characterSubrange returns a single character range for an empty range 
https://bugs.webkit.org/show_bug.cgi?id=159063
Summary characterSubrange returns a single character range for an empty range
Alexey Proskuryakov
Reported 2016-06-23 11:06:08 PDT
As seen in bug 159062, DictionaryLookup::rangeAtHitTestResult returns a 1-character string when -[LULookupDefinitionModule tokenRangeForString:range:options:] returns (0, 0). This seems like a pretty crazy bug deep inside editing code - why do we do this? We pass (0, 0) to TextIterator::subrange, then it goes to characterSubrange, and it becomes 1-character when routed through a character iterator.
Attachments
Add attachment proposed patch, testcase, etc.
Note You need to log in before you can comment on or make changes to this bug.