Add support for Schema.org/Recipe

java/org/chromium/distiller/MarkupGenerator.java

+package org.chromium.distiller;
+
+import java.util.List;
+
+/**
+ * This class is used to unify the Markup generation when producing the
+ * HTML output for Structured Data, reducing the coupling between
+ * the representation of the data and the Markup generation.
+ */
+public class MarkupGenerator {
+
+    public static String generateMarkup(
+            SchemaOrgParser.RecipeItem.Recipe recipe) {
+        return generateImage(recipe.imageSrc) +
+            createElement("p", "Author: ", recipe.author) +

[wychen, 2016/03/14 22:58:42]

L10n issues again. It would look weird on non-English recipe pages.

+            createElement("p", "Creator: ", recipe.creator) +
+            createElement("p", "Description: ", recipe.description) +
+            createElement("p", "Serves: ", recipe.recipeYield) +
+            createElement("p", "Prep time: ", recipe.prepTime) +
+            createElement("p", "Cook time: ", recipe.cookTime) +
+            createElement("p", "Total time: ", recipe.totalTime) +
+            generateList("Ingredients: ", recipe.recipeIngredient,
+                    false) +
+            generateList("Instructions: <br />",
+                    recipe.recipeInstructions, false);
+    }
+
+    public static String generateMarkup(
+            SchemaOrgParser.PersonItem.Person person) {
+        return createElement("span", person.name);
+    }
+
+    private static String generateList(String name, List<String> value,
+                                       boolean ordered) {
+        if (value.size() == 1) {
+            return createElement("p", name, value.get(0));
+        }
+        String output = "";
+        for (String s : value) {
+            output += createElement("li", s);
+        }
+        return name + createElement(ordered ? "ol" : "ul", output);
+    }
+
+    private static String createElement(String tag, String name,
+                                        String value) {
+        String output = "";
+        if (!value.isEmpty()) {
+            output = format(createElement(tag, name + value));
+        }
+        return output;
+    }
+
+    private static String createElement(String tag, String value) {
+        return "<" + tag + ">" + value + "</" + tag + ">";
+    }
+
+    private static String generateImage(String src) {
+        String output = "";
+        if (!src.isEmpty()) {
+            output = "<img src='" + src + "' />";
+        }
+        return output;
+    }
+
+    /**
+     * Format a string replacing the new line char to
+     * <br> tag. It also detects when 2 paragraphs are concatenated
+     * together, splitting them by a <br> tag.
+     */
+    private static String format(String string) {
+        return string.trim()
+                .replaceAll("([.])([A-Z]{1}[a-z]+)", "$1<br />$2")
+                .replaceAll("[\n]+[\\s]*", "<br />");
+    }
+}