fix backspace issue and fix device read issue in shell.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@516 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong
parent
b4bcc7b50d
commit
cb713bc99c
358
finsh/shell.c
358
finsh/shell.c
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@ -14,6 +14,7 @@
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* 2006-06-03 Bernard add support for skyeye
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* 2006-09-24 Bernard remove the code related with hardware
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* 2010-01-18 Bernard fix down then up key bug.
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* 2010-03-19 Bernard fix backspace issue and fix device read in shell.
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*/
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#include <rtthread.h>
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@ -57,9 +58,7 @@ extern char rt_serial_getc(void);
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struct rt_thread finsh_thread;
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char finsh_thread_stack[2048];
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struct rt_semaphore uart_sem;
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#ifdef RT_USING_DEVICE
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rt_device_t finsh_device;
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#endif
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#ifdef FINSH_USING_HISTORY
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enum input_stat
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{
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@ -148,7 +147,6 @@ int isprint(unsigned char ch)
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#endif
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#endif
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#ifdef RT_USING_DEVICE
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static rt_err_t finsh_rx_ind(rt_device_t dev, rt_size_t size)
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{
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/* release semaphore to let finsh thread rx data */
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@ -178,12 +176,6 @@ void finsh_set_device(char* device_name)
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rt_kprintf("finsh: can not find device:%s\n", device_name);
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}
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}
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#else
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void finsh_notify()
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{
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rt_sem_release(&uart_sem);
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}
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#endif
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void finsh_auto_complete(char* prefix)
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{
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@ -192,12 +184,52 @@ void finsh_auto_complete(char* prefix)
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rt_kprintf("\n");
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list_prefix(prefix);
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rt_kprintf("finsh>>%s", prefix);
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}
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}
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void finsh_run_line(struct finsh_parser *parser, const char* line)
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{
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rt_kprintf("\n");
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finsh_parser_run(parser, (unsigned char*)line);
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/* compile node root */
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if (finsh_errno() == 0)
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{
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finsh_compiler_run(parser->root);
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}
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else
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{
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rt_kprintf("%s\n", finsh_error_string(finsh_errno()));
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}
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/* run virtual machine */
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if (finsh_errno() == 0)
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{
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char ch;
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finsh_vm_run();
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ch = (unsigned char)finsh_stack_bottom();
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if (ch > 0x20 && ch < 0x7e)
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{
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rt_kprintf("\t'%c', %d, 0x%08x\n",
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(unsigned char)finsh_stack_bottom(),
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(unsigned int)finsh_stack_bottom(),
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(unsigned int)finsh_stack_bottom());
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}
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else
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{
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rt_kprintf("\t%d, 0x%08x\n",
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(unsigned int)finsh_stack_bottom(),
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(unsigned int)finsh_stack_bottom());
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}
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}
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finsh_flush(parser);
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}
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void finsh_thread_entry(void* parameter)
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{
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struct finsh_parser parser;
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char line[256];
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char line[256], ch;
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int pos ;
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#ifdef FINSH_USING_HISTORY
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enum input_stat stat;
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@ -207,215 +239,165 @@ void finsh_thread_entry(void* parameter)
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stat = WAIT_NORMAL;
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current_history = 0;
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use_history = 0;
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memset(line, 0, sizeof(line));
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finsh_init(&parser);
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while (1)
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{
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rt_kprintf("finsh>>");
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if (rt_sem_take(&uart_sem, RT_WAITING_FOREVER) != RT_EOK) continue;
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memset(line, 0, sizeof(line));
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pos = 0;
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while (1)
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/* read one character from device */
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while (rt_device_read(finsh_device, 0, &ch, 1) == 1)
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{
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if (rt_sem_take(&uart_sem, -1) == RT_EOK)
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#ifdef FINSH_USING_HISTORY
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/*
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* handle up and down key
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* up key : 0x1b 0x5b 0x41
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* down key: 0x1b 0x5b 0x42
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*/
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if (ch == 0x1b)
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{
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/* read one character from serial */
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char ch;
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stat = WAIT_SPEC_KEY;
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continue;
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}
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#ifndef RT_USING_DEVICE
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ch = rt_serial_getc();
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if (ch != 0)
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#else
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rt_err_t rx_result;
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rx_result = rt_device_read(finsh_device, 0, &ch, 1);
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if (ch != 0 && rx_result == 1)
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#endif
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if ((stat == WAIT_SPEC_KEY) && (ch == 0x5b))
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{
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if (ch == 0x5b)
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{
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#ifdef FINSH_USING_HISTORY
