Re: umlaut

Thanks a lot for your replies.

The following code does the job for me ...

From 8a110f8358f545fae0a9d0c8d69b496fd0e35cdf Mon Sep 17 00:00:00 2001
From: Thomas Rega <mail@thoreg.org>
Date: Mon, 29 Nov 2010 16:51:01 +0100
Subject: [PATCH] custom template filter to convert umlauts

This simple custom template filter converts German umlauts from unicode to
ascii. 99,99 percent of this code are stolen from:
http://djangosnippets.org/snippets/588/
---
plain_site/templatetags/unicode_to_ascii.py | 75 +++++++++++++++++++++++++++
1 files changed, 75 insertions(+), 0 deletions(-)
create mode 100644 plain_site/templatetags/unicode_to_ascii.py

diff --git a/plain_site/templatetags/unicode_to_ascii.py
b/plain_site/templatetags/unicode_to_ascii.py
new file mode 100644
index 0000000..730ab52
--- /dev/null
+++ b/plain_site/templatetags/unicode_to_ascii.py
@@ -0,0 +1,75 @@
+
+import unicodedata, sys
+
+from django import template
+from django.template.defaultfilters import stringfilter
+
+register = template.Library()
+
+# Translation dictionary. Translation entries are added to this
+# dictionary as needed.
+
+CHAR_REPLACEMENT = {
+
+ 0xc4: u"&Auml;",
+ 0xd6: u"&Ouml;",
+ 0xdc: u"&Ouml;",
+
+ 0xdf: u"&szlig;",
+
+ 0xe4: u"&auml;",
+ 0xf6: u"&ouml;",
+ 0xfc: u"&uuml;",
+
+ 0x2018: u"'", # LEFT SINGLE QUOTATION MARK
+ 0x2019: u"'", # RIGHT SINGLE QUOTATION MARK
+ 0x201c: u'"', # LEFT DOUBLE QUOTATION MARK
+ 0x201d: u'"', # RIGHT DOUBLE QUOTATION MARK
+}
+
+
+class unaccented_map(dict):
+ """
+ Maps a unicode character code (the key) to a replacement code
+ (either a character code or a unicode string).
+ """
+
+ def mapchar(self, key):
+ ch = self.get(key)
+ if ch is not None:
+ return ch
+
+ de = unicodedata.decomposition(unichr(key))
+ if key not in CHAR_REPLACEMENT and de:
+ try:
+ ch = int(de.split(None, 1)[0], 16)
+ except (IndexError, ValueError):
+ ch = key
+ else:
+ ch = CHAR_REPLACEMENT.get(key, key)
+ self[key] = ch
+ return ch
+
+ if sys.version >= "2.5":
+ # use __missing__ where available
+ __missing__ = mapchar
+ else:
+ # otherwise, use standard __getitem__ hook (this is slower,
+ # since it's called for each character)
+ __getitem__ = mapchar
+
+@register.filter(name='unicode_to_ascii')
+@stringfilter
+def unicode_to_ascii(unicodestring):
+ """
+ Convert a unicode string into an ASCII representation, converting non-ascii
+ characters into close approximations where possible.
+
+ Special thanks to http://effbot.org/zone/unicode-convert.htm
+
+ @param Unicode String unicodestring The string to translate
+ @result String
+ """
+ charmap = unaccented_map()
+ return unicodestring.translate(charmap).encode("ascii", "ignore")
+
--
1.5.6.5

2010/11/29 David De La Harpe Golden <david.delaharpe.golden@ichec.ie>:
> On 29/11/10 13:20, Thomas Rega wrote:
>> Hi,
>>
>> is there a recommended way to deal with German 'umlauts' (like ü.ö.etc.)
>> I was lookingfor some kind of template filter but without success :(
>> The data is stored as utf-8 format. What I am looking for is an
>> automatic transformation into '&uuml;, &ouml; etc.
>> Is such a template filter the right approach?
>>
>
> Well, I suppose you could, but just in case do bear in mind most stuff
> these days is after all utf-8 capable.  I just wouldn't bother mapping
> to html entities unless you know you need something else, really.
> Django in fact defaults to utf-8 [1]
>
> [1] http://docs.djangoproject.com/en/dev/ref/settings/#default-charset
>
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