Sha256: 3db7316b5bdcb6fa1814f8c48b81c874c43f2c55341cba2a8a731aab612579bf
Contents?: true
Size: 1.66 KB
Versions: 69
Compression:
Stored size: 1.66 KB
Contents
var Chainsaw = require('chainsaw');
var Lazy = require('lazy');
module.exports = Prompt;
function Prompt (stream) {
var waiting = [];
var lines = [];
var lazy = Lazy(stream).lines.map(String)
.forEach(function (line) {
if (waiting.length) {
var w = waiting.shift();
w(line);
}
else lines.push(line);
})
;
var vars = {};
return Chainsaw(function (saw) {
this.getline = function (f) {
var g = function (line) {
saw.nest(f, line, vars);
};
if (lines.length) g(lines.shift());
else waiting.push(g);
};
this.do = function (cb) {
saw.nest(cb, vars);
};
});
}
var util = require('util');
if (__filename === process.argv[1]) {
var stdin = process.openStdin();
Prompt(stdin)
.do(function () {
util.print('x = ');
})
.getline(function (line, vars) {
vars.x = parseInt(line, 10);
})
.do(function () {
util.print('y = ');
})
.getline(function (line, vars) {
vars.y = parseInt(line, 10);
})
.do(function (vars) {
if (vars.x + vars.y < 10) {
util.print('z = ');
this.getline(function (line) {
vars.z = parseInt(line, 10);
})
}
else {
vars.z = 0;
}
})
.do(function (vars) {
console.log('x + y + z = ' + (vars.x + vars.y + vars.z));
process.exit();
})
;
}
Version data entries
69 entries across 69 versions & 2 rubygems