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WebComponent support and activate nested parsing #413

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WebComponent support and activate nested parsing #413

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44eb97f
feat(htmlblock): :sparkles: make allowed tags configurable
Dec 14, 2021
45fca7d
fix(htmlblock): :bug: Make htmlblock respect parent block indentation
Dec 14, 2021
bad35f4
feat(htmlblock): :sparkles: Added support for custom elements
Dec 14, 2021
c1c00a6
fix(htmlblock): :green_heart: Fix illegal assignment build error
Dec 15, 2021
401158b
feat(htmlblock): :memo: Update readme about the new filter feature
Dec 15, 2021
a061387
fix(htmlblock): :bug: Fixed custom htmlblocks not recognized
Dec 15, 2021
31c073d
feat(htmlblock): :sparkles: Add support for regular expressions
Dec 15, 2021
746b1e0
fix(htmlblock): :bug: Fix recognition of default settings
Dec 15, 2021
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5 changes: 5 additions & 0 deletions .vscode/settings.json
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
{
"conventionalCommits.scopes": [
"htmlblock"
]
}
59 changes: 58 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,64 @@ var md = new Remarkable({

// Highlighter function. Should return escaped HTML,
// or '' if the source string is not changed
highlight: function (/*str, lang*/) { return ''; }
highlight: function (/*str, lang*/) { return ''; },

// Allow / Disallow html tags that are available for parsing HTML
htmlAllowedTags: [
/^my-.*/,
'my-web-component', // Custom-tag

'article',
'aside',
'button',
'blockquote',
'body',
'canvas',
'caption',
'col',
'colgroup',
'dd',
'div',
'dl',
'dt',
'embed',
'fieldset',
'figcaption',
'figure',
'footer',
'form',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'header',
'hgroup',
'hr',
'iframe',
'li',
'map',
'object',
'ol',
'output',
'p',
'pre',
'progress',
'script',
'section',
'style',
'table',
'tbody',
'td',
'textarea',
'tfoot',
'th',
'tr',
'thead',
'ul',
'video'
]
});

console.log(md.render('# Remarkable rulezz!'));
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31 changes: 26 additions & 5 deletions lib/rules_block/htmlblock.js
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Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
// HTML block

import block_names from '../common/html_blocks';
import html_blocks from '../common/html_blocks';


var HTML_TAG_OPEN_RE = /^<([a-zA-Z]{1,15})[\s\/>]/;
var HTML_TAG_CLOSE_RE = /^<\/([a-zA-Z]{1,15})[\s>]/;
var HTML_TAG_OPEN_RE = /^<([a-zA-Z_-]{1,15})[\s\/>]/;
var HTML_TAG_CLOSE_RE = /^<\/([a-zA-Z_-]{1,15})[\s>]/;

function isLetter(ch) {
/*eslint no-bitwise:0*/
Expand All @@ -20,9 +20,19 @@ export default function htmlblock(state, startLine, endLine, silent) {

pos += shift;

let allowedBlocks = html_blocks;

if (!state.options.html) { return false; }

if (shift > 3 || pos + 2 >= max) { return false; }
if (!Array.isArray(allowedBlocks)) {
allowedBlocks = Object.keys(allowedBlocks)
}

if (Array.isArray(state.options.htmlAllowedTags)) {
allowedBlocks = state.options.htmlAllowedTags;
}

if (shift > 3 + state.blkIndent || pos + 2 >= max) { return false; }

if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }

Expand All @@ -44,8 +54,19 @@ export default function htmlblock(state, startLine, endLine, silent) {
match = state.src.slice(pos, max).match(HTML_TAG_OPEN_RE);
if (!match) { return false; }
}

// Make sure tag name is valid
if (block_names[match[1].toLowerCase()] !== true) { return false; }
const tagToCheck = match[1].toLowerCase();
if (!allowedBlocks.includes(tagToCheck)) {
const regExpressions = allowedBlocks
.filter(possibleExpression => typeof possibleExpression !== 'string')
.filter(possibleExpression => !!possibleExpression.test);

if (!regExpressions.some(x => x.test(tagToCheck))) {
return false;
}
}

if (silent) { return true; }

} else {
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