Regular Expressions 101

Save & Share

  • Regex Version: ver. 1
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
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

/
/
gm

Test String

Code Generator

Language

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)\s*([\w ]+):\s*("(?:\\"[^,]|\\"|\\|[^\"])+"|[^,]*)(?:,|$)" Local $sString = "1girl" & @CRLF & _ "Negative prompt: art by xynon-bad-11k-2" & @CRLF & _ "Steps: 24, Sampler: DPM++ 2M Karras, CFG scale: 7, Seed: 425230810, Size: 640x640, Model hash: b836e500e5, Model: silica_base2-rebasin, Denoising strength: 0.5, CFG Rescale phi: 0, Hires upscale: 1.6, Hires steps: 14, Hires upscaler: 4x_DPED, TI hashes: "xynon-bad-11k-2: 796c84e2a27c", ComfyUI Workflows: "{\"postprocess_latent\": {\"last_node_id\": 22, \"last_link_id\": 330, \"nodes\": [{\"id\": 4, \"type\": \"ToWebui\", \"pos\": [937, 80], \"size\": [240, 60], \"flags\": {\"collapsed\": true}, \"order\": 10, \"mode\": 0, \"inputs\": [{\"name\": \"LATENT\", \"type\": \"LATENT\", \"link\": 85}], \"properties\": {\"Node name for S&R\": \"ToWebui\"}}, {\"id\": 3, \"type\": \"FromWebui\", \"pos\": [-123, 110], \"size\": [240, 60], \"flags\": {\"collapsed\": true}, \"order\": 0, \"mode\": 0, \"outputs\": [{\"name\": \"LATENT\", \"type\": \"LATENT\", \"links\": [18, 20, 108], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"FromWebui\"}, \"widgets_values\": [\"0.80553704976941531692335377331\"]}, {\"id\": 13, \"type\": \"VAEDecode\", \"pos\": [2344, 364], \"size\": {\"0\": 210, \"1\": 46}, \"flags\": {\"collapsed\": true}, \"order\": 9, \"mode\": 0, \"inputs\": [{\"name\": \"samples\", \"type\": \"LATENT\", \"link\": 35, \"slot_index\": 0}, {\"name\": \"vae\", \"type\": \"VAE\", \"link\": 326}], \"outputs\": [{\"name\": \"IMAGE\", \"type\": \"IMAGE\", \"links\": [17], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"VAEDecode\"}}, {\"id\": 12, \"type\": \"VAEDecode\", \"pos\": [1798, 365], \"size\": {\"0\": 210, \"1\": 46}, \"flags\": {\"collapsed\": true}, \"order\": 5, \"mode\": 0, \"inputs\": [{\"name\": \"samples\", \"type\": \"LATENT\", \"link\": 13, \"slot_index\": 0}, {\"name\": \"vae\", \"type\": \"VAE\", \"link\": 325}], \"outputs\": [{\"name\": \"IMAGE\", \"type\": \"IMAGE\", \"links\": [12], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"VAEDecode\"}}, {\"id\": 16, \"type\": \"VAEDecode\", \"pos\": [1252, 361], \"size\": {\"0\": 210, \"1\": 46}, \"flags\": {\"collapsed\": true}, \"order\": 2, \"mode\": 0, \"inputs\": [{\"name\": \"samples\", \"type\": \"LATENT\", \"link\": 20, \"slot_index\": 0}, {\"name\": \"vae\", \"type\": \"VAE\", \"link\": 324, \"slot_index\": 1}], \"outputs\": [{\"name\": \"IMAGE\", \"type\": \"IMAGE\", \"links\": [19], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"VAEDecode\"}}, {\"id\": 6, \"type\": \"KSampler\", \"pos\": [280, 320], \"size\": {\"0\": 315, \"1\": 474}, \"flags\": {}, \"order\": 3, \"mode\": 0, \"inputs\": [{\"name\": \"model\", \"type\": \"MODEL\", \"link\": 322}, {\"name\": \"positive\", \"type\": \"CONDITIONING\", \"link\": 327}, {\"name\": \"negative\", \"type\": \"CONDITIONING\", \"link\": 