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

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"(class+)=[""']?((?:.(?![""']?\s+(?:\S+)=|[>""']))+.)[""']?"; string input = @"<div> @if($beforeTableSlot) <div class=""mt-8""> @include($beforeTableSlot) </div> @endif <div class=""relative""> <div class=""flex justify-between items-center mb-1""> <div class=""flex-grow h-10 flex items-center""> @if($this->searchableColumns()->count()) <div class=""w-96 flex rounded-lg shadow-sm""> <div class=""relative flex-grow focus-within:z-10""> <div class=""absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none""> <svg class=""h-5 w-5 text-gray-400"" viewBox=""0 0 20 20"" stroke=""currentColor"" fill=""none""> <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"" /> </svg> </div> <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')}} {{ $this->searchableColumns()->map->label->join(', ') }}"" type=""text"" /> <div class=""absolute inset-y-0 right-0 pr-2 flex items-center""> <button wire:click=""$set('search', null)"" class=""text-gray-300 hover:text-red-600 focus:outline-none""> <x-icons.x-circle class=""h-5 w-5 stroke-current"" /> </button> </div> </div> </div> @endif </div> <div class=""flex items-center space-x-1""> <x-icons.cog wire:loading class=""h-9 w-9 animate-spin text-gray-400"" /> @if($exportable) <div x-data=""{ init() { window.livewire.on('startDownload', link => window.open(link,'_blank')) } }"" x-init=""init""> <button wire:click=""export"" class=""flex items-center space-x-2 px-3 border border-green-400 rounded-md bg-white text-green-500 text-xs leading-4 font-medium uppercase tracking-wider hover:bg-green-200 focus:outline-none""><span>{{ __('Export') }}</span> <x-icons.excel class=""m-2"" /></button> </div> @endif @if($hideable === 'select') @include('datatables::hide-column-multiselect') @endif </div> </div> @if($hideable === 'buttons') <div class=""p-2 grid grid-cols-8 gap-2""> @foreach($this->columns as $index => $column) <button wire:click.prefetch=""toggle('{{ $index }}')"" class=""px-3 py-2 rounded text-white text-xs focus:outline-none {{ $column['hidden'] ? 'bg-blue-100 hover:bg-blue-300 text-blue-600' : 'bg-blue-500 hover:bg-blue-800' }}""> {{ $column['label'] }} </button> @endforeach </div> @endif <div class=""rounded-lg shadow-lg bg-white max-w-screen overflow-auto""> <div class=""rounded-lg @unless($this->hidePagination) rounded-b-none @endif""> <div class=""table align-middle min-w-full""> @unless($this->hideHeader) <div class=""table-row divide-x divide-gray-200""> @foreach($this->columns as $index => $column) @if($hideable === 'inline') @include('datatables::header-inline-hide', ['column' => $column, 'sort' => $sort]) @elseif($column['type'] === 'checkbox') @unless($column['hidden']) <div class=""w-32 py-4 flex justify-center overflow-hidden align-top px-6 border-b border-gray-200 bg-gray-50 text-left text-xs leading-4 font-medium text-gray-500 uppercase tracking-wider focus:outline-none""> <div class=""px-3 py-1 rounded @if(count($selected)) bg-orange-400 @else bg-gray-200 @endif text-white text-center""> {{ count($selected) }} </div> </div> @endunless @else @include('datatables::header-no-hide', ['column' => $column, 'sort' => $sort]) @endif @endforeach </div> <div class=""table-row divide-x divide-blue-200 bg-blue-100""> @foreach($this->columns as $index => $column) @if($column['hidden']) @if($hideable === 'inline') <div class=""table-cell w-5 overflow-hidden align-top bg-blue-100""></div> @endif @elseif($column['type'] === 'checkbox') <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""> <div>SELECT ALL</div> <div> <input type=""checkbox"" wire:click=""toggleSelectAll"" @if(count($selected) === $this->results->total()) checked @endif class=""form-checkbox mt-1 h-4 w-4 text-blue-600 transition duration-150 ease-in-out"" /> </div> </div> @else <div class=""table-cell overflow-hidden align-top""> @isset($column['filterable']) @if( is_iterable($column['filterable']) ) <div wire:key=""{{ $index }}""> @include('datatables::filters.select', ['index' => $index, 'name' => $column['label'], 'options' => $column['filterable']]) </div> @else <div wire:key=""{{ $index }}""> @include('datatables::filters.' . ($column['filterView'] ?? $column['type']), ['index' => $index, 'name' => $column['label']]) </div> @endif @endisset </div> @endif @endforeach </div> @endif @forelse($this->results as $result) <div class=""table-row p-1 divide-x divide-gray-100 {{ isset($result->checkbox_attribute) && in_array($result->checkbox_attribute, $selected) ? 'bg-orange-100' : ($loop->even ? 'bg-gray-100' : 'bg-gray-50') }}""> @foreach($this->columns as $column) @if($column['hidden']) @if($hideable === 'inline') <div class=""table-cell w-5 overflow-hidden align-top""></div> @endif @elseif($column['type'] === 'checkbox') @include('datatables::checkbox', ['value' => $result->checkbox_attribute]) @else <div class=""px-6 py-2 whitespace-no-wrap text-sm leading-5 text-gray-900 table-cell @if($column['align'] === 'right') text-right @elseif($column['align'] === 'center') text-center @else text-left @endif""> {!! $result->{$column['name']} !!} </div> @endif @endforeach </div> @empty <p class=""p-3 text-lg text-teal-600""> {{ __(""There's Nothing to show at the moment"") }} </p> @endforelse </div> </div> @unless($this->hidePagination) <div class=""rounded-lg rounded-t-none max-w-screen border-b border-gray-200 bg-white""> <div class=""p-2 sm:flex items-center justify-between""> {{-- check if there is any data --}} @if(count($this->results)) <div class=""px-8 my-2 sm:my-0 flex items-center""> <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""> @foreach(config('livewire-datatables.per_page_options', [ 10, 25, 50, 100 ]) as $per_page_option) <option value=""{{ $per_page_option }}"">{{ $per_page_option }}</option> @endforeach <option value=""99999999"">{{__('All')}}</option> </select> </div> <div class=""my-4 sm:my-0""> <div class=""lg:hidden""> <span class=""space-x-2"">{{ $this->results->links('datatables::tailwind-simple-pagination') }}</span> </div> <div class=""hidden lg:flex justify-center""> <span>{{ $this->results->links('datatables::tailwind-pagination') }}</span> </div> </div> <div class=""flex justify-end text-gray-600""> {{__('Results')}} {{ $this->results->firstItem() }} - {{ $this->results->lastItem() }} {{__('of')}} {{ $this->results->total() }} </div> @endif </div> </div> @endif </div> </div> @if($afterTableSlot) <div class=""mt-8""> @include($afterTableSlot) </div> @endif </div> "; RegexOptions options = RegexOptions.Multiline | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant; foreach (Match m in Regex.Matches(input, pattern, options)) { Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index); } } }

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 C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx