Take in account remarks by Fernando on code review

IPython/frontend/linefrontendbase.py

@@ -334,15 +334,20 b' class LineFrontEndBase(FrontEndBase):'
             self.execute(cleaned_buffer, raw_string=current_buffer)
             return True
         else:
+            # Start a new line.
             new_line_pos = -new_line_pos
             lines = current_buffer.split('\n')[:-1]
             prompt_less_lines = prompt_less_buffer.split('\n')
+            # Create the new line, with the continuation prompt, and the 
+            # same amount of indent than the line above it.
             new_line = self.continuation_prompt() + \
                   self._get_indent_string('\n'.join(
                                     prompt_less_lines[:new_line_pos-1]))
             if len(lines) == 1:
+                # We are starting a first continuation line. Indent it.
                 new_line += '\t'
             elif current_buffer[:-1].split('\n')[-1].rstrip().endswith(':'):
+                # The last line ends with ":", autoindent the new line.
                 new_line += '\t'
 
             if new_line_pos == 0:

IPython/frontend/tests/test_linefrontend.py

@@ -14,6 +14,7 b' __docformat__ = "restructuredtext en"'
 
 from IPython.frontend.linefrontendbase import LineFrontEndBase
 from copy import deepcopy
+import nose.tools as nt
 
 class ConcreteLineFrontEnd(LineFrontEndBase):
     """ A concrete class to test the LineFrontEndBase.
@@ -29,10 +30,8 b' def test_is_complete():'
     """ Tests line completion heuristic.
     """
     frontend = ConcreteLineFrontEnd()
-    assert not frontend.is_complete('for x in \\')
-    assert not frontend.is_complete('for x in (1, ):')
-    assert frontend.is_complete('for x in (1, ):\n  pass')
+    yield nt.assert_true, not frontend.is_complete('for x in \\')
+    yield nt.assert_true, not frontend.is_complete('for x in (1, ):')
+    yield nt.assert_true, frontend.is_complete('for x in (1, ):\n  pass')
 
 
-if __name__ == '__main__':
-    test_is_complete()

IPython/frontend/tests/test_prefilterfrontend.py

@@ -111,20 +111,20 b' def test_multiline():'
     f.input_buffer += 'print 1'
     f._on_enter()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '')
+    yield assert_equal, out_value, ''
     f._on_enter()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '1\n')
+    yield assert_equal, out_value, '1\n'
     f = TestPrefilterFrontEnd()
     f.input_buffer='(1 +'
     f._on_enter()
     f.input_buffer += '0)'
     f._on_enter()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '')
+    yield assert_equal, out_value, ''
     f._on_enter()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '1\n')
+    yield assert_equal, out_value, '1\n'
 
 
 @isolate_ipython0
@@ -137,13 +137,13 b' def test_capture():'
             'import os; out=os.fdopen(1, "w"); out.write("1") ; out.flush()'
     f._on_enter()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '1')
+    yield assert_equal, out_value, '1'
     f = TestPrefilterFrontEnd()
     f.input_buffer = \
             'import os; out=os.fdopen(2, "w"); out.write("1") ; out.flush()'
     f._on_enter()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '1')
+    yield assert_equal, out_value, '1'
 
      
 @isolate_ipython0
@@ -191,8 +191,8 b' def test_completion_simple():'
     f.input_buffer = 'zz'
     f.complete_current_input()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '\nzzza zzzb ')
-    assert_equal(f.input_buffer, 'zzz')
+    yield assert_equal, out_value, '\nzzza zzzb '
+    yield assert_equal, f.input_buffer, 'zzz'
 
 
 @isolate_ipython0
@@ -207,8 +207,8 b' def test_completion_parenthesis():'
     f.input_buffer = 'map(zz'
     f.complete_current_input()
     out_value = f.out.getvalue()
-    assert_equal(out_value, '\nzzza zzzb ')
-    assert_equal(f.input_buffer, 'map(zzz')
+    yield assert_equal, out_value, '\nzzza zzzb '
+    yield assert_equal, f.input_buffer, 'map(zzz'
 
