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

/
/
gm

Test String

Code Generator

Language

Generated Code

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r"(\d{4}\/\d{2}\/\d{2} \d{2}:\d{2}:\d{2})([\s\S])( Crafting plot )([0-9]{1,})( out of)|(Total plot creation time was )([0-9]{1,}\.[0-9]{1,})( sec)+" test_str = ("Search \"(\\d{4}/\\d{2}/\\d{2} \\d{2}:\\d{2}:\\d{2})([\\s\\S])( Crafting plot )([0-9]{1,})( out of)|(Total plot creation time was )([0-9]{1,}\\.[0-9]{1,})( sec)+\" (160 hits in 34 files of 35 searched)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210814_215818.log (2 hits)\n" " Line 8: [2021/08/14 21:58:19] Crafting plot 1 out of 1\n" " Line 59: [2021/08/15 05:44:30] Total plot creation time was 27971.1 sec (466.185 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210815_080836.log (2 hits)\n" " Line 8: [2021/08/15 08:08:37] Crafting plot 1 out of 1\n" " Line 59: [2021/08/15 16:01:17] Total plot creation time was 28359.8 sec (472.663 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210815_170107.log (4 hits)\n" " Line 8: [2021/08/15 17:01:08] Crafting plot 1 out of 2\n" " Line 59: [2021/08/16 00:58:04] Total plot creation time was 28616.2 sec (476.937 min)\n" " Line 61: [2021/08/16 00:58:04] Crafting plot 2 out of 2\n" " Line 113: [2021/08/16 10:07:55] Total plot creation time was 32990.6 sec (549.844 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210816_195304.log (4 hits)\n" " Line 8: [2021/08/16 19:53:05] Crafting plot 1 out of 2\n" " Line 59: [2021/08/17 03:30:48] Total plot creation time was 27462.9 sec (457.714 min)\n" " Line 61: [2021/08/17 03:30:48] Crafting plot 2 out of 2\n" " Line 113: [2021/08/17 12:22:15] Total plot creation time was 31887.6 sec (531.459 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210817_170604.log (7 hits)\n" " Line 8: [2021/08/17 17:06:05] Crafting plot 1 out of 5\n" " Line 59: [2021/08/17 22:52:41] Total plot creation time was 20796.2 sec (346.604 min)\n" " Line 61: [2021/08/17 22:52:41] Crafting plot 2 out of 5\n" " Line 113: [2021/08/18 05:12:56] Total plot creation time was 22815.2 sec (380.254 min)\n" " Line 115: [2021/08/18 05:12:56] Crafting plot 3 out of 5\n" " Line 167: [2021/08/18 11:43:12] Total plot creation time was 23415.4 sec (390.257 min)\n" " Line 169: [2021/08/18 11:43:12] Crafting plot 4 out of 5\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210818_201935.log (1 hit)\n" " Line 8: [2021/08/18 20:19:35] Crafting plot 1 out of 5\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210818_202319.log (9 hits)\n" " Line 8: [2021/08/18 20:23:19] Crafting plot 1 out of 5\n" " Line 59: [2021/08/19 02:07:23] Total plot creation time was 20643.5 sec (344.058 min)\n" " Line 61: [2021/08/19 02:07:23] Crafting plot 2 out of 5\n" " Line 113: [2021/08/19 08:30:26] Total plot creation time was 22983.1 sec (383.051 min)\n" " Line 115: [2021/08/19 08:30:26] Crafting plot 3 out of 5\n" " Line 167: [2021/08/19 15:01:34] Total plot creation time was 23467.9 sec (391.131 min)\n" " Line 169: [2021/08/19 15:01:34] Crafting plot 4 out of 5\n" " Line 223: [2021/08/19 21:34:30] Crafting plot 5 out of 5\n" " Line 275: [2021/08/20 04:10:13] Total plot creation time was 23742.8 sec (395.713 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210820_075125.log (10 hits)\n" " Line 8: [2021/08/20 07:51:26] Crafting plot 1 out of 5\n" " Line 59: [2021/08/20 13:14:31] Total plot creation time was 19385.6 sec (323.094 min)\n" " Line 61: [2021/08/20 13:14:31] Crafting plot 2 out of 5\n" " Line 113: [2021/08/20 19:49:13] Total plot creation time was 23681.4 sec (394.69 min)\n" " Line 115: [2021/08/20 19:49:13] Crafting plot 3 out of 5\n" " Line 167: [2021/08/21 02:40:15] Total plot creation time was 24661.7 sec (411.028 min)\n" " Line 169: [2021/08/21 02:40:15] Crafting