-

cool-RR · cool-RR · commit 92b7e60106fc · 2014-02-04T12:32:16.000+02:00
diff --git a/source_py3/python_toolbox/string_tools/__init__.py b/source_py3/python_toolbox/string_tools/__init__.py
@@ -4,4 +4,4 @@
 '''Defines string-related tools.'''
 
 from .string_tools import docstring_trim, get_n_identical_edge_characters
-from . import conversions
+from . import case_conversions
diff --git a/source_py3/python_toolbox/string_tools/case_conversions.py b/source_py3/python_toolbox/string_tools/case_conversions.py
@@ -0,0 +1,71 @@
+# Copyright 2009-2014 Ram Rachum.
+# This program is distributed under the MIT license.
+
+'''Defines functions for converting between different string conventions.'''
+
+import sys
+import re
+
+
+def camelcase_to_spacecase(s):
+    '''
+    Convert a string from camelcase to spacecase.
+    
+    Example: camelcase_to_underscore('HelloWorld') == 'Hello world'
+    '''
+    if s == '': return s
+    process_character = lambda c: (' ' + c.lower()) if c.isupper() else c
+    return s[0] + ''.join(process_character(c) for c in s[1:])
+
+
+def camel_case_to_lower_case(s):
+    '''
+    Convert a string from camel-case to lower-case.
+    
+    Example: 
+    
+        camel_case_to_lower_case('HelloWorld') == 'hello_world'
+        
+    '''
+    return re.sub('(((?<=[a-z])[A-Z])|([A-Z](?![A-Z]|$)))', '_\\1', s). \
+           lower().strip('_')
+
+
+def lower_case_to_camel_case(s):
+    '''
+    Convert a string from lower-case to camel-case.
+    
+    Example: 
+    
+        camel_case_to_lower_case('hello_world') == 'HelloWorld'
+        
+    '''
+    s = s.capitalize()
+    while '_' in s:
+        head, tail = s.split('_', 1)
+        s = head + tail.capitalize()
+    return s
+
+
+def camel_case_to_upper_case(s):
+    '''
+    Convert a string from camel-case to upper-case.
+    
+    Example: 
+    
+        camel_case_to_lower_case('HelloWorld') == 'HELLO_WORLD'
+        
+    '''
+    return camel_case_to_lower_case(s).upper()
+
+
+def upper_case_to_camel_case(s):
+    '''
+    Convert a string from upper-case to camel-case.
+    
+    Example: 
+    
+        camel_case_to_lower_case('HELLO_WORLD') == 'HelloWorld'
+        
+    '''
+    return lower_case_to_camel_case(s.lower())
diff --git a/source_py3/python_toolbox/string_tools/conversions.py b/source_py3/python_toolbox/string_tools/conversions.py
diff --git a/source_py3/python_toolbox/string_tools/string_tools.py b/source_py3/python_toolbox/string_tools/string_tools.py
@@ -58,4 +58,6 @@ def get_n_identical_edge_characters(string, character=None, head=True):
         if c != character:
             return i
     else:
-        return len(string)
+        return len(string)
+    
+
diff --git a/source_py3/test_python_toolbox/test_string_tools/test_case_conversions.py b/source_py3/test_python_toolbox/test_string_tools/test_case_conversions.py
@@ -0,0 +1,17 @@
+# Copyright 2009-2014 Ram Rachum.
+# This program is distributed under the MIT license.
+
+from python_toolbox.string_tools import case_conversions
+
+
+def test():
+    assert case_conversions.camelcase_to_spacecase('HelloWorld') == \
+                                                                  'Hello world'
+    assert case_conversions.camel_case_to_lower_case('HelloWorld') == \
+                                                                  'hello_world'
+    assert case_conversions.lower_case_to_camel_case('hello_world') == \
+                                                                   'HelloWorld'
+    assert case_conversions.camel_case_to_upper_case('HelloWorld') == \
+                                                                  'HELLO_WORLD'
+    assert case_conversions.upper_case_to_camel_case('HELLO_WORLD') == \
+                                                                   'HelloWorld'
diff --git a/source_py3/test_python_toolbox/test_string_tools/test_get_n_identical_edge_characters - Copy.py b/source_py3/test_python_toolbox/test_string_tools/test_get_n_identical_edge_characters - Copy.py
