--- lbbs/src/str_process.c	2025/06/02 15:01:55	1.11
+++ lbbs/src/str_process.c	2025/06/14 10:03:32	1.15
@@ -36,13 +36,6 @@ int split_line(const char *buffer, int m
 			continue;
 		}
 
-		if (c == '\n')
-		{
-			i++;
-			*p_eol = 1;
-			break;
-		}
-
 		if (c == '\033' && buffer[i + 1] == '[') // Skip control sequence
 		{
 			i += 2;
@@ -69,6 +62,14 @@ int split_line(const char *buffer, int m
 				break;
 			}
 			(*p_display_len)++;
+
+			// \n is regarded as 1 character wide in terminal editor, which is different from Web version
+			if (c == '\n')
+			{
+				i++;
+				*p_eol = 1;
+				break;
+			}
 		}
 	}
 
@@ -78,21 +79,16 @@ int split_line(const char *buffer, int m
 long split_data_lines(const char *p_buf, int max_display_len, long *p_line_offsets, long line_offsets_count)
 {
 	int line_cnt = 0;
-	int len = 0;
+	int len;
 	int end_of_line = 0;
 	int display_len = 0;
 
 	p_line_offsets[line_cnt] = 0L;
 
-	while (1)
+	do
 	{
 		len = split_line(p_buf, max_display_len, &end_of_line, &display_len);
 
-		if (len == 0) // EOF
-		{
-			break;
-		}
-
 		// Exceed max_line_cnt
 		if (line_cnt + 1 >= line_offsets_count)
 		{
@@ -103,7 +99,38 @@ long split_data_lines(const char *p_buf,
 		p_line_offsets[line_cnt + 1] = p_line_offsets[line_cnt] + len;
 		line_cnt++;
 		p_buf += len;
-	}
+	} while (p_buf[0] != '\0');
 
 	return line_cnt;
 }
+
+int ctrl_seq_filter(char *buffer)
+{
+	int i;
+	int j;
+
+	for (i = 0, j = 0; buffer[i] != '\0'; i++)
+	{
+		if (buffer[i] == '\r' || buffer[i] == '\7') // skip
+		{
+			continue;
+		}
+
+		if (buffer[i] == '\033' && buffer[i + 1] == '[') // Skip control sequence
+		{
+			i += 2;
+			while (buffer[i] != '\0' && buffer[i] != 'm')
+			{
+				i++;
+			}
+			continue;
+		}
+
+		buffer[j] = buffer[i];
+		j++;
+	}
+
+	buffer[j] = '\0';
+
+	return j;
+}