Tabular quiz

3 files changed, 51 insertions, 0 deletions

diff --git a/lib/parse/lex.js b/lib/parse/lex.js
index cec6047..b77b844 100644
--- a/lib/parse/lex.js
+++ b/lib/parse/lex.js
@@ -34,6 +34,22 @@ function sectionType(nodes, idx) {
         return 'exercise';
     }
 
+    if (nodes.length > 2) {
+        var nonBlockquoteNodes = nodes.slice(nodes[0].type === 'paragraph' ? 1 : 0);
+        nonBlockquoteNodes.splice(_.findIndex(nonBlockquoteNodes, { type: 'blockquote_start' }),
+                                  _.findIndex(nonBlockquoteNodes, { type: 'blockquote_end' }));
+
+        if (nonBlockquoteNodes.length === 2) {
+            if (_.every(nonBlockquoteNodes, { type: 'table' })) {
+                if (_.every(nonBlockquoteNodes[0].cells, function(row) {
+                  return _.every(row.slice(1), function(cell) { return cell === "( )"; });
+                })) {
+                  return 'quiz';
+                }
+            }
+        }
+    }
+
     return 'normal';
 }
 
diff --git a/lib/parse/page.js b/lib/parse/page.js
index 3479c85..4e26455 100644
--- a/lib/parse/page.js
+++ b/lib/parse/page.js
@@ -36,6 +36,10 @@ function render(section, _options) {
     return marked.parser(section, options);
 }
 
+function quizNodesTest(node) {
+  return node.type === 'table' || node.type === 'list';
+}
+
 function parsePage(src, options) {
     options = options || {};
 
@@ -76,6 +80,20 @@ function parsePage(src, options) {
                     context: codeNodes[3] ? codeNodes[3].text : null,
                 }
             };
+        } else if (section.type === 'quiz') {
+            var nonQuizNodes = _.reject(section, quizNodesTest);
+            var quizNodes = _.filter(section, quizNodesTest);
+            var feedback = nonQuizNodes.splice(_.findIndex(nonQuizNodes, { type: 'blockquote_start' }), _.findIndex(nonQuizNodes, { type: 'blockquote_end' }));
+            return {
+                id: section.id,
+                type: section.type,
+                content: render(nonQuizNodes),
+                quiz: {
+                    base: render([quizNodes[0]]),
+                    solution: render([quizNodes[1]]),
+                    feedback: render(feedback.slice(1, feedback.length - 1))
+                }
+            };
         }
 
         // Render normal pages
diff --git a/lib/parse/renderer.js b/lib/parse/renderer.js
index 6b45a22..ba543ee 100644
--- a/lib/parse/renderer.js
+++ b/lib/parse/renderer.js
@@ -5,6 +5,7 @@ var path = require('path');
 
 var marked = require('marked');
 
+var rendererId = 0;
 
 function GitBookRenderer(options, extra_options) {
     if(!(this instanceof GitBookRenderer)) {
@@ -13,6 +14,8 @@ function GitBookRenderer(options, extra_options) {
     GitBookRenderer.super_.call(this, options);
 
     this._extra_options = extra_options;
+    this.quizRowId = 0;
+    this.id = rendererId++;
 }
 inherits(GitBookRenderer, marked.Renderer);
 
@@ -83,6 +86,20 @@ GitBookRenderer.prototype.image = function(href, title, text) {
     return GitBookRenderer.super_.prototype.image.call(this, _href, title, text);
 };
 
+GitBookRenderer.prototype.tablerow = function(content) {
+    this.quizRowId += 1;
+    return GitBookRenderer.super_.prototype.tablerow(content);
+};
+
+GitBookRenderer.prototype.tablecell = function(content, flags) {
+    var radioContent = content;
+    if (content === "( )") {
+        radioContent = "<input type='radio' name='quiz-row-" + this.id + "-" + this.quizRowId + "'/>";
+    } else if (content === "(x)") {
+        radioContent = "<input type='radio' name='quiz-row-" + this.id + "-" + this.quizRowId + "' checked/>";
+    }
+    return GitBookRenderer.super_.prototype.tablecell(radioContent, flags);
+};
 
 // Exports
 module.exports = GitBookRenderer;