try/catch around the mapper function

[ghost]

Now when the mapper function throws, its error will be emitted on the stream object as an 'error' event. This is particularly useful for parsing newline-separated json with something like:

var split = require('split');
var s = split(JSON.parse);
s.on('error', process.exit.bind(null, 1));
process.stdin.pipe(s).pipe(process.stdout);

[dominictarr]

and with tests, awesome!

[dominictarr]

merged into 0.2.6