From 892f3cdd2c4d1b6aa9ec86547022d9f8194d6b80 Mon Sep 17 00:00:00 2001
From: Gilbert Gonzales <gilbert@lindenlab.com>
Date: Wed, 22 May 2013 06:26:54 -0400
Subject: CHUI-967: fix display of % escapes in chat

---
 indra/llcommon/llstring.cpp | 17 +++++++++++++++++
 indra/llcommon/llstring.h   |  1 +
 indra/llcommon/lluri.cpp    | 29 ++++++++++++++++++++++++-----
 indra/llui/lltextbase.cpp   |  6 +++---
 4 files changed, 45 insertions(+), 8 deletions(-)

diff --git a/indra/llcommon/llstring.cpp b/indra/llcommon/llstring.cpp
index 0c32679744..22c8681983 100755
--- a/indra/llcommon/llstring.cpp
+++ b/indra/llcommon/llstring.cpp
@@ -52,6 +52,23 @@ std::string ll_safe_string(const char* in, S32 maxlen)
 	return std::string();
 }
 
+bool is_char_hex(char hex)
+{
+	if((hex >= '0') && (hex <= '9'))
+	{
+		return true;
+	}
+	else if((hex >= 'a') && (hex <='f'))
+	{
+		return true;
+	}
+	else if((hex >= 'A') && (hex <='F'))
+	{
+		return true;
+	}
+	return false; // uh - oh, not hex any more...
+}
+
 U8 hex_as_nybble(char hex)
 {
 	if((hex >= '0') && (hex <= '9'))
diff --git a/indra/llcommon/llstring.h b/indra/llcommon/llstring.h
index 119efc7957..f9702868c8 100755
--- a/indra/llcommon/llstring.h
+++ b/indra/llcommon/llstring.h
@@ -470,6 +470,7 @@ inline std::string chop_tail_copy(
  * @brief This translates a nybble stored as a hex value from 0-f back
  * to a nybble in the low order bits of the return byte.
  */
+LL_COMMON_API bool is_char_hex(char hex);
 LL_COMMON_API U8 hex_as_nybble(char hex);
 
 /**
diff --git a/indra/llcommon/lluri.cpp b/indra/llcommon/lluri.cpp
index 21456a599b..37f5b3d6a3 100755
--- a/indra/llcommon/lluri.cpp
+++ b/indra/llcommon/lluri.cpp
@@ -129,11 +129,30 @@ std::string LLURI::unescape(const std::string& str)
 		{
 			++it;
 			if(it == end) break;
-			U8 c = hex_as_nybble(*it++);
-			c = c << 4;
-			if (it == end) break;
-			c |= hex_as_nybble(*it);
-			ostr.put((char)c);
+
+			if(is_char_hex(*it))
+			{
+				U8 c = hex_as_nybble(*it++);
+
+				c = c << 4;
+				if (it == end) break;
+
+				if(is_char_hex(*it))
+				{
+					c |= hex_as_nybble(*it);
+					ostr.put((char)c);
+				}
+				else
+				{
+					ostr.put((char)c);
+					ostr.put(*it);
+				}
+			}
+			else
+			{
+				ostr.put('%');
+				ostr.put(*it);
+			}
 		}
 		else
 		{
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index e70992129a..a45c4ced2e 100755
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -3206,14 +3206,14 @@ S32	LLNormalTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 lin
 	LLWString offsetString(text.c_str() + segment_offset + mStart);
 
 	if(getLength() < segment_offset + mStart)
-	{
-		llerrs << "getLength() < segment_offset + mStart\t getLength()\t" << getLength() << "\tsegment_offset:\t" 
+	{ 
+		llinfos << "getLength() < segment_offset + mStart\t getLength()\t" << getLength() << "\tsegment_offset:\t" 
 						<< segment_offset << "\tmStart:\t" << mStart << "\tsegments\t" << mEditor.mSegments.size() << "\tmax_chars\t" << max_chars << llendl;
 	}
 
 	if(offsetString.length() + 1 < max_chars)
 	{
-		llerrs << "offsetString.length() + 1 < max_chars\t max_chars:\t" << max_chars << "\toffsetString.length():\t" << offsetString.length()
+		llinfos << "offsetString.length() + 1 < max_chars\t max_chars:\t" << max_chars << "\toffsetString.length():\t" << offsetString.length() << " getLength() : "
 			<< getLength() << "\tsegment_offset:\t" << segment_offset << "\tmStart:\t" << mStart << "\tsegments\t" << mEditor.mSegments.size() << llendl;
 	}
 	
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