Missing Thai break data results in crash in ParagraphLayout

Description

Absent a icudt53l-brkitr data file, BreakIterator::createLineInstance() returns NULL which ParagraphLayout dereferences unconditionally at line 999 (as fBreakIterator, in previousBreak()), crashing the process. IWBN to degrade more gracefully: warn about lack of Thai breaking and don't crash, or even allow the client to say they don't care about Thai breaking and don't even try for this.

A workaround is to give ParagraphLayout::nextLine() an argument of 0, which prevents breaking.

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Markus Scherer 
July 22, 2020 at 11:32 PM

tracReporter=fischman

UnicodeBot 
June 30, 2018 at 11:42 PM

Trac Comment 6 by —2015-10-07T17:35:44.610Z

So, perhaps MissingResourceError on the constructor? That mightr be heavyweight.

Or perhaps missing resource error on a subsequent call.

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Created June 28, 2018 at 5:23 PM
Updated January 13, 2021 at 11:16 PM