re = /\b(?:int|float|String|char|double|long)\b\s+([^=;]+)/m
str = ' int a = 100;
float b = 110;
String c = "Hello World";
double a, b, c = 0;
'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html