--- lbbs/src/str_process.c	2025/06/13 10:52:07	1.13
+++ lbbs/src/str_process.c	2025/06/21 02:15:18	1.18
@@ -14,13 +14,13 @@
  *                                                                         *
  ***************************************************************************/
 
-#include "str_process.h"
 #include "common.h"
 #include "log.h"
+#include "str_process.h"
 #include <stdio.h>
 #include <string.h>
 
-int split_line(const char *buffer, int max_display_len, int *p_eol, int *p_display_len)
+int split_line(const char *buffer, int max_display_len, int *p_eol, int *p_display_len, int skip_ctrl_seq)
 {
 	int i;
 	*p_eol = 0;
@@ -36,7 +36,7 @@ int split_line(const char *buffer, int m
 			continue;
 		}
 
-		if (c == '\033' && buffer[i + 1] == '[') // Skip control sequence
+		if (skip_ctrl_seq && c == '\033' && buffer[i + 1] == '[') // Skip control sequence
 		{
 			i += 2;
 			while (buffer[i] != '\0' && buffer[i] != 'm')
@@ -63,7 +63,7 @@ int split_line(const char *buffer, int m
 			}
 			(*p_display_len)++;
 
-			 // \n is regarded as 1 character wide in terminal editor, which is different from Web version
+			// \n is regarded as 1 character wide in terminal editor, which is different from Web version
 			if (c == '\n')
 			{
 				i++;
@@ -76,7 +76,7 @@ int split_line(const char *buffer, int m
 	return i;
 }
 
-long split_data_lines(const char *p_buf, int max_display_len, long *p_line_offsets, long line_offsets_count)
+long split_data_lines(const char *p_buf, int max_display_len, long *p_line_offsets, long line_offsets_count, int skip_ctrl_seq)
 {
 	int line_cnt = 0;
 	int len;
@@ -87,12 +87,12 @@ long split_data_lines(const char *p_buf,
 
 	do
 	{
-		len = split_line(p_buf, max_display_len, &end_of_line, &display_len);
+		len = split_line(p_buf, max_display_len, &end_of_line, &display_len, skip_ctrl_seq);
 
 		// Exceed max_line_cnt
 		if (line_cnt + 1 >= line_offsets_count)
 		{
-			log_error("Line count %d reaches limit %d\n", line_cnt + 1, line_offsets_count);
+			// log_error("Line count %d reaches limit %d\n", line_cnt + 1, line_offsets_count);
 			return line_cnt;
 		}
 
@@ -103,3 +103,34 @@ long split_data_lines(const char *p_buf,
 
 	return line_cnt;
 }
+
+int str_filter(char *buffer, int skip_ctrl_seq)
+{
+	int i;
+	int j;
+
+	for (i = 0, j = 0; buffer[i] != '\0'; i++)
+	{
+		if (buffer[i] == '\r' || buffer[i] == '\7') // skip
+		{
+			continue;
+		}
+
+		if (skip_ctrl_seq && 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;
+}