Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gmiuJ

Test String

Code Generator

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "(class+)=[\"']?((?:.(?![\"']?\\s+(?:\\S+)=|[>\"']))+.)[\"']?"; final String string = "<div>\n" + " @if($beforeTableSlot)\n" + " <div class=\"mt-8\">\n" + " @include($beforeTableSlot)\n" + " </div>\n" + " @endif\n" + " <div class=\"relative\">\n" + " <div class=\"flex justify-between items-center mb-1\">\n" + " <div class=\"flex-grow h-10 flex items-center\">\n" + " @if($this->searchableColumns()->count())\n" + " <div class=\"w-96 flex rounded-lg shadow-sm\">\n" + " <div class=\"relative flex-grow focus-within:z-10\">\n" + " <div class=\"absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none\">\n" + " <svg class=\"h-5 w-5 text-gray-400\" viewBox=\"0 0 20 20\" stroke=\"currentColor\" fill=\"none\">\n" + " <path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z\" />\n" + " </svg>\n" + " </div>\n" + " <input wire:model.debounce.500ms=\"search\" class=\"w-full pl-10 py-3 text-sm leading-4 block rounded-md border-gray-300 shadow-sm focus:border-blue-300 focus:ring focus:ring-blue-200 focus:ring-opacity-50 focus:outline-none\" placeholder=\"{{__('Search in')}} {{ $this->searchableColumns()->map->label->join(', ') }}\" type=\"text\" />\n" + " <div class=\"absolute inset-y-0 right-0 pr-2 flex items-center\">\n" + " <button wire:click=\"$set('search', null)\" class=\"text-gray-300 hover:text-red-600 focus:outline-none\">\n" + " <x-icons.x-circle class=\"h-5 w-5 stroke-current\" />\n" + " </button>\n" + " </div>\n" + " </div>\n" + " </div>\n" + " @endif\n" + " </div>\n\n" + " <div class=\"flex items-center space-x-1\">\n" + " <x-icons.cog wire:loading class=\"h-9 w-9 animate-spin text-gray-400\" />\n\n" + " @if($exportable)\n" + " <div x-data=\"{ init() {\n" + " window.livewire.on('startDownload', link => window.open(link,'_blank'))\n" + " } }\" x-init=\"init\">\n" + " <button wire:click=\"export\" class=\"flex items-center space-x-2 px-3 border border-green-400 rounded-md bg-white text-green-500 text-xs leading-4 font-medium uppercase tracking-wider hover:bg-green-200 focus:outline-none\"><span>{{ __('Export') }}</span>\n" + " <x-icons.excel class=\"m-2\" /></button>\n" + " </div>\n" + " @endif\n\n" + " @if($hideable === 'select')\n" + " @include('datatables::hide-column-multiselect')\n" + " @endif\n" + " </div>\n" + " </div>\n\n" + " @if($hideable === 'buttons')\n" + " <div class=\"p-2 grid grid-cols-8 gap-2\">\n" + " @foreach($this->columns as $index => $column)\n" + " <button wire:click.prefetch=\"toggle('{{ $index }}')\" class=\"px-3 py-2 rounded text-white text-xs focus:outline-none\n" + " {{ $column['hidden'] ? 'bg-blue-100 hover:bg-blue-300 text-blue-600' : 'bg-blue-500 hover:bg-blue-800' }}\">\n" + " {{ $column['label'] }}\n" + " </button>\n" + " @endforeach\n" + " </div>\n" + " @endif\n\n" + " <div class=\"rounded-lg shadow-lg bg-white max-w-screen overflow-auto\">\n" + " <div class=\"rounded-lg @unless($this->hidePagination) rounded-b-none @endif\">\n" + " <div class=\"table align-middle min-w-full\">\n" + " @unless($this->hideHeader)\n" + " <div class=\"table-row divide-x divide-gray-200\">\n" + " @foreach($this->columns as $index => $column)\n" + " @if($hideable === 'inline')\n" + " @include('datatables::header-inline-hide', ['column' => $column, 'sort' => $sort])\n" + " @elseif($column['type'] === 'checkbox')\n" + " @unless($column['hidden'])\n" + " <div class=\"w-32 py-4 flex justify-center overflow-hidden align-top px-6 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider focus:outline-none\">\n" + " <div class=\"px-3 py-1 rounded @if(count($selected)) bg-orange-400 @else bg-gray-200 @endif text-white text-center\">\n" + " {{ count($selected) }}\n" + " </div>\n" + " </div>\n" + " @endunless\n" + " @else\n" + " @include('datatables::header-no-hide', ['column' => $column, 'sort' => $sort])\n" + " @endif\n" + " @endforeach\n" + " </div>\n\n" + " <div class=\"table-row divide-x divide-blue-200 bg-blue-100\">\n" + " @foreach($this->columns as $index => $column)\n" + " @if($column['hidden'])\n" + " @if($hideable === 'inline')\n" + " <div class=\"table-cell w-5 overflow-hidden align-top