Update text.dm

code/__HELPERS/text.dm

@@ -53,6 +53,36 @@
 /proc/sanitize(t,list/repl_chars = null)
 	return html_encode(sanitize_simple(t,repl_chars))
 
+//Used for preprocessing entered text
+/proc/sanitize_rp(var/input, var/max_length = MAX_MESSAGE_LEN, var/encode = 1, var/trim = 1, var/extra = 1)
+	if(!input)
+		return
+
+	if(max_length)
+		input = copytext(input,1,max_length)
+
+	if(extra)
+		var/temp_input = replace_characters(input, list("\n"="  ","\t"=" "))//one character is replaced by two
+		if(length_char(input) < (length_char(temp_input) - 12)) //12 is the number of linebreaks allowed per message
+			input = replace_characters(temp_input,list("  "=" "))//replace again, this time the double spaces with single ones
+
+	if(encode)
+		// The below \ escapes have a space inserted to attempt to enable Travis auto-checking of span class usage. Please do not remove the space.
+		//In addition to processing html, html_encode removes byond formatting codes like "\ red", "\ i" and other.
+		//It is important to avoid double-encode text, it can "break" quotes and some other characters.
+		//Also, keep in mind that escaped characters don't work in the interface (window titles, lower left corner of the main window, etc.)
+		input = html_encode(input)
+	else
+		//If not need encode text, simply remove < and >
+		//note: we can also remove here byond formatting codes: 0xFF + next byte
+		input = replace_characters(input, list("<"=" ", ">"=" "))
+
+	if(trim)
+		//Maybe, we need trim text twice? Here and before copytext?
+		input = trim(input)
+
+	return input
+
 //Runs sanitize and strip_html_simple
 //I believe strip_html_simple() is required to run first to prevent '<' from displaying as '&lt;' after sanitize() calls byond's html_encode()
 /proc/strip_html(t,limit=MAX_MESSAGE_LEN)