From: nion <nion@e385b8ad-14ed-0310-8656-cc95a2468c6d>
Date: Mon, 23 May 2005 18:59:50 +0000 (+0000)
Subject: Nico Golde:
X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=commitdiff_plain;h=2b6a8b2b48fc8427a9d0df8222b61ccdeb9e9ae2

Nico Golde:
- deleted BEWARE and moved content to devel-notes.txt


git-svn-id: svn://svn.berlios.de/mutt-ng/trunk@301 e385b8ad-14ed-0310-8656-cc95a2468c6d
---

diff --git a/doc/devel-notes.txt b/doc/devel-notes.txt
index 3cfcfc9..51b4212 100644
--- a/doc/devel-notes.txt
+++ b/doc/devel-notes.txt
@@ -178,3 +178,19 @@ similar to [ntg]roff:
    This is used to protect indentations in tables.
 
 Do _not_ use any other SGML or nroff formatting instructions here!
+
+
+String comparison
+-----------------
+
+A word of warning about string comparisons: Since Mutt-ng may run in a
+huge variety of locales, case-insensitive string comparisons and
+case conversions may be dangerous.  For instance, in iso-8859-9,
+tolower('I') is DIFFERENT from 'i' - it's indeed the Turkish dotless
+lowercase i.
+
+For this reason, always use the ascii_* functions defined in ascii.h
+and implemented in ascii.c when comparing or handling strings which
+are defined as us-ascii.  This concerns lots of text-based
+protocols, message header tags, character set names, domain names,
+e-mail addresses, etc.