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When I code test ruby script, it keeps output "(B[m" before my other output, even thought I just have single line puts statement.

Just as follow:

enter image description here

See the "(B[m" before my output text " test". It's really annoying me for a long while. Any help will be preciated!


Update:

It occurs at CodeRunner version 1.3.1, and in latest version(2.2.1) I also get a "(B" there!

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It looks like a language encoding issue. Check that the space characters at the beginning of the string are actually half-width space, and not Japanese full-width spaces.

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