今天寫了一個UNIX2DOS工具，用于把UNIX系統的文本轉換成DOS（Windows）下支持的文本。
兩大操作系統文本主要的不同在于換行時UNIX里只有 '\n'字符，而在DOS（Windows）下變成了'\r\n'。
廢話不多說，此工具用C語言寫成，源代碼如下：
?
//
unix2dos
//
#include? < stdio.h >
#include? < stdlib.h >
int ?main( int ?argc, char ? * argv[])
{
???? int ?ch;
????FILE? * fpinPtr, * fpoutPtr;
???? if ?(argc != 3 )
????{
????????printf( " UNIX2DOS?program.\n\n " );
????????printf( " Usage:?command?source_file?target_file\n " );
????????printf( " Usage?example:?\ " unix2dos?src.txt?obj.txt\ " \n " );
????????exit(EXIT_FAILURE);
????}
???? if ?((fpinPtr = fopen(argv[ 1 ], " rb " )) == NULL)
????{
????????printf( " Input?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 1 ]);
????????exit(EXIT_FAILURE);
????}
???? if ?((fpoutPtr = fopen(argv[ 2 ], " wb " )) == NULL)
????{
????????printf( " Outout?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 2 ]);
????????exit(EXIT_FAILURE);
????}
???? while ( ! feof(fpinPtr))
????{
????????ch = fgetc(fpinPtr);
???????? if (ch >- 1 ? && ?ch? != ? ' \n ' )
????????{
????????????fputc(ch,fpoutPtr);
????????}
???????? else ? if (ch >- 1 )
????????{
????????????fputc( ' \r ' ,fpoutPtr);
????????????fputc(ch,fpoutPtr);
????????}
????}
????fclose(fpinPtr);
????fclose(fpoutPtr);
???? return ? 0 ;
}
//
#include? < stdio.h >
#include? < stdlib.h >
int ?main( int ?argc, char ? * argv[])
{
???? int ?ch;
????FILE? * fpinPtr, * fpoutPtr;
???? if ?(argc != 3 )
????{
????????printf( " UNIX2DOS?program.\n\n " );
????????printf( " Usage:?command?source_file?target_file\n " );
????????printf( " Usage?example:?\ " unix2dos?src.txt?obj.txt\ " \n " );
????????exit(EXIT_FAILURE);
????}
???? if ?((fpinPtr = fopen(argv[ 1 ], " rb " )) == NULL)
????{
????????printf( " Input?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 1 ]);
????????exit(EXIT_FAILURE);
????}
???? if ?((fpoutPtr = fopen(argv[ 2 ], " wb " )) == NULL)
????{
????????printf( " Outout?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 2 ]);
????????exit(EXIT_FAILURE);
????}
???? while ( ! feof(fpinPtr))
????{
????????ch = fgetc(fpinPtr);
???????? if (ch >- 1 ? && ?ch? != ? ' \n ' )
????????{
????????????fputc(ch,fpoutPtr);
????????}
???????? else ? if (ch >- 1 )
????????{
????????????fputc( ' \r ' ,fpoutPtr);
????????????fputc(ch,fpoutPtr);
????????}
????}
????fclose(fpinPtr);
????fclose(fpoutPtr);
???? return ? 0 ;
}
?
當然，還有一個附加產品：DOS2UNIX，源代碼如下：
//
dos2unix
//
#include? < stdio.h >
#include? < stdlib.h >
int ?main( int ?argc, char ? * argv[])
{
???? int ?ch;
????FILE? * fpinPtr, * fpoutPtr;
???? if ?(argc != 3 )
????{
????????printf( " DOS2UNIX?program.\n\n " );
????????printf( " Usage:?command?source_file?target_file\n " );
????????printf( " Usage?example:?\ " DOS2UNIX?src.txt?obj.txt\ " \n " );
????????exit(EXIT_FAILURE);
????}
???? if ?((fpinPtr = fopen(argv[ 1 ], " rb " )) == NULL)
????{
????????printf( " Input?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 1 ]);
????????exit(EXIT_FAILURE);
????}
???? if ?((fpoutPtr = fopen(argv[ 2 ], " wb " )) == NULL)
????{
????????printf( " Outout?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 2 ]);
????????exit(EXIT_FAILURE);
????}
???? while ( ! feof(fpinPtr))
????{
????????ch = fgetc(fpinPtr);
???????? if (ch >- 1 ? && ?ch? != ? ' \r ' )
????????{
????????????fputc(ch,fpoutPtr);
????????}
????}
????fclose(fpinPtr);
????fclose(fpoutPtr);
???? return ? 0 ;
}
//
#include? < stdio.h >
#include? < stdlib.h >
int ?main( int ?argc, char ? * argv[])
{
???? int ?ch;
????FILE? * fpinPtr, * fpoutPtr;
???? if ?(argc != 3 )
????{
????????printf( " DOS2UNIX?program.\n\n " );
????????printf( " Usage:?command?source_file?target_file\n " );
????????printf( " Usage?example:?\ " DOS2UNIX?src.txt?obj.txt\ " \n " );
????????exit(EXIT_FAILURE);
????}
???? if ?((fpinPtr = fopen(argv[ 1 ], " rb " )) == NULL)
????{
????????printf( " Input?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 1 ]);
????????exit(EXIT_FAILURE);
????}
???? if ?((fpoutPtr = fopen(argv[ 2 ], " wb " )) == NULL)
????{
????????printf( " Outout?file?\ " % s\ " ?could?not?be?opened\n " ,argv[ 2 ]);
????????exit(EXIT_FAILURE);
????}
???? while ( ! feof(fpinPtr))
????{
????????ch = fgetc(fpinPtr);
???????? if (ch >- 1 ? && ?ch? != ? ' \r ' )
????????{
????????????fputc(ch,fpoutPtr);
????????}
????}
????fclose(fpinPtr);
????fclose(fpoutPtr);
???? return ? 0 ;
}
?
參考代碼源：HP UNIX CP命令?，歡迎各位高手批評指正。?
Wednesday, May 06, 2009
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