diff options
Diffstat (limited to 'src/parseTools.js')
| -rw-r--r-- | src/parseTools.js | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/parseTools.js b/src/parseTools.js index e3734e0e..07855c70 100644 --- a/src/parseTools.js +++ b/src/parseTools.js @@ -1692,9 +1692,9 @@ function processMathop(item) { with(item) { // TODO: Use this in analyzer, possibly also in jsifier function walkInterdata(item, pre, post, obj) { if (!item || !item.intertype) return false; - if (pre(item, obj)) return true; + if (pre && pre(item, obj)) return true; var originalObj = obj; - if (obj.replaceWith) obj = obj.replaceWith; // allow pre to replace the object we pass to all its children + if (obj && obj.replaceWith) obj = obj.replaceWith; // allow pre to replace the object we pass to all its children if (item.value && walkInterdata(item.value, pre, post, obj)) return true; var i; for (i = 1; i <= 4; i++) { @@ -1712,7 +1712,7 @@ function walkInterdata(item, pre, post, obj) { if (walkInterdata(box, pre, post, obj)) return true; } } - return post(item, originalObj, obj); + return post && post(item, originalObj, obj); } function parseBlockAddress(segment) { |