feat(package/knowledge): Adds new knowledge package.

bridges/python/Pipfile

@@ -8,5 +8,7 @@ requests = "==2.21.0"
 pytube = "==9.5.0"
 tinydb = "==3.9.0"
 beautifulsoup4 = "==4.7.1"
+wolframalpha = "==3.0.1"
+wikipedia = "==1.4.0"
 
 [dev-packages]

packages/knowledge/README.md

@@ -0,0 +1,59 @@
+# Knowledge Package
+
+The Knowledge package aims at answering general questions.
+
+#### Usage
+
+1. Set up and account at [Wolfram Alpha API](http://developer.wolframalpha.com) and create an `app_id`.
+2. Duplicate the file `packages/knowledge/config/config.sample.json` and rename it `config.json`.
+3. Set your language and other settings.
+4. This package needs a few libraries to work properly. To install it, from inside leon directory, `cd bridges/python`
+5. `pipenv install requests wikipedia wolframalpha`
+6. Done!
+
+
+### Wikipedia
+
+```
+(en-US)
+- "Search on Wikipedia GitHub"
+```
+
+#### Requirements
+- requests
+- wikipedia
+
+#### Options
+
+- `lang`: Choose your language. Default: `en`
+- `sentences`: Number of sentences to report. No greater than 10.
+
+
+#### Links
+
+- [MediaWiki API](https://www.mediawiki.org/wiki/API:Main_page)
+- [Wikipedia GitHub](https://github.com/goldsmith/Wikipedia)
+- [Wikipedia Docs](https://wikipedia.readthedocs.io/en/latest/)
+
+
+### Wolfram Alpha
+
+```
+(en-US)
+- "On Wolfram Alpha search for the integral of cos(x)"
+- "On Wolfram Alpha search for Barack Obama's age"
+
+```
+
+#### Requirements
+- wolframalpha
+
+#### Options
+- `app_id`: Your app id.
+- `lang`: Choose your language. Default: `en`
+
+#### Links
+
+- [Wolfram Alpha API](http://developer.wolframalpha.com)
+- [Wolfram Alpha GitHub](https://github.com/jaraco/wolframalpha)
+- [Wolfram Alpha Docs](http://products.wolframalpha.com/docs/WolframAlpha-API-Reference.pdf)

packages/knowledge/config/config.sample.json

@@ -0,0 +1,12 @@
+{
+  "wikipedia": {
+    "lang": "en",
+    "sentences": 5,
+    "options": {}
+  },
+  "wolframalpha": {
+    "app_id": "YOUR_APP_ID",
+    "lang": "en",
+    "options": {}
+  }
+}

packages/knowledge/data/answers/en.json

@@ -0,0 +1,41 @@
+{
+  "wikipedia": {
+    "acquiring": [
+      "Right away!",
+      "One second please.",
+      "Just a second...",
+      "Browsing Wikipedia right now..."
+    ],
+    "summary": [
+      "%summary%"
+    ],
+    "disambiguation_error": [
+      "Disambiguation error."
+    ],
+    "page_error": [
+      "Your request does not match any page."
+    ],
+    "no_entities_error": [
+      "Your request was not well formatted. Please, retry."
+    ],
+    "connection_error": [
+      "I'm having issuse reaching the server."
+    ]
+  },
+  "wolframalpha": {
+    "acquiring": [
+      "Right away!",
+      "One second please.",
+      "Just a second..."
+    ],
+    "result": [
+      "%result%"
+    ],
+    "no_query": [
+      "Please, specify a query."
+    ],
+    "connection_error": [
+      "I'm having issuse reaching the server."
+    ]
+  }
+}

packages/knowledge/data/expressions/en.json

@@ -0,0 +1,95 @@
+{
+  "wikipedia": {
+    "summary": {
+      "expressions": [
+        "Search on Wikipedia",
+        "Search on Wikipedia for",
+        "Search for ",
+        "Search",
+        "Look for",
+        "On wikipedia look for"
+      ],
+      "entities": [
+        {
+          "type": "trim",
+          "name": "page",
+          "conditions": [
+            {
+              "type": "after_last",
+              "from": "wikipedia"
+            },
+            {
+              "type": "between",
+              "from": "wikipedia",
+              "to": "?"
+            },
+            {
+              "type": "after_last",
+              "from": "for"
+            },
+            {
+              "type": "between",
+              "from": "for",
+              "to": "?"
+            },
+            {
+              "type": "between",
+              "from": "search",
+              "to": "on"
+            },
+            {
+              "type": "after_last",
+              "from": "search"
+            }
+          ]
+        }
+      ]
+    },
+    "random": {
+      "expressions": [
+        "Search a random page on Wikipedia",
+        "Search a random Wikipedia page",
+        "Give me a random page on Wikipedia"
+      ]
+    }
+  },
+  "wolframalpha": {
+    "query": {
+      "expressions": [
+        "On Wolfram Alpha",
+        "On Wolfram Alpha search for",
+        "On Wolfram Alpha search for the",
+        "Search for this on Wolfram Alpha"
+      ],
+      "entities": [
+        {
+          "type": "trim",
+          "name": "query",
+          "conditions": [
+            {
+              "type": "before_first",
+              "from": "on"
+            },
+            {
+              "type": "after_last",
+              "from": "Alpha"
+            },
+            {
+              "type": "after_last",
+              "from": "for"
+            },
+            {
+              "type": "after_last",
+              "from": "the"
+            },
+            {
+              "type": "between",
+              "from": "for",
+              "to": "on"
+            }
+          ]
+        }
+      ]
+    }
+  }
+}

packages/knowledge/version.txt

@@ -0,0 +1 @@
+1.0.0