Invalid Regex Flag x

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#163 3 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript
Domain
compilers

Research direction

No file or test is named. Start by reproducing the shown RegExp literal in the compiler's JavaScript output path and trace how regex flags are validated; done means the AS3-only x flag produces a compile-time error while the g flag remains valid.

Written by the indexing model from the issue text.

Description

  •                           var regex : RegExp = /[\s*]+/gx;

  •                           var regex : RegExp = /[\s*]+/g;

The x flag is legal in AS3 but not in js, so the first line should probably yield be a compile time error.

Dominant language
Java
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Forks
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