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1 files changed, 101 insertions, 0 deletions

diff --git a/packages/markdown-it-14.1.0/lib/rules_core/replacements.mjs b/packages/markdown-it-14.1.0/lib/rules_core/replacements.mjs
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+++ b/packages/markdown-it-14.1.0/lib/rules_core/replacements.mjs
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+// Simple typographic replacements
+//
+// (c) (C) → ©
+// (tm) (TM) → ™
+// (r) (R) → ®
+// +- → ±
+// ... → … (also ?.... → ?.., !.... → !..)
+// ???????? → ???, !!!!! → !!!, `,,` → `,`
+// -- → –, --- → —
+//
+
+// TODO:
+// - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
+// - multiplications 2 x 4 -> 2 × 4
+
+const RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/
+
+// Workaround for phantomjs - need regex without /g flag,
+// or root check will fail every second time
+const SCOPED_ABBR_TEST_RE = /\((c|tm|r)\)/i
+
+const SCOPED_ABBR_RE = /\((c|tm|r)\)/ig
+const SCOPED_ABBR = {
+  c: '©',
+  r: '®',
+  tm: '™'
+}
+
+function replaceFn (match, name) {
+  return SCOPED_ABBR[name.toLowerCase()]
+}
+
+function replace_scoped (inlineTokens) {
+  let inside_autolink = 0
+
+  for (let i = inlineTokens.length - 1; i >= 0; i--) {
+    const token = inlineTokens[i]
+
+    if (token.type === 'text' && !inside_autolink) {
+      token.content = token.content.replace(SCOPED_ABBR_RE, replaceFn)
+    }
+
+    if (token.type === 'link_open' && token.info === 'auto') {
+      inside_autolink--
+    }
+
+    if (token.type === 'link_close' && token.info === 'auto') {
+      inside_autolink++
+    }
+  }
+}
+
+function replace_rare (inlineTokens) {
+  let inside_autolink = 0
+
+  for (let i = inlineTokens.length - 1; i >= 0; i--) {
+    const token = inlineTokens[i]
+
+    if (token.type === 'text' && !inside_autolink) {
+      if (RARE_RE.test(token.content)) {
+        token.content = token.content
+          .replace(/\+-/g, '±')
+          // .., ..., ....... -> …
+          // but ?..... & !..... -> ?.. & !..
+          .replace(/\.{2,}/g, '…').replace(/([?!])…/g, '$1..')
+          .replace(/([?!]){4,}/g, '$1$1$1').replace(/,{2,}/g, ',')
+          // em-dash
+          .replace(/(^|[^-])---(?=[^-]|$)/mg, '$1\u2014')
+          // en-dash
+          .replace(/(^|\s)--(?=\s|$)/mg, '$1\u2013')
+          .replace(/(^|[^-\s])--(?=[^-\s]|$)/mg, '$1\u2013')
+      }
+    }
+
+    if (token.type === 'link_open' && token.info === 'auto') {
+      inside_autolink--
+    }
+
+    if (token.type === 'link_close' && token.info === 'auto') {
+      inside_autolink++
+    }
+  }
+}
+
+export default function replace (state) {
+  let blkIdx
+
+  if (!state.md.options.typographer) { return }
+
+  for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
+    if (state.tokens[blkIdx].type !== 'inline') { continue }
+
+    if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
+      replace_scoped(state.tokens[blkIdx].children)
+    }
+
+    if (RARE_RE.test(state.tokens[blkIdx].content)) {
+      replace_rare(state.tokens[blkIdx].children)
+    }
+  }
+}