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A new shell command for eLua.

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cat or type, takes one path+filename as it's argument and prints it's text content.
Code revision and testing are apreciated.
This commit is contained in:
Dado Sutter 2009-11-23 19:38:56 +00:00
parent ac5859d332
commit a70beaf857
1 changed files with 37 additions and 6 deletions
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43
src/shell.c
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@ -47,12 +47,13 @@ static void shell_help( char* args )
{ {
args = args; args = args;
printf( "Shell commands:\n" ); printf( "Shell commands:\n" );
printf( " exit - exit from this shell\n" ); printf( " exit - exit from this shell\n" );
printf( " help - print this help\n" ); printf( " help - print this help\n" );
printf( " ls or dir - lists ROMFS files and sizes\n" ); printf( " ls or dir - lists ROMFS files and sizes\n" );
printf( " lua [args] - run Lua with the given arguments\n" ); printf( " cat or type - lists file contents\n" );
printf( " recv - receive a file (XMODEM) and execute it\n" ); printf( " lua [args] - run Lua with the given arguments\n" );
printf( " ver - print eLua version\n" ); printf( " recv - receive a file (XMODEM) and execute it\n" );
printf( " ver - print eLua version\n" );
} }
// 'lua' handler // 'lua' handler
@ -188,6 +189,34 @@ static void shell_ls( char* args )
printf( "\n\nTotal = %u bytes\n\n", ( unsigned )total ); printf( "\n\nTotal = %u bytes\n\n", ( unsigned )total );
} }
// 'cat' and 'type' handler
static void shell_cat( char *args )
{
args = args;
FILE *fp;
int c;
// replace *args ending space with a string terminator
*(strchr( args, ' ' )) = 0;
if( ( fp = fopen( args , "rb" ) ) != NULL ) {
c = fgetc( fp );
while( c != EOF ) {
printf("%c", (char) c );
c = fgetc( fp );
}
fclose ( fp );
}
else
if ( *args )
printf( "File %s not found\n", args );
else
printf( "Usage: cat (or type) <filename>\n" );
}
// Insert shell commands here // Insert shell commands here
static const SHELL_COMMAND shell_commands[] = static const SHELL_COMMAND shell_commands[] =
{ {
@ -198,6 +227,8 @@ static const SHELL_COMMAND shell_commands[] =
{ "exit", NULL }, { "exit", NULL },
{ "ls", shell_ls }, { "ls", shell_ls },
{ "dir", shell_ls }, { "dir", shell_ls },
{ "cat", shell_cat },
{ "type", shell_cat },
{ NULL, NULL } { NULL, NULL }
}; };