bg-blue-100\"></div>\n" + " @endif\n" + " @elseif($column['type'] === 'checkbox')\n" + " <div class=\"overflow-hidden align-top bg-blue-100 px-6 py-5 border-b border-gray-200 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider flex h-full flex-col items-center space-y-2 focus:outline-none\">\n" + " <div>SELECT ALL</div>\n" + " <div>\n" + " <input type=\"checkbox\" wire:click=\"toggleSelectAll\" @if(count($selected) === $this->results->total()) checked @endif class=\"form-checkbox mt-1 h-4 w-4 text-blue-600 transition duration-150 ease-in-out\" />\n" + " </div>\n" + " </div>\n" + " @else\n" + " <div class=\"table-cell overflow-hidden align-top\">\n" + " @isset($column['filterable'])\n" + " @if( is_iterable($column['filterable']) )\n" + " <div wire:key=\"{{ $index }}\">\n" + " @include('datatables::filters.select', ['index' => $index, 'name' => $column['label'], 'options' => $column['filterable']])\n" + " </div>\n" + " @else\n" + " <div wire:key=\"{{ $index }}\">\n" + " @include('datatables::filters.' . ($column['filterView'] ?? $column['type']), ['index' => $index, 'name' => $column['label']])\n" + " </div>\n" + " @endif\n" + " @endisset\n" + " </div>\n" + " @endif\n" + " @endforeach\n" + " </div>\n" + " @endif\n" + " @forelse($this->results as $result)\n" + " <div class=\"table-row p-1 divide-x divide-gray-100 {{ isset($result->checkbox_attribute) && in_array($result->checkbox_attribute, $selected) ? 'bg-orange-100' : ($loop->even ? 'bg-gray-100' : 'bg-gray-50') }}\">\n" + " @foreach($this->columns as $column)\n" + " @if($column['hidden'])\n" + " @if($hideable === 'inline')\n" + " <div class=\"table-cell w-5 overflow-hidden align-top\"></div>\n" + " @endif\n" + " @elseif($column['type'] === 'checkbox')\n" + " @include('datatables::checkbox', ['value' => $result->checkbox_attribute])\n" + " @else\n" + " <div class=\"px-6 py-2 whitespace-no-wrap text-sm leading-5 text-gray-900 table-cell @if($column['align'] === 'right') text-right @elseif($column['align'] === 'center') text-center @else text-left @endif\">\n" + " {!! $result->{$column['name']} !!}\n" + " </div>\n" + " @endif\n" + " @endforeach\n" + " </div>\n" + " @empty\n" + " <p class=\"p-3 text-lg text-teal-600\">\n" + " {{ __(\"There's Nothing to show at the moment\") }}\n" + " </p>\n" + " @endforelse\n" + " </div>\n" + " </div>\n" + " @unless($this->hidePagination)\n" + " <div class=\"rounded-lg rounded-t-none max-w-screen border-b border-gray-200 bg-white\">\n" + " <div class=\"p-2 sm:flex items-center justify-between\">\n" + " {{-- check if there is any data --}}\n" + " @if(count($this->results))\n" + " <div class=\"px-8 my-2 sm:my-0 flex items-center\">\n" + " <select name=\"perPage\" class=\"custom-select custom-select-sm form-control form-control-sm form-select block w-full leading-6 focus:outline-none\" wire:model=\"perPage\">\n" + " @foreach(config('livewire-datatables.per_page_options', [ 10, 25, 50, 100 ]) as $per_page_option)\n" + " <option value=\"{{ $per_page_option }}\">{{ $per_page_option }}</option>\n" + " @endforeach\n" + " <option value=\"99999999\">{{__('All')}}</option>\n" + " </select>\n" + " </div>\n\n" + " <div class=\"my-4 sm:my-0\">\n" + " <div class=\"lg:hidden\">\n" + " <span class=\"space-x-2\">{{ $this->results->links('datatables::tailwind-simple-pagination') }}</span>\n" + " </div>\n" + " <div class=\"hidden lg:flex justify-center\">\n" + " <span>{{ $this->results->links('datatables::tailwind-pagination') }}</span>\n" + " </div>\n" + " </div>\n\n" + " <div class=\"flex justify-end text-gray-600\">\n" + " {{__('Results')}} {{ $this->results->firstItem() }} - {{ $this->results->lastItem() }} {{__('of')}}\n" + " {{ $this->results->total() }}\n" + " </div>\n" + " @endif\n" + " </div>\n" + " </div>\n" + " @endif\n" + " </div>\n" + " </div>\n" + " @if($afterTableSlot)\n" + " <div class=\"mt-8\">\n" + " @include($afterTableSlot)\n" + " </div>\n" + " @endif\n" + "</div>\n"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE | Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE); final Matcher matcher = pattern.matcher(string); while (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

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 Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html