mruby/mruby — pull request #1430 by carsonmcdonald (2013-08-02 21:49:00+00:00)
Title: End loop if nextc is -1

Found that the following went into a never ending loop when using mirb when compiled with readline support on OSX:

```
"testing" =~ /testing/
```

ISALPHA contains isalpha and that may return true if LOCAL_ALL is not set to C.