plot 4 out of 5\n" " Line 221: [2021/08/21 09:28:17] Total plot creation time was 24482.4 sec (408.041 min)\n" " Line 223: [2021/08/21 09:28:17] Crafting plot 5 out of 5\n" " Line 275: [2021/08/21 16:14:30] Total plot creation time was 24372.8 sec (406.213 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210821_163856.log (5 hits)\n" " Line 8: [2021/08/21 16:38:57] Crafting plot 1 out of 3\n" " Line 61: [2021/08/21 22:08:55] Crafting plot 2 out of 3\n" " Line 113: [2021/08/22 04:45:29] Total plot creation time was 23793.6 sec (396.56 min)\n" " Line 115: [2021/08/22 04:45:29] Crafting plot 3 out of 3\n" " Line 167: [2021/08/22 11:38:12] Total plot creation time was 24763.1 sec (412.718 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210822_125334.log (10 hits)\n" " Line 8: [2021/08/22 12:53:35] Crafting plot 1 out of 5\n" " Line 59: [2021/08/22 18:33:01] Total plot creation time was 20365.5 sec (339.426 min)\n" " Line 61: [2021/08/22 18:33:01] Crafting plot 2 out of 5\n" " Line 113: [2021/08/23 01:02:41] Total plot creation time was 23380.2 sec (389.669 min)\n" " Line 115: [2021/08/23 01:02:41] Crafting plot 3 out of 5\n" " Line 167: [2021/08/23 07:46:55] Total plot creation time was 24254.3 sec (404.238 min)\n" " Line 169: [2021/08/23 07:46:55] Crafting plot 4 out of 5\n" " Line 221: [2021/08/23 14:33:55] Total plot creation time was 24419.7 sec (406.995 min)\n" " Line 223: [2021/08/23 14:33:55] Crafting plot 5 out of 5\n" " Line 275: [2021/08/23 21:25:15] Total plot creation time was 24680.1 sec (411.335 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210823_215042.log (4 hits)\n" " Line 8: [2021/08/23 21:50:43] Crafting plot 1 out of 2\n" " Line 59: [2021/08/24 03:32:59] Total plot creation time was 20535.9 sec (342.264 min)\n" " Line 61: [2021/08/24 03:32:59] Crafting plot 2 out of 2\n" " Line 113: [2021/08/24 10:12:40] Total plot creation time was 23980.9 sec (399.682 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210824_103118.log (2 hits)\n" " Line 8: [2021/08/24 10:31:19] Crafting plot 1 out of 1\n" " Line 59: [2021/08/24 16:10:01] Total plot creation time was 20322.3 sec (338.705 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210824_192912.log (1 hit)\n" " Line 8: [2021/08/24 19:29:13] Crafting plot 1 out of 5\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210825_065842.log (1 hit)\n" " Line 8: [2021/08/25 06:58:43] Crafting plot 1 out of 4\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210825_070602.log (3 hits)\n" " Line 8: [2021/08/25 07:06:03] Crafting plot 1 out of 4\n" " Line 59: [2021/08/25 11:13:14] Total plot creation time was 14830.5 sec (247.175 min)\n" " Line 61: [2021/08/25 11:13:14] Crafting plot 2 out of 4\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210825_195602.log (5 hits)\n" " Line 8: [2021/08/25 19:56:03] Crafting plot 1 out of 4\n" " Line 59: [2021/08/26 00:39:34] Total plot creation time was 17011.1 sec (283.518 min)\n" " Line 61: [2021/08/26 00:39:34] Crafting plot 2 out of 4\n" " Line 113: [2021/08/26 05:55:01] Total plot creation time was 18926.6 sec (315.444 min)\n" " Line 115: [2021/08/26 05:55:01] Crafting plot 3 out of 4\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210826_192325.log (6 hits)\n" " Line 8: [2021/08/26 19:23:26] Crafting plot 1 out of 3\n" " Line 59: [2021/08/27 00:03:25] Total plot creation time was 16798.4 sec (279.974 min)\n" " Line 61: [2021/08/27 00:03:25] Crafting plot 2 out of 3\n" " Line 113: [2021/08/27 05:18:52] Total plot creation time was 18926.7 sec (315.445 min)\n" " Line 115: [2021/08/27 05:18:52] Crafting plot 3 out of 3\n" " Line 167: [2021/08/27 10:40:15] Total plot creation time was 19283.7 sec (321.395 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210827_191654.log (24 hits)\n" " Line 8: [2021/08/27 