From aea19a819e4293b8f3ecb56f32a4bb023153c2ee Mon Sep 17 00:00:00 2001
From: Gaetan Delannay <gaetan.delannay@gmail.com>
Date: Tue, 23 Nov 2010 17:25:00 +0100
Subject: [PATCH] Finalized implementation of attribute String.transform.

---
 gen/__init__.py                    | 30 ++++++++++++++++++++++++++++++
 gen/plone25/skin/widgets/string.pt |  4 +++-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/gen/__init__.py b/gen/__init__.py
index 68aaf56..33a27e0 100644
--- a/gen/__init__.py
+++ b/gen/__init__.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 # ------------------------------------------------------------------------------
 import re, time, copy, sys, types, os, os.path
 from appy.shared.utils import Traceback
@@ -1170,6 +1171,35 @@ class String(Type):
             # Check that the value is among possible values
             if error: obj.translate('bad_select_value')
 
+    accents = {'é':'e','è':'e','ê':'e','ë':'e','à':'a','â':'a','ä':'a',
+               'ù':'u','û':'u','ü':'u','î':'i','ï':'i','ô':'o','ö':'o',
+               'ç':'c', 'Ç':'C',
+               'Ù':'U','Û':'U','Ü':'U','Î':'I','Ï':'I','Ô':'O','Ö':'O',
+               'É':'E','È':'E','Ê':'E','Ë':'E','À':'A','Â':'A','Ä':'A'}
+    def applyTransform(self, value):
+        '''Applies a transform as required by self.transform on single
+           value p_value.'''
+        if self.transform in ('uppercase', 'lowercase'):
+            # For those transforms, I will remove any accent, because
+            # (1) 'é'.upper() or 'Ê'.lower() has no effect;
+            # (2) most of the time, if the user wants to apply such effect, it
+            #     is for ease of data manipulation, so I guess without accent.
+            for c, n in self.accents.iteritems():
+                if c in value: value = value.replace(c, n)
+        # Apply the transform
+        if   self.transform == 'lowercase':  return value.lower()
+        elif self.transform == 'uppercase':  return value.upper()
+        elif self.transform == 'capitalize': return value.capitalize()
+        return value
+
+    def getStorableValue(self, value):
+        if not self.isEmptyValue(value) and (self.transform != 'none'):
+            if isinstance(value, basestring):
+                return self.applyTransform(value)
+            else:
+                return [self.applyTransform(v) for v in value]
+        return value
+
     def store(self, obj, value):
         if self.isMultiValued() and isinstance(value, basestring):
             value = [value]
diff --git a/gen/plone25/skin/widgets/string.pt b/gen/plone25/skin/widgets/string.pt
index b45a0de..673b737 100644
--- a/gen/plone25/skin/widgets/string.pt
+++ b/gen/plone25/skin/widgets/string.pt
@@ -43,12 +43,14 @@
   <tal:line condition="python: isOneLine and not isSelect">
     <input tal:attributes="id name; name name; size widget/width;
                            value python: test(inRequest, requestValue, value);
+                           style python: 'text-transform:%s' % widget['transform'];
                            type  python: (widget['format'] == 3) and 'password' or 'text'"/>
   </tal:line>
   <tal:textarea condition="python: fmt == 1">
     <textarea tal:attributes="id name; name name;
                               cols widget/width;
-                              rows widget/height;"
+                              rows widget/height;
+                              style python: 'text-transform:%s' % widget['transform'];"
               tal:content="python: test(inRequest, requestValue, value)">
     </textarea>
     <input type="hidden" value="text/plain" originalvalue="text/plain"