self host

1 files changed, 123 insertions, 0 deletions

diff --git a/packages/markdown-it-14.1.0/lib/rules_inline/state_inline.mjs b/packages/markdown-it-14.1.0/lib/rules_inline/state_inline.mjs
new file mode 100644
index 0000000..80cb3c5
--- /dev/null
+++ b/packages/markdown-it-14.1.0/lib/rules_inline/state_inline.mjs
@@ -0,0 +1,123 @@
+// Inline parser state
+
+import Token from '../token.mjs'
+import { isWhiteSpace, isPunctChar, isMdAsciiPunct } from '../common/utils.mjs'
+
+function StateInline (src, md, env, outTokens) {
+  this.src = src
+  this.env = env
+  this.md = md
+  this.tokens = outTokens
+  this.tokens_meta = Array(outTokens.length)
+
+  this.pos = 0
+  this.posMax = this.src.length
+  this.level = 0
+  this.pending = ''
+  this.pendingLevel = 0
+
+  // Stores { start: end } pairs. Useful for backtrack
+  // optimization of pairs parse (emphasis, strikes).
+  this.cache = {}
+
+  // List of emphasis-like delimiters for current tag
+  this.delimiters = []
+
+  // Stack of delimiter lists for upper level tags
+  this._prev_delimiters = []
+
+  // backtick length => last seen position
+  this.backticks = {}
+  this.backticksScanned = false
+
+  // Counter used to disable inline linkify-it execution
+  // inside <a> and markdown links
+  this.linkLevel = 0
+}
+
+// Flush pending text
+//
+StateInline.prototype.pushPending = function () {
+  const token = new Token('text', '', 0)
+  token.content = this.pending
+  token.level = this.pendingLevel
+  this.tokens.push(token)
+  this.pending = ''
+  return token
+}
+
+// Push new token to "stream".
+// If pending text exists - flush it as text token
+//
+StateInline.prototype.push = function (type, tag, nesting) {
+  if (this.pending) {
+    this.pushPending()
+  }
+
+  const token = new Token(type, tag, nesting)
+  let token_meta = null
+
+  if (nesting < 0) {
+    // closing tag
+    this.level--
+    this.delimiters = this._prev_delimiters.pop()
+  }
+
+  token.level = this.level
+
+  if (nesting > 0) {
+    // opening tag
+    this.level++
+    this._prev_delimiters.push(this.delimiters)
+    this.delimiters = []
+    token_meta = { delimiters: this.delimiters }
+  }
+
+  this.pendingLevel = this.level
+  this.tokens.push(token)
+  this.tokens_meta.push(token_meta)
+  return token
+}
+
+// Scan a sequence of emphasis-like markers, and determine whether
+// it can start an emphasis sequence or end an emphasis sequence.
+//
+//  - start - position to scan from (it should point at a valid marker);
+//  - canSplitWord - determine if these markers can be found inside a word
+//
+StateInline.prototype.scanDelims = function (start, canSplitWord) {
+  const max = this.posMax
+  const marker = this.src.charCodeAt(start)
+
+  // treat beginning of the line as a whitespace
+  const lastChar = start > 0 ? this.src.charCodeAt(start - 1) : 0x20
+
+  let pos = start
+  while (pos < max && this.src.charCodeAt(pos) === marker) { pos++ }
+
+  const count = pos - start
+
+  // treat end of the line as a whitespace
+  const nextChar = pos < max ? this.src.charCodeAt(pos) : 0x20
+
+  const isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar))
+  const isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar))
+
+  const isLastWhiteSpace = isWhiteSpace(lastChar)
+  const isNextWhiteSpace = isWhiteSpace(nextChar)
+
+  const left_flanking =
+    !isNextWhiteSpace && (!isNextPunctChar || isLastWhiteSpace || isLastPunctChar)
+  const right_flanking =
+    !isLastWhiteSpace && (!isLastPunctChar || isNextWhiteSpace || isNextPunctChar)
+
+  const can_open  = left_flanking  && (canSplitWord || !right_flanking || isLastPunctChar)
+  const can_close = right_flanking && (canSplitWord || !left_flanking  || isNextPunctChar)
+
+  return { can_open, can_close, length: count }
+}
+
+// re-export Token class to use in block rules
+StateInline.prototype.Token = Token
+
+export default StateInline