planning

node_modules/remark-stringify/lib/util/enclose-title.js

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+'use strict'
+
+module.exports = enclose
+
+var quotationMark = '"'
+var apostrophe = "'"
+
+// There is currently no way to support nested delimiters across Markdown.pl,
+// CommonMark, and GitHub (RedCarpet).  The following code supports Markdown.pl
+// and GitHub.
+// CommonMark is not supported when mixing double- and single quotes inside a
+// title.
+function enclose(title) {
+  var delimiter =
+    title.indexOf(quotationMark) === -1 ? quotationMark : apostrophe
+  return delimiter + title + delimiter
+}