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/*
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* handle up and down key
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* up key : 0x1b 0x5b 0x41
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* down key: 0x1b 0x5b 0x42
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*/
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if (ch == 0x1b)
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stat = WAIT_FUNC_KEY;
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continue;
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}
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stat = WAIT_NORMAL;
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}
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if (stat == WAIT_FUNC_KEY)
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{
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stat = WAIT_NORMAL;
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if (ch == 0x41) /* up key */
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{
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/* prev history */
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if (current_history > 0)current_history --;
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else
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{
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stat = WAIT_SPEC_KEY;
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current_history = 0;
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continue;
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}
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if ((stat == WAIT_SPEC_KEY) && (ch == 0x5b))
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/* copy the history command */
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memcpy(line, &finsh_cmd_history[current_history][0],
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FINSH_CMD_SIZE);
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pos = strlen(line);
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use_history = 1;
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}
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else if (ch == 0x42) /* down key */
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{
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/* next history */
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if (current_history < finsh_history_count - 1)
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current_history ++;
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else
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{
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if (ch == 0x5b)
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/* set to the end of history */
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if (finsh_history_count != 0)
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{
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stat = WAIT_FUNC_KEY;
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continue;
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current_history = finsh_history_count - 1;
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}
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stat = WAIT_NORMAL;
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else continue;
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}
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if (stat == WAIT_FUNC_KEY)
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{
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stat = WAIT_NORMAL;
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memcpy(line, &finsh_cmd_history[current_history][0],
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FINSH_CMD_SIZE);
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pos = strlen(line);
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use_history = 1;
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}
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if (ch == 0x41) /* up key */
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{
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/* prev history */
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if (current_history > 0)current_history --;
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else
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{
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current_history = 0;
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continue;
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}
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/* copy the history command */
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memcpy(line, &finsh_cmd_history[current_history][0],
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FINSH_CMD_SIZE);
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pos = strlen(line);
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use_history = 1;
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}
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else if (ch == 0x42) /* down key */
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{
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/* next history */
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if (current_history < finsh_history_count - 1)
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current_history ++;
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else
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{
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/* set to the end of history */
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if (finsh_history_count != 0)
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{
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current_history = finsh_history_count - 1;
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}
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else continue;
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}
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memcpy(line, &finsh_cmd_history[current_history][0],
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FINSH_CMD_SIZE);
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pos = strlen(line);
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use_history = 1;
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}
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if (use_history)
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{
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rt_kprintf("\033[2K\r");
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rt_kprintf("finsh>>%s", line);
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continue;
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}
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}
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#endif
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/*
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* handle tab key
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*/
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if (ch == '\t')
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{
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/* auto complete */
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finsh_auto_complete(&line[0]);
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/* re-calculate position */
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pos = strlen(line);
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continue;
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}
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/*
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* handle backspace key
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*/
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if (ch == 0x7f || ch == 0x08)
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{
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if (pos != 0)rt_kprintf("%c", ch);
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line[pos--] = 0;
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if (pos < 0) pos = 0;
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continue;
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}
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if (pos >= 256) /* it's a large line, discard it */
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pos = 0;
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line[pos] = ch;
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rt_kprintf("%c", line[pos]);
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/* if it's the end of line, break */
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if (line[pos] == 0xd || line[pos] == 0xa)
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{
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/* change to ';' and break */
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line[pos] = ';';
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break;
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}
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else use_history = 0; /* not "\n", it's a new command */
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pos ++;
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if (use_history)
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{
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rt_kprintf("\033[2K\r");
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rt_kprintf("finsh>>%s", line);
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continue;
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}
