fix #442 - Prevent crash when cursor is in the middle of a UTF sequence #443
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ghost
| // since later there's a non-nothrow call to `toUpper` | ||
| import std.utf : validate, UTFException; | ||
| try validate(partial); | ||
| catch (UTFException) partial = ""; |
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I think that phobos misses a nothrow UTF validator. Using try catch for this is really horrible.
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Agreed. I also miss a way to process strings in nothrow e.g. by replacing with the invalid UTF char - though there was a DIP once: https://wiki.dlang.org/DIP76
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FYI: I recently hacked a toValidUTF method for run.dlang.io, because of similar problems.
Though it's really ugly (performance-wise), but Phobos is really lacking in this regard :/
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Though it's really ugly (performance-wise),
Thinking about it - maybe we should use this approach in the catch(UTFException) case? silently setting partial to an empty string if there's just one invalid UTF symbol looks a bit like patching over the actual problem.
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The actual problem comes from the IDE in first place and in dcd we just avoid a crash.
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