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Test regular expressions against text with real-time match highlighting, capture group inspection, and common pattern presets.
.Any character\dDigit [0-9]\wWord char [a-zA-Z0-9_]\sWhitespace\bWord boundary^Start of string$End of string*0 or more+1 or more?0 or 1{n,m}n to m times[abc]Character class(…)Capture group(?:…)Non-capturing group