 
 @isolate_ipython0

IPython/frontend/tests/test_process.py

@@ -16,7 +16,7 b' from cStringIO import StringIO'
 from time import sleep
 import sys
 
-from IPython.frontend._process import PipedProcess
+from IPython.frontend.process import PipedProcess
 from IPython.testing import decorators as testdec
 
 

IPython/frontend/wx/console_widget.py

@@ -65,7 +65,24 b' _DEFAULT_STYLE = {'
     'tripledouble'  : 'fore:#7F0000',
     'class'         : 'fore:#0000FF,bold,underline',
     'def'           : 'fore:#007F7F,bold',
-    'operator'      : 'bold'
+    'operator'      : 'bold',
+
+    # Default colors
+    'trace'         : '#FAFAF1', # Nice green
+    'stdout'        : '#FDFFD3', # Nice yellow
+    'stderr'        : '#FFF1F1', # Nice red
+
+    # Default scintilla settings
+    'antialiasing'  : True,
+    'carret_color'  : 'BLACK',
+    'background_color' :'WHITE', 
+
+    #prompt definition
+    'prompt_in1'    : \
+        '\n\x01\x1b[0;34m\x02In [\x01\x1b[1;34m\x02$number\x01\x1b[0;34m\x02]: \x01\x1b[0m\x02',
+
+    'prompt_out': \
+        '\x01\x1b[0;31m\x02Out[\x01\x1b[1;31m\x02$number\x01\x1b[0;31m\x02]: \x01\x1b[0m\x02',
     }
 
 # new style numbers
@@ -88,6 +105,9 b" ANSI_STYLES = {'0;30': [0, 'BLACK'], '0;31': [1, 'RED'],"
                                                  [13, 'MEDIUM VIOLET RED'],
                '1;36': [14, 'LIGHT STEEL BLUE'], '1;37': [15, 'YELLOW']}
 
+# XXX: Maybe one day we should factor this code with ColorANSI. Right now
+# ColorANSI is hard to reuse and makes our code more complex.
+
 #we define platform specific fonts
 if wx.Platform == '__WXMSW__':
     FACES = { 'times': 'Times New Roman',
@@ -274,35 +294,21 b' class ConsoleWidget(editwindow.EditWindow):'
 
 
     def configure_scintilla(self):
-
-        p = self.style
+        """ Set up all the styling option of the embedded scintilla
+            widget.
+        """
+        p = self.style.copy()
         
-        #First we define the special background colors        
-        if 'trace' in p:
-            _COMPLETE_BUFFER_BG = p['trace']
-        else:
-            _COMPLETE_BUFFER_BG = '#FAFAF1' # Nice green
-
-        if 'stdout' in p:
-            _INPUT_BUFFER_BG = p['stdout']
-        else:
-            _INPUT_BUFFER_BG = '#FDFFD3' # Nice yellow
-
-        if 'stderr' in p:
-            _ERROR_BG = p['stderr']
-        else:
-            _ERROR_BG = '#FFF1F1' # Nice red
-
         # Marker for complete buffer.
         self.MarkerDefine(_COMPLETE_BUFFER_MARKER, stc.STC_MARK_BACKGROUND,
-                                background = _COMPLETE_BUFFER_BG)
+                                background=p['trace'])
 
         # Marker for current input buffer.
         self.MarkerDefine(_INPUT_MARKER, stc.STC_MARK_BACKGROUND,
-                                background = _INPUT_BUFFER_BG)
+                                background=p['stdout'])
         # Marker for tracebacks.
         self.MarkerDefine(_ERROR_MARKER, stc.STC_MARK_BACKGROUND,
-                                background = _ERROR_BG)
+                                background=p['stderr'])
 
         self.SetEOLMode(stc.STC_EOL_LF)
 
@@ -326,10 +332,7 b' class ConsoleWidget(editwindow.EditWindow):'
         self.SetWrapMode(stc.STC_WRAP_WORD)
         self.SetBufferedDraw(True)
 
-        if 'antialiasing' in p:
-            self.SetUseAntiAliasing(p['antialiasing'])            
-        else:        
-            self.SetUseAntiAliasing(True)
+        self.SetUseAntiAliasing(p['antialiasing'])
 
         self.SetLayoutCache(stc.STC_CACHE_PAGE)
         self.SetUndoCollection(False)
@@ -357,15 +360,9 b' class ConsoleWidget(editwindow.EditWindow):'
 
