Combining browser

bin/wcwidth-browser.py

@@ -389,17 +389,16 @@ def text_entry(self, ucs, name):
         return fmt.format(name_len=style.name_len,
                           delimiter=delimiter,
                           name=name, ucs=ucs,
-                          value=ord(ucs))
+                          value=ord(ucs if len(ucs) == 1 else ucs[1]))
 
 
-def main():
+def main(character_factory):
     term = Terminal()
     style = Style(heading=term.magenta,
                   hint=term.bright_cyan,
                   delimiter=u'|',
                   ) if term.number_of_colors else Style()
     screen = Screen(term, style)
-    character_factory = WcWideCharacterGenerator
     pager = Pager(term, screen, character_factory)
     if term.is_a_tty:
         signal.signal(signal.SIGWINCH, pager.on_resize)
@@ -410,4 +409,4 @@ def main():
         pager.run(writer=echo, reader=term.inkey)
 
 if __name__ == '__main__':
-    main()
+    main(WcWideCharacterGenerator)

bin/wcwidth-combining-browser.py

@@ -0,0 +1,32 @@
+browser = __import__('wcwidth-browser')
+import string
+import unicodedata
+from wcwidth import wcwidth, table_comb
+
+
+class WcCombinedCharacterGenerator(object):
+    def __init__(self, width=1):
+        self.characters = []
+        for boundaries in table_comb.NONZERO_COMBINING:
+            for i in range(boundaries[0], boundaries[1]+1):
+                self.characters.append(u'o' + browser.unichr(i))
+        self.characters.reverse()
+
+    def __next__(self):
+        while True:
+            if not self.characters:
+                raise StopIteration
+            ucs = self.characters.pop()
+            try:
+                name = string.capwords(unicodedata.name(ucs[1]))
+            except ValueError:
+                continue
+            return (ucs, name)
+
+    # python 2.6 - 3.3 compatibility
+    next = __next__
+
+
+if __name__ == '__main__':
+    browser.main(WcCombinedCharacterGenerator)
+

wcwidth/wcwidth.py

@@ -182,6 +182,9 @@ def wcswidth(pwcs, n=None):
     for char in pwcs[idx]:
         wcw = wcwidth(char)
         if wcw < 0:
+            ucs = ord(char)
+            if _bisearch(ucs, NONZERO_COMBINING):
+                continue
             return -1
         else:
             width += wcw