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-rw-r--r--docs/bqn.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/bqn.js b/docs/bqn.js
index c21d800c..9862a1f4 100644
--- a/docs/bqn.js
+++ b/docs/bqn.js
@@ -474,7 +474,7 @@ let fmtErr = e => {
let to=i=>s.slice(0,i).join('').split('\n').map(l=>Array.from(l));
let ll=to(i), l=ll.length-1, j=ll[l].length, m=to()[l];
let k=1,o=i-j,cl=j; while (k<n&&(cl=is[k]-o)<m.length) k++;
- let ol=k<n; if (pair) { if (k%2) cl=m.length; else { k--; cl++; } }
+ let ol=k<n; if (pair) { if (k%2) cl=m.length; else { cl=is[--k]-o+1; } }
let c=Array(cl).fill(0); c[j]=1;
for (let h=1;h<k;h++) c[is[h]-o+(pair?h%2:0)]=1;
if (pair) for (let h=1;h<cl;h++) c[h]^=c[h-1];