         # styles
         
-        if 'carret_color' in p:
-            self.SetCaretForeground(p['carret_color'])
-        else:
-            self.SetCaretForeground('BLACK')
+        self.SetCaretForeground(p['carret_color'])
         
-        if 'background_color' in p:
-            background_color = p['background_color']
-        else:
-            background_color = 'WHITE'            
+        background_color = p['background_color']
             
         if 'default' in p:
             if 'back' not in p['default']:
@@ -383,70 +380,42 b' class ConsoleWidget(editwindow.EditWindow):'
                                background_color,
                                self.faces['size'], self.faces['mono']))
         
-        #all styles = default one        
         self.StyleClearAll()
         
         # XXX: two lines below are usefull if not using the lexer        
         #for style in self.ANSI_STYLES.values():
         #    self.StyleSetSpec(style[0], "bold,fore:%s" % style[1])        
 
-        #prompt definition
-        if 'prompt_in1' in p:
-            self.prompt_in1 = p['prompt_in1']
-        else:
-            self.prompt_in1 = \
-            '\n\x01\x1b[0;34m\x02In [\x01\x1b[1;34m\x02$number\x01\x1b[0;34m\x02]: \x01\x1b[0m\x02'
-
-        if 'prompt_out' in p:
-            self.prompt_out = p['prompt_out']
-        else:
-            self.prompt_out = \
-            '\x01\x1b[0;31m\x02Out[\x01\x1b[1;31m\x02$number\x01\x1b[0;31m\x02]: \x01\x1b[0m\x02'
+        # prompt definition
+        self.prompt_in1 = p['prompt_in1']
+        self.prompt_out = p['prompt_out']
 
         self.output_prompt_template = string.Template(self.prompt_out)
         self.input_prompt_template = string.Template(self.prompt_in1)
 
-        if 'stdout' in p:
-            self.StyleSetSpec(_STDOUT_STYLE, p['stdout'])
-        if 'stderr' in p:
-            self.StyleSetSpec(_STDERR_STYLE, p['stderr'])
-        if 'trace' in p:
-            self.StyleSetSpec(_TRACE_STYLE, p['trace'])
-        if 'bracegood' in p:
-            self.StyleSetSpec(stc.STC_STYLE_BRACELIGHT, p['bracegood'])
-        if 'bracebad' in p:
-            self.StyleSetSpec(stc.STC_STYLE_BRACEBAD, p['bracebad'])
-        if 'comment' in p:
-            self.StyleSetSpec(stc.STC_P_COMMENTLINE, p['comment'])
-        if 'number' in p:
-            self.StyleSetSpec(stc.STC_P_NUMBER, p['number'])
-        if 'string' in p:
-            self.StyleSetSpec(stc.STC_P_STRING, p['string'])
-        if 'char' in p:
-            self.StyleSetSpec(stc.STC_P_CHARACTER, p['char'])
-        if 'keyword' in p:
-            self.StyleSetSpec(stc.STC_P_WORD, p['keyword'])
-        if 'keyword' in p:
-            self.StyleSetSpec(stc.STC_P_WORD2, p['keyword'])
-        if 'triple' in p:
-            self.StyleSetSpec(stc.STC_P_TRIPLE, p['triple'])
-        if 'tripledouble' in p:
-            self.StyleSetSpec(stc.STC_P_TRIPLEDOUBLE, p['tripledouble'])
-        if 'class' in p:
-            self.StyleSetSpec(stc.STC_P_CLASSNAME, p['class'])
-        if 'def' in p:
-            self.StyleSetSpec(stc.STC_P_DEFNAME, p['def'])
-        if 'operator' in p:
-            self.StyleSetSpec(stc.STC_P_OPERATOR, p['operator'])
-        if 'comment' in p:
-            self.StyleSetSpec(stc.STC_P_COMMENTBLOCK, p['comment'])
-
-        if 'edge_column' in p:
-            edge_column = p['edge_column']
-            if edge_column is not None and edge_column > 0:
-                #we add a vertical line to console widget
-                self.SetEdgeMode(stc.STC_EDGE_LINE)
-                self.SetEdgeColumn(88)
+        self.StyleSetSpec(_STDOUT_STYLE, p['stdout'])
+        self.StyleSetSpec(_STDERR_STYLE, p['stderr'])
+        self.StyleSetSpec(_TRACE_STYLE, p['trace'])
+        self.StyleSetSpec(stc.STC_STYLE_BRACELIGHT, p['bracegood'])
+        self.StyleSetSpec(stc.STC_STYLE_BRACEBAD, p['bracebad'])
+        self.StyleSetSpec(stc.STC_P_COMMENTLINE, p['comment'])
+        self.StyleSetSpec(stc.STC_P_NUMBER, p['number'])
+        self.StyleSetSpec(stc.STC_P_STRING, p['string'])
+        self.StyleSetSpec(stc.STC_P_CHARACTER, p['char'])
+        self.StyleSetSpec(stc.STC_P_WORD, p['keyword'])
+        self.StyleSetSpec(stc.STC_P_WORD2, p['keyword'])
+        self.StyleSetSpec(stc.STC_P_TRIPLE, p['triple'])
+        self.StyleSetSpec(stc.STC_P_TRIPLEDOUBLE, p['tripledouble'])
+        self.StyleSetSpec(stc.STC_P_CLASSNAME, p['class'])
+        self.StyleSetSpec(stc.STC_P_DEFNAME, p['def'])
+        self.StyleSetSpec(stc.STC_P_OPERATOR, p['operator'])
+        self.StyleSetSpec(stc.STC_P_COMMENTBLOCK, p['comment'])
+
+        edge_column = p['edge_column']
+        if edge_column is not None and edge_column > 0:
+            #we add a vertical line to console widget
+            self.SetEdgeMode(stc.STC_EDGE_LINE)
+            self.SetEdgeColumn(edge_column)
  
