            fname = ascii_filename(fname)
             self.gui.download_ebook(result.downloads[ext], filename=fname)
     
     def open_store(self, result):

src/calibre/gui2/store/stores/smashwords_plugin.py

@@ -77,9 +77,12 @@ class SmashwordsStore(BasicStoreConfig, StorePlugin):
                 title = ''.join(data.xpath('//a[@class="bookTitle"]/text()'))
                 subnote = ''.join(data.xpath('//span[@class="subnote"]/text()'))
                 author = ''.join(data.xpath('//span[@class="subnote"]/a/text()'))
+                if '$' in subnote:
                     price = subnote.partition('$')[2]
                     price = price.split(u'\xa0')[0]
                     price = '$' + price
+                else:
+                    price = '$0.00'
 
                 counter -= 1