329}, {\"name\": \"latent_image\", \"type\": \"LATENT\", \"link\": 18}], \"outputs\": [{\"name\": \"LATENT\", \"type\": \"LATENT\", \"links\": [13, 109], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"KSampler\"}, \"widgets_values\": [0, \"fixed\", 24, 7, \"dpmpp_2m\", \"karras\", 0.75]}, {\"id\": 22, \"type\": \"LatentMix_AS\", \"pos\": [479, -29], \"size\": {\"0\": 315, \"1\": 78}, \"flags\": {}, \"order\": 6, \"mode\": 0, \"inputs\": [{\"name\": \"samples_to\", \"type\": \"LATENT\", \"link\": 108}, {\"name\": \"samples_from\", \"type\": \"LATENT\", \"link\": 109}], \"outputs\": [{\"name\": \"LATENT\", \"type\": \"LATENT\", \"links\": [110], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"LatentMix_AS\"}, \"widgets_values\": [75]}, {\"id\": 15, \"type\": \"PreviewImage\", \"pos\": [1251, 399], \"size\": [534.216472512637, 557.6668966527877], \"flags\": {}, \"order\": 4, \"mode\": 0, \"inputs\": [{\"name\": \"images\", \"type\": \"IMAGE\", \"link\": 19, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"PreviewImage\"}}, {\"id\": 11, \"type\": \"PreviewImage\", \"pos\": [1795, 405], \"size\": [516.968461609013, 545.2371885977157], \"flags\": {}, \"order\": 7, \"mode\": 0, \"inputs\": [{\"name\": \"images\", \"type\": \"IMAGE\", \"link\": 12}], \"properties\": {\"Node name for S&R\": \"PreviewImage\"}}, {\"id\": 14, \"type\": \"PreviewImage\", \"pos\": [2333, 400], \"size\": [519.1521322304691, 556.8946847014162], \"flags\": {}, \"order\": 11, \"mode\": 0, \"inputs\": [{\"name\": \"images\", \"type\": \"IMAGE\", \"link\": 17, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"PreviewImage\"}}, {\"id\": 20, \"type\": \"KSampler\", \"pos\": [898, 628], \"size\": {\"0\": 315, \"1\": 474}, \"flags\": {}, \"order\": 8, \"mode\": 0, \"inputs\": [{\"name\": \"model\", \"type\": \"MODEL\", \"link\": 323}, {\"name\": \"positive\", \"type\": \"CONDITIONING\", \"link\": 328}, {\"name\": \"negative\", \"type\": \"CONDITIONING\", \"link\": 330}, {\"name\": \"latent_image\", \"type\": \"LATENT\", \"link\": 110}], \"outputs\": [{\"name\": \"LATENT\", \"type\": \"LATENT\", \"links\": [35, 85], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"KSampler\"}, \"widgets_values\": [1, \"fixed\", 24, 9, \"dpmpp_2m\", \"karras\", 0.55]}, {\"id\": 19, \"type\": \"WebuiParams\", \"pos\": [-293, 223.00000000000003], \"size\": {\"0\": 315, \"1\": 186}, \"flags\": {\"collapsed\": false}, \"order\": 1, \"mode\": 0, \"inputs\": [], \"outputs\": [{\"name\": \"MODEL\", \"type\": \"MODEL\", \"links\": [322, 323], \"shape\": 3, \"slot_index\": 0}, {\"name\": \"VAE\", \"type\": \"VAE\", \"links\": [324, 325, 326], \"shape\": 3, \"slot_index\": 1}, {\"name\": \"CONDITIONING\", \"type\": \"CONDITIONING\", \"links\": [327, 328], \"shape\": 3, \"slot_index\": 2}, {\"name\": \"CONDITIONING\", \"type\": \"CONDITIONING\", \"links\": [329, 330], \"shape\": 3, \"slot_index\": 3}], \"title\": \"WebuiParams\", \"properties\": {\"nestedData\": {\"nestedNodes\": [{\"id\": 7, \"type\": \"WebuiCheckpointLoader\", \"pos\": [-641.75, 129.62500000000006], \"size\": {\"0\": 315, \"1\": 98}, \"flags\": {\"collapsed\": false}, \"order\": 1, \"mode\": 