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

/
/
gm

Test String

Code Generator

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)(?:^|[^%])(?:%%)*(%(?:\d+\$)?(?:\+)?(?:0|'.)?(?:\-)?(?:\d+)?(?:\.\d+)?[bcdeEufFgGosxX])" Local $sString = "<?php" & @CRLF & _ "$n = 43951789;" & @CRLF & _ "$u = -43951789;" & @CRLF & _ "$c = 65; // ASCII コードの 65 は 'A' です" & @CRLF & _ "" & @CRLF & _ "// %% に注目しましょう。これは、リテラル '%' を文字として出力します" & @CRLF & _ "printf("%%b = '%b'\n", $n); // 2 進表現" & @CRLF & _ "printf("%%c = '%c'\n", $c); // ascii 文字を表示します。chr() 関数と同じです" & @CRLF & _ "printf("%%d = '%d'\n", $n); // 標準の整数表現" & @CRLF & _ "printf("%%e = '%e'\n", $n); // 科学記法" & @CRLF & _ "printf("%%u = '%u'\n", $n); // 正の整数の、符号なし整数表現" & @CRLF & _ "printf("%%u = '%u'\n", $u); // 負の整数の、符号なし整数表現" & @CRLF & _ "printf("%%f = '%f'\n", $n); // 浮動小数点表現" & @CRLF & _ "printf("%%o = '%o'\n", $n); // 8 進表現" & @CRLF & _ "printf("%%s = '%s'\n", $n); // 文字列表現" & @CRLF & _ "printf("%%x = '%x'\n", $n); // 16 進表現 (小文字)" & @CRLF & _ "printf("%%X = '%X'\n", $n); // 16 進表現 (大文字)" & @CRLF & _ "" & @CRLF & _ "printf("%%+d = '%+d'\n", $n); // 正の整数に符号指定子を使用" & @CRLF & _ "printf("%%+d = '%+d'\n", $u); // 負の整数に符号指定子を使用" & @CRLF & _ "?>" & @CRLF & _ "" & @CRLF & _ "<?php" & @CRLF & _ "$s = 'monkey';" & @CRLF & _ "$t = 'many monkeys';" & @CRLF & _ "" & @CRLF & _ "printf("[%s]\n", $s); // 標準の文字列出力" & @CRLF & _ "printf("[%10s]\n", $s); // 空白を使用して右詰め" & @CRLF & _ "printf("[%-10s]\n", $s); // 空白を使用して左詰め" & @CRLF & _ "printf("[%010s]\n", $s); // ゼロ埋めは文字列でも可能です" & @CRLF & _ "printf("[%'#10s]\n", $s); // ゼロの代わりに独自の文字 '#' で埋めます" & @CRLF & _ "printf("[%10.10s]\n", $t); // 左詰めを行い、10 文字以上は切り捨てます" & @CRLF & _ "?>" & @CRLF & _ "例9 sprintf(): 整数のゼロ埋め" & @CRLF & _ "" & @CRLF & _ "<?php" & @CRLF & _ "$isodate = sprintf("%04d-%02d-%02d", $year, $month, $day);" & @CRLF & _ "?>" & @CRLF & _ "例10 sprintf(): 通貨をフォーマットする例" & @CRLF & _ "" & @CRLF & _ "<?php" & @CRLF & _ "$money1 = 68.75;" & @CRLF & _ "$money2 = 54.35;" & @CRLF & _ "$money = $money1 + $money2;" & @CRLF & _ "// echo $money は "123.1" を出力します。" & @CRLF & _ "$formatted = sprintf("%01.2f", $money);" & @CRLF & _ "// echo $formatted は "123.10"を出力します" & @CRLF & _ "?>" & @CRLF & _ "例11 sprintf(): 科学記法" & @CRLF & _ "" & @CRLF & _ "<?php" & @CRLF & _ "$number = 362525200;" & @CRLF & _ "" & @CRLF & _ "echo sprintf("%.3e", $number); // 3.625e+8 を出力します" & @CRLF & _ "?>" & @CRLF & _ "" & @CRLF & _ "" 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