From 400520daa42b5d0eb907a8843341d5588d429da5 Mon Sep 17 00:00:00 2001
From: Thomas Goyne <plorkyeran@aegisub.org>
Date: Tue, 26 Jun 2012 01:50:41 +0000
Subject: [PATCH] Fix handling of  \N, \n and \h in the fonts collector

Originally committed to SVN as r6922.
---
 aegisub/src/font_file_lister.cpp | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/aegisub/src/font_file_lister.cpp b/aegisub/src/font_file_lister.cpp
index 706e2792b..98a1856e2 100644
--- a/aegisub/src/font_file_lister.cpp
+++ b/aegisub/src/font_file_lister.cpp
@@ -86,8 +86,19 @@ void FontCollector::ProcessDialogueLine(AssDialogue *line, int index) {
 			if (overriden)
 				used_styles[style].lines.insert(index);
 			std::set<wxUniChar>& chars = used_styles[style].chars;
-			for (size_t j = 0; j < text.size(); ++j)
-				chars.insert(text[j]);
+			for (wxString::const_iterator it = text.begin(); it != text.end(); ++it) {
+				wxUniChar cur = *it;
+				if (cur == L'\\' && it + 1 != text.end()) {
+					wxUniChar next = *++it;
+					if (next == 'N' || next == 'n')
+						continue;
+					if (next == 'h')
+						cur = 0xA0;
+					else
+						--it;
+				}
+				chars.insert(cur);
+			}
 		}
 		// Do nothing with drawing blocks
 	}