(svn r9012) -Fix/Feature (UTF8): When cutting strings into multiple lines also take into consideration whitespace characters of more than 1 byte length (eg IDEOGRAPHIC SPACE, IsWhitespace() function). When trimming such strings, account for multiple-byte long sequences so use *Utf8PrevChar(v) = '\0'.

-Codechange: Add a function Utf8TrimString() that properly trims a string to an UTF8 encoding seperation instead of somewhere in the wild (and use it in the chat area)

src/texteff.cpp

@@ -17,7 +17,7 @@
 #include "date.h"
 
 enum {
-	MAX_TEXTMESSAGE_LENGTH = 150,
+	MAX_TEXTMESSAGE_LENGTH = 200,
 	MAX_TEXT_MESSAGES      =  30,
 	MAX_CHAT_MESSAGES      =  10,
 	MAX_ANIMATED_TILES     = 256,
@@ -82,6 +82,9 @@ void CDECL AddTextMessage(uint16 color, uint8 duration, const char *message, ...
 	vsnprintf(buf, lengthof(buf), message, va);
 	va_end(va);
 
+
+	Utf8TrimString(buf, MAX_TEXTMESSAGE_LENGTH);
+
 	/* Force linebreaks for strings that are too long */
 	lines = GB(FormatStringLinebreaks(buf, _textmsg_box.width - 8), 0, 16) + 1;
 	if (lines >= MAX_CHAT_MESSAGES) return;