0, \"outputs\": [{\"name\": \"MODEL\", \"type\": \"MODEL\", \"links\": [313, 314], \"shape\": 3, \"slot_index\": 0}, {\"name\": \"CLIP\", \"type\": \"CLIP\", \"links\": [311, 312], \"shape\": 3, \"slot_index\": 1}, {\"name\": \"VAE\", \"type\": \"VAE\", \"links\": [315, 316, 317], \"shape\": 3, \"slot_index\": 2}], \"properties\": {\"Node name for S&R\": \"WebuiCheckpointLoader\"}, \"widgets_values\": [\"0.8629134962031651692335312135\"]}, {\"id\": 8, \"type\": \"WebuiPrompts\", \"pos\": [-538.75, 288.45833333333337], \"size\": {\"0\": 315, \"1\": 78}, \"flags\": {\"collapsed\": false}, \"order\": 2, \"mode\": 0, \"outputs\": [{\"name\": \"positive\", \"type\": \"STRING\", \"links\": [309], \"shape\": 3, \"slot_index\": 0}, {\"name\": \"negative\", \"type\": \"STRING\", \"links\": [310], \"shape\": 3, \"slot_index\": 1}], \"properties\": {\"Node name for S&R\": \"WebuiPrompts\"}, \"widgets_values\": [\"0.73159882442417671692335312135\"]}, {\"id\": 10, \"type\": \"CLIPTextEncode\", \"pos\": [1.25, 173.45833333333337], \"size\": {\"0\": 210, \"1\": 54}, \"flags\": {\"collapsed\": false}, \"order\": 5, \"mode\": 0, \"inputs\": [{\"name\": \"clip\", \"type\": \"CLIP\", \"link\": 311}, {\"name\": \"text\", \"type\": \"STRING\", \"link\": 309, \"widget\": {\"name\": \"text\", \"config\": [\"STRING\", {\"multiline\": true}]}}], \"outputs\": [{\"name\": \"CONDITIONING\", \"type\": \"CONDITIONING\", \"links\": [318, 319], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"CLIPTextEncode\"}, \"widgets_values\": [\"\"]}, {\"id\": 21, \"type\": \"CLIPTextEncode\", \"pos\": [7.25, 300.45833333333337], \"size\": {\"0\": 210, \"1\": 54}, \"flags\": {\"collapsed\": false}, \"order\": 6, \"mode\": 0, \"inputs\": [{\"name\": \"clip\", \"type\": \"CLIP\", \"link\": 312}, {\"name\": \"text\", \"type\": \"STRING\", \"link\": 310, \"widget\": {\"name\": \"text\", \"config\": [\"STRING\", {\"multiline\": true}]}}], \"outputs\": [{\"name\": \"CONDITIONING\", \"type\": \"CONDITIONING\", \"links\": [320, 321], \"shape\": 3, \"slot_index\": 0}], \"properties\": {\"Node name for S&R\": \"CLIPTextEncode\"}, \"widgets_values\": [\"\"]}]}}, \"widgets_values\": [\"0.81786936757995141692335377331\", \"0.59144547180798461692335377331\", \"\", \"\"]}], \"links\": [[12, 12, 0, 11, 0, \"IMAGE\"], [13, 6, 0, 12, 0, \"LATENT\"], [17, 13, 0, 14, 0, \"IMAGE\"], [18, 3, 0, 6, 3, \"LATENT\"], [19, 16, 0, 15, 0, \"IMAGE\"], [20, 3, 0, 16, 0, \"LATENT\"], [35, 20, 0, 13, 0, \"LATENT\"], [85, 20, 0, 4, 0, \"LATENT\"], [108, 3, 0, 22, 0, \"LATENT\"], [109, 6, 0, 22, 1, \"LATENT\"], [110, 22, 0, 20, 3, \"LATENT\"], [322, 19, 0, 6, 0, \"MODEL\"], [323, 19, 0, 20, 0, \"MODEL\"], [324, 19, 1, 16, 1, \"VAE\"], [325, 19, 1, 12, 1, \"VAE\"], [326, 19, 1, 13, 1, \"VAE\"], [327, 19, 2, 6, 1, \"CONDITIONING\"], [328, 19, 2, 20, 1, \"CONDITIONING\"], [329, 19, 3, 6, 2, \"CONDITIONING\"], [330, 19, 3, 20, 2, \"CONDITIONING\"]], \"groups\": [], \"config\": {}, \"extra\": {}, \"version\": 0.4}}", Version: v1.5.1-RC-12-g68f336bd" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "Result")

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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm