void cmd_resolve_backspace(struct cmd_vty *vty)
{
int i, size;
// no more to delete
if (vty->cur_pos <= 0)
return;
size = vty->used_len - vty->cur_pos;
CMD_DBGASSERT(size >= 0, "cmd_resolve_backspace");
// delete char
vty->cur_pos--;
vty->used_len--;
cmd_back_one();
// print left chars
memcpy(&vty->buffer[vty->cur_pos], &vty->buffer[vty->cur_pos + 1], size);
vty->buffer[vty->used_len] = '\0';
for (i = 0; i < size; i ++)
cmd_put_one(vty->buffer[vty->cur_pos + i]);
cmd_put_one(' ');
for (i = 0; i < size + 1; i++)
cmd_back_one();
}
void cmd_resolve_insert(struct cmd_vty *vty)
{
int i, size;
// no more to insert
if (vty->used_len >= vty->buf_len)
return;
size = vty->used_len - vty->cur_pos;
debug_print_ex(CMD_DEBUG_TYPE_INFO,"\r\nused_len=%d, pos=%d\r\n",vty->used_len, vty->cur_pos);
CMD_DBGASSERT(size >= 0, "cmd_resolve_insert");
memcpy(&vty->buffer[vty->cur_pos + 1], &vty->buffer[vty->cur_pos], size);
vty->buffer[vty->cur_pos] = vty->c;
#if 0
/* BEGIN: del by weizengke, 2013/11/17 */
/* BEGIN: Added by weizengke, 2013/10/4 PN:bug for continue tab */
vty->buffer[vty->cur_pos + 1] = '\0';
/* END: Added by weizengke, 2013/10/4 PN:None */
/* END: del by weizengke, 2013/11/17 */
#endif
// print left chars, then back size
for (i = 0; i < size + 1; i++)
cmd_put_one(vty->buffer[vty->cur_pos + i]);
for (i = 0; i < size; i++)
cmd_back_one();
vty->cur_pos++;
vty->used_len++;
}
/*****************************************************************************
函 数 名 : cmd_resolve_delete
功能描述 : 适配Delete键，向前删除字符
输入参数 : struct cmd_vty *vty
输出参数 : 无
返 回 值 : void
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2013年11月17日
作 者 : weizengke
修改内容 : 新生成函数
*****************************************************************************/
void cmd_resolve_delete(struct cmd_vty *vty)
{
int i, size;
// no more to delete
if (vty->cur_pos >= vty->used_len)
return;
/* del the current char*/
printf(" \b");
size = vty->used_len - vty->cur_pos;
CMD_DBGASSERT(size >= 0, "cmd_resolve_delete");
memcpy(&vty->buffer[vty->cur_pos], &vty->buffer[vty->cur_pos + 1], size);
vty->buffer[vty->used_len - 1] = '\0';
/* output the right chars */
for (i = 0; i < size; i ++)
cmd_put_one(vty->buffer[vty->cur_pos + i]);
vty->used_len--;
/* back the cur_pos */
for (i = 0; i < size; i++)
cmd_back_one();
}
// handle in read buffer, including left, right, delete, insert
void cmd_resolve_left(struct cmd_vty *vty)
{
// already at leftmost, cannot move more
if (vty->cur_pos <= 0)
return;
// move left one step
vty->cur_pos--;
cmd_back_one();
}
/* Note: Added by weizengke, 2013/10 clear current line by cur-pos */
void cmd_clear_line(struct cmd_vty *vty)
{
int size = vty->used_len - vty->cur_pos;
CMD_DBGASSERT(size >= 0, "cmd_clear_line");
while (size--)
{
cmd_put_one(' ');
}
while (vty->used_len)
{
vty->used_len--;
cmd_back_one();
cmd_put_one(' ');
cmd_back_one();
}
memset(vty->buffer, 0, HISTORY_MAX_SIZE);
}
/* Note: Added by weizengke, 2013/10 output current command-buf */
void cmd_outcurrent()
{
int i;
if (NULL == vty)
{
return ;
}
cmd_outstring("%s", CMD_ENTER);
cmd_outprompt(vty->prompt);
cmd_outstring("%s", vty->buffer);
/* BEGIN: Added by weizengke, 2014/3/23 support delete word form cur_pos */
for (i = 0; i < strlen(vty->buffer) - vty->cur_pos; i++)
{
cmd_back_one();
}
/* END: Added by weizengke, 2014/3/23 */
}
/*****************************************************************************
函 数 名 : cmd_resolve_del_lastword
功能描述 : 适配CTRL_W键，快速删除最后一个命令字
输入参数 : struct cmd_vty *vty
输出参数 : 无
返 回 值 : void
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2013年11月17日
作 者 : weizengke
修改内容 : 新生成函数
*****************************************************************************/
void cmd_resolve_del_lastword(struct cmd_vty *vty)
{
int i, size;
// no more to delete
if (vty->cur_pos <= 0)
return;
cmd_delete_word_ctrl_W_ex(vty);
cmd_outstring("%s", CMD_ENTER);
cmd_outprompt(vty->prompt);
cmd_outstring("%s", vty->buffer);
/* BEGIN: Added by weizengke, 2014/3/23 support delete word form cur_pos*/
for (i = 0; i < strlen(vty->buffer) - vty->cur_pos; i++)
{
cmd_back_one();
}
/* END: Added by weizengke, 2014/3/23 */
}
