Feb 14
trans程序的源代码在Msys下用gcc编译调试通过。
使用说明：trans [-r/-s] srcfile objfile
其中，-R 将摩斯码翻译成英文；
-S 将英语翻译成摩斯码。
srcfile为需要翻译的文本文件。运行成功后结果会保存在objfile文件中。
注意：若是翻译英文，须保证所有字母均为大写字母。且标点符号仅可为“.”和“,”
代码已上传至github https://github.com/longqzh/MorseCode_Translator
/* *******************************
*
* Translator for Morse Code
*
* Author: Long Qianzhi
* Date:2010/1/28
*
* *******************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define MAX 39
struct table{
char letter;
char mor[8];
}table[]={
{'A',".-"},{'B',"-..."},{'C',"-.-."},
{'D',"-.."},{'E',"."},{'F',"..-."},
{'G',"--."},{'H',"...."},{'I',".."},
{'J',".---"},{'K',"-.-"},{'L',".-.."},
{'M',"--"},{'N',"-."},{'O',"---"},
{'P',".--."},{'Q',"--.-"},{'R',".-."},
{'S',"..."},{'T',"-"},{'U',"..-"},
{'V',"...-"},{'W',".--"},{'X',"-..-"},
{'Y',"-.--"},{'Z',"--.."},{'0',"-----"},
{'1',".----"},{'2',"..---"},{'3',"...--"},
{'4',"....-"},{'5',"....."},{'6',"-...."},
{'7',"--..."},{'8',"---.."},{'9',"----."},
{'.',".-.-.-"},{',',"--..--"},{' ',".--.-."},
{'\n',""}
};
FILE *infp=NULL, *outfp=NULL;
void check_file(char *in, char *out)
{
if((infp=fopen(in,"r"))==NULL){
printf("\nCan't open source file : %s\n", in);
exit(1);
}
else if ((outfp=fopen(out,"w"))==NULL){
printf("\nCan't open output file : %s\n", out);
exit(1);
}
return;
}
int file_size(FILE *fp)
{
int fsize=0;
char c;
while((c=fgetc(fp))!=EOF)
fsize++;
rewind(fp);
return fsize;
}
char* make_buf(int n)
{
char *pstr;
pstr=(char *)malloc(n*sizeof(char));
if(pstr==NULL){
printf("\nMalloc failed!\n");
exit(1);
}
return pstr;
}
void m2t()
{
char *buffer;
int fnum,n=0,i=0;
char tmp[8]="";
/* Read all of the data from srcfile to buffer.*/
fnum=file_size(infp);
buffer=make_buf(fnum+1);
if((fread(buffer,sizeof(char),fnum,infp))!=fnum){
printf("\nSomething wrong about reading file!\n");
exit(1);
}
*(buffer+fnum)='\0';
fclose(infp);
printf("%s\n",buffer);fflush(stdout);
while(*buffer!='\0'){
/* Read a word from buffer to tmp.*/
while(*buffer!=' ' && *buffer!='\0'){
tmp[n++]=*buffer++;
if(n>7){
tmp[7]='\0';
printf(" %s : Bad MorseCode!\n", tmp);
exit(1);
}
}
tmp[n]='\0';
n=0;
printf("%s\t",tmp);fflush(stdout);
while(strcmp(tmp,table[i++].mor)){
if(i>=MAX && *(buffer+1)!='\0'){
printf(" %s : CANNOT find it!\n", tmp);
exit(1);
}
}
fputc(table[--i].letter,outfp);
printf("%c\t",table[i].letter);fflush(stdout);
i=0;
buffer++;
}
fclose(outfp);
printf("The translated file is created.\n");
fflush(stdout);
}
void t2m()
{
char *buffer;
int fnum,i=0;
/* Read all of the data from srcfile to buffer.*/
fnum=file_size(infp);
buffer=make_buf(fnum+1);
if((fread(buffer,sizeof(char),fnum,infp))!=fnum){
printf("\nSomething wrong about reading file!\n");
exit(1);
}
*(buffer+fnum)='\0';
fclose(infp);
printf("%s %d\n", buffer,(int)(*buffer));fflush(stdout);
while(*buffer!='\0'){
/* find the MorseCode according to character.*/
while(*buffer!=table[i].letter){
i++;
fflush(stdout);
if(i>MAX && *buffer!=EOF){
printf(" %c %d: Bad character\n", *buffer,(int)(*buffer));
exit(1);
}
}
buffer++;
printf("%c-->%s\t\n",table[i].letter,table[i].mor);fflush(stdout);
fputs(table[i].mor,outfp);
fputc(' ',outfp);
i=0;
}
fclose(outfp);
printf("The translated file is created.\n");
fflush(stdout);
}
int main(int argc,char *argv[])
{
if (argc!=4){
printf("Usage: trans [-R/-S] srcfile outfile\n");
printf("\n\t -r translate Morse to English.");
printf("\n\t -s translate English to Morse.");
printf("\n\t -h show this help information.\n");
fflush(stdout);
return 1;
}
if (!strcmp(argv[1],"-r") || !strcmp(argv[1],"-R")){
check_file(argv[2],argv[3]);
m2t();
}
else if (!strcmp(argv[1],"-s") || !strcmp(argv[1],"-S")){
check_file(argv[2],argv[3]);
t2m();
}else{
printf("You input wrong arguments!\n");
printf("Please type \"trans -h\".\n");
fflush(stdout);
}
return 0;
}
