كود PHP:
# include <windows.h>
# include <stdio.h>
# include <time.h>
struct
{
char l;
char *c;
}
code[] =
{
'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', "----.",
'/', "-..-.",
'+', ".-.-.",
'=', "-...-",
'.', ".-.-.-",
',', "--..--",
'?', "..--..",
'(', "-.--.",
')', "-.--.-",
'-', "-....-",
'"', ".-..-.",
'_', "..--.-",
'\'', ".----.",
':', "---...",
';', "-.-.-.",
'$', "...-..-",
'\1', "=",
0, 0,
};
char *port = "com1:";
HANDLE hFile = INVALID_HANDLE_VALUE;
bool
opencomm( char *which )
{
int da = GENERIC_READ | GENERIC_WRITE;
int sm = FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE;
int cd = OPEN_EXISTING;
int flags = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_NO_BUFFERING;
hFile = CreateFile( which, da, sm, 0, cd, flags, 0 );
if( hFile == INVALID_HANDLE_VALUE )
{
printf( "Can't open '%s'\n", which );
return false;
}
DCB dcb;
if( ! GetCommState( hFile, &dcb ) )
{
printf( "Can't get comm state for '%s'\n", which );
return false;
}
dcb.fOutxCtsFlow = FALSE;
dcb.fOutxDsrFlow = FALSE;
dcb.fDtrControl = DTR_CONTROL_ENABLE;
dcb.fDsrSensitivity = FALSE;
dcb.fRtsControl = RTS_CONTROL_DISABLE;
if( ! SetCommState( hFile, &dcb ) )
{
printf( "Can't set comm state for '%s'\n", which );
return false;
}
return true;
}
void
on( void )
{
EscapeCommFunction( hFile, SETDTR );
EscapeCommFunction( hFile, SETRTS );
}
void
off( void )
{
EscapeCommFunction( hFile, CLRDTR );
EscapeCommFunction( hFile, CLRRTS );
}
int dot_length = 100;
int dash_length = 300;
int token_sep = 100;
int char_sep = 300;
int space_length = 700;
enum e_mode { CW, AM };
e_mode mode = AM;
bool low_tone = false;
void
dot( void )
{
if( mode == CW )
{
on();
Sleep( dot_length );
off();
}
else if( mode == AM )
{
for( int i = 0; i < dot_length / 2; i++ )
{
on();
Sleep( 1 );
if( low_tone )
Sleep( 1 );
off();
Sleep( 1 );
if( low_tone )
Sleep( 1 );
}
}
Sleep( token_sep );
}
void
dash( void )
{
if( mode == CW )
{
on();
Sleep( dash_length );
off();
}
else if( mode == AM )
{
for( int i = 0; i < dash_length / 2; i++ )
{
on();
Sleep( 1 );
if( low_tone )
Sleep( 1 );
off();
Sleep( 1 );
if( low_tone )
Sleep( 1 );
}
}
Sleep( token_sep );
}
void
long_tone( void )
{
printf( "5 second tone\n" );
on();
Sleep( 5000 );
off();
}
char *
lookup( char c )
{
for( int i = 0; code[i].c; i++ )
if( code[i].l == c )
return code[i].c;
return "";
}
void
send_char( char c )
{
if( c == ' ' )
{
Sleep( space_length );
return;
}
c = toupper( c );
char *str = lookup( c );
while( *str )
{
if( *str == '.' )
dot();
else if( *str == '-' )
dash();
else if( *str == '=' )
long_tone();
str++;
}
Sleep( char_sep );
off();
}
void
send( char *str )
{
while( *str )
send_char( *str++ );
}
int the_speed = 5;
int character_speed = 15.0;
void
set_speed( char *str )
{
the_speed = atoi( str );
if( character_speed < the_speed )
character_speed = the_speed; // all letters sent at 15 wpm minimum
dot_length = 60 * 1000 / character_speed / 50; // 60 seconds, 50 units
dash_length = 3 * dot_length;
token_sep = dot_length;
