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

/
/
g

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 = "<img src="(?<SRC>[^"]+)" width="(?<WIDTH>[^"]*)" alt="(?<ALT>[^"]*)" title="(?<TITLE>[^"]*)" \/>" Local $sString = "---" & @CRLF & _ "creation date: 2023-01-06 20:04" & @CRLF & _ "description: A test file" & @CRLF & _ "modification date: 2023-01-14 10:17" & @CRLF & _ "obsidianUIMode: source" & @CRLF & _ "tags:" & @CRLF & _ "- programming" & @CRLF & _ "---" & @CRLF & _ " " & @CRLF & _ "This is the child file " & @CRLF & _ " " & @CRLF & _ "# Embed2 " & @CRLF & _ " " & @CRLF & _ "Your modes, all markdown ones: " & @CRLF & _ "**1** <img src="001%20assets/AsexualPrideFlag.png" width="100" alt="The Asexual Flag" title="The Asexual Flag" /> " & @CRLF & _ "**2** <img src="001%20assets/AsexualPrideFlag.png" width="100" alt="" title="" /> " & @CRLF & _ "3 <img src="001%20assets/AsexualPrideFlag.svg" width="100" alt="The Asexual Flag" title="The Asexual Flag" /> " & @CRLF & _ "4 <img src="001%20assets/AsexualPrideFlag.svg" width="100" alt="The Asexual Flag" title="The Asexual Flag" /> " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Wikilink-embeds: " & @CRLF & _ "**5** ![](001%20assets/AsexualPrideFlag.png) " & @CRLF & _ "6 ![](001%20assets/AsexualPrideFlag.svg) " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Wikilink-embeds with names: " & @CRLF & _ "**7** <img src="001%20assets/AsexualPrideFlag.png" width="" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ "8 <img src="001%20assets/AsexualPrideFlag.svg" width="" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Wikilink-embeds with sizing " & @CRLF & _ "**9** <img src="001%20assets/AsexualPrideFlag.png" width="100" alt="" title="" /> " & @CRLF & _ "10 <img src="001%20assets/AsexualPrideFlag.svg" width="100" alt="" title="" /> " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Wikilink-embeds with sizing and names " & @CRLF & _ "**11** <img src="001%20assets/AsexualPrideFlag.png" width="100" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ "12 <img src="001%20assets/AsexualPrideFlag.svg" width="100" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Markdown-embeds: " & @CRLF & _ "**13** ![](001%20assets/AsexualPrideFlag.png) " & @CRLF & _ "14 ![](001%20assets/AsexualPrideFlag.svg) " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Markdown-embeds with names: " & @CRLF & _ "**15** <img src="001%20assets/AsexualPrideFlag.png" width="100" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ "16 <img src="001%20assets/AsexualPrideFlag.svg" width="100" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Markdown-embeds with sizing " & @CRLF & _ "**17** <img src="001%20assets/AsexualPrideFlag.png" width="100" alt="" title="" /> " & @CRLF & _ "18 <img src="001%20assets/AsexualPrideFlag.svg" width="100" alt="" title="" /> " & @CRLF & _ " " & @CRLF & _ "// " & @CRLF & _ " " & @CRLF & _ "Markdown-embeds with sizing and names " & @CRLF & _ "**19** <img src="001%20assets/AsexualPrideFlag.png" width="100" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ "20 <img src="001%20assets/AsexualPrideFlag.svg" width="100" alt="Asexual Pride Flag" title="Asexual Pride Flag" /> " & @CRLF & _ " " & @CRLF & _ "All images with at **bolded numbers** are PNG's, all others SVG's. " & @CRLF & _ " " & @CRLF & _ "# EOF" 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