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fix down and then up key bug. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@313 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2010-01-18 13:44:19 +00:00
parent 02cffa3778
commit 612898fe8c
1 changed files with 15 additions and 10 deletions
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25
finsh/shell.c
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@ -13,6 +13,7 @@
* 2006-05-08 Bernard change finsh thread stack to 2048
* 2006-06-03 Bernard add support for skyeye
* 2006-09-24 Bernard remove the code related with hardware
* 2010-01-18 Bernard fix down then up key bug.
*/
#include <rtthread.h>
@ -22,7 +23,7 @@
/*
* Add by caoxl 2009-10-14
*
*
*/
#ifdef QEMU_CAOXL
#define memcpy(a,b,c) rt_memcpy(a,b,c)
@ -113,7 +114,7 @@ char *strdup(const char *s)
return tmp;
}
#endif
#if !defined(__CC_ARM) && !defined(__ICCARM__)
int isalpha( int ch )
{
@ -143,7 +144,7 @@ int atoi(const char* s)
int isprint(unsigned char ch)
{
return (unsigned int)(ch - ' ') < 127u - ' ';
}
}
#endif
#endif
@ -233,7 +234,7 @@ void finsh_thread_entry(void* parameter)
{
#ifdef FINSH_USING_HISTORY
/*
* handle up and down key
* handle up and down key
* up key : 0x1b 0x5b 0x41
* down key: 0x1b 0x5b 0x42
*/
@ -268,7 +269,7 @@ void finsh_thread_entry(void* parameter)
}
/* copy the history command */
memcpy(line, &finsh_cmd_history[current_history][0],
memcpy(line, &finsh_cmd_history[current_history][0],
FINSH_CMD_SIZE);
pos = strlen(line);
use_history = 1;
@ -280,16 +281,20 @@ void finsh_thread_entry(void* parameter)
current_history ++;
else
{
current_history = finsh_history_count - 1;
continue;
/* set to the end of history */
if (finsh_history_count != 0)
{
current_history = finsh_history_count - 1;
}
else continue;
}
memcpy(line, &finsh_cmd_history[current_history][0],
memcpy(line, &finsh_cmd_history[current_history][0],
FINSH_CMD_SIZE);
pos = strlen(line);
use_history = 1;
}
if (use_history)
{
rt_kprintf("\033[2K\r");
@ -354,7 +359,7 @@ void finsh_thread_entry(void* parameter)
int index;
for (index = 0; index < FINSH_HISTORY_LINES - 1; index ++)
{
memcpy(&finsh_cmd_history[index][0],
memcpy(&finsh_cmd_history[index][0],
&finsh_cmd_history[index + 1][0], FINSH_CMD_SIZE);
}
memset(&finsh_cmd_history[index][0], 0, FINSH_CMD_SIZE);