19:16:55] Crafting plot 1 out of 12\n" " Line 59: [2021/08/27 23:49:48] Total plot creation time was 16372.9 sec (272.882 min)\n" " Line 61: [2021/08/27 23:49:48] Crafting plot 2 out of 12\n" " Line 113: [2021/08/28 05:02:26] Total plot creation time was 18757.4 sec (312.623 min)\n" " Line 115: [2021/08/28 05:02:26] Crafting plot 3 out of 12\n" " Line 167: [2021/08/28 10:25:31] Total plot creation time was 19385.2 sec (323.087 min)\n" " Line 169: [2021/08/28 10:25:31] Crafting plot 4 out of 12\n" " Line 221: [2021/08/28 15:41:21] Total plot creation time was 18950.1 sec (315.835 min)\n" " Line 223: [2021/08/28 15:41:21] Crafting plot 5 out of 12\n" " Line 275: [2021/08/28 21:03:05] Total plot creation time was 19303.4 sec (321.723 min)\n" " Line 277: [2021/08/28 21:03:05] Crafting plot 6 out of 12\n" " Line 329: [2021/08/29 02:33:41] Total plot creation time was 19836.5 sec (330.609 min)\n" " Line 331: [2021/08/29 02:33:41] Crafting plot 7 out of 12\n" " Line 383: [2021/08/29 08:11:10] Total plot creation time was 20248.5 sec (337.475 min)\n" " Line 385: [2021/08/29 08:11:10] Crafting plot 8 out of 12\n" " Line 437: [2021/08/29 13:54:20] Total plot creation time was 20589.9 sec (343.164 min)\n" " Line 439: [2021/08/29 13:54:20] Crafting plot 9 out of 12\n" " Line 491: [2021/08/29 19:43:06] Total plot creation time was 20925.8 sec (348.763 min)\n" " Line 493: [2021/08/29 19:43:06] Crafting plot 10 out of 12\n" " Line 545: [2021/08/30 01:33:24] Total plot creation time was 21018.6 sec (350.31 min)\n" " Line 547: [2021/08/30 01:33:24] Crafting plot 11 out of 12\n" " Line 599: [2021/08/30 07:09:25] Total plot creation time was 20161.1 sec (336.018 min)\n" " Line 601: [2021/08/30 07:09:26] Crafting plot 12 out of 12\n" " Line 653: [2021/08/30 12:32:45] Total plot creation time was 19399.8 sec (323.329 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210830_132951.log (19 hits)\n" " Line 8: [2021/08/30 13:29:52] Crafting plot 1 out of 19\n" " Line 59: [2021/08/30 18:08:31] Total plot creation time was 16718.3 sec (278.639 min)\n" " Line 61: [2021/08/30 18:08:31] Crafting plot 2 out of 19\n" " Line 113: [2021/08/30 23:29:36] Total plot creation time was 19265.2 sec (321.087 min)\n" " Line 115: [2021/08/30 23:29:36] Crafting plot 3 out of 19\n" " Line 167: [2021/08/31 04:55:44] Total plot creation time was 19567.8 sec (326.13 min)\n" " Line 169: [2021/08/31 04:55:44] Crafting plot 4 out of 19\n" " Line 221: [2021/08/31 10:26:51] Total plot creation time was 19867.6 sec (331.126 min)\n" " Line 223: [2021/08/31 10:26:51] Crafting plot 5 out of 19\n" " Line 275: [2021/08/31 15:55:57] Total plot creation time was 19745.8 sec (329.097 min)\n" " Line 277: [2021/08/31 15:55:57] Crafting plot 6 out of 19\n" " Line 329: [2021/08/31 21:31:45] Total plot creation time was 20147.4 sec (335.79 min)\n" " Line 331: [2021/08/31 21:31:45] Crafting plot 7 out of 19\n" " Line 383: [2021/09/01 03:09:05] Total plot creation time was 20239.9 sec (337.331 min)\n" " Line 385: [2021/09/01 03:09:05] Crafting plot 8 out of 19\n" " Line 437: [2021/09/01 08:42:33] Total plot creation time was 20008.7 sec (333.478 min)\n" " Line 439: [2021/09/01 08:42:34] Crafting plot 9 out of 19\n" " Line 491: [2021/09/01 14:24:04] Total plot creation time was 20490.3 sec (341.504 min)\n" " Line 493: [2021/09/01 14:24:04] Crafting plot 10 out of 19\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210901_192805.log (3 hits)\n" " Line 8: [2021/09/01 19:28:06] Crafting plot 1 out of 10\n" " Line 59: [2021/09/02 05:23:04] Total plot creation time was 35698.2 sec (594.969 min)\n" " Line 61: [2021/09/02 05:23:04] Crafting plot 2 out of 10\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_064600.log (1 hit)\n" " Line 8: [2021/09/02 06:46:01] Crafting plot 1 out of 