int milliseconds_per_word = 60 * 1000 / the_speed;
int milliseconds_in_36_units = 36 * 60 * 1000 / character_speed / 50;
char_sep = (milliseconds_per_word - milliseconds_in_36_units) / 7;
space_length = (milliseconds_per_word - milliseconds_in_36_units) / 3.5;
if( low_tone && mode == AM )
{
dot_length /= 2;
dash_length /= 2;
}
}
bool speed_test = false;
bool tone = false;
int repeat = 1;
char *message = 0;
char *file = 0;
int
main( int ac, char **av )
{
ac--;
av++;
char *speed = "5";
while( ac > 0 )
{
if( av[0][0] == '-' )
{
if( av[0][1] == 'p' ) // port
{
port = av[1];
ac--;
av++;
}
else if( av[0][1] == 'r' ) // repeat
{
repeat = atoi( av[1] );
ac--;
av++;
}
else if( av[0][1] == 'f' ) // file
{
file = av[1];
ac--;
av++;
}
else if( av[0][1] == 'm' ) // message
{
message = av[1];
ac--;
av++;
}
else if( av[0][1] == 's' ) // speed
{
speed = av[1];
ac--;
av++;
}
else if( av[0][1] == 'l' ) // low
{
low_tone = true;
}
else if( av[0][1] == 't' ) // test
{
speed_test = true;
}
else if( av[0][1] == 'o' ) // on
{
tone = true;
}
else if( av[0][1] == 'c' ) // continuous wave
{
mode = CW;
}
else if( av[0][1] == 'a' ) // amplitude modulation
{
mode = AM;
}
else
{
printf( "Usage: morse [-p port] [-s speed] [-r repeat_count]"
" [-f file] [-m message] [-c]\n\n" );
printf( "Example: morse -p com2: -s 5\n" );
printf( " gives 5 words per minute to com2\n" );
printf( "\n" );
printf( "Complete list of all options:\n" );
printf( " -p port use 'port' for the serial port\n" );
printf( " -r number repeat 'number' times\n" );
printf( " -f file read text from a file\n" );
printf( " -m message send message from command line\n" );
printf( " -t send the word 'paris ' for a minute\n" );
printf( " -o keep the transmitter on\n" );
printf( " -c Use CW instead of AM\n" );
printf( " -l Use 500 hz tone instead of 1,000 hz\n" );
return 0;
}
}
av++;
ac--;
}
set_speed( speed );
opencomm( port );
off();
if( tone )
{
on();
printf( "Transmiter is on\n" );
for(;;)
Sleep( 1000 );
}
if( speed_test )
{
time_t t = time(0);
for( int i = 0; i < the_speed; i++ )
send( "paris " );
printf( "%d word%s in %d seconds\n", the_speed,
the_speed == 1 ? "" : "s", time(0) - t );
return 0;
}
printf( "Speed set to %d words per minute.\n", the_speed );
printf( "Mode is %s.\n", mode == AM ? "AM" : "CW" );
if( file )
{
printf( "File is '%s'.\n", file );
for( int i = 0; i < repeat; i++ )
{
char buf[1024];
FILE *fd = fopen( file, "r" );
if( fd == 0 )
{
printf( "Can't open '%s' for reading\n", file );
return 0;
}
for( ;; )
{
int cnt = fread( buf, 1, sizeof buf, fd );
if( cnt < 0 )
{
printf( "Can't read '%s'\n", file );
return 0;
}
if( cnt == 0 )
break;
buf[cnt] = 0;
send( buf );
}
fclose( fd );
}
return 0;
}
if( message )
{
for( int i = 0; i < repeat; i++ )
send( message );
return 0;
}
printf( "Type your messages:\n" );
printf( "> " );
fflush( stdout );
char out[1024];
while( gets( out ) )
{
for( int i = 0; i < repeat; i++ )
send( out );
printf( "> " );
fflush( stdout );
}
return 0;
}
