From f2246dfb343bea19beb176fb2cc534f85513b2eb Mon Sep 17 00:00:00 2001
From: Kurtis Rader <krader@skepticism.us>
Date: Thu, 21 Jan 2016 19:56:39 -0800
Subject: reduce number of Unicode private-use characters

This narrows the range of Unicode codepoints fish reserves for its own
use from U+E000 thru U+F8FE (6399 codepoints) to U+F600 thru U+F73F (320
codepoints). This is still not ideal since fish shouldn't be using any
Unicode private-use codepoints but it's a step in the right direction.

This partially addresses issue #2684.
---
 doc_src/faq.hdr | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'doc_src')

diff --git a/doc_src/faq.hdr b/doc_src/faq.hdr
index 5ec12552..abbedb8b 100644
--- a/doc_src/faq.hdr
+++ b/doc_src/faq.hdr
@@ -215,6 +215,11 @@ cd /usr/local/bin
 rm -f fish fish_indent
 \endfish
 
+<hr>
+\section faq-reserved-chars Unicode private-use characters reserved by fish
+
+Fish reserves the <a href="http://www.unicode.org/faq/private_use.html">Unicode private-use character range</a> from U+F600 thru U+F73F for internal use. Any attempt to feed characters in that range to fish will result in them being replaced by the Unicode "replacement character" U+FFFD. This includes both interactive input as well as any file read by fish (but not programs run by fish).
+
 \htmlonly[block]
 </div>
 \endhtmlonly
-- 
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