1 files changed, 69 insertions, 0 deletions
diff --git a/packages/markdown-it-14.1.0/lib/rules_block/html_block.mjs b/packages/markdown-it-14.1.0/lib/rules_block/html_block.mjs
new file mode 100644
index 0000000..197520f
--- /dev/null
+++ b/packages/markdown-it-14.1.0/lib/rules_block/html_block.mjs
@@ -0,0 +1,69 @@
+// HTML block
+
+import block_names from '../common/html_blocks.mjs'
+import { HTML_OPEN_CLOSE_TAG_RE } from '../common/html_re.mjs'
+
+// An array of opening and corresponding closing sequences for html tags,
+// last argument defines whether it can terminate a paragraph or not
+//
+const HTML_SEQUENCES = [
+  [/^<(script|pre|style|textarea)(?=(\s|>|$))/i, /<\/(script|pre|style|textarea)>/i, true],
+  [/^<!--/,        /-->/,   true],
+  [/^<\?/,         /\?>/,   true],
+  [/^<![A-Z]/,     />/,     true],
+  [/^<!\[CDATA\[/, /\]\]>/, true],
+  [new RegExp('^</?(' + block_names.join('|') + ')(?=(\\s|/?>|$))', 'i'), /^$/, true],
+  [new RegExp(HTML_OPEN_CLOSE_TAG_RE.source + '\\s*$'),  /^$/, false]
+]
+
+export default function html_block (state, startLine, endLine, silent) {
+  let pos = state.bMarks[startLine] + state.tShift[startLine]
+  let max = state.eMarks[startLine]
+
+  // if it's indented more than 3 spaces, it should be a code block
+  if (state.sCount[startLine] - state.blkIndent >= 4) { return false }
+
+  if (!state.md.options.html) { return false }
+
+  if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false }
+
+  let lineText = state.src.slice(pos, max)
+
+  let i = 0
+  for (; i < HTML_SEQUENCES.length; i++) {
+    if (HTML_SEQUENCES[i][0].test(lineText)) { break }
+  }
+  if (i === HTML_SEQUENCES.length) { return false }
+
+  if (silent) {
+    // true if this sequence can be a terminator, false otherwise
+    return HTML_SEQUENCES[i][2]
+  }
+
+  let nextLine = startLine + 1
+
+  // If we are here - we detected HTML block.
+  // Let's roll down till block end.
+  if (!HTML_SEQUENCES[i][1].test(lineText)) {
+    for (; nextLine < endLine; nextLine++) {
+      if (state.sCount[nextLine] < state.blkIndent) { break }
+
+      pos = state.bMarks[nextLine] + state.tShift[nextLine]
+      max = state.eMarks[nextLine]
+      lineText = state.src.slice(pos, max)
+
+      if (HTML_SEQUENCES[i][1].test(lineText)) {
+        if (lineText.length !== 0) { nextLine++ }
+        break
+      }
+    }
+  }
+
+  state.line = nextLine
+
+  const token   = state.push('html_block', '', 0)
+  token.map     = [startLine, nextLine]
+  token.content = state.getLines(startLine, nextLine, state.blkIndent, true)
+
+  return true
+}