Don't decrease bracket count below 0 when lexing regexpr

onetrueawk / awk

One true awk

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Closed silverneko closed 2 years ago

silverneko commented 2 years ago

Fix this error: $ ./a.out '/][[]/' ./a.out: non-terminated regular expression ][[]/... at source line 1 context is

/][[]/ <<<

Follow-up of #135