cat.bsh

来自「用java 编写的源码开放的文本编辑器。有很多有用的特性」· BSH 代码 · 共 46 行

/**
	Print the contents of filename, url, or stream (like Unix cat)
*/

bsh.help.cat = "usage: cat( filename )";

/**
	cat comment
*/
cat( String filename ) 
{
	file = pathToFile( filename );

	if ( !file.exists() || !file.canRead() ) {
		print( "Can't read " + file );
		return;
	}

	cat ( new FileReader( file ) );
}

/**
	cat comment
*/
cat( URL url ) 
{
	cat( url.openStream() );
}

cat( InputStream ins ) 
{
	bin = new BufferedReader( new InputStreamReader( ins ) );
	cat( bin );
}

cat( Reader reader ) 
{
	try {
		bin = new BufferedReader( reader );
		while ( (line=bin.readLine() ) != null )
			print( line );
	} catch ( Exception e ) {
		print( "Error reading stream:"+ e);
	}
}