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  1. or download this
    perl -MYAPE::Regex::Explain -e " print YAPE::Regex::Explain->new(qr/$A
+RGV[0]/)->explain();" "^\s*[^\s\*=]+\s*="
  2. or download this
    The regular expression:

...
)                        end of grouping
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  3. or download this
    The regular expression:

...
----------------------------------------------------------------------
)                        end of grouping
----------------------------------------------------------------------
  4. or download this
    perl -MYAPE::Regex::Explain -e " print YAPE::Regex::Explain->new(qr/$A
+RGV[0]/)->explain();" "[^\s\*=]"
..
...
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  \w                       word characters (a-z, A-Z, 0-9, _)
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