Handle underscore escaping/unescaping of the column titles

under the new packet list

svn path=/trunk/; revision=31649

1 files changed, 56 insertions, 0 deletions

diff --git a/epan/column.c b/epan/column.c
index 164855aee4..b944b227c7 100644
--- a/epan/column.c
+++ b/epan/column.c
@@ -727,3 +727,59 @@ build_column_format_array(column_info *cinfo, gint num_cols, gboolean reset_fenc
     }
   }
 }
+
+/*
+ * This function takes a string and copies it, inserting an underscore before
+ * every underscore in it.
+ */
+gchar*
+g_strdup_escape_underscore (const gchar *str)
+{
+	gchar *p, *q, *new_str;
+
+	if(!str)
+		return NULL;
+
+	p = (gchar *)str;
+	/* Worst case: A string that is full of underscores */
+	q = new_str = g_malloc (strlen(str) * 2 + 1);
+
+	while(*p != 0)
+	{
+		if(*p == '_')
+			*q++ = '_';
+
+		*q++ = *p++;
+	}
+	*q++ = '\0';
+
+	return new_str;
+}
+
+gchar*
+g_strdup_unescape_underscore (const gchar *str)
+{
+	gchar *p, *q, *new_str;
+
+	if(!str)
+		return NULL;
+
+	p = (gchar *)str;
+	/* Worst case: A string that contains no underscores */
+	q = new_str = g_malloc (strlen(str) + 1);
+
+	while(*p != 0)
+	{
+		if(*p == '_')
+		{
+			*q++ = '_';
+			p += 2;
+			continue;
+		}
+
+		*q++ = *p++;
+	}
+	*q++ = '\0';
+
+	return new_str;
+}