?? my_string.c.bak
字號:
/*
* uart.c - driver of uart
*
* Author: <zgxgoo@gmail.com>
* Date: 2007-10-31
*/
#include <stdlib.h>
#include <stdio.h>
#include "my_string.h"
int addrdn;
typedef struct pp {
int p[3];
int num;
}pt;
pt pr;
char *use_cmd[] = {"help", "dn", "go", "erase", "cp"};
extern int addr[2];
int my_strcmp(const char *dst , const char *src)
{
while ( *src == *dst && *dst != '\0' )
{
src++;
dst++;
}
return (*src - *dst);
}
int my_strcpy(char *dst, char *src)
{
while (*dst++ = *src++);
return 0;
}
void help_pp()
{
int i = 0;
for(; i<5;i++)
printf("%s\n",use_cmd[i]);
}
void div_cmd(char *cmd)
{
int i=0;
int j=0;
while (cmd[i] == ' ') i++;
pr.p[j++] = i;
while (cmd[i] != '\0' && j <= 3)
{
if (cmd[i] == ' ')
{
cmd[i++] = '\0';
while (cmd[i] == ' ') i++;
pr.p[j++] = i;
pr.num++;
}
i++;
}
return;
}
int cmd_cmp(char *cmd)
{
int i = 0;
int j = 0;
int result;
pr.num = 0;
div_cmd(cmd);
for(; i<5;i++)
{
result = my_strcmp(use_cmd[i], &cmd[pr.p[0]]);
if(result == 0)
{
for (; j < pr.num; j++)
addr[j] = (int) strtol(&cmd[pr.p[j+1]], (char **) NULL, 16);
return i;
}
}
return 5;
}
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