self host

1 files changed, 69 insertions, 0 deletions

diff --git a/packages/markdown-it-14.1.0/lib/rules_inline/escape.mjs b/packages/markdown-it-14.1.0/lib/rules_inline/escape.mjs
new file mode 100644
index 0000000..aa3728e
--- /dev/null
+++ b/packages/markdown-it-14.1.0/lib/rules_inline/escape.mjs
@@ -0,0 +1,69 @@
+// Process escaped chars and hardbreaks
+
+import { isSpace } from '../common/utils.mjs'
+
+const ESCAPED = []
+
+for (let i = 0; i < 256; i++) { ESCAPED.push(0) }
+
+'\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-'
+  .split('').forEach(function (ch) { ESCAPED[ch.charCodeAt(0)] = 1 })
+
+export default function escape (state, silent) {
+  let pos = state.pos
+  const max = state.posMax
+
+  if (state.src.charCodeAt(pos) !== 0x5C/* \ */) return false
+  pos++
+
+  // '\' at the end of the inline block
+  if (pos >= max) return false
+
+  let ch1 = state.src.charCodeAt(pos)
+
+  if (ch1 === 0x0A) {
+    if (!silent) {
+      state.push('hardbreak', 'br', 0)
+    }
+
+    pos++
+    // skip leading whitespaces from next line
+    while (pos < max) {
+      ch1 = state.src.charCodeAt(pos)
+      if (!isSpace(ch1)) break
+      pos++
+    }
+
+    state.pos = pos
+    return true
+  }
+
+  let escapedStr = state.src[pos]
+
+  if (ch1 >= 0xD800 && ch1 <= 0xDBFF && pos + 1 < max) {
+    const ch2 = state.src.charCodeAt(pos + 1)
+
+    if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) {
+      escapedStr += state.src[pos + 1]
+      pos++
+    }
+  }
+
+  const origStr = '\\' + escapedStr
+
+  if (!silent) {
+    const token = state.push('text_special', '', 0)
+
+    if (ch1 < 256 && ESCAPED[ch1] !== 0) {
+      token.content = escapedStr
+    } else {
+      token.content = origStr
+    }
+
+    token.markup = origStr
+    token.info   = 'escape'
+  }
+
+  state.pos = pos + 1
+  return true
+}