Jonas Jenwald 374d074f6e Add stricter validation in Catalog.readPageLabels
The current PageLabel dictionary validation code won't catch some (unlikely) forms of corruption. For example: a `Type`/`S` entry being `null`/`0`/empty string, a `P`/`St` entry being `null`/`0`.

Please note: I'm not aware of any bugs caused by the old code, but I've had this patch sitting locally for some time and figured it couldn't hurt to submit it.
2018-03-21 14:36:05 +01:00
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2012-10-29 14:08:52 -04:00
2018-03-08 18:27:30 +01:00