proposal for doctests

.travis.yml

@@ -24,4 +24,4 @@ install:
 
 # run tests
 script:
-  - "py.test tests/ -x"
+  - "py.test tests/ website/tests/ -x"

website/Makefile

@@ -1,9 +1,12 @@
-all: site
+all: dir site
+
+dir:
+	mkdir -p site
 
 site: site/index.html site/blog/ site/docs/ site/license/ site/blog/introducing-spacy/ site/blog/parsing-english-in-python/ site/blog/part-of-speech-POS-tagger-in-python/ site/tutorials/twitter-filter/ site/tutorials/syntax-search/ site/tutorials/mark-adverbs/ site/blog/writing-c-in-cython/ site/blog/how-spacy-works/
 
 site/index.html: src/jade/header.jade src/jade/*.jade
-	jade -P src/jade/home/index.jade --out site/
+	./run_jade src/jade/home/index.jade $@
 
 site/docs/: src/jade/docs/*.jade src/jade/header.jade
 	jade -P src/jade/docs/index.jade --out $@

website/run_jade

@@ -0,0 +1,59 @@
+#!/usr/bin/env node
+'use strict';
+
+var fs = require('fs');
+var jade = require('jade');
+
+// returns all: code and return value (default)
+jade.filters.doctest_all = function (html, _, use_rv) {
+    use_rv = use_rv === undefined ? true : use_rv;
+
+    var lines = html.trim().split(/\n/),
+        block = [],
+        res = '';
+
+    lines.forEach(function (line) {
+        if (line.indexOf('>>> ') === 0) {
+            // we use ### to suppress lines
+            if (line.indexOf("###") === -1) {
+                block.push(line.replace(/^>>> /gm, ''));
+            }
+        } else if (block.length > 0) {
+            res += '<pre class="language-python"><code>' + block.join('\n') + '</code></pre>';
+            block = [];
+
+            if (use_rv) {
+                res += '<p>Which produces:</p>';
+                res += '<pre class="language-python"><code>' + line + '</code></pre>';
+            }
+        }
+    });
+
+    if (block.length > 0) {
+        res += '<pre class="language-python"><code>' + block.join('\n') + '</code></pre>';
+    }
+
+    return res;
+};
+
+// returns only code
+jade.filters.doctest = function (html) {
+    return jade.filters.doctest_all(html, null, false);
+};
+
+if (process.argv[0] === "node") {
+    process.argv.shift();
+}
+
+var in_file = process.argv[1];
+var out_file = process.argv[2];
+
+var html = jade.renderFile(in_file, {
+    pretty: true
+});
+
+fs.writeFile(out_file, html, function (err) {
+    if (err) {
+        throw err;
+    }
+});

website/src/jade/home/_usage.jade

@@ -6,26 +6,13 @@ mixin example(name)
 
 
 +example("Load resources and process text")
-  pre.language-python: code
-    | from __future__ import unicode_literals, print_function
-    | from spacy.en import English
-    | nlp = English()
-    | doc = nlp('Hello, world. Here are two sentences.')
+  include:doctest_all ../../../tests/test_load_resources_and_process_text.txt
 
 +example("Get tokens and sentences")
-  pre.language-python: code
-    | token = doc[0]
-    | sentence = doc.sents.next()
-    | assert token is sentence[0]
-    | assert sentence.text == 'Hello, world.'
+  include:doctest ../../../tests/test_get_tokens_and_sentences.txt
 
 +example("Use integer IDs for any string")
-  pre.language-python: code
-    | hello_id = nlp.vocab.strings['Hello']
-    | hello_str = nlp.vocab.strings[hello_id]
-    | 
-    | assert token.orth  == hello_id  == 469755
-    | assert token.orth_ == hello_str == 'Hello'
+  include:doctest ../../../tests/test_use_interger_ids_for_any_strings.txt
 
 +example("Get and set string views and flags")
   pre.language-python: code

website/tests/test_get_tokens_and_sentences.txt

@@ -0,0 +1,8 @@
+>>> from spacy.en import English                        ###
+>>> nlp = English()                                     ###
+>>> doc = nlp(u'Hello, world. Here are two sentences.') ###
+>>>
+>>> token = doc[0]
+>>> sentence = doc.sents.next()
+>>> assert token is sentence[0]
+>>> assert sentence.text == 'Hello, world.'

website/tests/test_load_resources_and_process_text.txt

@@ -0,0 +1,5 @@
+>>> from spacy.en import English
+>>> nlp = English()
+>>> doc = nlp(u'Hello, world. Here are two sentences.')
+>>> print([s.string for s in doc.sents])
+[u'Hello, world. ', u'Here are two sentences.']

website/tests/test_use_interger_ids_for_any_strings.txt

@@ -0,0 +1,10 @@
+>>> from spacy.en import English                        ###
+>>> nlp = English()                                     ###
+>>> doc = nlp(u'Hello, world. Here are two sentences.') ###
+>>> token = doc[0]                                      ###
+>>>
+>>> hello_id = nlp.vocab.strings['Hello']
+>>> hello_str = nlp.vocab.strings[hello_id]
+>>>
+>>> assert token.orth  == hello_id  == 469755
+>>> assert token.orth_ == hello_str == 'Hello'