Add base for page parsing

lib/backbone/page.js

@@ -1,4 +1,8 @@
+var _ = require('lodash');
 var path = require('path');
+var parsers = require('gitbook-parsers');
+
+var error = require('../utils/error');
 
 /*
 A page represent a parsable file in the book (Markdown, Asciidoc, etc)
@@ -6,28 +10,75 @@ A page represent a parsable file in the book (Markdown, Asciidoc, etc)
 
 function Page(book, filename) {
     if (!(this instanceof Page)) return new Page(book, filename);
+    var extension;
+    _.bindAll(this);
 
     this.book = book;
-    this.filename = filename;
+    this.log = this.book.log;
+
+    this.content = '';
+    this.path = filename;
+    this.rawPath = this.book.resolve(filename);
+
+    // Can we parse it?
+    extension = path.extname(this.path);
+    this.parser = parsers.get(extension);
+    if (!this.parser) throw error.ParsingError(new Error('Can\'t parse file "'+this.path+'"'));
+
+    this.type = this.parser.name;
 }
 
 // Return the filename of the page with another extension
 // "README.md" -> "README.html"
 Page.prototype.withExtension = function(ext) {
     return path.join(
-        path.dirname(this.filename),
-        path.basename(this.filename, path.extname(this.filename)) + ext
+        path.dirname(this.path),
+        path.basename(this.path, path.extname(this.path)) + ext
     );
 };
 
+// Update content of the page
+Page.prototype.update = function(content) {
+    this.content = content;
+};
+
 // Read the page as a string
 Page.prototype.read = function() {
-    return this.book.readFile(this.filename);
+    return this.book.readFile(this.path)
+        .then(this.update);
 };
 
 // Parse the page and return its content
 Page.prototype.parse = function() {
-    return this.read();
+    var that = this;
+
+    this.log.debug.ln('start parsing file', this.path);
+
+    return this.read()
+
+    // Pre-process page with parser
+    .then(function() {
+        return that.parser.page.prepare(that.content)
+        .then(that.update);
+    })
+
+    // Render template
+    .then(function() {
+        return that.book.template.renderString(that.content, {
+            file: {
+                path: that.path,
+                mtime: 0 //todo: stat.mtime
+            }
+        }, {
+            file: that.path
+        })
+        .then(that.update);
+    })
+
+    // Render markup
+    .then(function() {
+        return that.parser.page(that.content);
+    });
 };
 
 

lib/book.js

@@ -10,6 +10,7 @@ var Glossary = require('./backbone/glossary');
 var Summary = require('./backbone/summary');
 var Langs = require('./backbone/langs');
 var Page = require('./backbone/page');
+var TemplateEngine = require('./template');
 var pathUtil = require('./utils/path');
 var error = require('./utils/error');
 var Promise = require('./utils/promise');
@@ -89,6 +90,9 @@ function Book(opts) {
     // List of page in the book
     this.pages = {};
 
+    // Templating engine
+    this.template = new TemplateEngine(this);
+
     _.bindAll(this);
 }
 

lib/template/index.js

@@ -292,8 +292,7 @@ TemplateEngine.prototype.applyBlock = function(name, blk, ctx) {
 // Render a string
 TemplateEngine.prototype.renderString = function(content, context, options) {
     options = _.defaults(options || {}, {
-        path: null,
-        type: null
+        path: null
     });
 
     // Setup context for the template
@@ -315,9 +314,9 @@ TemplateEngine.prototype.renderString = function(content, context, options) {
     if (options.path) {
         options.path = this.book.resolve(options.path);
     }
-    if (!options.type && options.path) {
+    if (!context.type && options.path) {
         var parser = parsers.get(path.extname(options.path));
-        options.type = parser? parser.name : null;
+        context.type = parser? parser.name : null;
     }
 
     // Replace shortcuts

test/output-json.js

@@ -1,11 +1,21 @@
 var mock = require('./mock');
 
 describe('JSON Output', function() {
-    it('should correctly generate a default book', function() {
-        return mock.outputDefaultBook('json')
-        .then(function(output) {
+
+    describe('Sample book', function() {
+        var output;
+
+        before(function() {
+            return mock.outputDefaultBook('json')
+            .then(function(_output) {
+                output = _output;
+            });
+        });
+
+        it('should correctly generate a README.json', function() {
             output.should.have.file('README.json');
         });
+
     });
 });