Added help text for empty shelves.

[wolnelektury.git] / lib / markupstring.py

diff --git a/lib/markupstring.py b/lib/markupstring.py
index f31e148..2ecf4cf 100644 (file)
--- a/lib/markupstring.py
+++ b/lib/markupstring.py
@@ -5,21 +5,21 @@
 import xml.sax
 
 
 import xml.sax
 
 

-class simpleHandler (xml.sax.ContentHandler):
+class simpleHandler(xml.sax.ContentHandler):

     """A simple handler that provides us with indices of marked up content."""
     """A simple handler that provides us with indices of marked up content."""

-    def __init__ (self):        
+    def __init__(self):        

         self.elements = [] #this will contain a list of elements and their start/end indices
         self.open_elements = [] #this holds info on open elements while we wait for their close
         self.content = ""
 
         self.elements = [] #this will contain a list of elements and their start/end indices
         self.open_elements = [] #this holds info on open elements while we wait for their close
         self.content = ""
 

-    def startElement (self,name,attrs):
+    def startElement(self,name,attrs):

         if name=='foobar': return # we require an outer wrapper, which we promptly ignore.
         self.open_elements.append({'name':name,
                                    'attrs':attrs.copy(),
                                    'start':len(self.content),
                                    })
 
         if name=='foobar': return # we require an outer wrapper, which we promptly ignore.
         self.open_elements.append({'name':name,
                                    'attrs':attrs.copy(),
                                    'start':len(self.content),
                                    })
 

-    def endElement (self, name):
+    def endElement(self, name):

         if name=='foobar': return # we require an outer wrapper, which we promptly ignore.
         for i in range(len(self.open_elements)):
             e = self.open_elements[i]
         if name=='foobar': return # we require an outer wrapper, which we promptly ignore.
         for i in range(len(self.open_elements)):
             e = self.open_elements[i]


@@ -32,23 +32,23 @@ class simpleHandler (xml.sax.ContentHandler):
                 del self.open_elements[i]
                 return
 
                 del self.open_elements[i]
                 return
 

-    def characters (self, chunk):
+    def characters(self, chunk):

         self.content += chunk
 
 
         self.content += chunk
 
 

-class MarkupString (unicode):
+class MarkupString(unicode):

     """A simple class for dealing with marked up strings. When we are sliced, we return
     valid marked up strings, preserving markup."""
     """A simple class for dealing with marked up strings. When we are sliced, we return
     valid marked up strings, preserving markup."""

-    def __init__ (self, string):        
+    def __init__(self, string):        

         unicode.__init__(self, string)
         self.handler = simpleHandler()
         xml.sax.parseString((u"<foobar>%s</foobar>" % string).encode('utf-8'), self.handler)
         self.raw = self.handler.content
 
         unicode.__init__(self, string)
         self.handler = simpleHandler()
         xml.sax.parseString((u"<foobar>%s</foobar>" % string).encode('utf-8'), self.handler)
         self.raw = self.handler.content
 

-    def __getitem__ (self, n):
+    def __getitem__(self, n):

         return self.__getslice__(n,n+1)
 
         return self.__getslice__(n,n+1)
 

-    def __getslice__ (self, s, e):
+    def __getslice__(self, s, e):

         # only include relevant elements
         if not e or e > len(self.raw): e = len(self.raw)
         elements = filter(lambda tp: (tp[0][1] >= s and # end after the start...
         # only include relevant elements
         if not e or e > len(self.raw): e = len(self.raw)
         elements = filter(lambda tp: (tp[0][1] >= s and # end after the start...


@@ -92,3 +92,6 @@ class MarkupString (unicode):
             for et in ends[e]: outbuf+= et
         return MarkupString(outbuf)
 
             for et in ends[e]: outbuf+= et
         return MarkupString(outbuf)
 

+    def __len__(self):
+        return len(self.raw)
+