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node_modules/mdast-util-to-markdown/lib/util/format-code-as-indented.js

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+/**
+ * @import {State} from 'mdast-util-to-markdown'
+ * @import {Code} from 'mdast'
+ */
+
+/**
+ * @param {Code} node
+ * @param {State} state
+ * @returns {boolean}
+ */
+export function formatCodeAsIndented(node, state) {
+  return Boolean(
+    state.options.fences === false &&
+      node.value &&
+      // If there’s no info…
+      !node.lang &&
+      // And there’s a non-whitespace character…
+      /[^ \r\n]/.test(node.value) &&
+      // And the value doesn’t start or end in a blank…
+      !/^[\t ]*(?:[\r\n]|$)|(?:^|[\r\n])[\t ]*$/.test(node.value)
+  )
+}