  
     #--------------------------------------------------------------------------

IPython/frontend/wx/wx_frontend.py

@@ -32,7 +32,7 b' import wx'
 from wx import stc
 
 # Ipython-specific imports.
-from IPython.frontend._process import PipedProcess
+from IPython.frontend.process import PipedProcess
 from console_widget import ConsoleWidget, _COMPLETE_BUFFER_MARKER, \
     _ERROR_MARKER, _INPUT_MARKER
 from IPython.frontend.prefilterfrontend import PrefilterFrontEnd
@@ -507,8 +507,9 b' class WxController(ConsoleWidget, PrefilterFrontEnd):'
         new_lines = []
         if self._input_state == 'readline':
             position = self.GetCurrentPos()
+            continuation_prompt = self.continuation_prompt()[:-1]
             for line in self.input_buffer.split('\n'):
-                if not line == self.continuation_prompt()[:-1]:
+                if not line == continuation_prompt:
                     new_lines.append(line)
             self.input_buffer = '\n'.join(new_lines)
             self.GotoPos(position)
@@ -528,9 +529,11 b' class WxController(ConsoleWidget, PrefilterFrontEnd):'
         # input_buffer filters this out.
         if sys.platform == 'win32':
             self.input_buffer = self.input_buffer
+        old_prompt_num = self.current_prompt_pos
         has_executed = PrefilterFrontEnd._on_enter(self, 
                                             new_line_pos=new_line_pos)
-        if not has_executed:
+        if old_prompt_num == self.current_prompt_pos:
+            # No execution has happened 
             self.GotoPos(self.GetLineEndPosition(current_line_num + 1))
         return has_executed
 

setupbase.py

@@ -109,7 +109,7 b' def find_packages():'
     add_package(packages, 'gui')
     add_package(packages, 'gui.wx')
     add_package(packages, 'frontend', tests=True)
-    add_package(packages, 'frontend._process')
+    add_package(packages, 'frontend.process')
     add_package(packages, 'frontend.wx')
     add_package(packages, 'frontend.cocoa', tests=True)
     add_package(packages, 'kernel', config=True, tests=True, scripts=True)