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}
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}
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#endif
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if (pos == 0)
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{
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rt_kprintf("\n");
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continue;
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}
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#ifdef FINSH_USING_HISTORY
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if (use_history == 0)
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{
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/* push history */
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if (finsh_history_count >= FINSH_HISTORY_LINES)
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/* handle tab key */
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if (ch == '\t')
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{
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/* move history */
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int index;
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for (index = 0; index < FINSH_HISTORY_LINES - 1; index ++)
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/* auto complete */
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finsh_auto_complete(&line[0]);
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/* re-calculate position */
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pos = strlen(line);
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continue;
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}
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/* handle backspace key */
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else if (ch == 0x7f || ch == 0x08)
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{
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if (pos != 0)
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{
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memcpy(&finsh_cmd_history[index][0],
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&finsh_cmd_history[index + 1][0], FINSH_CMD_SIZE);
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rt_kprintf("%c %c", ch, ch);
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}
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memset(&finsh_cmd_history[index][0], 0, FINSH_CMD_SIZE);
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memcpy(&finsh_cmd_history[index][0], line, pos);
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/* it's the maximum history */
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finsh_history_count = FINSH_HISTORY_LINES;
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if (pos <= 0) pos = 0;
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else pos --;
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line[pos] = 0;
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continue;
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}
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else
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/* handle end of line, break */
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else if (ch == 0x0d || ch == 0x0a)
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{
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memset(&finsh_cmd_history[finsh_history_count][0], 0, FINSH_CMD_SIZE);
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memcpy(&finsh_cmd_history[finsh_history_count][0], line, pos);
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/* change to ';' and break */
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line[pos] = ';';
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/* increase count and set current history position */
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finsh_history_count ++;
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#ifdef FINSH_USING_HISTORY
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if (use_history == 0)
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{
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/* push history */
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if (finsh_history_count >= FINSH_HISTORY_LINES)
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{
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/* move history */
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int index;
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for (index = 0; index < FINSH_HISTORY_LINES - 1; index ++)
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{
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memcpy(&finsh_cmd_history[index][0],
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&finsh_cmd_history[index + 1][0], FINSH_CMD_SIZE);
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}
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memset(&finsh_cmd_history[index][0], 0, FINSH_CMD_SIZE);
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memcpy(&finsh_cmd_history[index][0], line, pos);
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/* it's the maximum history */
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finsh_history_count = FINSH_HISTORY_LINES;
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}
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else
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{
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memset(&finsh_cmd_history[finsh_history_count][0], 0, FINSH_CMD_SIZE);
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memcpy(&finsh_cmd_history[finsh_history_count][0], line, pos);
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/* increase count and set current history position */
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finsh_history_count ++;
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}
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}
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current_history = finsh_history_count;
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#endif
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if (pos != 0) finsh_run_line(&parser, line);
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else rt_kprintf("\n");
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rt_kprintf("finsh>>");
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memset(line, 0, sizeof(line));
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pos = 0;
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break;
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}
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}
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current_history = finsh_history_count;
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#endif
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rt_kprintf("\n");
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finsh_parser_run(&parser, (unsigned char*)&line[0]);
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/* it's a large line, discard it */
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if (pos >= 256) pos = 0;
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/* compile node root */
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if (finsh_errno() == 0)
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{
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finsh_compiler_run(parser.root);
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}
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else
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{
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rt_kprintf("%s\n", finsh_error_string(finsh_errno()));
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}
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/* run virtual machine */
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if (finsh_errno() == 0)
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{
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finsh_vm_run();
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if (isprint((unsigned char)finsh_stack_bottom()))
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{
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rt_kprintf("\t'%c', %d, 0x%08x\n",
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(unsigned char)finsh_stack_bottom(),
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(unsigned int)finsh_stack_bottom(),
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(unsigned int)finsh_stack_bottom());
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}
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else
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{
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rt_kprintf("\t%d, 0x%04x\n",
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(unsigned int)finsh_stack_bottom(),
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(unsigned int)finsh_stack_bottom());
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}
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}
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finsh_flush(&parser);
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/* normal character */
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line[pos] = ch; ch = 0;
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rt_kprintf("%c", line[pos++]);
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use_history = 0; /* it's a new command */
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} /* end of device read */
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}
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}
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