10\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_074518.log (1 hit)\n" " Line 8: [2021/09/02 07:45:19] Crafting plot 1 out of 1\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_082604.log (1 hit)\n" " Line 8: [2021/09/02 08:26:05] Crafting plot 1 out of 1\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_101102.log (1 hit)\n" " Line 8: [2021/09/02 10:11:03] Crafting plot 1 out of 1\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_102847.log (1 hit)\n" " Line 8: [2021/09/02 10:28:47] Crafting plot 1 out of 1\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_103626.log (1 hit)\n" " Line 8: [2021/09/02 10:36:26] Crafting plot 1 out of 1\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_104425.log (1 hit)\n" " Line 8: [2021/09/02 10:44:25] Crafting plot 1 out of 1\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_105521.log (1 hit)\n" " Line 8: [2021/09/02 10:55:21] Crafting plot 1 out of 1\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_105730.log (2 hits)\n" " Line 8: [2021/09/02 10:57:30] Crafting plot 1 out of 1\n" " Line 59: [2021/09/02 17:41:48] Total plot creation time was 24257.6 sec (404.294 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210902_194626.log (6 hits)\n" " Line 8: [2021/09/02 19:46:27] Crafting plot 1 out of 8\n" " Line 59: [2021/09/02 23:41:53] Total plot creation time was 14126.2 sec (235.437 min)\n" " Line 61: [2021/09/02 23:41:54] Crafting plot 2 out of 8\n" " Line 113: [2021/09/03 04:10:59] Total plot creation time was 16145.6 sec (269.093 min)\n" " Line 115: [2021/09/03 04:10:59] Crafting plot 3 out of 8\n" " Line 169: [2021/09/03 08:47:55] Crafting plot 4 out of 8\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210903_162148.log (1 hit)\n" " Line 8: [2021/09/03 16:21:48] Crafting plot 1 out of 5\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210903_162232.log (9 hits)\n" " Line 8: [2021/09/03 16:22:32] Crafting plot 1 out of 5\n" " Line 59: [2021/09/03 20:16:25] Total plot creation time was 14033.3 sec (233.889 min)\n" " Line 61: [2021/09/03 20:16:25] Crafting plot 2 out of 5\n" " Line 113: [2021/09/04 00:50:23] Total plot creation time was 16437.6 sec (273.96 min)\n" " Line 115: [2021/09/04 00:50:23] Crafting plot 3 out of 5\n" " Line 169: [2021/09/04 05:37:19] Crafting plot 4 out of 5\n" " Line 221: [2021/09/04 10:29:36] Total plot creation time was 17536.8 sec (292.279 min)\n" " Line 223: [2021/09/04 10:29:36] Crafting plot 5 out of 5\n" " Line 275: [2021/09/04 15:23:39] Total plot creation time was 17643.1 sec (294.052 min)\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210904_180755.log (5 hits)\n" " Line 8: [2021/09/04 18:07:56] Crafting plot 1 out of 5\n" " Line 59: [2021/09/04 22:13:54] Total plot creation time was 14758.6 sec (245.976 min)\n" " Line 61: [2021/09/04 22:13:54] Crafting plot 2 out of 5\n" " Line 113: [2021/09/05 03:04:06] Total plot creation time was 17411.3 sec (290.188 min)\n" " Line 115: [2021/09/05 03:04:06] Crafting plot 3 out of 5\n" " C:\\crypto\\madmax-plotter\\logs\\ploter_20210905_160040.log (7 hits)\n" " Line 8: [2021/09/05 16:00:40] Crafting plot 1 out of 10\n" " Line 59: [2021/09/05 20:36:13] Total plot creation time was 16532.7 sec (275.544 min)\n" " Line 61: [2021/09/05 20:36:13] Crafting plot 2 out of 10\n" " Line 113: [2021/09/06 01:39:51] Total plot creation time was 18218.2 sec (303.637 min)\n" " Line 115: [2021/09/06 01:39:51] Crafting plot 3 out of 10\n" " Line 167: [2021/09/06 07:09:28] Total plot creation time was 19777.3 sec (329.622 min)\n" " Line 169: [2021/09/06 07:09:28] Crafting plot 4 out of 10\n") matches = re.finditer(regex, test_str, re.MULTILINE) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.

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 Python, please visit: https://docs.python.org/3/library/re.html