Initial commit.

.gitignore

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+/node_modules

app.js

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+var readlineSync = require('readline-sync');
+var alexa = require('alexa-app');
+
+var app = new alexa.app('sample');
+
+app.intent('askName',
+  {
+    "slots": {"NAME":"LITERAL", "LASTNAME":"LITERAL"},
+    "utterances": [ "my {name is|name's|names} {name|NAME}",
+                    "my last {name is|name's|names} {lastname|LASTNAME}",
+                    "{whats|what's|what is} my name{?|}" ]
+  },
+  function(req, res) {
+    if (req.variables.length == 0 && req.get('NAME') && req.get('LASTNAME')) {
+        res.say('Your name is ' + req.get('NAME') + ' ' + req.get('LASTNAME') + '.');
+    }
+    else if (req.variables.length > 0) {
+        if (req.get('LASTNAME') && !req.get('NAME')) {
+            res.say('Ok, ' + req.get('LASTNAME') + '.');
+        }
+        else if (req.get('NAME')) {
+            res.say('Nice to meet you, ' + req.get('NAME') + '.');
+        }
+    }
+    else {
+        res.say("I still don't know your name!");
+    }
+  }
+);
+
+app.intent('color',
+  {
+    "slots": {"COLOR":"LITERAL"},
+    "utterances": [ "my {favorite|best|} color is {color|COLOR}",
+                    "whats my {favorite|best|} color {?|}" ]
+  },
+  function(req, res) {
+    if (req.get('COLOR')) {
+        res.say('Your favorite color is ' + req.get('COLOR') + '.');
+    }
+  }
+);
+
+app.intent('hello',
+  {
+    "slots": {},
+    "utterances": [ "{hi|hello|howdy|hi there|hiya|hi ya|hey|hay}" ]
+  },
+  function(req, res) {
+    res.say("Hi! What's your name?");
+  }
+);
+
+app.intent('quit',
+  {
+    "slots": {},
+    "utterances": [ "{quit|exit|bye|seeya|see ya|later|goodbye|good bye|good-bye}" ]
+  },
+  function(req, res) {
+    res.say("Bye!");
+  }
+);
+
+//console.log(app.utterances());
+//console.log(app.intents['askName'].schema.slots[Object.keys(app.intents['askName'].schema.slots)[0]]);
+var slots = {};
+
+function process(input) {
+    Object.keys(app.intents).forEach(function(key) {
+        // Get utterances for this intent.
+        var utterances = [];
+        app.utterances().split('\n').forEach(function(template) {
+            // Get the intent name from this template line.
+            var matches = template.match(/([a-zA-Z0-9]+)\t/);
+            if (matches && matches[1] == key) {
+                // The intent matches ours, let's use it. First, strip out intent name.
+                var start = template.indexOf('\t');
+                template = template.substring(start + 1);
+
+                // Add this utterance for processing.
+                utterances.push(template);
+            }
+        });
+
+        var result = parse(input, utterances);
+        if (result.isValid) {
+            // This intent is valid for the input. Set slots.
+            for (var i in result.pairs) {
+                var pair = result.pairs[i];
+                slots[pair.name] = pair.value;
+            };
+
+            // Call intent.
+            app.intents[key]['function'](
+                {
+                    // Request
+                    input: input,
+                    slots: slots,
+                    variables: result.pairs,
+
+                    get: function(key) {
+                        return slots[key];
+                    },
+
+                    set: function(key, value) {
+                        slots[key] = value;
+                    }
+                },
+                {
+                    // Response
+                    say: function(text) {
+                        console.log(text);
+                    }
+                }
+            );
+        }
+    });
+}
+
+function parse(text, utterances) {
+    var result = { isValid: true, pairs: [] };
+
+    for (var h in utterances) {
+        var template = utterances[h];
+        var regEx = /[ \n\r\t,\.\!`~@#\$%\^\&\*\(\)\[\]:;\"\?\/\\\<\_\-\+\=>]+/;
+
+        result.isValid = true;
+
+        if (template && template.length > 0) {
+            //console.log('Template: ' + template);
+            //console.log('Text: ' + text);
+
+            // Find all variables and fill in values.
+            var tokens = template.split(regEx);
+            var words = text.split(regEx);
+
+            if (tokens.length == words.length) {
+                for (var i = 0; i < tokens.length; i++) {
+                    var token = tokens[i];
+                    var word = words[i];
+
+                    //console.log('Token: ' + token);
+                    //console.log('Word: ' + word);
+
+                    if (token.toLowerCase() != word.toLowerCase()) {
+                        // A word doesn't match, but is it a variable?
+                        var tokenParts = token.match(/{([a-zA-Z0-9]+)\|([a-zA-Z0-9]+)}/);
+                        if (tokenParts && tokenParts.length == 3) {
+                            //console.log(tokenParts[2] + ' = ' + word);
+                            // Found a variable.
+                            result.pairs.push({ name: tokenParts[2], value: word });
+                        }
+                        else {
+                            result.isValid = false;
+                            break;
+                        }
+                    }
+                }
+            }
+            else {
+                result.isValid = false;
+                continue;
+            }
+        }
+        else {
+            result.isValid = false;
+        }
+
+        if (result.isValid) {
+            break;            
+        }
+    };
+
+    return result;
+}
+
+var text = ' ';
+while (text.length > 0 && text != 'quit') {
+    text = readlineSync.question(':> ');
+    process(text);
+}

package.json

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+{
+  "name": "chatskills",
+  "version": "0.0.1",
+  "dependencies": {
+    "readline-sync": "*",
+    "alexa-app": "*"
+  }
+}