基于C语言的NMEA-0183解析程序（三）

#ifndef _TRANSLATE_H_
#define _TRANSLATE_H_

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<ctype.h>

#include"Type.h"
#include"Operation.h"
#include"Condition.h"
#include"Translate.h"
#include"Package.h"
#include"Analysis.h"
#include"Printout.h"

/******************************************************************************
 *  Function    -  Read and Analysis
 *
 *  Purpose     -  读取txt文件解析nmea有效命令
 *
 *  Description -
 *
 * modification history
 * ----------------------------------------
 * v1.0  , 2018-12-20,  zhanglixv  written
 * v2.0  , 2019-01-10,  zhanglixv  modific
 * ----------------------------------------
 ******************************************************************************/
int Translate(char avhemi_, float speed_, int svnum_, int sn_)
{
    FILE *fpr,*fpw;/*文件指针*/
    char buf[256]="\0";
    char tep[256]="\0";
	char tmp[512]="\0";
    static u8 dat[512]="\0";
    int len=0;/*行字符个数*/
	int sign=0;/*封包标志*/
    int segm=0;/*命令断行标记*/

	u8 *Buf;
	Buf = (u8*)malloc(sizeof(u8) * 512);
    if(Buf == NULL)
    {
        printf("指针Buf内存分配错误");
        exit(1);
    }

	Nmea_msg *Res;
	Res = (Nmea_msg *)malloc(sizeof(Nmea_msg));
    if(Res == NULL)
    {
        printf("指针Res内存分配错误");
        exit(1);
    }
	memset(Res, 0, sizeof(Nmea_msg));

	char *head;/*NMEA命令头部地址*/
	head = (char*)malloc(sizeof(char) * 256);
	if(head == NULL)
    {
        printf("指针head内存分配错误");
        exit(1);
    }
	memset(head, '\0', (sizeof(char) * 256));

	char *tail;/*NMEA命令尾部地址*/
	tail = (char*)malloc(sizeof(char) * 8);
	if(tail == NULL)
    {
        printf("指针tail内存分配错误");
        exit(1);
    }
	memset(tail, '\0', (sizeof(char) * 8));

    if ((fpr=fopen("GPS_NMEA.txt", "r")) == NULL)/*开始读取文件*/
    {
        perror("Fail to read\n");
        exit(1);
    }

	if ((fpw = fopen("Result.txt", "w")) == NULL)
	{
		perror("Fail to open\n");
		exit(1);
	}

    while(fgets(buf,256,fpr) != NULL)/*读取直至文件结束,返回所有命令*/
    {
        if ((head = strstr(buf, "$"))||(segm == 1))/*NMEA命令起始判定//起始符*/
        {
			if (head != NULL)
			{
				strcpy(buf, head);
				strcpy(tep,"\0");/*字符串清空处理*/
			}

			tail = strstr(buf, "*");
            if(!tail)/*断句命令判定//结束符*/
            {
				segm = 1;
				len = strlen(buf);
                buf[len-1] = '\0';
				strcat(tep, buf);
				if(strlen(tep) >= 128)/*命令长度超常越界判定*/
				{
				    segm = 0;
                    strcpy(tep, "\0");/*字符串清空处理*/
				}
            }
            else
            {
                segm = 0;
                *(tail + 3) = '\0';
				strcat(tep, buf);
                if(strnstr(tep, "$GNTXT", 6))
				{
				    strcpy(tep, "\0");/*字符串清空处理*/
                    continue;
				}

				if(!NMEA_Checkout(tep))/*有效命令校验值判定*/
                {
                    strcpy((char*)dat,"\0");/*字符串清空处理*/
                    strcpy(tmp,"\0");/*字符串清空处理*/
                    strcpy(tep,"\0");/*字符串清空处理*/
                }
                else
                {
                    sign = Package(tep);/*检测封包标志*/
                    if(sign)
                    {
                        if(sign == 1)
                        {
                            strcat((char*)dat, tep);
                            strcat((char*)dat, "\n");
                            strcpy(tmp, "\0");/*字符串清空处理*/
                            strcpy(tep, "\0");/*字符串清空处理*/
                        }
                        else/*sign == 2*/
                        {
                            strcpy(tmp,"\0");
                            strcat(tmp, tep);
                            strcat(tmp,"\n");
                            Buf = (u8*)dat;
                            if(*Buf != '\0')
                            {
                                while (*Buf != '\0')
                                {
                                    Buf = NMEA_GPZDA_Analysis(Res, Buf);
                                    Buf = NMEA_GPGGA_Analysis(Res, Buf);
                                    Buf = NMEA_GPGLL_Analysis(Res, Buf);
                                    Buf = NMEA_GPVTG_Analysis(Res, Buf);
                                    Buf = NMEA_GPGSA_Analysis(Res, Buf);
                                    Buf = NMEA_GPGSV_Analysis(Res, Buf);
                                    Buf = NMEA_GPRMC_Analysis(Res, Buf);
                                }

                                if((Res->utc.date != 0)&&(Res->utc.month != 0)&&(Res->utc.year != 0))/*日期信息有效*/
                                {
                                    if(((Res->avhemi) == avhemi_) || (avhemi_ == 'C'))/*输入条件判断*/
                                    {
                                        if(((Res->speed) >= speed_) && ((Res->svnum) >= svnum_))
                                        {
                                            printout(Res,sn_,fpw);
                                        }
                                    }
                                }
                                memset(Res, 0, sizeof(Nmea_msg));
                            }
                            strcpy((char*)dat, "\0");
                            strcat((char*)dat, tmp);
                        }
                    }
                    else
                    {
                        strcpy((char*)dat,"\0");
                        strcpy(tmp, "\0");/*字符串清空处理*/
                        strcpy(tep, "\0");/*字符串清空处理*/
                    }
                }
            }
        }
        else
            continue;
    }

    free(Buf);
    Buf = NULL;
	free(Res);
	Res = NULL;
	free(head);
	head = NULL;
	free(tail);
	tail = NULL;
	return 0;
}

#endif // _TRANSLATE_H_