--HG--

branch : pmacs2

IDEAS

@@ -1,3 +1,8 @@
+2009/02/05:
+
+Create some more rules for lexing that will help things like XML be more
+efficient.
+
 2009/01/28:
 
 Move modes into buffers and out of windows. This should reduce the memory

application.py

@@ -783,6 +783,7 @@ class Application(object):
         modename = w.mode.name()
 
         # draw the header
+        if w.mode.header:
             rstrs = w.mode.get_header()
             assert len(rstrs) >= w.mode.header
             for j in range(0, w.mode.header):

code_examples/example.xml

@@ -1,6 +1,4 @@
-<foo some_attr='blah'
+<foo some_attr='blah' other_attr='foo' c='9'>
-     other_attr='foo'
-     c='9'>
     <bijj a="222" b="999">
         <blah a='1' b='2' c='3' />
         fjjgg

mode/__init__.py

@@ -313,9 +313,45 @@ class Fundamental(Handler):
         self.lmargin = 0
 
     # headers and margins
+    #def get_header(self):
+    #    fg, bg = "default", "red"
+    #    return [RenderString(s='header', attrs=color.build(fg, bg))]
     def get_header(self):
         fg, bg = "default", "red"
-        return [RenderString(s='header', attrs=color.build(fg, bg))]
+
+        if self.tabber is None:
+            s = "Header support is not available for this mode"
+            hs = [RenderString(s=s, attrs=color.build(fg, bg))]
+            while len(hs) < 3:
+                hs.insert(0, RenderString(s='', attrs=color.build(fg, bg)))
+            return hs
+
+        w = self.window
+        y = self.window.first.y
+        if self.window.first.x > 0:
+            y += 1
+        lvl = self.tabber.get_level(y)
+        markers = self.tabber.record[y]
+        if w.buffer.is_whitespace(y):
+            ws = None
+        else:
+            ws = w.buffer.count_leading_whitespace(y)
+
+        hs = []
+        i = len(markers) - 1
+        while i >= 0 and len(hs) < 3:
+            marker = markers[i]
+            i -= 1
+            if marker.y == y:
+                continue
+            if ws and marker.level > ws:
+                continue
+            s = w.buffer.lines[marker.y][:w.width - 1]
+            hs.insert(0, RenderString(s=s, attrs=color.build(fg, bg)))
+        while len(hs) < 3:
+            hs.insert(0, RenderString(s='', attrs=color.build(fg, bg)))
+        return hs
+
     def get_footer(self):
         fg, bg = "default", "red"
         return [RenderString(s='footer', attrs=color.build(fg, bg))]

mode/python.py

@@ -583,6 +583,14 @@ class Python(mode.Fundamental):
         self.header = 0
     def get_header(self):
         fg, bg = "default", "red"
+
+        if self.tabber is None:
+            s = "Header support is not available for this mode"
+            hs = [RenderString(s=s, attrs=color.build(fg, bg))]
+            while len(hs) < 3:
+                hs.insert(0, RenderString(s='', attrs=color.build(fg, bg)))
+            return hs
+
         w = self.window
         y = self.window.first.y
         if self.window.first.x > 0: