Merge pull request #13 from syntax-tree/even-more

Even more

Author: sethvincent

handlers/comment.js

@@ -0,0 +1,7 @@
+'use strict';
+
+module.exports = comment;
+
+function comment(h, node) {
+  return h(node, 'html', '<!--' + node.value + '-->');
+}

handlers/index.js

@@ -1,9 +1,14 @@
 'use strict';
 
 exports.root = require('./root');
-
 exports.text = require('./text');
+exports.comment = require('./comment');
+
+exports.head = exports.math = exports.script = exports.style = exports.svg =
+  exports.template = exports.title = ignore;
 
+exports.ol = exports.ul = require('./list');
+exports.li = require('./list-item');
 exports.strong = exports.b = require('./strong');
 exports.em = exports.i = require('./emphasis');
 exports.del = exports.s = exports.strike = require('./delete');
@@ -19,3 +24,5 @@ exports.h1 = exports.h2 = exports.h3 =
   exports.h4 = exports.h5 = exports.h6 = require('./heading');
 
 exports.a = require('./link');
+
+function ignore() {}

handlers/list-item.js

@@ -0,0 +1,73 @@
+'use strict';
+
+module.exports = listItem;
+
+var is = require('hast-util-is-element');
+var all = require('../all');
+
+function listItem(h, node, parent) {
+  var children = node.children;
+  var tail = !parent || parent.children[parent.children.length - 1] === node;
+  var head = children[0];
+  var checked = null;
+  var loose = false;
+  var checkbox;
+  var grandchildren;
+  var content;
+
+  /* Check if this node starts with a checkbox. */
+  if (head && is(head, 'p')) {
+    grandchildren = head.children;
+    checkbox = grandchildren[0];
+
+    if (checkbox && is(checkbox, 'input') && checkbox.properties.type === 'checkbox') {
+      checked = Boolean(checkbox.properties.checked);
+    } else {
+      checkbox = null;
+    }
+  }
+
+  content = all(h, node);
+
+  /* Remove initial spacing if we previously found a checkbox. */
+  if (checked !== null) {
+    grandchildren = content[0] && content[0].children;
+    head = grandchildren && grandchildren[0];
+
+    if (head && head.type === 'text' && head.value.charAt(0) === ' ') {
+      /* Remove text with one space, or remove that one initial space */
+      if (head.value.length === 1) {
+        content[0].children = grandchildren.slice(1);
+      } else {
+        head.value = head.value.slice(1);
+      }
+    }
+  }
+
+  if (content.length > 1) {
+    /* More than one node is always loose. */
+    loose = true;
+  } else if (content.length === 1) {
+    head = content[0];
+
+    if (head.type === 'text') {
+      /* Wrap `text` in `paragraph` (always tight). */
+      content = [{type: 'paragraph', children: content}];
+      loose = false;
+    } else if (head.type === 'paragraph') {
+      /* One `paragraph`, always tight. Ensure it isn’t empty. */
+      loose = false;
+
+      if (head.children.length === 0) {
+        content = [];
+      }
+    }
+  }
+
+  /* Last list-item is never loose. */
+  if (tail) {
+    loose = false;
+  }
+
+  return h(node, 'listItem', {loose: loose, checked: checked}, content);
+}

handlers/list.js

@@ -0,0 +1,36 @@
+'use strict';
+
+module.exports = list;
+
+var has = require('hast-util-has-property');
+var all = require('../all');
+
+function list(h, node) {
+  var ordered = node.tagName === 'ol';
+  var start = null;
+  var loose = false;
+  var content;
+  var length;
+  var index;
+
+  if (ordered) {
+    start = has(node, 'start') ? node.properties.start : 1;
+  }
+
+  content = all(h, node);
+  length = content.length;
+  index = -1;
+
+  while (++index < length) {
+    if (content[index].loose === true) {
+      loose = true;
+      break;
+    }
+  }
+
+  return h(node, 'list', {
+    ordered: ordered,
+    start: start,
+    loose: loose
+  }, content);
+}

tests/fixtures/comment/index.html

@@ -0,0 +1,14 @@
+<!-- foo -->
+
+<p>Alpha.</p>
+
+<!-- -->
+
+<p>Bravo.</p>
+
+<!--
+  charlie
+  delta echo
+-->
+
+<p>Foxtrot.</p>

tests/fixtures/comment/index.json

@@ -0,0 +1,3 @@
+{
+  "fragment": true
+}

tests/fixtures/comment/index.md

@@ -0,0 +1,14 @@
+<!-- foo -->
+
+Alpha.
+
+<!-- -->
+
+Bravo.
+
+<!--
+  charlie
+  delta echo
+-->
+
+Foxtrot.

tests/fixtures/doctype/index.html

@@ -0,0 +1,2 @@
+<!doctype html>
+<p>Alpha</p>

tests/fixtures/doctype/index.md

@@ -0,0 +1 @@
+Alpha

tests/fixtures/head/index.html

@@ -0,0 +1,3 @@
+<!doctype html>
+<head><noscript>Alpha</noscript></head>
+<p>Bravo</p>