From 114406d021bf5de1ef34b16e0a0d22c8a83a900f Mon Sep 17 00:00:00 2001
From: "B.Greenham" <taros34@hotmail.com>
Date: Sat, 20 Mar 2010 12:39:39 -0400
Subject: [PATCH] Add strip_unprintable, a function that strips all unprintable
 characters from a string.

---
 include/inline/stringops.h | 44 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/include/inline/stringops.h b/include/inline/stringops.h
index 594109d..07f04db 100644
--- a/include/inline/stringops.h
+++ b/include/inline/stringops.h
@@ -77,4 +77,48 @@ strip_colour(char *string)
 	return string;
 }
 
+static inline char *
+strip_unprintable(char *string)
+{
+	char *c = string;
+	char *c2 = string;
+	char *last_non_space = NULL;
+
+	/* c is source, c2 is target */
+	for(; c && *c; c++)
+		switch (*c)
+		{
+		case 3:
+			if(isdigit(c[1]))
+			{
+				c++;
+				if(isdigit(c[1]))
+					c++;
+				if(c[1] == ',' && isdigit(c[2]))
+				{
+					c += 2;
+					if(isdigit(c[1]))
+						c++;
+				}
+			}
+			break;
+		case 32:
+			*c2++ = *c;
+			break;
+		default:
+			if (*c < 32)
+				break;
+			*c2++ = *c;
+			last_non_space = c2;
+			break;
+		}
+
+	*c2 = '\0';
+
+	if(last_non_space)
+		*last_non_space = '\0';
+
+	return string;
+}
+
 #endif