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1 files changed, 44 insertions, 0 deletions

diff --git a/node_modules/markdown-it/lib/rules_inline/balance_pairs.js b/node_modules/markdown-it/lib/rules_inline/balance_pairs.js
new file mode 100644
index 00000000..f2a52072
--- /dev/null
+++ b/node_modules/markdown-it/lib/rules_inline/balance_pairs.js
@@ -0,0 +1,44 @@
+// For each opening emphasis-like marker find a matching closing one
+//
+'use strict';
+
+
+module.exports = function link_pairs(state) {
+  var i, j, lastDelim, currDelim,
+      delimiters = state.delimiters,
+      max = state.delimiters.length;
+
+  for (i = 0; i < max; i++) {
+    lastDelim = delimiters[i];
+
+    if (!lastDelim.close) { continue; }
+
+    j = i - lastDelim.jump - 1;
+
+    while (j >= 0) {
+      currDelim = delimiters[j];
+
+      if (currDelim.open &&
+          currDelim.marker === lastDelim.marker &&
+          currDelim.end < 0 &&
+          currDelim.level === lastDelim.level) {
+
+        // typeofs are for backward compatibility with plugins
+        var odd_match = (currDelim.close || lastDelim.open) &&
+                        typeof currDelim.length !== 'undefined' &&
+                        typeof lastDelim.length !== 'undefined' &&
+                        (currDelim.length + lastDelim.length) % 3 === 0;
+
+        if (!odd_match) {
+          lastDelim.jump = i - j;
+          lastDelim.open = false;
+          currDelim.end  = i;
+          currDelim.jump = 0;
+          break;
+        }
+      }
+
+      j -= currDelim.jump + 1;
+    }
+  }
+};