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fixed cc6e112 from https://gitee.com/uhamc/kernel_liteos_a/pulls/702

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fix: shell支持exit退出，完善帮助信息，特殊处理不可见字符

Change-Id: Ia6dbff0faed4ec73fcf35691676f1acb2b8df78d
Signed-off-by: huangshan <huangshan9@huawei.com>
This commit is contained in:
huangshan
2021-11-05 10:06:54 +08:00
parent f6d727fed8
commit 017d8163ea
5 changed files with 91 additions and 13 deletions
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13
shell/full/src/cmds/shell_shellcmd.c
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@@ -31,6 +31,10 @@
#include "shcmd.h"
#define DEFAULT_SCREEN_WIDTH 80
#define MAX_CMD_KEY_WIDTH 12
#define CMD_ITEM_PER_LINE (DEFAULT_SCREEN_WIDTH / (MAX_CMD_KEY_WIDTH + 1))
UINT32 OsShellCmdHelp(UINT32 argc, const CHAR **argv)
{
UINT32 loop = 0;
@@ -45,15 +49,16 @@ UINT32 OsShellCmdHelp(UINT32 argc, const CHAR **argv)
PRINTK("*******************shell commands:*************************\n");
LOS_DL_LIST_FOR_EACH_ENTRY(curCmdItem, &(cmdInfo->cmdList.list), CmdItemNode, list) {
if ((loop & (8 - 1)) == 0) { /* 8 - 1:just align print */
if ((loop % CMD_ITEM_PER_LINE) == 0) { /* just align print */
PRINTK("\n");
}
PRINTK("%-12s ", curCmdItem->cmd->cmdKey);
PRINTK("%-12s ", curCmdItem->cmd->cmdKey);
loop++;
}
PRINTK("\n");
PRINTK("\n\nAfter shell prompt \"OHOS # \":\n"
"Use `<cmd> [args ...]` to run built-in shell commands listed above.\n"
"Use `exec <cmd> [args ...]` or `./<cmd> [args ...]` to run external commands.\n");
return 0;
}