Import gitbook-markdown

4 files changed, 175 insertions, 0 deletions

diff --git a/packages/gitbook-markdown/src/index.js b/packages/gitbook-markdown/src/index.js
new file mode 100644
index 0000000..694d8c8
--- /dev/null
+++ b/packages/gitbook-markdown/src/index.js
@@ -0,0 +1,10 @@
+const HTMLParser = require('gitbook-html');
+
+const toHTML = require('./toHTML');
+const toMarkdown = require('./toMarkdown');
+const page = require('./page');
+
+module.exports = HTMLParser.createParser(toHTML, toMarkdown);
+
+// Add the custom page escaping
+module.exports.page.prepare = page.prepare;
diff --git a/packages/gitbook-markdown/src/page.js b/packages/gitbook-markdown/src/page.js
new file mode 100644
index 0000000..70da324
--- /dev/null
+++ b/packages/gitbook-markdown/src/page.js
@@ -0,0 +1,74 @@
+const { State } = require('markup-it');
+const markdown = require('markup-it/lib/markdown');
+
+const RAW_START = '{% raw %}';
+const RAW_END   = '{% endraw %}';
+
+/**
+ * Escape a code block's content using raw blocks
+ *
+ * @param {String}
+ * @return {String}
+ */
+function escape(str) {
+    return RAW_START + str + RAW_END;
+}
+
+
+/**
+ * Add templating "raw" to code blocks to
+ * avoid nunjucks processing their content.
+ *
+ * @param {String} src
+ * @return {String}
+ */
+function preparePage(src) {
+    let levelRaw = 0;
+
+    const fromMD = State.create(markdown);
+    const document = fromMD.deserializeToDocument(src);
+
+    document = document.mapDescendants((node) => {
+
+    });
+
+
+    const content  = markdown.toContent(src, {
+        math:     true,
+        template: true
+    });
+
+    const textMarkdown = markdown.toText(content, {
+        annotate(state, raw, token) {
+            const tokenType = token.getType();
+
+            if (tokenType === MarkupIt.ENTITIES.TEMPLATE) {
+                const type = token.getData().get('type');
+                const expr = token.getAsPlainText();
+
+                if (type === 'expr') {
+                    if (expr === 'raw') {
+                        levelRaw = levelRaw + 1;
+                    } else if (expr == 'endraw') {
+                        levelRaw = 0;
+                    }
+                }
+            }
+
+            if (
+                (tokenType === MarkupIt.BLOCKS.CODE || tokenType === MarkupIt.STYLES.CODE)
+                && levelRaw === 0
+            ) {
+                return escape(raw);
+            }
+
+            return raw;
+        }
+    });
+
+    return textMarkdown;
+}
+
+module.exports = {
+    prepare: preparePage
+};
diff --git a/packages/gitbook-markdown/src/toHTML.js b/packages/gitbook-markdown/src/toHTML.js
new file mode 100644
index 0000000..e887e11
--- /dev/null
+++ b/packages/gitbook-markdown/src/toHTML.js
@@ -0,0 +1,35 @@
+const { State } = require('markup-it');
+const markdown = require('markup-it/lib/markdown');
+const html = require('markup-it/lib/html');
+
+/**
+ * Convert Markdown block to HTML
+ *
+ * @param {String} src (markdown)
+ * @return {String} (html)
+ */
+function convertMdToHTMLBlock(src) {
+    const fromMD = State.create(markdown);
+    const document = fromMD.deserializeToDocument(src);
+
+    const toHTML = State.create(html);
+    return toHTML.serializeDocument(document);
+}
+
+/**
+ * Convert Markdown inline to HTML
+ *
+ * @param {String} src (markdown)
+ * @return {String} (html)
+ */
+function convertMdToHTMLInline(src) {
+    const content  = markdown.toInlineContent(src);
+    const textHtml = html.toInlineText(content);
+
+    return textHtml;
+}
+
+module.exports = {
+    block: convertMdToHTMLBlock,
+    inline: convertMdToHTMLInline
+};
diff --git a/packages/gitbook-markdown/src/toMarkdown.js b/packages/gitbook-markdown/src/toMarkdown.js
new file mode 100644
index 0000000..5b8deee
--- /dev/null
+++ b/packages/gitbook-markdown/src/toMarkdown.js
@@ -0,0 +1,56 @@
+const escape = require('markdown-escape');
+
+// Return N time a string
+function ns(s, n) {
+    return Array(n + 1).join(s);
+}
+
+/*
+ * This module provides markup rules for gitbook-html
+ * These rules are being used to generate SUMMARY/GLOSSARY/LANGS
+ */
+module.exports = {
+    onText(text) {
+        return escape(text);
+    },
+
+    onTitleStart(level) {
+        return ns('#', level) + ' ';
+    },
+    onTitleEnd(level) {
+        return this.onBL();
+    },
+
+    onParagraphStart() {
+        return this.onSection();
+    },
+    onParagraphEnd() {
+        return this.onSection();
+    },
+
+    onLinkStart() {
+        return '[';
+    },
+    onLinkEnd(href) {
+        return '](' + href + ')';
+    },
+
+    onListStart(level) {
+        return '';
+    },
+    onListEnd() {
+        return '';
+    },
+
+    onListItemStart(level) {
+        return ns(' ', level * 4) + '* ';
+    },
+    onListItemEnd() {
+        return '';
+    },
+
+    onHR() {
+        return '-----';
+    }
+};
+